CH681558A5 - Water supply pipe safety connection - includes fitting carrying sealing ring and incorporating locking lug or hooked lug engaging teeth on outer cap - Google Patents
Water supply pipe safety connection - includes fitting carrying sealing ring and incorporating locking lug or hooked lug engaging teeth on outer cap Download PDFInfo
- Publication number
- CH681558A5 CH681558A5 CH112891A CH112891A CH681558A5 CH 681558 A5 CH681558 A5 CH 681558A5 CH 112891 A CH112891 A CH 112891A CH 112891 A CH112891 A CH 112891A CH 681558 A5 CH681558 A5 CH 681558A5
- Authority
- CH
- Switzerland
- Prior art keywords
- fitting
- cap
- unscrewing
- indentations
- water supply
- Prior art date
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 5
- 238000007789 sealing Methods 0.000 title description 2
- 230000000295 complement effect Effects 0.000 claims description 12
- 238000007373 indentation Methods 0.000 claims description 7
- 238000005406 washing Methods 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 3
- 239000003621 irrigation water Substances 0.000 claims description 2
- 238000009428 plumbing Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on, or into, one of the joint parts
- F16L19/005—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on, or into, one of the joint parts comprising locking means for the threaded member
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Protection Of Pipes Against Damage, Friction, And Corrosion (AREA)
Abstract
Description
1 1
CH 681 558 A5 CH 681 558 A5
2 2
Descrizione Description
La presente invenzione ha per oggetto un raccordo di sicurezza per tubazioni idrauliche in genere e in particolare per quelle destinate all'allacciamento a lavatrici, lavastoviglie, reti idriche di irrigazione, connessioni idrauliche, onde evitare perdite d'acqua o di liquido causate dall'allentamento delle parti componenti il raccordo, per effetto delle vibrazioni e dell'essiccamento delle garnizioni. The present invention relates to a safety fitting for hydraulic pipes in general and in particular for those intended for connection to washing machines, dishwashers, irrigation water networks, hydraulic connections, in order to avoid water or liquid leaks caused by loosening of the parts making up the fitting, due to the vibrations and the drying of the seals.
I raccordi attuali, ad esempio quelli destinati all'allacciamento a lavatrici e lastoviglie, comprendono generalmente un cappellotto esagonale filettato internamente avvitato sul tubo in arrivo dell'acqua e una parte tubolare complementare a forma di fungo, disposta in modo che avvitando a fondo il cappellotto la parte complementare comprima fortemente la guarnizione piana interposta. The current fittings, for example those intended for connection to washing machines and dishwashers, generally include an internally threaded hexagonal cap screwed onto the incoming water pipe and a complementary mushroom-shaped tubular part, arranged so that by screwing the cap fully the complementary part strongly compresses the interposed flat gasket.
A lungo andare, sia per l'essiccamento della guarnizione piana interposta nei periodi di inattività, che per l'allentamento del cappellotto dovuto alle vibrazioni proprie delle lavatrici o lavastoviglie, si possono verificare delle perdite di liquido anche notevoli, il che non è tollerato specialmente nel caso proprio delle lavatrici e lavastoviglie che sono generalmente situate negli ambienti domestici. In the long run, both for the drying of the flat seal interposed in periods of inactivity, and for the loosening of the cap due to the vibrations of the washing machines or dishwashers, there may also be significant losses of liquid, which is not tolerated especially in the case of washing machines and dishwashers which are generally located in domestic environments.
Questo inconveniente è completamente evitato col raccordo di sicurezza secondo la presente invenzione, caratterizzato da ciò che fra l'estremità di un condotto (A, fig. 7) da raccordare e le parti complementari (A e 1- fig. 7, rispettivamente 4 e 8) awitantisi su detta estremità della tubazione sono montati mezzi antisvitamento, guarnizioni toroidali collaborando con l'estremità del condotto e le parti complementari. This drawback is completely avoided with the safety fitting according to the present invention, characterized by that between the end of a conduit (A, fig. 7) to be connected and the complementary parts (A and 1- fig. 7, respectively 4 and 8) anti-unscrewing means, toroidal gaskets are mounted on said end of the pipe, collaborating with the end of the duct and the complementary parts.
I disegni allegati rappresentano alcune preferite forme, non limitative né vincolative di realizzazione dell'invenzione. The enclosed drawings represent some preferred forms, not limiting nor binding of embodiment of the invention.
- la fig. 1a rappresenta, in sezione assiale, una prima forma di realizzazione del cappellotto secondo la presente invenzione; - fig. 1a represents, in axial section, a first embodiment of the cap according to the present invention;
- la fig. 1b ne rappresenta la vista in pianta dall'alto; - fig. 1b represents its top plan view;
- la fig. 1c la vista in pianta dal basso; - fig. 1c the plan view from below;
- le figg. 2a, 2b, 2c rappresentano una seconda forma di realizzazione del cappellotto secondo l'invenzione; - the figs. 2a, 2b, 2c represent a second embodiment of the cap according to the invention;
- le figg. 3a, 3b, 3c una terza forma di realizzazione del cappellotto secondo l'invenzione; - the figs. 3a, 3b, 3c a third embodiment of the cap according to the invention;
- le figg. 4a, 4b, 4c, 4d rappresentano in sezione assiale e nelle varie viste una particolare forma di realizzazione, secondo l'invenzione, della parte rettilinea, del raccordo che si avvita sulla tubazione che fa capo alla lavatrice, lavastoviglie ecc.; - the figs. 4a, 4b, 4c, 4d represent in axial section and in the various views a particular embodiment, according to the invention, of the rectilinear part, of the fitting which is screwed onto the pipe which belongs to the washing machine, dishwasher, etc .;
- le figg. 5a, 5b, 5c, 5d rappresentano una forma curvilinea del raccordo; - the figs. 5a, 5b, 5c, 5d represent a curvilinear shape of the fitting;
- le figg. 6a, 6b, 6c rappresentano una diversa forma di realizzazione del raccordo in oggetto; - the figs. 6a, 6b, 6c represent a different embodiment of the fitting in question;
- la fig. 7 rappresenta in sezione assiale il raccordo completo secondo l'invenzione, collegato al condotto d'arrivo (A) e a quello di partenza (P). - fig. 7 shows in axial section the complete fitting according to the invention, connected to the arrival duct (A) and the departure duct (P).
Con riferimento alle figg. 1a, 1b, 1c, il cappellotto 1, realizzabile in metallo o materia plastica è esternamente realizzato in forma di dado o presentante sporgenze o zigrinature in modo da poterlo avvitare tramite una chiave sul condotto in arrivo A (fig. 7). Superiormente detto cappellotto presenta delle dentellature o meglio delle seghettature 2 antisvitamento, sporgenti in modo che incontrando la superficie del pezzo complementare su cui premono, oppure un organo di fermo (5' fig. 5a e fig. 7) impediscano lo svitamento reciproco anche in caso di forti vibrazioni. With reference to figs. 1a, 1b, 1c, the cap 1, which can be made of metal or plastic, is externally made in the form of a nut or having protrusions or knurls so as to be able to screw it with a key on the incoming duct A (fig. 7). Above said cap has indentations or, better, anti-unscrewing serrations 2, protruding so that meeting the surface of the complementary piece on which they press, or a stop member (5 'fig. 5a and fig. 7) prevent mutual unscrewing even in case of strong vibrations.
Per evitare poi gli inconvenienti presentati dalle attuali guarnizioni piane, soggette ad essiccamento e quindi ad un ritiro durante i lunghi periodi di inattività, con conseguente allentamento delle due parti del raccordo (1 e 4 oppure 1 e 5), secondo l'invenzione si prevede l'uso di una guarnizione elastica toroidale cioè anulare di sezione circolare 6 (figg. 5a, 6a) che mantiene costantemente la tenuta anche se le varie parti dovessero allentarsi. To avoid the inconveniences presented by current flat gaskets, which are subject to drying and therefore to withdrawal during long periods of inactivity, with consequent loosening of the two parts of the fitting (1 and 4 or 1 and 5), according to the invention the use of a circular toroidal or circular annular elastic gasket 6 (figs. 5a, 6a) which constantly maintains the seal even if the various parts become loose.
Si ottiene in questo modo la totalità della sicurezza di tenuta del raccordo anche per lunghissimi periodi di esercizio. In this way, all the sealing safety of the fitting is obtained even for very long periods of operation.
Dei dentelli supplemetari 2' (figg. 1 b, 2b, 3b) possono eventualmente collaborare con la superficie cilindrica interna 4" (fig. 5a) per ottenere lo stesso effetto delle dentellature superficiali sporgenti 2 (fig. 1a) o incassate 2 (fig. 2a). Additional teeth 2 '(figs. 1 b, 2b, 3b) can possibly collaborate with the internal cylindrical surface 4 "(fig. 5a) to obtain the same effect as the protruding surface indentations 2 (fig. 1a) or recessed 2 (fig . 2a).
Nelle figg. 6a, 6b, 6c, 6d è rappresentata una variante secondo la quale il mezzo antisvitamento è costituito da una molla a lamina 7 piegata in modo da consentire l'avvitamento delle due parti complementari, ma non lo svitamento. In Figs. 6a, 6b, 6c, 6d represents a variant according to which the anti-unscrewing means is constituted by a leaf spring 7 bent so as to allow the two complementary parts to be screwed, but not unscrewed.
E' previsto che la forma delle varie parti componenti il raccordo e quella delle dentellature possano variare ed essere comunque collocate, senza uscire dall'ambito di protezione del brevetto. It is envisaged that the shape of the various parts making up the fitting and that of the indentations may vary and in any case be located, without departing from the scope of protection of the patent.
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH112891A CH681558A5 (en) | 1991-04-16 | 1991-04-16 | Water supply pipe safety connection - includes fitting carrying sealing ring and incorporating locking lug or hooked lug engaging teeth on outer cap |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH112891A CH681558A5 (en) | 1991-04-16 | 1991-04-16 | Water supply pipe safety connection - includes fitting carrying sealing ring and incorporating locking lug or hooked lug engaging teeth on outer cap |
Publications (1)
Publication Number | Publication Date |
---|---|
CH681558A5 true CH681558A5 (en) | 1993-04-15 |
Family
ID=4203147
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH112891A CH681558A5 (en) | 1991-04-16 | 1991-04-16 | Water supply pipe safety connection - includes fitting carrying sealing ring and incorporating locking lug or hooked lug engaging teeth on outer cap |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH681558A5 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1996008669A1 (en) * | 1994-09-12 | 1996-03-21 | Alfred Kärcher GmbH & Co. | Connector piece for the hose coupling of high-pressure cleaning equipment |
WO1996008688A1 (en) * | 1994-09-13 | 1996-03-21 | State Of Israel - Ministry Of Defence Rafael - Armament Development Authority | System and method for hitting a target in a cluster |
-
1991
- 1991-04-16 CH CH112891A patent/CH681558A5/en not_active IP Right Cessation
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1996008669A1 (en) * | 1994-09-12 | 1996-03-21 | Alfred Kärcher GmbH & Co. | Connector piece for the hose coupling of high-pressure cleaning equipment |
US5788292A (en) * | 1994-09-12 | 1998-08-04 | Alfred Karcher Gmbh & Co. | Connector for the pipe coupling of a high-pressure cleaning apparatus |
WO1996008688A1 (en) * | 1994-09-13 | 1996-03-21 | State Of Israel - Ministry Of Defence Rafael - Armament Development Authority | System and method for hitting a target in a cluster |
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PL | Patent ceased | ||
PL | Patent ceased |