6740 results about "Pipe fitting" patented technology

An open end of a standard pipe fitting is enlarged in diameter to coaxially receive an O-ring and a retainer having a cylindrical surface. A plurality of locking teeth project from the cylindrical surface and are engageable with both the inner surface of the fitting and an outer surface of a pipe end inserted coaxially into the fitting open end. Each of the locking teeth have oppositely disposed edges facing obliquely inwardly and outwardly to engage both the pipe end and the fitting and resisting motion of the pipe end relatively to the fitting. In an alternate embodiment, a first plurality of teeth each have an edge facing obliquely inwardly of the fitting to engage the pipe end and resist motion tending to withdraw the pipe end from the fitting. A second plurality of teeth each have an edge facing obliquely outwardly of the fitting and resist motion tending to withdraw the retainer from the fitting.

A pipe fitting for coupling together opposed ends of two plastics pipes by fusion welding, the pipe fitting comprising an annular body having an inner cylindrical surface of plastics material surrounding a cylindrical cavity for receiving opposed ends of two plastics pipes to be coupled together, an electrically conductive coil provided in said inner cylindrical surface and surrounding the cylindrical cavity, the coil having opposed ends, a pair of terminals each connected to a respective end of the coil and provided on the body for connection to a source of controlled electrical power, and an annular reinforcing member disposed in the body and surrounding the coil, the annular reinforcing member having a grooved surface which interfaces the annular body, the grooved surface defining a plurality of axially facing surfaces.

A pipe fitting and associated piping joint assembly package allow re-use and repair of push-fit piping fittings and valves without damage to the fitting or valve elements or the pipe, and without coining, gluing or threaded engagement of parts. In one embodiment, the present invention includes a pipe fitting having first and second radial housing elements for receiving one or more sealing members and a fastening ring, respectively. The fastening ring can be a split fastening ring. The split fastening ring and the sealing members provided as part of the present invention are capable of being removed and/or replaced.

The invention discloses a polybutene alloy material and a preparation method thereof, and belongs to the field of polyolefin material, specifically relates to a polybutene alloy material and a preparation method thereof. The polybutene alloy material provided by the present invention comprises, by mass, 50-99% of poly-1-butene, 1-40% of polypropylene and 0-10% of a butane-propylene copolymer. Thepreparation method is characterized by: adopting a TiCl4/MgCl2 supported titanium catalyst for synthesis of the polybutene alloy material through a two-phase polymerization method. The polybutene alloy material provided by the present invention has a core-shell structure, and has advantages of the combination of the excellent impact resistance of the poly-1-butene, the heat resistance and creep property of the poly-1-butene, the low shrinkage rate of the poly-1-butene, the high modulus of the polypropylene, the high surface hardness of the polypropylene, the rapid shaping of the polypropylene, and the like, such that the polybutene alloy material can replace the partial use of the poly-1-butene and the polypropylene. In addition, the polybutene alloy material can be applicable for preparation of the pipe and the pipe fitting, toughening modification of the polypropylene, or the polybutene alloy material can be used as the general polyolefin material.

A method and apparatus for moving pipe on a rig floor between a number of different stations including an off-floor rack, a preparation opening, a borehole, and a storage area, such that tubulars can be loaded onto the drill floor, prepared at the preparation opening, loaded onto or off of the storage rack, and connected to a drill string while drilling is simultaneously conducted at the borehole, comprising at least two pipehandling devices, at least one of the pipehandling devices having multiple independent gripping arms, the pipehandling devices being arranged for communicating pipe between a storage area off the drill floor, a storage area on the drill floor, at least one preparation opening, and a drill opening are provided.

A square that includes two rigid, channeled members having an interior and an exterior, with the two members being joined at a ninety-degree angle to form a one-piece L-shaped tool having an elbow and a notch disposed on an exterior corner opposite the elbow. The invention also features a bubble level attached to the exterior of each member and a releasable adhesive member disposed upon the interior of each member, such as magnets, tapes, or adhesive plastic materials. Methods for pipe-fitting and for holding pipes or joints in place with the invention are also provided.

A fluid conduit system that employs fittings having ends with a structural portion and a seal portion. The ends of the fittings are inserted into a tube, which may be a hard, i.e., rigid, or soft, i.e., flexible, tube. The seal portion sealingly engages the inner diameter of the tube upon its insertion into the tube. The tube is deformed to prevent the fitting from being withdrawn from the tube; the portion of the tube in the immediate vicinity of each seal that forms the seal portion is not deformed. A method for forming a fluid conduit system is also provided.

A vortex-exciting vibration test device of flexible pipe fittings model set vertically in pull water pool is prepared as passing pipe fittings model through flow-speed increasing unit; setting said model and said unit vertically in pull water pool; supporting two ends of said model by support mechanism; using vertical test support to connect said unit and support mechanism with trailer and distributing various instruments of measurement-analysis system in said model, said units, said mechanism, said support and said trailer.

The invention discloses a full corrosion-resistant connection structure of a steel lining plastic composite pipeline, and belongs to the technical field of connection of the steel lining plastic composite pipeline. The structure comprises a corrosion-resistant ring sleeved on a non-meshing section of an external thread of a steel outer layer, a steel lining plastic composite pipe fitting consisting of a steel outer ring part and a plastic inner ring part, and a composite pipe consisting of the steel outer layer with the external thread, and a plastic inner layer, wherein the external thread consists of a meshing section and the non-meshing section; an annular cavity of which the inner wall is provided with an internal thread section is formed between the steel outer ring part and the plastic inner ring part; the pipe is in threaded connection with the pipe fitting; a solid hot melt adhesive is arranged in the annular cavity; when an alternating magnetic field is formed at the periphery of the joint of the pipe fitting and the pipe, the solid hot melt adhesive is in thread engagement with the steel outer ring part and in sealed connection with the end faces of the steel outer layer and the plastic inner layer; and the corrosion-resistant ring is in sealed connection with the non-meshing section of the pipe. After the scheme is adopted, the problem that the threads of the pipe and the pipe fitting are easily corroded and rusted is solved, and a full corrosion-resistant threaded connection effect is achieved.

The invention relates to an integrated pipe bender. The pipe bender comprises a machine tool working table which is sequentially provided with a pipe fitting straightening mechanism, a pipe fitting feeding structure and a bent pipe forming mechanism. The main design points are characterized in that a blanking device and a tubing head flaring device are arranged between the pipe fitting feeding structure and the bent pipe forming mechanism, and the blanking device comprises a hollow rotating shaft which is used for passing through by pipe fittings, a cutting knife which is positioned on the rotating shaft and a control mechanism which controls the opening and closing of the cutting knife head; and the tubing head flaring device comprises a flaring punch head capable of shift, a flaring clamping die mechanism and a drive mechanism which drives the flaring punch head to move, and the flaring punch head can prop against one side of the flaring clamping die mechanism. The purpose of the invention aims at providing the integrated pipe bender which can perform once forming on the flaring and the bent pipe of pipe fitting materials.

A fluid fitting is provided that is mechanically attached to a pipe, including a coupling body having an inner surface defining a bore for receiving the pipe therein. A ring is positioned to fit over the at least one end of the coupling body for mechanically attaching the coupling body to the pipe, and a main seal formed on the inner surface of the coupling body to engage the pipe. When installed, the ring and coupling body apply a compressive force to the main seal sufficient to attach the pipe to the coupling body in a non-leaking manner. An electrically operated sensor device is fixed to a surface of one of the coupling body or ring that, when the ring is installed on the coupling body, produces an electrical parameter in response to physical movement of the coupling body or ring to which the sensor device is fixed.

Thermosetting resin pipes and pipe fittings are provided which are prepared by polymerizing a cyclic olefin monomer in the presence of a ruthenium or osmium metathesis polymerization catalyst. These articles may be prepared by various methods, such as centrifugal casting. Reinforced articles may also be prepared by filament winding.

The present invention provides, in part, a device that can fit around a fitting retention compartment of a pipe fitting, apply axial pressure to a pipe insertion component so as to flex the teeth of a fastening ring inwardly, which permits smooth insertion and removal of piping elements. In embodiments, the device comprises a two-piece device with mating threads that permit the pieces to move toward and away from one another with minute adjustments.

The invention discloses a feeding and transferring mechanism for pipe fittings with end portions closed, and belongs to the field of workpiece machining mechanical equipment. A guide pipe through holeis formed in the upper end of a pipe storage hopper of the feeding and transferring mechanism. A lifting push plate is arranged on a push plate sleeve on the lower side of the pipe storage hopper ina sliding manner. A pipe movement guide plate is arranged on a guide pipe support on the lower side of a discharge guide pipe. A clamping rod limiting clamp is arranged at the upper end of a reciprocating swinging rod. A turnover gear is fixedly arranged on the end portion of one side of a fixed rotating shaft. The middle portion of one side of a turnover connection plate is fixedly arranged on the end portion, along the side of the pipe movement guide plate, of the fixed rotating shaft. The two sides of a pipe transferring belt are wound on and connected to pipe transferring rotation rollerson the two sides of a pipe transferring support correspondingly. A pipe transferring motor drives the pipe transferring rotation rollers to rotate. The feeding and transferring mechanism is reasonablein structural design, the pipe fittings can be conveniently and efficiently arranged and fed in an oriented manner one by one, the pipe fittings can be stably and accurately overturned vertically oneby one, and therefore the pipe fittings can be sequentially conveyed through vertical stations, the automation degree of pipe fitting feeding and processing can be improved, and requirements of machining and using can be met.

A method for shaping a Mg-alloy pipe includes such steps as putting a Mg-alloy pipe blank in a mould for generating superplastic bending, and introducing a pressure medium to the inside of said pipe blank for generating superplastic expansion to form a Mg-alloy pipe. Its apparatus is composed of mould consisting upper and lower moulds, sealing unit consisting of sealing block and two hydraulic cylinders, pressure medium source, and heating unit.

Provided is a movable type hole drilling device. The movable type hole drilling device comprises a shell (2). The lower portion of the shell (2) is fixedly connected with an idler wheel installation part (14). The lower portion of the idler wheel installation part (14) is provided with idler wheels (20) used for moving the hole drilling device. The upper portion of the idler wheel installation part (14) is capable of removably placing weight blocks (140) used for providing downward pressure during the hole drilling process. The upper portion of the shell (120) is provided with a hole drilling driving motor (2). The hole drilling driving motor (2) is in power connection with spline housing pipe fittings (5). The spline housing pipe fittings (5) are matched with spline shafts arranged on the upper portions of spline shaft connecting pieces (4). The lower portions of the spline shaft connecting pieces (4) are provided with a coupling sleeve. A concave portion of the coupling sleeve is used for containing a minor diameter part (42) on the upper portion of a drill driving shaft (40), and the coupling sleeve is fixedly connected with the drill driving shaft (40) through longitudinal extending fastening bolts (52).

The invention provides a tube penetrating device and a tube penetrating method for a fin type heat exchanger. The tube penetrating device comprises a fin type heat exchanger support device, a pipe fitting support device arranged at a first end of the former, and a guidance device (10) arranged at the second end, opposite to the first end, of the fin type heat exchanger support device, wherein the guidance device is provided with a connecting seat (11) and a plurality of guidance units (12) connected with the former and adjacent to each other in sequence. The tube penetrating device can effectively improve the tube penetrating efficiency, and has low probability of fin damage with guidance of the guidance units.

The present invention generally provides methods and apparatus for connecting threaded members while ensuring that a proper connection is made, particularly for premium grade connections. In one embodiment, a method of connecting threaded tubular members for use in a wellbore or a riser system is provided. The method includes the acts of operating a power drive unit, thereby rotating a first threaded tubular member relative to a second threaded tubular member; measuring the rotation of the first threaded tubular member; and compensating the rotation measurement by subtracting a deflection of at least one of: the power drive unit, and one of the tubular members.

Dispensing systems for dispensing one or more materials into a fluid flow conduit, during the conveyance of fluid through the conduit are configured to connect to a fluid conduit, such as a standard pipe of a shower arm and dispense a material into the water flow in the shower arm. The system includes a first tube member having a restrictor flow passage to provide a pressure differential, as fluid flows through the tube member. The pressure differential created within the restrictor passage by the fluid flow is communicated to a flask, to provide a pressure differential between the interior and the exterior of a flexible container within the flask. The pressure differential causes material within the flexible container to be drawn out and conveyed to the fluid flowing through the tube member. The flask may be connected to the first tube member, through an extension portion that is rotatable around the first tube member for convenient positioning. A quick-release connection structure may allow the flask to be connected and selectively releasable from the system.

The invention provides an in-situ self-sustaining contaminated soil restoring device by simulating the capillary phenomenon and the transpiration function of a plant and a method for restoring soil by utilizing the device. The restoring device comprises the following members: a main body, filling materials, an evaporator and accessories, wherein the main body is a hollow pipe fitting which is tightly filled with the filling materials; the filling materials are supported by depending on the accessories; the evaporator is arranged at the top end of the main body pipe fitting; the accessories are mainly of supporting materials for mounting other members. The specification of the restoring device is selected and the distribution density and depth are selected according to soil contamination conditions, and then the restoring device is inserted into the soil, so that contaminants in the soil are driven to move by utilizing the capillarity phenomenon and the transpiration function of the restoring device so as to be transferred into the restoring device. Thus, the contaminants in the soil are effectively removed.

The invention discloses a PVC material and a preparation method thereof. The PVC material comprises the following substances according to parts by weight: 100 parts of PVC, 2-8 parts of stabilizer, 2-6 parts of processing agent, 1.5-2.5 parts of lubricants, 4-12 parts of filler, and 0.05-1 part of colorant. Compared with the prior art, the invention adopts food sanitation-level or nontoxic raw materials; the mobility of the manufactured material is good, and the molding temperature and molding pressure of tubular products and pipe fittings can be reduced, thus preventing the PVC material from pyrolyzing. The PVC-U water supply tubular products, pipe fittings and pressure-proof ball valves made from the material have good acid and alkali resistance, inoxidability and ageing resistance, and the pressure resistance of the pressure-proof ball valve is more than or equal to 2.5MPa (the pressure resistance of similar products is only more than 1.6MPa), thus fully meeting food and chemical use requirements.

The invention relates to a clamping-position-adjustable pipe clamping device, comprising a lifting supporting platform, a screw rod, a nut, a hand wheel, a clamping device and a fixing device, wherein the screw rod is located above the lifting supporting platform; moreover, the screw rod is installed on the lifting supporting platform through the nut; the hand wheel is fixedly arranged on the top end of the screw rod; the clamping device is installed on the bottom end of the screw rod; the screw rod is driven to rotate by rotating the hand wheel, so that the screw rod is driven to move up and down in the nut, and then the clamping device is driven to move up and down on a vertical plane; an effect of clamping a pipe fitting is realized; the fixing device is located right below the clamping device; moreover, the fixing device is fixedly connected with the lifting supporting platform. The device has the advantages of simple structure, convenience in operation, low manufacturing cost and the like; by applying the device, a function of axially adjusting a clamping position can be realized; moreover, as the device is adjustable in height and angle, pipe fitting cutting, grinding, welding and other work can be implemented more conveniently.

A Self-Testing and Self-Setting residential fire pump system for residential fire protection. The system is designed to boost pressure into a residential sprinkler system when water supply is insufficient to meet the sprinkler system's design requirements. The system comprises an in-line vertical multi-stage, centrifugal pump connected to an electric motor with horsepower ranges from ¾ to 10, a flow rate range of 15 gpm-200 gpm, and pressure ranges of 20 psi-238 psi. The system also comprises a controller assembly which is programmed to Self-Test and Self-Calibrate to most residential fire sprinkler systems with the push of a button, and a manifold made from brass or stainless steel pipe fittings connected to the pump's suction and discharge ports, allowing water to flow from an existing water supply through the pump to either the test loop or existing residential fire sprinkler system. The pump and controller can be mounted on an ABS base.

The invention discloses a device for automatically expanding and punching pipe fittings, comprising a clamping mechanism for clamping and fixing the middles of the pipe fittings and a pipe expanding mechanism and a punching mechanism which are respectively arranged on two sides of the clamping mechanism. The clamping mechanism is provided with a pair of clamping dies for clamping and fixing the pipe fittings. The pipe expanding mechanism comprises a pipe expanding die and a pipe expanding cylinder for driving the pipe expanding die to expand the pipe fitting mouth; the punching mechanism comprises a piercing die, a pair of fixing blocks with punching needles and a double-stroke oil cylinder; the piecing die is fixed to a center oil cylinder rod of the double-stroke oil cylinder and is driven by the center oil cylinder rod to be positioned at the pipe fitting mouth; and the fixing blocks are respectively connected with two punching needles, arranged on two sides of the piercing die and driven by an external oil cylinder rod on the double-stroke oil cylinder to slide along the direction vertical to the pipe fittings. By using the device, two ports of the pipe fitting are respectively expanded and punched and the efficiency can be improved.

The invention relates to a device which is used for polishing the outer circumferential surface of a bended pipe. An outside polishing device for bended pipe fittings comprises a rack, the rack is provided with a clamping device, a sliding device and a grinding device; the grinding device includes a fixing seat and a driving unit, the fixing seat is provided with a polishing wheel which comprises an inner wheel and an outer wheel in synchronously rotation, the internal wall of the inner wheel is provided with more than two elastic grinding members, the elastic grinding members are arc-shaped, and the outer wheel is connected with the driving unit; the grinding device is connected with the sliding device which comprises a guide frame and a guide trail, and the guide frame moves along the guide rail. The outside polishing device for the bended pipe fittings is simple in structure, even in polishing and high in yield, and without rotation of the pipe fittings to be processed, reduces the processing time, thereby solving the existing technical problems that the polished bended pipe fittings are complicated in structure and uneven in polishing, rotation of the pipe fittings is required during polishing, time and labor are wasted and working efficiency is low in the prior art.

The invention provides a small-diameter pipe inside weld surface defect identification device. The device comprises a computer, an industrial camera, an adapter, an industrial endoscope, a mobile portable light source, an endoscope fixing clamp and a pipe fitting to be detected. The industrial camera is connected with the computer. One end of the adapter is connected with the industrial camera, the other end is connected with the industrial endoscope, and the adapter can be used for acquiring weld images. The mobile portable light source is connected with the industrial endoscope and used for providing lighting inside the pipe. The endoscope fixing clamp is connected with the endoscope and used for center positioning, upward and downward adjustment and positioning and 360 degrees of rotation of the endoscope. Identification detection of the weld surface defects inside the pipe fitting to be detected is completed.

The invention relates to a pipe fitting radial indexing drilling clamp tooling, which relates to a clamp tooling of a pipe fitting excircle drilling work procedure and solves the problems that each connecting hole on the existing pipe fitting excircle is processed by boring and milling equipment and precise numerical control equipment, and the mass production requirements cannot be met. A drill bush is arranged in each drill bush hole arranged in an indexing disc, each screw rod hole arranged in the indexing disc is matched with one pressing screw rod, in addition, one end of the pressing screw rod is connected with the screw rod hole through screw threads, the other end of the pressing screw rod passes through a press plate to be connected with a pressing screw nut through screw threads, a positioning pin is arranged in a first positioning pin hole, a copper bush is arranged in a copper bush installing hole, a middle shaft is arranged in a middle shaft installing hole and an inner hole of the copper bush, a middle shaft at one end of the copper bush is connected with a screw nut through screw threads, a middle shaft of one end of a first flange is connected with a fastening handle through screw threads, a positioning screw and a positioning threaded hole are connected through screw threads, an indexing pin is embedded in a second positioning pin, and a position limiting pin is arranged in a first position limiting pin hole and a second position limiting pin hole. The clamp tooling is used for processing each hole on the excircle surface of pipe fittings.

The invention discloses a pipe fitting sealing property testing device and aims at achieving the effects that the pipe fitting sealing property testing device is convenient to operate, high in testing result accuracy and capable of guaranteeing that the two pipe ends of a pipe fitting are not prone to being damaged due to clamping. The device comprises an air feed pump, a baroceptor, a main rack, two push plate air cylinders, two side racks, a main end cover and a subsidiary end cover, the two push plate air cylinders are arranged on the two side racks respectively, a piston rod of one of the push plate air cylinders is connected with the main end cover, a piston rod of the other push plate air cylinder is connected with the subsidiary end cover, a main elastic sealing ring pad is arranged on the main end cover, a subsidiary elastic sealing ring plate is arranged on the subsidiary end cover, and a main cover air hole is formed in the main end cover. The pipe fitting sealing property testing device has the advantages that the pipe fitting can be positioned to the right position, the sealing property can be guaranteed, and the pipe fitting is not damaged due to clamping; the device is provided with a sealing structure which can be adjusted in a self-adaptation mode, and the sealing effect in the high pressure testing process can be intensified; the device is provided with an assistant positioning structure, the end covers can be prevented from moving backward, the push plate air cylinders can be protected, the sealing effect can be improved, and stability in the testing process can be maintained.

A water supply and drainage pipeline repair technique adopting a size film lining method comprises the steps of: (1) dredging and cleaning a pipeline; (2) inspecting a pipeline internal observing video; (3) producing a working pit; (4) welding a lining pipe; (5) plugging, deflecting and transferring water to the pipeline; (6) internally pretreating and repairing the pipeline to be repaired; (7) drawing the lining pipe into the pipeline to be repaired; (8) sealing the two ends of the lining pipe and embedding a pipe fitting; (9) filling water into the lining pipe and pressurizing; (10) preparing size and auxiliary vacuum casting; (11) keeping the internal water pressure of the lining pipe, and supplying water again after the size is solidified; (12) videoing the inner side of the pipeline and recording the videos after the repair; and (13) the step 1 to step 12 belong to repair construction, taking every two continuous inspection wells as a construction working segment, constructing towards the upstream and downstream sequentially from the inspection well which is next to the working pit, after completing all the working pipeline segments, laying a new pipeline in the working pit, refilling the soil and compacting to restore the pavement; and the pipeline has long service life, high water flow, fast construction speed, less pollution and small influence to roads.

The invention provides a pipe fitting quick connection device, and belongs to the technical field of pipe fitting connectors. The pipe fitting quick connection device solves the problem that sealing performance of an existing pipe fitting quick connection device is poor. The device comprises an outer cylinder with a connection channel, the inside of a cavity of the outer cylinder is provided with a sealing ring assembly and a clamping assembly, the clamping assembly is located on the outside of the sealing ring assembly, a supporting cylinder is coaxially arranged in the outer cylinder, the inner end of the supporting cylinder is provided with a cylindrical positioning portion bent outwards, the outer side wall of the positioning portion is connected with the inner side wall of the outer cylinder, the outer side wall of the supporting cylinder is provided with an annular groove, and a sealing part is embedded in the annular groove. Due to the fact that the pipe fitting quick connection device is provided with the supporting cylinder, stability of a pipe fitting can be improved when the device is inserted into the pipe fitting with a thin pipe wall or a soft pipe body; the supporting cylinder is provided with the sealing part, and accordingly a sealing function is performed on the inner side wall of the pipe fitting; due to combined action of the sealing part, a flat sealing ring and a sealing ring, the pipe fitting is sealed in multiple ways, and stability of the device is improved when the device works.