MXPA06005243A - A device for connecting two rigid tubular objetcs comprising a male part and a female part - Google Patents

Abstract

A device for connecting two rigid tubular objects comprises a male part (6) and a female part (1). The female part (1) consists of a sleeve (2) which at one of its ends is provided with a recess (3, 4). The male part (6) consists of a tube portion which at one of its ends (7) is provided with a transverse edge (8) which is formed by an indentation arranged in the outer wall, of the male part. A sleeve-shaped element (11) is arranged to be placed between the parts when inserting the male part (6) into the female part (1). The element (11) is provided with a resilient tongue (12, 13) with a first means (14, 15) which, during insertion of the element (11) into the female part (1), resiliently engages the recess (3, 4) thereof and a second means (16, 17), which during insertion of the male part (6) into the element (11), resiliently snaps into place behind the transverse edge (8) of the male part (6). The resilient tongue (12, 13) allows separation of the female part (1) and the male part (6) by turning of the element (11) relative to the male part (6) to a position where the second means (16, 17) of the resilient tongue (12, 13) is arranged radially outside the transverse edge (8) of the male part. The resilient tongue (12, 13) is, in turning for separation, with a portion (9) in the recess (3, 4) of the female part (1) raised radially outside the transverseedge (8) of the male part (6).

Description

DEVICE FOR CONNECTING TWO RIGID TUBULAR OBJECTS THAT INCLUDE A MALE PART AND A FEMALE PART Field of the Invention, The present invention relates to a device for connecting two rigid tubular objects, comprising a male part and a female part, which are interconnectable. The female part consists of a sleeve that at one of its ends is connected to, or constitutes, an integral part of one of the objects in which at its other end it is provided with at least one depression. The male part consists of a portion of a tube which at one end is connected to, or constitutes, an integral part of the other of the objects and at its other end on its outer wall is provided with a transverse edge which is formed by a Slit arranged in the outer wall of the male part. A cuff-shaped element is arranged to be placed between the parts when the male part is inserted into the female part. The element is provided by at least one resilient tongue with a first means which is arranged to resiliently couple the depression of the female part when the element is inserted into the female part, and a second means which is arranged to be adjusted to pressure of the female part. resilient form in place behind the transverse edge of the male part when the male part is inserted into the element.

Background of the Invention It is known from SE 512,411. (WO 00/09934) a device for interconnecting two rigid tubular objects of the type indicated by way of introduction. This device can be used to interconnect two rigid objects such as two tubes that are made of a non-elastic, rigid material.

Brief Description of the Invention The object of the present invention is to provide an alternative coupling device that can be used to interconnect two rigid objects, preferably tubular, such as two rigid tubes. Another object is to be able to indicate the correct interconnection of objects using a different indicator. According to the invention, this object is achieved by a device of the type indicated by way of introduction, characterized in that the resilient tongue allows the separation of the female part and the male part when the element is turned in relation to the part male to a position where the second means of the resilient tongue is positioned radially outside the transverse edge of the male part, the resilient tongue, in the turn for separation, with a portion in the depression in the female part * that rises radially outside the transverse edge of the male part. Further preferred features of the coupling device according to the invention are pointed out in the subclaims.

BRIEF DESCRIPTION OF THE DRAWINGS The invention will now be described in more detail with reference to the attached schematic figures which, by way of example, illustrate currently preferred embodiments of the coupling device according to the present invention. Figure 1 is a view with separation of parts of coupling device according to a first embodiment. Figure 2A is a cross-sectional view of the device according to Figure 1 in a connected state. Figure 2B illustrates an alternative embodiment of the device according to Figure 2A. Figure 3 is a perspective view of the female part and the element in the device according to Figure 1 in a connected state. Figure 4 illustrates an alternative embodiment of the coupling device according to the present invention. Figure 5 illustrates a coupling device according to the present invention where the female part constitutes an integral part of a coupling block.

DESCRIPTION OF THE PREFERRED EMBODIMENTS According to a preferred embodiment, the coupling device consists of a female part 1, whose main component consists of a sleeve 2, which can be manufactured, for example, in the form of a tube of a rigid, non-elastic material. As is evident from Figure 1, the sleeve 2 has in its mouth a mouth portion 2a with an outer and inner diameter greater than the remaining portion 2b of the sleeve, the transition between these two portions being designated 2c. As is evident from Figure 2A, two diametrically opposed depressions 3,4 are arranged in the mouth portion of the sleeve at the same distance from the mouth 5 of the sleeve 2. At its end (not shown) opposite the mouth, the part Female is provided with, for example, a threaded portion which is intended to be threaded into a rigid first tube (not shown) or integrally formed therewith. The male part 6, see Figure 1, consists of a portion of tube that at one end thereof (not shown) is provided in a threaded portion that is proposed to be threaded into a second rigid tube (not shown), which leaves to connect to the first tube. Alternatively, the male part may consist of a tube portion that is integrated into a unit such as a cooler. At its other end 7, the male part is provided on its outer wall with a transverse edge 8 which is arranged at a distance from the end surface of the other end 7. This transverse edge can be formed, for example, by removing material by grinding on the outside wall. It can also be formed by pressing the material, when grinding the material or, if the male part 6 is made of plastic, it is formed by injection molding the male part. A great advantage of a full encircling transverse edge 8 is that the turn or turn angle of the male part relative to the female part or the element is not important when the parts are interconnected. The solution is not conditioned by a stop during insertion, otherwise a means 10 can be arranged as a stop on the male part 6 at a greater distance from the other end 7 than its transverse edge 8. Alternatively, an stop edge on the female part, according to Figure 2B. In this example, the female part 1 has an inner diameter that is the same as the inner diameter of the male part 6. The device in Figure 2 is further simplified since it has no circumferential flanges in the female part 1, such as in the female part in Figure 2A, and neither lug 10 similar to the male part 6 in Figure 2A. As is evident from Figure 1, a cuff-shaped element 11 is arranged to be placed between the parts when the male part is inserted into the female part, the element being provided with two tongues, 12, 13 diametrically opposed resilients As best seen in Figure 2A, each resilient tongue is provided with a thickened portion at its free outer end to form a stop tab 14 and 15, respectively, protruding from the outer wall of the element. stoppers are arranged to resiliently engage the depressions 3 and 4 of the female part, respectively, when the element is inserted into the female part.The free outer end of each resilient tongue 12 and 13 of shape, on its side that is joins a transverse edge 8 of the male part, a stop edge 16 and 17, respectively, extending inward from the interior wall of the element, the stop edges are arranged to conform Pressing resiliently in place behind the transverse edge of the male part when the male part is inserted into the element 11.

The element is further provided at one of its ends with a means 18 which is arranged to join the stop against the mouth 5 of the sleeve when the resilient tongues and the stop lugs, respectively, couple the respective depressions in the female part 1. In order to facilitate the union of the female part and the element, the element 11 is provided with an indicator 21 adjacent to its means 18 while the female part on the outside is provided with lugs 22 having a shape corresponding to the indicator 21 As is further evident from Figure 2A, the outer diameter of the element "11" is somewhat smaller than the inner diameter of the female part adjacent to the first portion 2a while accessing the inside diameter of the remaining portion 2b corresponding approximately to the inner diameter of the element, as a result the thickness The wall of the element is equal to about half the difference between the mouth portion and the inside diameter of the remaining portion. In addition, the length of the element between its means 18 and its opposite outer end 19 is somewhat smaller than the length of the mouth portion of the female part, resulting in the opposite outer end 19 which is placed a short distance in front of the transition 2c between the first and the remaining portion of the sleeve 2 when the means 18 of the element joins the stop against the mouth 5 of the sleeve. Additionally, an O-ring 20 is arranged at the transition 2c between the first portion 2a of the sleeve and its remaining portion 2b to abut in a sealed manner against the outer wall of the male part 6 in the connected state of the device. It is also evident from Figure 2A that the outer diameter of the male part along a portion of its other end 7 and the medium 10 is slightly smaller than the inner diameter of both the element and the remaining portion, and that the The length of this portion exceeds the length of the first portion 2a of the female part, which results in the other end 7 of the male part extending a distance in the remaining portion 2b of the sleeve beyond the opposite outer end. of the element when the means 10 of the male part is butted against the means 18 of the element. When the first tube is to be connected to the second tube, the female part 1 is the male part 1 are first attached to the respective tubes unless they are formed as an integral part of the tubes. Then, the O-ring 20 is placed at the transition 2c between the mouth portion of the female part and the remaining portion. Subsequently, the element 11 is inserted into the female part 1, its resilient tongues 12 and 13 which are positioned in such a manner with respect to the depressions 3, 4 of the female part so that the lugs 14, 15 of stop engage the depressions 3, 4 and butt against the side edge 3b, see Figure 1, ie in a so-called correct mounting position and also so that the indicator 21 is placed between the lugs 22. In this way there will be a clear visual indication of the female part and the element that interconnects correctly without the user having to particularly listen to a sound as the stop tabs couple the depressions 3, 4 or have to verify the interconnection when trying once again to separate the parts. In this correct mounting position, the opposite outer end 19 of the element is placed close to the O-ring 20 while at the same time its means 18 is butted against the mouth 5 of the female part. Then, the male part 6 is inserted into the element 11 with its transverse edge 8 away so that the stop edges of the resilient tongues snap into place behind the transverse edge of the male part and thus they ensure in the male part the element, which in turn is secured to the female part. The coupling of the female part 1 and the male part 6 thus constitutes a quick coupling. It is also important to note that in the present coupling device, the axial forces that arise with respect to the use cause a turn or turn down the outer end of the resilient tongue towards the male part, which means that the greater the axial force, the better will be the blocking or securing of the resilient tongue to the female and male part. In the design of the resilient tongue as shown in Figure 2A and the design of the depressions of the female part as shown in Figure 3, the separation of the male part 6 and the female part 1 can be performed by rotating or turning the resilient tongue of the element by its means 18 relative to the male part so that the stopping edges of the resilient tongues 12, 13 are placed on the side of the transverse edge 8 of the male part, position in which its lugs of stops are placed on the opposite lateral edge 3a of the depressions. The inclined portions 9, see Figure 3, in the depressions of the female part raise, in the turn or turn of the element, the resilient tongues, 12, 13 by the tips 23, 24 of the resilient tongues so that the stop edges they are placed on the side of the transverse edge 8 of the male part and the male part of it can be pulled from the female part and the element. It will then be possible to remove the element from the female part by uncoupling the resilient tongues from the depressions of the female part by pressing them together after flipping the resilient tongues of the element relative to the female part so that they are placed on the other lateral edge 3b of the depressions. Figure 4 shows an alternative embodiment of a coupling device according to the invention. The function is the same as in the device in Figures 1-3. The difference lies mainly in the design of the male part 6, the element 11 and the female part 1. First of all, the male part 6 differs by a groove with axial limitations in both directions. Figure 5 illustrates a coupling block 25 where the female parts 1 are integrated in the coupling block 25. In this way, an element 11 and a male part 6 can be connected in the same manner as described above. The invention is not limited to the embodiments shown and described if it can be varied in various ways within the scope of the appended claims. For example, the female part 1 can be provided with one or more, for example four, depressions instead of two depressions, which in the case comprising three depressions are evenly distributed around the sleeve at the same distance from the mouth 5 of the sleeve , the element 11 that is provided with the same number of resilient languages as the number of depressions, uniformly distributed around the element at the same distance from its medium. It is also possible to design the male part and the element without the means 10 and 18, respectively, in which case the element must be turned relative to the male part indirectly via the female part. It is also possible for safety reasons, to arrange two or more O-rings 20 or other sealing elements at the transition 2c between the mouth portion of the sleeve and the remaining portion thereof. It is also possible to design the inclined portions 9 in a manner different from that shown, for example by allowing them to extend obliquely through the depressions in the female part. Alternatively, the inclined portions can be arranged in the depressions on the side next to the mouth 5 of the female part, the resilient tongues that are formed in cross section in a U-shape lying where the outer flange of the U-shape of the resilient tongue is the portion that slides in the inclined portion and thus lifts the resilient tongues when the element is turned or rotated. Another option is to fix a groove on the side of the depressions, a groove in which the resilient tongue adapts to run during the turn or turn of the element.

Claims (10)

1. CLAIMS 1. Device for connecting two rigid tubular objects, comprising a male part and a female part, which are interconnectable, the female part consisting of a sleeve which at one of its ends is connected to or constitutes an integral part of one of the objects and that at its other end is provided with at least one depression, the male part consisting of a portion of tube that at one end is connected to or constitutes an integral part of the other of the objects and at its other end in its outer wall is provided with a transverse edge that is formed by a groove arranged in the outer wall of the male part, and a cuff-shaped element that is arranged to be placed between the parts when the male part is inserted in the female part , the element that is provided with at least one resilient tongue with a first means that is arranged to resiliently couple the depression of the female part when the element is inserted. in the female part, and a second means which is arranged to pressurize resiliently in place behind the transverse edge of the male part when the male part is inserted in the element, characterized in that: the resilient tongue allows the separation of the female part and the male part by turning or rotating the element relative to the male part or a position where the second means of the resilient tongue is positioned radially outward of the transverse edge of the male part, the resilient tongue, in the turn or turn for separation, with a portion in the depression of the female part that rises radially out of the transverse edge of the male part. Device according to claim 1, in which the first means of the resilient tongue consists of a stop tab projecting from the outer wall thereof. Device according to claim 1, in which the second means of the resilient tongue consists of a stop edge extending inwardly from the inner wall thereof. Device according to claim 2, in which the element at one of its outer ends is provided with a means that is arranged to butt against the mouth of the sleeve when the resilient tongue stop tab engages the depression of the sleeve. part female Device according to claim 4, in which a medium is arranged in the male part at a greater distance from the other end of the same than its transverse edge, and that the medium is butted against the middle of the element when the edge of Resilient tongue arrest is butted against the transverse edge of the male part. Device according to claim 5, in which the outer diameter of the male part adjacent to a portion between its other end and the middle is somewhat smaller than both the inner diameter of the element and the inner diameter of the remaining portion of the element. The length of this portion exceeds the length of the mouth portion of the female part, which results in the other end of the male part "extending a distance in the remaining portion of the sleeve beyond the outer end. opposite of the element when the middle of the male part abuts against the middle of the element 7. Device according to claim 6, wherein at least one toric ring is arranged in the transition between the mouth portion and the remaining portion. of the sleeve for sealingly joining the stop against the inside of the sleeve and against the outer wall of the male part 8. Device according to claim 1, wherein the portion in the The depression of the female part is a lug with a slope in which the resilient tongue runs so that the resilient tongue is decoupled from the transverse edge of the male part when the male part is released when the element is turned or rotated. Device according to claim 1, in which the portion in the depression of the female part is a slot with a slope, in which the tip of the resilient tongue runs so that the resilient tongue is uncoupled from the transverse edge of the tongue. male part when the male part is released when turning or rotating the element.- 10. Device according to claim 1, in which the transverse edge of the male part completely encloses the male part. SUMMARY A device for connecting two rigid tubular objects comprises a male part (6) and a female part (1) . The female part (1) consists of a sleeve (2) which at one end is provided with a depression (3, 4). The male part (6) consists of a portion of tube that at one of its ends (7) is provided with a transverse edge (8) that is formed by a groove arranged in the outer wall of the male part. An element (11) in the form of a sleeve is arranged to be placed between the parts when the male part (6) is inserted in the female part (1). The element (11) is provided with a resilient tongue (12, 13) with a first element (14, 15) which, during the insertion of the element (11) in the female part (1), resiliently couples the depression ( 3, 4) of the same and a second means (16, 17), which during the insertion of the male part (6) into the element (11), resiliently presses in place in place behind the edge cross section (8) of the male part (6). The resilient tongue (12, 13) allows the separation of the female part (1) and the male part (6) by turning the element (11) relative to the male part (6) to a position where the second means (16) , 17) of the resilient tongue (12, 13) is arranged radially outside the transverse edge (8) of the male part. The resilient tongue (12, 13) is, in its turn for separation, with a portion (9) in the depression (3, 4) of the female part (1) - lifted radially out of the transverse edge (8) of the male part (6).