CN101338837B

CN101338837B - Seal device possessing fireproof protector

Info

Publication number: CN101338837B
Application number: CN2007101286966A
Authority: CN
Inventors: 尼可拉斯·阿克森
Original assignee: Roxtec AB
Current assignee: Roxtec AB
Priority date: 2007-07-05
Filing date: 2007-07-05
Publication date: 2010-08-11
Anticipated expiration: 2027-07-05
Also published as: CN101338837A

Abstract

The invention relates to a sealing device which is used to pass through tubes or other similar structure, which comprises two half bodies. The sealing device is placed in a barrel-shaped device or a hole of the wall or similar object. When the two half bodies are integrated to a whole body, a central hole-slot which is used for a pipe or a tube is formed. Each half body of the sealing device comprises two half pieces 1a and 1b. An expansion material layer 5 is positioned between the two half pieces 1a and 1b. A striping layer 6 is positioned in the inner side of the half pieces 1a and 1b. The striping layer 6 can be stripped for enabling the inside diameter of the sealing device to be adapted to the pipe or the tube to be contained. When fire breaks out, the expansion material layer 5 expands after heating, and is squeezed and contained in the pipe or the tube of the sealing device, thereby blocking the passage thereof.

Description

Seal arrangement with flameproof protection

Technical field

The present invention is about a kind of seal arrangement with flameproof protection, and it is provided with tubulose or catheter-like is passed or transformational structure, especially relates to a kind of seal arrangement that is used for plastic tube or conduit.

Background technique

Such seal arrangement generally is contained in the tubular device or hole that is contained in the wall.This seal arrangement can have many different mode of executions, and can be used for nibbling of seal isolation liquid, dust, gas, animal or termite etc.Usually, can there be very big pressure difference in the relative both sides of wall.So, playing a role by set mode in order to make seal arrangement, in it closely must be packed into tubular device, hole or other analog, seal arrangement must be suitable for actual installation dimension.This installation dimension is determined by the internal diameter of tubular device or hole.

And the pipe or the analog that are contained in the seal arrangement have many different sizes, and therefore, if can be adapted to the pipe of various outer diameter, this seal arrangement just will have suitable advantage.

Be contained in such seal arrangement through being usually used in different gas or liquid, as the air of water, compression, the gas that hydraulic fluid and culinary art produce etc.If in a side generation fire alarm of the wall that is provided with seal arrangement, fire might pass through wall by the liquid spread in pipe or the pipe.Way in the past adopts a kind of intumescent material exactly, and promptly a kind of material of expanded by heating is arranged on the position that is connected with hole.This intumescent material normally links to each other with hole as a kind of independent unit, and when fire alarm took place, it should seal hole.

Summary of the invention

Employed in this manual such as " axially ", " radially " and other similarly statement be be contained in seal arrangement in pipe or conduit relevant.

First purpose of the present invention promptly is directly to be provided with flameproof protection in seal arrangement.Like this, the present invention promptly has does not need advantage that flameproof protection is provided with as an independent unit; And, also can avoid adjusting flameproof protection to adapt to the problem of specific installation needs.This flameproof protection should be able to make the pipe or the conduit that are contained in the seal arrangement close automatically, to hinder any gas or liquid by this pipe or conduit.

Second purpose of the present invention promptly is to make a single seal arrangement can be used for many different installation dimensions, is used to cover the quantity of a large-scale different sealing device with minimizing.

Seal arrangement of the present invention is provided with tubulose or catheter-like is passed or transformational structure.The sealing device comprises two halfbodies, when these two seal arrangement halfbodies fit together, promptly forms the central hole slot that at least one is used for pipe or conduit.Each halfbody is provided with two and half sheets, is provided with one deck expanding material between the two halves sheet.

Seal arrangement is made by elastic material, is provided with mounting structure at its two ends.This mounting structure is connected on the seal arrangement by the screw ways of connecting.By screw and this mounting structure, seal arrangement can be compressed in the axial direction, and seal arrangement can expand in radial direction by axial compression the time.Just because of this radial expansion, the sealing device promptly closely has been installed in tubular device in the wall or the hole.

For one of ordinary skill in the art,, be easy to just can understand other purpose of the present invention and advantage by reading the detailed description of following preferred embodiment.

Description of drawings

Below be diagram simple declaration of the present invention:

Fig. 1 is the schematic perspective view of seal arrangement of the present invention; And

Fig. 2 is the generalized section of seal arrangement shown in Figure 1.

Embodiment

Seal arrangement of the present invention is used for that tubulose passes or transformational structure, and it has two identical halfbodies, and two halfbodies lump together and form the sealing device when using.As shown in Figures 1 and 2, two halfbodies of sealing device respectively are a semicylinder, and each halfbody has half sheet that two elastic materials are made, half sheet 1a and later half 1b before one.Be respectively equipped with a preceding mounting structure 2 and a post-mounting structure 3 in the end of forward and backward half sheet 1a and 1b.

Between forward and backward half sheet 1a and 1b, be provided with one deck expanding material 5.During actual the use, this expanding material can form a ring in seal arrangement.For the radially elongation of half sheet 1a, 1b, this intumescent material 5 has a short relatively radially elongation.In one embodiment, the radially elongation of this intumescent material 5 approximately be half sheet 1a, 1b total radially elongation 10%.This two halves sheet 1a, 1b are arranged at the both sides of the ring of intumescent material 5.Compare with

corresponding mounting structure

2,3, intumescent material 5 is arranged at the opposite end of each half sheet 1a, 1b, and the mechanical positioning mode of the shank 9 by being positioned at half sheet 1a, 1b is fixed on corresponding half sheet.The structural type correspondence of the structural type of shank 9 and forward and backward mounting structure 2,3.Therefore, shank 9 promptly has Semicircular structural type.

Mounting structure

2,3 is fixed on half sheet 1a, the 1b by screw 4.At

mounting structure

2,3, half sheet 1a, 1b, the corresponding hole that is provided with is to accommodate screw 4 in shank 9 and this intumescent material 5.The outer end of screw 4 is provided with screw thread and matches with the screw with post-mounting structure 3.The effect of the screw 4 that these match with

mounting structure

2,3 promptly is that double sheet 1a, 1b carry out radial compression, forms one by the shank between half sheet 1a, the 1b 9 and is used to accommodate the not maintenance space of compression-expansion material layer 5.Therefore, when shank 9 in compression process when mechanical separation half sheet 1a, 1b, this intumescent material 5 will can not be compressed.Even in the embodiment shown, what each seal arrangement halfbody used is two screws 4, and the quantity of screw 4 can come to determine as required.In the embodiment shown, screw 4 is a socket head screw.One of ordinary skill in the art is all known and can be used any fixing device to make

mounting structure

2,3 to move in opposite directions.Like this, just screw and nut might can be used.Preferably screw just can be tightened from a side.

The external diameter of general intumescent material 5 and shank 9 is more smaller than the remaining part of seal arrangement.

According to illustrated embodiment, preceding mounting structure 2 is to be positioned at a side of on half sheet 1, usually screw 4 being operated.3 of post-mounting structures are positioned on the opposite side of preceding relatively mounting structure 2.In many examples, the external diameter of preceding mounting structure 2 is bigger than the internal diameter of tubular device in the wall or hole.Do to make that the location of seal arrangement is more accurate like this, its preceding mounting structure 2 can prop up the end or the wall of tubular device.Plurality of fixed in or can extend to internal diameter with extension that preceding mounting structure 2 is made one above tubular device or hole, and need not to make the radius of this preceding mounting structure 2 to be provided with greatlyyer than the internal diameter of this tubular device or hole.

Some layers 6 of delaminating are arranged at the inboard of half sheet 1a, 1b.The mode of layer 6 materials that adopted and making thereof of delaminating can make it can be pasted together mutually after each seal arrangement halfbody production is finished, but can peel off them by the mode of craft again simultaneously.

The radially extension of half sheet 1 is general than the slightly larger of layer 6 of delaminating, so that half sheet 1 can be by radial compression, and layers 6 the obstruction that can not be subjected to delaminating.

Layer 6 the inside of delaminating is provided with a central plug axle 8, and central plug axle 8 is positioned at half sheet 1a, the 1b of each seal arrangement, as shown in Figure 2.But, in other embodiments, can only establish a central plug axle 8 that runs through seal arrangement.

When two seal arrangement halfbodies lump together, can form a central cylindrical groove, can be used for accommodating a pipe in it.In general, seal arrangement places in a tubular device or similar structure that is fixed in the wall.Perhaps, seal arrangement also can be installed in the hole that directly forms in the wall.

In actual use, the mode that two seal arrangement halfbodies are lived pipe with ring is placed.During installation, at first remove central plug axle 8.For seal arrangement can be cooperated with the diameter of pipe, can peel off one or more layer 6 of delaminating.Behind the peel ply 6 of peelling off suitable quantity, these two seal arrangement halfbodies can encase pipe in the form of a ring.Because have gap 7 in this intumescent material 5, intumescent material 5 can not hinder the halfbody of seal arrangement around being arranged on the pipe.Then, can make forward and backward

mounting structure

2,3 move in opposite directions by turning screw 4.When

mounting structure

2,3 moved towards each other, half sheet 1a, 1b were promptly by axial compression.By shank 9, intumescent material 5 can not be compressed, and the axial compression of half sheet 1a, 1b can cause the expansion radially of half sheet.Half sheet 1a, 1b can be inwardly or are outwards carried out axial expansion, and it outwards can seal, inwardly then seal towards pipe remaining space like this.Its outside expansion means that also seal arrangement will closely be fixed in tubular device or the hole simultaneously.

When fire alarm takes place when, intumescent material 5 meeting expanded by heating, flat tube or conduit intercept any air or liquid passes through pipe or conduit thereby its expansion meeting is squeezed inwards.Therefore, can stop fire by pipe or conduit.

Even if seal arrangement as shown in the figure has circular cross section, one of ordinary skill in the art is all clear, and seal arrangement of the present invention can have the cross section of Any shape, for example oval, square, rectangle, polygonal etc.

Claims

1. one kind forms the seal arrangement that tubulose passes structure or tubulose transformational structure, has two halfbodies, when two halfbodies lump together, can form the central hole slot that at least one is used to accommodate pipe; It is characterized in that: each halfbody has two and half sheets, and (1a 1b), is provided with intumescent material (5) between two and half sheets.

2. seal arrangement according to claim 1, wherein radial expansion can take place when being heated in this intumescent material (5), thereby inwardly squeeze flat tube, and and then obstructing tube in path; This intumescent material (5) by be located at the two halves sheet (1a, 1b) shank between with the mode of mechanical positioning be fixed in separately half sheet (1a, 1b) on.

3. seal arrangement according to claim 1, wherein (1a, will lack by the amount of extending axially 1b) than half sheet for the amount of extending axially of this intumescent material (5).

4. seal arrangement according to claim 3, wherein the amount of extending axially of this intumescent material (5) approximately is half sheet (1a, 1b) 10% of axial total elongation.

5. seal arrangement according to claim 1, wherein half sheet within it side be provided with some layers (6) of delaminating, the layer (6) of delaminating is pasted together each other, and can peels off to change the internal diameter of each center hole slot it by hand.

6. seal arrangement according to claim 5, wherein this intumescent material (5) radially thickness and half sheet (1a, radial thickness 1b) is corresponding, but do not comprise delaminate the layer (6).

7. seal arrangement according to claim 5, (1a, will lack by the amount of extending axially 1b) than half sheet of accommodating it for the amount of extending axially of the layer (6) of wherein delaminating.

8. seal arrangement according to claim 1, wherein the inboard of this intumescent material (5) is formed with a gap (7).

9. seal arrangement according to claim 1, wherein (1a 1b) is made by elastic material half sheet.

10. seal arrangement according to claim 1, wherein at half sheet (1a, be respectively equipped with preceding mounting structure (2) and post-mounting structure (3) on opposite end 1b), and forward and backward mounting structure (2,3) by be contained in half sheet (1a, 1b) go up the screw (4) in the perforation and be located at half sheet (1a, 1b) intumescent material between (5) is connected with each other, intumescent material (5) with mechanical shank be positioned at half sheet (1a, 1b) between.

11. seal arrangement according to claim 1, wherein the sealing device is essentially cylindrical shape.

12. according to each described seal arrangement of above claim, it is that catheter-like is passed structure that wherein said tubulose passes structure, described tubulose transformational structure is the catheter-like transformational structure, and described pipe is a conduit.