1283results about "Pipe connection arrangements" patented technology

A fiber reinforced laminate pipe joint can include a first pipe, a second pipe, where the first pipe and the second pipe can be fiber reinforced laminate pipes, and a pipe joint insert. The pipe joint insert can be partially inserted inside the first pipe and can be partially inserted inside the second pipe. The pipe joint insert can be bonded to the first pipe and the second pipe, where the pipe joint insert can include a fiber reinforced laminate, where a bonding agent in the fiber reinforced laminate of the pipe joint insert can be distinct from a bonding agent used to bond the pipe joint insert to the first pipe.

The invention relates to the technical field of pipe fitting connection, in particular to a plastic pipe fitting connecting structure which comprises a connecting mechanism used for connecting a first pipe fitting and a second pipe fitting, and annular threaded sections are arranged on the outer side of the first pipe fitting and the outer side of the second pipe fitting. According to the connecting mechanism, the threaded ring is in threaded connection with the pipe fitting; the locking piece is adopted for achieving mutual locking matching between the connecting piece and the fixing piece, the connecting reliability of the connecting piece and the fixing piece is improved, the pressing piece and the locking piece are matched to extrude the sealing gasket, the better sealing effect is achieved, the fixing piece is precisely limited through the limiting piece, and the sealing effect is improved. Meanwhile, the connecting stability of the two sets of connecting pieces is improved through mutual locking between the two semicircular hoop plates of the auxiliary piece, the overall stability of the connecting mechanism is synchronously improved, and the two pipe fittings are firmly and tightly connected together step by step under multi-stage mutual matching of the connecting pieces, the locking pieces, the fixing pieces, the locking pieces, the pressing pieces, the limiting pieces and the auxiliary piece.

The invention relates to the technical field of bamboo winding composite material pipelines, and discloses a bionic bamboo joint connector of a bamboo winding pressure pipeline and a processing technology of the bionic bamboo joint connector, the bionic bamboo joint connector is arranged at the connecting part of two sections of axially aligned bamboo winding pipelines, and the bionic bamboo joint connector sequentially comprises an inner lining layer and an outer lining layer from inside to outside, the embedded steel bar reinforcing layer consists of a reinforcing material and embedded steel bar glue; the film covering restraint layer is composed of fiber reinforced cloth and impregnating resin; the socket fastening layer is composed of a metal fastening piece which is connected with the two pipes in a bridging mode. A protective layer is poured, and the whole connector is wrapped with polymer modified cement mortar; the invention further provides a processing technology of the bionic bamboo joint connector. The processing technology comprises the following six steps of pretreatment, lining welding, embedded steel bar reinforcement, film covering constraint, socket fastening and pouring protection. Through the composite structure of crossed truss type embedded steel bars, polymer modified mortar pouring and socket fastening, the connector obtains high connection strength, excellent anti-drawing performance and long-term durability.

The utility model belongs to the technical field of municipal pipeline maintenance and relates to a municipal pipeline maintenance device which comprises a first connecting pipe and a second connecting pipe, the outer side wall of the right end of the first connecting pipe is in threaded connection with an adapting pipe, and an inserting pipe is fixedly arranged on the right side wall of the adapting pipe. An annular inserting groove matched with the inserting pipe in an inserted mode is formed in the left side wall of the second connecting pipe, and a first sealing ring is arranged in the annular inserting groove. When the maintenance device is used, the left end of a first connecting pipe and the right end of a new HDPE pipe can be subjected to hot melting welding, the left end of the new HDPE pipe and a cutting opening of a left pipeline are subjected to hot melting welding, the right end of a second connecting pipe and a cutting opening of a right pipeline are subjected to hot melting welding, and an adapting pipe is connected between the right end of the first connecting pipe and the left end of the second connecting pipe; when the new HDPE pipe and the left pipeline are subjected to hot-melt welding and the second connecting pipe and the right pipeline are subjected to hot-melt welding, the new HDPE pipe and the second connecting pipe can be moved in the axial direction, hot-melt butt joint extrusion force at a left pipeline cutting opening and a right pipeline cutting opening can be ensured, and the structural strength of the hot-melt welding position can be ensured.

A fitting nut made of a resin material includes: a hollow, large-diameter tube portion having a female thread formed on its inner peripheral wall; and a small-diameter tube portion that is continuous to the large-diameter tube portion and having a hollow cylindrical shape with a smaller diameter than the large-diameter tube portion. The small-diameter tube portion includes, in the outer peripheral wall thereof, a plurality of engagement grooves that are depressed inwardly in the diameter direction of the small-diameter tube portion and extend along the longitudinal direction that is orthogonal to the diameter direction.

A grip ring includes a substantially frustoconical metal ring body defining a diameter that tapers from a first lateral end of the ring body to a second lateral end of the ring body opposite the first lateral end, the ring body further defining a first circumferential end, a second circumferential end opposite the first circumferential end, an inner surface defining a guide ring opening, and an outer surface opposite the inner surface; and a gap defined between the first circumferential end and the second circumferential end; wherein the ring body is configured to be compressed radially inward to reduce a width of the gap between the first circumferential end and the second circumferential end.

The utility model provides a steel-plastic conversion pipe fitting joint assembly, which relates to the technical field of pipe connecting structures, and comprises a connecting seat, a clamping and pressing mechanism is arranged outside the connecting seat, the clamping and pressing mechanism comprises four semi-circular blocks, one side surfaces, close to each other, of the two semi-circular blocks are respectively contacted with the upper surface and the bottom surface of the connecting seat, and the other side surfaces of the two semi-circular blocks are respectively contacted with the connecting seat. A rotating rod is rotationally connected into the connecting base, two sets of threaded grooves are formed in the outer surface of the rotating rod, the thread directions of the two sets of threaded grooves are opposite, two moving bases are slidably connected into the connecting base, and each moving base is in threaded connection with the rotating rod through the corresponding threaded groove. The side faces, close to each other, of the two semicircular blocks are fixedly connected with the upper surfaces and the bottom faces of the two movable bases correspondingly. And the two pipes are connected in a clamping and pressing mode, so that the connecting and detaching difficulty between the pipes is effectively reduced, and the use convenience of the pipe connecting mechanism is improved.

An irrigation fitting comprises a first fitting branch and a second fitting branch. The first fitting branch comprises a first planar region and a second planar region. The second fitting branch comprises a third planar region and a fourth planar region. The first planar region and the third planar region jointly comprise a first curved concave edge and a second curved concave edge. The second planar region and the fourth planar region jointly comprise a third curved concave edge and a fourth curved concave edge.

The invention provides an anti-impact modified high-density polyethylene anti-leakage pipeline connecting device, and relates to the technical field of pipeline connecting devices.The anti-impact modified high-density polyethylene anti-leakage pipeline connecting device comprises a connecting sleeve, the two side ends of the connecting sleeve are each provided with a positioning mechanism, and the positioning mechanisms are used for covering the ends of a polyethylene pipeline; according to the pipeline connecting sleeve, the end of the pipeline is prevented from being damaged due to collision and friction in the connecting process, meanwhile, the fitting precision of the sealing face and the outer wall of the pipeline is guaranteed, the pipeline is preliminarily guided by means of the matching relation between the clamping jaws and the groove bodies, and the coaxiality of the pipeline and the connecting sleeve is adjusted in real time; when the pipeline continues to be inserted into the second-stage positioning groove, the round-head clamping jaw is connected with the groove body in a clamped mode under the elastic effect of the metal elastic piece, at the moment, the second-stage positioning groove can effectively buffer the insertion impact force borne by the clamping jaw, the stress load of the metal elastic piece is dispersed, and the sealing effect of the pipeline is improved. And the elastic sheet is prevented from overload deformation and loss of elastic reset capability due to overexertion in one-time insertion.

The utility model discloses a silicon nitride ceramic lining elbow which comprises an elbow body, a silicon nitride ceramic inner pipe is fixedly embedded in the inner wall of the elbow body, two blocking rings are fixedly connected to the inner wall of the elbow body, and the two ends of the silicon nitride ceramic inner pipe are fixedly connected with the side faces, close to the silicon nitride ceramic inner pipe, of the two blocking rings respectively. Three annular limiting grooves are formed in the inner wall of the bent pipe body, and the inner wall of each annular limiting groove is fixedly connected with a positioning ring. According to the device, through the arrangement of the bent pipe body, the silicon nitride ceramic inner pipe, the annular limiting groove, the positioning ring and the plugging ring, the silicon nitride ceramic inner pipe can be effectively fixed and limited, the silicon nitride ceramic inner pipe is more stably installed in the bent pipe body, stable use of the elbow is facilitated, and through the cooperation of the arranged material guiding slope plate and the plugging ring, the material guiding slope plate is more stable. And the end of the silicon nitride ceramic inner pipe can be protected, the impact force borne by the silicon nitride ceramic inner pipe is reduced, and the elbow can be stably used for a long time.

The utility model discloses a reducing pipe joint, relates to the technical field of pipeline fittings, and aims to solve the problems that in the prior art, a small-caliber part of an existing reducing pipe joint is thick in pipe wall, more materials are consumed, raw materials are wasted during mass production, and the reducing pipe joint is not environment-friendly enough to use. A small-caliber connector and a large-caliber connector are arranged in the connector body, a material-saving groove is formed in the position of the small-caliber connector, an inner wall is arranged between the material-saving groove and the small-caliber connector, reinforcing ribs are arranged in the material-saving groove, a dredging through opening is formed in the connector body, and a right-angle connector is arranged on the outer side of the connector body. The right-angle connector and the connector body are of an integrated structure, a fastening reinforcing groove is formed in the connecting metal head, a penetrating hole is formed in one side of the fastening reinforcing groove, a connecting reinforcing groove and a sealing groove are formed in the connecting metal head, and the connecting reinforcing groove and the sealing groove are connected with the right-angle connector in an embedded mode.

An end fitting for connecting two sections of pipe to one another can comprise a first tubular member, and a second tubular member disposed coaxially about the first tubular member to delimit an annular gap therebetween for receiving an end portion of a pipe. A sleeve can be disposed coaxially about the first tubular member and within the annular gap such that a pressurised medium is receivable between the sleeve and one of first and second tubular members to move at least a portion of the sleeve radially and thereby clamp the end portion of the pipe between the first and second tubular members when received in the annular gap. The end fitting may have particular application in conveying oil and gas field fluids, including hydrocarbon fluids.

A pipe fitting (100) includes a tubular connecting part (101); the tubular connecting part being configured to be inserted into an expanded pipe end section (111) of a pipe (110) having a first circumferential intact sealing region (113) on the inner surface (112) of the pipe end section (111); the tubular connecting part comprising a first radially outwards extending circumferential sealing barb (105′) positioned for engaging, when in use, with the first circumferential intact sealing region during shrinkage of the pipe end section for forming a sealing between the pipe fitting and the pipe.

The present invention provides a molded article of a vinyl chloride-based resin composition excellent in mechanical properties such as tensile elongation at break while containing two or more kinds of calcium carbonate materials having different characteristics as a filler. The molded article of a vinyl chloride-based resin composition according to the present invention is obtained by blending a vinyl chloride-based resin and a filler. The filler includes a first calcium carbonate material and a second calcium carbonate material having different aspect ratios. The first calcium carbonate material is preferably a pulverized product of scallop shells.

The utility model discloses a high-impact-resistance continuous winding glass fiber reinforced plastic pipe which is characterized by further comprising a polyurethane strip which is wound between a lining layer and a structural layer and used for enhancing the impact resistance of a glass fiber reinforced plastic pipe body, and rubber ferrules are arranged at the two ends of the glass fiber reinforced plastic pipe body. Through the arrangement of the polyurethane strips, the stamping resistance of the glass reinforced plastic pipe body is improved, and the polyurethane strips are high in elasticity modulus, can quickly restore to the original shape after being stressed and have good elasticity and toughness, so that the glass reinforced plastic pipe body does not crack after being pressed and can quickly restore to the original shape; through the arrangement of the rubber ferrule, the situation that in the carrying process of the glass reinforced plastic pipe body, the end opening of the glass reinforced plastic pipe body is damaged due to collision, and consequently the connection with the pipe connector is affected is effectively prevented, and meanwhile the sealing performance of the connection with the pipe connector is further improved through the rubber ferrule.

A pipe belling process where a heated thermoplastic pipe end is forced over a sealing gasket on a forming mandrel, with the pipe being subsequently cooled to retain the gasket in an internal groove simultaneously formed in the pipe end. The sealing gasket is a two-component gasket with an elastic component and a plastic component. The elastic component is stretched over a portion of the plastic component during assembly with the plastic component acting as a belling ramp for the gasket during the subsequent pipe belling operation.

The utility model relates to the field of pipelines, and discloses a faucet pipeline which comprises a protective outer pipe, a soft inner pipe is inserted into the protective outer pipe in a sliding mode, a first connector is detachably arranged at one end of the protective outer pipe, and a second connector is detachably arranged at the end, away from the first connector, of the soft inner pipe. A rotating groove is formed in the end, close to the protective outer pipe, of the first connector, and the rotating groove is rotationally inserted into the surface of one end of the protective outer pipe. According to the utility model, the protective outer tube is made of polypropylene random copolymer, the flexible inner tube is made of polyvinyl chloride, and a certain amount of plasticizer is added when the flexible inner tube is manufactured, so that the softness of the flexible inner tube is increased, and when the flexible inner tube is applied to the fields of drinking water, machinery equipment, circuits and the like, the flexible inner tube can be prevented from being damaged. Due to the fact that the soft inner pipe is protected inside by the protection outer pipe, the safety of the soft inner pipe in the working process is improved through the protection outer pipe, and the service life of the soft inner pipe is prolonged.

The present application relates to the field of sealing connector, specifically to a non-metal pipe composite connector, comprising an inner sleeve; the inner sleeve comprises a first connecting section and a second connecting section which are symmetrically arranged; the first connecting section and the second connecting section are provided with external threads to be screwed with the internal threads of the non-metal pipe; a flange part is arranged between the first connecting section and the second connecting section; the flange part is made of elastic air-tight material and is configured to cover at least part of the outer surface of each non-metal pipe. The connecting end is stable and reliable, and the overall sealing performance is strong. The key problems such as weak bearing capacity of the connection, easy failure, loose connection with the connecting pipe and poor long-term sealing performance are solved.

A connection element for connecting lines for conducting a fluid, in particular of a fluid circuit of an air-conditioning system of a motor vehicle, is based on the object of specifying a connection element which has high rigidity and low weight and which allows a fluid-tight connection with low production costs. This object is achieved in that the connection element has an attachment means and a connection means, wherein the connection means is arranged in a recess in the attachment means.

The utility model relates to a steel belt reinforced spiral corrugated pipe which comprises two corrugated pipes, a connecting mechanism is arranged between the two corrugated pipes, the connecting mechanism comprises a first connecting ring, a second connecting ring and an inserting ring, the inserting ring is fixedly installed on one side of the first connecting ring, and an annular inserting groove is formed in one side of the second connecting ring. The inserting ring is inserted into the annular inserting groove, a mounting groove is formed between the inserting ring and the first connecting ring, a sliding plate is slidably mounted in the mounting groove, a clamping block is fixedly mounted on the upper side of one end of the sliding plate, a through hole is formed in one side of the inserting ring, the clamping block is located in the through hole, and an inserting groove is formed in the inner wall of the annular inserting groove. According to the connecting mechanism, when two corrugated pipes are connected, the clamping blocks are inserted into the grooves to fix the first connecting ring and the second connecting ring, so that the two corrugated pipes can be connected, and the working efficiency of a worker when the two corrugated pipes are connected is improved.

The utility model relates to the technical field of PVC (polyvinyl chloride) pipe fittings, in particular to an assembled PVC pipe fitting which comprises a middle piece, a plurality of pipelines and connecting assemblies, the middle piece is provided with a plurality of openings, the connecting assemblies are connected between the pipelines and the openings, the pipelines are communicated with one another, and the assembled PVC pipe fitting further comprises blocking pieces capable of blocking the openings. The plugging piece is detachably connected with the opening, a plurality of pipelines can be installed on the connector of the middleware through the connecting assembly according to the number of the pipelines needing to be connected, the opening, not needing to be connected with the pipelines, of the middleware is plugged through the plugging piece, and connection of the pipelines is completed. The pipelines are installed on the multiple openings in the middle piece, the openings without the pipelines are plugged through the plugging pieces, and the number of the connected pipelines can be adjusted.

An offset piping device for relocating a sewer stub-out for a urinal without damaging a finished wall includes a pipe having a first portion, a second portion, and a middle portion extending therebetween. The middle portion is angled relative to the first and second portions whereby the first portion is offset from the second portion. A flange is rotatably coupled to the second portion. The flange can be used to couple a urinal to a wall when the first portion is being coupled with a drainpipe for the urinal. Because the first portion is offset from the second portion, access for the drainpipe relative to the wall is adjusted.

A fitting nut (40, 42) made of a resin material includes: a hollow, large-diameter tube portion 170 having a female thread 178 formed on its inner peripheral wall; and a small-diameter tube portion 172 that is continuous to the large-diameter tube portion 170 and having a hollow cylindrical shape with a smaller diameter than the large-diameter tube portion 170. The small-diameter tube portion 172 includes, in the outer peripheral wall thereof, a plurality of engagement grooves 186 that are depressed inwardly in the diameter direction of the small-diameter tube portion 172 and extend along the longitudinal direction that is orthogonal to the diameter direction.

The utility model provides a novel protection device for a PE (Poly Ethylene) electric smelting sleeve, relates to the technical field of protection devices, and aims to solve the problems that the protection device cannot be conveniently connected with the PE electric smelting sleeve and the operation is tedious when the conventional protection device is used. The body is of a semicircular structure. The connecting piece is in contact with the main body; the contact part is mounted on the mounting part; the jacking part is connected with the connecting part; the screw rod is mounted in the threaded hole in the main body; the clamping groove A is formed in the mounting part; an inlaying block is mounted in the inlaying groove; the clamping groove B is formed in the connecting piece. A clamping groove A formed in the main body and a clamping groove B formed in the connecting piece can be matched with a protrusion on a PE electric smelting sleeve, and an embedding block is inserted into an embedding groove, so that it is guaranteed that the main body and the connecting piece are stably connected during installation, threaded holes in the main body and the connecting piece correspond to each other, the insertion accuracy of a screw is guaranteed, and the service life of the screw is prolonged. And the main body and the connecting piece are connected through the screw rod, so that the installation is more convenient.

The utility model discloses a flame-retardant plastic pipe capable of being switched in multiple directions, and particularly relates to the technical field of plastic pipes, the flame-retardant plastic pipe comprises a corrugated universal structure, a plastic hose, an interlayer and carbonized filler, the plastic hose is arranged in an inner cavity of the corrugated universal structure, and the carbonized filler is arranged in an inner cavity of the interlayer; according to the utility model, through the flexible characteristics of the corrugated universal structure and the plastic hose, the flexible joint can be flexibly switched in different directions, can be easily bent and adjusted in direction, adapts to a complex installation environment, can effectively disperse stress in a pipeline, and avoids stress concentration at the switched position, so that the risk of pipeline fracture or damage is reduced, and the service life of the pipeline is prolonged. Through the design of the interlayer and the carbonized filler, when a fire disaster occurs, the carbonized filler made of polyimide can form a protective carbonized layer on the outer surface of the pipeline under high-temperature combustion, flame spreading is prevented, flame spreading can be effectively delayed, and a certain heat isolation effect can be provided; the influence of external high temperature on fluid in the hose is prevented.

The butt joint device for the MPP corrugated pipe comprises a pipe body, a first connecting pipe is arranged on one side of the pipe body, a limiting ring is arranged on the outer wall of the first connecting pipe, a telescopic mechanism is detachably connected to the outer side wall of the limiting ring, and a second connecting pipe is fixedly connected to the side, away from the first connecting pipe, of the pipe body. The outer wall of the second connecting pipe is slidably connected with a connecting mechanism. The length of the equipment can be adjusted according to the thickness of a pipeline through the arranged telescopic mechanism, the practicability of the equipment is improved, the outer wall of a telescopic pipe is slidably connected with the inner wall of a limiting groove, and the inner wall of a second hoop is tightly attached to the outer wall of a limiting ring; according to the MPP corrugated pipe connecting device, the two MPP corrugated pipes can be connected more stably through the arranged connecting mechanism, the connecting sealing performance and stability are improved, the device is more convenient and rapid to install and detach, the number of bolts used in a traditional connecting mode is reduced, and the difficulty of disassembly, assembly and maintenance is lowered.

The utility model discloses a quick welding structure of a PTFE (Polytetrafluoroethylene) pipeline, which comprises a quick welding joint, the welding end of the PTFE pipeline is connected through the quick welding joint, the quick welding joint is matched with the welding end of the PTFE pipeline, the quick welding joint comprises a PFA (Polyfluoroalkoxy) block arranged along the periphery of the welding end of the PTFE pipeline, and an electromagnetic induction metal block is embedded in the PFA block. The quick welding joint comprises a first joint and a second joint, the first joint is arranged at one welding end of one PTFE pipeline, and the second joint is arranged at the welding end of the other PTFE pipeline; the first connector can be divided into a first assembling part and a second assembling part along the PTFE pipeline, at least one of the first assembling part and the second assembling part is inwards provided with a sliding block in the radial direction of the PTFE pipeline, and a sliding groove matched with the sliding block is formed in the outer side of the PTFE pipeline. The two connectors are positioned through the sliding grooves, melting of PFA is achieved in an electromagnetic induction heating mode, and therefore rapid welding of the PTFE pipeline is achieved.

A restrained pipe joining system for plastic pipe is shown comprising male and female pipe ends, the male pipe end having an external circumferential groove and the female pipe end having an internal recess which contains a circumferential casing element, the casing element receives a non-circular click fit restraint ring which engages the external circumferential groove of the male pipe end during the make-up of the pipe ends to form a sealed and restrained pipe joint.

An air extraction interface with a sealing structure, a polycarbonate vacuum plate, and a sunlight room are provided. The air extraction interface is an air extraction pipeline or an opening section. One end of the air extraction interface is connected to an air-extracted object. The sealing structure includes a first section located at the air extraction interface and a sealing section. Inner walls of pipelines of the air extraction interface where the first section is located fit each other or there is a gap between the inner walls. The pipelines of the air extraction interface are closed at a position where the sealing section is located. The sealing structure can easily seal the air extraction pipeline made of a hard material, so that air is prevented from entering internal vacuum space of the hard material in a sealing process.

To connect two members in piping equipment without any gap and without forming a stepped portion.SOLUTION: Piping equipment comprises: a main body 13 that is formed from a first fluororesin material and has a first boundary surface 13a; a joining member 15 that is formed from a second fluororesin material and has a second boundary surface 15a; and an intermediate member 17 that is formed from a third fluororesin material and is formed integrally with the joining member 15 via the second boundary surface 15a. The main body 13 has a recessed part 19 that opens at the first boundary surface 13a, and a cylindrical wall part 21 that is provided along the circumference of the opening of the recessed part 19 and protrudes by a length shorter than the thickness of the intermediate member 17. The first fluororesin material and the second fluororesin material are non-meltable fluororesin materials that are non-meltable at the melting point of the third fluororesin material. The intermediate member 17 is formed integrally with the main body 13 in a state where at least a tip of the cylindrical wall part 21 sinks in the intermediate member, and a space is formed by the intermediate member and the recessed part.SELECTED DRAWING: Figure 3