3723results about "Flexible pipes" patented technology

The present disclosure relates to an air conditioner pipe including: a corrugated stainless steel pipe; straight pipe portions formed on both ends of the corrugated stainless steel pipe to fit connection members thereto; a knitted mesh for inserting the corrugated stainless steel pipe thereinto; and a fixing ring member for fixing each end of the knitted mesh to the corresponding straight pipe portion, wherein each straight pipe portion is formed of a straight pipe member having a higher thickness than the corrugated stainless steel pipe and is welded to the corresponding end portion of the corrugated stainless steel pipe, so that the straight pipe portion is reinforced.

A metal bellows for downhole use includes: a bellows capsule with a first end and a second end; an inner diameter side and an outer diameter side arranged between the first end and the second end; where the bellows capsule comprises a first bellows convolution and second bellows convolution and optionally additional bellows convolutions; and each bellows convolution comprises: a root on the inner diameter side of the bellows capsule; a first sidewall extending from the root toward the outer diameter side of the bellows capsule with a first connection point at the distal end; a second sidewall extending from the root toward the outer diameter side of the bellows capsule with a second connection point at the distal end and wherein the second sidewall is on the opposite side of the root as the first sidewall; wherein: the bellows convolutions are formed as a single piece; and the second sidewall connection point of the first bellows convolution is permanently affixed to the first sidewall connection point of the second bellows convolution.

A tubing assembly is provided that can comprise a plurality of tubes or lumens that can be disposed within a head of a peristaltic pump. The tubing assembly can provide a flow rate or volume capacity that is generally equal to or greater than that achieved with a comparable prior art tube while operating at higher pressures than that possible using the prior art tube. Further, in accordance with some embodiments, the tubing assembly can achieve a longer working life than a comparable prior art tube, and the load on the pump motor can be reduced such that the pump life is increased and / or a larger pump motor is not required to achieve such advantageous results.

The invention discloses a multi-layer gradient composite polyethylene lining hose and a microwave triggering repairing method thereof, the multi-layer gradient composite polyethylene lining hose comprises a self-repairing functional layer, a reinforcing framework layer, an interface bonding layer and an outer protective layer which are sequentially compounded from inside to outside, and the invention relates to the technical field of pipeline repairing. According to the multi-layer gradient composite polyethylene lining hose and the microwave triggering repairing method thereof, through combination of a multi-layer gradient composite structure (a self-repairing layer, a reinforcing framework and a gradient interface) and a microwave triggering repairing technology, three major breakthroughs are achieved: 1) the service life of a pipeline is prolonged to 50 years (the self-repairing efficiency is greater than or equal to 85%); (2) the repairing efficiency is improved by 3 times (DN1000 pipe is less than or equal to 8 hours), (3) the energy consumption is reduced by 70% (microwave directional curing), an intelligent monitoring system (optical fiber sensing and AI analysis) ensures the construction precision (the gap is less than or equal to 2 mm), high strength (the ring stiffness is SN12 grade), low emission (the carbon emission is reduced by 65%) and wide applicability (DN300-DN3000) are achieved, and a traditional pipeline repairing mode is thoroughly innovated.

The invention relates to the technical field of oil and gas transmission, and discloses an intelligent leakage early warning flexible composite pipeline system and an early warning method.The system comprises a composite pipeline body, an optical signal processing device and a data processing unit, and the optical signal processing device is in communication connection with the data processing unit to achieve data transmission. The early warning method corresponds to the system. According to the invention, intelligent leakage early warning and monitoring of the flexible composite pipeline system are realized; the distributed temperature sensing element can sense the temperature change of the pipeline; the optical signal processing device converts the laser signal into an electric signal and transmits the electric signal to the data processing unit; the data processing unit calculates the on-way temperature and the leakage position of the pipeline and gives an alarm for abnormal data; the problem that a traditional flexible composite pipe lacks a sensing function is solved, environmental pollution and energy loss caused by pipe transportation oil gas leakage are effectively reduced, safety and stability of oil gas transportation are guaranteed, and the intelligent development of the composite pipeline industry is promoted.

The present invention provides a rubber member having excellent corrosion resistance and a semiconductor manufacturing–related device using the same. Provided is a rubber member that includes an olefin-based rubber, the rubber member being at least one member selected from the group consisting of building material members, mobility members, aerospace members, semiconductor members, and information communication members, and the rubber member coming into contact with a corrosive substance.

A paired set of elongated lines or hoses, in which each line comprises an elastic portion having a series of serially-connected counter-wound coils. One line's coils are wound in a clockwise rotation, while the other line's coils are wound in a counter-clockwise rotation. One line is positioned longitudinally inside the other. The lines are bound together by a plurality of ties positioned at crossing sites where the coils from one line engage the coils from the other line.

The utility model relates to the technical field of inflatable hoses, in particular to a high-performance wear-resistant extremely-cold-resistant inflatable hose. The inflation hose comprises a metal corrugated pipe, the metal corrugated pipe is sleeved with a steel wire mesh sleeve, the steel wire mesh sleeve is sleeved with a long connecting pipe, the long connecting pipe is sleeved with a vulcanization layer, one end of the metal corrugated pipe is connected with a long inner cone connecting nozzle in an inserted mode, and the outer surface of the long inner cone connecting nozzle is sleeved with a nut in a threaded mode. And a long outer cone connecting nozzle is inserted into the other end of the steel wire mesh sleeve. The inflatable hose can meet the requirement of a dew point of-65 DEG C by adopting a metal corrugated pipe structure, can meet the requirements of 40MPa working pressure and 120MPa bursting pressure structure by adopting a steel wire mesh sleeve structure and adopting a high-pressure brazing form after double-layer weaving, and meanwhile, the vulcanization layer is arranged outside the long connecting pipe in a sleeving manner, so that the service life of the long connecting pipe is prolonged. Therefore, the inflatable hose has excellent oxidation resistance, ozone resistance and erosion resistance.

The invention relates to a rubber composition that can be used to form in the crosslinked state at least one layer of a hose (10), and a hose in which at least one layer (11, 13) is made up of this composition. The invention applies to any hose for transfer of a fluid under pressure, preferably a multilayer hose for automotive vehicle. The rubber composition according to the invention, based on at least one elastomer, comprises a reinforcing filler and a crosslinking system comprising sulfur and / or a peroxide, where the reinforcing filler comprises at least one recycled carbon black coming from shredding or thermal decomposition of used rubber-based articles, and a functionalized lignin in powdered form.

The invention discloses a non-metal composite hydrogen conveying hose with a multi-form hydrogen blocking layer. The non-metal composite hydrogen conveying hose comprises a non-metal inner pipe, a non-metal fiber reinforcement layer and a non-metal outer protection pipe which are sequentially arranged from inside to outside in a sleeving mode. The non-metal inner pipe sequentially comprises an organic hydrogen-resistant coating, a composite fiber lining pipe and a barrier layer from inside to outside; the non-metal fiber reinforced layer sequentially comprises a fiber pre-impregnated winding layer and a reinforcing rib layer from inside to outside; the non-metal inner pipe and the non-metal fiber reinforced layer are bonded with each other by adopting thermosetting polyurethane; the non-metal fiber reinforcement layer and the non-metal outer protection pipe are connected in a non-bonding mode. The non-metal composite hose has good hydrogen leakage prevention capacity and flexibility and can be used for high-pressure hydrogen conveying.

Provided is a hose including a first connector assembly including a regulator assembly, a second connector assembly, and a hose assembly coupled to the first and second connector assemblies. The hose assembly includes an inner hose member having first and second ends, an outer hose member having first and second ends, a first hose connector assembly coupled to the first ends of the inner hose member and outer hose member and the first connector assembly, and a second hose connector assembly coupled to the second ends of the inner hose member and outer hose member and the second connector assembly.

An improved Type C air conditioning hose is provided that meets or exceeds SAE J2064 and J3062 requirements, offers good flexibility and fracture resistance, and exhibits improved permeation ratings for refrigerants including R134a and R1234yf. The multilayer type C barrier air conditioning hose includes an inner elastomeric tube layer capable of direct bonding to plastic without an intervening adhesive. The inner elastomeric layer is prepared from a first elastomeric composition comprising a blend of an ethylene propylene diene terpolymer rubber (EPDM) and a chloroprene rubber (CR), phenylenedimaleimide, and a maleated compound.

The invention relates to the field of automobile part manufacturing, and particularly discloses a barrier layer direct bonding type TPE material for an automobile air conditioner pipeline system and a preparation method and application of the barrier layer direct bonding type TPE material. The TPE material is prepared from the following raw materials: a thermoplastic elastomer TPE, PA, EVOH, polyether block amide, a glycidyl methacrylate grafted olefin copolymer elastomer, a toughening compatilizer, composite modified montmorillonite, a cold-resistant additive, an antioxidant and paraffin oil. Wherein the composite silane coupling agent, lauric acid and N, N '-carbonyldiimidazole are adopted to modify the nano-montmorillonite, so that the dispersity of nano-montmorillonite particles is improved, the formation of aggregates is effectively reduced, and the mechanical property of the material is enhanced; the polyether block amide, the glycidyl methacrylate grafted olefin copolymer elastomer and the toughening compatilizer have a synergistic effect, so that good adhesiveness of the TPE material and the barrier layer is realized.

The invention relates to a super wear-resistant fracturing hose assembly and a preparation method thereof. The super wear-resistant fracturing hose assembly comprises a hose and a joint, the hose comprises a hose body super-wear-resistant layer, an inner rubber layer and a steel wire framework layer. The connector comprises a super-wear-resistant inner core body formed by compounding a metal inner core body and a core body super-wear-resistant layer, a first sleeve arranged on the outer side of the super-wear-resistant inner core body in a sleeving mode, and a second sleeve arranged on the outer side of the first sleeve in a sleeving mode. The inner side of the second sleeve is connected with the outer side of the first sleeve in a buckling and pressing mode, the inner side of the first sleeve is connected with the outer side of the steel wire framework layer in a buckling and pressing mode, and the inner side of the steel wire framework layer is connected with the super-abrasion-resistant inner core body in a buckling and pressing mode on the anti-pulling-off section of the super-abrasion-resistant inner core body and connected with the inner rubber layer in a sealing mode on the sealing section of the super-abrasion-resistant inner core body. The inner rubber layer is in sealing connection with the super-wear-resistant inner core body at the sealing section of the super-wear-resistant inner core body; the core body super-wear-resistant layer and the pipe body super-wear-resistant layer are in high-temperature welding connection through a welding rod; the wear resistance of the hose connector part can be improved.

A rotation sleeve grip structure for garden hoses or other tubings is provided. A hose assembly can include a hose tubing and a rotation sleeve installed over an outer surface of the hose tubing, where the rotation sleeve is constrained between first and second open ends of the hose tubing and comprises a hollow cylindrical shell configured to enclose a portion of the hose tubing along a longitudinal length. The rotation sleeve is rotatable through 360 degrees about a circumference of the outer surface of the hose tubing. An inner sleeve can be affixed to the outer surface of the hose tubing, and may be disposed between the hose tubing and the rotation sleeve. One or more circumferential rib protrusions and corresponding circumferential channels for receiving the rib protrusions can be provided between the inner sleeve and the rotation sleeve.

A preparation method of an explosion-proof thickened wear-resistant rubber and plastic pipe belongs to the field of rubber and plastic pipes, the explosion-proof thickened wear-resistant rubber and plastic pipe comprises an inner layer, a middle layer and an outer layer, the inner layer is an ultrahigh wear-resistant composite layer, is compounded by polytetrafluoroethylene and polyimide, and is reinforced by nanoscale silicon carbide particles and graphene; the middle layer is an anti-explosion energy absorption layer, a shape memory polymer is combined with crosslinked polyethylene to form an intelligent material capable of responding to pressure change, and a high-strength aramid fiber and carbon fiber composite material is embedded into the middle layer; the outer layer is an anti-explosion impact barrier layer, nano ceramic reinforced silicone rubber is adopted, and ultra-high molecular weight polyethylene is combined with ceramic particles, so that the high pressure resistance and the explosion resistance are improved. The inner layer adopts the high-performance material and the nano reinforced filler, so that the wear resistance is remarkably improved; a self-repairing coating technology is introduced into the outer layer, automatic healing of local damage is achieved through a microcapsule structure, the service life of the product is prolonged, and the maintenance cost is reduced.

Disclosed is an invention relating to a coffee maker that variably supports a water supply tube. A coffee maker that variably supports a water supply tube, according to the present invention comprises: a dripper, which receives water and ground coffee via the open upper side thereof, and extracts liquid coffee from the ground coffee and discharges same downward; and a water outlet module which is located above the dripper and supplies water to the inside of the dripper, wherein the water outlet module comprises a water supply tube which supplies water to the mouth of the dripper, a pipeline support part which is installed in a shape so as to surround the outer-side of the water supply tube, a connection frame which extends from the pipeline support part, and a rotational support shaft which rotatably connects the connection frame to a moving housing part of the water outlet module.

The invention relates to a water cannon and a control method thereof, in particular to a metal hose water cannon and a control method thereof, and solves the technical problems that an existing water cannon is difficult to realize a good fluid flowing state and a compact water cannon structure at the same time, the number of bent pipes is large, the bending angle is large, energy loss is easily caused, and the performance of the water cannon is not favorably improved. The metal hose water cannon further comprises a first electric push rod, a first mechanical control unit, a second mechanical control unit, a third mechanical control unit, a horizontal rotating seat and a metal hose. The third mechanical control unit is used for enabling the horizontal revolving bed, the metal hose and the monitor head to rotate around the monitor base so as to adjust the horizontal revolving angle of the water monitor; the first mechanical control unit is used for cooperatively moving with the first electric push rod to adjust the center arc position and form of the metal hose; the second mechanical control unit is used for cooperatively moving with the first electric push rod to adjust the rotation angle of the monitor head. According to the method, the position and angle of the water cannon can be efficiently and stably controlled.

A new type of water pipe, comprising a compressible and foldable axial elastic corrugated inner pipe, with a drainage channel inside; the compressible and foldable axial elastic corrugated inner pipe is composed of multiple coaxial continuous annular folding structures, and can be compressed, folded, and geometrically expanded and elongated along the axial direction under the action of external forces; an braided layer; an elastic outer layer, with high elasticity; the elastic outer layer and the surface area of an outer bending ring of the compressible and foldable axial elastic corrugated inner pipe that is not covered by the elastic braided layer are connected to each other, to form a tightly integrated overall tubular structure. It can be used under both high and low water pressure conditions, can withstand high water pressure and can be extended to a set length under low water pressure conditions to meet customer needs.

The invention discloses a composite vacuum metal hose, and relates to the technical field of vacuum metal hoses. The composite vacuum metal hose comprises an outer-layer corrugated pipe, wherein the two ends of the outer-layer corrugated pipe are connected with outer-layer connecting pipes; the first sliding sleeve and the second sliding sleeve can dynamically adjust the pressure borne by the inner-layer corrugated pipe when a fluid medium passes through the inner-layer corrugated pipe, so that the inner-layer corrugated pipe is prevented from being excessively stretched and extruded, and the resistance of the fluid medium passing through the inner-layer corrugated pipe is further reduced; a fluid medium smoothly enters the inner-layer corrugated pipe, the impact on the inner-layer corrugated pipe is reduced, the adjusting area can automatically and adaptively change according to the pressure of the fluid medium to weaken the pressure brought by the fluid medium entering the inner-layer corrugated pipe, the impact on the inner-layer corrugated pipe by the fluid medium is reduced, meanwhile, the resistance of the fluid medium is reduced, and the service life of the inner-layer corrugated pipe is prolonged. The speed of the fluid medium penetrating through the inner-layer corrugated pipe is increased, and the service life is prolonged.

The invention relates to the technical field of composite pipelines, in particular to a continuous fiber winding reinforced polyethylene composite pipe and a preparation method of the continuous fiber winding reinforced polyethylene composite pipe. The fiber reinforced layer is wound on the inner-layer polyethylene pipe, the outer polyethylene protective layer is wound outside the fiber reinforced layer, and the outer reinforced pipe is wound on the surface of the outer polyethylene protective layer. The continuous fiber winding reinforced polyethylene composite pipe prepared by the invention has excellent flexibility, the production process is simple, the production efficiency is high, and all production procedures of multi-layer compounding can be realized through one station.

The utility model relates to the technical field of hydrogen filling hoses, in particular to a hydrogen filling hose with a fracture protection function, which comprises two groups of connectors, a protection hose and a gas transmission hose are connected between the two groups of connectors, the gas transmission hose is positioned on the inner side of the protection hose, and the left end of the left connector is connected with a gas transmission head. An air conveying valve is arranged in the air conveying head, the right end of the right side connector is connected with an air inflation head, and an air inflation valve is arranged in the air inflation head. The leaked hydrogen can be filled to the inner side of the protective hose, so that the inner side of the protective hose is inflated and swelled, the problem of hydrogen leakage can be found in time and concrete, the gas transmission valve and the inflation valve can be closed in time, continuous hydrogen leakage is avoided, the leaked hydrogen can be stored in the inner side of the protective hose, and the hydrogen is prevented from being diffused into the air; and the operation production safety is improved.

Provided are linear low density polyethylene (LLDPE) compositions including a LLDPE polymer and from 100 ppm to 10,000 ppm of a polymer processing aid (PPA) that is substantially free of fluorine-containing compounds. The non-fluorine-containing inventive PPAs may be a polyphosphite, a polysiloxane, a polyethylene glycol, a high MFR polypropylene, a high MFR polybutene-1, a metal salt of a fatty acid, a polyamide, or a boron nitride. Also provided are polyolefin masterbatches including from 1 wt. % to 50 wt. % of such inventive PPAs and methods of decreasing melt fracture % in linear low density polyethylene films by blending such inventive PPAs and polyolefin masterbatches into cast films and blown films during extrusion processing.

The invention provides an ultra-high molecular weight polyethylene fiber woven reinforced polyethylene / polyvinyl chloride composite pipe and a preparation method thereof. The composite pipe is of a five-layer composite structure and comprises a high-density polyethylene core pipe on the inner layer, an ultra-high molecular weight polyethylene fiber woven reinforcement layer on the middle layer, a polyvinyl chloride coated pipe on the outer layer, a first adhesive layer and moisture curing reaction type polyurethane hot melt adhesive on the second adhesive layer. The preparation method of the composite pipe comprises the steps of inner layer core pipe preparation, polyurethane hot melt adhesive coating, fiber woven reinforcement layer forming, secondary polyurethane hot melt adhesive coating, outer layer wrapping and the like. The fiber performance is protected by adopting a low-temperature process, and efficient bonding is realized; the ultra-high molecular weight polyethylene fibers are alternately woven and wound to form the grid reinforcing layer, so that the pipe is endowed with high strength and impact resistance. The problems that a traditional composite pipe is prone to layering between layers, insufficient in pressure bearing capacity, complex in construction connection and the like are solved, and the composite pipe has the advantages of being high in strength, resistant to corrosion, easy to connect and the like.

The utility model relates to the technical field of braided tubes, and discloses a novel braided tube for medical equipment, which comprises a medical flow guide inner tube, a heat-resistant outer tube is arranged on the outer side of the medical flow guide inner tube, and annular anti-folding rings are equidistantly arranged on the outer tube of the medical flow guide inner tube. And anti-bending transverse belts are uniformly arranged on the inner wall of the heat-resistant outer pipe. According to the utility model, when the heat-resistant outer tube wraps the outer side of the medical flow guide inner tube, the annular anti-bending ring and the anti-bending transverse belt are mutually folded, wrapped, tightly woven and connected into a whole, so that the anti-bending weaving effect is achieved, and the inner side positioning tube and the outer side positioning tube respectively play a role in bearing and fixing the annular anti-bending ring and the anti-bending transverse belt; the puncture-proof braided tube has the puncture-proof and bending-proof effects, so that the device is excellent in bending resistance and crease resistance, the phenomena of wrinkling and bending do not occur easily during medical operation, and the operation is safer and more stable.

A dust blowing gun extension pipe capable of being bent and shaped includes a flexible inner pipe, the flexible inner pipe is sleeved with a spring assembly; an outer portion of the spring assembly is coated with a flexible coating layer, two ends of the flexible inner pipe are respectively connected to a connector assembly, and the connector assembly interacts with the flexible inner pipe to form an air channel; the connector assembly comprises a first connector and a second connector, the first connector is provided with a first extension portion, and the first extension portion is sleeved between the flexible inner pipe and the spring assembly; an end portion of the flexible inner pipe extends into the first connector, an end portion of the flexible inner pipe is provided with a protruding ring, and the first connector is internally provided with a limiting step portion.

The utility model relates to a deep-sea mining delivery pipe, and belongs to the technical field of deep-sea mining delivery pipes. Comprising a conveying pipe body, the conveying pipe body comprises an armored steel sleeve, an inner rubber sealing layer, a first pressure-bearing layer, a spiral steel wire framework layer, a second pressure-bearing layer, a cable and optical cable layer and an outer protection layer which are sequentially arranged from inside to outside, one end of the conveying pipe body is provided with a fixed flange connector connected with a relay station, and the other end of the conveying pipe body is provided with a clamp connector connected with a mine collecting machine. The nitrile rubber is used as the inner rubber sealing layer, and the chloroprene rubber and the natural rubber are used as the outer protective layer, so that the oil resistance, seawater corrosion resistance and aging resistance of the conveying pipe are improved, and the service life of the conveying pipe is prolonged; sS316 stainless steel is used as the armored steel sleeve, so that the hardness and the wear resistance of the conveying pipe can be improved; the first pressure-bearing layer, the spiral steel wire framework layer and the second pressure-bearing layer play a supporting role and bear radial pressure, so that the compression resistance of the conveying pipe is improved, and the service life is prolonged.

The invention relates to the technical field of rubber materials, and provides a flame-retardant rubber hose and a preparation method thereof. The flame-retardant rubber hose comprises an inner rubber layer, a reinforcing layer and an outer rubber layer, and raw materials of the inner rubber layer and the outer rubber layer respectively and independently comprise the following components in parts by weight: 10-15 parts of MQ silicone rubber, 85-90 parts of nitrile rubber, 3-7 parts of 3-carboxyl-4-hydroxy-acetoacetanilide modified graphene, 35-45 parts of filler, 1-3 parts of an anti-aging agent, 5-10 parts of a plasticizer, 2-5 parts of an activating agent, 1-2 parts of a vulcanizing agent and 0.5-1.5 parts of an accelerant. According to the technical scheme, the problem that the rubber hose in the prior art is insufficient in mechanical property and flame retardant property is solved.

The present invention provides a pipe and a range hood, and relates to the technical field of fluid flow equipment of kitchen appliances. The pipe wall of the pipe comprises an inner layer and an outer layer, the inner side of the inner layer forms a fluid channel, the outer layer is sleeved on the outer side of the inner layer, and a sealed cavity is formed between the outer layer and the inner layer, and a filling port for filling material to enter the sealed cavity is provided on the outer layer and / or the inner layer; the sealed cavity has a filled state and a non-filled state, and in the non-filled state, the pipe wall can be folded for storage; from the non-filled state to the filled state, the sealed cavity gradually expands to stretch the pipe wall; in the filled state, the pipe wall can maintain stretching to allow fluid to pass through; the storage of the pipe in a non-use environment and the stretching of the pipe in a use environment are achieved by changing the state of the sealed cavity, rather than relying on stretching in the form of folds, which can reduce the loss of the fluid along the way, and when used as an air outlet pipe of the range hood, the oil discharge performance of the range hood is improved.

The invention discloses a variable stiffness pipe and a continuum robot variable stiffness module, and relates to the technical field of continuum robotics.The variable stiffness pipe comprises a flexible inner pipe and a flexible outer pipe arranged outside the flexible inner pipe in a sleeving mode, and a phase change material and a flexible heat exchange device are arranged between the flexible inner pipe and the flexible outer pipe; the heat exchange device can exchange heat with the phase-change material and enable the phase-change material to be changed from a solid phase to a liquid phase, a flexible pipe is further arranged in the filling space, a plurality of hollow groove sets are formed in the pipe wall of the flexible pipe in a penetrating mode, the hollow grooves are filled with the phase-change material, the flexible pipe can be freely bent when the phase-change material is in the liquid phase, and the flexible pipe can be bent when the phase-change material is in the solid phase. According to the variable-stiffness continuum robot, the shear modulus resisting shear deformation under the shear stress is converted into the compression modulus resisting compression deformation under the compression stress, the stiffness of the variable-stiffness pipe can be improved, the variable-stiffness continuum robot comprises the variable-stiffness pipe and a control mechanism, and the variable-stiffness continuum robot can be controlled by controlling the stiffness of the variable-stiffness pipe to change. And the motion control module is matched to move towards the target position and control the surgical tool.