KR19990006813A - Connection and Attachment Device - Google Patents

Abstract

1. TECHNICAL FIELD OF THE INVENTION

Connection and Attachment Device

2. The technical problem to be solved by the invention

Provides a new connection and attachment device that makes work easy by simple means.

3. Summary of Solution to Invention

A first part and a second part (1,2) made of a relatively thick and heat-resistant material, and in the connection of the first and second parts (1,2), the first part (1) is a first sexual connection element (4) is provided, and the second part (2) is provided with a second sex connection element (5), one of the first and second sex connection elements being a male element of substantially the same thickness, and of the first and second sex connection elements. The other is for receiving a male element in close sliding fashion, for a heat resistant structure in which the depth 4 is a female element with a grooved groove of a width d adapted to the thickness of the male element, which is substantially larger than the width. Connection and attachment devices.

4. Important uses of the invention

Used in the shipbuilding field for the connection of air conditioning ducts

Description

Connection and Attachment Device

The present invention relates to a connection and attachment device for fire resistant duct sections or other structures.

Conventionally, in the shipbuilding field, for example, air conditioning ducts have been mainly installed by welding. This process is disadvantageous not only in terms of fire safety but also in terms of work safety. Further, the joining of the duct by welding destroys the surface finish of the duct or adversely affects the material of the duct. This damages the final quality and strength of the duct and its resistance to corrosion and other wear. Therefore, after finishing the installation, repair of the surface finish may be necessary, which may require an access panel provided in the duct to access the interior of the duct. It is also difficult to remove the welded structure and replace the part.

It is also understood that the current fire safety standards that must be observed by these ducts are very strict. Thus, any defect that can occur during installation can have serious consequences.

In general, air conditioning ducts installed in ships are rather large in size and are made of a plate-shaped metal material, for example a steel sheet of about 3 to 6 mm thick. Ducts are usually rectangular in cross section, but other forms, such as cylindrical cross sections, are possible.

Another example of a structure that must meet stringent fire safety standards is the ship's fire doors. Conventionally, fire doors have been installed in a dry place by welding. However, when a ship, especially a large ship, is launched, the structure of the ship is animated, ie twisted and warped. This generally results in torsion and bending of the door frame and can have serious consequences with fire doors. The frame of the door is usually removed by flame cutting, straightened out and reinstalled by welding. This consequently requires additional work and additional surface finishing work to restore the resistance required for fire and corrosion, for example.

It is an object of the present invention to eliminate the above disadvantages and to provide a new connection and attachment device which is easily carried out by a simple method.

1 to 4 show four other embodiments of the invention.

Explanation of symbols for main parts of the drawings

1, 2 duct part 4: end area

5: Female element 6, 7: Bracket

8: tightening bolt 9: fixing structure

10: adapter

The invention is based on the idea that at the connection point to which the parts are connected, an easily removable mechanical coupling is formed and nevertheless ensures proper clamping and heat resistance. This is achieved by the male and female connecting elements.

The female element has a fork-shaped cross section, and the depth of the fork is preferably at least several times the inner width of the fork and matches the dimensions of the male element. The installation depth of the male element is at least five times the inner width of the female element fork. This enhances the stability of the mechanical coupling and enables close connection with the direct contact of the female and male elements without the need for a separate sealing element. This also allows the use of other materials, such as nonmetallic composites, for example, as assembly and installation can be done without welding or similar work.

The outer end of the fork of the female element may be somewhat tapered or slightly bent outward to facilitate engagement with the male element.

The male and female connecting elements according to the present invention may be advantageously formed, and a fixed female element having a fixed male element is provided at one of two portions to be connected and a dimension is identical to the other. In this way a modular structure assembled into a standardized part can be achieved simply, without a separate intermediate part.

For example, it is reasonable to maintain a connection according to the present invention with a clamping system made from a practical flange / bolt / nut connection in view of ease of installation and removal for maintenance and repair work. By sizing the flange of the clamping system so that the structure in question can be used to tighten in place, the need for an auxiliary mounting or support structure can be avoided.

Alternatively, it is possible to provide both a fixed male element or a female element similar to the two parts to be connected to each other, more preferably to provide a male element. The device has separate connections or adapters positioned between the parts to be connected to each other, and both ends of the connection are provided with female or male elements compatible with fixed female or male elements.

The heat resistant portion and the connecting portion are advantageously made of steel sheet having a thickness of 3 to 6 mm. This is usually sufficient to carry out the current fire safety standards, for example at least with respect to the air conditioning duct. As also pointed out above, simple mechanical connection and attachment devices also allow the use of other materials that comply with fire safety standards.

When applied to ducts, the use of separate connections or adapters is particularly advantageous because the ends of the two ducts to be connected to one another can then be similar. In the case of a duct, the female element and the male element may be made of the same material as the part to be connected to each other, for example a plate-shaped metal. Parts according to the present invention can be taken to the installation site in a completely finished state, the work to be done at the installation site, usually the work to be done in a narrow space will be significantly reduced.

The end region of the connection part made of plate metal forms one male / male element suitable for the connection of the duck part provided with the female elements without an independent additional structure. The connection can be standardized and used at all normal connections in the duct system.

The depth of the female element fork can be of a considerably larger dimension than the final installation depth of the male element in combination with the female element, for example, the installation of the duct section between two fixed points is made easier. When the duct sections are finally connected and attached to each other, the installation depth is the length of the male element inside the female element. Such connections are quite easy when removing any duct from the mounted duct section. The connection also permits thermal expansion in the longitudinal direction of the duct.

The main advantage of the present invention is that the need for an access panel in the duct is eliminated. Eliminating the need to weld the duct together also eliminates additional work steps and structures associated with the welding operation, thereby reducing the risk of any defects in heat resistance and durability. In addition to the joints, the ducts can be finished and inspected for quality before assembly.

The female and male elements for mounting the fire doors on the bulkhead may also be made of the same material as the two components to be connected, but these will be lighter structures than the actual bulkheads and fire doors. Male and female connection allows for relative movement of the frame and bulkhead of the door, thereby avoiding damage due to torsion and bending.

The invention is described in more detail by way of example with reference to the accompanying drawings.

(Example)

The cross section in FIG. 1 shows the connection point of one wall of two air conditioning duct sections 1 and 2. The fork-shaped female element 5 is welded to the duct 2, in which the end region 4 of the duct part 1 is fitted together as a male element. As shown, the connection is tightened by the corner rods or brackets 6 and 7 welded to the duct sections 1 and 2 and the fastening bolts 8 joining them so that they do not move. . The installation depth of the male element is about five times the inner width (d) of the female element (5).

2 shows an embodiment in which the inner depth H of the female element 5 is considerably deeper than the installation depth h of the male element 4. This suggests the possibility of installing the duct section in a confined space in which the duct sections are first moved close to each other, and then the final relative position is moved slightly further away so that the duct installation in the desired position is possible. The fork outer end 3 of the female element 5 bends outward slightly, to facilitate the placement of the male element 4 within the fork of the female element 5. Instead of bending, you can taper or round the outer end of the fork. 2 also shows how the corner bar 6 can be used, for example, to fasten the duct 1 to the fastening structure 9, for example to a bolt 12 or the like. Instead of bolting, a weld can also be used.

In the embodiment shown in FIG. 3, independent connections or adapters 10 in which two female elements 5 are welded together are used, in this way they open in opposite directions to each other. The end regions of the duct portions 1 and 2 connected to each other form a male element 4 suitable for the connecting portion 10, respectively. Since the connecting part 10 naturally has a male element, a female element is formed in the duct part, but this is a more difficult solution as a practical problem. It is also advantageous to use an independent connection at this connection point where the direction of the duct changes to a device that allows sufficient relative movement of the female and male elements to accommodate the movements that occur when the vessel is launched. This also facilitates any adjustments needed later. On the other hand, since the inner depth H of the female element is larger than the inner width d of the female element, and moreover corresponds to the thickness of the material of the male element, sufficient tightening is also achieved.

As an embodiment for the duct, the female element and the male element device of the embodiment shown in FIG. 4 can be replaced and adopted as the most practical method for the construction of a widespread ship. Furthermore, referring to FIG. 3, an independent connection or adapter may be provided between the partition wall and the door frame in a manner corresponding to that described above.

The invention is not limited to the described embodiments, and many variations may be included in the claims.

According to the invention, the need for an access panel in the duct can be eliminated. Eliminating the need to weld the duct together also eliminates additional work steps and structures associated with the welding operation, thereby reducing the risk of any defects in heat resistance and durability. In addition to the joints, the ducts can be finished and inspected for quality before assembly.

The female and male elements for mounting the fire doors on the bulkhead may also be made of the same material as the two components to be connected, but these will be lighter structures than the actual bulkheads and fire doors. Male and female connection allows for relative movement of the frame and bulkhead of the door, thereby avoiding damage due to torsion and bending.

Claims (16)

Comprising a first and a second part made of a relatively thick and refractory material, said first and second parts being connected together and forming a firewall between the potential fire-prone area and the area to be protected from fire. As a structural connection and attachment device, in the connection of the first and second parts, the first part is provided with a first sexual connection element, and the second part is provided with a second sexual connection element. Wherein one of the connecting elements of the first and second shaping is a male element of substantially uniform thickness, and the other of the connecting elements of the first and second shaping is adapted to the close sliding fit. And a female element having a slot-shaped groove having a width corresponding to the thickness of the male element, the depth of which is substantially greater than the width, so as to be accommodated therein. 2. A connection and attachment device for a fireproof structure according to claim 1, wherein the connecting element of the first mold is a male element attached to the first portion and the connecting element of the second mold is a female element attached to the second portion. 2. A connection and attachment arrangement for a fireproof structure according to claim 1, wherein the depth of the female element is substantially greater than the installation depth of the male element when the parts are connected. The fire-resistant connection and attachment device of claim 1, wherein the female element has an outer end formed to facilitate engagement with the male element. 2. A connection and attachment arrangement for a fireproof structure according to claim 1, wherein the installation depth of the male element is at least five times the width of the slotted groove. 2. A connection and attachment device for a fireproof structure according to claim 1, wherein the connecting elements of each molding are in direct contact. 2. A connection and attachment device for a fireproof structure according to claim 1, wherein the connecting element is made of metal. The connecting and attaching device for a fireproof structure according to claim 1, wherein the connecting element is made of a nonmetallic material. 2. The connection and attachment of the fire resistant structure according to claim 1, further comprising a clamping system for maintaining engagement of the connection elements. 10. A refractory connection and attachment device according to claim 9, wherein the clamping system comprises a flange / bolt / nut connection. 11. A fireproof construction connection and attachment device as recited in claim 10, wherein the flange connects one of the parts to the installation site. A relatively thick and comprising first and second parts made of a fire resistant material, said first and second parts being connected together and forming a firewall between the potential fire-prone area and the area to be protected from fire. As a structural connection and attachment device, in the connection of the first and second parts, the first part is provided with a first sexual connection element, and the second part is provided with a second sexual connection element. And further comprising a connecting portion coupled to the connecting elements of the first and second moldings respectively, the connecting parts having connecting elements of the third and fourth moldings respectively opposite to the connecting elements of the first and second moldings. And one of the connecting elements of the third shaping is a male element of substantially uniform thickness, and the other of the connecting elements of the first and third shaping is deep enough to receive the male element by a close sliding fit. Autumn Substantially larger and are fire-resistant structural connection, it characterized in that the female element has a groove in the shape of the slot width for the thickness of the male element and the mounting device. 13. The connection and attachment device for a fire resistant structure according to claim 12, wherein the connecting elements of the first and second moldings are the same molding. The fire-resistant structural connection and attachment device according to claim 13, wherein the connecting elements of the first and second moldings are male elements. A fire resistant duct structure comprising first and second duct segments made of a relatively thick, fire resistant material and joined together, wherein in the connection of the first and second duct segments, the first duct segment is formed of a male element of substantially the same thickness. The second duct segment has a fire resistant duct having a female element having a slot-shaped groove of width substantially larger than the width and adapted to the thickness of the male element for receiving the male element in a close sliding fit. rescue. A fire door installation comprising a barrier and a door frame made of a relatively thick and fire resistant material, wherein in the connection of the door frame to the barrier, the door frame is provided with a first element and the partition is provided with a second element, One of the two elements is a male element of substantially the same thickness, and the other of the first and second elements is substantially larger than the width to accommodate the male element in close sliding fit, A fire door device, which is a female element having a slot-shaped groove of a width adapted to thickness.