DE1609044C3 - Air mixing device for an extendable swivel arm - Google Patents

Description

with at the end of the smaller section (113 a) the air mixing device with the stepped bushing

arranged projections in one over the according to the invention has the decisive advantage

outer circumference of the connecting pipe (10) that with the help of the connecting means on the section small

elongating groove (27) on the outlet-side smaller diameter an easy and effortless feathering (10 a) of the connecting pipe (10) is attached. 45 increase on the connecting pipe

4. Air admixing device according to claim 3, whereas the portion larger through it marked that the smaller dimension at the same time for perfect guidance for the Section (113 a) through axially extending overflow pipe is used.

Subareas of the smaller section (113a) are further developments of the invention are counter-extending slots (24) in ring segment-like 50 according to claims 2 to 6.
Spring tongues (25) is divided. The drawings show two examples

5. Luftbeimischvorrichtung according to claim4, play the E-.rfindungsgegenslandcs reproduced; characterized in that it shows on the insides

the spring tongues (25) each one according to the interior Fig. I an extendable swivel arm in one

the bushing directed annular bead (26) arranged 55 view, the area of the Luftbcimischvorrichist, which engages positively in the groove (27). tion is reproduced in the cut,

6. Air admixing device according to one of FIGS. 2 an embodiment of the air mixing-claims 4 to 6, characterized in that the device on an enlarged scale, the one at the free end of the spring tongues (25) are drawn radially to individual parts axially next to one another,
outwardly protruding against the inner surface 60 F i g. 3 one of the F i g. 2 corresponding representation of the outlet pipe (11) supporting strips with a different embodiment of the Luftbei- (29) are arranged. mixing device,

F i g. 4 the air admixing device according to FIG. 3 in

assembled condition, also in the axle

65 section shown on an enlarged scale,

F i g. 5 is a partial representation of the front view of the invention relates to an air admixture- Fig.4.
device for an extendable swivel arm, the When the pull-out swivel arm is an axial

I 609

immovable, however; n his gtJ

pivotable connecting pipe IO provided on the axially movable and Hm its longitudinal axis an AMSlsufrohr 51 is rotatably mounted. Connecting pipe IO and outlet pipe H are through a union nut 12 and 22 coupled together, the supports itself on the connection pipe side and reads the outlet pipe Il overlaps

In the exemplary embodiment according to FIGS. 1 and 2, the air mixing device is designed as a stepped sleeve made of metal, with the smaller diameter section 13 α being provided with internal thread 14 over parts of its axial length and being screwed onto an annular plug 15 which is firmly in the mouth 10a of the connecting pipe 10 sits. The larger diameter section 13 of the stepped bushings 13, 13a serves as a guide for the outlet pipe 11. Inside the stepped bushing there are an impact sieve 16 and a sieve arrangement 17 at a distance from one another. The space between these sieves is the mixing chamber 18 and has air access openings 19 in the jacket of the smaller section 13 a. The sieves are held in the step bushing by means of circlips 20 and 21.

On the circumference of the connecting pipe 10, an elastic ring 23 is provided inside a union nut 22, the cross section of which is cut out on the inside facing the pipe by axial grooves through which the air axially outside the ring plug IS through the openings 19 of the stepped bushing to the mixing chamber 18 Water "flows _Κί , ηη The union nut 22 covers the end! Ie of the outlet pipe" which has an external thread and thus holds the connection pipe 10 and outlet

run ^l 'together. .

In the execution example according to Hg 3 up to 5 it is a stepped bushing made of classic «Heni material, e.g. B, made of plastic. In this study S the smaller diameter section N3 «through axial slots 24 in spring tongues 25 -ufueleill Bandet at the free end of these spring tongues Se etae radially inwardly directed rim 26, which cooperate as locking projections with a groove 27 m in the outer surface of the connecting pipe IC, in such a way that these R.ngwulstc 26 snap into the groove 27 with a force fit. This step rifle can thus be held aul of the connecting pipe 10 by axially bursting open

A baffle screen 116 forms with the stepped bushing emc one-story unit, while a screen assembly 117 is formed by two mixing screens, which m Unifangsnuten 28 are sprinkled in the area between the impact screen H6 and the Sicbanordnui) « 117 is the mixing chamber 18 again

As can be seen in particular from FIG. 5, on the outside of the spring tongues 25 support strips 2 "are located, which are supported on the inner circumference of the outlet roh res 11, so that a possible spreading of the spring tongues 2? is prevented, because these find abutments via the socket bars J> on the inner surface of the outlet pipe II cm.

1 sheet of drawings

Claims (3)

Pin on an Iw ^ üj ^^ ** ^^ Patent claims: scnlußrahr and an Ausli mounted on the sliding book 1. Air mixing device for a pull-out socket, which is attached to the 3UsIaUfSeUIgCn ₁
able swivel arm, which is arranged on a nozzle 5 schJußrohrcs
pivoted connection pipe and a mixer with a ν
This rotatable and longitudinally displaceable supported distance axially to the impact body ai Having outlet pipe, with a bushing of order and with a ^zwiscnc _{lllrill "URT."; -. Rf} ausiaufseiUgen the mouth of the connecting pipe and the screen arrangement is located, and the luhzurluwiiangeordnct w as Luftbeimischvorrich- voltages having mixing chamber ausgeDiiuetisi
lung with an impact body, with a distance in the case of such ^{Luflbctmisch. vo} / " ^c _n ^ ', Siebanord- arranged axially to the impact body has become known through prior public use and with a between the impact body i _Si , the socket is within the ausiaul _is . and the opening of the outlet pipe, which is open to the air inlet, and the mixing chamber with fastening openings is formed. It is also disadvantageous, uaij in socket as a stepped socket with an externally fully extended position of the Auslautronrs oieses larger diameter section (13, 113) and only on a short piece of the connector with connecting means (14, 26) for fastening is. 20 The invention is based on the Autgaix outer diameter smaller section (13 a, one at the end of the connection tube at 113 a), so that the larger section is arranged in the air mixing device in uetracu (13, 113) to be designed and arranged in a way that is to be drawn in accordance with the clearance of the outlet pipe. (11) has a corresponding outer diameter that it can be easily attached to the connecting pipe of the -Schwenkar and via the outlet end of the connecting 25 mes and at the same time a hui; innres (10) protruding as a guide for the ring for easier removal. Auslaufrohrjs outlet pipe (11) is formed and that the small swivel arm ensures
ncrc section (13 a, 113 a) on the scope This task is solved. Distributed radial openings (29) through which the socket can be used as a Slufcnbüchsc groove in the has access to air. 30 outer diameter larger section and one 2. Luftbeimischvorrichtung according to claim 1, with connection means for attachment to the connection, characterized in that we socket is provided from me- pipe, in the outer diameter ^k ' ^emeren tall and is formed at its smaller section section that the larger section (13 a) a Thread (14) for screwing onto one of the clearance of the outlet pipe correspond to one fixed with the outlet-side mouth (10 a) 35 has the outer diameter and protrudes beyond the ring stop-side end of the connecting pipe (15) connected to the connecting pipe (10). is designed as a guide for the outlet pipe and 3. Luftbeimischvorrichtung according to claim 1, that the smaller portion distributed over ^ n circumference characterized in that the socket is arranged from radial openings for the access of consists of an elastically resilient plastic and 40 has air.