• 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:
    Invention m. used to seal the telescopically fixed connections, in which the smooth end of one of the pipes is inserted into the socket of the other pipe, radially compressing the sealing gasket (P). The purpose of the invention is to increase the sealing ability of P. The gasket is made of an elastic material with an expanding inner surface and contains locking elements for a tight connection between the outer surface of the inserted pipe and the inner surface of the receiving bell. The mounting ledge 8 on the outer surface of the P is placed in the annular groove of the socket for the input shoulder. The locking elements are made in the form of branches 16. 17, horizontal and vertical. The branch 16 is parallel to the axis P, placed on the outer surface of the protrusion 8. Branch 17 is adjacent to the first and extended from it towards the axis of symmetry P extending beyond the body of P. The branches 17 are of different lengths. 2 hp ff, 3 ill.
    公开号:SU1722247A3
    申请号:SU884356658
    申请日:1988-09-27
    公开日:1992-03-23
    发明作者:Эмиль Рене Лагаб Андрэ；Буше Клод
    申请人:Понт-А-Муссон С.А. (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to a sealing technique and can be used to seal telescopically fixed joints in which the flat end of one of the pipes is inserted into the socket of another pipe, radially compressing the sealing gasket.
    The aim of the invention is to increase the sealing ability of the gasket.
    In Fig. 1 shows a sealing gasket in the connection during installation, section: in Fig.2 - the same; in a free state; in Fig.Z - the same embodiment. .
    The tight connection consists of the narrow end 1. of a single pipe, the annular sealing strip 2 of an elastomer with a hardness of 55 to 75 ° Shore A, which has metal locking elements 3, and the wide end 4 of the other pipe, the pipes being arranged coaxially relative to each other with axis XX. At the wide end 4 of the pipe, at the inlet end of the inlet shoulder 5, a cylindrical groove 6 with a length L and a height N. is made. After the groove 6, after displacement, a cylindrical wall 7 with an axis XX of the wide end 4 of the pipe with a diameter smaller than the inner diameter of the groove 6 is made .
    The sealing gasket 2 only partially has on the outer surface a fastening protrusion 8 of a width A corresponding to the width of the groove 6. The outer surface of the fastening protrusion 8 is cylindrical with an axis XX. The protrusion 8 continues in the direction of the axis XX with an elastic sealing element 9 with an outer cylindrical surface 10 with the axis XX. The mounting protrusion 8 is mated with the surface 10 of the protrusion 22, which forms an offset between the outer surfaces of the protrusion 8 and the sealing element 9.
    The outer diameter of the protrusion 8 corresponds to the inner diameter of the groove 6 of the wide end 4 of the pipe, the outer surface of the strip 2 formed by the protrusion. 8 and surface 10, has a profile corresponding to the profile of the wide end 4 of the pipe with a groove 6, its wall 11 and wall 7.
    The inner surface 12 of the seal 2 has a truncated cone shape. It is mated with the surface 19 of the sealing element 9 curved surface 13.
    The sealing gasket 2 is bounded from the end opposite the curved surface 13 by a radial end surface 14, which mates with the protrusion 8 of the chamfer 15. The surface 14 and the chamfer 15 are designed to make contact with the corresponding inner side of the protrusion 5 of the wide end 4 of the pipe. The diameter of the rib formed by surfaces 12 and 13 is smaller than the diameter of the rib formed by surfaces 12 and 14, while the diameter of the narrow end of one pipe, which should go into the wide end of the other pipe, is between the sizes of these two extreme diameters.
    In the sealing gasket 2 there are made radial grooves evenly distributed at the level of the protrusion 8, in which the locking elements 3 are placed. The sealing gasket 2 can be filled on the locking elements 3. Each locking element 3 has the shape of the number seven, therefore, it has a horizontal branch 16 of length L1 and a vertical branch 17 of length L2. which is extended in the inner radial direction.
    The vertical branch 17 at its lower end ends with a face. The vertical branch 17 can form an angle of 90 ° with branch 16, however this angle can vary by ± 10 °.
    The length L1 of the horizontal branch 16 is less than the axial width A of the protrusion 8. In in accordance with a preferred method of implementing the invention, the length of the branch 16 is less by a value of from 0.5 to 1 mm than the width of the protrusion 8.
    The horizontal branch 16 is formed by the outer surface 18 and the inner surface 19, which are parallel to each other, the vertical branch 17 is formed by two parallel surfaces 20 and
    21. The inner surface 19 of the branch 16 mates with the surface 20 of the branch 17, and the outer surface 18 of the branch 16 mates with the surface 21 of the branch 17 through the protruding convex surface 22.
    The horizontal branch 16 is designed to be placed in the mounting protrusion 8 of the strip 2, their respective outer surfaces have the same diameter with respect to the axis XX of the sealing strip 2.
    The protrusion 22 is designed to lean against the wall 11 of the wide end 3 of the pipe. The lower end of the branch 7 is at a distance D from the axis XX of the strip 2.
    In the sealing gasket 2 can be placed locking elements 3, which have vertical branches 17 of different lengths, which, therefore, determine several diameters.
    So, for example, for a cast-iron pipe with an outer diameter of 100 mm, fifteen fixing elements were selected: five fixing elements with a height of 17.5 mm, five other fixing elements with a height of 18.5 mm and five fixing elements with a height of 19.5 mm.
    The installation of the device is as follows: after the introduction of the sealing gasket 2 together with the locking 10 elements 3 into the groove inside the wide end 4 of the pipe, the narrow end of one pipe is introduced into the wide end 4 of the other pipe. When this occurs, the compression of the sealing element 9. 15
    The vertical branch 17 of the locking elements 3, coming into contact with the narrow end of the pipe, will tilt, sliding the surface of the protrusion along the wall 11 of the wide end 4 of the pipe. 20
    When the thin end of the pipe is pushed out (less than 2 mm), for example, as a result of creating pressure in the pipeline, the ends of the branches 17 in the form of faces that abut against the outer surface of the narrow 25 end of the pipe penetrate the wall thickness of this thin end of the pipe. Such penetration will occur only for the values of the inclination of the vertical branches 17, less than a certain limit, which 30 depends on the properties of the materials used and on the surface condition of the narrow end of the pipe.
    This penetration is favored by the fact that the mass of the elastomer located 35 in front of the strip 2, under the surface 19 of the horizontal branch 16, in front of the surface 20 of the branch 17, tends to compress between the outer surface of the narrow end 1 of the pipe and the horizontal branch 16 while the rotation of the locking element 3 around the protrusion 22.
    Thus, this mass of elastomer plays the role of a return spring, which tends to automatically return the branch 45 17 to its original position.
    The vertical branches 17 may have different lengths. This makes it possible to secure the pipes within the dimensional tolerances that determine the function 50 of the number of retaining elements 3 and the various lengths of their vertical branches 17, which allows us to always have a sufficient number of retaining elements 3, the inclination of which will be less than the limit value indicated 55. This allows for effective fastening along the entire periphery of the narrow end 1 of the pipe, even if this narrow end has an eccentricity or deviates to the wide end 3 of the pipe. Moreover, if the strength of the fastening is insufficient, the narrow end 1 tends to come out of the wide end. pipes 3. Elements 3 will rotate around the horizontal branch 16, opposite to the protrusion 22, which is opposite the inner surface of the shoulder 5, Thus, the distance from the end of the edge of the branch 16 with respect to the axis XX will decrease and increase, thus changing the fixing force for due to the penetration of the element 3 into the outer surface of the narrow end 1, also increasing the effect of jamming.
    In accordance with the embodiment of the gasket 2, shown in Fig. 3, on the inner surface of the gasket 2 there is an annular protrusion 23 of a trapezoidal cross section, it is located on the radial inner extension of the protrusion 20 of the protrusion 8, the inner diameter of this protrusion is less than the minimum outer diameter of the narrow end pipe 1, the width P of this protrusion 23 in the large base of the trapezoidal profile is equal to the width of the base A 25 of the protrusion 8.
    The sealing element 9, mainly trapezoidal in shape, which continues the protrusion 23, with a small base, which is located on the side of the protrusion 23, and with a lateral base located on the base side of the wide end 4 of the pipe, has a first inner surface 24, which forms an angle of about 35 ° with axis XX of gasket 2. Following 35, this first surface 24 is followed by a second inner surface 25, parallel to the axis of gasket 2, which ends with inner surface 26 in the form of a truncated cone, it forms an angle of 20 ° with axis 40 of curls subcontroller 2. Rib 27 formed by the intersection of surfaces 24 and 25, x has a diameter smaller than the minimum diameter of the protrusion 23. The end surface of the sealing member 9 opposite vy45 mortar 23, i.e., from the bottom of the wide end 4 of the pipe, it is formed by a ring-shaped petal 28, which axially protrudes from this transverse surface, and two sides 29 and 20, which 50 form part of this transverse surface on both sides of the petal 28. The surface 30 forms with the surface 26 a triangular sponge 31 with a saw tooth profile. In addition, in the gasket 2 there is a triangular recess 32 located between the protrusion 23 and the sealing element 9, limited by the dihedral angle, which is formed by the lateral surface 33 of the protrusion 23 and the surface 24 of the sealing element 9.
    The locking elements 3 are in the form of the number seven, with the horizontal branch 16 located in the fixing protrusion 8 of the strip 2, and the vertical branch 17 continues in the direction of the inner radius of the horizontal branch 16.
    The end in the form of a face of the vertical branch 17 ends outside the strip 2, outside, immediately behind the protrusion 23 in the recess 32.
    The connection with the gasket 2 of this type works as follows. The introduction of the thin end 1 of the pipe into the wide end 4, into which the gasket 2 is inserted, causes the compression of the protrusion 23, due to this, the fixing protrusion 8 is pushed to the base of the groove 6 of the wide end 4 of the pipe. This ensures good stability of the gasket 2 inside the wide end 4 of the pipe. Then the thin end 1 of the pipe comes into contact with the ends in the form of faces of the locking elements 3. The vertical branches '17 tend to bend, while the elements 3 are rotated by sliding their surfaces 22 along the wall 11 of the wide end 4 of the pipe. The return force of the mass of elastomer enclosed in front of each locking element 3 under each branch 16 is enhanced by pre-compression of the protrusion 23.
    The recess 32 allows each vertical branch 17 to tilt without pushing the sealing element 9. Thus, due to this recess 32, no leakage occurs. · • The protrusion 23 allows you to protect the zone for fastenings, in which the end faces of the elements 3 penetrate the outer surface of the thin ends 1 of the pipes from the aggressive effects of liquids (gases) located outside the pipeline.
    To better fix the sealing gasket 2 at the wide end 4 of the pipe, the protrusion 8 is located in the groove 6 of a greater height H, while the fixing protrusion 8 has a corresponding height N. Moreover, the protrusion 22 becomes insufficient to allow rotation of the element 3 and, therefore, the inclination of the branch 17. Indeed, this branch 17 immediately comes into contact with the rib of the wide end 2 of the pipe. The solution to this problem is to continue branch 17, the protrusion 22 is enlarged and a fastening element is created, which takes the form of the letter G. The operation of the connection with such a sealing gasket is similar to that described.
    权利要求:
    Claims (3)
    [1]
    Claim
    1. A sealing gasket for telescopically fixed joints made of an elastic material with an expanding inner surface, containing locking elements for a tight connection between the outer surface of the inserted pipe and the inside. • the front surface of the receiving socket of another pipe, and the mounting protrusion on its outer surface, located in the annular groove of the receiving socket behind the inlet collar, so that in order to increase the sealing ability of the gasket, the locking the elements are made in the form of two branches: horizontal, parallel to the axis of the strip, located on the outer surface of the mounting protrusion, and vertical, paired with the first and continued from it towards the axis of symmetry of the strip, extending beyond the elastic body bookmarks. ·
    [2]
    2. The gasket according to claim 1, characterized in that the vertical branch of the locking element is paired with another branch through a protrusion made on its end surface.
    [3]
    3. The gasket according to claim 1, characterized in that the vertical branches of the locking elements are made of different lengths.
    类似技术:
    公开号 | 公开日 | 专利标题
    SU1722247A3|1992-03-23|Sealing gasket for telescopically retainable connections
    RU2080511C1|1997-05-27|Radially compressible sealed for seal joining of pipe with inserted end and pipe with funnel
    US3866925A|1975-02-18|Device for increasing the elastic force of and reinforcing objects manufactured from an elastic material
    US5947533A|1999-09-07|Gasket assembly with elastomer expansion area
    US4304415A|1981-12-08|Packing ring for ribbed conduits
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    GB2145790A|1985-04-03|Pipe joints-dissimilarpipe sizes
    KR940011856B1|1994-12-27|Pipe coupling
    US4643465A|1987-02-17|Pipe coupling
    RU2015441C1|1994-06-30|Pipe joint tight seal
    US4717179A|1988-01-05|Pipe union for end to end pipes with deformable clamping disks surrounding a seal
    KR920002970A|1992-02-28|Improved tube coupling
    JPH0617939A|1994-01-25|Packing for reciprocating rod
    WO1984001807A1|1984-05-10|A pipe joint seal
    US4147368A|1979-04-03|Pipe seal
    EP0053330A1|1982-06-09|Pipe coupling
    US4564220A|1986-01-14|Elastic gasket pipe coupling for pressurized plumbing systems
    US5609368A|1997-03-11|Separation preventive pipe joint
    US4614371A|1986-09-30|Ring
    同族专利:
    公开号 | 公开日
    CN1034254A|1989-07-26|
    FR2621376B1|1989-12-22|
    EP0310534A1|1989-04-05|
    AU603707B2|1990-11-22|
    BR8805049A|1989-05-09|
    US4848805A|1989-07-18|
    JPH01112095A|1989-04-28|
    ES2021874B3|1991-11-16|
    EP0310534B1|1991-03-20|
    EG18923A|1994-10-30|
    AT61862T|1991-04-15|
    UA5946A1|1994-12-29|
    FR2621376A1|1989-04-07|
    CA1334029C|1995-01-17|
    KR920002818B1|1992-04-04|
    CN1012916B|1991-06-19|
    KR890007009A|1989-06-17|
    JPH066998B2|1994-01-26|
    DE3862095D1|1991-04-25|
    AU2334688A|1989-04-06|
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    DE2235391A1|1972-07-19|1974-01-31|Gustav Dipl Ing Wagner|INTERNAL THRUST LOCKING FOR PIPE CONNECTIONS|
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    JPS614795Y2|1982-03-11|1986-02-14|
    JPS5949475A|1982-09-16|1984-03-22|Sanyo Electric Co|Extractor for ice from ice machine|
    FR2554205B1|1983-10-28|1986-06-13|Pont A Mousson|SEALING FOR CAST IRON PIPE JOINTS|
    JPS60178692U|1984-05-09|1985-11-27|FR2649177B1|1989-06-28|1992-06-19|Pont A Mousson|SEALING WITH ANNULAR ANCHOR HEEL|
    FR2649176B1|1989-06-30|1994-03-25|Pont A Mousson Sa|SEALING FOR SEALED LOCKED SEALS|
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    US5219189A|1989-12-11|1993-06-15|Pont-A-Mousson S.A.|Composite gasket for the locked assembly of spigot and socket pipes|
    FR2665509B1|1990-08-06|1992-10-30|Pont A Mousson|ADDED COLLAR FOR JOINT BETWEEN PIPING ELEMENTS, AND PIPING ASSEMBLY COMPRISING SUCH A COLLAR.|
    DE4234441C2|1992-10-13|2001-06-07|Voss Armaturen|Detachable connector for plastic pipelines|
    US5464228A|1992-11-04|1995-11-07|United States Pipe And Foundry Company|Restraining element for pressure pipe joints|
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    US8490273B1|2010-10-08|2013-07-23|Mcwane Global|Pipe joint gasket and method of using same|
    KR101495659B1|2012-06-22|2015-02-25|뮐러 인더스트리즈 인크|Coupling and joint for fixedly and sealingly securing components to one another|
    JP6093194B2|2013-01-25|2017-03-08|日本鋳鉄管株式会社|Pipe joint structure|
    CN105090650A|2015-08-29|2015-11-25|葫芦岛首钢东华机械有限公司|Inserting type oil delivery pipe|
    KR101698785B1|2016-03-28|2017-01-23| 엠에스|Antimicrobial shock withstand sewers with silver and jade|
    CN106015796B|2016-07-19|2018-01-26|嘉兴通达机械有限公司|A kind of high leakproofness three-way hydraulic joint|
    US10808844B2|2017-02-06|2020-10-20|North American Pipe Corporation|System, method and apparatus for pipe restrained joint seal and lock|
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    US11054070B1|2020-11-13|2021-07-06|United States Pipe And Foundry Company, Llc|Conductive insert for gasket|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    FR8713756A|FR2621376B1|1987-10-01|1987-10-01|SEALING FOR TELESCOPIC LOCKED GASKETS|LV930194A| LV5322A3|1987-10-01|1993-03-19|Sealant for blive telescopic fixed connections|
    LTRP631A| LT2131B|1987-10-01|1993-06-09|TELESCOPICALLY SPECIFICALLY CONNECTED WITH SIGNALING|
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