FI103213B - Coupling system between an air chamber and a term inhalation means connected to it - Google Patents

Description

103213

Connection system between the air chamber and the associated ventilation terminal Terminal Kopplingssystem mellan en luftkammare och et account denna anslutet terminalorgan för ventilation 5

The invention relates to a connection system between the air chamber and the associated ventilation terminal 10.

In prior art solutions, air is led into the room space by causing air to flow from the air tube into the air chamber and thereafter to the air distribution terminal, preferably to the air distribution valve, and further through to the room space. A problem in the structures mentioned is the adjustment of the correct height of the valve. The ventilation ducts and associated air chambers are located at a certain height. However, the position of the valve is determined by the ceiling structure and the requirements of the room. The air duct and its associated air chamber cannot easily be made height-adjustable. Thus, the positioning of the valve to the correct elevation in the room space has been accomplished by the use of separate, difficult to position connection pipes. In certain solutions, the terminal member must be as close as possible to the air chamber and, on the other hand, in certain installations, it must be possible to locate the valve at a considerable distance from the air chamber via an inexpensive pipe connection. Thus, in the prior art solutions, separate additional pipes had to be inserted between the valve and the air distribution chamber, allowing the valve to be moved sufficiently far from the air chamber.

; The aforementioned use of auxiliary pipes has caused difficulties since the structure must be tight and no leaking seams should occur.

This application provides an improvement on the above technique. The coupling system according to the invention comprises a separate connection collar which is removably connectable to the air distribution chamber body around the air flow opening of the air distribution chamber. Using said connection collar, the air distribution terminal member, preferably the valve, can be connected to the air distribution chamber so that the valve can be easily positioned at different positions relative to the connection collar. The valve connection pipe comes inside the pipe section of the connection collar. The inner diameter of the connecting collar is slightly larger than the outer diameter of the connecting tube connected to the valve 5. The valve connection tube further comprises a groove and an annular seal therein. When the desired valve position is reached, the connecting collar and the valve connecting tube are locked together, for example, by screws or rivets passed through the pipe sections.

10 The diameter of the air flow opening of the air distribution chamber is also slightly larger than the outer diameter of the pipe section of the connecting collar. In this case, the connecting collar is pivotable so that the pipe portion of the connecting collar is located inside the air distribution chamber. In said embodiment, the connecting collar can further be connected from its flange by a quick connection to the air distribution chamber. By extending the tubular portion 15 of the connecting collar to the inside of the air distribution chamber, an additional adjustment distance is obtained to adjust the height of the valve.

The invention is applicable not only to air distribution devices, whereby air is distributed from the air manifold to the air manifold via the air chamber and the associated valve, preferably through the valve to the room or the device solution can also be used in the exhaust air solution.

The system also allows operation whereby the connection collar is completely omitted and the valve 25 is directly connected to the air chamber body from its body.

For a connection system according to the invention for connecting a ventilation terminal member | ; the air chamber is characterized by what is claimed.

3, 103213

The invention will now be described with reference to some preferred embodiments of the invention shown in the figures of the accompanying drawings, but which are not intended to be limited thereto.

Fig. 1A shows a connection system between the air chamber and the associated valve according to the invention, comprising a separate connection collar. The figure illustrates the components associated with the system of the invention, separated before assembly. The valve is shown in Figure 1C.

Fig. 1B shows the system of Fig. 1A in assembled form.

Fig. 1C is a cross-sectional view of the system of the invention in the position of the collar in which the tube portion of the collar protrudes from the air chamber 1. In the representation of Fig. 1C, a valve 16 is introduced into the connecting collar.

15

Figure ID shows a separate view of the structure of the quick coupling part, i.e. the quick coupling.

Fig. IE shows the maximum distance adjustment between the valve and the air chamber in relation to the collar position shown in Fig. IA-1C.

20th Figure 1F shows the minimum distance position with the collar tube portion extending from the air chamber body.

Fig. 1G shows the attachment of the seal 15 to the edge A j of the air opening A 1.

25; Fig. 2A shows a collar in the position extending into the air chamber interior O and showing the maximum position for adjusting the distance between the valve and the air chamber body.

Figure 2B shows the mini-30 position of the distance between the valve and the air chamber body as the pipe section of the connecting collar extends into the interior of the air chamber O.

4, 103213

Figure 3 illustrates the use of a system according to the invention without an air connection collar in which the valve is directly attached (not shown) to the air chamber body and the valve connection tube extends into the chamber O of the air chamber and seal 15 seals between the valve and the chamber.

5

Fig. 1A shows a connection system 10 between valve 16 and associated air chamber 11 according to the invention for adjusting the distance between air chamber 11 and valve 16 (Fig. 1C). In Figure 1A, the components of the system are shown separated. As shown in Figure 1A, system 10 comprises an air chamber 11 and 10 therein with an airflow orifice 12. System 10 comprises a connecting collar 13. · .. to the body R. of air distribution chamber 11. Quick coupling means 14aj, 14a2 ·. are locking portions comprising a pivotable arm portion 14b which can be secured to a flange portion 13aj of the collar 13 when coupled to the collar R of the collar 13. The air distribution chamber 11 comprises a flow port A 1 and A 2. An air channel is connected to the flow port A2 and a collar 13 is connected to the flow port A 1 and through it a valve 16, which may be an inlet or outlet air valve.

Preferably, there are a plurality of quick coupling means 14aj, 14a2- .. around a circular flow opening 11 in a straight line. Preferably, there are four of them. The aperture Aj comprises a seal 15 at its bounding edge I ', whereby the shaft 14b of the quick connector 14 is pivotable to the flange 13aj of the connecting collar 13 so as to press the flange 13aj against the seal 15. This makes the joint tight.

25

In the embodiment shown in Fig. 1A, the collar portion 13 is first secured to the body R of the air chamber 11 via the quick-connect portions 14a 14a2 · ..

As shown in Fig. 1B, the collar portion 13 is secured to the air chamber 11 by means of the quick-connect portions 14aj, 14a2.

5, 103213

As shown in Figure 1C, the valve 16 is brought into contact with the pipe portion 13a2 of the connecting collar 13 so that the connecting pipe 16aj of the valve 16 comes inside the pipe portion 13a2 of the connecting collar 13. Thus, the outer diameter Dj of the connecting pipe 13aj of the valve 16 is slightly smaller than the inner diameter D2 of the pipe section 13a2 of the connecting collar 13. Again, the outside diameter D3 of the pipe portion 13a2 of the connection table 5 is slightly smaller than the inside diameter D4 of the air opening 11 in the body R of the air chamber 11. The flange 13aj of the connecting collar 13 is perpendicular to the central axis of the pipe section 13a2 of the connecting collar 13.

Fig. 1D shows on an enlarged scale the quick coupling means 14aj. As shown in the figure, the quick connector 14aj comprises an arm portion 14b. The arm portion 14bj comprises the arm portion 14cj and the arm portion 14c2 substantially perpendicular to it and further the third arm portion 14C3 in the direction of the arm portion 14cj. The rivet 14dj is inserted through the hole f of the shaft portion 14cj and secured to the body R in the counter rivet piece 14ej. As shown, the shaft portion 14bj is pivoted about an axis X such that the annular flange portion 13aj of the connecting collar 13 engages the shaft portion MC3 and by means of the shaft portion holds the flange 13aj in the seal 15. The seal 15 is preferably annular Uj to the circular border AJ of the aperture Aj. The seal 15 protrudes somewhat from the inside 20 of the opening 11 towards the edge AJ of the opening A 1.

Fig. IE shows a second extreme position-based distance adjustment of the connection collar 13 shown in Fig. 1B, where a maximum distance between valve 16 and air chamber 11 body R is achieved. The valve 16 is secured to the collar 13 by, for example, 25 rivets 17aj, screws or the like. The rivets 17aj, screws or the like are inserted through the pipe walls of the connecting pipe 16aj of the valve 16 and the pipe section 13a2 of the connecting collar 13. As shown in the figure, the connecting tube 16aj of the valve 16 comprises a groove U2 and an annular seal 16bj therein. The ring seal 16bj comes into contact with the inner surface of the pipe section 13a2 of the connecting collar 13 and seals the connecting surfaces.

30 6 103213

FIG. 1F shows the second extreme position of control associated with the position of the collar 13 shown in FIG. 1A, wherein the distance between the valve 16 and the air chamber 11 is minimal.

Figure 1G is an axonometric and partial view showing the location of the seal 15 at the rim A 1 of the opening A 1.

Fig. 2A shows an adjustment position in which the connecting collar 13 is pivoted so that the conduit portion 13a2 of the connecting collar 13 extends into chamber 10 O of the air distribution chamber 11. The maximum distance between the control R and the body R of the air distribution chamber 11.

Figure 2B shows the minimum distance between the valve 16 and the body R for adjusting the distance.

Also in the embodiment of Figure 2A and 2B, the body R and the valve 16 are connected to one another by means of connectors 17aj, for example rivets or the like.

Figure 3 illustrates the use of the system such that the connection collar 13 is not used and the valve 16 is inserted into the connection conduit 16aj so that it extends into the interior space O of the air chamber 11.

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Claims (7)

103213 A connection system between the air chamber (11) and the associated ventilation terminal (16), preferably a valve, characterized in that the connection system comprises 5 separate connection collars (13) which can be positioned relative to the body (R) of the air distribution chamber (11). the pipe portion (13a2) of the connecting collar (13) protrudes from the air chamber (11) and that the connecting collar (13) can alternatively be positioned so that its pipe portion (13a2) extends into the inner chamber space (O) of the a wide adjustment distance for connecting the air-10 exchange terminal member (16), preferably a valve, to the connecting tube (16aj) to the connecting portion (13a2) of the connecting collar (13). A coupling system according to claim 1, characterized in that the connecting collar (13) comprises a flange (13a a) and a related pipe section (13a2). 15 Connecting system according to one of the preceding claims, characterized in that the air chamber opening (12) in the air chamber (11) has a quick connection means (14aj, 14a2 · ..) »by means of which the connection collar (13) is removably connected to the air chamber (11). ) to the body (R). 20th A system according to any one of the preceding claims, characterized in that the quick coupling means (14a ^, 14a2 ·. ·) Are arranged around the air flow opening (12) of the air chamber (11) and each quick coupling means (14a1, 14a2 · ..) ) which is pivotable so that the shaft portion (14bj) engages with the flange (13aj) 25 of the connecting collar (13) and clamps the connecting flange in the air chamber (11) against its airflow opening (12): surrounding seal (15). A coupling system according to the preceding claim, characterized in that the shaft portion (14bj) of the quick coupling means (14aj, 14a2 ·.) Comprises a first shaft portion 30 (14cj) and a second shaft portion (HC2) at an angle thereto and further a third shaft portion (Mcj), which is parallel to the first shaft portion (14cj) and that in the connection condition 103213 said third shaft portion (Hcg) is located against the flange (13aj) of the connecting collar (13) and that the shaft portion (14b) is pivotable about the axis (X). A coupling system according to any one of the preceding claims, characterized in that the opening (12) is surrounded by a seal (15) comprising a groove (Uj) from which the seal (15) is brought into contact with the circumferential edge (Aj) of the opening (Aj). Connection system according to one of the preceding claims, characterized in that in the connection system a terminal ventilation element, preferably a valve (16) 10 is connected from a connecting pipe (16aj) connected to the valve (16) to a connecting part (13a2) thereof ), the outer diameter (Dj) of the connecting tube (16ap) of the valve (16) is slightly smaller than the inner diameter (D2) of the tube portion (13a2) of the connecting collar (13) and that 13a2) the outer diameter (D3) is slightly smaller than the diameter (D4) of the air flow opening (12) of the air distribution chamber (11) and that the connecting pipe (16aj) of the valve (16) comprises a groove (U2) and that there are rivets, screws 17aj, 17a2 or the like, which are passed through the pipe section (13a2) and the connecting pipe (16aj) to connect them together. 20 *> 103213