688results about "Pipe connection arrangements" patented technology

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 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.

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.

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.

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 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.

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

When laser welding a resin tube and a resin fitting, high joint strength is obtained while maintaining airtightness. [Solution] The resin joint 3 includes a first connecting end 32 to which the resin tube 2 is connected. The first connecting end 32 has an inner cylinder portion 35 and an outer cylinder portion 36 located on the outer circumferential surface side of the inner cylinder portion 35, forming an annular recess 37 between itself and the inner cylinder portion 35 that opens towards the tip 34 side of the first connecting end 32, and is transparent to laser light. The outer diameter D1 of the inner cylinder portion 35 at the tip 34 is smaller than the outer diameter D2 of the inner cylinder portion 35 at the recess 37, and the inner cylinder portion 35 has an inner cylinder guide surface 38 that guides the resin tube 2 from the tip 34 to the recess 37. The connection structure 1 includes a resin joint 3 and a resin tube 2 connected to the resin joint 3 that is impermeable to laser light. The resin tube 2 is welded to the outer cylinder portion 36 of the resin joint 3 while inserted into the recess 37 of the resin joint 3.

The utility model discloses a ceramic shaft welding corrugated pipe which comprises a corrugated pipe body, a flange A and a shaft piece, a flange B is arranged on one side of the flange A, the shaft piece is arranged between the flange A and the flange B, one end of the corrugated pipe body is arranged on the flange B, a flange C is arranged at the other end of the corrugated pipe body, and a bearing sleeve is arranged on the other side of the flange C; the bearing sleeve and the flange C are both movably connected to the surface of the shaft in a sleeving mode. According to the utility model, the shaft parts are arranged and are connected together through the flange A and the flange B, so that the shaft parts are not required to be welded, the original welding structure is not required to be removed, and then the shaft parts are replaced by the ceramic shaft parts, thereby improving the hardness, the compressive strength and the chemical inertness, obviously prolonging the service life and improving the performance in the subsequent use; the problems that in the prior art, after an original structure is welded, part of shaft pieces crack, even if the original structure does not crack, part of air leakage exists in the follow-up test and operation, the service life is shortened, and the surface of the shaft is abraded and scratched due to long-time axial movement are solved.

A drive assembly for a portable, handheld battery powered tool is provided. The driving assembly comprises a motor, a gear assembly, a lead driving shaft, a jaw driving component and a magnetic displacement monitoring system. A gear assembly is coupled to the motor, and a lead drive shaft is operably coupled to the gear assembly. The magnetic displacement monitoring system has at least one magnet coupled to the lead drive shaft, at least one magnetic field sensor disposed proximate the magnet, and a processing element electrically coupled to the magnetic field sensor. When the motor operates, the lead drive shaft rotates about the axis and the jaw drive member moves along the lead drive shaft. A magnetic field sensor senses changes in the magnetic field and sends at least one signal to a processing element that determines the position of the jaw drive member along the lead drive shaft.

The utility model discloses a quick-screwing connector easy to disassemble, which relates to the technical field of quick-screwing connectors and comprises a connector assembly, a locking and sealing assembly, a locking and sealing assembly and a locking and sealing assembly. The guide assembly is used for guiding the hose; the locking and sealing assembly comprises an adjusting nut which is arranged on the outer side of the second connecting part in a sleeving mode and is in threaded connection with the second connecting part, and the left side of the adjusting nut is rotationally connected with a movable pressing ring through a bearing; an avoiding groove matched with the second connecting part is formed in the right side of the adjusting nut, and a pressing groove is formed in the left side of the movable pressing ring. When the hose is disassembled, the adjusting nut and the movable pressing ring cannot be sleeved outside the hose to be synchronously disassembled, so that the adjusting nut and the movable pressing ring do not need to be recycled independently subsequently, and the disassembling process is more convenient.

The PVC water hose connector structure comprises a PVC sealing connecting piece and a reinforcing connecting pipe, and the reinforcing connecting pipe is embedded and fixed in the center of the PVC sealing connecting piece and penetrates through the PVC sealing connecting piece; and the thermal deformation temperature of the reinforced connecting pipe is higher than that of the PVC sealing connecting piece. The PVC sealing connecting piece and the reinforcing connecting pipe which are made of different materials are fixed together in an embedded mode, the PVC sealing connecting piece is used for being welded to the PVC water hose in a sealed mode, the reinforcing connecting pipe is used for providing a connecting position for external pipeline equipment, the reinforcing connecting pipe cannot deform when the PVC sealing connecting piece is heated to deform, it is ensured that a water outlet of the PVC water hose can be normally used, and the service life of the PVC water hose is prolonged. In addition, the fixing mode of the PVC sealing connecting piece and the reinforcing connecting pipe enables the irrigation hose to bear larger water pressure, the service life of the irrigation hose is prolonged, and the connecting strength and the sealing performance of the hose connector are improved.

The environment-friendly recyclable PVC pipe comprises a flow guide assembly and a self-sealing sleeve, the flow guide assembly comprises a flow guide part and a wall breaking part, the wall breaking part comprises a main body and a rotating handle, the main body can reciprocate in the radial direction of the PVC pipe, the rotating handle is kept parallel to the PVC pipe and detachably connected with the main body, and the flow guide part comprises a flow drainage part and a flow guide part; the flow guide part is fixedly connected with the wall breaking part through the main body, the height of the position, connected with the main body, of the flow guide part is smaller than that of the rotating handle in the outward direction of the axis of the PVC pipe, and the inner diameter of the end, leading out residual liquid in the PVC pipe, of the flow guide part is smaller than that of the other end of the flow guide part in the axial direction of the PVC pipe; the height of the drainage part is greater than the distance from the inner diameter surface of the flow guide part to the inner diameter surface of the outer layer; the self-sealing sleeve comprises an outer layer, a middle layer and an inner layer, the middle layer material can be swelled when encountering liquid in the PVC pipe, the pipe opening of the PVC pipe is blocked, and therefore the PVC pipe can be installed and detached in the working state.

The utility model relates to the technical field of pipeline connection, in particular to a connecting structure based on a PE pipe, which comprises a first pipeline, a second pipeline and a connecting device, the first pipeline is connected with the second pipeline through the connecting device, a driving shaft is rotated to enable a driving bevel gear to rotate, the driving bevel gear drives a driven bevel gear to rotate, and the driven bevel gear drives the first pipeline to rotate. And along with rotation of the threaded rod, the sliding block moves along the threaded rod to push the fastening block to move towards the first fixing ring in the rectangular groove, the fastening block gradually presses the second fixing ring and drives the second pipeline, and finally the second fixing ring and the first fixing ring are in butt joint and are firmly fixed in the connecting device. Meanwhile, the sealing gasket is pressed, the sealing effect is ensured, and when disassembly is needed, only the two sets of driving shafts need to be sequentially and reversely rotated, the fastening block is made to leave the second fixing ring, and locking of the second fixing ring is relieved.

To propose a fitting for a secondary pipeline of a double pipe system which can be produced in a simple and low-cost manner and in which it is possible to check the connecting points of the primary and secondary pipelines during assembly.SOLUTION: A fitting includes: two half-shells 2 composed of plastic, wherein each of the half-shells has an integrated heating wire, wherein each heating wire is arranged in the region of a connecting piece 4 and the heating wire has a plurality of meandering windings, wherein each heating wire is arranged in a groove provided for the heating wire in the half-shell; and connecting elements 7 which connect the two half-shells. The fitting has spacer elements arranged on the inner circumference of the half-shells for concentric arrangement of the fitting with respect to a primary pipeline.SELECTED DRAWING: Figure 1

The application discloses a kind of trenchless insertion type pipe HDPE lining structure and its construction method, including HDPE lining pipe;HDPE lining pipe includes HDPE pipe section and hot melt mesh;HDPE pipe section is arranged along the long axis of the pipeline to be repaired;The rear end surface of HDPE pipe section is provided with annular groove;The front end surface of HDPE pipe section is provided with annular convex strip;Adjacent HDPE pipe section is connected by being inserted in annular groove through annular convex strip;Hot melt mesh is arranged on the rear end surface of HDPE pipe section along the ring;Hot melt mesh is connected with terminal;The front end of HDPE lining pipe is inserted into the pipeline to be repaired before the destruction position;The rear end of HDPE lining pipe is inserted into the pipeline to be repaired after the destruction position.The application solves the technical problems of poor tensile strength between adjacent pipe sections in traditional socket connection method, insufficient connection rigidity, poor integrity, socket interface easy to crack and damage, easy to deform and difficult to replace.

The invention relates to a method for checking, prior to welding, two components (4, 5, 6) made of polymer material, the method comprising a step of determining respective values relating to the roughness of the components (4, 5, 6), a step of determining respective values relating to the cleanliness of the components (4, 5, 6), a step of determining respective values relating to the temperature of the components (4, 5, 6) and automated means for halting progression to a subsequent method step should the predetermined conditions not be met.

The utility model discloses a reducing self-adaptive PPR pipe joint, relates to the field of pipe joints, and aims to solve the problem that in the prior art, the angles of the two ends of a joint cannot be adjusted, so that pipelines with included angles are difficult to flexibly connect during installation. The two ends of the corrugated pipe are fixedly connected with a first L-shaped section annular connecting piece and a second L-shaped section annular connecting piece correspondingly, and first connecting rods are fixedly connected to the positions, at the upper end and the lower end of the corrugated pipe, of the end face of the inner side of the first L-shaped section annular connecting piece correspondingly. The first L-shaped section annular connecting piece and the second L-shaped section annular connecting piece which can rotate are arranged, the flexible characteristic of the corrugated pipe is matched, free adjustment of the angles of the two ends of the pipe joint is achieved, and the pipe joint is convenient to use. And the connecting requirements of pipelines at different angles can be flexibly met, and the construction convenience is greatly improved.

The utility model relates to the technical field of pipe fittings, in particular to a polyurethane pipeline joint convenient to connect and fix, which comprises an insertion pipe used for connecting two steel pipes, a polyurethane heat preservation layer fixedly sleeved on the outer side of each steel pipe, a polyethylene plastic outer protection pipe fixedly sleeved on the outer side of each polyurethane heat preservation layer, and a lantern ring integrally formed at the outer ring of the insertion pipe. Outer ring grooves are formed in the two ends of the outer ring surface of the lantern ring, clamping blocks are inserted into the surfaces of the outer ring grooves, baffle rings are arranged in the outer ring grooves in a sleeving mode, and the baffle rings push the clamping blocks to clamp the steel pipe; the beneficial effects are that the lantern ring is integrally formed on the outer ring of the insertion pipe, and the gap is reserved between the lantern ring and the polyurethane thermal insulation layer, so that the thermal insulation layer is prevented from being directly damaged by high temperature during welding. And the design of the baffle ring further protects the welding point and prevents the welding point from being exposed in the external environment, so that the integrity and the thermal insulation performance of the thermal insulation layer are kept.

The utility model relates to the technical field of glass fiber reinforced plastic flanges, and discloses a high-strength pressure-resistant glass fiber reinforced plastic flange which comprises a flange plate, pipelines are fixedly connected to the top end of the flange plate, pipelines are fixedly connected to the left side, the right side, the front end and the rear end of the top end of the flange plate respectively, and a first connecting rod is fixedly connected to the top end between the pipelines. According to the high-strength pressure-resistant glass fiber reinforced plastic flange, the reinforcing blocks, the first connecting rods and the second connecting rods are arranged, the reinforcing blocks can improve the strength between the flange plate and a pipeline, the strength of the flange plate and the pipeline can be improved, and the connecting position of the flange plate and the pipeline is prevented from being bent and damaged; the second connecting rods are connected between the reinforcing blocks, the strength of the reinforcing blocks can be further improved, and therefore the service life of the flange plate and the pipeline can be prolonged, and the problems that the strength of a glass fiber reinforced plastic flange is poor, and the pipeline cannot be damaged are solved. And the service life of the glass fiber reinforced plastic flange is affected.

The utility model relates to the technical field of pipe connection, in particular to a pipe connection structure which comprises a bell mouth, a spigot and a rotating body, the spigot is inserted in the bell mouth, a sealing piece is installed between the bell mouth and the spigot, the rotating body is sleeved on the spigot, the relative positions of the rotating body and the spigot in the axis direction of the rotating body are fixed, and the rotating body is sleeved on the spigot. External threads are arranged on the outer wall of the rotating body, internal threads matched with the external threads are arranged on the inner wall of the bellmouth, the rotating body is in threaded connection with the bellmouth, and when pipes are connected, the sealing piece is installed in the bellmouth, the rotating body is arranged on the inserting opening in a sleeving mode, the inserting opening and the rotating body are inserted into the bellmouth, the rotating body is screwed tightly, and installation is completed; the axial relative positions of the rotating body and the inserting opening are fixed, the rotating piece and the bell mouth are connected in a matched mode through the external threads and the internal threads, and the axial tensile strength of the connecting structure is improved.

The utility model discloses a quick detach polyurethane heat preservation pipe, including first heat preservation pipe, second heat preservation pipe, still including the detachable sealing device of setting up between both, the detachable sealing device includes connecting pipe body and sealing assembly, the end face of connecting pipe body, first heat preservation pipe, second heat preservation pipe all is equipped with flange, adjacent the flange between through bolt fixed, sealing assembly is located between connecting pipe body and first heat preservation pipe, second heat preservation pipe, the outside of connecting pipe body is equipped with modular heat preservation layer, the heat preservation layer is by heat preservation unit and is detachably connected through fixed structure, the pressure detection channel is seted up in connecting pipe body inside, is equipped with pressure sensing module group in pressure detection channel. The utility model belongs to heat preservation pipe technical field, specifically is to provide a kind of for solving the problem of low efficiency and fault monitoring absence in prior art in dismounting.

The utility model discloses a water-saving environment-friendly plastic pipe connecting pipe fitting, and relates to the technical field of pipe connection, the water-saving environment-friendly plastic pipe connecting pipe fitting comprises a first connecting disc, a second connecting disc and a plastic pipe, one side of the first connecting disc and one side of the second connecting disc are respectively provided with a first connecting pipe, and the center of the first connecting disc is provided with a mounting hole; a first connecting pipe is arranged on one side of the first connecting disc, a second connecting pipe is arranged on the other side of the second connecting disc, threads are arranged on the inner wall of the mounting hole and the outer wall of the second connecting pipe, a lining ring is arranged in the first connecting pipe, water swelling rubber is arranged at the bottom of the lining ring, and a locking bolt is arranged outside the first connecting pipe. The number of the locking bolts is two, the locking bolts are in threaded connection with the first connecting pipe, the connecting pipe fitting and a pipe are connected in an inserted mode, screws are used for limiting, a connecting gap is filled with water swelling rubber, the connecting sealing performance of the pipe fitting and the pipe is improved, the connecting pipe fitting can be repeatedly used, and the using effect of the connecting pipe fitting is improved.

The utility model discloses a PVC plastic connecting pipe, and particularly relates to the technical field of PVC plastic pipes, the PVC plastic connecting pipe comprises a first pipe body, the outer wall of the first pipe body is fixedly connected with a sealing adjusting structure, the sealing adjusting structure is arranged on the inner wall of a connecting ring, the outer wall of the connecting ring is connected with an adjusting ring through a bearing, and the outer wall of the adjusting ring is provided with a friction block. The inner wall of the adjusting ring is in threaded connection with a threaded sleeve, the other side of the threaded sleeve is fixedly connected with a connecting pipe body, and a sealing ring is installed on the inner wall of the fixing ring. According to the PVC plastic connecting pipe, positioning, sealing and fixing functions are integrated, a plurality of independent components needed in a traditional connecting mode are reduced, the pipeline connecting structure is simplified, meanwhile, the problem that in the traditional connecting mode, the possibility that fault points are increased due to the existence of the multiple components is solved, and the service life of the connecting pipe is prolonged. And through the integrated design, the matching problem among the components is further reduced, and the fault risk is reduced.