FR2689606A1 - Articulated connector joining a conduit to fixture - includes two connecting elements,each part of connecting elements terminated by widened out section to form spherical dome - Google Patents

Abstract

The articulated connector consists of two connecting elements (4,5), one to the element (7) and the other to a conduit (6), each part of the connecting elements is terminated by a widened out section to form a spherical dome (2,3). This dome (2,3) is held in position between a central spherical nut (1) and an outer spherical sleeve (12), both formed in rubber, so that the two widened parts (2,3) are separated by a distance (d). A hole (11) is provided in the nut (1) to ensure continuity of the hole in the conduit. The whole assembly is held externally by two semi-rings (13,14) butting onto the sleeve and held in position by the assembly (15,16). Use/Advantage - As a flexible connection between a fixed element and a conduit for the passage of a fluid for use in motor vehicles where a degree of vibration may be encountered and needs to be damped.

Description

Articulated connection ensuring a flexible connection between any organ and a pipe
The present invention relates to an articulated connection ensuring a flexible connection between any member and a pipe.

 The invention is particularly applicable in the case where a pipe carrying a fluid is connected to an organ, or to a machine or to another portion of pipe subjected to vibrations or generator of vibrations and which is linked to its support by the 'through a damping device, while the pipe is itself linked to fixed walls. So you can use a flexible connection like flexible hose, however this is not always possible, especially if the fluid pressure is very high, the rigidity of the flexible hose will be high and it will then be necessary to provide a loop of "soft" very large radius, sometimes incompatible with the space available: for example, in the case where the pipe, linked to the vibrating member mounted on a shock absorber, passes through a wall located very close to the machine or the vibrating member.

 It is also known to use a toggle system which has the drawback of being very stiff and therefore incompatible with applications in which the vibrations must not be transmitted. There is also known a laminated ball joint in which each end of the pipes is provided with a nozzle having the shape of a hemispherical cap which is sandwiched between an alternative succession of hemispherical rubber and metal caps resting on the inside. on a spherical metal core and which comprises on the outside two retaining half-shells joined by a sleeve with the ends curved against the half-shells. The production of such a ball joint is complicated and becomes practically impracticable when the diameter of the piping is small.

 The object of the present invention is to overcome these drawbacks and to propose a device of small bulk, allowing a slight displacement of a pipe end with respect to any member with a very low torsional stiffness and conical stiffness, ensuring filtration. sound and in which the pressure in the pipeline may be very high, for example greater than 200 bars.

 In the rest of the text, the expression "any organ" will be used to signify the object to be connected to a pipe. It may be a machine to which the pipe must be connected or any other member and for example the end of another portion of pipe.

 The expression any organ must therefore be understood as designating everything to which the device of the invention connects a pipe.

 The subject of the invention is therefore an articulated connection ensuring a flexible connection between any member, and a pipe, comprising two connection end pieces on the one hand to said member and on the other hand at the end of said pipe, each end piece is ending with a flared part in the form of a spherical cap, characterized in that it comprises a spherical rubber nut comprising an axial channel ensuring the continuity of the pipe, this spherical nut being taken between the two said flared parts separated one of the other from a distance d, a spherical rubber sleeve surrounding and connecting the two flared parts, the assembly being held externally by two half-rings bearing on either side on the sleeve and linked one to the other by means of assembly.

 We will now give the description of an exemplary implementation of the invention with reference to the accompanying drawing comprising a single figure.

 The connector according to the invention, shown in the figure, essentially comprises a spherical rubber nut 1 taken between two flared metal parts 2 and 3 each having the shape of a spherical cap. These two flared parts 2 and 3 are spaced from each other by a distance d allowing an angular movement of these two parts which are each linked to a connection end piece, respectively 4 and 5. These two end pieces allow the connection of the connector, on the one hand to a fixed pipe 6 and on the other hand to any member 7 mounted on damping pads 8.

 The end piece 5 is equipped with a threaded coupling ring 10.

 The spherical nut 1 comprises an axial channel 11 which ensures the internal continuity of the pipe 6. A spherical sleeve 12, also made of rubber, surrounds and connects the two flared parts 2 and 3.

 The assembly is held in place by two half-rings 13 and 14 resting on the sleeve 12 and assembled by a sheath 15 and a nut 16 ensuring prestressing of the assembly.

 The spherical nut 1 as well as the spherical sleeve 12 can possibly, but not necessarily, adhere to the flared metal parts 2 and 3. Likewise, the two half-rings 13 and 14 can also but not necessarily adhere or be glued to the rubber sleeve 12.

Claims (1)

CLAIM Articulated connection ensuring a flexible connection between any member (7) and a pipe (6), comprising two connection ends (4,5) on the one hand to said member (7) and on the other hand to the end of said pipe (6), each end piece ending in a flared part (2, 3) in the form of a spherical cap, characterized in that it comprises a spherical nut (1) made of rubber comprising an axial channel (11) ensuring the continuity of the pipe, this spherical nut being taken between the two said flared parts (2, 3) spaced from one another by a distance d, a spherical rubber sleeve (12) surrounding and connecting the two flared parts, l 'assembly being held externally by two half-rings (13, 14) resting on either side on the sleeve and linked to each other by assembly means (15, 16).