• 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:
    1. EXIT VALVE containing thin-walled membrane placed in the prechamber and radially spaced struts for abutment of the membrane at a sharp exit, so that the lateral surfaces of the fascings ,. the pre-chambers facing the longitudinal axis are interconnected, the surfaces of the spacers facing the cut-off chamber of the pre-chamber are in the same plane, and the surface of each spacer facing the membrane is inclined to the periphery of the pre-chamber, and this slope corresponds to the slope of the membrane surface at. : normal exhale. 2. A valve pop. 1, characterized in that the spacers are evenly distributed over the cross section of the pre-chamber and form at least one passage holes in one quarter of it. 3. A valve according to claims 1 and 2, characterized by a TteM that the surface of each spacer facing the membrane is flat. 4. Valve according to claims 1.1 and 2, since the surface of each spacer facing p to the membrane in its longitudinal section has a form (Lemth of a quarter of an ellipse. 5. Valve according to PP, 1 and 2, characterized in that the pre-chamber and struts are made of one piece of plastic in one piece.
    公开号:SU1124982A1
    申请号:SU797770673
    申请日:1979-07-11
    公开日:1984-11-23
    发明作者:Вальтер Гернер；Хорст Шуриг；Рудольф Мюллер
    申请人:Феб Комбинат Медицин Унд Лабортехник Лейпциг (Инопредприятие)；
    IPC主号:
    专利说明:

    The invention relates to a rescue service and is intended for use in masked respirators, mainly for protection against toxic gases.
    Known exhalation valve containing placed in the prechamber thin-walled membrane and radially spaced struts for abutment of the membrane during sudden expiration (published application of Germany No. 2063102, class A 62 B 9/02, 1976).
    A disadvantage of the known valve is that with a sharp exhalation, the edge of the membrane may get into the valve hole, which causes the membrane to not return · '' to its original position.
    In addition, atmospheric air may enter under the membrane.
    The aim of the invention is to remedy these disadvantages.
    This goal is achieved by the fact that in the exhalation valve containing a thin-walled membrane located in the prechamber and radially spaced struts for abutting the membrane during sharp exhalation, the side surfaces of the spacers facing the longitudinal axis of the prechamber are interconnected, the surfaces of the spacers facing the prechamber slice are located in one plane, and the surface of each spacer facing the membrane is made obliquely to the periphery of the prechamber, and this inclination corresponds to the inclination of the membrane surface with normal Ohe.
    In this case, the spacers are evenly spaced across the cross-section of the prechamber and form at least three passage openings on one quarter of it.
    Moreover, the surface of each spacer facing the membrane is made 5 on a flat 4
    In addition, the surface of each strut facing the membrane in its longitudinal section has the shape of a quadruple ellipse.
    1 °
    The prechamber and spacers are made of plastic in one piece ..
    Figure 1 shows ’exhalation valve, General view, section; figure 2 15 is the same in the open position; in Fig.3 - the location of the spacers in the cross section of the prechamber.
    The exhalation valve has a pre-chamber 1, a thin-walled .2: 2Q membrane and radially spaced struts 3, which form passage openings 4.
    The membrane occupies position I during normal exhalation, while its inclination corresponds to the inclination of the spacers * · * to the periphery of the prechamber. Position And. the membrane takes with a sharp exhale, while its movement is limited. yut struts. The surfaces of the spacers facing the membrane are either 30 flat or in their longitudinal sections in the form of a quarter of an ellipse.
    To increase the manufacturability of the design, the prechamber and spacers are made of plastic in one piece. 35 The proposed exhalation valve has low resistance to expiration, the ingress of atmospheric air under the membrane is also excluded.
    Figure 2
    VNIIIPI Order 8324/5
    Circulation 426 Subscription
    Fig.Z branch PPP Patent,
    Uzhhorod, Project 4,
    权利要求:
    Claims (5)
    [1]
    1. EXHAUST VALVE containing a thin-walled membrane located in the prechamber and radially spaced struts for abutting the membrane during an abrupt exit, with the fact that the lateral surfaces of the struts facing the longitudinal axis of the prechamber are interconnected, the surfaces of the struts, the prechambers facing the cut are located in one plane, and the surface of each spacer facing the membrane is inclined to the periphery of the prechamber, and this inclination corresponds to the inclination of the membrane surface during normal exhalation. · '. . ,
    [2]
    2. The valve according to claim 1, characterized in that the spacers are evenly spaced across the cross section of the prechamber and form at least three passage openings on one quarter thereof.
    [3]
    3. The valve according to claims 1 and 2, characterized in that the surface of each spacer facing the membrane is made flat.
    [4]
    4. Valve according to pp.1,2 from Chaga l and u and d with I gem, that the treatment of the membrane surface of each pacnop-JS ki in its longitudinal .sechenii has odds th quarter ellipse.
    [5]
    5. The valve according to claims 1 and 2, characterized in that the prechamber and spacers are made of plastic in one piece.
    类似技术:
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    同族专利:
    公开号 | 公开日
    HU182786B|1984-03-28|
    DD138036B1|1980-10-01|
    DE2924172A1|1980-02-21|
    CS231554B1|1984-12-14|
    IN152115B|1983-10-22|
    DD138036A1|1979-10-10|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US4414973A|1981-03-10|1983-11-15|U.S.D. Corp.|Respirator face mask|
    US4934362A|1987-03-26|1990-06-19|Minnesota Mining And Manufacturing Company|Unidirectional fluid valve|
    US4813575A|1987-09-29|1989-03-21|Amtrol Inc.|Non-refillable valve for pressurized containers|
    IT1216459B|1988-02-26|1990-03-08|Ind Pirelli S P A Milano Minis|PROTECTIVE MASK FOR OPERATIONAL INTERVENTIONS IN CONTAMINATED ENVIRONMENTS.|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DD20706578A|DD138036B1|1978-08-01|1978-08-01|exhalation valve|
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