424 results about "Filament winding" patented technology

The invention discloses an IV-type hydrogen cylinder stress monitoring system, a signal processing method thereof and an IV-type hydrogen cylinder, and relates to the technical field of manufacturing of high-pressure hydrogen storage equipment. The carbon fiber winding layer stress monitoring structure and the liner stress monitoring structure are respectively arranged in a strain generation area of a carbon fiber winding layer and a strain generation area of the outer surface of a plastic liner in the IV-type hydrogen cylinder, so that the surface stress of the liner of the gas cylinder and the stress between carbon fiber winding layers can be dynamically monitored in real time; therefore, the IV-type hydrogen cylinder has the function of dynamically monitoring the stress between the carbon fiber winding layers and the stress of the inner container in real time. According to the signal processing method of the IV-type hydrogen cylinder stress monitoring system, high-frequency noise signals can be effectively filtered, low and medium-frequency signals can be reserved, and the surface stress of a carbon fiber winding layer and a plastic inner container can be accurately measured. The IV-type hydrogen cylinder is provided with the IV-type hydrogen cylinder stress monitoring system and has the function of dynamically monitoring the stress between carbon fiber winding layers and the stress of an inner container in real time.

The invention belongs to the technical field of fiber winding, and aims to solve the problems of serious fiber crossing phenomenon and low winding efficiency in the traditional winding technology. The multi-beam carbon fiber winding automatic control method based on multi-axis synchronization comprises the steps that mathematical characterization of a core model is constructed, and a spiral winding track of a wire nozzle is solved based on the mathematical characterization of the core model; the spiral winding track is converted into a cam synchronous movement curve associated with a virtual shaft, the virtual shaft is a hypothetical shaft and serves as a main shaft in the spiral winding process, and the virtual shaft is used for dynamically coordinating movement of a core mold rotating shaft, a core mold walking shaft, a wire nozzle feeding shaft and a wire nozzle rotating shaft through a cam synchronous mechanism; performing parameter configuration and procedure configuration of winding of multiple bundles of carbon fibers; equipment in the multi-beam carbon fiber winding device is reset, and the multi-beam carbon fibers are automatically wound based on the procedure configuration sequence. Efficient winding operation is achieved through a cam synchronization mechanism, and the winding requirements of different specifications can be met.

The invention relates to the technical field of composite pipelines, in particular to a continuous fiber winding reinforced polyethylene composite pipe and a preparation method of the continuous fiber winding reinforced polyethylene composite pipe. The fiber reinforced layer is wound on the inner-layer polyethylene pipe, the outer polyethylene protective layer is wound outside the fiber reinforced layer, and the outer reinforced pipe is wound on the surface of the outer polyethylene protective layer. The continuous fiber winding reinforced polyethylene composite pipe prepared by the invention has excellent flexibility, the production process is simple, the production efficiency is high, and all production procedures of multi-layer compounding can be realized through one station.

The invention discloses a high-strength photovoltaic module structure and a preparation method thereof.The high-strength photovoltaic module structure comprises a core structure used for improving the elasticity modulus, fiber reinforcing layers are arranged on the end faces of the two sides of the core structure, the fiber reinforcing layers arranged on the end faces of the two sides are connected at the side edge parts, and fiber winding surrounding parts are formed on the side edges of the core structure; all the side faces of the periphery of the core structure form full-connection type fiber binding reinforced fixing. Fiber winding is carried out on the side edge of the honeycomb structure photovoltaic module, fibers in a lower panel of the photovoltaic module are connected with fibers in an upper panel of the photovoltaic module, the bending rigidity of the photovoltaic module can be further enhanced, and the fibers in the lower panel of the photovoltaic module and the fibers in the upper panel of the photovoltaic module are connected in the mode that the fibers are wound on the side edge. The bending rigidity of the photovoltaic module is effectively enhanced, and the problem that the improvement of the bending rigidity is limited due to weak side edges of the module in the prior art is solved.

The utility model discloses a mold for manufacturing a composite material grating cone by a fiber winding process, belongs to the field of composite material molds, and solves the manufacturing problem of the existing grating cone. The mould comprises a conical mould main body, an upper steering nail ring, a lower steering nail ring, an upper flange, a lower flange, a rotating shaft and a silica gel soft film, wherein the rotating shaft sequentially penetrates through the upper flange, the conical mould main body and the lower flange; the conical mold body, the steering nail ring, the upper flange and the lower flange are coaxially matched, the upper steering nail ring is connected to the conical mold body through the upper flange, the lower steering nail ring is directly connected with the conical mold body, the lower flange is directly connected with the conical mold body, and the silica gel mold is formed by splicing one or more plane soft molds. The plurality of blades are circumferentially distributed on the outer surface of the conical mold main body; orthogonal grating grooves are formed in the surface of the silica gel mold, and the grating grooves are composed of grating strips in the axial direction and the circumferential direction. The mold is mainly used for manufacturing conical structures by fibers or prepreg tapes.

The invention discloses a fiber winding composite material pressure vessel defect evaluation method based on ultrasonic detection, and particularly relates to the technical field of defect evaluation, which comprises the following steps: simplifying a fiber winding structure into a net structure based on attribute difference and interaction relationship between fiber and resin; modeling is conducted by considering the resin filling position and the interaction relation between resin and fibers, the ultrasonic frequency, the pulse width, the excitation point position and the receiving point position transmitted by equipment are calibrated on the basis of a simulation model and applied to an actual container, a phased array is used for transmitting a pulse signal at a preset excitation point, and the signal is received at a preset receiving point; based on different incident angles of the pulse signals, ultrasonic echo data fully covered at the receiving point are collected, an incident angle evaluation model is constructed, incident angle evaluation coefficients at different ultrasonic incident angles at the excitation point are generated, and the optimal incident angle at the excitation point is obtained. The surface defect identification method is beneficial to surface defect identification, and the defect detection capability is enhanced.

The utility model belongs to the technical field of pipeline materials, and particularly relates to a composite pipeline material. The utility model provides a composite pipeline material. The composite pipeline material comprises an inner surface layer, an inner fiber cloth reinforcing layer, an inner fiber winding layer, a fiber reinforcing structure layer, an outer fiber cloth reinforcing layer, an outer fiber winding layer and an outer protection layer which are sequentially stacked from inside to outside. The inner surface layer is made of epoxy resin; fibers in the inner fiber cloth reinforcing layer, the inner fiber winding layer, the fiber reinforcing structure layer, the outer fiber cloth reinforcing layer and the outer fiber winding layer are basalt fibers; and the outer protection layer is made of epoxy resin. According to the utility model, the epoxy resin and the basalt fiber have good electrical insulation performance and shielding performance, so that the pipeline material has a good stray current resisting effect.

A method, device, medium, and product for pattern design in filament winding is provided. The method includes: acquiring parameter data of a target elbow pipe mandrel; constructing a mandrel geometric model according to the geometric dimension parameters; the mandrel geometric model includes a geodesic mathematical model of a ring segment and a non-geodesic mathematical model of a cylindrical segment; the ring segment is an elliptical section annular elbow pipe; the cylindrical segment is an elliptical section pipe; determining number of yarns of the ring segment according to the geodesic mathematical model and set parameter data, and determining geodesic trajectory information of the ring segment; determining non-geodesic trajectory information of the cylindrical segment according to the non-geodesic mathematical model and a set slip coefficient; determining a filament winding pattern according to the geodesic trajectory information of the ring segment and the non-geodesic trajectory information of the cylindrical segment.

The invention relates to a nanofiltration membrane element and a production process thereof, and relates to the technical field of membrane separation, the nanofiltration membrane element comprises a central pipe, a membrane unit piece and a fiber winding layer, the central pipe is provided with a plurality of water inlet holes, the membrane unit piece is wound on the outer side of the central pipe, the fiber winding layer is wound on the outer side of the membrane unit piece, and the membrane unit piece comprises a membrane, water inlet mesh cloth and runner cloth; the runner cloth is divided into two cloth layers in the thickness direction of the runner cloth, and each cloth layer is provided with a filtering area, a glue line area and a side line area. A plurality of supporting lines are clamped between the two cloth layers, the supporting lines are located in the filtering area, all the supporting lines are arranged in the axial direction of the center pipe, the supporting lines extend in the radial direction of the center pipe when the cloth layers are in the spreading state, and one ends of the supporting lines are bonded to the positions, away from the connecting edges, of the glue line area; and a gap between the two cloth layers is communicated with the water inlet hole. The compressive strength of the runner cloth can be improved, so that the water passing amount is increased.

The invention discloses an automatic laying and forming process for a reinforcing ring of a carbon fiber fully-wound gas cylinder end socket, and relates to the technical field of carbon fiber wound gas cylinders. Technological parameters are simulated and optimized; the laying line type is imported into software to plan the motion track of the robot; carbon fiber prepreg is adopted, single-layer prepreg laying is conducted between every two spiral layers of the gas cylinder according to the optimal process parameters, and the laminating state of the prepreg is monitored in real time. Full-automatic precise laying can be achieved, and the production efficiency and consistency are improved; the material utilization rate is improved; the manufacturing cost is reduced; the laying wrinkle defect is eliminated, and the gas cylinder bearing safety is improved; process parameters are quantified and optimized, and the performance of the carbon fibers is fully released.

An assembly is configured for use in a system for forming filament windings on a vessel having a circumference and a length. The assembly includes an endless belt and first and second rollers. The endless belt is configured to wrap partially around the circumference of the vessel to contact and impart pressure on a filament winding disposed on an outside surface of the vessel. The endless belt moves around the first and second rollers. A space is disposed between the first and second rollers to allow a filament wind eye of the system to move in a reciprocal motion along the length of the vessel. A method of using a machine for forming filament windings on a vessel having a circumference and a length is also described.

The invention relates to the field of automatic processing of fiber-wound bearings, and discloses automatic processing equipment for fiber-wound bearings, which comprises a processing table, a fixing frame is fixedly mounted on one side of the top end of the processing table, and an unwinding roller is movably mounted on one side of the middle part of the fixing frame; two linear guide rails are fixedly mounted on the other side of the top end of the machining table, and the tops of the linear guide rails are movably mounted on the two sides of the bottom end of the transverse frame correspondingly. A first linear motion module is fixedly installed at the position, close to the lower portion of the transverse frame, of the top end of the machining table, the driving end of the first linear motion module is fixedly installed in the middle of the bottom end of the transverse frame, and a second tension control mechanism is arranged on the side, close to the fixing frame, of the top end of the transverse frame. Through innovative tension control, dynamic pressing and automatic linkage design, the quality stability, efficiency and adaptability of fiber winding processing are comprehensively improved, and reliable technical support is provided for batch production of high-performance fiber winding bearings.

The invention provides a mechanical tension-controllable fiber unwinding device and a fiber winding method, and belongs to the technical field of composite material molding.The mechanical tension-controllable fiber unwinding device comprises a support, a clamping mechanism, a spiral extension spring, a constant force mechanism and a yarn guide mechanism; the mechanical tension-controllable fiber unwinding device has the advantages of an electric control type tension regulation and control mode and a mechanical tension regulation and control mode, is simple in structure and high in sensitivity, can carry out real-time regulation and control according to the tension of fibers, flexibly sets the tension and can realize layer-by-layer decrease of the tension, and two fiber winding methods are provided based on the mechanical tension-controllable fiber unwinding device, so that the mechanical tension-controllable fiber unwinding device is suitable for large-scale popularization and application. The two winding methods are respectively a constant-tension fiber winding method and a tension-decreasing fiber winding method.

The invention relates to the technical field of winding control, in particular to a control method and a control system for a dry winding carbon fiber roller making process, and the method comprises the steps: obtaining the characteristics of a prepreg liquid, the characteristics of a carbon fiber material and the thickness of a prepreg tape, and determining initial control parameters based on the characteristics of the prepreg liquid, the characteristics of the carbon fiber material and the thickness of the prepreg tape; the initial control parameters comprise initial heating temperature and initial tension; performing carbon fiber winding on the roller core mold based on the initial control parameters, and acquiring a winding surface image of the roller core mold in real time; when the winding surface image contains the preset defect feature, identifying a defect parameter corresponding to the preset defect feature from the winding surface image; and adjusting the initial control parameters based on the defect parameters to obtain optimized control parameters, and executing a carbon fiber winding process based on the optimized control parameters. The product quality of the carbon fiber composite material product can be conveniently improved.

This application belongs to the technical field of winding devices and discloses a polyester filament winding device, including a base. Two symmetrical support plates are fixedly mounted on the upper surface of the base. A first motor is fixedly mounted on the side wall of one of the support plates. A rotating shaft is installed at the end of the output shaft of the first motor, and a winding roller is sleeved on the outer wall of the rotating shaft. A round rod is fixedly mounted on the adjacent side walls of the two support plates. A slider is sleeved on the outer wall of the round rod, and a perforated part is mounted on the slider. A control device for controlling the back-and-forth sliding of the slider is provided on the support plate. The control device includes a control component and a drive component. This application has the effect of reducing the limitations of the device.

This utility model discloses a resin-impregnated fiber capacitive transformer bushing, belonging to the technical field of transformer accessories. It includes a core; a resin-impregnated fiber winding layer wound around the core; a creeper skirt fitted onto the resin-impregnated fiber winding layer; a first flange assembly abutting one end of the creeper skirt; the first flange assembly includes a first flange, a rotating disk, and a second flange; the first flange has a first hole, and the rotating disk has a second hole. The rotating disk can rotate between a first angle and a second angle. At the first angle, the first hole and the second hole are connected; at the second angle, the first hole and the second hole are offset; the second flange assembly abutting the other end of the creeper skirt. When the rotating disk of this utility model rotates to the first angle, the first hole and the second hole are connected, allowing for convenient and intuitive detection of the performance and condition of the resin-impregnated fiber winding layer. This enables accurate assessment of potential damage or fatigue in the transformer bushing, preventing accidents and ensuring production safety.

The invention relates to the technical field of solid rocket engine combustion chamber composite material shells, and provides a large-aperture-ratio fiber winding composite material shell structure which comprises a front sealing head, a barrel section, a front skirt and a rear skirt assembly. The front sealing head is connected with one end of the cylinder section, the front skirt sleeve is arranged on the front sealing head and extends to the outside of one end of the cylinder section, and the other end of the cylinder section is connected with the rear skirt assembly. A traditional end socket is omitted, stable winding forming of the large-aperture-ratio composite material winding shell is achieved, and the requirement that the composite material shell bears the high internal pressure load effect is met. According to the structure, a traditional composite shell forming wire hanging tool and a combustion chamber shell skirt structure are combined, the structure and the function are integrated, the problem of fiber wire sliding during winding of a large-aperture-ratio structure is solved, the manufacturability of winding forming of the large-aperture-ratio composite shell is greatly improved, and the internal pressure bearing capacity of the large-opening composite shell is improved.

The invention provides a high-speed motor carbon fiber rotor structure and a winding process, and belongs to the field of high-speed motor carbon fiber rotor structures. The problems that an air-gap magnetic field formed by an existing surface-mounted permanent magnet is in flat-topped wave distribution and contains more higher harmonics, so that eddy-current loss in a motor is increased; and the local stress on the edge of the block-shaped permanent magnet is higher than that on other positions, so that the permanent magnet is easy to damage. The high-speed rotor comprises an annular permanent magnet and a high-speed rotor shaft, the annular permanent magnet is circumferentially arranged on the periphery of the high-speed rotor shaft, and a plurality of carbon fiber filament winding layers are wound on the periphery of the annular permanent magnet. The carbon fiber filament winding structure has good heat dissipation performance, and the problems that heat dissipation of the permanent magnet is affected by a non-metal sheath and the permanent magnet is overheated and demagnetized due to eddy current loss of a metal sheath are solved. The tension of the carbon fibers wound on the outer surface of the annular permanent magnet is gradually reduced, so that the tension of the carbon fibers is opposite to the change ratio trend of the winding thickness, and the tension in the whole winding layer is uniform.

The invention relates to a continuous fiber reinforced thermoplastic pressure pipeline and a preparation method thereof, the continuous fiber reinforced thermoplastic pressure pipeline is provided with a core pipe inner layer, a core pipe outer layer, a continuous fiber winding middle layer and a maleic anhydride grafting modification interface layer, the continuous fiber winding middle layer is wound on the surface of the core pipe inner layer, and the maleic anhydride grafting modification interface layer is wound on the surface of the core pipe outer layer. The maleic anhydride grafting modification interface is a transition layer between the continuous fiber winding middle layer and the outer layer of the core pipe, and the continuous fiber winding middle layer comprises continuous fibers and a resin film. The invention has the following beneficial effects: 1, a special prepreg process is adopted, a maleic anhydride grafting interface layer is added, and gradient heating is carried out, so that the problem of fusion and combination of thermoplastic materials is solved, the interlaminar shear strength is 35.1-42.0 MPa, and the internal pressure resistance of the pipeline reaches 15.2-20.1 MPa, which is far higher than that of a traditional winding pipeline by 50-100%; 2, the strength and the cost are balanced through the hybrid design of the continuous fiber winding middle layer, and the cost is reduced by 30%-40% compared with that of a full carbon fiber reinforced pipeline;

The utility model discloses a high -efficient fiber crushing cutting device in the technical field of fiber processing equipment, including the box, the box includes horizontal top plate, and the downside of top plate is vertically provided with four side plate bodies that enclose rectangle, and is equipped with screen mesh bottom plate with each side plate body bottom corresponding, and the screen mesh bottom plate is full of the opening of several sieve holes, and the top plate is vertically equipped with the feeding cylinder, and the feeding cylinder includes four cylinder side plates that enclose rectangle, and the upper portion of each cylinder side plate is obliquely equipped with the feeding side plate, and each feeding side plate encloses the feeding port, the inside rotatable of box is equipped with two parallel and equal height's rotation axis, and the rotation axis is sequentially arranged with several cutting assemblies along the length direction, and the bottom of box is equipped with several support frame. The utility model can solve the problem of fiber winding when cutting, improve cutting efficiency, prolong the life of cutting blade, the high accuracy cutting of fiber, and the blade life is promoted to 180 days above.

The invention discloses an anti-explosion hydrogen storage bottle under a high-speed impact condition. The anti-explosion hydrogen storage bottle comprises an aluminum alloy liner, a carbon fiber winding layer and a polyurea elastomer protective layer. The carbon fiber winding layer is fixedly connected to the aluminum alloy inner container in a winding mode and located on the outer side of the aluminum inner container, and a polyurea elastomer protection layer is arranged on the outer layer of the carbon fiber winding layer and tightly attached to the carbon fiber winding layer. The aluminum alloy inner container is wound and wrapped through the carbon fiber winding layer, the overall strength of the hydrogen storage cylinder is improved, good impact resistance and explosion-proof performance are provided through the adoption of the polyurea elastomer protection layer, and the safety of the hydrogen storage cylinder under high-speed impact of foreign objects is ensured through cooperative work of the polyurea elastomer protection layer and the internal carbon fiber winding layer.

This utility model belongs to the field of winding equipment, specifically relating to a winding mechanism for a large-coil plastic filament winding machine. It includes a winding frame, a winding roller at the top of the winding frame, and limit plates on both the front and rear sides of the top of the winding roller. The left side of the limit plate is hinged to the left side of the winding frame, and a locking mechanism is movably connected to both the front and rear sides of the winding frame. This utility model, by adding rotating locking plates, locking blocks, and electric cylinders to the limit plates and winding frame, enables automatic locking control of the limit plates, avoiding the need for manual bolt fixing and improving the assembly and disassembly efficiency of the limit plates and winding frame. By adding limit plates and other structures to the winding frame, users can easily control the fixing components of the winding roller, preventing the top limiting components of the winding roller from becoming overly complex and requiring the installation and disassembly of numerous parts each time, thus increasing the ease of removing the winding roller.

The present invention belongs to the field of fiber winding technology, and aims to solve the problems of serious fiber crossing and low winding efficiency in traditional winding technology. A method and system for automatic control of multi-bundle carbon fiber winding based on multi-axis synchronization is provided, including: constructing a mathematical representation of the core mold, solving the spiral winding trajectory of the wire nozzle based on the mathematical representation of the core mold; converting the spiral winding trajectory into a cam synchronization motion curve associated with a virtual axis, the virtual axis is a hypothetical axis, and serves as the main axis in the spiral winding process. The virtual axis is used to dynamically coordinate the movement of the core mold rotating axis, the core mold walking axis, the wire nozzle feed axis and the wire nozzle rotating axis through the cam synchronization mechanism; performing parameter configuration and process configuration of multi-bundle carbon fiber winding; returning the equipment in the multi-bundle carbon fiber winding device to its original position, and automatically winding multiple bundles of carbon fibers based on the order of the process configuration. The present invention achieves efficient winding operations through the cam synchronization mechanism, which can meet the winding requirements of different specifications.

The present application relates to the technical field of composite pipe, in particular to a continuous fiber winding reinforced polyethylene composite pipe and a preparation method thereof, wherein the continuous fiber winding reinforced polyethylene composite pipe is composed of an inner polyethylene pipe, a fiber reinforced layer wound on the inner polyethylene pipe, an outer polyethylene protective layer wound outside the fiber reinforced layer, and an outer reinforced pipe wound on the surface of the outer polyethylene protective layer. The continuous fiber winding reinforced polyethylene composite pipe prepared by the present application has excellent flexibility, simple production process, high production efficiency, and can realize all production processes of multi-layer composite through one station.

The utility model relates to the technical field of winding devices, and discloses a winding device for silicon dioxide aerogel fibers, which solves the problems that a winding wheel of an existing silicon dioxide aerogel fiber winding device cannot be quickly replaced after winding is saturated, so that the production continuity is influenced, and the working efficiency is reduced. A supporting frame is fixedly installed at the top of the base, a driving motor is fixedly installed on one side of the supporting frame through a connecting frame, a lower chain wheel is fixedly installed at the output end of the driving motor, a positioning frame is fixedly installed on the other side of the base, and one side of the lower chain wheel is rotationally connected with the positioning frame; a chain is meshed between the upper chain wheel and the lower chain wheel; a rotating shaft is fixedly mounted on one side of the upper chain wheel; the winding wheel of the silicon dioxide aerogel fiber winding device can be quickly replaced after winding saturation, so that the production continuity is guaranteed, and the working efficiency is improved.

The invention discloses a multi-bundle fiber winding tail end executing device and a multi-bundle fiber winding device, and relates to the field of fiber winding equipment, the multi-bundle fiber winding tail end executing device comprises an annular supporting device, a plurality of first yarn nozzle guide mechanisms, a plurality of second yarn nozzle guide mechanisms, a plurality of first driving devices and a plurality of second driving devices, one end of each first wire nozzle wire guide mechanism is connected with the supporting device, and the other end of each first wire nozzle wire guide mechanism extends in the direction close to the center line of the supporting device. Each first driving device can drive the corresponding first wire nozzle wire guide mechanism to move in the direction close to or away from the center line of the supporting device and / or drive the corresponding first wire nozzle wire guide mechanism to rotate around the center line of the corresponding first wire nozzle wire guide mechanism. The second driving device is arranged on the supporting device and can drive the second wire nozzle wire guiding mechanism to rotate around the center line of the supporting device. Winding of special-shaped bodies can be achieved; the working efficiency is improved, and the stress concentration phenomenon in finished products can be reduced.

The invention relates to a composite material pressure vessel forming method which comprises the following steps: rigidly connecting a front joint and a rear joint to two ends of a positioning shaft to form a support frame body; the supporting frame body is vertically fixed, the 3D printer is driven to extrude fiber reinforced thermoplastic composite wires in the circumferential direction of the positioning shaft, and a printing layer is formed between the front connector and the rear connector; the supporting frame body with the printing layer is horizontally installed on a horizontal rotating support, a positioning shaft is driven to rotate, prepreg fibers are wound around the outer surface of the printing layer, and a fiber winding layer is formed; and after the front / rear skirt is mounted, curing to form an integral structure, and finally removing the horizontal rotating bracket and the positioning shaft. The printing layer is constructed through the 3D printing technology, then the prepreg fibers are wound on the outer surface of the printing layer, and the design precision, the forming efficiency and the bursting pressure of the container are guaranteed; and finally, the prepreg fibers are cured on the printing layer, the interfacial shear strength between the prepreg fibers and the printing layer is guaranteed, and demolding is not needed.

The polyamide yarn winding forming equipment comprises a first installation box and a third installation box which are oppositely arranged on the top of a base, the bottom of the first installation box is slidably connected to the top of a second installation box, and the second installation box is slidably connected with the base. The close sides of the first mounting box and the third mounting box are rotationally connected with mounting cylinders with one ends sealed, the opening ends of the mounting cylinders are connected with fixing bases, one sides of the fixing bases are connected with electric slip rings, the two fixing bases are rotationally connected into the first mounting box and the third mounting box correspondingly, and supporting columns are coaxially connected into the mounting cylinders. A second electric telescopic rod is fastened to the side, close to the supporting column, of the fixing base, a sleeve is fastened to the end of the second electric telescopic rod, the supporting column is sleeved with the tail end of the sleeve, and the electric slip ring is connected with the second electric telescopic rod through a wire. The device not only can be conveniently taken down by a worker, but also can be conveniently operated by the worker, and the practicability of the device is improved.

The invention discloses an underwater pressure-resistant shell with heterogeneous connection of a hemispherical metal end socket and a composite barrel. The underwater pressure-resistant shell comprises a metal end socket, a connecting structure and a composite material barrel, the metal end socket and the connecting structure are integrally formed and manufactured, the connecting structure is provided with an annular flange, and a plurality of bosses are arranged in the circumferential direction of the annular flange at equal intervals; the composite material barrel comprises a grid rib inner layer and an annular winding layer, the grid rib inner layer is connected with the metal end socket through a connecting structure, and the annular winding layer is arranged on the outer side of the grid rib inner layer. According to the underwater pressure-resistant shell, the thought of'division and treatment 'is adopted, the metal end socket, the grid rib inner layer and the annular winding layer bear bending, axial pressure and annular pressure respectively, and a continuous fiber winding connection method is adopted, so that stress is more uniformly distributed in fibers; and in addition, a connection mode of combining macroscopic mechanical interlocking and microcosmic interface interlocking is adopted, the overall strength and rigidity of the structure and the reliability and sealing performance of connection are improved, and meanwhile the lightweight level of the overall structure is guaranteed.