• 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:
    This invention relates to electrical engineering and can be used to protect electrical wiring. The purpose of the invention is to increase the mechanical strength while simplifying manufacture. The corrugated casing pipe has a longitudinal slot (P) 2, the edges of which are connected by a snap-fit locking device 3, having a longitudinal stopper groove 4 and a protrusion 5 that interacts with it. The protrusion 5 arranged along the groove 4 of the longitudinal notch 12 of the V-shaped asymmetrical in cross-section, in the area of its hollow shoulder 13 with the formation of a longitudinal locking protrusion 5. With the insertion of a hundred porous protrusion 5 into the groove 4, the side wall 9 elastically bends outward, and the locking nose of the protrusion 5 enters the groove 4 of afiksirovannom psshozhenii shoulder 13 adjacent to the shoulder 14 on the inner side and the pressure on him. The embodiment according to the invention makes it possible to manufacture a corrugated pipe made of plastic with snap-fit extrusion in a continuous operating cycle, ensuring a tight, mechanically secure connection of the edges of slot 2. 3 Cp. f-ly, 6 ill. i O) 00 4; 1C 4 Od SL CN
    公开号:SU1342435A3
    申请号:SU833673463
    申请日:1983-12-14
    公开日:1987-09-30
    发明作者:Хеглер Вильхельм；Хеглер Ральф-Петер
    申请人:Вильхельм Хеглер (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to electrical engineering, in particular to devices for protecting electrical wiring.
    The purpose of the invention is to increase mechanical strength and moisture resistance while simplifying manufacture.
    FIG. 1 shows a part of the proposed pipe-shell, a longitudinal section; in fig. 2 shows section A-A in FIG. one; in fig. 3 — proposed casing pipe with electric cable, cross section; in fig. 4 - locking device in front of the fixation-15 in relation to the wall 1.
    Torah; in fig. 5 - the same, after entering the lock; Fig, 6 - the proposed pipe-sheath after entering the lock with a cable, cross section.
    The proposed casing pipe is made corrugated with successive cavities in the form of grooves and annular projections. The wall 1 of the shell pipe has the same thickness over the entire length. Such a pipe structure at high loads provides high flexibility.
    The shell pipe is made with a longitudinal slit 2, on both sides
    which is located stop or retainer, it affects fixation and density.
    snapping locking device 3 in the form of a longitudinal locking groove 4 and a longitudinal locking protrusion 5, which is included in the locking groove 4.
    In the stopper groove 4 (FIG. 4) a recess 6 is made. The locking lug 5 has a locking nose 7.
    The locking groove 4 is externally limited by a side wall 8 having a thickening. The opposite side wall 9, limiting the stopper groove 4, is thinner in cross section, therefore when inserting the locking protrusion 5, the side wall 8 remains rigid, while the stopper groove 4 may open when the side wall 9 is deformed. This deformation is compensated for by the well 10, which is provided below on the wall 8.
    In the radial direction, the longitudinal cut 2 is made with the cut plane 11 at the location of the locking spout 7, forming an acute angle with the outside of the wall 1, with an obtuse angle between the cutting plane It and the inside wall.
    The longitudinal slot 2 is made in the longitudinal along the groove 4.
    the notch 12 V-shaped, asymmetric in cross section, one shoulder 13 which is flat, and the other shoulder 14 steeply dipping. In this case, the longitudinal slot 2 is made on the portion of the hollow shoulder of the recess 12 in the zone of its top with the formation of the locking nose 7 and the longitudinal locking protrusion 5.
    The steeper shoulder 14 is adjacent to the convexity of 15 and-oh baznogo section. ; Externally, the 16 U-shaped section of the convexity 15 passes more hollow
    After manufacturing and making a longitudinal slot 2, the proposed casing pipe has a cross section shown in FIG. 2. Before
    By inserting the cable 17 inside, the pipe is expanded by means of an extension of the slot 2 by means of a corresponding hollow rod. After that, push the cable, with the end
    the shoulder 13 and the blunt lower end of the fixing spout 7 slide along it along with a continuous pull of the cable. The abrasion of the end of the shoulder 13 and the blunt lower part of the locking nose 17 is not
    five
    0
    After laying the cable 17 into the pipe, the slot 2 is locked when the clamp is inserted (Fig. 4). Due to the rounding of the upper outer edge 18 of the locking groove 4 and the lower inner edge of the locking lug 5, it is possible to evenly insert the locking lug 5 into the locking groove 4 uniformly. In this case, the side wall 9 elastically bends outward and the locking nose 7 enters the recess 6, after which the deflected side wall 9, due to its elasticity, returns to its original position. In the 5 fixed position (Fig. 5), the shoulder 13 lies on the inner side of the shoulder 14 and presses on it, as a result of which the pressing force in the upper zone of the stopper groove 4 increases and the density thereby increases. In addition, the increase in density is ensured by geometrically making the lower end of the locking protrusion 5. As a result, the slot 2 is securely closed from the outside and locked. Due to the fact that a locking or latching locking device is provided on the longitudinal slot, the hinge 0
    five
    The pipe can be easily and quickly removed from the laid cable, passed through it and also quickly locked, for example, by means of a driven hollow rod of a snap gate. In this way, the cable is covered with guaranteed density in relation to gases and water. In addition, a snap-type shutter located along the longitudinal slit also has a stabilizing effect, perceiving stresses arising during stretching and impacts, which, for example, during mechanical stacking at large sections, ensures that the elastic tubes are insensitive to tensile loads. .
    Due to the orientation of the longitudinal slit, the angle 1-5 between the cut plane and the outer side wall is relatively blunt and therefore, when sliding longitudinally with respect to the cable to be covered, it avoids damage to its functional parts.
    The invention provides the possibility of producing a corrugated plastic pipe with snap-fit extrusion in a continuous operating cycle. At the same time, while maintaining the strength achieved using a corrugated pipe, a reliable connection is also ensured.
    权利要求:
    Claims (4)
    [1]
    1. Plastic casing pipe for electrical installation, obtained by ext
    five
    0
    five
    0
    five
    a rizia with a lateral longitudinal slit and a snap-fit locking device connecting both edges of the slit, which are made in one piece with the pipe containing the longitudinal stopping groove, in the wall of which a recess is made, which interacts with a locking spout located on the longitudinal locking protrusion differing in that, in order to increase mechanical strength and moisture resistance while simplifying production, the casing pipe is made corrugated with a V-shaped notch along the groove oh form asymmetric in cross section, with the slot made in the area of the hollow shoulder of the notch in the area of its top with the formation of the locking nose and the longitudinal locking protrusion.
    [2]
    2. The shell pipe according to claim 1, characterized in that it is made with a longitudinal projection of an i-shaped cross section, the side wall of which is the steeply dipping shoulder of a V-shaped notch.
    [3]
    3. The shell pipe according to claim 1, characterized in that the wall farthest from the slot, the groove is made with a thickness exceeding the thickness of the second wall.,
    [4]
    4. Shell-shell pop. 1, that is, the slit is made with a cutting plane forming an acute angle with the outer wall of the hollow shoulder of the V-shaped notch.
    eight
    HL
    one
    T
    F
    cpuff.f
    sixteen
    FI.2
    17
    14
    phage.Z
    Companion S. Borisova Editor A. Lezhnin Tehred M. Dadyk Proofreader B. Girn to
    4448/59
    Circulation 617 Subscription
    VNIIPI USSR State Committee
    for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5
    Production and printing company, Uzhgorod, st. Project, 4
    FIG.
    类似技术:
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    同族专利:
    公开号 | 公开日
    EP0114213A2|1984-08-01|
    EP0114213A3|1985-08-21|
    DE3246594A1|1984-06-20|
    JPS6238925B2|1987-08-20|
    JPS59117411A|1984-07-06|
    US4513787A|1985-04-30|
    EP0114213B1|1988-02-03|
    AT32399T|1988-02-15|
    DE3375626D1|1988-03-10|
    CA1205758A|1986-06-10|
    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
    DE19823246594|DE3246594A1|1982-12-16|1982-12-16|SHELL PIPE|
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