FR2577648A3 - TAP STRUCTURE, PARTICULARLY FOR LIQUEFIED GAS BOTTLES - Google Patents

Abstract

THE VALVE STRUCTURE INCLUDES A BODY 2 DEFINING IN ITS INTERIOR A VALVE CHAMBER 5 WHICH IS IN COMMUNICATION WITH A BOTTLE CONNECTION 3 AND WITH AN OUTLET CONNECTION 4. IN THE SAID VALVE CHAMBER 5 CAN MOVE IN TRANSLATION ONE OPERATING BODY 10 EQUIPPED WITH LATERAL SEALING MEANS 11 AND A GASKET 12 COOPERATING WITH THE OPENING 6 OF THE SAID FITTING 3 FOR CONNECTION WITH THE BOTTLE. THE MANEUVER BODY IS ASSOCIATED WITH A HANDLE 17 COOPERATING IN ROTATION WITH THREADS 19 DEFINED IN THE SAID VALVE CHAMBER 5. THE CHARACTERISTICS OF THE INVENTION IS THAT A STOP ELEMENT 21 IS PROVIDED TO BE TIGHTLY ADJUSTED IN A CIRCULAR SLOT 20 DEFINED IN THE SAID VALVE CHAMBER 5 AND TO BE ARRANGED IN AN ANNULAR SHAPE TO COOPERATE WITH A PROTUBERANCE PROVIDED AT THE INTERNAL END OF THE SAID HANDLE 17 TO PREVENT ITS SEPARATION OF THE SAID BODY 2. AT ITS EXTERNAL END, THESE STOP ELEMENT A A HEAD ALLOWING THAT THE STOP ELEMENT ITSELF CAN BE EXTRACTED FROM THE SAID CIRCULAR GROOVE 20.

Description

Faucet structure, especially for bottles

liquefied gas.

  The present invention relates to a valve structure,

  in particular for liquefied gas bottles.

  As already known, taps for liquefied gas bottles usually comprise a body which has a connector at its lower part to be connected to the bottle, and laterally, an outlet connector intended to be connected

to the device of use.

  The aforementioned connections open, inside said body,

  in a valve chamber, where it can move in transla-

  tion an operating body which is provided laterally with an O-ring seal which produces a seal

  on the side wall of the configuration valve chamber

  cylindrical, and downward, of a seal

  which is pressed against the opening of the bottle connection fitting to close the bottle when

It's necessary.

  The operating body is connected, for its translation, to a circular handle which cooperates in rotation with threads defined in the upper part of the valve chamber and which has, at its lower part, a stirrup

  which mates with the profiled head of the operating body.

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  To prevent the actuator body from escaping from the valve chamber, it is known to use pins which are fitted crosswise in said valve chamber and which cooperate by contact with the upper part of the stirrup, preventing so the handle to escape

while turning.

  With the type of construction which has just been described,

  the problem we face is that the shutter element

  ture, comprising one or more transverse pins, cannot be removed, once it has been introduced into the valve chamber, in such a way that it is impossible

  replace a worn or otherwise damaged seal.

  Therefore, this type of tap, as soon as signs of fatigue appear, must be replaced completely,

its repair being impossible.

  It is the object of the invention to eliminate these previous drawbacks by providing a valve structure, in particular for liquefied gas bottles, which is provided with a stop element for the operating body, allowing the access, if necessary, to the interior parts of the tap to replace the seals, simply by removing

  the stop member of the operating body.

  Within the framework of the above-mentioned aim, a particular objective of the invention is to provide a valve structure, which is provided with a stop device which is very effective but which can, if necessary,

be easily removed.

  Another object of the invention is to provide a valve structure which can be produced easily from elements and materials commonly available on the market, and which, because of its construction features, is advantageous from a point from a purely economic point of view. The above object, and others which will appear below, are achieved by a valve structure, in particular for liquefied gas bottles, comprising a body

  defining in its interior a valve chamber in common

  nication with a connection connection to the bottle, and with an outlet connection, in which can move in translation an operating body provided with lateral sealing means and a seal capable of cooperating with the opening of said connection connection to the bottle, said operating body being associated with a circular handle cooperating in rotation with threads defined in said valve chamber, characterized in that it comprises an element

  stop, suitable for being fitted tight in an annular groove

  area defined in said valve chamber, and adapted to take an annular shape so as to cooperate with a protuberance provided on the inner end of said handle so as to prevent it from separating from said body, said stop member having a head at its outer end provided to allow said stop member

  to be extracted from said annular groove.

  Other features and advantages will appear in

  the following description of a preferred embodiment but

  not exclusive of a valve structure, in particular for liquefied gas bottles, as shown by way of illustration and not limitation in the appended drawings, in which - Figure 1 is an axial sectional view of the valve structure; - Figure 2 is a partially exploded view of the valve structure; and - Figure 3 is a sectional view along line 3-3

in Figure 2.

  With reference to the cited drawings, the valve structure

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  of the invention, designated as a whole by 1, comprises a body 2 having at its lower part a connector 3 for connection to the bottle of liquefied gas or the like, and laterally, an outlet connector 4 for connection to the installation of use. Inside the body 2 ′ is delimited a valve chamber 5 which is in communication at the bottom, with the passage 6 for connection to the connector 3, while it

  is connected laterally to the outlet fitting 4.

  Inside the chamber 5, can move, trans-

  lation sealingly, an operating body 10 which has lateral grooves for receiving lateral seals formed by O-rings 11 and which supports at its lower part a seal 12 suitable for being applied to the opening 6 for close the bottle. Upwards, the operating body 10 has a mushroom-shaped head 15 which cooperates with a fork 16

  defined on the lower protrusion of the circular handle

  area 17 provided with threads 18 cooperating in rotation with a thread 19 defined in the upper part of the chamber

valve 5.

  The valve chamber 5 has in its upper part an annular groove 20 inside which a stop element can be adjusted tightly, which element comprises

  a small bar 21, preferably of square section, deformed

  ble so as to take, as best shown in FIG. 3, an annular shape adapting to that of the groove

herself.

  The particularity of the invention is that the small bar 21 mentioned has, at one of its ends, which is placed outside the valve chamber 5, a head 30 which advantageously forms a gripping element when

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  the bar 21 must be extracted from the annular groove.

  The head 30 in fact forms an element of cooperation with any tool or the like which can allow the bar 21 to be easily pulled out, to allow the repair of the valve operating body, as for example

  example by replacing old seals.

  Advantageously, the bar 21 has a substantially section

  transverse square shape and can cooperate substantial-

  Lement with the entire periphery of the fork 16 which is defined on the lower protuberance of the handle 17 thereby forming a stable and reliable retaining element for retaining the handle inside the

valve chamber.

  It can be seen from the above that the bar 21 is suitable for being fitted tightly in the circular groove 20 of

  in such a way that it deforms to take the configuration

  annular groove and is practically in place

  along a circumference around the protuberance itself.

  When it is necessary to carry out the maintenance of the tap, it is enough to exert a traction on the head 30 of the bar 21, head which is located outside the body 2 and is received

  in a recess 40 which is defined in the body itself.

  The invention which is described here is susceptible of numerous

  its modifications and changes without straying from the

  general line of the inventive concept.

  In addition, all the details can be replaced by

technical equivalents.

  By practicing the invention, the materials used, to the extent that they are compatible with the specific use, the specific dimensions and shapes can be

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  any as long as they meet specific needs

liers.

Claims (4)

Claims.   1. Faucet structure, in particular for liquefied gas bottles, comprising a body (2) defining inside a valve chamber (5) in communication with a connection (3) for connection to the bottle, and with a connection for outlet (4), in which an operating body (10) can move in translation provided with lateral sealing means (11) and a seal (12) capable of cooperating with the opening (6) of said fitting ( 3) for connection to the bottle, said operating body (10) being associated with a circular handle (17) cooperating in rotation with threads (19) defined in said valve chamber (5), characterized in that it comprises a stop element (21), suitable for being tightened in an annular groove (20) defined in said valve chamber (5) and suitable for taking an annular shape so as to cooperate with a protuberance provided on the inner end of said handle (17) so as to prevent it from separating from said body (2), said element t stop (21) having a head (30) at its outer end designed to allow said stop element (21) to be extracted from said annular groove.   2. Tap structure according to the preceding claim, characterized in that said stop element (21) comprises a small bar of a plastically deformable material capable of adapting to the configuration of said groove circular (20).   3. Faucet structure according to one of the claims   previous, characterized in that said head (30) is clean to be housed in a recess (40) defined in   the outer surface of said body (2).   4. Faucet structure according to one of the claims   previous, characterized in that said bar (21) has, practically in cross section, 'the shape of a square.