초록 ▼

The invention relates to a wall sleeve with a ventilation opening at a guide tube (2), and a cover plate (5), which is mounted at the end of the guide tube and can be moved between a closing position and an open position, said cover plate (5) automatically opening and closing against a reset force,

The invention relates to a wall sleeve with a ventilation opening at a guide tube (2), and a cover plate (5), which is mounted at the end of the guide tube and can be moved between a closing position and an open position, said cover plate (5) automatically opening and closing against a reset force, propelled by the pressure difference between the air pressure in the guide tube (2) and the external ambient air.

대표청구항 ▼

1. Wall sleeve between an inside and an outside of a wall (4), comprising: a guide tube (2); a ventilation opening at an end of the guide tube (2); and a cover plate (5), which is mounted at the end of the guide tube and can be moved by a pressure difference of an airflow between a closing position

1. Wall sleeve between an inside and an outside of a wall (4), comprising: a guide tube (2); a ventilation opening at an end of the guide tube (2); and a cover plate (5), which is mounted at the end of the guide tube and can be moved by a pressure difference of an airflow between a closing position and an open position, at an inside of which is formed a hyperbolically shaped air stream body (6), characterized in that the cover plate (5) is conducted along a central axis on guide arms (7) in the guide tube (2), and an air baffle (15) streamlined as a funnel shaped ring is mounted on said cover plate (5), wherein the funnel shaped ring of the air baffle (15) at first runs parallel to a central axis of the guide tube (2) on the inside, and then widens in such a way that the airflow is deflected outwards by approximately 70° in relation to the central axis, and the cover plate (5) automatically opens and closes against a reset force, propelled by the pressure difference between an air pressure in the guide tube (2) and an external ambient air thereby leading the air flow to a rim of the cover plate (5) and to the outside. 2. Wall sleeve according to claim 1, characterized in that the guide tube (2) has a round, oval or rectangular cross section. 3. Wall sleeve according to claim 1, characterized in that the reset force is caused by the weight of the movable cover plate (5) on inclined track ways (14). 4. Wall sleeve according to claim 1, characterized in that the reset force is produced by a spring (22) which affects the cover plate (5) and draws it to the closing position. 5. Wall sleeve according to claim 4, characterized in that the spring (22) works on a swinging lever (8) which on one end is hinged jointed on an inner surface of the guide tube (2), and on the other end affects a centre of the cover plate (5). 6. Wall sleeve according to claim 5, characterized in that the swinging lever (8) is connected by means of a con-rod (9) to the centre of the cover plate (5). 7. Wall sleeve according to claim 4, characterized in that a spring preload and/or a spring stiffness of the spring (22) are adjustable. 8. Wall sleeve according to claim 4, characterized in that an inclination of the guide tube (2) is compensated by an adjustment of the spring tension. 9. Wall sleeve according to claim 1, characterized in that the reset force is transferred to the centre of the air stream body (6) by a pre-tensioned pull-spring (22), via a hinged jointed V-shaped swinging lever (17). 10. Wall sleeve according to claim 9, characterized in that the position of the point of application of the spring force at the swinging lever (17) is adjustable. 11. Wall sleeve according to claim 9, characterized in that the pressure difference is measured by an angularity of the swinging lever (17), or an extension distance of the cover plate (5). 12. Wall sleeve according to claim 1, characterized in that the reset force is produced by a weight (18) at one end of a hinged jointed V-shaped swinging lever (17), whose other end is connected with the centre of the air stream body (6). 13. Wall sleeve according to claim 12, characterized in that the swinging lever (8) is connected via a con-rod (9), or a thread with the centre of the cover plate (5). 14. Wall sleeve according to claim 12, characterized in that the position of the weight (18) at the swinging lever (17) is adjustable. 15. Wall sleeve according to claim 1, characterized in that the reset force is produced by means of a torsion spring (20), which affects the centre of the air stream body (6) via a lever (21). 16. Wall sleeve according to claim 1, characterized in that at least two guide arms (7) are placed inside the guide tube (2). 17. Wall sleeve according to claim 16, characterized in that the guide arms (7) are formed as a linear guidance or as a linear pullout. 18. Wall sleeve according to claim 16, characterized in that the guide arms (7) in the guide tube are guided with roller bearings (13). 19. Wall sleeve according to claim 18, characterized in that the roller bearings (13) are hinged resiliently. 20. Wall sleeve according to claim 1, characterized in that the air baffle (15) is permanently fixed to the guide arms (7). 21. Wall sleeve according to claim 1, characterized in that the hyperbolically-shaped surfaces (16) of the air stream body (6) are axially symmetrical in the case of a round guide tube (2), and accordingly, in the case of a rectangular guide tube (2), are aligned with the sides. 22. Wall sleeve according to claim 1, characterized in that the air stream body (6) has a plastic sheathing with a filling of insulating material. 23. Wall sleeve according to claim 1, characterized in that a seal (11) is provided at the seat-engaging surface of the cover plate (5) towards the guide tube (2). 24. Wall sleeve according to claim 1, characterized in that the cover plate (5) serves as a decorative plate on the outside. 25. Wall sleeve according to claim 1, characterized in that a replaceable decorative plate (50) is mounted on the cover plate (5). 26. Wall sleeve according to claim 1, characterized in that, in the case of a non-horizontal installation of the wall sleeve, the reset force is produced by the own weight of the cover plate (5), the air stream body (6), the air baffle (15) and the guide arms (7), and is reduced by pre-tensioned spring force acting against the weight force. 27. Wall sleeve according to claim 1, characterized in that the air flow during air delivery mode is directed from the outside into the house. 28. Wall sleeve according to claim 1, characterized in that a flange (30) is mounted at the exterior end of the guide tube (2). 29. Wall sleeve according to claim 28, characterized in that a sealing ring (11) is embedded in the flange (30). 30. Wall sleeve according to claim 28, characterized in that magnets (31) are embedded in the flange (30) and in the cover plate (5). 31. Wall sleeve according to claim 28, characterized in that mounting fins (32) are attached at the flange (30) which reach in the wall opening for the guide tube (2). 32. Wall sleeve according to claim 1, characterized in that a wind generator (40) is incorporated in the guide tube (2), said generator supplying electrical energy for visual effects, or for charging a rechargeable battery. 33. Wall sleeve according to claim 1, wherein said air baffle surrounds said hyperbolically shaped air stream body and the airflow passes between said hyperbolically shaped air stream body and said air baffle.