The metal hose

 

(57) Abstract:

The hose is designed for use in high pressure systems. In the side surface of bushing set screw locking with two smooth cylindrical ends, one of which communicates with a through longitudinal slot made in the Union nut and the other with a longitudinal groove of the nipple. The diameters of the smooth cylindrical ends of the screw is less than the width of the groove Union nut and nipple. The outer diameter of the thread of the screw is greater than the width of the slots of nut and screw length less polprasert internal thread diameter of the sleeve and the diameter of the location of the bases of the grooves of the nipple, but more polprasert outer diameter of the thread of the sleeve and the outer diameter of the nipple. The result is improved reliability of the hose. 2 Il.

The invention relates to the field of engineering, namely, hoses, and can be used in hydraulic and pneumatic high pressure systems.

Known metal hoses (OST 5P.5351-78 and THE 5.551-10138-82), consisting of the shirred casing, wire braid and end fittings.

A disadvantage of the known metal hose is the inability of the detuning from resonance modes in the F 16 L 33/01, Bull. N 16, 1980), selected as a prototype, containing a flexible camera mounted on the nipple having longitudinal grooves, and a metal braid, mounted on the sleeve installed between the coupling nut and nipple with the possibility of axial movement.

A disadvantage of the known flexible multi-layer sleeve is a low reliability because of the possibility of screwing the Union nut in the process sleeves installed in on revealing system.

The problem solved by the invention is to enhance reliability of the metal hose.

The invention consists in that the metal hose containing a flexible camera attached to the nipple having longitudinal grooves, and a metal braid, mounted on the sleeve between the cap nut and nipple with the possibility of axial movement in a side surface of the bushing set screw locking with two smooth cylindrical ends, one of which communicates with a through longitudinal slot made in the Union nut and the other with a longitudinal groove of the nipple, and the diameters of the smooth cylindrical ends of the screw is less than the width of the groove Union nut and nipple, and the outer thread diameter of the screw more chiropractie bases of the grooves of the nipple, but more polprasert outer diameter of the thread of the sleeve and the outer diameter of the nipple.

The invention is illustrated by drawings: Fig. 1 shows a General view of the metal hose with a slit; Fig. 2 - section a-a in Fig. 1.

The metal hose is a flexible camera 1 attached to the nipple 2 by means of the ring 3. The nipple 2 has longitudinal grooves 4. Metal braid 5 is fixed on the sleeve 6 by the ring 7. Moving the nut 8 in the axial direction prevents the annular flange 9, is made on the nipple 2. In the side surface of the sleeve 6 is placed a locking screw 10 with two smooth cylindrical ends, one of which communicates with a through longitudinal slot 11, is made in the Union nut and the other with a longitudinal groove 4 of the nipple 2.

The metal hose is as follows.

The offset of the hose from the resonant frequency while the product is carried out as follows: first, the screw 10 is screwed into the sleeve 6 until such time as the upper cylindrical end will not be installed below the internal thread diameter of the sleeve 6, and then adjusts the tension of the braid 5 when screwing or loosening of the Union nut 8, colorability screw 10 has been living in one of the grooves 11 cap nut 8 until until you run into her at the same time secures the position of the sleeve 6, the Union nut 8 and pin 2 relative to each other.

The proposed structure of the metal hose can improve its reliability.

Hose metal containing flexible camera attached to the nipple having longitudinal grooves, and a metal braid, mounted on the sleeve installed between the coupling nut and nipple with the possibility of axial movement, characterized in that the side surfaces of the bushing set screw locking with two cylindrical ends, one of which communicates with a through longitudinal slot made in the Union nut and the other with a longitudinal groove of the nipple, and the diameters of the smooth cylindrical ends of the screw is less than the width of the groove Union nut and nipple, and the outer diameter of the thread of the screw is greater than the width of the slots of the collar nut, and screw length less polprasert internal thread diameter of the sleeve and the thread diameter of the sleeve and the diameter of the location of the bases of the grooves of the nipple, but more polprasert outer diameter of the thread of the sleeve and the outer diameter of the nipple.

 

Same patents:

FIELD: technology for making metal sleeves used under conditions of high temperatures and aggressive environments, for example, in metallurgy for feeding oxygen into oxygen converter, in automobile engineering in systems for discharging exhaust gases of automobiles.

SUBSTANCE: flexible metal sleeve contains bellows mated with sleeve and metallic armor and barrel positioned coaxially on their external surface. Inside the armor on mated end of recess of corrugation of bellows cut ring is positioned. Mated rectilinear portion of corrugation of bellows is held between ring and end surface of sleeve. Ends of bellows and sleeve are connected by welded seam, made on side surface of sleeve and ring along the edge of clamped section of bellows. In particular case of realization of metal sleeve, width of cut ring is equal to width of recess of corrugation of bellows, and its thickness is equal to length of rectilinear portion of corrugation of bellows, while armor, barrel and sleeve are connected by single welded seam.

EFFECT: production of quality welded seam of bellows to flange due to prevented burn-through defects while simultaneously decreasing requirements to qualification of welder.

3 cl, 2 dwg

FIELD: constructional engineering.

SUBSTANCE: invention refers to pipeline design. Piping assembly contains conducting corrugated pipeline, including rising and falling coils, conducting polymer shell arranged along the length of the said corrugated pipeline the aforesaid polymer shell providing conductivity from shell to conducting pipeline having maximum bulk resistivity of about 7×104 Ohm·cm to provide conductivity of electric charge from external surface of polymer shell through conducting polymer shell to conducting metal corrugated pipeline. According to the second version of piping assembly design, the said thermoplastic polymer has minimum tensile strength of about 28 MPa, minimum elongation of about 300%, minimum flexural modulus of about 170 MPa and maximum bulk resistivity about 7×104 Ohm·cm. Assembly is provided with fitting jointed to the said corrugated pipeline on its end.

EFFECT: production of polymer shell of improved conductivity of electric charge to conducting metal corrugated pipeline.

13 cl, 1 dwg, 1 tbl

FIELD: machine building.

SUBSTANCE: invention refers to production of flexible metal hoses. According to the method first a set of parts is prepared; the set is composed out of not upset or partially upset by length and transverse corrugated chamber with flat end, of wire braiding, of bearing sleeves and of external rings and cartridges. Further the hose is assembled, in the process of which the flat ends of the corrugated chamber are arranged coaxially between the external end and the bearing sleeve and connected between them by contact seam welding. The corrugated chamber is covered from outside with wire braiding. The ends of braiding are arranged coaxially between the external cartridge and the bearing sleeve and welded to each other. The feature of the method is the following: before assembly the corrugated chamber taken from the prepared set is subject to complete upset by length, while coating the corrugated chamber with braiding, coaxial arrangement of its ends between the external cartridge and the bearing sleeve, and connecting ends by welding is performed while the corrugated chamber is compacted with axial force value of which is determined out of expression: where: H is maximal depth of hose submersion during operation, m, γ is density of water, g/cm3; Dy is internal diametre of the corrugated chamber, cm, h is height of corrugation profile, cm.

EFFECT: increased life of metal hose under condition of under water operation.

5 dwg

FIELD: construction.

SUBSTANCE: group of inventions relates to drain bellows, more specifically, to sets of flexible drain bellows, having a flexible part with a preferably smooth surface, and methods of assembly and installation of such flexible devices. According to one of versions of realisation, the set of drain bellows comprises a bellows having the first and second ends and a catching part between the first and second ends, a connector with a sanitary device, a Y-shaped fitting and a drain connection, comprising a flexible hose, having preferably a smooth inner surface. One of versions of the method for installation of the drain bellows between the drain of the sanitary device and the outlet end of the drain pipe consists in the fact that they assemble a drain bellows, a connector with a sanitary device is connected to the drain of the sanitary device. The drain connection is matched with the outlet end of the drain pipe, and it is connected to the outlet end of the drain pipe. The first combined end, the second combined end and the outlet end of the Y-shaped fitting determine the first, second and third longitudinal axes. The first and third longitudinal axes determine the first plane, and the second and third longitudinal axes determine the second plane, which is different from the first one.

EFFECT: group of inventions provides for trapping of smokes, gases and smells in a system of drainage pipes.

27 cl, 12 dwg

FIELD: process engineering.

SUBSTANCE: invention relates to production of crimped heat-insulated pipeline. Pipeline comprises at least one inner pipe, crimped outer pipe spaced therefrom and made of synthetic material and a ply of foamed synthetic material to fill the spacing between both pipes. First, ply of foam is applied to inner pipe to extrude outer pipe thereat. After extrusion of outer pipe, forming tools are used to make crimps on foam ply.

EFFECT: higher flexibility of pipe.

15 cl, 3 dwg

FIELD: gas industry.

SUBSTANCE: corrugated gas line is intended for transportation of gases and gas-liquid mixtures. Corrugated pipeline comprises at least one corrugated tube section, the ratio of rib interval is within 0.3-0.9, and the ratio of amplitudes is within 0.8-1.2, besides, it is equipped with a flat support plate and at least two attached to the support plate fastening brackets that have internal diameter corresponding to the outer diameter of corrugated pipe section, and covering the outer surface of the corrugated pipe section to allow bending of corrugated pipe section located between fastening brackets, with curvature radius equal to 2-4 diameters of corrugated pipe section.

EFFECT: technical result consists in increase of efficiency of suppressing noise and vibration that occur due to instability of inner flow of pumped medium in flexible pipelines with corrugated wall.

1 cl, 1 dwg

Flexible conduit // 2594086

FIELD: production of fittings.

SUBSTANCE: invention relates to a flexible pipe for transporting a pressurized, free-flowing medium. Conduit consists of two cross-corrugated to their longitudinal direction tubes made of metal, which are arranged with the gap with the inclusion of a ring spaced concentric with each other. In the annular gap between both pipes there is a vacuum isolation. Outside on the inner tube is a solid reinforcement train is applied, which is fixedly connected to the same at both ends of the inner tube. It consists of tension-resistant strands which, helically one above the other in at least two layers having opposite lay direction wound around the inner pipe.

EFFECT: at using the invention design of the conduit is simplified.

1 cl, 4 dwg

FIELD: metallurgy; technological processes.

SUBSTANCE: present invention relates to a scope of metal forming, particularly, to method for manufacturing watertight, corrugated metal pipes. Longitudinal corrugations are formed on a strip of metal sheet by successive passages between counterposed corrugating barrels having alternated, circumferential ridges on their outer surfaces The opposite, longitudinal lips of the strip are bent in opposite directions. Then the strip of metal sheet is coiled into a helical shape, whereby the opposite, longitudinal lips overlap laterally. Before the opposite, longitudinal lips are crimped together between counterposed crimping rollers, a rubber gasket is fitted to one of the opposite longitudinal lips. Gasket has a bent profile capable of embracing the longitudinal lip at least partially. Whereby the material of the gasket, by effect of the crimping pressure, is reduced in thickness and deformed plastically at least in certain areas of the longitudinal lips which are biased against each other by the crimping action.

EFFECT: use of a rubber gasket with bent profile results in increased watertightness of the pipe.

10 cl, 11 dwg

Up!