DE1951771U - CONNECTOR FOR TWO PRESSURE PIPES WITH AT LEAST ONE CONTROL PIPE. - Google Patents

Description

_fi ■ 'RA. 587177 * 10.11.66

Stuttgart - Untertürkheim 'November 8, 1966

^Ji connecting element for two pressure lines with at least one control line ^t! . ■ ".

"Hiring" relates to a connecting organ for two optional pressurized οd, he relieved 'pressure lines with at least one of the working elements., actuators or the like. leading control line., especially for the control hydraulic actuation of fresh air flaps or the same with electric vehicles? the lines in the housing are arranged in the manner of a! -Piece and with at the ends one of the [D-crossbeams forming a recess each have a pressure line and at the bottom of a recess forming the Ε-bar the Control line connected and within the 'l' crossbar recess a valve closure body arranged displaceably is. ■ '- ■. ■

If, for example, a working element is operated jointly by two hydraulic switches - to which other working elements are connected separately - the pressure lines coming from the switches are partially combined. with the control line leading to the relevant work element in a connecting element ₅ z, B; in the manner of a. I ¹ «piece, but there is a risk _? that the hydraulic fluid coming from a switch does not flow through the control line to the working element, but rather through the other-like two end divisions ~ a pressure and a relief position - would this always mean pressing both switches at the same time to put the working element into operation? but what about the further

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work elements still connected .unwanted or impossible is «Even with switches with three positions, with a neutral means in addition to the two above position is added? would have to operate one switch always make sure that the other switch is in the middle position.

To ensure smooth operation of the work elements, A considerable amount of expertise and concentration must be required. Such requirements must be met will prove unreasonable in most cases, a frequent failure of the hydraulically operated working elements, ■ such as fresh air flaps or the like. be the poIge. the Innovation has therefore set itself the task of »those described above To avoid disadvantages, to combine the operation and an independent actuation of the work elements from each of the two switches to enable

It solves this problem in that the T-crossbar recess | of a larger diameter in the housing with transition points that serve as valve seats and which are conical with comparatively obtuse cone angle are formed on a smaller diameter in the housing and that the Cylindrical valve closure body with a truncated cone or a truncated cone shaped tapered ends, -wherein the cone angle of the ends is smaller than the cone angle of the Valve seats is.

Is now -. Set by operating a Schalters.- a conduit under pressure, as is done by the ^r fQ.uerbalken ~ in recess flowing "liquid displacement of the valve closure body and a pressing-the same at the opposite valve seat" As a result, the other Pressure line closed automatically? And no pressure medium can flow out;

"of both switches is the. Ventilversohlußkörper by the equal pressure on both sides in equilibrium, i.e. in his Maintained middle position and the line pressure can propagate from both pressure lines into the control line »

The above-mentioned conical design -of the valve seat and the valve insulator according to the furnace turns out to be as particularly useful, free from possible wear of the valve seat., in this case, the valve closure body only needs to move slightly to the previous one restore tight seal »Furthermore, the conical Training the. both cooperating parts to 3? Tting of the somewhat eccentric when the pressure lines are relieved lying to the valve seat at the bottom of the T-crossbar recess Valve closure body in the valve seat,

In a known connecting organ of a similar type \? Ird namely the valve closure body - in the. special sealing cushions are used - by means of square guide cams guided in the housing recess, this results in an unnecessary Friction <, In addition, it allows the pressure medium to pass through with special needs. ■ -

In the case of training after hiring, on the other hand, the valve closure body is when a pressure line is actuated, it is raised slightly by the hydraulic fluid and slips on both of them Conical surfaces in the valve seat. To improve the guiding of the Ventilversohlußkkörperere in the valve seat or »to avoid it a one-sided friction of the two conical surfaces in the above-mentioned guide process, suggests the Innovation before, that the frustoconical ends of the valve closure body - with a Durohmesser corresponding to the smaller cone diameter -. in cylindrical tenons continue by means of which the Ventilversohlußkörper in the tighter ropes of the T-crossbar recess and is centered »

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In all above-described embodiments, the housing of the connecting organ may be of multi-part "Ii proposes ¹ Ur this Pail the Heuerung-front ', · that the housing consists of two! Peilen, wherein one part coaxial with the I-transom recess in the other housing part is "screwed in" and contains a "valve seat with an adjoining narrower T-crossbar recess part as well as a: i) pipe connection, while the other housing part accommodates the other valve seat with pressure connection and the control line connection. The goal of this embodiment lies in the fact that the housing is quickly divided into two parts without longitudinal division of the recess and the associated sealing or framing difficulties.

In the drawing, an embodiment of the invention is shown, namely shows ■ ■

Pig. 11 a connecting member in section,

' ⁿ 2 an application of a connection »; ^; organes. .

Like from Pig. " 1, two cylindrical recesses 14, 15 forming a QJ are arranged in a housing 12 of the connecting element 15 consisting of two wedges 10, 11 10 fixed ■ screwed. Both recesses 14, 15 are set off several times. The extensions lying in the housing 12 outside 17 of the recesses 14, serve to connect in Pig, 2: pressure lines shown: 19 and 20 and the extension 18 of the ^r I-web-recess 15 is 21 for connecting a control line provided . ■

The! - "crossbar recess 14 also points at the point of the mouth the "Ü-web recess 15 an extension 22: on, wherein

the transition points 23,24 conical with comparatively are formed obtuse cone angle and serve as "valve seats. Inside the 'enlargement 22 is a substantially cylindrical Ventilversohlußkörper 25 arranged displaceably. Br has a smaller durometer than the extension 22 · Seine. Ends- 26.2? are frustoconical, however formed with a smaller cone angle than the valve seats 23-24 and set in cylindrical pins 28 and 29, respectively away. The valve closure body 25 is connected to the pin 28, 29 out in the T-. Crossbar recess 14 and opposite the · Centered valve seats 23,24.

In Pig »2 the 'application of the connecting member 13 in a hydraulic system for the actuation of hairdressing air flaps 30,31,32, an air flap 33 ^! and a distributor flap 34 shown in a motor vehicle. It is not the flaps themselves that are shown, but the relevant working elements, ie hydraulic pressure pistons in this Pail.

The front air flaps 30,31 as well as the air circulation flap 33 and the distributor flap 34 are actuated by a switch 35? which is connected to a not shown pressure source and ^-. which ^S relief ^fi on ^{i pressure "and is switchable The front fresh air flaps 30,31 can v ^ ground also by a aweiten container 36 is actuated, which in its design the above- and which also actuates the rear hairdressing air flap 32. Since the two front air flaps 30,31 are to be actuated at the same time, they are fed by a later branching control line 21 into which the pressure lines 19, coming from the switches 35,36 20. In order to bring about the independent actuation of the front frisal air flaps 30, 31, already described above, from each of the two switches 35936, the connecting element 13 according to the invention is arranged at the junction of the two pressure lines 19-20 with the control line 21.

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When the front / air flaps 30 _?: 31 are actuated by the switch 35 and the switch 36 relieved, the valve closure element 25 is pressed into the valve seat 24 by the pressure of the pressure line 19 - see fig, 1 '' and thus prevents the pressure fluid from penetrating into the valve seat The relieved pressure line 2Q, the pressure medium is now forced to take its prescribed route via the control line 21 to the fresh air flaps 30 * 31 operation described above in reverse., d, h>. SerVentilversohlußkörper 25 · is now _{pressed into the valve seat -23:} and accordingly blocks the pressure line 19 _# When the prischluftklappen 3O-j31 are operated by both switches 35 and 36, the valve closure body 25 is due to "the same line pressure on both sides in the middle of the extension 22 kept in equilibrium.,. and the pressure from the two pressure lines 19, 20 can propagate into the control line 21. «■ .. '■' ■■ '■ - .... ■■: ■; ■

Claims (1)

587.177 * 1.0; 1UB. 1; "Connection element for two optional, pressurized or relieved pressure lines with at least one to the working elements ;, actuators or the like. leading control line., especially for the. Control of a hydraulic actuation of 3? end of the [E-web recess forming the control line is connected and a valve closure member slidably disposed within the T-crossbar ^ _recess? characterized ;, that the ^r X 'cross bar recess (14) of a larger diameter in the housing with crossing points ,, which serve as valve seats (23s24) and which are conical with a comparatively obtuse cone angle »merge to a smaller diameter in the housing ?) is formed _? where the cone angle. of the ends is smaller than the cone angle of the valve seats (23, .24), Connecting member according to claim 1, characterized in that the frustoconical ends (26 _27?) Of the valve closure body (2 | 5) see - with the smaller conical diameter corresponding diameter - in.zylindrischen pins continue, by means of which the valve closure body. (28 _29?) (25) is guided and centered in the narrower ropes of the I-crossbar 'recess, 3ο connecting member according to claim 1 or 2 ₅ and wherein the housing is constructed in several parts ',' characterized _? that the housing (12) of di- rush '! bestehtj _(10? 11) where a Daijn. β 5 67. "a / 4 'feil (-11) coaxial to the [O-crossbar recess (H) in the other housing part (10) is screwed in and a valve seat (24) with a subsequent narrower! T-Cross bar recess part as well as a pressure line connection (17), while the other housing part (10) contains the other Valve seat (23) with Druok connection (17) and the control room connection (18) takes up » Diast ÜniBffftQfr (Besclweioumj unö iohimcm «!»,) K \ <Jt « <nimt \ « irtgstsionia, w ttmom ton dar , Kin Unlsdogon böl1n <ien «lefi I« i © ti AiwteeWoiV SI k * * open