Classifications

• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
  • F16L33/00—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses
  • F16L33/24—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses with parts screwed directly on or into the hose
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
  • F16L11/00—Hoses, i.e. flexible pipes
  • F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
  • F16L11/10—Hoses, i.e. flexible pipes made of rubber or flexible plastics with reinforcements not embedded in the wall
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
  • F16L11/00—Hoses, i.e. flexible pipes
  • F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
  • F16L11/11—Hoses, i.e. flexible pipes made of rubber or flexible plastics with corrugated wall
  • F16L11/115—Hoses, i.e. flexible pipes made of rubber or flexible plastics with corrugated wall having reinforcements not embedded in the wall
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
  • F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
  • F16L19/02—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member
  • F16L19/0212—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member using specially adapted sealing means
  • F16L19/0218—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member using specially adapted sealing means comprising only sealing rings
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
  • F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
  • F16L19/02—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member
  • F16L19/025—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member the pipe ends having integral collars or flanges
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
  • F16L37/00—Couplings of the quick-acting type
  • F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
  • F16L37/084—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking
  • F16L37/088—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of a split elastic ring
  • F16L37/0885—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of a split elastic ring with access to the split elastic ring from a radial or tangential opening in the coupling

Definitions

• the invention relates to the water supply and can be used for the needs of domestic and drinking water supply, in particular for water distribution structures, providing for the connection of flexible pipelines by means of sleeves or couplings, the connection of flexible pipelines to each other with devices for gripping the hose between the inner and outer parts, the connection of flexible pipelines to the rigid elements of water supply systems.
• an elastic pipeline which consists of an elastic pipeline including an inner pipe with a layer of cord filaments, a spiral wire winding and an outer pipe, and where the axial channel of the inner pipe grips the lower end of the nipple with a notch on its outer side facing towards the elastic pipeline, a female connecting thread on the upper opposite end and an annular protrusion on the outside, whereon the union nut rests mounted on the outer annular protrusion of the nipple, which is provided with a male connecting thread, onto which a coupling is screwed to enclose the outer pipe, here, an annular groove is made inside the coupling with a cylindrical section turning into a conical section, whereas the conical section of the coupling is provided with dies equipped with an internal screw-type notch facing the body of the inner pipe of the elastic pipeline, and a cylindrical groove is made at the dies location on the outer pipe section, with the release of the spiral wire winding turns and preservation at the end of the section of the
• the problem solved by this invention is the creation of a flexible pipeline with an increased service life, providing multiple quick and convenient connection of flexible pipelines to pumps, filters, valves and other elements of water supply systems, as well as the expansion of the flexible pipeline range.
• the technical result that ensures a solution to this problem is to simplify and unify the fittings design, to ensure produce-ability for the assembly of flexible pipelines with fittings, increase the durability and reliability of the seals, ensure tightness under the required overpressure value.
• the flexible pipeline comprises an elastic hose with an external spiral winding, a connecting fitting at each end of the elastic hose in the form of a connecting pipe and a coupling, the corresponding end of the specified hose is sealed therebetween, each coupling being equipped with an internal spiral groove having a turn pitch equal to the turn pitch of the spiral winding of the hose screwed into the coupling, and the connecting pipe with a cylindrical surface, pressed into the hose at the section of the latter screwed into the coupling, and with a protruding threaded part, while at each end of the hose the connecting pipe and coupling are secured against mutual movement by means of a retaining ring installed in a groove made on the outer surface of the connecting pipe and protruding through the windows made in the coupling wall.
• each connecting pipe is made inclined with conical protrusions.
• the elastic hose is made of food-grade plasticized polyvinyl chloride.
• the elastic hose is equipped with an outer spiral wire winding of polyvinyl chloride.
• the retaining ring is made split from the spring material, with flat side surfaces and with a cut, which ends protrude into the windows made in the coupling wall.
• each coupling is configured with a transverse profile similar to that of the outer spiral winding.
• the fittings attached to each end of the elastic hose are made of flexible material in the form of coaxially mounted connecting pipe and coupling.
• the coupling at each end of the elastic hose is equipped with a cylindrical girdle in which windows are made for the retaining ring, and with a conical outer surface along the inner spiral groove.
• radial stiffeners are made on the conical outer surface of the coupling.
• the connecting pipe at one end of the elastic hose is provided with a union nut and an elastic seal.
• Figure 1 shows a longitudinal section of a flexible pipeline with clamps of connecting fittings
• Figure 2 is a drawing of a coupling in section, frontal and side projections
• Figure 3 is a general view of a flexible pipeline.
• the flexible pipeline contains an elastic hose 1 with an external reinforcing spiral winding 14, connecting fittings at each end of the elastic hose in the form of a through connecting outlet or inlet connecting pipes 3, 4 respectively, and one of two identical couplings 2, between which (each connecting pipe 3, 4 and the coupling 2) there is a sealed corresponding end of hose 1.
• Each coupling 2 is hollow with an internal spiral groove 10 along the longitudinal axis of symmetry of coupling 2.
• the spiral groove 10 of coupling 2 has a turn pitch equal to the turn pitch of hose spiral winding 14.
• Each end of hose 1 is screwed completely into coupling 2.
• Each connecting pipe 3 and 4 is made with a cylindrical surface, pressed coaxially into coupling 2 at the corresponding end of elastic hose 1 in the area of the latter screwed into coupling 2, and protruding outward (from hose 1) threaded part (not shown).
• connecting pipe 3 or 4 and the corresponding coupling 2 are fixed in a concentric position to each other against mutual movement by means of retaining ring 5 mounted in a groove made on the outer surface of connecting pipe 3 and 4, and protruding in window 13 made in coupling 2 wall.
• Elastic hose 1 is made of food-grade plasticized polyvinyl chloride (PVC).
• Elastic hose 1 is equipped with an outer spiral wire winding 14 of polyvinyl chloride (PVC).
• Retaining ring 5 is made split of the spring material, with flat side surfaces supported on flat walls 11, 12 of one or more windows of coupling 2 and with a cut, which ends protrude into windows 13 made in coupling 2 wall.
• each coupling 2 is configured with a transverse profile, similar to the configuration of wire outer spiral winding 14.
• the fittings mounted on each end of elastic hose 1 are made in the form of coaxially mounted connecting pipe 3 or 4 and one of couplings 2.
• Coupling 2 at each end of elastic hose 1 is made with a cylindrical girdle in which windows 13 for retaining ring 5 are made, and with a conical outer surface along inner spiral groove 10.
• radial stiffeners are made in the form of conical protrusions 15.
• At least one (input) connecting pipe 4 at one end of elastic hose 1 is provided with union nut 6 on fitting’s threaded part, and elastic seal 7.
• Flexible pipeline is assembled and used as follows.
• Couplings 2 are mounted to the ends of hose 1; the couplings have spiral groove 10, repeating the configuration of reinforcing spiral 14 of hose 1. As a result, it is possible to screw hose 1 into coupling 2 until it stops, while the corresponding part of the turns of the spiral winding 14 is located in turns spiral grooves 10 of couplings 2. After installing both couplings 2 in hose 1 with the help of simple industrial equipment, inlet and outlet connecting pipes 3 and 4 are pressed in tightly with their cylindrical surface.
• each end of hose 1 its wall is compressed between the outer surfaces of connecting pipes 3, 4 and the inner surfaces of couplings 2.
• the turns of spiral winding 14 of hose 1 are clamped in the radial direction and fixed on their outer surface mating with the inner surface of the turns of spiral of grooves 10 of each coupling 2, from any radial or longitudinal displacement or unscrewing, which ensures the strength and tightness of the pipe fittings.
• Each connecting pipe 3 and 4 has conical protrusions (inclined notches) on its cylindrical surface pressed into hose 1, creating additional contact pressure on the material of hose 1 and preventing it from sliding off connecting pipes 3 and 4.
• the hose 1 is reliably held by reinforcing spiral 14, which is in a compressed state in groove 10 and simultaneously fulfills the function of an extended seal of the inner surface of coupling 2 from environmental pollution.
• each coupling 2 and connecting pipes 3 or 4 are mutually fixed by split retaining ring 5 located in the groove of connecting pipe 3 and 4 and windows 13 of coupling 2.
• ring 5 is initially completely forced into the groove of connecting pipe 3 and 4, and then protrudes from this groove, since it increases in diameter due to its spring properties, after connecting pipes 3 and 4 are completely pressed with their cylindrical surface into hose 1.
• each ring 5 in the axial direction is bounded by the walls of the grooves of connecting pipes 3 or 4 and the walls (planes) 11 and 12 of window 13 of coupling 2, as a result, the specified fitting (coupling and connecting pipe) is reliably fixed in a state that is fastened together at each of the end sections of hose 1 and its winding 14.
• Inlet connecting pipe 4 is equipped with union nut 6 and elastic seal 7 for quick connection to a pump or other components of the water supply system having a corresponding counterpart.
• Outlet connecting pipe 3 has a configuration that allows to connect inlet connecting pipe 4 of the adjacent hose to it, etc. for jointing a single or branched water supply line from the required number of standardized hoses.
• the inlet and outlet connecting pipes 3, 4 can be interchanged, depending on the configuration of the water supply system and the composition of its equipment. Pipeline repair is possible, including, if necessary, at the place of operation.
• the operation of the flexible pipeline ensures the water flow from a pump to consumers connected by flexible pipelines to the water supply system.
• This design allows for tightness at the required overpressure in the hose of the flexible pipeline.
• the advantage of the invention is durability, since each end of the hose is securely and tightly sealed between the coupling and the connecting pipe, as well as the convenience and speed of pipeline installation when used by the consumer, the low cost and high manufacturability of both single and serial production of sets of flexible pipelines with connecting fittings.
• the present invention is implemented with multipurpose equipment extensively employed by the industry.

Landscapes

• Engineering & Computer Science (AREA)
• General Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Rigid Pipes And Flexible Pipes (AREA)

Priority Applications (2)

Applications Claiming Priority (2)

Publications (2)

Family

ID=72044515

Family Applications (1)

Country Status (3)

Cited By (2)

Citations (2)

Family Cites Families (5)

• 2020
  • 2020-02-07 EA EA202100191A patent/EA202100191A1/ru unknown
  • 2020-02-07 WO PCT/RU2020/000061 patent/WO2020167165A2/en unknown
  • 2020-02-07 EP EP20756329.7A patent/EP3924658A4/en not_active Withdrawn

Patent Citations (2)

Non-Patent Citations (1)

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