DK160652B

DK160652B - Throttle arrangement for ventilation ducts

Info

Publication number: DK160652B
Application number: DK470486A
Authority: DK
Inventors: Christer Groenlund
Original assignee: Erce Oy
Priority date: 1985-10-02
Filing date: 1986-10-02
Publication date: 1991-04-02
Also published as: DK470486D0; DK470486A; FI74132C; SE8604189L; NO160232C; NO160232B; FI853819A0; FI74132B; FI853819L; DK160652C; NO863925L; SE457203B; SE8604189D0; NO863925D0

Description

DK 160652 BDK 160652 B

oisland

Opfindelsen angår en drøvleanordning til rør i et ventilationssystem, hvor rørets kappe er forsynet med huller, der efter behov kan lukkes for at tilvejebringe drøv-ling.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pipe throttle device in a ventilation system, wherein the pipe casing is provided with holes which can be closed as needed to provide for throttling.

5 Ved kendte drøvleanordninger lukkes hullerne på rørets kappe for tilvejebringelse af drøvling f.eks. ved direkte at overdække dem ved hjælp af et andet rør, som efter behov trækkes ind over røret. Da drøvleanordningen i reglen er beliggende i et eller andet lukket rum, må det-10 te først åbnes, inden reguleringen af drøvlingen kan udføres. Dette er besværligt og tidskrævende.5 In the case of known throttle devices, the holes on the casing of the pipe are closed to provide throttling e.g. by directly covering them with the help of another tube which is retracted over the tube as needed. Since the throttle device is usually located in some enclosed space, it must first be opened before the control of the throttle can be performed. This is cumbersome and time consuming.

Det er formålet med opfindelsen at fjerne de ovenfor anførte ulemper, og anordningen ifølge opfindelsen er ejendommelig ved, at den del af røret hvor hullerne be-15 finder sig, udgøres af flere efter hinanden liggende rørstykker, som delvis overlapper hinanden, således at hullerne i rørstykkerne i den åbne stilling ligger ud for hinanden og i lukket, drejet stilling ligger ved siden af hinanden, så hullerne lukkes. Ved brug af opfindelsen kan 20 man udføre regulering af drøvlingen ved at dreje drøvleanordningen fra enden af anordningen f.eks. ved hjælp af en lille elektromotor. Elektromotoren kan udtage en impuls f.eks. fra en i det omgivende rum anbragt termostat, som ved hjælp af i sig selv kendt teknik tilvejebringer im-25 pulser til elektromotoren.The object of the invention is to remove the disadvantages mentioned above, and the device according to the invention is characterized in that the part of the pipe in which the holes are located is made up of several consecutive pipe pieces which partially overlap, so that the holes in the the pipe pieces in the open position are adjacent to each other and in the closed, rotated position are adjacent to each other so that the holes are closed. Using the invention, the throttling device can be controlled by rotating the throttle device from the end of the device e.g. using a small electric motor. The electric motor can take out a pulse e.g. from a thermostat disposed in the surrounding space, which by means of the prior art provides impulses to the electric motor.

I en hensigtsmæssig udførelsesform for opfindelsen består rørstykkerne af to ulige store med hinanden forbundne kapperingdele med rundtgående hulrækker i begge dele. Sådanne rørstykker kan bekvemt fremstilles f.eks.In a convenient embodiment of the invention, the pipe pieces consist of two odd sized interconnected casing parts with circumferential hollow rows in both. Such tubes can be conveniently manufactured e.g.

30 af plast, metal eller oven i købet keramik, og det nødvendig antal rørstykker kan let monteres efter hinanden.30 of plastic, metal or even ceramic, and the required number of pipe pieces can easily be mounted one after another.

En anden udførelsesform for opfindelsen er ejendommelig ved, at rørstykkerne er forsynet med et begrænsningsorgan, såsom en tap eller skrue, og det tilsvarende 35 sted på det modsatte rørstykke er forsynet med et hak, der tillader en bestemt lille drejningsbevægelse mellemAnother embodiment of the invention is characterized in that the pipe pieces are provided with a restraining means such as a pin or screw and the corresponding place on the opposite pipe piece is provided with a notch which permits a certain small rotational movement between

DK 160652 BDK 160652 B

22

OISLAND

åben og lukket stilling. Rørstykkerne drejes således i forhold til hinanden kun mellem lukket og åben stilling, idet hele drøvleanordningen kan reguleres trinløst mellem åben og lukket stilling. Dersom begrænsningsorganet udgøres af 5 en skrue, kan en del af rørstykkerne låses fast til hinanden enten i en ønsket åben eller lukket stilling, hvor de ikke kan drejes i forhold til hinanden.open and closed position. Thus, the tubes are rotated relative to each other only between the closed and open positions, the entire throttle device being continuously adjustable between open and closed positions. If the limiting member is constituted by a screw, a portion of the pipe pieces can be locked to each other either in a desired open or closed position where they cannot be rotated relative to each other.

Opfindelsen forklares nærmere i det følgende ved hjælp af en udførelsesform og under henvisning til tegnin-1g gen, hvor fig. 1 viser drøvleanordningen set fra siden, idet et rørstykke og et endedæksel er løsnet fra drøvleanordningen, fig. 2 et tværsnit langs linien II-II i fig. 1, og 15 fig. 3 det samme som i fig. 2, men i en anden, dvs.The invention will now be explained in more detail by way of an embodiment and with reference to the accompanying drawings, in which fig. 1 is a side view of the throttle assembly, with a pipe piece and an end cap detached from the throttle assembly; FIG. 2 shows a cross-section along the line II-II in FIG. 1, and FIG. 3 the same as in FIG. 2, but in another, viz.

lukket stilling.closed position.

Drøvleanordningens rørparti med huller 1 udgøres af flere efter hinanden liggende rørstykker 2, som delvis overlapper hinanden således, at hullerne 1 i rørstykkerne 20 2 i åben stilling ligger ud for hinanden, som vist i fig.The pipe portion of the throttle assembly with holes 1 is formed by several consecutive pipe pieces 2 which partially overlap such that the holes 1 in the pipe pieces 20 2 are in open position opposite each other, as shown in FIG.

2, og i lukket stilling ligger ved siden af hinanden, som vist i fig. 3. Rørstykkerne 2 består af to ulige store med hinanden forbundne kapperingdele, der begge har rundtgående rækker af huller 1. Rørstykkerne 2 er forsynet med et 25 begrænsningsorgan såsom en tap 3, og et tilsvarende indhak 4 i det tilstødende rørstykke tillader en bestemt, lille drejningsbevægelse mellem åben og lukket stilling. Enden af drøvleanordningen er lukket med et endedæksel 5, der også kan forbindes med en motor, der kan frembringe 30 drejningsbevægelsen til regulering af drøvlingen. Drøvleanordningen er fortrinsvis beregnet til at anbringes i et lukket rum eller en kasse, som kan fungere som tryksænkningskammer eller fordelingskammer.2, and in a closed position, side by side, as shown in FIG. 3. The pipe pieces 2 consist of two odd sized interconnecting casing parts, both of which have circumferential rows of holes 1. The pipe pieces 2 are provided with a limiting means such as a pin 3, and a corresponding notch 4 in the adjacent pipe piece allows a certain small rotary movement between open and closed position. The end of the throttle device is closed with an end cover 5 which can also be connected to a motor capable of producing the rotational movement for controlling the throttle. The throttle device is preferably intended to be placed in a closed compartment or box which can act as a pressure lowering chamber or distribution chamber.

3535

Claims

1. Piping device for pipes in a ventilation system, wherein the casing of the pipe is provided with holes which can be closed, as required, to provide throttling, known in that the part of the pipe in which the holes (1) are located is constituted by several consecutive pipe pieces (2) partially overlapping so that the holes (1) in the pipe pieces (2) are in an open position next to each other and in the closed, rotated position adjacent to each other such that the holes are closed.

Throttle device according to claim 1, characterized in that the pipe pieces (2) consist of two odd sized interconnected casing parts, both of which have circular rows of holes (1).

Throttling device according to claim 1 or 2, characterized in that the pipe pieces (2) are provided with a limiting means such as a pin or screw (3) and that a notch (4) is formed at the corresponding place in the adjacent pipe piece. or a corresponding recess which allows a certain small movement of movement between open and closed positions. 25 30 35