273results 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 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.

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.

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 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.

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 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 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 invention relates to the technical field of fluid conveying, and discloses a double-channel fluid connecting device which is characterized in that a fixing part is provided with a first pipeline and a second pipeline; the first pipeline is provided with a first butt joint opening, the second pipeline is provided with a second butt joint opening, and the second butt joint opening is coaxially arranged in the first butt joint opening in a sleeved mode. A first annular channel is formed between the second butt joint port and the first butt joint port; the movable part is provided with a third pipeline and a fourth pipeline; the third pipeline is provided with a third butt joint port, the fourth pipeline is provided with a fourth butt joint port, and the fourth butt joint port is coaxially sleeved with the third butt joint port; a second annular channel is formed between the fourth butt joint port and the third butt joint port; one path of fluid is transmitted through the second pipeline, the second butt-joint opening and the fourth butt-joint opening; and the other path of fluid is conveyed through the first pipeline, the first annular channel, the second annular channel and the third pipeline. Rapid butt joint of two paths of fluid is achieved, the two paths of butt joint faces are coaxially designed, and the butt joint precision requirement is lowered.

The utility model discloses a PCCP (prestressed concrete cylinder pipe) connecting structure which comprises pipe bodies, the two ends of each pipe body are respectively provided with an inserting part and a socket part, the inserting parts and the socket parts on the two pipe bodies which correspond to each other end to end are inserted and correspond to each other, sealing rings are arranged on the outer sides of the inserting parts, and sealing rings are arranged on the outer sides of the socket parts. Fixing parts and pressing parts corresponding to the fixing parts are arranged at the two ends of each pipe body respectively, the number of the pressing parts is multiple, and the pressing parts are detachably connected with the fixing parts on the adjacent pipe bodies. The pipeline connecting structure has the beneficial effects that the fixing pieces and the pressing pieces at the two ends of the pipe body are combined, the multiple pressing pieces enable two sections of pipelines to be stably connected in a detachable connection mode, pressure can be gradually applied in the later use process, and the tightness and long-term sealing of pipeline connection are guaranteed.

The utility model discloses an interface converter which comprises a first interface part and a second interface part, and two ends of the first interface part are respectively provided with a first connecting end and a second connecting end which are communicated with each other; a second connector part is connected to the first connector part in a sleeving mode and can move and be locked in the axial direction of the first connector part, and a third connecting end is formed at one end of the second connector part; the movement path of the third connecting end has a first state in which the second connecting end extends out of the third connecting end and a second state in which the second connecting end retracts to the third connecting end, and the third connecting end and the second connecting end are matched with different interface models; according to the device, quick switching among various interfaces can be realized, the replacement time is effectively shortened, and the water supply efficiency is improved.

The utility model belongs to the technical field of pipe fittings, and particularly relates to a reinforced compression joint metal pipe fitting and a connecting structure, the metal pipe fitting comprises a pipe fitting body used for being connected with a pipe, at least one end of the pipe fitting body is sequentially provided with a first connecting part and a second connecting part, the first connecting part is provided with at least one sealing ring groove, and the second connecting part is provided with at least one sealing ring groove. A sealing ring is arranged in the sealing ring groove, and a clamping piece is arranged on the second connecting part. An annular groove is formed in the pipe, and the annular groove is matched with the clamping piece to be used for improving the connection firmness of the pipe fitting body and the pipe; the problems that traditional clamping and pressing type connection is poor in sealing performance, and a pipe fitting and a pipe are prone to falling off are solved, and the anti-drawing strength and the sealing performance of pipeline connection are effectively improved.

The invention relates to a connection device for an internally cooled cable, in particular a high-voltage cable. The invention further relates to a cable system with an internally cooled cable and such a connection device. An embodiment of the connection device (100) comprises: an outer cable receptacle (160) for connection to the internally cooled cable (1000); and an inner, at least partially tubular, hose receptacle (120), in particular a capillary, arranged at least partially in the outer cable receptacle (160), for receiving at least a section of a cooling hose (1200) arranged in the internally cooled cable (1000).

A female end assembly is provided, including a female end used to mate, by means of plugging, with a male end forwards in a plugging direction; a connecting seat. The female end and the connecting seat are connected by centering structures, such that when the female end is subjected to an acting force perpendicular to the plugging direction, the centering structures can elastically deform to move the female end relative to the connecting seat in a direction perpendicular to the plugging direction; and a mounting seat, the connecting seat and the mounting seat are connected by means of elastic devices capable of elastically deforming in the plugging direction, such that when the female end is subjected to a backward acting force in the plugging direction, the elastic devices can elastically deform to make the connecting seat move relative to the mounting seat in plugging direction.

The utility model relates to the technical field of pipeline joints, in particular to a same-diameter and different-diameter hose joint capable of being quickly connected, which comprises a tubular body, a lug boss, an extrusion part and two nuts, a first hose inserting groove for inserting a hose is formed in the end face of the tubular body, an extrusion groove for inserting an extrusion piece is formed in the end face of the end, away from the first hose inserting groove, of the protruding part, and the extrusion piece is driven to slide towards the groove bottom of the extrusion groove when the nut is screwed down. The first hose inserting grooves are formed in the two ends of the tubular body, the protruding parts are arranged on the outer side faces of the two ends of the tubular body, the extruding grooves are formed in the protruding parts, the extruding pieces are arranged to be inserted into the extruding grooves, the nuts and the blocking pieces are arranged to push the extruding pieces, the extruding grooves are opened through the extruding pieces, and then the first hose inserting grooves and hoses are extruded and fixed. When the hose is connected, the hose can be fixed only by inserting the hose into the second hose slot and then tightening the nut, so that the quick connection of the hose is realized.

This invention relates to the field of composite pipe technology, and discloses a self-healing carbon fiber prestressed steel cylinder concrete (FRP) composite pipe and its manufacturing process. The composite pipe comprises, from the inside out, a photocured FRP inner anti-corrosion layer, a spiral welded steel cylinder, a self-healing concrete core, a three-dimensional CFRP prestressed layer, a potential equalization layer, and an FRP sand-filled outer protective layer. The manufacturing process includes the preparation of the spiral welded steel cylinder and socket, anchor installation, vertical casting and curing of the self-healing concrete core, fabrication of the three-dimensional CFRP prestressed layer, coating of the potential equalization layer, fabrication of the FRP sand-filled outer protective layer, and fabrication of the photocured FRP inner anti-corrosion layer. This invention uses a cement-based penetrating crystallizing material and Bacillus-calcium lactate microcapsules to form a composite self-healing system, achieving chemical-biological synergistic repair of cracks; the simultaneous laying of circumferential and longitudinal carbon fibers to form a three-dimensional prestressed structure significantly improves axial load-bearing capacity; and the graphene-ceramic filler potential equalization layer effectively inhibits galvanic corrosion.

The invention relates to a method (100) for manufacturing a multilayer composite article (10) with an integrated conductor arrangement (20). It is proposed to position a displacement body (30) on a carrier layer (12) of the multilayer composite article (10) on which the conductor arrangement (20) is positioned, such that when the cover layer (13) is applied to the carrier layer (12) in a predetermined layer thickness (a), a section of the cover layer (13) applied to the displacement body (30) is so thin that the position of the displacement body (30) in the multilayer composite article is haptically and / or visually discernible from the outside.

The utility model discloses a connecting device for connecting pipelines with different diameters, which relates to the technical field of pipeline connection and comprises a connecting piece, a large-diameter pipe fixing ring is rotatably mounted on the outer ring of the connecting piece, a small-diameter pipe fixing ring is rotatably mounted on the inner ring of the connecting piece, a large-diameter pipe is arranged on the outer side of the large-diameter pipe fixing ring, and a small-diameter pipe is arranged on the outer side of the small-diameter pipe fixing ring. A small-diameter tube is arranged on the inner side of the small-diameter tube fixing ring; according to the utility model, the fixing rings with different sizes can be selected according to different pipe diameters to ensure that the fixing rings are attached to the inner walls of corresponding pipes, the flexibility of the device is improved through the combination of the various fixing rings, and the pipelines with different pipe diameters can be conveniently connected.

The utility model discloses a kind of outer braiding silica gel tube structures in the field of silica gel tube, with silica gel inner tube as foundation, outer side is successively coated with antistatic layer and braiding layer, antistatic layer can promptly guide away electrostatic that pipe body surface accumulates, avoid static harm;Braiding layer then enhances the overall compressive strength, effectively resist external pressure, prevent silica gel tube deformation.In the end of silica gel tube, metal sleeve ring is connected and covers pressure in braiding layer outer side, can prevent end appear warped edge, delamination etc. Phenomenon, guarantee the structural integrity of silica gel tube.Simultaneously, the outer thread body of metal sleeve ring outer side and the internal thread body of metal head clamping groove inner wall mutually cooperate, realize firm connection;Metal head is equipped with grounding end, can form static electricity release passage, further strengthen the antistatic performance of this silica gel tube.This structure is in antistatic, pressure resistance and structural stability aspect with ingenious stratified design and end connection structure, and it is applicable to the application scene of higher requirement to electrostatic protection and structural strength.

To provide a fuel cell exhaust gas treatment device capable of reducing the concentration of target gas in exhaust gas discharged from a fuel cell.SOLUTION: A fuel cell exhaust gas treatment device according to the present invention includes a piping member (100) that exhausts exhaust gas from a fuel cell stack (20), a gas guide portion (200) that is provided in the piping member (100) and guides target gas contained in the exhaust gas to the outside of the piping member, and a guide pipe (300) that is spaced apart from the gas guide portion and is provided so as to cover the gas guide portion.SELECTED DRAWING: Figure 2

The utility model discloses an oil pressure and air pressure conversion device of a five-axis rotary body, which is applied to the field of industrial automation and comprises a gas-liquid converter body, an output shaft is arranged at the top of the gas-liquid converter body, and a top plate is bolted at the top of the output shaft; by arranging the telescopic cover on the surface of the output shaft and protecting the output shaft, the purpose of a protection function can be achieved, the cleanness of the output shaft is ensured, the service life is prolonged, the clamping head is separated from the clamping hole by rotating the rotating ring, the telescopic cover is taken down, the telescopic cover is convenient to maintain, the practicability is improved, and the service life is prolonged. By means of the mode that the sliding barrel is moved to enable the trapezoidal block to move, the trapezoidal block moves to enable the clamping block to be disengaged from the clamping groove under the action of the third spring, and the connecting pipe is taken down from the connector, the purpose of conveniently assembling and disassembling the pipeline can be achieved, the workload is reduced, and the working efficiency is improved.

The utility model relates to a stepped self-locking sealed solid-wall top-pull tube, which belongs to the technical field of top-pull tubes and comprises a tube body structure, the tube body structure comprises a first tube body and a second tube body, a stepped structure is arranged outside the first tube body, and a self-locking structure is arranged outside the first tube body; the step structure comprises a first step arranged outside the first pipe body, and a second step is arranged on the side, away from the first step, of the first pipe body. The self-locking structure comprises a mounting groove formed in the outer portion of the first pipe body, and the outer portion of the mounting groove is sleeved with a three-peak rubber ring. According to the stepped self-locking sealing solid-wall top-pull pipe, after the first pipe body and the second pipe body are connected in place, the three peak parts of the three-peak rubber ring are tightly attached to the connecting face of the first pipe body and the connecting face of the second pipe body respectively, multiple sealing is formed, the sealing performance of the connecting position of the first pipe body and the second pipe body is remarkably improved, leakage is effectively prevented, and the service life of the pipe is prolonged. And the advantage of good sealing performance is achieved.

The present invention relates to a downflow element (200) having a first flow opening (205) and a second flow opening (206), wherein the first flow opening (205) is arranged relative to the second flow opening (206) at an angle of 45°≤α≤135°, preferably at approximately 90°, such that at least the average flow direction of fluid entering the first flow opening (205) and exiting the second flow opening (206) or at least the average flow direction of fluid entering the second flow opening (206) and exiting the first flow opening (205) is deflectable. The downflow element (200) is characterized in that, on the inner side (215, 216) between the first flow opening (205) and the second flow opening (206), it includes at least one damper material receiver (201) and at least one damper (214) inserted into the damper material receiver (201). The invention further relates to corresponding components.

A vehicle exhaust system having a first pipe, a second pipe, and an integral hood. The first pipe extending between a first end and a second end. The second pipe extending between a third end and a fourth end. At least a portion of the first pipe being positioned within the second pipe such that the second end is provided downstream of the third end. The integral hood is formed between the second end and the third end.

The present invention relates to a connection device between two microchannels or two millichannels of two fluid elements, comprising complementary means for holding the device, having at least one of the two fluid elements. The present invention also relates to a microfluidic or millifluidic chip, comprising a connection device between the microchannels or millichannels of the chip and the microchannels or millichannels of the fluid element. Finally, the present invention relates to a connection device between two microchannels or two millichannels of two fluid elements, comprising complementary means for holding the device, having at least one of the two fluid elements.