ITRE970027U1 - SPRAY GUN WITH QUICK COUPLING - Google Patents

SPRAY GUN WITH QUICK COUPLING Download PDF

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Publication number
ITRE970027U1
ITRE970027U1 IT97RE000027U ITRE970027U ITRE970027U1 IT RE970027 U1 ITRE970027 U1 IT RE970027U1 IT 97RE000027 U IT97RE000027 U IT 97RE000027U IT RE970027 U ITRE970027 U IT RE970027U IT RE970027 U1 ITRE970027 U1 IT RE970027U1
Authority
IT
Italy
Prior art keywords
spray gun
gun
flexible tube
dispensing valve
quick coupling
Prior art date
Application number
IT97RE000027U
Other languages
Italian (it)
Inventor
Giuseppe Arsi
Original Assignee
Interpump Group S P A
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Interpump Group S P A filed Critical Interpump Group S P A
Priority to IT1997RE000027U priority Critical patent/IT238406Y1/en
Priority to EP97202634A priority patent/EP0885661A3/en
Priority to DE29716004U priority patent/DE29716004U1/en
Publication of ITRE970027U1 publication Critical patent/ITRE970027U1/en
Application granted granted Critical
Publication of IT238406Y1 publication Critical patent/IT238406Y1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/30—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
    • B05B1/3033—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head
    • B05B1/304—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head the controlling element being a lift valve
    • B05B1/3046—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head the controlling element being a lift valve the valve element, e.g. a needle, co-operating with a valve seat located downstream of the valve element and its actuating means, generally in the proximity of the outlet orifice
    • B05B1/3066—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head the controlling element being a lift valve the valve element, e.g. a needle, co-operating with a valve seat located downstream of the valve element and its actuating means, generally in the proximity of the outlet orifice the valve element being at least partially hollow and liquid passing through it when the valve is opened
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
    • B05B12/002—Manually-actuated controlling means, e.g. push buttons, levers or triggers
    • B05B12/0022—Manually-actuated controlling means, e.g. push buttons, levers or triggers associated with means for restricting their movement
    • B05B12/0024—Manually-actuated controlling means, e.g. push buttons, levers or triggers associated with means for restricting their movement to a single position
    • B05B12/0026—Manually-actuated controlling means, e.g. push buttons, levers or triggers associated with means for restricting their movement to a single position to inhibit delivery
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/30—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
    • B05B1/3033—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head
    • B05B1/304—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head the controlling element being a lift valve
    • B05B1/3046—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head the controlling element being a lift valve the valve element, e.g. a needle, co-operating with a valve seat located downstream of the valve element and its actuating means, generally in the proximity of the outlet orifice
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
    • B05B9/01—Spray pistols, discharge devices

Landscapes

  • Nozzles (AREA)
  • Coating Apparatus (AREA)

Description

DESCRIZIONE DESCRIPTION

di Modello di Utilità dal Titolo : "PISTOLA SPRUZZATRICE CON INNESTO RAPIDO", of Utility Model entitled: "SPRAY GUN WITH QUICK COUPLING",

La presente invenzione concerne le pistole spruzzatrici per idropulitrici. The present invention relates to spray guns for high pressure cleaners.

Le pistole di questo tipo servono per effettuare l'erogazione di acqua in pressione e sono collegate alla idropulitrice mediante un tubo flessibile di alimentazione. Questo tipo di pistola è in generale costituito da due semigusci in materiale plastico provvisti di opportune sedi in cui è collocato un corpo valvola dotato di una sede di valvola con cui agisce l'otturatore, che è comandato dall'operatore ad erogare il fluido in pressione mediante un'apposita leva. The guns of this type are used to deliver water under pressure and are connected to the pressure washer by means of a flexible supply hose. This type of gun generally consists of two half-shells in plastic material provided with suitable seats in which a valve body equipped with a valve seat with which the shutter acts, which is controlled by the operator to deliver the fluid under pressure, is placed. by means of a special lever.

I condotti di alimentazione e mandata della valvola sono rispettivamente connessi ad un tubo flessibile di alimentazione, e ad un ugello erogatore, o anche ad una lancia erogatrice. The supply and delivery pipes of the valve are respectively connected to a flexible supply pipe, and to a dispensing nozzle, or also to a dispensing lance.

In particolare la connessione tra il corpo valvola ed il tubo flessibile viene realizzata utilizzando un manicotto filettato, un'estremità del quale viene avvitata nel condotto di alimentazione filettato del corpo valvola, mentre sull'altra estremità si avvita il raccordo metallico rigido di cui è provvisto il tubo flessibile. In particular, the connection between the valve body and the flexible pipe is made using a threaded sleeve, one end of which is screwed into the threaded supply duct of the valve body, while the rigid metal fitting with which it is provided is screwed on the other end. the hose.

Questo tipo di connessione non permette al tubo flessibile di ruotare attorno al proprio asse longitudinale e ciò può essere causa di inconvenienti in quanto, durante l'utilizzo della idropulitrice, esso potrebbe avvolgersi su sé stesso danneggiandosi o comunque esercitando un momento torcente sulla pistola, che deve essere contrastato dall'operatore. This type of connection does not allow the flexible hose to rotate around its longitudinal axis and this can cause problems as, during the use of the pressure washer, it could roll up on itself, damaging itself or in any case exerting a twisting moment on the gun, which must be opposed by the operator.

Per superare questi inconvenienti sono note delle pistole spruzzatrici in cui la connessione tra il corpo valvola ed il tubo flessibile si realizza con un manicotto doppio a tenuta che è innestato nel condotto di alimentazione del corpo valvola della pistola ed in cui si innesta il raccordo metallico del tubo flessibile ad alta pressione. Per evitare che durante il funzionamento, a causa delle forti pressioni cui è soggetto, il tubo flessibile si sfili dal manicotto e per permettere allo stesso di ruotare attorno al proprio asse, talvolta si realizza un allargamento della parte terminale del raccordo metallico del tubo flessibile la quale è appoggiata ad un cuscinetto reggispinta che, a sua volta, è sostenuto da una apposita sede del guscio esterno. To overcome these drawbacks, spray guns are known in which the connection between the valve body and the flexible hose is made with a double sealed sleeve which is inserted into the supply duct of the valve body of the gun and into which the metal fitting of the valve is inserted. high pressure hose. To avoid that during operation, due to the strong pressures to which it is subject, the flexible hose comes off the coupling and to allow it to rotate around its own axis, sometimes the terminal part of the metal fitting of the flexible hose is widened. which is supported by a thrust bearing which, in turn, is supported by a special seat in the outer shell.

Questo tipo di connessione è di complessa realizzazione, inoltre non elimina l'inconveniente che per sostituire il tubo flessibile è necessario aprire il guscio esterno della pistola e smontare parte degli elementi in esso contenuti. This type of connection is complex to make, moreover it does not eliminate the drawback that to replace the flexible hose it is necessary to open the outer shell of the gun and remove part of the elements contained therein.

Lo scopo del trovato è quello di superare i lamentati inconvenienti, rendendo disponibile una pistola spruzzatrice che permetta di innestare il tubo flessibile nella pistola spruzzatrice senza dovere aprire il guscio della stessa nell'ambito di una realizzazione semplice, pratica e sicura per quanto riguarda la tenuta tra le parti interessate. The object of the invention is to overcome the aforementioned drawbacks, by making available a spray gun which allows the flexible hose to be inserted into the spray gun without having to open the shell thereof in the context of a simple, practical and safe construction as regards the seal. between interested parties.

Detto scopo è ottenuto dal trovato grazie alle caratteristiche recitate nelle rivendicazioni. Said object is achieved by the invention thanks to the characteristics recited in the claims.

Al fine di meglio chiarire le caratteristiche funzionali e costruttive del trovato se ne descrive nel seguito una preferita forma di attuazione data a titolo di esempio non limitativo ed illustrata nelle allegate tavole disegni. In order to better clarify the functional and constructive characteristics of the invention, a preferred embodiment is described below, given by way of non-limiting example and illustrated in the attached drawing tables.

La Fig.l rappresenta una sezione laterale del trovato . Fig. 1 represents a lateral section of the invention.

La Fig.2 rappresenta la sezione II-II di Fig .2. La Fig. 3 rappresenta una vista di assieme del trovato . Fig. 2 represents the section II-II of Fig .2. Fig. 3 represents an overall view of the invention.

La Fig.l mostra uno dei due semigusci 1, ognuno dei quali è dotato di opportune sedi atte a ricevere i mezzi di conduzione del liquido in pressione ed a bloccare gli stessi quando i due semigusci sono chiusi e fissati mediante viti. Fig. 1 shows one of the two half-shells 1, each of which is equipped with suitable seats suitable for receiving the means for conducting the liquid under pressure and for locking them when the two half-shells are closed and fixed by screws.

In particolare nella figura sono mostrati un elemento di raccordo 2 con una eventuale lancia erogatrice esterna, il quale si innesta in un doppio manicotto a bicchiere 3, la cui altra estremità è la sede di valvola dell'otturatore 4. In particular, the figure shows a connecting element 2 with a possible external dispensing lance, which engages in a double cup sleeve 3, the other end of which is the valve seat of the shutter 4.

L'otturatore 4 è comandato ad erogare il fluido in pressione mediante la leva 5 . The shutter 4 is controlled to deliver the pressurized fluid by means of the lever 5.

Il liquido in pressione viene alimentato nell'otturatore 4 attraverso il tubo sagomato 6, in materiale plastico, il quale presenta due estremità a bicchiere, in una delle quali è innestato l'otturatore 4, mentre nell'altra si innesta un'estremità del manicotto doppio a tenuta 7. The pressurized liquid is fed into the shutter 4 through the shaped tube 6, made of plastic material, which has two cup-shaped ends, in one of which the shutter 4 is inserted, while in the other an end of the sleeve is inserted. double sealed 7.

Nell'altra estremità del manicotto doppio a tenuta 7 si innesta il raccordo metallico 8 del tubo flessibile 9 ad alta pressione. Il raccordo metallico 8 è a sezione cilindrica e presenta una scanalatura intermedia atta a ricevere il fermo 10. The metal fitting 8 of the high pressure hose 9 is inserted into the other end of the double sealed sleeve 7. The metal fitting 8 has a cylindrical section and has an intermediate groove adapted to receive the stop 10.

Il fermo 10 è conformato a forcella (si veda Fig .2) e costituisce un vincolo per il raccordo metallico 8 del tubo flessibile 9 tale da impedirne i movimenti longitudinali ma non ne impedisce le rotazioni . The stop 10 is fork-shaped (see Fig. *** 2) and constitutes a constraint for the metal fitting 8 of the flexible tube 9 such as to prevent its longitudinal movements but does not prevent its rotations.

Il fermo 10 ha quindi la funzione di evitare che il raccordo metallico 8 si sfili dal manicotto doppio a tenuta 7, a causa delle forti pressioni in gioco durante il funzionamento della idropulitrice, ma non impedisce le rotazioni del tubo flessibile 9 ad alta pressione evitando in questo modo attorcigliamenti indesiderati del tubo flessibile ad alta pressione. The stop 10 therefore has the function of preventing the metal fitting 8 from slipping out of the double sealed sleeve 7, due to the high pressures involved during the operation of the pressure washer, but does not prevent the high pressure hose 9 from rotating. this causes unwanted kinking of the high pressure hose.

Come si vede dalla figura 3 per inserire il tubo flessibile 9 nella pistola spruzzatrice è sufficiente rimuovere il fermo 10 dalla feritoia 11 ricavata in uno dei due semigusci 1 della pistola spruzzatrice, ed innestare nel manicotto doppio a tenuta 7, contenuto all'interno della pistola stessa, il raccordo metallico 8 del tubo flessibile 9. As can be seen from figure 3, to insert the flexible hose 9 into the spray gun it is sufficient to remove the stop 10 from the slot 11 obtained in one of the two half-shells 1 of the spray gun, and insert it into the double sealing sleeve 7, contained inside the gun. itself, the metal fitting 8 of the flexible hose 9.

Una volta inserito il raccordo metallico 8 l'operazione si conclude reinserendo il fermo 10 nella feritoia 11, .che una volta inserito risulta complanare alla superficie esterna del guscio per motivi di sicurezza. Once the metal fitting 8 has been inserted, the operation is concluded by reinserting the stop 10 into the slot 11, which once inserted is coplanar with the outer surface of the shell for safety reasons.

La Fig.3 mostra anche un elemento tubolare di protezione 12 realizzato in materiale plastico, semirigido e di tipo noto, la cui funzione è quella di evitare eccessive piegature del tubo flessibile 9. Nella medesima figura viene anche mostrato un gancio di sicurezza 13 che ha la funzione di impedire erogazioni indesiderate del fluido in pressione bloccando il movimento della leva 5. Fig. 3 also shows a tubular protection element 12 made of plastic material, semi-rigid and of a known type, whose function is to avoid excessive bending of the flexible tube 9. The same figure also shows a safety hook 13 which has the function of preventing unwanted supplies of pressurized fluid by blocking the movement of the lever 5.

Come si evince da quanto descritto l'intera operazione di inserimento del tubo flessibile 9 nella pistola spruzzatrice avviene senza dovere aprire i gusci della pistola, e pertanto risulta di semplice e pratica attuazione. As can be seen from what has been described, the entire operation of inserting the flexible hose 9 into the spray gun takes place without having to open the shells of the gun, and therefore is simple and practical to carry out.

Claims (2)

RIVENDICAZIONI 1.Pistola spruzzatrice per idropul itric i comprendente un guscio esterno sagomato , in materiale plastico, all'interno del quale sono alloggiati, in apposite sedi, una valvola di erogazione del fluido in pressione, comandata da una leva collocata sull'impugnatura della pistola, i mezzi di raccordo della valvola di erogazione stessa con l'ugello erogatore ed i mezzi di connessione della valvola di erogazione con il tubo flessibile che alimenta il fluido in pressione, detti mezzi essendo del tipo a innesto maschio- femmina , caratterizzata dal fatto che sui mezzi di connessione solidali al tubo flessibile è presente una sede atta a ricevere un elemento esternamente rimovibile di vincolo in posizione di innesto del detto tubo, detto elemento essendo accolto in una apposita apertura ricavata sul guscio della pistola. CLAIMS 1.Spray gun for hydro cleaners comprising a shaped outer shell, in plastic material, inside which is housed, in special seats, a pressure fluid dispensing valve, controlled by a lever located on the gun handle, the means for connecting the dispensing valve itself with the dispensing nozzle and the means for connecting the dispensing valve with the flexible tube that supplies the pressurized fluid, said means being of the male-female coupling type, characterized in that on the connection means integral with the flexible tube there is a seat suitable for receiving an externally removable constraint element in the coupling position of said tube, said element being received in a suitable opening obtained on the shell of the gun. 2. Pistola spruzzatrice secondo la rivendicazione 1 caratterizzata dal fatto che l'elemento rimovibile di vìncolo è un inserto conformato a forcella, i cui bracci vanno ad impegnarsi nella apposita sede ricavata sui mezzi di connessione presenti all'estremità del tubo flessibile. 2. Spray gun according to claim 1 characterized in that the removable pinch element is a fork-shaped insert, the arms of which engage in the appropriate seat obtained on the connection means present at the end of the flexible tube.
IT1997RE000027U 1997-05-22 1997-05-22 SPRAY GUN WITH QUICK COUPLING IT238406Y1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
IT1997RE000027U IT238406Y1 (en) 1997-05-22 1997-05-22 SPRAY GUN WITH QUICK COUPLING
EP97202634A EP0885661A3 (en) 1997-05-22 1997-08-28 Spray gun with quick-fitting connector
DE29716004U DE29716004U1 (en) 1997-05-22 1997-09-06 Spray gun with quick release connector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT1997RE000027U IT238406Y1 (en) 1997-05-22 1997-05-22 SPRAY GUN WITH QUICK COUPLING

Publications (2)

Publication Number Publication Date
ITRE970027U1 true ITRE970027U1 (en) 1998-11-22
IT238406Y1 IT238406Y1 (en) 2000-11-13

Family

ID=11399032

Family Applications (1)

Application Number Title Priority Date Filing Date
IT1997RE000027U IT238406Y1 (en) 1997-05-22 1997-05-22 SPRAY GUN WITH QUICK COUPLING

Country Status (3)

Country Link
EP (1) EP0885661A3 (en)
DE (1) DE29716004U1 (en)
IT (1) IT238406Y1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29916385U1 (en) 1999-09-17 1999-12-23 Kaercher Gmbh & Co Alfred Manual spray gun for a high pressure cleaning device
DE202005011557U1 (en) * 2005-07-22 2005-09-29 Hammelmann Maschinenfabrik Gmbh High pressure spray gun includes pressure lever pivotally connected to grip part and pressing against free end of grip lever in functioning position for easier use with less effort
DE102006013005A1 (en) * 2006-03-22 2007-09-27 Alfred Kärcher Gmbh & Co. Kg High-pressure spray gun
CN103341420B (en) * 2013-06-18 2015-07-29 台州市大江实业有限公司 There is the air blow gun of quick change construction

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3973791A (en) * 1974-10-09 1976-08-10 Hps Company, Inc. Safety coupling device
DE4035008C2 (en) * 1990-02-28 1993-10-28 Suttner Gmbh & Co Kg Hose coupling for high pressure hoses
DE19617417A1 (en) * 1996-05-01 1997-11-06 Kaercher Gmbh & Co Alfred Manual spray gun for a high pressure cleaning device

Also Published As

Publication number Publication date
DE29716004U1 (en) 1997-10-23
IT238406Y1 (en) 2000-11-13
EP0885661A2 (en) 1998-12-23
EP0885661A3 (en) 2000-05-10

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