• 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:
    A pipe connector comprises an internally threaded female member and an externally threaded male member for threaded engagement in the female member. When the members are fully engaged together, an axially and radially directed surface at the free end of one of the members, e.g. the male member, is abutted against a corresponding surface on the other member, e.g. the female member. The surface comprises radially inwardly and outwardly curved surface portions which are relatively dimensioned to be a radial force fit such as to cause deflection of the end portion of the free end of the male member away from the female member as the members are brought into full engagement to bring the surfaces into full engagement.
    公开号:SU1489586A3
    申请号:SU853911195
    申请日:1985-06-03
    公开日:1989-06-23
    发明作者:Dzhoffri Kejv Dirden；Donald Norman Dzhons；Katsuo Ueno
    申请人:Khanting Ojlfild Servisiz Yuk；Kawasaki Steel Co；
    IPC主号:
    专利说明:

    The invention relates to couplings for pipes and can be used when transferring pressurized media, such as gas, steam or oil, exploration of fields or oil and gas production. The purpose of the invention is to increase the reliability of the connection - achieved by ensuring that the connected elements are in contact. surfaces. Soi
    The invention relates to couplings for pipes and can be used when transferring media under pressure, such as steam, gas or oil, in the exploration of deposits or in the extraction of oil and gas.
    The purpose of the invention is to increase the reliability of the connection is achieved by ensuring the contacting of the connected elements on three surfaces.
    The pipe coupling has a female threaded element 2 and an male threaded element 1 for a threaded engagement in the female element. When the items are in full power. With each other, the axially and radially directed surface 9-11 at the free end of one of the elements, for example, the covered element, is set end to the corresponding surface 19-21 on another element, for example, the surrounding element. The surfaces include radially inwards and outwards curved surface parts 9-11 and 19-21, the relative dimensions of which are chosen to obtain a radially tight fit to cause the end part of the free end of the male element 1 to deviate from the female element 2 when the elements are fully engaged to put the surfaces into full engagement, 5 Cpt. f-ly, 7 ill.
    2
    Figure 1 shows the connecting ; coupling for pipes, cut; 2 and 3 show details of the coupling, a section; 4 and 5 are the same, during the mutual engagement of the elements *, in FIGS. 6 and 7, the coupling sleeve, variants.
    Coupling contains covered 1 and covering 2 elements. In this embodiment, the female element 2 is composed
    »8TS 1489586 A 3
    1489586
    four
    part of the sleeve 3, which also provides the second female element for connection with the second male element “Each male element 1 is provided with a pipe 4 at the end and can be made embedded with a pipe pipe or manufactured separately and welded to it or attached in another way.
    Each male element 1 has a generally truncated-conical outer peripheral surface 5, which is threaded, and each female element 2 has a corresponding truncated-conical internal peripheral surface 6, which is also provided with a thread for installation and engagement with the corresponding male element. The thread on the peripheral surfaces ends near the free ends 7 of the male elements 1 and the corresponding internal ends of the 6 surfaces of the female element and, when the elements are fully engaged with each other, a generally axially directed surface at the free end of each male element is inserted into the sealing butt joint with the corresponding opposite, mainly axially directed surface on the flange 8 of the surrounding element about
    The free end 7 of the male element 1 is provided with a first radially outward and axially directed annular surface part 9, which has a radius of curvature K and a second radially inward and axially directed annular surface part 10 having a radius of curvature K ^. The surface parts 9 and 10 are interconnected by a third annular surface part 13 having a radius of curvature K *, the surface part 11 merging with the surface parts 9 and 10 on lines 1.2 and 13, where the adjacent surface parts have common tangential to eliminate any discontinuity of the curvature of the surface parts 9-11. The third surface part 11 extends along the apex of the end surface of the male element and has a significantly lower radius of curvature than that of the first and second surface parts. For example, the radius of curvature p. ( may be about half the radio,
    The curvature is K 2 , and the curvature radius can be approximately one-tenth of the curvature radius K 2 .
    The first surface part 9 merges with a cylindrical peripheral surface part 14, which forms a tangent to the surface part 9 on line 15. The second end surface part 10 can end at point 16 on the inner surface of the male element. Alternatively, the surface part 10 may merge 15 at point 16 with the fourth truncated-cone surface part 17, as shown by dotted lines, which forms a tangent to the surface part 10 on the 16 ”line.
    20 The surface portion 17 ends on the inner surface 18 of the male member.
    The covering element 2 is provided with surface parts 19-21 and additionally surface part 18, the corresponding surface parts 9-11 and 17 of the covered element, and with the same radii of curvature K ( and. And with the merging lines 22-24, 13 and 16. However, in the enclosing element, the first surface part 19 merges on line 25 with a truncated-conical surface part 26, which can pass, for example, at an angle of 5-30 to the axis and followed by a cylindrical surface part 27. Maximum diameter surface However, the minimum diameter of the surface part 26 is less than the diameter of the surface part 14 and the maximum dimensions of the parts 9 ~ 11 are larger than the dimensions of the parts 19 , 20 and 21.
    Thus, when the elements are screwed into each other, the free end of the male element is guided to its final position by a truncated cone surface of the female element 26 and initially comes into contact with the female element in the 25 0 area. Then gradually they come into contact with the surface 9 and 19 ( 4) with an increasing degree of deformation, ko5
    1489586
    Toraya is initially elastic, and then plastic, so that surfaces 9 and 10 are subject to three-axial stress due to axial compression and $ .and radial internal deflection, or deformation of the end part of the free end 7 of the male element, which is caused by contact between surfaces 9 and 19. When the surface - The junctions 9 and 19 are in full engagement, the surfaces 10 and 20 and 17 and 18, if they are provided, which are in the butt joint, are jerked up (Fig „515. The sizes and arrangement of the surfaces 9-11 and 19-21 are chosen such that when pove The axes 9, 19 and 10, 20 are fully engaged with each other and at design compressive stresses, surfaces 11 and 21 can be in a slightly spaced position or in contact, but in any case they experience significantly less compressive stress than surfaces 9, 19 and 10, 20.
    The tolerance on the radius of curvature of surfaces 9-11 and 19-21 is such that the radius of curvature of surfaces 19 and 20 of the surrounding element is at least 30 equal to or slightly larger than the radius of curvature of surfaces 9, 10 and the radius of curvature of surface 21 is equal to or slightly less than the radius of curvature of surface 11 3 5
    In the proposed coupling, the female element is designed as a sleeve, > however it is equally applicable to the connector in the form of a casing and a pin (FIG. 6), where covered 28 and female 29 elements are made in one piece or attached, for example, by welding or in some other way to the ends of the pipe 4, with the Main axially directed surface (FIG. 2) at the free end 30 of the male element 28 being in butt sealing contact with the corresponding mainly axially 50 Tew (fig.Z) formed through the flange 31 on the female member 29.
    In addition, the invention has been described in relation to a sealing joint between 55 a generally axially directed surface at the free end of the male element and an internal surface on the female element,
    20
    25
    however, it is equally applicable to the connector, where a seal is necessary between a mainly axially directed surface at the free end of the female element and a corresponding surface on the male element (Fig. 7). The axially directed surface at the free end 33 of the female element 29 is in butt sealing contact with the surface provided on the shoulder 32 of the male element. The surface portions corresponding to the surface portions 9-11 are provided at the free end 33, and the surface portions corresponding to the surface portions 19-21 are provided on the flange 32 except that the surface portions corresponding to the portions 9 and 19 are directed radially inward, and not radially 'outwards (therefore, they are called second surface parts), and surface parts corresponding to parts 19 · and 20, are directed radially outward, and not radially inward (therefore, they are called first surface parts). The female element may also be provided with surface parts, the corresponding parts 14 and 17, and the male element may be provided with surface parts, the corresponding parts 26, 27 and 18.
    权利要求:
    Claims (1)
    [1]
    Claim
    1. Coupling for pipes containing an element with an internal thread 4 · battle and an element with an external thread, one of the elements having a free annular surface behind the threaded section and the other element having a free annular surface at its end located in the butt sealing contact on the threaded and free annular mating surfaces, characterized in that, in order to increase the reliability of the connection, the free annular surface at the end of one of the elements is made in the form of the first radially directed and the second axially directed sections, and the third annular section is located between the first and second and smoothly connects them, and the free annular surface of the second element being joined ·
    7
    '1489586
    eight
    made with the first and second annular sections and the third between the first two and smoothly connecting them, with each section of one of the joined element is tightly in contact with the corresponding section of the second element.
    2. Coupling according to claim,}, characterized in that one of the elements is covered by the element, and the other covering element.
    3. Coupling π. one,
    characterized in that one of the elements is the covering element and the other is the covering element. '
    4. Coupling π. 1, characterized in that in the transition zones of the third annular surface of each element in the first and second surfaces, these annular surfaces have common tangents.
    5. Coupling π. 1, characterized in that the radii of curvature of the first and second annular surfaces of other elements are equal to or greater than the radii of curvature of the first and second annular surfaces of one of the elements, while the radii of the first and second annular surfaces of other elements are equal to or less than the radii of the first and second
    15 annular surface of one of the elements.
    6 „Coupling coupling π. 1, characterized in that the radii of curvature of the third annular surface of the other elements are equal to or less than the radii of curvature of the third annular surface of one of the elements „
    1
    1489586
    g 25 19 22
    FI.5
    1489586
    FIG. H
    Fig 5
    1489586
    g “2z
    /thirty
    6
    类似技术:
    公开号 | 公开日 | 专利标题
    SU1489586A3|1989-06-23|Tube coupling
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    同族专利:
    公开号 | 公开日
    DE3519662A1|1985-12-05|
    IT1208809B|1989-07-10|
    US4732416A|1988-03-22|
    FR2565317B1|1987-04-17|
    MX162017A|1991-03-20|
    AU566989B2|1987-11-05|
    KR890000053B1|1989-03-06|
    DE3519662C2|1988-05-26|
    CA1288453C|1991-09-03|
    IT8567513D0|1985-06-03|
    JPH0541876B2|1993-06-24|
    NL8501462A|1986-01-02|
    NO170107C|1992-09-09|
    NL187540C|1991-11-01|
    GB8414203D0|1984-07-11|
    NO170107B|1992-06-01|
    NO852229L|1985-12-05|
    AU4324685A|1985-12-12|
    KR860000501A|1986-01-29|
    JPS60260792A|1985-12-23|
    FR2565317A1|1985-12-06|
    引用文献:
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    GB848414203A|GB8414203D0|1984-06-04|1984-06-04|Pipe connectors|
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