• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The space between the cover (1) of the fastener and the movable element (3) exerting load on the elastic clamping ring (5) and on the packing (6) is subdivided in two zones, one of these zones being connected with the external supply and the other zone - with the internal space of the pipe (4) under test, and moreover the movable element (3) besides a conical surface (13) serving for clamping the ring (5) on the pipe (4) has also another conical surface (14), cooperating with the conical surface (16) of the ring (5) thus causing its expansion during the operation of taking the fastener away from the pipe (4) after having finished the test. The fastener according to the invention has a higher functionality than the hitherto known fasteners, this superiority being mainly connected with the fact that the forces causing clamping the elements of the fastener on the pipe (4) under test derive from the internal pressure in the pipe (4), what makes possible on the one side the disconnection of the internal supply during long-term test, and on the other side warrants a correct proportion between this pressure and the forces clamping the fastener elements on the pipe (4).
    公开号:SU1607696A3
    申请号:SU884355773
    申请日:1988-05-27
    公开日:1990-11-15
    发明作者:Фредрих Павел；Плачэк Веслав；Мынаж Лешек；Карпиньски Кшиштоф；Гашэвски Ежи
    申请人:Институт Хэмии Пшемыслоэй (Инопредприятие)；
    IPC主号:
    专利说明:

    / g /
    The invention relates to mechanical engineering and can be used for hydrotesting pipes for tightness.
    The purpose of the invention is to improve the reliability and unloading of the water supply system 1 to move the pressure element in time for lengthy tests.
    FIG. 1 shows a clamp for sealing the ends of the pipes, continue cutting; Fig, 2 is a section A-A in Fig.1.
    The clamp for sealing the pipe ends contains a cap 1 and a collar 2, inside which an elastic conical clamping ring 3 is installed, and between it and crest 1 there is an annular movable pressure element 4 with a conical surface, which is installed with the possibility of interaction with the clamping ring 3, kapan 5 for supplying the test medium and channel 6 for supplying water to the displacement of the pressure element 4. An elastic gasket 8 is installed between the pressure element 4 and the end of the pipe 7,
    The clamp is equipped with additional gaskets 9, 10 and 11. On the outer side of the pressure element 4 in its lower part there is an annular boring with the formation of an additional annular cavity 12 between the pressure element 4, the cover 1 and the yoke 2.


    ten
    five
    about
    0
    five
    nicheskimi. The valve 19 provides water to the cavity 12,
    The clamping works as follows. Water is supplied by means of valve 5 and an increased pressure is created, while water penetrates into the cavity bounded by the cap 1, the movable pressure element 4 and the gaskets 9, 10, causing the element 4 to move in relation to the cover 1, while the surface 16 is separated from the surface 18, and the projection surface 15 interacts with the surface 17 of the groove. The movement of the pressure element 4 causes the diameter of the elastic clamping ring 3 to decrease until it is connected to the wall of the pipe 7, and the end of the pipe 7 is clamped by the ring 3.
    To remove the clamp from pipe 7, it is necessary to open valve 5 and relieve pressure in pipe 7, and through valve 19 and channel 6 to supply water to cavity 12. Under water pressure, element 4 moves upward, the conical surface 15 of the protrusion separates from the surface 17 of the groove and the protrusion surface 16 interacts with the surface 18 of the groove, causing an increase in the diameter of the elastic ring 3. The element 4 moves against the stop into the cover 1.
    Additional cavity 12 communicates with channel 6 of the water supply for agitated, pressure element 4, the cavity between the cover 1 and the pressure element 4 communicates with the cavity of the pipe 7 under investigation.
    The first additional gasket 9 is installed between the lid 1 and the inner surface of the pressure element 4, the second additional gasket 10 is between the outer surface of the pressure element 4 in its upper part and the lid 1, the third additional gasket 11 is between the outer surface of the pressure element 4 in its lower part - parts and clip 2.
    In the lower part of the flange 1 and the upper part of the holder 2, radial grooves 13 and 14 are made, one relative relative to another at a constant angular step. An annular protrusion is made in the lower part of the pressure element 4, and a counter groove is made in the upper part of the clamping ring 3, while the side surfaces of the protrusion 15, 16 and the side surfaces of the groove 17, 18 are made
    0
    five
    0
    five
    权利要求:
    Claims (2)
    [1]
    1. Clamp dp sealing the ends of pipes, contain a lid and a clip, inside which there is an elastic conical clamping ring and between it
    and a cover — an annular movable pressure element with a conical surface mounted with the possibility of interaction with a clamping ring; a water supply valve for moving the pressure element; an electric gasket is installed between the last and the pipe end, characterized in that unloading of the water supply system 1 for moving the pressure element during long tests, the device is provided with additional elastic and gaskets, on the outside of the pressure element and in its lower part there is an annular bore with the formation of an additional annular cavity between the pressure element, the lid and the yoke, while the additional cavity communicates with the water supply channel for moving the pressure element, the cavity between the cap and the pressure element communicates with the cavity of the investigated l & l, first an additional gasket is installed between the lid and the inner surface of the pressure element, the second - between the outer surface of the pressure element in its upper part and the cap, a third - between the load zhnoy surface of the pressure member in its lower part and a holder, and in the lower part of the lid and the top of the cage made radialn1e grooves.
    Editor M.Kelemes
    Tehred L. Serdyukova
    Circulation 575
    Subscription
    Order 3556
    VNSHY State Committee for Inventions and Discoveries at the State Committee on Science and Technology of the USSR 113035, Moscow, Zh-35, 4/5 Raushsk nab.
    Production and Publishing Combine Patent, Uzhgorod, st. Gagarin, 101
    displaced relative to one another at a constant angular step.
    [2]
    2. The clamp according to claim 1, which differs from the fact that at the lower part of the pressing element there is an annular protrusion, and in the upper part of the clamping ring there is a counter groove, while the lateral surfaces of the protrusion and the groove are conical. Priority
    05/29/87 Under Clause I;
    03/19/88 in clause 2.
    points
     BUT
    FIG. g
    Corrector S.Cherni
    Subscription
    类似技术:
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    引用文献:
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    RU195980U1|2019-12-27|2020-02-12|Общество с ограниченной ответственностью "ДЕЛЬТА ИНЖИНИРИНГ"|In-pipe cuff|DE1550004B1|1967-01-07|1969-12-18|Kieserling & Albrecht|Device for one-sided closing and clamping of hollow bodies, especially pipes for pressure tests|
    FR1514706A|1967-03-17|1968-02-23|Apparatus for testing the tightness of pipes for conveying pressurized fluids|
    PL71333B1|1970-09-21|1974-06-29|
    FR2195320A5|1972-08-04|1974-03-01|Elf Union|
    US3963054A|1974-08-01|1976-06-15|Martin Carlyle J|Seal assemblies for water-well casings|
    US4077250A|1977-02-16|1978-03-07|Wesch William E|Pipe closure apparatus|
    US4197733A|1979-03-28|1980-04-15|Holland Richard W|Pressure test apparatus|
    PL132463B1|1982-08-27|1985-03-30|Instytut Chemii Przemyslowej|Holder for pipes made of plastics tested with internal pressure at temperatures up to 200 degrees c|
    CS266587B2|1985-05-31|1990-01-12|Inst Chemii Przemyslowej|Holder for closing and packing of tubes' ends exposed to internal pressure|
    FR2602866B1|1986-08-14|1989-07-28|Alsthom|SHUTTER HEAD FOR HYDRAULIC TUBE TEST BENCH|US5676174A|1995-06-23|1997-10-14|Est Group, Inc.|Outer diameter pipe plug|
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    US7117892B2|2003-10-24|2006-10-10|Hiltap Fittings, Ltd.|Quick disconnect valve assembly|
    CN101809421B|2007-08-07|2013-07-10|艾克森塞股份公司|Liquid level measurement device and method|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    PL26596487A|PL156236B1|1987-05-29|1987-05-29|Holder for closing and sealing of pip ends subjected to internal pressure|
    PL27110488A|PL158265B3|1988-03-10|1988-03-10|Grip for closing and sealing the ends of pipes containing pressurized medium|
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