564results about "Pipe-joints" patented technology

The invention discloses a novel plug-in type glass fiber reinforced plastic air duct, and relates to the technical field of glass fiber reinforced plastic air ducts. The novel plug-in type glass fiber reinforced plastic air duct comprises a duct body, a plug-in section is arranged at the left end of the duct body in a sealing and sliding mode through a piston ring, a clamping ring is fixed to the left end of the plug-in section, and a check ring is fixed to the inner wall of the duct body; the sealing adjusting assembly is mounted on the inner wall of the socket section through two sliding grooves; and the auxiliary dismounting assembly is arranged between the mounting frame and the sealing adjusting assembly. The sealing ring tightly attached to the outer wall of the inserting section is arranged on the inner wall of the socket section, so that the sealing performance of the inserting structure is improved; the sealing adjusting assembly is arranged, the sealing ring is opened in the inserting process of the inserting section, and the friction resistance during inserting is reduced; by arranging the inserting section capable of being adjusted in a sliding mode and the auxiliary disassembling assembly, the inserting section can be slidably contained in the barrel body during disassembling, the two ends of the middle-section glass fiber reinforced plastic air barrel and the other glass fiber reinforced plastic air barrel are not partially overlapped, and therefore the middle-section glass fiber reinforced plastic air barrel can be rapidly separated from the air barrels at the two ends, and the maintenance and replacement efficiency is improved.

The invention discloses a workshop air purification dehumidifier, and belongs to the technical field of dehumidification, the workshop air purification dehumidifier comprises a machine body, the machine body is provided with a through air cabinet pipe, the air cabinet pipe is internally provided with a ventilation pipe, one end of the air cabinet pipe is provided with a fan matched with the ventilation pipe, the other end of the air cabinet pipe is provided with an air inlet, and the air cabinet pipe is internally provided with a transition mechanism; and a pre-cleaning mechanism is arranged in the ventilation pipe. According to the device, through the passing groove defined by the air inlet and the adjusting blocks and the design of multiple sections of different diameters of the ventilation pipe, a section of Venturi pipeline with the inlet shrunk and then gradually enlarged is formed from the air inlet to the ventilation pipe, on the premise that the power of the fan is not increased, the air inlet flow is accelerated, kinetic energy is converted into negative pressure energy through the Bernoulli effect, and the energy efficiency is improved. The high-speed low-pressure area of the throat remarkably increases the suction force at the inlet of the air inlet, and the suction efficiency of heavy impurities such as water vapor suspended in a workshop is improved, so that the overall purification efficiency is improved.

The utility model discloses an assembly type low-specific-friction low-air-leakage ventilation pipeline, and relates to the technical field of ventilation air pipes. The utility model comprises pipe joints which are spliced end to end; the pipe joint comprises an outer shell and an inner shell which are coaxially arranged in a sleeved mode, and the inner wall of the outer shell is attached to the outer wall of the inner shell. A first annular groove surrounding the axis of the outer shell is formed in the middle section of the inner wall of the outer shell, second annular grooves surrounding the axis of the outer shell are formed in the two ends of the inner wall of the outer shell, and one side of each second annular groove penetrates through the end of the outer shell. A cooling filling cavity is formed between the outer wall of the inner shell and the first annular groove in a surrounding mode, the outer wall of the inner shell and the two second annular grooves form a first sealing filling cavity and a second sealing filling cavity respectively, and the first sealing filling cavity and the second sealing filling cavity of the other pipe joint are spliced to form a sealing cavity. The purposes that the air pipe can be conveniently assembled, the sealing performance is excellent, and meanwhile the air pipe has low specific friction resistance and good flame retardant performance are achieved.

The invention belongs to the technical field of ceramic connection, and discloses a silicon carbide pipe sealing connecting piece for laser-assisted high-entropy glass connection and a preparation method and application thereof. According to the method, silicon oxide, aluminum oxide, titanium oxide, iron oxide and rare earth oxide which are equal in mole are subjected to planetary ball milling, rotary evaporation, drying and sieving to prepare solder powder. And slurry obtained by mixing an isobutylene maleic anhydride polymer 104 aqueous solution and solder powder is added from the other end assembled by the silicon carbide cladding tube and the end plug, and a to-be-connected piece is obtained. And placing the to-be-connected piece in laser equipment, heating the connection part through laser in different atmospheres until the connection part is molten, and rapidly cooling to obtain the high-entropy glass connected silicon carbide pipe sealing connection piece. The connecting layer of the connecting piece is compact, the connecting piece is tightly combined with the silicon carbide cladding pipe and the end plug of the silicon carbide cladding pipe, the connecting piece has good corrosion resistance and sealing performance, high mechanical strength is kept at 800 DEG C, and the connecting piece can be applied to the field of silicon carbide ceramic cladding end plug sealing.

A connector includes a connecting body with a fluid passage at least part way therethrough, and a seal is provided with an outer portion of a fluid tube. A cartridge proximate to the connecting body has a hollow portion therethrough. A grab part has at least one tooth to retain the fluid tube and is between the cartridge and the seal. A demount part within the hollow portion moves the teeth to allow release of the fluid tube. A latch is located on one of the connecting body or a sleeve covering at least part of the cartridge or the connecting body. A mating catch is located on the other of the sleeve or the connecting body, and engagement of the latch with the catch connects the sleeve to the connecting body and helps restrain cartridge movement.

To provide a technology capable of removing static electricity from the entire fluid while keeping pressure loss of fluid in a pipe low.SOLUTION: A static eliminator is an instrument used to remove static electricity from fluid in a pipe, and comprises a static elimination rod. The static elimination rod is made of conductive resin, is a member that does not allow fluid to pass through, is grounded, and is arranged in a flow path in the pipe so as to intersect with a center part of the flow path. The static elimination rod includes a cavity at a position where it intersects with the center part of the flow path. The cavity passes through the static elimination rod parallel to a direction of the flow path.SELECTED DRAWING: Figure 3

The utility model provides a multi -section type prevents and arranges smoke air pipe, including galvanized air pipe, the both ends of galvanized air pipe are installed and air pipe fixed end board no.

The utility model belongs to the technical field of automobile pipeline air tightness inspection, and particularly relates to automobile pipeline air tightness inspection equipment which comprises an inflator with moving wheels, and a first joint and a second joint which are used for plugging two ends of an automobile pipeline are arranged on the inflator. The first connector and the second connector are each provided with an annular air bag used for expansion sealing, a first inflation pipe and a third inflation pipe which are used for connection are arranged between the two annular air bags and the inflator, and an inspection area used for air tightness inspection is formed among the first connector, the second connector and the automobile pipeline. The annular air bags are additionally arranged on the first connector and the second connector, the first connector and the second connector can be rapidly and stably clamped at the end of the automobile pipeline through the annular air bags, the speed of connecting equipment with the automobile pipeline is increased, and meanwhile the sealing performance of connection between the connectors and the automobile pipeline is improved.

To provide a medical tube for a humidification system for respiration.SOLUTION: A medical tube comprises a tail to connect an embedded wire to an electrical component. The tail may include a flattened portion and an exposed portion to facilitate attachment of the medical tube to an electrical component. The tail may include a second flattened portion. One or more wires, such as a heater wire or a sensor wire, may be embedded in the medical tube. The medical tube may include a connector that comprises a printed circuit board to which the one or more wires are attached. The connector may include features to support the printed circuit board, aid in assembly of the one or more wires to the connector, and protect electrical components against liquid ingress.SELECTED DRAWING: Figure 1

This application discloses a prefabricated installation structure for metal ducts, belonging to the technical field of pipe connection structures. It provides a prefabricated installation structure for ducts with better connection flatness, including a bridging component connecting adjacent ducts. The bridging component includes an inner frame and an outer frame. A narrowing frame is provided between the outer wall of the inner frame and the inner wall of the outer frame. Embedded grooves are formed between the two end faces of the narrowing frame and the outer walls of the inner and outer frames. A pressing component is fixedly connected to a pair of opposing outer sides of the outer frame. The duct has an outwardly extending side plate on the side perpendicular to the pressing component. A snap-fit ​​component is fixedly connected to the outer frame on the side perpendicular to the pressing component. This invention, by providing a pressing component structure on opposing sides and applying pre-pressure, can better keep adjacent ducts in the same extension direction. Combined with the bridging component embedded in the duct end structure, the connection ends of the duct units can be kept flush, effectively reducing the light transmission probability at the connection point and effectively improving airtightness.

The utility model provides an oil pipe joint auxiliary installation structure which comprises a first joint mechanism, a second joint mechanism and an auxiliary installation mechanism, the first joint mechanism comprises a corrugated pipe, a first connector, a limiting cap, a first spring, a sealing block, a second spring, a ball body, a sealing block and a third spring, and the second joint mechanism is sleeved with the first joint mechanism. And an auxiliary mounting mechanism is arranged between the first connector mechanism and the second connector mechanism, and the position of the thread cone can be flexibly adjusted through the design of a limiting ring, a sliding rod and a fixing ring in the auxiliary mounting mechanism. According to different installation scenes and oil pipe directions, the relative position of the thread cone and the second connector can be accurately adjusted by sliding the position of the fixing ring on the sliding rod, installation operation is convenient, and the installation accuracy and efficiency are improved.

Disclosed is an isolator for an aircraft fuel tank, the isolator configured to isolate a conductive interior panel of the fuel tank from a conductive duct passing through the panel. The isolator comprises: a plurality of first attachment points for attaching the isolator to the panel; a plurality of second attachment points for attaching the isolator to the duct; and an aperture defined by an outer wall and extending from a first side of the isolator to a second side of the isolator, the aperture configured to receive the duct in use; wherein the isolator comprises a non-conductive material. Also disclosed is an isolation system, an aircraft and a method of isolating a conductive interior panel or an aircraft fuel tank from a conductive duct passing through the panel.

This application relates to the field of pipe connection technology, and in particular to a corrosion-resistant concentric pipe connector, including a support assembly, an adjustment assembly, a fixing assembly, and a connecting assembly. The support assembly includes a support plate; the adjustment assembly includes two adjustment rods, one end of which is slidably connected to the support plate; the fixing assembly includes two pushers for fixing the pipe; the connecting assembly includes two plug-in members, each corresponding to a pipe, and each plug-in member includes a connecting ring and two plug-in rings. The connecting ring is coaxially fixed to the pipe end, and the two plug-in rings are integrally coaxially located on the side of the connecting ring away from the pipe. The two plug-in rings are distributed from the pipe axis toward the side away from the pipe axis, with the plug-in ring closer to the pipe axis being the inner ring and the plug-in ring farther from the pipe axis being the outer ring. A plug-in gap is left between the two plug-in rings for the outer ring on another pipe to be plugged in, and the longitudinal section of the plug-in ring is wavy. This application has the effect of improving the convenience of pipe connection.

A straight-through type reducer pipe joint comprises a fluid sensor and a reducer pipe joint body, a plurality of threaded holes are formed in the bottom of the fluid sensor, the reducer pipe joint body is fixedly connected to the bottom of the fluid sensor, the reducer pipe joint body comprises a shell, an inflow pipe, an outflow pipe and a flow cell, and a first mounting hole is formed in the top of the shell; a plurality of first positioning holes in one-to-one correspondence with the threaded holes are formed in the periphery of the first mounting hole, a fluid sensor bottom end is arranged in the first mounting hole, an inflow hole and an outflow hole are symmetrically formed in the two sides of the shell, the inflow pipe is clamped and fixed to the inflow hole, the outflow pipe is clamped and fixed to the outflow hole, and an opening is formed in the top end of the flow cell; a plurality of second positioning holes in one-to-one correspondence with the first positioning holes are formed in the periphery of the top end of the flow cell, and a partition plate is arranged in the middle of the inner bottom of the flow cell. And more stable connection can be achieved through bolting and fixing of the pipeline and the shell, the sealing performance is effectively improved, disassembly is convenient, and the service life of the pipeline is prolonged.

A welding-free sealing pipeline rapid installation assembly comprises a pipeline base body, first butt joint pipelines, second butt joint pipelines, third butt joint pipelines and sealing baffles, the first butt joint pipelines are fixed to the two sides of the pipeline base body, the second butt joint pipelines are fixed to the outer sides of the first butt joint pipelines, and the third butt joint pipelines are fixed to the outer sides of the second butt joint pipelines. The first butt-joint pipeline, the second butt-joint pipeline and the third butt-joint pipeline are connected through the transition pipelines, and the sealing baffles are fixed to the first butt-joint pipeline, the second butt-joint pipeline and the third butt-joint pipeline. Due to the fact that the three kinds of pipeline butt-joint openings with different diameters are arranged, butt-joint of pipelines with different diameters can be met, the sealing baffles are arranged at the butt-joint openings, friction force between the butt-joint pipelines and the installation assembly can be increased, and sealing performance is improved at the same time.

The utility model discloses a bell and spigot connecting device for flue gas ducts. The bell and spigot connecting device comprises a first flue gas duct, the second flue gas duct is arranged at the top of the first flue gas duct; the connecting mechanism is arranged in the first flue gas duct, the connecting mechanism is used for enabling the second flue gas duct and the first flue gas duct to be connected in a socket and spigot joint mode, the first flue gas duct and the second flue gas duct are tightly connected, the connecting mechanism comprises a connecting part, and the connecting part is attached to the inner wall of the first flue gas duct; and the positioning part is positioned on the side part of the connecting part. According to the utility model, the steel wire mesh lining, the tin soldering layer and the iron sheet belt are mutually matched, the steel wire mesh lining is integrally poured in the first smoke and air duct by adopting a mold, and the iron sheet belt is inserted into the second smoke and air duct, so that smoke cannot directly flow along a joint, and the joint tightness can be ensured by adopting the socket-and-spigot connection mode; the joint plugging measures are reduced, the installation precision is improved, the process is easy and convenient to construct, and the joint plugging procedure can be omitted.

Air distribution box (1), comprising a box-like body (2) which has a first opening (7) for access for at least one flexible pipe (8) for ducting the air flow, and a pair of plates (9a, 9b), opposite each other and able to slide with respect to the box-like body (2), each one comprising a flange (17a, 17b) for coupling to the flexible pipe (8); the pair of plates (9a, 9b) comprises first means, hidden from view, for locking / release (14a, 14b, 14c, 14d) which interact with second means for temporary grip (15a, 15b, 15c, 15d) which are provided and partially hidden from view on the box-like body (2) for the activation at desired and distinct presettable positions of the pair of plates (9a, 9b) with respect to the box-like body (2). Each one of the pair of plates (9a, 9b) is associated with a handle (16a, 16b) which can be gripped by the user.

An operator is enabled to easily identify the normal attachment direction of a ground clip and set the ground clip in a correct direction. Provided is a hose attachment structure in which a ground clip is attached over a grounded electroconductive pipe and a flexible hose inserted onto an outer face of the electroconductive pipe, wherein the ground clip includes a coil part that is attached to the outer face of the electroconductive pipe and an outer peripheral surface of the flexible hose and a pair of pinch parts that protrudes from both end parts in an axial direction of the coil part and faces each other, and one pinch part among the pair of pinch parts has an asymmetrically-shaped indicator part having directivity in the axial direction of the coil part.

The utility model discloses a metal composite low-evapotranspiration female joint, which belongs to the technical field of pipeline connecting parts and is characterized by comprising a joint main body, the rear end of the joint main body is made of metal materials, and the front end of the joint main body is made of plastic materials. The rear end of the connector is made of metal materials, the front end of the connector is made of plastic materials and is integrally formed in an injection mode, the metal materials have low air permeability and can effectively block evapotranspiration of media, the evapotranspiration phenomenon caused by the fact that the media penetrate through a plastic shell like a traditional full-plastic connector is avoided, meanwhile, the front end of the connector is made of the plastic materials, and on the premise that basic functions are guaranteed, the connector is convenient to use. The overall weight of the connector body is reduced, the problem that part of metal connectors are too heavy is solved, the integrated injection molding technology enables the structure of the connector body to be more stable, the risk of medium leakage caused by gaps possibly generated by splicing of different materials is reduced, and the reliability and durability of the connector body are improved.

The invention relates to a connecting and fitting piece for a corrugated hose with a sleeve-shaped base body, which has at least one locking element for the corrugated hose. A tubular seal rests against the inner surface of the base body.To ensure that the received end of the corrugated hose is adequately sealed via the seal in the base body, the tubular seal has at least one external projection on its outer surface and an internal projection on its inner surface associated with this external projection, wherein the external projection is associated with an opening in the base body and the external projection has such a length that, when the end face of the corrugated hose rests against the flange of the seal, the external projection is pressed radially outwards into the opening of the base body by its last corrugation, by the last corrugation pressing radially outwards onto the internal projection, causing the latter to protrude beyond the outer surface of the base body.

A medical tube comprises a tail to connect an embedded wire to an electrical component. The tail may comprise a flattened portion and an exposed portion to facilitate attachment of the medical tube to an electrical component. The tail may comprise a second flattened portion. One or more wires, such as a heater wire or a sensor wire, may be embedded in the medical tube. The medical tube may comprise a connector that comprises a printed circuit board to which the one or more wires is attached. The connector may comprise features to support the printed circuit board, aid in assembly of the one or more wires to the connector, and protect electrical components against liquid ingress.

The utility model discloses a thermal power plant boiler soot blower pipeline connecting structure which comprises a soot blower pipeline and a boiler pipeline, the soot blower pipeline is arranged on one side of the boiler pipeline, the outer wall of one end of the soot blower pipeline is communicated with a variable-diameter pipeline in a welding mode, the section of the variable-diameter pipeline is of an isosceles trapezoid structure, and the section of the variable-diameter pipeline is of an isosceles trapezoid structure. A rubber pad is bonded to the outer wall of the variable-diameter pipeline, the thickness of the rubber pad is 5 mm, and a steel wire is embedded in the rubber pad. The innovative design that the cross section of the variable-diameter pipeline is in the shape of the isosceles trapezoid is adopted, the unique structure endows the connecting structure with strong adaptive capacity, after the variable-diameter pipeline is inserted into the boiler pipeline, the rubber pad adhered to the outer wall of the variable-diameter pipeline can be tightly extruded with a port of the inner wall of the boiler pipeline, and the variable-diameter pipeline can be in butt joint with boiler pipelines with different calibers. The universality and the market adaptability of the product are greatly improved, and the installation limitation and the cost caused by the caliber difference of the boiler pipeline are reduced.

A connector for connecting a gas pipe and a heating component of a wire bonder includes a first connection end for connecting the connector to the heating component, and a second connection end for connecting the connector to the gas pipe. A heat-insulation tube is connected between the first connection end and the second connection end. The heat-insulation tube is made of a heat-insulation material and configured to insulate or reduce heat transfer between the first connection end and the second connection end. The connector may further include a first fastening sleeve for fastening the connection between the first connection end and the heat-insulation tube, and a second fastening sleeve for fastening the connection between the second connection end and the heat-insulation tube.

The utility model discloses a Y-shaped corrosion-resistant gas conveying pipe which comprises a pipe body, the pipe body comprises a main pipe section and a V-shaped pipe section, and the main pipe section is connected with the V-shaped pipe section; one end of the main pipe section is connected with a pipe joint, the pipe joint comprises a middle end, a necking end and a reducing end, the middle end is arranged between the necking end and the reducing end, the diameter of the largest part of the reducing end is larger than the inner diameter of a pipe opening of the main pipe section, and the diameter of the smallest part of the reducing end is smaller than the inner diameter of the pipe opening of the main pipe section; the inner diameter of the outer sealing sleeve is matched with the outer diameter of a pipe opening of the main pipe section, and the outer sealing sleeve is welded and fixed to the middle end. The gas pipe joint is novel in structure, good in sealing performance, capable of effectively preventing gas from leaking from the joint of the pipe body and the pipe joint, and reliable in use.

The stainless steel gate valve convenient to install comprises a control valve, a connector and a connecting pipe, the bottom of the control valve is fixedly connected with the top of the connector, the two sides of the connector are movably connected with the inner side of the connecting pipe, and the inner side of the connecting pipe is fixedly connected with a connecting block. According to the utility model, through the arrangement of the connecting grooves and the connecting blocks, when a user needs to connect the connector with a connecting pipe, the connecting blocks on the inner side of the connecting pipe are aligned with the connecting grooves on the outer side of the connector, and then the connecting pipe is moved towards the direction of the connector, so that the connecting blocks are completely moved into the connecting grooves; the problems that a stainless steel gate valve is not provided with a structure facilitating rapid connection between a user and a pipeline, the user still needs to use a large number of bolts to fix the stainless steel gate valve, a large amount of time is needed to fix the bolts and a flange plate, and the situation that alignment is difficult to happen easily are solved. Therefore, the mounting efficiency of the gate valve is influenced.

The utility model discloses a multi-caliber fire fighting truck water suction pipe connector. Belongs to the technical field of fire-fighting truck water suction pipes. The technical key points are as follows: the fire-fighting pipe comprises a pipe body; one end of the pipe body is in threaded connection with a male joint connected with a fire-fighting truck; the other end of the pipe body is in threaded connection with a small-caliber joint for connecting a water suction pipe, and the outer side of the front end of the small-caliber joint is in threaded connection with a large-caliber joint with a larger diameter; the multi-caliber fire fighting truck water suction pipe connector is simple in structure and suitable for fire hydrant connectors with various calibers. A water suction pipe is connected to the fire-fighting truck.

The utility model relates to the technical field of composite steel pipes, and discloses a multi-metal composite steel pipe convenient to install, which comprises a steel pipe main body, an inner layer metal pipe, a middle transition layer and an outer layer metal pipe, the butt-joint assembly comprises a butt-joint inner ring and a butt-joint outer ring which are integrally formed and arranged at the two ends of the steel pipe body respectively, a plurality of positioning protruding strips are arranged on the outer wall of the butt-joint inner ring, positioning grooves are formed in the inner wall of the butt-joint outer ring, and the joint of the butt-joint inner ring and the steel pipe body and the end, away from the steel pipe body, of the butt-joint outer ring are chamfers; the reinforcing structure comprises a plurality of annular reinforcing ribs and spiral reinforcing ribs, the annular reinforcing ribs are arranged on the outer wall of the steel pipe body, the spiral reinforcing ribs are arranged between the annular reinforcing ribs, and the two ends of the spiral reinforcing ribs extend to be connected with the annular reinforcing ribs on the two sides respectively. The utility model has the advantages that the integral linkage property of the outer wall reinforcing ribs is good, the tensile property is improved, the adaptability of the butt joint part of the two pipes is good, and the deflection phenomenon is not easy to occur.

The utility model relates to the technical field of corrugated drainage pipes, and discloses a double-layer reinforced composite corrugated drainage pipe which comprises a pipeline outer layer, a plurality of fixing frames are fixedly connected to the left side of the outer wall of the pipeline outer layer, knobs are rotationally connected to the inner walls of the fixing frames, and buckle assemblies are arranged on the outer walls of the knobs and used for disassembling and assembling pipelines. The pipeline inner layer is fixedly connected to the inner wall of the pipeline outer layer, sealing rings are fixedly connected to the two sides of the inner wall of the pipeline inner layer, the pipeline outer layer comprises a protection layer and a structure enhancement layer, the pipeline inner layer comprises a fluid conveying layer and a corrosion-resistant layer, and the buckle assembly comprises a mounting plate fixedly connected to the right side of the outer wall of the pipeline outer layer. According to the utility model, the installation can be completed by inserting the installation plate into the fixed frame and rotating the knob, the operation is simple, the installation cost is low, the physical exhaustion and the operation difficulty of constructors are reduced, the installation efficiency is improved, and the installation and maintenance costs are reduced at the same time.