369results about How to "Solve shedding" patented technology

The invention relates to the technical field of precious metal recovery, in particular to a precious metal recovery method. Comprising the following steps: filtering wastewater containing precious metals by using a precious metal recovery composite membrane, and drying the precious metal recovery composite membrane after filtering; then filtering an acidic aqueous solution by using the dried precious metal recovery composite membrane, and then continuously filtering and cleaning by using clear water; the cleaned precious metal recovery composite membrane is put into an N, N-dimethylformamide soaking solution, then ultrasonic oscillation treatment is conducted, the composite membrane is taken out of the soaking solution, then centrifugal treatment is conducted on the soaking solution, precipitates are collected, and the precious metal particles are obtained. The precious metal is recovered by adopting a membrane filtration method, and compared with an impregnation method, a large amount of membrane cost is saved, so that the precious metal recovery cost is reduced, and the method is suitable for industrial metal recovery.

The invention discloses a structure and method for improving the assembly precision of a free space isolator in an optical module, the structure comprises a mounting seat and an optical fiber array connected to the mounting seat, one end of each optical fiber of the optical fiber array is connected with an optical fiber connector socket, the other end of each optical fiber is connected with a metal piece, a magnetic ring is coaxially embedded in the end part of the metal piece, and the magnetic ring is connected with the optical fiber connector socket. A Faraday rotation isolator is arranged in the magnetic ring, ejector pin assemblies are further arranged on the mounting base, the ejector pin assemblies and the optical fibers are coaxially arranged in a one-to-one mapping mode, each ejector pin assembly comprises an ejector pin sleeve connected to the mounting base, a spring is arranged in each ejector pin sleeve, and the ejector pin sleeves are connected to the mounting base. An ejector pin is coaxially inserted into the open end of the ejector pin sleeve, the spring is in contact with the ejector pin, and the ejector pin is in contact with the magnetic ring. According to the invention, the concentricity of the cured isolator is ensured.

The utility model provides a hot-rolled strip steel heat preservation device which comprises a power device, a supporting column, a Z-shaped plate and a heat preservation cover. The movable end of the power device is hinged to one end of the Z-shaped plate, and the middle position of the Z-shaped plate is rotationally connected with the supporting column through a rotating shaft. The heat preservation cover is installed at the other end of the Z-shaped plate, and the Z-shaped plate is driven by the power device to rotate around the rotating shaft so as to control the heat preservation cover to be opened or closed. The heat preservation cover has the advantages that the heat preservation cover can be rapidly opened or closed through the power device, the supporting base, the rotating shaft and the Z-shaped plate, the Z-shaped plate only rotates on the same plane around the rotating shaft, namely, the heat preservation cover only can move upwards or downwards and cannot move left and right, the accuracy of the position of the heat preservation cover when the heat preservation cover is closed is effectively guaranteed, and the heat preservation cover can be rapidly opened or closed. And the opening or closing efficiency of the heat preservation cover is greatly improved.

The utility model discloses a curtain wall and an installation system thereof, the curtain wall comprises a decoration panel, a heat preservation and insulation layer and a back plate which are bonded in sequence, the decoration panel is a lava plate, the heat preservation and insulation layer is a vacuum insulation plate, and the back plate is a fiber reinforced calcium silicate plate. The installation system further comprises a wall connecting piece, an adjusting piece and an angle piece. According to the curtain wall, the ultra-low heat conductivity coefficient of the vacuum heat insulation plate is utilized, and the vacuum heat insulation plate, the decoration panel and the back plate are compounded into a whole novel heat preservation and decoration integrated plate; the thickness of the vacuum insulated panel is only 1 / 5 of that of rock wool, the thickness of the curtain wall heat preservation structure is reduced, and the use area of a building is increased; in the construction process of installing a curtain wall, due to the fact that steel bars exist in a wall body, deviation possibly exists between the positions of anchor bolt holes and the paying-off position, vertical adjustment is conducted through the wall connecting piece and the wall connecting strip holes; and when the flatness of the wall body does not meet the requirement, adjustment in the horizontal direction and the left-right direction is conducted through the adjusting pieces and the corner pieces, and the installation flatness of the curtain wall is guaranteed.

The invention discloses a preparation method of a foamed thermal-insulation ceramic decorative plate in the technical field of building decorative materials. The method comprises the following steps: carrying out ball milling, spray drying, granulating and ageing on raw materials such as ceramic waste and kaolin; mixing and dispersing the aerogel-hydrogel gradient core-shell structure composite modified material and ceramic particles, and sieving to obtain composite powder; compounding sodium bicarbonate and azodicarbonamide with a foaming agent, mixing the foaming agent with the composite powder, and adding a surfactant and a dispersing agent to adjust the viscosity so as to prepare expandable ceramic slurry; the slurry is injected into a mold and coated with low-temperature glaze, and stepped heating sintering is conducted through a tunnel kiln and comprises the steps of preheating glue discharging, primary foaming, secondary sintering, gradient cooling and the like. The thermal insulation performance, the mechanical strength, the weather resistance and the decoration performance are synergistically improved, and the product is low in heat conductivity coefficient, high in compressive strength, excellent in ultraviolet aging resistance, firm in decoration layer combination and suitable for building outer walls and other scenes.

The invention provides a perovskite crystal silicon laminated cell and a preparation method, the laminated cell comprises a perovskite top cell and a crystal silicon bottom cell, an overlapping area of the two cells is a working area of the laminated cell, and a non-overlapping area of the two cells is a non-working area of the laminated cell; and a top electrode welding strip and a bottom electrode welding strip are arranged at the bottom of the crystalline silicon bottom battery, correspond to the non-working area and are respectively connected with the perovskite top battery and the crystalline silicon bottom battery through a top electrode and a bottom electrode which are independent from each other. The top electrode and the bottom electrode are led to the same side of the laminated cell, so that the welding process of the laminated cell assembly can be simplified, and the preparation efficiency is improved; the positions of the top electrode welding strip and the bottom electrode welding strip correspond to the non-working area of the laminated cell, so that high temperature at a welding spot can be effectively prevented from directly contacting the working area of the laminated cell.

The invention provides a compressor air cylinder and a manufacturing method thereof, a pump body assembly, a compressor and an electric appliance. The compressor air cylinder comprises an air cylinder body, the air cylinder body is provided with a compression cavity, an empty groove is formed between the compression cavity and the outer wall of the air cylinder body, and the empty groove extends in the circumferential direction of the compression cavity; at least one reinforcing rib extending in the radial direction of the air cylinder body is arranged in the empty groove in the axial direction of the air cylinder body. The empty groove is filled with a foamed plastic layer, and the foamed plastic layer wraps the reinforcing ribs. By means of the compressor air cylinder, the problems that the noise reduction heat insulation materials in the compressor air cylinder loosen and fall off can be solved.

The utility model relates to the field of the anti-seismic support hanger industry, in particular to an anti-seismic support hanger with a stable structure. The technical problems that a conventional anti-seismic supporting and hanging frame cannot stably clamp a pipeline, the pipeline is prone to falling off due to strong vibration, and the mounting height and position of the pipeline are difficult to adjust through the conventional anti-seismic supporting and hanging frame are solved. According to the technical scheme, the anti-seismic support hanger with the stable structure comprises a bearing assembly, a fixing assembly, a supporting assembly, a sliding assembly and a clamping assembly. Through the arrangement of the integrally-formed bearing assembly, the overall structure is more stable, the connecting column and the pipe support are installed in different screw grooves in a threaded mode so as to adjust the installation height and position of a pipeline, the symmetrically-arranged electric cylinders drive the clamping blocks to clamp the pipeline in the center, and the clamping effect is good. The rubber blocks fixedly connected with the inner walls of the clamping blocks and the outer wall of the pipeline extrude each other, so that the pipeline is stably clamped, part of impact force generated by vibration of the pipeline can be absorbed, and the problems are solved.

The invention provides magnetic porous silica gel as well as a preparation method and application thereof. The magnetic porous silica gel comprises a magnetic silica gel inner core and a silicon dioxide coating layer arranged on the surface of the magnetic silica gel inner core, the magnetic silica gel inner core comprises a porous silica gel carrier and # imgabs0 # magnetic nanoparticles loaded on internal pore channels of the porous silica gel carrier. Ferroferric oxide is prepared in pores inside the porous silica gel microspheres through a simple method, and Fe3O4 nanoparticles are converted into # imgabs1 # magnetic nanoparticles with higher magnetic responsiveness and chemical stability through high-temperature calcination, so that the problem of magnetism weakening is solved.

The utility model discloses a heat preservation decoration composite board and an outer wall heat preservation structure, the heat preservation decoration composite board comprises a special foaming ceramic panel located on the outer side and a heat preservation material layer located on the inner side, and the special foaming ceramic panel and the heat preservation material layer are connected or bonded together in a composite mode; rabbets are formed in the periphery of the special foaming ceramic panel; the special foaming ceramic panel comprises a front layer structure and a rear layer structure and is divided into a front plate and a rear plate, the front plate and the rear plate are the same in shape and size, the front plate and the rear plate are staggered in the up-down direction, the front plate and the rear plate are also staggered in the left-right direction, and a tongue-and-groove is formed. According to the utility model, the problems of easy water seepage and cold and hot bridge generation at the abutted seam between the composite boards are solved; and the board body is easy to damage due to slotting on the composite board. The external corner part and the periphery of the window opening are easy to crack and damage due to water seepage; the volume weight of the thermal insulation panel material is large, and the panel body is easy to fall off.

The utility model relates to the technical field of timing equipment for blind people, and discloses electromagnetic-driven timing equipment for blind people, which comprises a front shell module. The front shell module comprises a shell body; the key is arranged on the outer side wall of the shell body; the hour hand dial is arranged at the middle position of the upper surface of the shell body; the minute hand dial plate is arranged on the outer side of the upper surface of the shell body; the convex braille alphabets are arranged on the upper surfaces of the hour hand dial plate and the minute hand dial plate; the hour pointer ball groove is formed in the upper surface of the shell body; the minute hand ball groove is formed in the upper surface of the shell body and located on the outer side of the hour hand ball groove; the clock magnetic attraction ball is connected to the outer surface of the hour pointer ball groove in a sliding manner; the watch hand is made of a magnetic attraction material, is only used as a trigger source of the relay switch, does not need to be provided with a magnet, can be light and thin, and can solve the problem that the watch hand falls off from a clock movement hand shaft after a common blind person timing device passes a falling test and when a consumer wears the watch in daily life.

This utility model specifically relates to a child safety seat, which includes a body assembly comprising a main body and an outer shell. The outer shell includes a rear cover and a bottom cover. The rear cover is disposed on the main body and located at the rear of the main body. A first limiting edge and a second limiting edge are provided at the bottom end of the rear cover, forming a limiting groove between the first and second limiting edges. The bottom cover is disposed on the main body and connected to the rear cover. A third limiting edge and a fourth limiting edge are provided at the end of the bottom cover facing the rear cover. The third limiting edge is adapted to be inserted into the limiting groove, and a slot for accommodating the first limiting edge is formed between the third and fourth limiting edges. In this child safety seat, after the rear cover is installed, the third limiting edge is inserted into the limiting groove, and the first limiting edge is inserted into the slot. This effectively limits and fixes the rear cover, preventing it from detaching during drop tests and helping to solve the problem of existing child safety seats where the rear cover easily detaches due to impact.

The utility model belongs to the technical field of steel supports, and particularly relates to a steel support which comprises a steel support body and two first sliding grooves, the two first sliding grooves are formed in the steel support body, first sliding blocks are connected into the first sliding grooves in a sliding mode, and threaded rods are connected into the first sliding blocks in a threaded mode. The threaded rods are located in the first sliding grooves and rotationally connected with the first sliding grooves, and the top ends of the two first sliding blocks are fixedly connected with first baffles. The rotating assembly is located in the steel support body and used for driving the two threaded rods to rotate; the fixing frame is fixedly connected to the steel support body, and a second sliding groove is formed in the bottom face of the inner wall of the fixing frame. When the protection support is used, although a plurality of steel pipes can be fixed from the upper portions of the steel pipes, movable spaces still exist among the steel pipes, the steel pipes cannot be thoroughly fixed, and the steel pipes cannot be fixed completely; therefore, when vibration occurs in the transportation process, the problem that vibration may fall off from the protection support is solved.

The present invention provides a low-temperature, low-power light strip, and relates to the technical field of light strips. The present invention includes a first circuit and a connecting device, a second circuit is fixedly connected to the side wall of the first circuit, a protective cover is fixedly connected to the upper surface of the first circuit, an end of the first circuit away from the second circuit is electrically connected to a power line, two main lines are fixedly connected to the inner wall of the first circuit, a plurality of first light sources are fixedly connected to the inner walls of the first circuit and the second circuit, a rubber material is fixedly connected to the inner wall of the first circuit and the surface of the main line, a plurality of second light sources are fixedly connected to the upper surface of the first circuit, two connecting devices are provided at the ends of the first circuit and the second circuit close to each other, the connecting device includes a slide plate, four fixing devices are provided on the surface of the protective cover and the first circuit, and the fixing device includes two support plates. The present invention solves the problem that it is not easy to connect another light strip when the light strip is not long enough, which makes the connection of the light strip complicated.

An antiskid angle bead for photovoltaic module stacking comprises a base plate, a first limiting part and a second limiting part, the width of the base plate is not smaller than that of a bottom plate of a photovoltaic module frame, the first limiting part is located on one side of the base plate in the width direction, extends upwards and is used for being matched with a side plate of the photovoltaic module frame in a limiting mode, and the second limiting part is located on the other side of the base plate in the width direction. The second limiting part is located on the other side of the base plate in the width direction, extends downwards and is used for being matched with the free end of the bottom plate in a limiting mode. The utility model further provides a photovoltaic module stacking and supporting bag formed by stacking photovoltaic modules through the anti-skid angle bead. Compared with the prior art, the anti-skid angle bead can avoid the problems of dislocation and scattering of the photovoltaic module, can ensure the appearance and quality of the frame of the photovoltaic module, avoids the problem that the appearance of the frame is damaged by adopting an anti-skid foam bonding mode, can be recycled after being used, and is convenient to use. Compared with the mode that a transverse groove is machined in each frame, the cost is reduced.

The invention discloses a clamping jaw structure for an OHT crown block, the clamping jaw structure comprises a clamping jaw driving assembly, a center positioning assembly and an unbalance detection assembly, the clamping jaw driving assembly realizes linear motion of a clamping jaw through a rolling guide rail and a double-spiral screw, and synchronism and stability of clamping and releasing actions are ensured; the central positioning assembly is matched with a compression spring through a linear bearing, and a mushroom head at the top of the wafer box is accurately positioned; the unbalance detection assembly monitors the inclination state of the wafer box in real time and provides an alarm signal through a sliding block, a sensor and a compression spring. The electromagnetic brake assembly automatically locks the double-spiral screw during power failure, the clamping state of the clamping jaw is kept, and the wafer box is prevented from falling off. A deep groove ball bearing is integrated in the bearing seat, so that high-precision support and low-friction operation are provided; the device has the characteristics of high safety, high positioning precision, strong adaptability and reliable operation, and is particularly suitable for the high-efficiency and safe carrying requirements of wafer cassettes in semiconductor production.

The utility model relates to the technical field of new energy lithium ion batteries, and discloses a clamp for processing new energy lithium ion batteries, which comprises a base, a clamping mechanism is mounted in an inner cavity of the base, and the clamping mechanism comprises a turntable, a guide groove and a moving groove. According to the clamp for processing the new energy lithium ion battery, a rotating disc is held to rotate, a screw rod is driven to rotate through rotation of the rotating disc, a movable plate is driven to move through rotation of the screw rod, a movable block is driven to move through movement of the movable plate, and a connecting plate is driven to move through movement of the movable block; a first clamping plate is driven to move through movement of a connecting plate, so that the new energy lithium ion battery can be stably clamped, and the problem that the clamping is unstable when the new energy lithium ion battery is clamped due to the fact that an existing clamp generally adopts a two-side clamping mode is solved; and the problem that the new energy lithium ion battery easily falls off in the processing process is solved.

The utility model relates to the field of vibration screening machines, and discloses a jarring type vibration screening machine which comprises a vibration screening machine body, hammer iron is arranged on the edge of the top end of the vibration screening machine body, a support is movably installed on the edge of the other side of the top end of the vibration screening machine body, a limiting clamping sleeve is movably installed on the top of the support, and a tray is movably installed on one side of the outer surface of the limiting clamping sleeve. Fixing guide rails are welded to the bottom end of the tray at equal intervals, supporting frames are movably installed in the fixing guide rails, the bottom end edges of the supporting frames extend out of the fixing guide rails to be fixedly connected with connecting bases, and fixing frames are fixedly installed in the middle of the bottom end of the tray and hinged to one sides of the inner walls of the connecting bases. The movable supporting frame is clamped to the outer surface of the screen frame, so that the effect of conveniently protecting the screen frame during vibration is achieved, the stability of the screen frame placed in the support is improved, the problem that the tray moves under the hammering action to drive the screen frame to fall off is solved, and the overall use efficiency of the vibration screening machine body is improved.

The invention belongs to the technical field of laser etching, and particularly relates to a surface microstructure for improving stress tolerance of a coating and a processing method of the surface microstructure. According to the technical scheme, according to the surface microstructure for improving the stress tolerance of the coating, a plurality of first direction grooves which are evenly distributed in parallel and a plurality of second direction grooves which are evenly distributed in parallel are machined in the surface of the coating through a laser etching machine, and the included angle between each first direction groove and the corresponding second direction groove is 60 degrees; a surface microstructure distributed in a net shape is formed; and the cross sections of the first direction grooves and the second direction grooves are inverted isosceles triangles. According to the surface microstructure for improving the stress tolerance of the coating and the machining method of the surface microstructure, the stress tolerance capacity of the coating is greatly improved, the problems of cracking and falling of the coating in a thermal cycle environment are solved, the service time of the coating is prolonged, and the repair cost of parts with the coating is saved.

The application discloses a kind of heteroatom Y molecular sieves and its preparation method and application, the method comprises: using dealuminating and silicon supplementing reagent and heteroatom precursor mixed solution to impregnate modified Y molecular sieve, after suction filtration, washing, drying, calcination obtains heteroatom Y molecular sieve.The heteroatom Y molecular sieve prepared by the method is doped into molecular sieve framework with heteroatom, with high crystallinity and good hydrothermal stability, and the preparation method of the heteroatom Y molecular sieve is simple and easy to operate.

The invention provides a display panel, a preparation method thereof and a display device, and belongs to the technical field of display. In the display panel, a side edge wire is connected with a first surface wire through an electrode structure, and further passes through a first surface and a side surface in sequence to extend to a second surface. The electrode structure comprises at least one layer of conductive pattern and at least one passivation layer, wherein the conductive pattern and the passivation layer are sequentially stacked in the direction away from the substrate, and the passivation layer is located on the side, away from the substrate, of each layer of conductive pattern. The first included angle between any passivation layer and the bearing surface of the substrate is smaller than or equal to the second included angle between the conductive pattern close to the substrate and the bearing surface of the substrate, so that the problem that a film layer climbs and falls off due to the fact that the included angle is too large due to the influence of a preparation process can be avoided, and it can be ensured that the product yield is good.

The application discloses a kind of high-efficiency preparation methods for oxide cathode by exhaust activation synchronous sintering, comprising the following steps: S1.metal matrix powder and emitting material are mixed and ball milled, so that the emitting material is uniformly adhered to the surface of the metal matrix powder;S2.the mixed powder after ball milling is screened;S3.the metal matrix powder with emitting material adhered on the surface obtained by screening is placed in a pressing mold, a predetermined pressure is applied for pressing, and an emitter compact is obtained;S4.the emitter compact is assembled into a cathode cylinder and fixed, and a hot wire component is assembled, to obtain a pre-assembled cathode;S5.the pre-assembled cathode is placed in a vacuum environment, and the hot wire component is powered to heat for exhaust treatment and activation treatment, and simultaneously sinter the emitter compact into a metal sponge emitter with uniformly dispersed emitting material inside.The application greatly shortens the cathode preparation period, the emitting material is uniformly distributed, the matrix is firmly combined, and the production efficiency and product reliability are significantly improved.

The invention provides a brand-new preparation method of a button supercapacitor, a preparation method of a conductive adhesive and a dry-method thick carbon film required in the preparation process is redesigned, and the preparation process of gluing, glue drying and glue softening, carbon film punching and carbon film and coating lamination is used. In the whole process, no water is introduced, the dry carbon film is flexibly connected with the shell cover, the high-temperature performance of the product can be greatly improved, the energy consumption generated in the water removal process is reduced, and compared with a traditional process, the product prepared by using the improved method can reduce the total energy consumption by 40%, shorten the production time by 50% and reduce the production cost. And the high-temperature load performance of the product is greatly improved.

The invention discloses a ceramic tile back mold core and a ceramic tile. The ceramic tile back mold core comprises a ceramic tile blank body, a back mold core, round hook shading and inverted hook shading; the back mold core is fixedly arranged at the bottom of the ceramic tile blank body, and the round hook shading and the inverted hook shading are arranged at the end, away from the ceramic tile blank body, of the back mold core; the round hook shading is integrally square and is arranged in the center of the back mold core, and radial inverted hook shading is arranged outside the round hook shading at equal angles; the barb shading comprises first barbs and second barbs, and the first barbs and the second barbs are arranged in a staggered mode in the same direction. The first concave surface and the second concave surface are in the same direction and inwards face the center of the back mold core; the contact area between the back mold core and the adhesive is increased through the round hook shading at the center of the back mold core, and the external force in various directions is offset while the adhesive force is increased through the inverted hook shading, so that the problem that the contact area between the back mold core and the adhesive is insufficient, so that the ceramic tile falls off or is hollow is solved, and the back mold has the advantage of simplicity and convenience in installation.

This utility model discloses an electronic lock, including a housing with a mounting position. The side wall of the mounting position has an unlocking groove and a locking groove. A driving device is fixed inside the housing. An unlocking rod is slidably disposed within the mounting position, with one end connected to a locking rod and the other end connected to the output end of the driving device. A mounting cavity is laterally provided on the unlocking rod, and an elastic telescopic device is embedded in the mounting cavity, with at least two ends partially exposed outside the mounting cavity. The exposed portions of the elastic telescopic device can be pressed into or ejected from the mounting cavity. The driving device drives the unlocking rod to move axially, causing the locking rod to switch between an unlocked position and a locked position. When the locking rod moves to the unlocked position or the locked position, both ends of the elastic telescopic device elastically engage with the unlocking groove or the locking groove, respectively. This utility model solves the problems of the locking rod springing back when locking, causing the charging gun to fall off, and the locking rod springing back when unlocking, causing the charging gun to be unable to be pulled out.

The invention relates to the technical field of electrochromic materials and glass preparation, in particular to a preparation method of sandwich type all-solid-state inorganic electrochromic glass which is formed by sequentially compounding a tempered glass layer, a film layer and an electrochromic film layer pile. The thickness of the tempered glass layer is 4 mm, and the film layer is a PVB film and is 0.76 mm thick. The electrochromic film layer stack takes sodium-calcium non-tempered glass with the thickness of 3mm as a substrate, and an anti-ion diffusion layer, a first conductive layer, a first resistive layer, a negative electrode color changing layer, a second resistive layer, a positive electrode color changing layer, a third resistive layer, a second conductive layer and an outermost protective layer are sequentially arranged on the surface of the substrate from inside to outside; the anti-ion diffusion layer is a silicon dioxide layer, and the thickness is 200 nm. According to the preparation method of the sandwich type all-solid-state inorganic electrochromic glass provided by the invention, through precise design of each film layer structure of the glass and gradient optimization of a preparation process, the comprehensive performance of a product is synergistically improved, and many problems in the prior art are effectively solved.

The utility model discloses a constructional engineering unloading platform convenient to disassemble and assemble, which comprises a support frame, a fixed sleeve block is arranged on the side edge of the support frame and the side edge of a support plate, a material table is arranged at the top of the support frame in a sliding manner, the fixed sleeve block is fixedly arranged on the side edge of the material table, a side protection plate and a front protection plate are arranged above the support frame, and the front protection plate is arranged above the support frame. The side protection plates and the front protection plate are fixedly connected through screws, the bottoms of the side protection plates are inserted into the fixing sleeve blocks in a protruding mode, a clamping pin structure is fixedly installed on the material table, and a fixing structure is arranged at the end, away from the material table, of the supporting frame. According to the discharging platform assembly, the clamping pin structure, the fixing sleeve block, the clamping pin, the fixing screw hole screw, the fixing structure, the threaded column, the jacking column, the lantern ring and other components are arranged, fixed connection of the discharging platform assembly is achieved, the problem that component parts fall off due to looseness of fixed connection structural parts is solved, and the accident risk is reduced.

The utility model relates to the technical field of metal hoses, and discloses a pressure-resistant metal hose which comprises a corrugated pipe, connecting pipes are arranged at the left end and the right end of the corrugated pipe in a sleeved mode, the two connecting pipes are connected with the corrugated pipe through locking rings, and a woven steel wire mesh sleeve is arranged on the outer diameter of the corrugated pipe in a sleeved mode. The two ends of the woven steel wire mesh sleeve are connected with the two connecting pipes through outer rings. Compared with a welding mode of a connecting pipe and a corrugated pipe of a traditional metal hose, the pressure-resistant metal hose is characterized in that the connecting pipe of the pressure-resistant metal hose is of an inserted type and sleeved with the locking ring, then the connecting pipe, the locking ring and the corrugated pipe are welded together in a fusion welding mode through argon arc welding, and the welding mode is higher in pressure bearing capacity and more reliable; in addition, the metal hose not only needs to transport media and compensate displacement, but also needs to bear increasing pipeline pressure of an engine, the welding seam quality and the pressure bearing capacity of the metal hose can be effectively improved, and the metal hose can be better competent for various scenes.

The utility model discloses a video line joint protection device, which belongs to the technical field of protection devices, and comprises a first fixing pipe, a first thread, a limiting pipe and a limiting assembly, and the first thread is arranged on the surface of the first fixing pipe. A first fixing pipe, a second fixing pipe, a limiting pipe, a limiting assembly and a suction cup are arranged, the device is fixed to video equipment through the suction cup, a video line is inserted into the first fixing pipe and the second fixing pipe, the limiting pipe is rotated, the limiting pipe is made to move under the cooperation of a first thread and a second thread, and a ball is extruded through a limiting groove; a plurality of groups of first limiting slide rods are driven to move in opposite directions, and a video line is clamped and fixed under the cooperation of a soft cushion, so that a protection and fixation device is added, the problem that the video line is easy to fall off due to collision or pulling is solved, accidental damage to a plug metal guide rod is avoided, and the service life of the plug is prolonged. And normal use of the video line is prevented from being influenced.