• 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. SEALING ELECTRICAL CABLES, comprising a housing in the rectangular opening of which, parallel to each other, a plurality of elastic elements of elastomeric foam composition are installed, on the mating surfaces of which are open-grooves symmetrical with respect to the plane, and for clamping elements that differ in order to increase reliability, it is equipped with pressure plates located along the ends of each elastic element and interconnected and elastic the element with adjustable connecting elements, protrusions on the inner surface of the body, ribs on the nonadjacent sides of each elastic element, open between the body projections, while the height of the pressure plates is located on one side, less than the height of the elastic elements, and the height of the pressure plates, located on the other hand, exceeds the height of the elastic elements with edges.
    公开号:SU1122242A3
    申请号:SU802886204
    申请日:1980-02-26
    公开日:1984-10-30
    发明作者:Чейз Берри Ричард
    申请人:Крауз-Хайндз Компани (Фирма)；
    IPC主号:
    专利说明:

    2. Sealed inlet under item I, which differs in that the body is made in the form of two U-shaped hundred
    of shelves facing each other with shelves and placed between (1 each with BOTJMOJKHOC I.FJ disconnecting two bars.
    The invention relates to electrical engineering, in particular, to hermetic injection of electric cables, specifically to a new frame design and insulating elements for achieving a fire barrier. A hermetic inlet is known for conductors passing through a wall consisting of a short rectangular tube that is partially filled with elastic blocks of various sizes. Adjacent blocks can be made with additional grooves that form cylindrical passages for electrical conductors of a certain size, and some blocks have no grooves and are simply used as fillers. After all the blocks and cables are installed in the desired position, the final force seal between the conductors, elastic blocks and the tube is performed by compressing the blocks in directions perpendicular to the cables using a common plate. Corresponding devices are also provided for filling the gap between the opposite sides of the plate and pipe 1. Also known is hermetic inlet of electrical cables, which must be protected from fire, gas or liquid at a predetermined temperature. Cables pass through openings in the ceiling, floor or wall and through a pair of additional guide strips, each of which has semi-cylindrical grooves surrounding each cable. Fitted sealing elements for filling the holes are provided in the known device. There is no compression applied to the sealing elements, guide strips or cable belts, so that each of these elements can be easily removed from the hole in order to change the candy: Guration 5 add or remove cables that pass through it. The guide strips or compaction elements consist of materials having a high coefficient of expansion, as a result of which fire guide means and sealing elements arise to form tight insulation with the frame and around the cables. One side of the device may be lined with material filling the space between the guide strips from the liquid pj. Closest to the present invention is a sealed input of electrical cables, comprising a housing in a rectangular opening of which, parallel to each other, a plurality of elastic elements are made of elastomeric foam composition, on the mating surfaces which are made open grooves symmetrical with respect to the interface plane for placement of cables, and clamping elements p1 However, the known hermetic inlet does not provide sufficient reliability in case of emergency rzhivaet elements of elastic foamed composition inside ramkIr rectangular hole situated in a fire wall. The aim of the invention is to increase reliability. Delivered by the fact that the hermetic input of electric cables includes a housing, in a rectangular opening of which, parallel to each other, a plurality of elastic elements are made of elastomeric foam composition, on the mating surfaces of which are made open grooves symmetrical with respect to the interface, which are designed to accommodate cables, and clamping elements, provided with clamping plates located along the ends of each elastic element and connected together with themselves and elastic elements m adjustable connecting elements, on the inner surface of the body there are protrusions, on non-adjacent sides of each elastic element there are ribs located between the protrusions of the case, while the height of the pressure plates located on one side is less than the honeycomb of the elastic elements, and the height of pressure plates located on the other hand, it exceeds the height of the elastic elements with edges. In this case, the body can be made in the form of two and-shaped racks, facing each other with shelves and placed between the latter with the possibility of disconnecting the two strips. FIG. 1 shows the proposed device with a few removed end plates, front view; in fig. 2 shows a frame in a partially assembled position; FIG. 3 is a side view of the device in FIG. 4 is a section A-A in FIG. 1i in FIG. 5 and 6 — resilient elements of elastomeric milled composition, front view in FIG. 7 is an elastic element having semi-cylindrical grooves on opposite sides; FIG. 8-13 - elastic elements forming cylindrical aisles of various diameters. Sealed electrical cable entry 1 includes a rectangular housing 2, which can be of any desired dimensions. To simplify the design, the housing 2 consists of two end sections 3 and 4 and two elongated side sections 5 and 6. In the end sections 3 and 4, holes 7 and 8 are provided for passage of bolts 9 and 10, which are screwed into threaded holes 11 and 12 for attaching end sections to elongated lateral areas. The end portions 3 and 4 are preferably of the same size, while the side portions 5 and 6 may have different lengths to provide different sizes of the rectangular case. Plate-like nodes that are adapted for placement. in the case, they preferably have the same height, but different hetiry. Thus, when using side sections 5 and 6 of different lengths, the number of plate-like units dp placed in the housing may vary. The peripheral flange of the housing 2 is provided with a plurality of holes 13 for the passage of bolts 14 securing the housing 2 to the firewall 15. The term firewall refers to ceilings, floors and other structural elements intended to stop the fire. A plurality of plate-like assemblies 16 are adapted for adjacent placement in an opening defined by housing 2. Each plate-like assembly 16 can vary in width depending on the number and size of grooves provided for cables, includes a plurality of elastic elements 17 made of elastomeric foam composition, each of which is provided with one or more edges or protrusions 18, protrude them along the length of the upper and lower surfaces of the elastic elements 17 (Fig. 4). The width of each edge 18 is somewhat less than the distance between the projections 19 sideways. outlets 5 and 6 in order to provide a tongue and groove joint for sliding the support of each plate-like assembly 16 in the housing 2. The elastic members of the elastomeric foam composition have a large difference in width and may or may not have semi-cylindrical grooves of various sizes. Elastic elements 17 (Fig. 4, 8, 10-13) are made with a plurality of longitudinally parallel semi-cylindrical grooves 20 arranged only on one side surface of the plate. When two such resilient elements are arranged adjacent to the housing 2, the semi-cylindrical grooves form a plurality of cylindrical aisles that completely pass through the frame. Such cylindrical passages are adapted to accommodate electrical cables 21 (FIG. 4), the diameter of which is equal to the diameter of the cylindrical passage. The elastic elements 17 can be sealed around the cables before being inserted into the housing or the cables can be inserted into the cylindrical passages after placing the elastic elements in the housing 2. The latter procedure is more difficult due to frictional forces, therefore, the assembly before insertion into the housing is preferable. The number of grooves in each elastic element and its thickness vary depending on the diameter of the grooves formed by the nick in the element. The UtapoKHe resilient elements have more than one rib 18 on the upper and lower surfaces, so that the gaps between the projections 19 on the body are filled. The elastic elements 17 (Fig. 9) have a large number of grooves 20 of small diameter, and as a result, the grooves can be pd.3 placed on opposite lateral surfaces of the elastic element in a stepwise mutual arrangement. The elastic elements 17 (Fig. 7) also have a plurality of grooves 20 of small diameter on opposite side surfaces, with the grooves opposite each other. This can only take place for very small groove diameters, so that a sufficient amount of materials is placed between the opposite grooves. The elastic elements 17 (Figs. 5 and 6) do not have any grooves and act as filling elements. Thus, depending on the number and size of cables passing through the housing 2, various combinations of elements can be assembled, as shown in FIG. 1. Although only six electrical conductors 21 are shown in cylindrical passages, it is obvious that other cylindrical passages formed by palucilindrical grooves 20 may also have electrical conductors, electrical cables, and the like. to pass through them. In those examples in which two adjacent elastic elements form multiple cylindrical passages and there are not enough cables or pipes to fill all the passages, a cylindrical filling plug of the same material as the elastic element 17 can be inserted into the passage. When an elastomeric device swellable elements, cables, pipelines, etc. assembled in the housing 2, in order to completely fill the aisles, it is necessary to apply a load to the opposite surfaces of the device in order to compress the elastomeric swelling of the material in closed flat contact with the housing, with each other, and with cables, pipelines, and the like. In order to make 11 26 this, each plate-like node 16 is equipped with a pair of end pressure plates 2-2 and 23 located on opposite sides. Each element of the elastomeric foamed composition (both the slotted plate and the fillet plate) has two through holes. A pair of connecting elements 24 and 25 tightens the upper and lower ends of the pressure plate 23 and passes through the matching hole on the ends of the pressure plate 22, and The connecting elements 26 and 27 are attached to the protruding ends of the connecting elements 24 and 25. The vertical size of each plate 22 is larger than the vertical size of the hole in the housing 2 (Figs. 1 and 4), so that each pressure plate is adjacent to the outer surface of the side elements 5 and 6 of the housing 2. On the other hand, the vertical dimensions of the plate 22 are smaller than the distance between the opposing projections 19 on the upper and lower elements 5 and 6 of the housing 2, so that the pressure plate 23 can be inserted into the housing 2. The end pressure plates 22 and 23 are preferably mounted in combination with a corresponding elastomeric element 17 before being mounted in the housing 2. However, the connecting elements 26 and 27 are supported by protrusions so that the elastic element 17 is not subjected to compression. After the rectilinear opening in the housing 2 is completely filled with plate-like nodes 16, the connecting elements 26 and 27 on each node 16 are evenly tightened in order to draw the pressure plates 23 to the pressure plates 22 and press the elastomeric swellable material of the elastic elements 17 into fitted tight contact with adjacent elements, the housing and the piping. The same pressing can be carried out on each plate-like node 16 by rotating the connecting elements 26 and 27 until the ends of all the connecting elements 24 and 25 protrude by the same amount. When building buildings in which a fire barrier device is to be installed, various cables can be run through the open enclosure until other construction work is completed. At the same time, cables and piping can be connected in plate-like nodes 16. In the opening of housing 2. Pressure cannot be applied to the plates until the work is completely completed, so the last small changes can be easily made by simply removing the necessary flat node 16 , removing the cables or passing additional cables and unmounting the proper flat assembly 16. Various elastic elements are made of elastomeric foam composition, which is preferably a combination nd neoprene rubber and natural chalk filler (CaCOj). When neoprene is oxidized when heated or absorbed, it releases hydrogen chloride, which forms hydrochloric acid with water. The natural small filler reacts with hydrochloric acid, neutralizes it; Calcium chloride and carbon dioxide. Calcium chloride is a highly soluble compound, but carbon dioxide is a gas that expands when heated, thus expanding rubber. Under certain conditions, the composition of the elastomeric swelling material provides an airtight barrier during compression to prevent the passage of smoke or other vapors. If fire occurs causing destruction
    11-28 swelling material around the electrical conductor passing through the fire barrier, expanding the neoprene rubber causes radial pressure to be applied to the electrical cable, pushing the melting insulation of the wire and clamping the conductors into a dense copper beam, preventing any gases or flames from passing through to the cold side of the device. In order to further enhance the effectiveness of the fire barrier device, the outer surfaces of the housing and pressure plates can be lined with a layer of swelling material 28 (FIG. 4), which is applied to the outer surfaces of the housing 2 and pressure plate 22 after assembly of the device. The swelling material coating can be placed on the surfaces of the housing 2 and the pressure plate 23 on the other side of the wall 29 in a similar manner. It is preferable to apply swellable material after the plate assemblies 16 are installed in the housing and the housing is attached to the wall, and the surfaces of the housing 2 and the pressure plates 22 and 23, which subsequently protrude before the device, can be lined before assembly. that after installation the facing operation can be excluded. The proposed design can be applied in simple steam vessels, water sealing barriers or protection barriers without any changes.
    FIG. if
    29
    r
    20
    21

    Fi.V 6
    10
    Fib.c
    Phie, 7 phi, 8 Thebes. 9 IB
    17
    Ozig.P
    (Rig.Gz IS
    权利要求:
    Claims (2)
    [1]
    1. A SEALED INPUT OF ELECTRICAL CABLES, comprising a housing, in a rectangular opening of which are parallel to each other a plurality of elastic elements of an elastomeric foam composition are installed, on the mating surfaces of which are open grooves symmetrical with respect to the plane, designed to accommodate cables, and clamping elements, characterized in that , in order to increase reliability, it is equipped with clamping plates located at the ends of each elastic element and interconnected with an elastic element entom adjustable connectors, protrusions are made on the inner surface of the housing, ribs located on the non-adjacent sides of each elastic element are located between the housing protrusions, while the height of the pressure plates located on one side is less than the height of the elastic elements and the height of the pressure plates located on the other hand, exceeds the height of the elastic elements with ribs.
    09t.f
    [2]
    2. Sealed input on π. I, repelled by the fact that the body is made in the form of two U-shaped posts, facing each other with shelves and placed between the latter with the possibility of disconnecting the two strips.
    类似技术:
    公开号 | 公开日 | 专利标题
    SU1122242A3|1984-10-30|Hermetic entrance of electric cable
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    US3976825A|1976-08-24|Lead-through for electric cables and the like
    US4061344A|1977-12-06|Fitting for penetration through fire rated barriers
    US4099020A|1978-07-04|Apparatus for sealing passages through a concrete floor and about a conductor
    CA1154004A|1983-09-20|Fire barrier device
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    FI89957B|1993-08-31|ANORDNING FOER KABELGENOMFOERING
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    CN109155513B|2021-02-26|Insert half and insert comprising two of said insert halves
    RU2718347C2|2020-04-02|Through device and module
    RU180659U1|2018-06-20|Cable entry device
    EP0349881B1|1991-11-13|Fire-restraining sleeve
    US3848897A|1974-11-19|Thermal shield
    KR830002862Y1|1983-12-10|Fire Protection Barrier Assemblies for Electrical Cables
    KR20200053536A|2020-05-18|Extension frame
    EP0197102A1|1986-10-15|A fire-sealed lead-through for framed building components
    RU2007807C1|1994-02-15|Fire-resistant cutting for cables and pipe-lines
    EP1165900A1|2002-01-02|Fire protected penetration
    KR102014033B1|2019-08-23|Fire Protection Device Through Pipe Insulation
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    同族专利:
    公开号 | 公开日
    DK150055C|1987-05-11|
    ES488930A0|1980-12-01|
    SE438948B|1985-05-13|
    AU531809B2|1983-09-08|
    NL187375B|1991-04-02|
    NO153709B|1986-01-27|
    NO800531L|1980-08-28|
    JPS55160914A|1980-12-15|
    IT8067293D0|1980-02-26|
    BE881920A|1980-06-16|
    ATA105680A|1983-09-15|
    NL187375C|1991-09-02|
    FR2453520A1|1980-10-31|
    JPS6355285B2|1988-11-01|
    IT1129202B|1986-06-04|
    ES8100613A1|1980-12-01|
    FR2453520B1|1985-07-12|
    GB2045544B|1983-09-01|
    SE8001499L|1980-08-28|
    CA1133082A|1982-10-05|
    DK150055B|1986-11-24|
    GB2045544A|1980-10-29|
    US4249353A|1981-02-10|
    NO153709C|1986-05-07|
    MX148732A|1983-06-06|
    DE3006794A1|1980-09-04|
    AU5574080A|1980-09-04|
    NL8001124A|1980-08-29|
    DE3006794C2|1989-12-14|
    DK81780A|1980-08-28|
    AT374629B|1984-05-10|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    US06/015,842|US4249353A|1979-02-27|1979-02-27|Fire barrier assembly for electrical cable|
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