Spray nozzle with rotary valve shut-off and control device for liquids containing impurities, such as in spray truck operation.

Description

[0001] Spray nozzle with rotary valve shut-off and control device for liquids containing impurities, such as in Spraying truck operation The invention relates to a sprayer with a rotary flap shut-off and control device containing impurities Liquids, such as those used in explosives truck operations. In previous demonstrations of explosives production, a Rotary slide valve with its sealing surface on the surface to be sealed of the one provided with spray-like outlet openings. surrounding housing, moved sliding along. Often contained in the liquid, such as grains of sand, rust particles, or other small solid particles. Components often lead to the rotary valve seizing or to rapid wear and leakage of the shower head. Significant wear and tear occurs.

[0002] The purpose of the invention is to eliminate these problems and to create a spray nozzle with a rotary valve attachment, which also It can be used for other purposes. This is achieved by covering the sealing surface of the rotary valve with a flexible sealing plate. provided with an elastic surface, which is movably arranged on the slider in the direction of movement. The flexible The sealing plate is preferably designed as an endless strip, which can be rotated on the opposite side of the sealing plate. aib@zwdicihteniden, surface of the surrounding housing. Further details of the invention are in the following description in The connection to the drawing is explained.

[0003] The drawing schematically illustrates two embodiments of the subject matter of the invention. It shows Fig. i shows one design; form of a spring-loaded shower head - with rotary disc shut-off and control element in the central cross-section, Fig. 21 another design. Exercise form of the spray shower with rotary valve shut-off and control element as a shut-off valve with inlet and outlet nozzles in the middle cross-section.

[0004] In Fig. i, i is the Sprenigb.rausengehäulu@se with inlet nozzle 2, connection flange 4 and idiem hollow cylindrical housing part 6; which is mounted on a sub-sector of the wall has sieve-like shower openings 16. On the axis 7 of the housing part 6 is a sector-like .D:rehselvieber 8 middle> wedge or screw bolt 9 rigidly fastened.

[0005] The rotary valve 8 is provided at its mounting surface with a flexible sealing plate ii made of rubber or the like, which preferably designed as an endless band and, si!oh, when this rotary valve 8 is rotated onto the (surface to be sealed of the surrounding) Housing, 6 rolled. Ahs. Counter-bearing body for: the, sealing tape 8 are rotatably mounted on the sealing surface of the rotary valve 8. Rollers or cylinders -i2; oriented. -The return path r13 of the draining oil. ii is via a semicircular-shaped sliding track @i4. on the hub. 1.5 of the drive shaft 8 is guided. The sealing band ii can: also be arranged via one or more rotating sleeves or via the rotating axle 7. Rollers are guided. It can also be between rotary axes; 7 and. Sealing surface of the rotary slider legs or several sliding or Roll surfaces in the form of axially parallel rods, sheets, rollers or the like are provided for the return path z3 of the endless sealing strip ia. become.

[0006] Dias Md!iichtungsband zii' can be as a rubber band, fabric band with rubber or cork overlay or as a metal band with fabric or rubber padding. A winding or unwinding roller can also be used for the sealing tape ii; at the ends of the The sealing surface of the rotary valve 8 can be arranged, and both can be brought into engagement or engagement with each other. so that when the rotary valve 8 is rotated and the sealing strip ri is rolled, on the aibzurdic lumbar surface of the Rotary valve: surrounding housing, 6 the A:bdlic!htungsbandid vi- from one roll aib- and'. onto each roll is wound. It can also be sufficient if the following applies: that when using an endless sealing strip: ii idie. Return path 13 only via idie two EhdiwaIzen: or rolls of the roll-reife i;2. is guided and runs freely between these.

[0007] In the embodiment according to Fig. 2i, the spray shower housing is located at the position of the seven-barred shower openings 1b with a The outlet nozzle 3 is provided with a connection flange 5. The outlet nozzle 3 has a connection opposite the rotary valve 8. "dazw,sehemiliegeüdenDurcblaßscblitz;en für dito Flüssig Durch solche der Sprengbrause ist es :mö!glioh;diese alis Absgerr- un'd Regelventil für" Liquids of any kind can be used. Such a rotary valve can also be used for liquids or broad media. Small impurities or objects can easily become pressed into the elastic sealing strip and fall onto the return surface. again! off or - can; through, scraper removed, turn. Approximately at the point where this part is located - 6 sand particles or other granular components. the liquid is enclosed by the elastic sealing tape, without being disturbed by the movement of the sealing tape. must be moved along with it. - Wear of the rotary valve 8 or (the wall of the housing 6) does not occur. Imperfections do not occur with the elastic Abdi@chtungsibanid vi.

Claims

[0008] PATENT CLAIMS: i: Blast cleaner with Drebs-chioJiber shut-off and control element; for liquids containing impurities, as e.g. in the sprinkler wagon, characterized in that the sealing surface of the rotatable shut-off and control valve (8) milt a flexible sealing plate (ili) with an elastic surface, which extends in the direction of movement of this shut-off device (8) on this is arranged in a movable manner.

2. Spray nozzle according to claim i, characterized in that the movable sealing plate -(ii) is arranged as an endless strip, which, when the shut-off device (8) is rotated, extends onto the surface of the surrounding area opposite it. Housing: (6) rolled off.

3. Spray nozzle according to claim 2, characterized in that on the bearing surface of the Ab-;di,ehtun!gsibanides (ia) on idem idr 'evbaren. Abisperrorgan (8) rotatable or rolling Wilderl-agkörper (r2) to the back of the sealing tape (!ii) against (the The opposite surface to be sealed of the housing (6) is arranged. Spray nozzle according to claim 3, characterized in that it is as described. Rotatable counter-body elements (i2) distributed over the circumference of the shut-off device (8) are arranged rollers (iii).-- 5. Spray nozzle according to claim i or 27. ia-,by geikenn-characterized that they,by Arilbringülnig of an Ausiliaßs.tutzens@ (3) with connection.fiansch (5) or,digl. at the exit opening as a shut-off and control device for pipelines. -6. Spray head according to claim 5, characterized in that (that Idas around ,Idas shut-off device (8) housing arranged around (6) in the area of ​​the liquid outlet influenced by the shut-off device (8) at the outlet nozzle (3) with Holes, slurries, or other breaks and intervening support structures! (iiio) for the sealing tape that rolls onto them (ii) verseben. ist. _ 7. Spray nozzle according to claim 2" characterized in that for the (r3) .of the endless sealing strip there (rr) one or more sliding surfaces (r4) or roller or cylinder guides are provided on the shut-off device (8). B. Spreugbrau,se according to claim a, characterized that, the Albdiehtungsiband (rfr,) to an elastic material, such as rubber, cork or @digl. with a flexible insert or underlay from a consists of steel band, braid, metal or fabric weave, or the like.