165results about How to "Solve the sealing problem" patented technology

The invention discloses an intelligent electric regulating valve and a control method thereof, and relates to the technical field of regulating valves, the intelligent electric regulating valve comprises a valve body and an actuator, the valve body comprises a shell, a flow inlet channel and a flow outlet channel which are communicated with each other are arranged in the shell, a sealing cavity is formed between the flow inlet channel and the flow outlet channel, and a valve seat is arranged in the sealing cavity; a sealing hole is formed in the valve seat, an arc-shaped sealing face is formed in the valve seat, a valve element is arranged between the valve body and the actuator, the valve element comprises a valve rod and a valve head, the valve rod is connected with the shell in a sealed and sliding mode, the valve head is located in the shell and matched with the valve seat, and the valve sleeve is arranged on the valve head and matched with the valve seat. By means of the detachably-arranged valve sleeve, after the adjusting valve is used for a period of time, the sealing face of the valve sleeve is scoured by fluid media and then is greatly abraded, workers can solve the problem of the sealing performance of the valve element in the mode that the valve sleeve is replaced, and compared with a valve element of an integrated structure, the mode has the advantages of being simple, efficient and capable of saving cost.

The invention provides an integrated plate type metal-supported solid oxide fuel cell or electrolytic tank and a power supply, and relates to the technical field of fuel cells. The battery or the electrolytic tank comprises a metal supporting body, an insulating layer, an electrochemical reaction unit and a conductive piece. The metal support body has a first surface, a second surface and a peripheral surface which are hermetically connected. And a flow channel for reaction medium materials is arranged between the first surface and the second surface. And the metal support body is provided with a plurality of ventilating through hole areas communicated with the flow channel of the reaction medium material. An electrochemical reaction unit is arranged on at least one surface of the metal supporting body, an insulating layer is arranged between the metal supporting body and the electrochemical reaction unit, and the through holes of the ventilation through hole area penetrate through the insulating layer. The conductive part is used for connecting the electrochemical reaction unit. The problems that a solid oxide fuel cell is difficult to seal, slow in start and stop, poor in thermal shock resistance, low in mass power density, low in output voltage and the like are effectively solved, and the solid oxide fuel cell is particularly suitable for portable power supplies, aircrafts, other mobile carrier power supplies and other scenes.

The application discloses a through-layer drilling ring flow supply self-cleaning and blocking integrated hole bottom extraction non-jetting drill tool, which comprises a multifunctional rod body, an extraction inner group pipe, a radial cavity forming nozzle, an axial blocking nozzle, a conical hole screen plate strip, an air inlet transition piece, a cross-border air inlet pipe, a compression spring slide valve assembly and a ring flow opening and closing drill bit. The special slide valve control mechanism is adopted, the original radial cavity forming jet flow is reserved, and the instantaneous axial blocking jet flow is added, so that the conical hole screen plate strip is self-cleaned and blocked. The cross-border air inlet pipe and the transition air inlet piece are combined and sealed, so that the radial air inlet channel passes through the axial flow supply channel without air and water leakage. The ring flow supply anti-backflow opening and closing drill bit is designed, and the jet flow water medium pollution problem and the drill bit opening and closing problem are solved.

The utility model discloses a quick assembly structure of a reinforced sheet-pile wall, which relates to the technical field of sheet-pile walls and comprises a foundation pile and a main pile, the foundation pile is arranged under the ground, the main pile is arranged on the inner side of the foundation pile, and the upper half part of the main pile extends to the outer side of the top end of the foundation pile; the soil retaining plates are prefabricated type soil retaining plates, and the soil retaining plates are arranged between the two main piles in an up-down stacking state; the sealing plates are horizontally arranged at the top ends of the main pile and the breast boards; and the sealing and reinforcing assembly is arranged between the two main piles, is adjacent to the soil retaining plates and is used for enabling the soil retaining plates to be tightly connected between the main piles in an abutting mode to form a sealing state, and the sealing and reinforcing assembly is arranged between the two main piles, is adjacent to the soil retaining plates and is used for enabling the soil retaining plates to be tightly connected between the main piles in an abutting mode. According to the quick assembly structure of the reinforced sheet-pile wall, the reinforcing and sealing effects on the breast boards are achieved, lateral permeation of soil is prevented, the stability of the sheet-pile wall is effectively improved, and the service life of the sheet-pile wall is effectively prolonged.

The utility model discloses a guide pillar type rotary oil cylinder which comprises a main cylinder body, a cylinder cover arranged on the top face of the main cylinder body, a piston rod penetrating through the cylinder cover and inserted into the main cylinder body, and a guide pillar. The upper end of the piston rod is connected with a T-shaped pull rod head, and the lower end of the piston rod is provided with a piston head. The upper end of the guide column is inserted into a column groove in the bottom of the piston head and connected through a ball guide groove structure, the lower end of the guide column is inserted into an oil groove in the bottom of the main cylinder body, and the oil groove is communicated with the oil groove oil injection hole. The utility model has the advantages of simple structure, simplicity in operation, small volume, high reliability, good sealing performance, smooth action, difficulty in blockage, good flexible adaptability and easiness in overhaul and maintenance.

The utility model belongs to the technical field of coal coking equipment, and particularly relates to a carbonization chamber pressure regulating valve and a pressure regulating system.The carbonization chamber pressure regulating valve comprises a valve body and an executing mechanism, and the valve body comprises an inner cylinder, an outer cylinder, an upper port and a lower port; the inner cylinder and the outer cylinder are coaxially arranged and fixedly connected together through the upper port, the lower port is fixedly connected with the bottom end of the outer cylinder, the upper port, the outer cylinder and the lower port form a valve body shell, the upper port, the inner cylinder and the lower port form a valve body channel, and the valve body channel is communicated with the valve body shell. And a driving turning plate and a driven turning plate are arranged between the inner barrel and the outer barrel. The pressure regulating valve is favorable for solving the technical problems that the pressure regulating valve in the pressure regulation of the coking chamber of the existing domestic coke oven is relatively high in boundary dimension, is not convenient to install and apply, is not smooth to open and close, is easy to block and burn a driving part, and is low in control precision.

The present application belongs to the technical field of disposable plugging stopper, and specifically provides a combined pin plugging stopper and a slurry sealing and blocking method. The combined pin plugging stopper comprises a stopper pipe, a first pin, a sliding structure, a deformation piece, an inner support, a steel ball, a second pin, a connector, a slurry overflow port and a slurry outlet pipe. The stopper pipe is fixedly connected with a grouting pipe through the first pin. The other end of the stopper pipe is arranged along the central axis of the grouting pipe and is connected with the slurry outlet pipe. The steel ball is arranged inside the side of the stopper pipe close to the slurry outlet pipe. The second pin is arranged between the steel ball and the slurry outlet pipe. The sliding structure is sleeved on the stopper pipe and is provided with a plurality of deformation pieces. The end of the sliding structure close to the slurry outlet pipe is connected with the slurry overflow port arranged on the slurry outlet pipe through the connector. The inner support is arranged on the stopper pipe and between the adjacent two deformation pieces. The present application can solve the problem of sealing failure or difficult recovery in the high-pressure grouting process caused by the structural and technological defects of the existing plugging stopper.

This utility model relates to the field of wood ear mushroom packaging technology and discloses a wood ear mushroom packaging vacuum coating machine, including a worktable, a vacuum chamber hinged to the top of the worktable, a connecting pipe connecting the worktable and the vacuum chamber, multiple material feeders rotatably arranged at the bottom of the vacuum chamber, and a spreading component movably arranged inside the worktable. The spreading component includes a placement platform, a moving shaft, and a lifting column. The lifting column is fixedly arranged at the bottom of the placement platform, and the moving shaft is rotatably arranged inside the worktable. The lifting column is sleeved on the moving shaft. The placement platform clamps the wood ear mushroom product through the four-sided abutment plates. The disc eccentrically arranged on the moving shaft pushes the lifting column, and the lifting column pushes the placement platform. The placement platform, through the up and down vibration of the vibration spring, drives the packaging to vibrate and spread the wood ear mushroom evenly, so that the wood ear mushroom particles are evenly distributed in the packaging, avoiding the particles from breaking the packaging and solving the problems of poor sealing and easy moisture oxidation caused by the gaps between particles.

The invention discloses a heat dissipation pipe bending forming device, relates to the technical field of heat dissipation pipe machining, and aims to solve the technical problems that in the prior art, the interior of a pipeline is difficult to support, so that the defects of wrinkles, section distortion and the like are easily generated in the bending process of the pipeline, and the machining quality of the heat dissipation pipe is limited. Comprising a control cabinet and a driving disc arranged outside the control cabinet. Flexible support can be provided for the interior of the heat dissipation pipe in the mode that liquid is injected into the heat dissipation pipe, wrinkles and section distortion of the pipe in the bending process can be avoided, meanwhile, due to the fact that the pressure of a liquid medium acting on the inner wall of the pipe is the same in all directions, the forming quality can be guaranteed, defects are reduced, and the production efficiency is improved. Due to the supporting effect of the liquid medium, the wall thickness changes of the inner side and the outer side of the pipe in the bending process are relatively uniform, the wall thickness thinning and thickening phenomena are reduced, and then the effect of guaranteeing the quality of the heat dissipation pipe machined by the device is achieved.

The utility model discloses a barreled water semi-sealing film with holes in folded edges. The barreled water semi-sealing film comprises a plastic packaging film and a sealing film, wherein the plastic packaging film is of a cylindrical structure; the folded edge is formed on the plastic packaging film; and the tearing and sealing structure is arranged on the plastic packaging film and is distributed along the folded edge. According to the utility model, firstly, the tearing and sealing structure is arranged at the folding edge, and the symmetrically distributed line holes enable a user to apply force more uniformly during tearing and sealing, so that the tearing and sealing difficulty and the risk of incomplete tearing are reduced, and meanwhile, the sealing problem caused by the fact that the line holes penetrate through the other surface of the plastic packaging film in the traditional design is avoided. In addition, in cooperation with the design of the convex edge and the concave opening, a user can easily find the starting point of tearing and sealing, the tearing opening is neater, therefore, the attractiveness and practicability of the product are improved, the user experience is remarkably optimized, finally, the distinguishing part is made of materials (such as rubber strips made of polypropylene) with the hardness different from that of the plastic packaging film, and through the design of strong and weak partitioning, the packaging effect is better. And the convenience of tearing and sealing and the aesthetic property of the sealing opening are further improved.

The utility model relates to the technical field of valve body assemblies, in particular to a valve body assembly of a mud pump, which comprises a valve rubber sheet, a nut fixing groove is arranged on the top surface of the valve rubber sheet, the inside of the nut fixing groove is fixedly connected with the surface of a bolt bar, and the surface of the bolt bar penetrates through a top surface screw hole of a valve gland. The surface of the bottom of the valve gland is inserted into the valve rubber, the surface of the bolt rod is in threaded connection with the interior of the knob nut, and the surface of the valve seat is sleeved with an inner ring of the valve gland. The valve body assembly of the mud pump has the advantages that the surface of the bolt rod is fixedly connected with the surface of the nut fixing groove, the surface of the nut fixing groove penetrates through the screw hole in the top face of the valve gland, and when the nut is rotated manually, sealing is formed between the valve rubber and the valve gland; therefore, the valve seat and the valve body are sealed in the valve rubber and the valve gland, and abrasion between the valve seat and the valve body due to the fact that dust enters a gap between the valve seat and the valve body is avoided.

The utility model relates to the field of medicine processing, and particularly discloses a medicine vacuum sealing machine which comprises a conveying table, and a conveying groove for conveying aluminum foil is formed in the middle of the conveying table. The negative pressure suction heads penetrate through the side wall of the conveying table and communicate with the conveying groove, and the negative pressure suction heads are fixedly connected with the conveying table; the pressing plate is vertically opposite to the conveying groove, and the pressing plate is located among the multiple negative pressure suction heads; a plurality of pressing strips are fixedly arranged on the lower surface of the pressing plate in a protruding mode. And the intermittent conveying unit intermittently conveys the aluminum foil. According to the scheme, a plurality of tablets can be packaged in a separated mode through a plurality of pressing strips, and finally the packaged tablets form independent vacuum spaces, so that the tablets are stored more effectively and are not affected by the air environment.

The utility model belongs to the technical field of material conveying equipment discloses a kind of rotation feed valve using gas seal, including valve body and the rotor in the material passage of being installed in the valve body inside, the rotor is connected with driving device by rotating shaft, the rotor is driven by the driving device and rotates around its center line to realize the conveying of material;Gas seal device is installed on the valve body, and the gas seal device includes gas source, and sealing nozzle is connected with gas source by gas delivery pipeline, the sealing nozzle is installed at the clearance between the end portion of valve body and rotor, and gas is injected towards clearance and forms gas film at the clearance between the end portion of valve body and rotor.This utility model's rotation feed valve using gas seal can improve sealing performance, prolong service life, reduce maintenance cost, meet the needs of different industrial production processes, and can solve the problems of poor sealing performance and inconvenient maintenance in the prior art.

This utility model provides a high-temperature cleaning controller with a sealing structure, including a lower cover with an upper opening, an upper cover with a lower opening, a sealing gasket, and at least two connecting members. The upper surface of the lower cover has an annular protrusion surrounding the opening. The connecting members are respectively installed on at least one set of sides of the lower cover. The sealing gasket is installed on the lower surface of the upper cover, surrounding the opening. The upper cover and lower cover are snapped together, with the sealing gasket abutting against the lower part of the protrusion. The upper cover is fixed to the connecting members from its side by fasteners. This utility model adopts a non-top-bottom fastening structure, adding connecting members along the length direction to improve the overall sealing performance. The high-temperature cleaning controller, through the connecting members and sealing gasket, improves the sealing performance of non-top-bottom fastening, thereby solving the sealing problem of products with non-top-bottom fastening.

The utility model discloses a stab-proof outdoor filter bag relates to outdoor filter bag technical field, including connecting fixed subassembly and filter bag connecting subassembly, connecting fixed subassembly includes fixed ring, flexible protection bag and arc fixture block, the arc fixture block is fixed mounting in the top of flexible protection bag, and the fixed ring is fixed mounting in the flexible protection bag. The filter bag connecting assembly is fixedly mounted in the connecting and fixing assembly, the filter bag connecting assembly comprises a filter bag connecting ring and a connecting hole, and the connecting hole is formed in the filter bag connecting ring. Under the combined action of the flexible protection bag and the filter bag connecting ring, the filter bag is placed in the pressing groove in the filter bag connecting ring, then the filter bag is pressed through the filter bag pressing plate, the filter bag connecting ring and the filter bag pressing plate are fixed through the fixing column, and then the filter bag is placed in the flexible protection bag. The filter bag is protected to a certain extent through the flexible protection bag, and the situation that the filter bag cannot be used due to the fact that the filter bag is punctured by shrubs, trees and other objects is prevented.

The utility model relates to a Y-shaped stop valve, which is characterized in that a valve body is provided with an observation and maintenance window, the observation and maintenance window is provided with a window sealing cover, the observation and maintenance window is positioned beside a valve seat and a valve core, the valve seat is sleeved on the valve body and is screwed by threads, the upper port of the valve seat is provided with a sealing matching part which is matched with the valve core in a sealing way, and the lower end of the valve seat is also provided with a positioning hole; the lower end of the valve element is connected with a positioning rod. After the disassembly and assembly window is covered, the situation in the valve body is observed and overhauled through the observation and overhaul window, a disassembly and assembly visual structure is formed, problems can be observed and found in time, the corresponding problems can be overhauled and solved, the whole valve structure does not need to be disassembled and assembled, and more convenience is achieved. The valve body and the valve seat are arranged in a split mode, the machining quality of the valve seat is guaranteed, and the valve seat on the valve body can be smoothly disassembled, assembled and overhauled under the condition that the valve body is provided with an observation and overhaul window. The valve element and the valve seat are additionally positioned through a positioning rod and positioning hole matching structure, and the coaxiality in the operation process can be guaranteed.

The present invention relates to the field of flexible robot technology, and more specifically to a cross-scale electro-magnetic coupling driven flexible robot and its preparation method and application. A cross-scale combination of a macroscopic flexible main structure and a microscopic microciliary surface structure is achieved through a distributed and modular processing technology; the macroscopic flexible structure is driven by an electric field, which can achieve a wide range of flexible swings to ensure that more seawater is swept and contacted during the movement; the surface microstructure is driven by a magnetic field, and reciprocates at a high frequency under the action of a high-frequency alternating magnetic field to achieve efficient contact and adsorption of micropollutants in seawater. The combination of the two motion modes can realize the efficient controllable macroscopic motion of the flexible robot in a high-pressure, highly disturbed seawater environment and the adsorption motion of microscale pollutants.

This utility model discloses a compressible filter element, comprising a main body, a filter material, an upper soft seal, and a lower soft seal. The filter material is folded into multiple folded pieces, with adjacent folded pieces connected together. The connection point between two adjacent folded pieces on the outer side of the filter material forms two peak-shaped folded pieces. An upper sealing portion is formed by sealing the inner surfaces of the two peak-shaped folded pieces at the upper end of the filter material with a sealant material. A lower sealing portion is formed by sealing the inner surfaces of the two peak-shaped folded pieces at the lower end of the filter material with a sealant material. The upper end of the filter material is connected to the upper soft seal, and the lower end of the filter material is connected to the lower soft seal. This solves the sealing problem when the filter element is installed in an air purification assembly structure. The filter element can be squeezed and flattened to reduce its volume, thereby reducing the volume required for product transportation and lowering transportation costs.

The utility model discloses a rod mill cylinder body sealing and leakage-proof device which comprises a rod mill cylinder body, a lining plate is arranged in the rod mill cylinder body, the lining plate is fixed on the inner wall of the rod mill cylinder body through a leakage-proof bolt, and the leakage-proof bolt comprises a screw rod. The top of the screw rod sequentially penetrates through the lining plate and the rod mill barrel from the inside of the rod mill barrel to the outside and then is locked through a nut, and an anti-leakage gasket is further arranged on the screw rod between the rod mill barrel and the nut; according to the device, the anti-leakage gasket is arranged on the screw rod between the rod mill barrel and the nut, so that the bolt hole of the barrel is effectively sealed, and the problem that the bolt hole of the barrel cannot be effectively sealed by an existing sealing structure is solved; and meanwhile, the device solves the problem that sealing cannot be realized due to the fact that an existing sealing ring is not tightly attached to the arc surface of the outer wall of the rod mill barrel in a manner that the first expansion sealing ring and the second expansion sealing ring are attached to the inner wall of the steel sealing ring body in a sealing manner.

The utility model provides a kind of engineering machinery LED spotlight, including rear shell, the lamp panel assembly with several LED lamps, front frame and optical assembly;The lamp panel assembly is arranged in rear shell interior and is connected with rear shell;The optical assembly includes face shield, face shield is provided with equal optical lens component with the number of LED lamp, face shield and optical lens component are integrated structure;The face shield is connected with rear shell, and each optical lens component cover is equipped with corresponding LED lamp, and the light emitted by LED lamp is emitted through optical lens component and face shield;The front frame is connected with rear shell and accommodates lamp panel assembly and optical assembly in rear shell interior.The utility model engineering machinery LED spotlight can solve the problem that the structure stability is poor and the sealing property is poor caused by the separation structure of face shield and optical lens, to improve the optical performance and lighting effect of LED spotlight.In addition, engineering machinery LED spotlight can adapt to different plug use, to improve practicality and versatility.

The electronic expansion valve structure comprises a valve body assembly, the valve body assembly comprises a valve seat part, a nut assembly and a valve needle part, the valve needle part comprises a large valve needle assembly and a small valve needle assembly, the small valve needle assembly is connected with the large valve needle assembly in an axial displacement mode, and the nut assembly is connected with the small valve needle assembly in an axial displacement mode. A large pressing sleeve used for axially limiting the small valve needle assembly is arranged on the large valve needle assembly, a valve element and a rotor which are coaxially arranged are arranged in the shell, a compression spring is arranged in the valve seat component, and the valve needle component is sleeved with the compression spring. One end of the compression spring is in contact with the nut assembly, and the other end of the compression spring is in contact with the large pressing sleeve. The sealing performance of the large valve port of the electronic expansion valve and the action reliability of a switch valve can be effectively improved, and the electronic expansion valve has the advantages of being few in part and simple and reliable in assembly process.

The utility model discloses a totally-closed double-layer machine tool protection structure which comprises an inner layer protection structure and an outer layer protection structure, a main body of the inner layer protection structure and a main body of the outer layer protection structure are respectively made of metal plates, the inner layer protection structure is fixed on a machine tool body of a machine tool and arranged on the front side of a machining area of the machine tool, and a chip groove is formed in the bottom of the inner layer protection structure. A plurality of chip flushing blocks are arranged on the periphery of the chip groove, the chip groove is communicated with a chip cleaner of the machine tool, the chip flushing blocks are connected with the water outlet end of the high-pressure water pump, a protection pulling plate is connected between the rear side of the inner-layer protection structure and a spindle box of the machine tool, and the outer-layer protection structure is connected to the outer side of the inner-layer protection structure and fixed to the machine tool body. A protective door is arranged on the front side of the outer-layer protective structure, and the front side of the machining area is totally closed through the inner-layer protective structure and the outer-layer protective structure. The totally-closed double-layer machine tool protection structure adopts an inner and outer double-layer design, is convenient to mount and maintain, can realize totally closing of the front side of a machining area of a machine tool, and effectively solves the problems of poor sealing performance, difficulty in mounting and the like of an existing machine tool protection structure.

The thinning machine comprises a rotary table assembly, a grinding assembly, a liquid receiving disc and a sealing assembly, the rotary table assembly is used for bearing a to-be-machined part, the grinding assembly is used for grinding the to-be-machined part on the rotary table assembly, the liquid receiving disc is used for receiving waste liquid, and the sealing assembly comprises an annular sealing groove and a flange structure; the annular sealing groove is formed in the liquid receiving disc and used for storing sealing liquid, the flange structure comprises an annular drainage flange and an annular sealing flange, the annular drainage flange is used for guiding waste liquid on the rotary table assembly to flow into the liquid receiving disc, and the annular sealing flange is arranged between the annular drainage flange and the rotary table assembly; and the sealing ring is used for being inserted into the sealing liquid in the annular sealing groove. The problem that in the prior art, sealing is conducted through a sealing ring, and defects exist can be effectively solved.

The utility model belongs to the vertical mill technical field, concretely relates to a kind of automatic unblocking device on the feeding chute of slag vertical mill, including vertical mill shell, feeding chute is provided on the vertical mill shell, the inside fixedly connected with connecting pipe of the vertical mill shell, the inside of the vertical mill shell is provided with mill inner chute tongue board, connecting pipe is provided on the mill inner chute tongue board, air storage bag is provided on the connecting pipe, flow control valve is provided on the connecting pipe, nozzle is provided on the connecting pipe, nozzle is provided on the mill inner chute tongue board, the outside of the feeding chute is provided with sealing mechanism. By design feeding chute, air storage bag, connecting pipe, flow control valve, nozzle and mill inner chute tongue board etc. component, the inside of feeding chute on device is easy to block material to the characteristics such as the accumulation of different moisture of material into mill, cohere, block etc. have the problem of better adaptability.

This invention discloses a side-mounted magnetic stirring device and method. The device includes a storage unit, a spherical stir bar placed inside it, and a magnetic stirrer disposed on its outer wall. The spherical stir bar has an embedded magnet, and the magnetic stirrer drives the spherical stir bar to roll and / or rotate through a magnetic field. The outer wall of the storage unit may be provided with a slide rail or guide groove, and the magnetic stirrer can move axially via a slider or roller; it may also include a fixing component and an adjusting screw for connecting the magnetic stirrer and the liquid-pushing piston and adjusting their relative positions. The method includes placing the spherical stir bar inside the storage unit, starting the magnetic stirrer to drive stirring, and making the magnetic stirrer move synchronously with the liquid-pushing piston. This invention requires no modification to the opening, does not occupy bottom space, has no leakage risk, and is easy to assemble and disassemble, making it particularly suitable for tubular liquid storage units with limited bottom space or requiring temporary stirring.

The utility model is suitable for the technical field of special gas supply cabinet, provides a special gas supply cabinet anti -leak structure, including the cabinet body, the upper end fixedly connected with fixed plate of cabinet body inner wall, one end of fixed plate is provided with movable plate, the upper fixedly connected with the baffle of fixed plate, the exhaust pump fixed connection in one side of cabinet body, cabinet body inner wall between baffle and fixed plate is fixedly connected with air pressure sensor and gas monitor respectively, the other side of cabinet body is fixedly connected with air inlet pipe and pressure relief pipe respectively. The special gas supply cabinet anti -leak structure provided in the scheme utilizes baffle, movable plate and fixed plate, so that the leakage space is smaller, utilizes two gas monitors of upper and lower simultaneously, is convenient for more comprehensive detection to this space, and then is convenient for more convenient monitoring of heavier and lighter gas, and the leaked gas can be discharged after monitoring, avoids the security risk caused by too much leakage.

The invention relates to the technical field of pressure vessel forming, in particular to a forming method of a bonding structure of a multi-opening pressure vessel structural part and the bonding structure. The method comprises the following steps that S1, rubber lining forming is conducted on the basis of a sand core mold, a rubber layer is formed, and the thickness of rubber ranges from 1 mm to 6 mm; s2, the surface of the rubber lining is coated with a transition layer, the transition layer is prepared from epoxy resin, an amine curing agent, liquid nitrile rubber and an accelerant, the mass ratio of the epoxy resin to the amine curing agent to the liquid nitrile rubber to the accelerant is 100: (10-20): (10-40): (1-5), and the thickness of the transition layer ranges from 0.1 mm to 0.5 mm; the elastic layer can be coated on the surface of the adhesive, the deformation of the metal material and the deformation of the rubber material are adjusted to be inconsistent under the action of internal high pressure under the condition that the bonding strength of the adhesive is not affected, and the water pressure bursting strength of the pressure vessel with the multiple openings in the side face is improved and can reach 40 MPa or above.

The present application relates to the technical field of composite materials, and particularly relates to a composite material oil tank and a forming method thereof. The present application provides a composite material oil tank, which comprises a plurality of barrel bodies with open ends, and the barrel bodies are connected in the axial direction; the cross section of the first end of each barrel body is a ladder structure with two ladder shapes which are symmetrical along the axis; the cross section of the second end of each barrel body is a protrusion structure with two protrusion shapes which are symmetrical along the axis and extend in the axial direction; the ladder structure and the protrusion structure are matched in shape to complete splicing; the surface of the protrusion structure close to the axis and one surface of the ladder structure are sealed and bonded by sealing glue; and the protrusion surface of the protrusion structure perpendicular to the axis and the ladder structure are bonded by structural glue. The present application provides a composite material oil tank and a forming method thereof, which can realize the forming of a large-size and lightweight composite material oil tank and improve the sealing reliability of the composite material manufacturing.

The invention discloses a sealing device for generating magnetic liquid in situ to form a micro gap. The sealing device comprises a large shaft, a sealing shaft sleeve, a permanent magnet, a pole shoe and a magnetic phase change material. The sealing shaft sleeve is installed outside the large shaft and rotates along with the large shaft, the permanent magnet generates a magnetic field, the pole shoe forms different levels of permanent magnetic fields under the action of the magnetic field, and the magnetic phase-change material is filled between the sealing shaft sleeve and the pole shoe, becomes magnetic liquid after being heated to form a micro-gap and is sealed under the action of the magnetic field. By utilizing the characteristics of the magnetic phase change material and the principle of generating heat by friction, the function of generating magnetic liquid between the sealing shaft sleeve and the pole shoe of the magnetofluid sealing device is realized by controlling the rotation of the large shaft, the sealing reliability and stability are improved under the action of a magnetic field, and the problem that a magnetofluid sealing gap cannot be too large or too small is effectively solved; direct contact friction between the pole shoe and a rotating part is avoided, and abrasion damage is reduced.

The utility model provides a water-cooled motor, which comprises a shell, a front end cover connected to the front end of the shell, a rear end cover connected to the rear end of the shell, a cooling mechanism arranged at the center of the shell, a rotor arranged at the outer end of the cooling mechanism, a stator arranged at the outer end of the rotor, and a liquid outlet arranged at the right end of the center of the front end cover. According to the water-cooled motor, the cooling mechanism, the sealing gasket, the first convex block, the second convex block, the sealing ring and other structures are arranged, so that the effects of cooling the motor shaft and avoiding the leakage of the cooling liquid can be achieved.