38results about How to "No deformation damage" patented technology

The invention discloses a switch cabinet mechanical interlocking matched set, which comprises a program lock and an interlocking piece. The program lock and the interlocking piece are arranged in a cabinet body and fixedly connected with each other; the cabinet body is provided with a breaker, a breaker chassis truck is arranged below the breaker and provided with a keyed end; the interlocking piece is movably connected with the program lock through a program lock pin; the interlocking piece comprises a linkage part, a rotating main shaft and a stop part which are mutually connected; the linkage part is movably connected with the program lock through the program locking pin; the linkage part comprises upper and lower linkage plates and a main shaft linkage blade; the upper and lower linkage plates comprise a plate bottom side, a linkage plate side and a fixed plate side which are vertical to one another; the stop part comprises a main shaft driving block, a push plate and a stopping pad block; the push plate comprises a wedged plate and a push rod; and the stopping pad block is provided with a thickening pad block. The switch cabinet mechanical interlocking matched set has the advantages of high reliability, high replaceability, simple structure, convenient operation and long service life.

The invention belongs to the field of tissue engineering, in particular to a cell sheet engineering and a preparation method thereof. The cell sheet is prepared with the following methods: firstly, an electron accelerator is used for radiating on the surface of the cell culture supporter for synthesizing poly-N-isopropylacrylamide; then, temperature is controlled to cause the poly-N-isopropylacrylamide to be hydrophobicity phase, and cells are cultured on the phase; temperature is changed to cause hydrogel to be hydrophilic phase; with the method that a polymeric membrane is used for adsorbing or a clamp is used for clamping to separate the cell sheet engineering. Obtained cell sheets are cultivated by multiple stratification, or protein adhering liquid is used for adhering to obtain multiple layers of cell sheets. The cell sheet obtained by the invention can keep desmosome structure between cells, ZO-1 tight connection structure and the connection structure between other cells, can keep basement membrane protein and a plurality of components thereof relative to adhesion, such as integrin and the like and has certain strength.

The invention relates to a compressing device of an optical inspection instrument, which comprises a pressing plate tooth claw (4) which is arranged at one side of a PCB board (1) and an L-shaped lever (3) which is fixedly connected with the pressing plate tooth claw (4), wherein the turning point of the L-shaped lever (3) is connected with a rotating shaft (5) in a rotation way and is arranged on a clamp platform (9), the bottom end of the L-shaped lever (3) is connected with a rolling bearing (6) in a rotation way, a fixed seat (7) is fixed on a horizontal platform in the movement direction of the PCB board (1), a pullback spring (2) is connected with one end of the L-shaped lever (3) which is free from having the rolling bearing (6) and with a pullback spring fixed plate (8) which is arranged on the clamp platform (9). The fixing device of the optical inspection instrument has the advantages that: with the pullback spring, the impact which is produced on the PCB board when the pressing plate tooth claw is pressed can be effectively released, the pressing plate tooth claw can be fixed, and the inspection precision is improved.

The invention discloses an Mg-Y-Nd-(La+Ce)-Zr biodegradable magnesium alloy and a manufacturing method thereof. The Mg-Y-Nd-(La+Ce)-Zr biodegradable magnesium alloy is characterized in that the magnesium alloy is manufactured from the following components in percentage by mass: 3.0-4.5% of Y, 2.0-3.5% of Nd, 0.3-1.0% of Zr, 0.05-0.5% of lanthanum cerium composite rare earth, and the balance beingmagnesium and inevitable impurities, wherein the impurity content is less than or equal to 0.1%, and lanthanum content and cerium content in the lanthanum cerium composite rare earth each account for50%; and the manufacturing method comprises the steps: batching, casting, annealing, extruding, and obtaining finished products. According to the magnesium alloy and the manufacturing method, a multi-element and small-amount design method is adopted, the proportion is scientific and reasonable, the manufacturing process is simple, the manufactured magnesium alloy is high in compactness, reliable in quality, excellent in mechanical property and corrosion resistance, controllable in degradation speed and excellent in biocompatibility, meanwhile, a cardiovascular stent made of the magnesium alloycannot be damaged for deformation and can be well matched with human tissues, and therefore the magnesium alloy has wide application prospects in the medical field.

The invention relates to the field of wood board bending equipment, in particular to a wood board bending method. The wood board bending method comprises the steps that a wood bending machine is prepared; a wood board is mounted; a hydraulic cylinder is started; a hydraulic cylinder output shaft is controlled to slowly extend and retract within the extension stroke being 2-4cm; the hydraulic cylinder output shaft is controlled to retract 30-50cm at a time; and the bent and formed wood board is taken out. When the hydraulic cylinder output shaft extends, racks make linear motion downwards, gears engaged with the racks rotate towards the racks, one ends of bundled steel wires are fixed to the gears, the other ends of the bundled steel wires are fixed to the wood board, the gears tighten the bundled steel wires when the gears rotate towards the racks, and the bundled steel wires are shortened so that the wood board is attached to a mould till the wood board is stretched and then is subjected to bending forming. With the implementation of the technical scheme, a bending forming failure is avoided due to the fact that the two ends of the wood board are stressed sufficiently, and the wood board is saved.

The invention relates to a reducing two-way pipe joint and a reducing two-way pipe joint component. The reducing two-way pipe joint component comprises the reducing two-way pipe joint, and fastening screw caps in threaded connection with the reducing two-way pipe joint, wherein the reducing two-way pipe joint is axially provided with two connecting sleeves; the inner diameter sizes of the two connecting sleeves are different; the outer diameter sizes of the two connecting sleeves are different; a main body of the reducing two-way pipe joint is provided with two connecting sleeves for coating connecting pipes and connecting threads corresponding to the connecting sleeves for connecting with corresponding fastening screw caps; the fastening screw caps are in threaded connection to the main body of the pipe joint; at least one elastic barb is arranged on the outer peripheral surfaces of the connecting sleeves in the peripheral direction; the head ends of the elastic barbs are connected with the connecting sleeves, and the tail ends are inclined to ports far from the sleeves; and the elastic barbs are elastically deformed when being extruded by the connecting pipes. The damage of pressing force to connecting hoses in screwing-up of the fastening screw caps can be reduced; the service life of the connecting pipes is prolonged; and the installation of the fastening screw caps is convenient.

The invention relates to a pipe connector and a pipe connector assembly. The pipe connector assembly comprises the pipe connector and fastening nuts in threaded connection with the pipe connector. At least one connecting sleeve used for being connected with a connecting pipe in a sleeving mode and a connecting thread which corresponds to the connecting sleeve and is used for being connected with the corresponding fastening nut are arranged on a pipe connector body. The fastening nuts are connected to the pipe connector body in a threaded mode. At least one elastic barb used for elastic deformation when squeezed by a connected pipe is arranged on the outer circumferential surface of each connecting sleeve in the circumferential direction, wherein the initial end of each elastic barb is connected with the corresponding connecting sleeve, and the tail end of each elastic bard inclines towards an end opening away from the corresponding sleeve. According to the pipe connector and the pipe connector assembly, damage to the connecting flexible pipe by pressing force when the fastening nuts are screwed can be reduced, the service life of the connecting pipe is prolonged, and the fastening nuts can be installed conveniently.

The invention relates to a springback device, a carriage cover and a pickup truck. The springback device comprises a fixed pulley assembly, a movable pulley assembly, a spring and a scroll, wherein the fixed pulley assembly comprises a fixed pulley and a first metal connecting barrel; the movable pulley assembly comprises a movable pulley and a second metal connecting barrel; the scroll sleeves the spring; the fixed pulley, the first metal connecting barrel, the spring, the second metal connecting barrel and the movable pulley are sequentially connected; the movable pulley is fixedly connectedto the scroll. The springback device is high in strength; and the working reliability of the carriage cover can be effectively improved.

The invention discloses an elastic rubber material applicable to work at a high temperature. The elastic rubber material is prepared from, by weight, 1.6-2 parts of Arabic gum, 1-2 parts of zinc dialkyl dithiophosphate, 1-1.4 parts of accelerant DM, 2-3 parts of epoxy tall butyl oleate, 1-1.4 parts of hexamethyl cyclotrisiloxane, 24-27 parts of polyacrylonitrile, 12-13 parts of graphite, 3-4 parts of coal ash microbeads, 0.7-1 part of lauryl sodium sulfate, 42-55 parts of liquid nitrile rubber, 0.6-1 part of methacrylic acid, 52-60 parts of chemigum, 20-25 parts of butadiene styrene rubber, 23-25 parts of coking coal powder, 4-5 parts of urea, 8-11 parts of carbon black, 14-17 parts of aluminium nitride and 2-3 parts of thiuram. The prepared rubber material is good in stability, high in thermal conductivity, capable of bearing the high temperature, free of deformation and damage, meanwhile good in strength, good in chemical corrosion resistance, good in impact elasticity, high in wear resistance and long in service life.

The invention discloses an automatic steel fireproof roller shutter. The automatic steel fireproof roller shutter comprises a guide rail, shutter plates, a shutter rolling machine, a roller shutter controller, a scroll and a spraying system. The shutter plates are connected in series into a door curtain and mounted in the fixed guide rail. The upper end of the door curtain is connected with the horizontally arranged scroll and rotates around the central axis of the scroll to open and close the roller shutter up and down. The spraying system comprises a spraying pipe and an electromagnetic valve. The electromagnetic valve is electrically connected with the roller shutter controller. The spraying pipe is arranged horizontally or obliquely and arranged on one side of the door curtain. The electromagnetic valve is arranged at one end of the spraying pipe. The spraying pipe is provided with a plurality of spraying holes towards the door curtain. The further improvements are that a spot type photoelectric smoke sensing fire detector, a spot type temperature sensing fire detector and a temperature control release device are further included and electrically connected with the roller shutter controller, and the temperature control release device is electrically connected with the shutter rolling machine. The automatic steel fireproof roller shutter can be automatically closed during fires and is not deformed and damaged in the high temperature environment.

The invention discloses a rubber material applied in a high-temperature working environment and a preparation method thereof. The rubber material is prepared from, by weight, 1-2 parts of arabic gum, 1-3 parts of zinc dialkyl dithiophosphate, 1-2 parts of an accelerant DM, 2-4 parts of epoxy tall oil acid butyl ester, 1-2 parts of hexamethyl cyclotrisiloxane, 20-30 parts of polyacrylonitrile, 10-15 parts of graphite, 2-3 parts of a softening agent, 3-4 parts of fly ash microspheres, 40-55 parts of liquid nitrile rubber, 50-60 parts of nitrile rubber, 20-25 parts of butadiene styrene rubber, 22-25 parts of coking coal powder, 3-5 parts of urea, 8-10 parts of a filling agent, 2-5 parts of aluminum hydroxide, 12-15 parts of boron nitride and 2-3 parts of thiuram. The rubber material has the good high temperature resistance, acid resistance, oil resistance and flame retardance and can be well applied to a high-temperature area.

The invention discloses a high-voltage composite umbilical cable. The high-voltage composite umbilical cable comprises an inner-layer functional unit group, an outer-layer functional unit group and an outer sheath, wherein the inner-layer function unit group comprises three inner-layer medium-voltage cable units arranged in the center and an inner-layer filling steel pipe unit, and the outer-layer function unit group comprises four outer-layer steel pipe units. The four outer-layer steel pipe units divide the periphery of the outer-layer function unit into four installation areas, wherein an outer-layer medium-voltage cable unit, two low-voltage cable units, an outer-layer filling steel pipe unit and a filling body are arranged in three of the installation areas respectively. A steel strand unit, two low-voltage cable units, an outer layer filling steel pipe unit and a filling body are arranged in the other mounting area. According to the high-voltage composite umbilical cable and the manufacturing process thereof, the umbilical cable is high in tensile strength, light in weight and convenient to manufacture.

The invention discloses modern sanda body protective clothing with attacking information sensing devices. The clothing includes a waistcoat-like clothing body, the chest of the clothing body is provided with a chest protection pad, the abdomen of the clothing body is provided with an abdomen protection pad, the two sides of the clothing body are provided with waist protection pads, the bottom of the front surface of the clothing body is provided with a downward protruding arc-shaped jockstrap, a jockstrap protection pad is arranged on the arc-shaped jockstrap, and the chest protection pad, the abdomen protection pad and the waist protection pads are all internally provided with the attacking information sensing devices. The clothing is simple in structure, can effectively and specifically protect each part of the body, is not easy to deform or damage, has long service life and can accurately calculate scores.

The invention relates to the technical field of protective equipment, and discloses a protective mask for observing heat treatment. The protective mask comprises a protective mask body, a face screenis fixedly connected to the front end of the protective mask body, a connecting body is fixedly connected to one end of the face screen, a head protecting cover is fixedly connected to one end of theconnecting body, a cushion layer is fixedly connected to the inner wall of the head protecting cover, distance adjusting valves are fixedly connected to the middle of the bottom end of the head protecting cover through a distance adjusting shaft, an adjusting block is fixedly connected to the inner wall of each distance adjusting valve, and the distance adjusting valves are fixedly connected to the two ends of the connecting body through the adjusting blocks. According to the protective mask for observing heat treatment, by arranging the face screen, the eyes and the face of a user can be prevented from being radiated and burnt, the face screen can be worn at high temperature, and harmful gas and deformation damage can not be generated; and by arranging an eye patch device, watching mirrors and telescopic loop bars, the telescopic loop bars can be adjusted to drive the watching mirrors to move, the pupil distance suitable for the user can be adjusted, and the wearing comfortableness isimproved.

The invention discloses a switch cabinet mechanical interlocking matched set, which comprises a program lock and an interlocking piece. The program lock and the interlocking piece are arranged in a cabinet body and fixedly connected with each other; the cabinet body is provided with a breaker, a breaker chassis truck is arranged below the breaker and provided with a keyed end; the interlocking piece is movably connected with the program lock through a program lock pin; the interlocking piece comprises a linkage part, a rotating main shaft and a stop part which are mutually connected; the linkage part is movably connected with the program lock through the program locking pin; the linkage part comprises upper and lower linkage plates and a main shaft linkage blade; the upper and lower linkage plates comprise a plate bottom side, a linkage plate side and a fixed plate side which are vertical to one another; the stop part comprises a main shaft driving block, a push plate and a stopping pad block; the push plate comprises a wedged plate and a push rod; and the stopping pad block is provided with a thickening pad block. The switch cabinet mechanical interlocking matched set has the advantages of high reliability, high replaceability, simple structure, convenient operation and long service life.

The invention relates to the field of wood bending equipment and in particular to a wood bending machine preventing wood deformation. The wood bending machine includes a rack. The top of the rack is provided with a hydraulic cylinder and the bottom of the rack is provided with a mould. The rack is provided with a loaded plate deformed under stress, a vertical supporting rod and a clamping elementused for clamping wood and deformed under stress from top to bottom. The loaded plate is fixed on the rack horizontally and is located below the hydraulic cylinder. The lower surface of the loaded plate is fixedly connected with the upper end of the supporting rod and the lower end of the supporting rod is connected with the clamping element in a detachable mode. The two sides of the supporting rod are fixedly provided with vertical gear strips symmetrically and the rack of the two sides of the supporting rod is connected with gear wheels in a rotation mode separately. Each gear wheel meshes with the gear strip in the same side with the corresponding gear wheel and both ends of the loaded plate are all connected with steel tendons. The steel tendons are fixed on the end surface of the gearwheels in the same side with the steel tendons too and the places for fixing are far away from the gear strips in the same side with the steel tendons at the same time. According to the technical scheme, stamping force on the wood can be buffered and the fact that the wood is deformed and damaged due to the high stamping force is avoided.

The invention relates to the field of wood bending equipment, in particular to a wood bending machine. The wood bending machine comprises a machine frame. The top of the machine frame is provided witha hydraulic cylinder. The hydraulic cylinder comprises a vertical-downward hydraulic cylinder output shaft. The lower part of the machine frame is provided with a mold. The curved surface of the moldfaces downwards and forms a wood bending channel with the bottom of the machine frame. Vertical racks are arranged symmetrically and fixedly on the two sides of the hydraulic cylinder output shaft. The machine frame on the two sides of the hydraulic cylinder output shaft is rotationally connected with gears correspondingly. Each gear is engaged with the corresponding rack on the same side. Each gear end face is fixedly connected with a wire bundle which is tightened when the gear rotates toward the corresponding rack. The lower end of each wire bundle is fixed to one end of same side wood. Wire bundle fixing sleeves are arranged symmetrically and fixedly on the machine frame between the mold and the gears. The upper ends of the wire bundles penetrate through the wire bundle fixing sleeves. By using the technical scheme, the two ends of the wood are pulled by the wire bundles, so that the two ends of the wood fails to being bent due to the lack of force, and the wood is saved.

The invention provides an integral type anchor rod geocell. The integral type anchor rod geocell comprises geocell bodies, cylinders and anchor rods. Each geocell of the geocell bodies is a rhombus-shaped geocell, the cylinders are arranged at each joint position of each rhombus-shaped geocell, the cylinders are hinged to the two ends of each geocell piece on the four faces of each rhombus-shaped geocell, and each cylinder is hinged to four geocell pieces; the cylinders are hollow sleeves, and four rows of fixing holes formed in the axial direction are symmetrically formed in the cylinder wall of the outer side of the cylinder; a plurality of vertically arranged connecting holes corresponding to the fixing holes are formed in the side edge of each geocell on the four sides of the rhombus-shaped geocell; circular ring-shaped connecting rings with reserved notches correspondingly penetrate through the connecting holes and are welded in the fixing holes, and the geocells are hinged with the sleeves through the connecting rings; the upper ends of the cylinders are not lower than the upper ends of the geocells, and the lower ends of the cylinders are not higher than the lower ends of the geocells; and the multiple anchor rods are correspondingly inserted into the cylinders and then are inserted into the slope to be fixed. The technical problems that the connecting strength of the connecting structure of the geocell and the anchor rods and the connecting strength of the geocell joints are insufficient, and the geocell deforms and is damaged are solved.

The invention belongs to the technical field of aircraft blade clamps, and particularly relates to a blade clamping device. The blade clamping device comprises a base, a screw rod, clamping blocks, Y-shaped chucks and an ejector rod assembly. The screw rod comprises a polished rod section and two threaded sections arranged at the two ends of the polished rod section correspondingly, the polished rod section and the two threaded sections are correspondingly arranged in a mounting groove of the base, and the polished rod section is clamped in the mounting groove through a positioning block, so that the screw rod can only rotate in the mounting groove; threaded holes are formed in the bottom ends of the clamping blocks, positioning grooves are formed in the top ends of the clamping blocks, and the two clamping blocks are oppositely arranged on the two threaded sections through the threaded holes in the bottom ends correspondingly; the two Y-shaped chucks are separately mounted in the positioning grooves of the corresponding clamping blocks; and a positioning seat of the ejector rod assembly is fixed to the base, a supporting rod is mounted on the positioning seat, the supporting rod is sleeved with a movable block in a sliding mode, and after the position of the movable block is adjusted, an ejector rod and the supporting rod are fixed through an adjusting nail. According to the blade clamping device, the non-working face of a blade is used for positioning, and data acquisition of the whole working face can be achieved.

The invention relates to a two-way pipe joint and a two-way pipe joint assembly. The two-way pipe joint assembly comprises the two-way pipe joint and fastening nuts in threaded connection with the two-way pipe joint. At least one connecting sleeve and connecting threads are arranged on a pipe joint body, wherein the connecting sleeves are used for being connected with a connecting pipe in a sleeving manner, and the connecting threads correspond to the connecting sleeves and are used for being connected with the corresponding fastening nuts. The fastening nuts are in threaded connection with the pipe joint body. At least one elastic barb used for achieving elastic deformation when squeezed by the connecting pipe is arranged on the peripheral face of each connecting sleeve in the circumferential direction, the head end of each elastic barb is connected with the corresponding connecting sleeve, and the tail ends of the elastic barbs are inclined towards end openings far away from the sleeves. According to the two-way pipe joint and the two-way pipe joint assembly, the damage of compressing force to a connecting hose can be reduced when the fastening nuts are screwed down, the service life of the connecting pipe is prolonged, and the fastening nuts can be mounted conveniently.

The invention discloses a pressure release valve for dust removers, which aims to solve the problems that a shell of the prior dust remover sinks down, deforms and the like. The pressure release valve consists of a valve plate (1), a guide rod (3), a valve body (2), a steel wire rope (4), a pulley (5), a bracket (6) and a counterweight block (7), wherein the valve body (2) is arranged on a dust remover shell (8); one end of the guide rod (3) passes through the valve body (2) and is connected with the valve plate (1) arranged in the shell (8); and the other end of the guide rod (3) is connected with the counterweight block (7) through the steel wire rope (4). Therefore, the pressure release valve has the advantages that the valve is simple to machine, and can effectively prevent the dust remover shell from sinking down, deforming and the like.

The invention relates to the field of wood bending equipment and in particular to a wood bending machine preventing wood deformation. The wood bending machine includes a rack. The top of the rack is provided with a hydraulic cylinder and the bottom of the rack is provided with a mould. The rack is provided with a loaded plate deformed under stress, a vertical supporting rod and a clamping elementused for clamping wood and deformed under stress from top to bottom. The loaded plate is fixed on the rack horizontally and is located below the hydraulic cylinder. The lower surface of the loaded plate is fixedly connected with the upper end of the supporting rod and the lower end of the supporting rod is connected with the clamping element in a detachable mode. The two sides of the supporting rod are fixedly provided with vertical gear strips symmetrically and the rack of the two sides of the supporting rod is connected with gear wheels in a rotation mode separately. Each gear wheel meshes with the gear strip in the same side with the corresponding gear wheel and both ends of the loaded plate are all connected with steel tendons. The steel tendons are fixed on the end surface of the gearwheels in the same side with the steel tendons too and the places for fixing are far away from the gear strips in the same side with the steel tendons at the same time. According to the technical scheme, stamping force on the wood can be buffered and the fact that the wood is deformed and damaged due to the high stamping force is avoided.

The invention discloses an aluminum extruding machine head nut. The aluminum extruding machine head nut comprises a body (1). The body (1) is internally provided with a rotating part (2). A connectingpart (3) is connected outside the body (1). The connecting part (3) comprises bosses (31) and grooves (32). The bosses (31) and the grooves (32) are alternately arranged sequentially. A thread angle(alpha) of 20-50 degrees is formed between each boss (31) and the corresponding adjacent (32). The depth (A) of each groove is 10-20mm. According to the aluminum extruding machine head nut, through the bosses (31) and the grooves (32) with certain parameters being sequentially and alternately arranged on the connecting part (3) creatively, deformation and damage of the aluminum extruding machine head nut do not occur in high temperature and high pressure running.

The invention discloses a wafer fork, a silicon wafer transfer device and method, and belongs to the technical field of semiconductors, wherein the wafer fork comprises a wafer fork body; the wafer fork body is provided with an adsorption surface for adsorbing a silicon wafer, the adsorption surface is provided with a plurality of gas outlet holes, and gas ejected from the plurality of gas outlet holes inclines towards the outer side of the adsorption surface. As the spraying direction of the gas is inclined, when a silicon wafer in a certain groove is adsorbed, the silicon wafer in an adjacent groove is not deformed and damaged. The silicon wafer transfer device comprises the wafer fork, a workbench and a shifting mechanism, a negative pressure adsorption area is formed on the workbench, and the shifting mechanism is used for driving the wafer fork to move. The silicon wafer transfer method comprises the steps that the gas outlet inclinedly sprays gas to form the positive pressure adsorption area, and the negative pressure adsorption area is matched with the positive pressure adsorption area, so that transfer positioning of the silicon wafer is accurate, the silicon wafer does not shift, and the conveying efficiency and the product precision are improved.

The invention provides an oil pump one-way valve which comprises a shell, a valve body, a lining, a steel ball and a spring, the valve body, the lining, the steel ball and the spring are arranged in the shell, and the spring is supported between the valve body and the steel ball and used for tightly pressing the steel ball at the opening end of the lining; and chamfers of the contact faces of thelining and the steel ball are fillets, and the surface of the steel ball is covered with a wrapping layer made of carbon fiber material or oil-resistant plastic material. According to the oil pump one-way valve, a layer of carbon fiber or other materials with good oil-resistant plasticity and a reasonable collision surface structure are additionally arranged on the surface of the steel ball, deformation damage cannot be generated after multiple times of collision, and the sealing effect cannot be affected. The problem that the sealing effect is poor due to the fact that the oil pump for an unmanned aerial vehicle is frequently opened is solved, and the service life of the one-way valve in the using process is prolonged through reasonable material selection and structural design.

The invention discloses a high-voltage composite umbilical cord, which comprises an inner layer functional unit group, an outer layer functional unit group and an outer sheath, and the inner layer functional unit group includes three inner layer medium voltage cable units arranged at the center And the inner layer is filled with steel pipe units, the outer layer functional unit group includes four outer layer steel pipe units, the four outer layer steel pipe units divide the outer periphery of the outer layer functional unit into four installation areas, and three installation areas are respectively equipped with The outer medium voltage cable unit, two low voltage cable units, the outer filled steel pipe unit and the filling body, and the steel strand unit, the two low voltage cable units, the outer filling steel pipe unit and the filling body in another installation area. The invention provides a high-voltage composite umbilical cord and its manufacturing process. The umbilical cord has high tensile strength, light weight and is convenient to manufacture.

The invention discloses an electric router shield assembling structure which comprises a machine shell, a shield and a bottom plate, an opening part extending to the bottom of the machine shell is formed in the side wall of the machine shell, and the shield is assembled to the opening part; clamping assemblies matched with each other and pre-assembly positioning assemblies matched with each other are arranged on the machine shell and the protective cover, when the protective cover reaches the pre-assembly position in the first direction, the pre-assembly positioning assemblies are matched with each other to pre-assemble and position the protective cover, and a displacement gap allowing the protective cover to move to the assembly position from the pre-assembly position in the second direction is formed between the protective cover and the machine shell. The bottom plate is supported below the machine shell and the protective cover, in the process that the bottom plate is assembled in place, the bottom plate can provide thrust in the second direction for the protective cover, the protective cover reaches the assembling position under the action of the thrust, matching is achieved through the clamping assembly, matching is relieved through the pre-assembling positioning assembly, and the displacement gap disappears. By optimizing the structure of the machine shell and the shield and the shield assembling mode, the shield assembling efficiency and the shield assembling quality are improved.