KR20100008061U - Cohering between layers of a pipe or cable lead-through - Google Patents

Abstract

The present invention relates to a compressible seal or leadthrough for a cable, wire or pipe having two or more compressible base parts 102, 104, 204, 302 surrounding each cable, wire or pipe. The seal or leadthrough is disposed directly in the frame 138 or in an opening through the wall, other structural compartments or other compartments forming the wall. A barrier is formed in the opening or frame 138 by at least one compression unit 136 and two or more base parts 102, 104, 204, 302. Each compressible base part 102, 104, 204, 302 has at least one peelable layer 108, 208, 308 for adaptation to the diameter of the cable, wire or pipe, and at least one peelable layer ( 108, 208, 308 are disposed in the axial grooves of each compressible base part 102, 104, 204, 302. In some embodiments, at least one peelable layer 310 is arranged around the compressible base part 302 to adapt the outer diameter of the compressible base part 302 to the inner diameter of the opening.
Adjacent strippable layers 108, 208, 308, 310 are attached to each other by mechanical fastening means to enable relocation of the removed layers.

Description

Coupling between layers of pipe or cable leadsthrough {COHERING BETWEEN LAYERS OF A PIPE OR CABLE LEAD-THROUGH}

The present invention relates to a seal, lead-through or transition of a cable or pipe. In particular, the present invention relates to portions of seals or transitions having a peelable sheet for adaptation to the diameter of the cable or pipe to be received.

In the prior art, there are cable transitions and the like having a frame in which a plurality of modules for receiving cables, wires or pipes are disposed. The module consists of an elastic material, for example rubber or plastic, and thus can be compressed. It is common for the interior of the frame to accommodate a number of modules side by side in one or more rows with some kind of compression unit. The compression unit is arranged between the frame and the module in such a way that the compressible module is compressed around a cable, wire or pipe when the compression unit is inflated. In addition, the compression unit may be arranged between the rows of modules. For ease of explanation, the term "cable" is used mainly in this description, but this should be interpreted broadly, and those skilled in the art will understand that this expression also generally includes pipes or wires.

Other types of seals, cable transitions, pipe penetrations and the like are generally cylindrical in shape and are received in an opening in the wall or in a sleeve in the wall. To function in the desired manner, the seal must fit snugly within the opening or sleeve of the wall in which the seal is received and must be adaptable to the actual mounting dimensions. The mounting dimensions are determined by the inner diameter of the sleeve or opening. The seal has a cylindrical compressible body, which is axially compressed between fittings at opposing ends of the compressible body. By axial compression, the cylindrical body will expand radially in both inward and outward directions.

Also, the received pipes, wires or cables can have a variety of outer diameters, and therefore the module must be adaptable to cables or pipes having various outer diameters.

The two types of seals or transitions described above are used in various environments, such as for cabinets, technical shelter, junction boxes and machines. They are used in various industrial environments, such as marine and land, as well as automotive, telecommunications, power generation and distribution. Seals or transitions shall be sealed against fluids, gases, fires, rodents, termites, dust, moisture, etc., and may be cables or wiring for electricity, telecommunications, computers, etc., or various types such as water, compressed air, hydraulic fluids and cooking gases. It can accept pipes for gas or liquid, or wires for load bearing.

A portion for receiving a single cable or the like of the two types described above often has a peelable layer or a pack of peelable sheets therein. This peelable layer or peelable sheet is peeled off until the inner diameter of this part is adapted to the outer diameter of the cable received in the part. The sheets are strong enough to hold together and are loosely attached enough to allow the sheets to peel together one or more sheets from the stack. In some embodiments, a strippable layer or strippable sheet is also present on the outside, allowing for example to adapt the external dimensions of the circular seal to a particular opening or sleeve. In general, repositioning the strippable sheet that has been removed is either impossible or impossible, which can be problematic at installation, because the exact number of strippable layers or at least not too many if a compressible module is used. This is because the peelable layer must be removed.

Those skilled in the art will appreciate that the precise shape and shape of the various parts including the layer may be changed without departing from the spirit of the invention. As an example, the pack of layers may have a cross-sectional shape other than circular.

To eliminate or alleviate the above-mentioned problems, the present invention provides a compressible module for a cable introduction or pipe penetration, wherein the cable introduction or pipe penetration is in the opening through the wall or other structural partition or other partition forming a wall. Or disposed directly in the frame, the barrier being formed in the frame or opening by at least one module and at least one compression unit, the compressible module having at least one peelable layer for adaptation to the diameter of the cable or pipe And at least one peelable layer is disposed in a profile. The compressible module is characterized in that the peelable layer closest to the module groove is attached to the groove by mechanical fastening means.

Furthermore, in one or more embodiments, adjacent peelable layers are attached to each other by mechanical fastening means.

In conventional solutions, the stack of peelable layers is held in place by chemical bonding, adhesives, etc. between the layers and / or between the grooves and the inner layers in the compressible module. The present invention allows the use of a wide variety of materials, since attachment is achieved by other means.

According to one or more other embodiments, mechanical fixing means are provided by structural details on adjacent strippable layers and / or on adjacent strippable layers and grooves of the compressible module.

The solution of the present invention allows for the relocation of the strippable layer removed. To date, relocation of the layers has not been recommended, since once the peelable layer is removed, the bonding between adjacent layers formed in the manufacturing process is lost. In addition, it may be difficult to precisely place the removed layer and there may be a risk of poor sealing properties. In the solution of the present invention, the bonding between the layers is basically achieved by mechanical means by friction, which in turn causes the removed layer to reattach to the adjacent layer when it is relocated. In most cases, bonding is achieved by substructures such as cooperating protrusions and recesses, which will also serve as a guide when the removed sheet is repositioned. These two effects promote safe rearrangement of the layers while maintaining sealing properties. In addition, features and advantages will be described in the following description illustrating embodiments provided with reference to the drawings.

1 is a schematic representation of a compressible module of the prior art;
2 is a schematic diagram of a compressible module according to an embodiment of the present invention.
3 is a schematic view of layers of leadthrough according to another embodiment of the present invention.
4 is a schematic view of layers of a leadthrough in accordance with another embodiment of the present invention.
5 is a front view of a frame with compressible modules arranged therein;
6 is a perspective view of a prior art cylindrical leadthrough in which a layer according to the present invention may be provided.
7 is a perspective view of an alternative embodiment of the cylindrical leadthrough of FIG. 6.

The well known compressible module 100 of FIG. 1 has two base parts 102, 104, both of which have semicircular grooves 105, both of which together form a circular through hole. In the through holes are strippable layers 106 and 108 of material arranged. A blind 110 is arranged at the center of the circular through hole. One reason for using blinds is that there is no reason to stack the peelable layers 106, 108 in the volume that will be fully occupied by the cable in a later step. In practical cases, adjacent layers are in contact and in most cases are joined by an adhesive. The blind 110 and the peelable layers 106, 108 generally extend through the entire axial length of the module 100. Regarding the materials currently anticipated for the module, refer to the applicant's product catalog or the patent applications filed by the applicant.

A feature of known modules is that repositioning the strippable layer removed is undesirable or impossible for safety reasons.

To solve this problem, the present invention provides a compressible module having sealable layers attached to each other by mechanical means. Examples of such attachment means are described with reference to FIGS. 2-4, all of which illustrate a partial cross section of a stack of peelable layers. Layers attached to each other by mechanical means may be used in cylindrical seals or leadthroughs, such as those shown in FIGS. 6 and 7.

2 illustrates a partial cross section of a compressible module according to an embodiment of the present invention. The figure illustrates the lower base part 204 with the peelable layer 208 arranged therein. As is apparent from FIG. 2, the base component 204 has two recesses 212. Each recess 212 extends along the inner circumference of the groove 206. 2 discloses two recesses, but one or more recesses may be considered. Each recess 212 cooperates with a corresponding protrusion 214 on one side of the adjacent layer 208, which in turn causes the corresponding recess on the remaining side of the layer 208, in this manner. A series of recesses and protrusions propagate through the stack of peelable layers. In this way, adjacent peelable layers are mechanically attached to each other to allow removal and rearrangement of the peelable layers.

An alternative embodiment of the module is filed simultaneously by the applicant of the present application, entitled "Eccentric Part of a Pipe or Cable Lead-Through", "Pipe or cable with parts indicating compression" A Pipe or Cable Lead-Through Having a Part Indicating Compressing "," A Module of a Pipe or Cable Lead-Through Having Grooves on Opposite Sides " "," Pipe or Cable Lead-Through Blocks "," Modules of a Pipe or Cable Lead-Through Having Alternating Geometry "," A Pipe or Cable Lead-Through Having Modularized Modules "," A Pipe or Cable Lead-Through Having Penetratea " ble Modules "," A Pipe or Cable Lead-Through Having Modules with a Dimensioning Function, "and" Pipe or Cable Leadthroughs with Alternating Shaped Layers. " A Pipe or Cable Lead-Through having Layers of Alternating Geometry. In one embodiment the module is described in the co-filed application filed by the applicant of the present application, entitled "Modules of Pipe or Cable Lead-Through Sticking Together". Likewise, it is separated from the stack of module halves sticking together. These applications are incorporated herein by reference.

3 illustrates another embodiment of the present invention in a cross-sectional view showing a stack of peelable layers 208. In this embodiment, each peelable layer has a bend 216 along each of its two axial ends. The bend 216 provides adhesion between adjacent layers, and in one embodiment, the axial end of each base part has a corresponding bend, so that adhesion is also achieved between the outermost layer and the base part. In another embodiment, the stack of layers simply extends past the edge of the axial end surface of the base part and in this way achieves mechanical fixation.

4 illustrates a slightly more elaborate form wherein the layer 208a facing the cable (or the inner diameter of the opening if the strippable layer is arranged outside of the compressible module) is defined as an opening (in the adjacent layer 208b). A radial protrusion 218 cooperating with 220. Although a through opening is shown in FIG. 4, the opening 220 does not necessarily need to be a through opening. This adjacent layer also has a protrusion 218, and any additional layers up to the innermost layer 208c are designed in the same way, and the innermost layer 208c has only the opening 220. The function of the innermost layer 208c can be achieved by an opening in the inner surface of the groove of the base part, in which case the use of a special design for the innermost layer can be omitted. Also, layer 208a can have the same design as layer 208b, so that all layers can have the same design. It is also possible to have mechanical fixing means in the form of radially extending ridges and corresponding radially extending valleys in the layers and base part.

It is apparent that all illustrated embodiments provide mechanical attachment between adjacent layers and also provide mechanical retention in the axial direction. This mechanical retention provides additional stability to the compressible module.

Sheets may be arranged in a number of different ways, and have the name "A pipe or Cable Lead-Through having Interconnected Layers", filed by the applicant of the present application, "various thicknesses." A Pipe or Cable Lead-Through Having Layers of Different Thickness "and" Identification of Layers of a Pipe or Cable Lead-Through " At the same time, they may be arranged to have various features as reflected in the filed application.

5 illustrates a sealing system in which a number of compressible modules are disposed within the frame 134 and the compression unit 136 is used to compress the modules. It should be noted here that there are many different types of compression units and frames (shape, design, function), and that the present invention is not limited to any particular type of compression unit or frame.

 In FIG. 6, a cylindrical seal or leadthrough formed of two base parts 302 is shown. Base component 302 may be compressed by fit 304 at opposite ends. Only the fitment 304 on one side is shown in FIG. 6. The base part 302 may be compressed in the axial direction where the fittings 304 on both sides of the base part 302 are moved towards each other by the screws 306. The screw 306 is received in the through opening of the base component 302. Inside the base component 302 are a plurality of peelable sheets or peelable layers 308. The base part 302 of FIG. 7 differs from the base part of FIG. 6 in that it has a peelable sheet or peelable layers 310 on the outside. By the peelable layer 310 on the outside, the outer dimension of the cylindrical seal can be adapted to the dimension of the opening that receives the cylindrical seal. In addition, the layers 308, 310 of the cylindrical seal may be attached to each other by mechanical means in the same manner as described above with respect to FIGS. 2 to 4. By placing the two base parts 302 relative to each other, a cylindrical seal with a central cylindrical opening for receiving cables, pipes, and the like is formed.

An alternative system comprising a frame is described in a concurrently filed application filed by the applicant of the present application, "Sealing System". This application is incorporated herein by reference.

In an alternative embodiment, the seal, leadthrough or transition portion of the present invention is a concurrent application filed by the applicant of the present application entitled "Lubrication of a Pipe or Cable Lead-Through." Lubrication means as illustrated in the published application. This application is incorporated herein by reference.

Those skilled in the art will appreciate that the very specific examples given in this description are merely illustrative and that a large number of embodiments are possible without departing from the concept of the invention as defined in the appended claims. In a given embodiment, the peelable layer is arranged to adapt the diameter of the through hole to the diameter of the cable or pipe. Applicant's product portfolio also includes modules with externally strippable layers arranged to adapt the dimensions of the module to the dimensions of the openings. The appended claims also include such applications.

204: Base Parts
208: peelable layer
212: recess
214: protrusion
216 bends
302: Base Parts
304: fitting portion
306: screw

Claims (8)

A compressible seal or leadthrough for a cable, wire or pipe, having two or more compressible base parts 102, 104, 204, 302 surrounding the cable, wire or pipe,
The seal or leadthrough is disposed directly in the frame 134 or in another structural compartment forming a wall or wall, or through an opening through another compartment, at least one compression unit 136 and two or more base parts 102. Barriers are formed in the opening or frame 134 by means of, 104, 204, 302,
The compressible base parts 102, 104, 204, 302 are
At least one peelable layer 108, 208, 308 for adaptation to the diameter of the cable or pipe, disposed in the axial groove of each compressible base part 102, 104, 302, and
With at least one of at least one peelable layer 310 arranged around each compressible base part for adaptation of the outer diameter of the compressible base part relative to the inner diameter of the opening
In a compressible seal or leadthrough,
Adjacent strippable layers 108, 208, 308, 310 are attached to each other by mechanical fastening means to enable relocation of the removed layers.
Compressible seal or leadthrough. The layer of claim 1 wherein the layers adjacent the axial grooves and the surfaces of the axial grooves are attached to each other by mechanical fastening means to enable repositioning of the removed layers.
Compressible seal or leadthrough. 2. The layer adjacent to the compressible base part (102, 104, 204, 302) and the compressible base part are provided with mechanical fastening means to enable repositioning of the removed layers (108, 208, 308, 310). Attached to each other by
Compressible seal or leadthrough. The method of claim 1 wherein the mechanical securing means comprises a protrusion 214 and a recess 212.
Compressible seal or leadthrough. 4. A mechanical fastening means according to any one of the preceding claims, wherein the mechanical fastening means comprise bends 216 at each axial end of the peelable layer.
Compressible seal or leadthrough. 6. The mechanical fastening means according to claim 1, wherein the mechanical fixation means comprises radially extending ridges in one layer, the radially extending ridges in the base part 102, 104, 204, 302 or in adjacent layers. Cooperated with corresponding radially extending valleys
Compressible seal or leadthrough. 6. The mechanically fastening means according to claim 1, wherein the mechanical fixing means is a radially extending protrusion 218 in one layer, and the radially extending protrusion 218 is in contact with a radially extending opening 220 in an adjacent layer. Cooperated
Compressible seal or leadthrough. A sealing system comprising a cable entry or pipe penetration for receiving two or more compressible base parts surrounding each cable or pipe,
The cable introduction or pipe penetration is disposed directly in the frame or in the opening through the wall or other structural partition or other partition forming the wall, and a barrier is formed in the opening or frame by the at least one compression unit and the two or more base parts. The compressible base part has at least one peelable layer for adaptation to the diameter of the cable or pipe, the at least one peelable layer is disposed in the profile, and the compressible base part is one of the preceding claims. Sealing system which is a base part according to any one of the preceding claims.

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