Connection system for fluid conduction

Abstract

A connection system for fluid conduction having a male connection end (2), a female connection end (3) and a retaining element (4). The male connection end (2) having a retaining groove (21) which makes up a first recess (22). The female connection end (3) having a retaining hole (31) which makes up a second recess (32) facing the first recess (22). The retaining element (4) is designed to be inserted through the retaining hole (31) and be housed between the first recess (22) and the second recess (32) to keep the male connection end (2) attached to the female connection end (3) when both ends (2, 3) are connected. The connection system (1) has a gasket (5) placed between the male connection end (2) and the female connection end (3), configured to hinder relative movements of said ends (2, 3) when connected along an axial direction (X).

Claims

1. A connection system for fluid conduction, comprising a male connection end (2), a female connection end (3) and a retaining element (4); wherein the male connection end (2) is designed to be inserted into the female connection end (3) along an axial direction (X) to connect both ends (2, 3); said male connection end (2) comprising a retaining groove (21) which makes up a first recess (22); said female connection end (3) comprising a retaining hole (31) which makes up a second recess (32) facing the first recess (22) when both ends (2, 3) are connected; and wherein said retaining element (4) is designed to be inserted through the retaining hole (31) and be housed between the first recess (22) and the second recess (32) to keep the male connection end (2) attached to the female connection end (3) when both ends (2, 3) are connected; said connection system (1) comprising a gasket (5) placed between the male connection end (2) and the female connection end (3), configured to hinder relative movements of said ends (2, 3) when connected along said axial direction (X); wherein the male connection end (2) comprises a first cone wall (25) configured to receive a first portion of the gasket (5); and in that the female element (3) comprises a second cone wall (35) configured to receive a second portion of the gasket (5); wherein the first cone wall (25) faces the second cone wall (35) when the male connection end (2) and the female connection end (3) are connected along the axial direction (X), forming a circular receiving groove (6) having a V-shaped cross section designed to receive the pressure exerted by the gasket (5).

2. The connection system according to claim 1, wherein the gasket (5) is pressed between the male connection end (2) and the female element (3) when both ends (2, 3) are connected along the axial direction (X).

3. The connection system according to claim 1, wherein the gasket (5) is partly or totally disposed outside the female element (3) when both ends (2, 3) are connected along the axial direction (X).

4. The connection system according to claim 1, wherein the gasket (5) is formed by a rubber O-ring.

5. The connection system according to claim 1, wherein the gasket (5) is made of ethylene propylene diene monomer rubber (EPDM) or fluorine rubber (FKM).

6. The connection system according to claim 1, wherein the male connection end (2) comprises an outer protruding wall (23) designed to press the gasket (5) against the female connection end (3).

7. The connection system according to claim 6, wherein the male connection end (2) comprises a boundary groove (24) designed to house the gasket (5), which is disposed between the male element (2) and the female element (3) when both ends (2, 3) are connected along the axial direction (X).

8. The connection system according to claim 7, wherein the boundary groove (24) is located next to the outer protruding wall (23).

9. The connection system according to claim 1, wherein the first recess (22) is formed by a first circular groove (22a) concentric to the axial direction (X).

10. The connection system according to claim 1, wherein the first recess (22) is formed by a first straight groove (22b).

11. The connection system according to claim 1, wherein the second recess (32) is formed by a second straight groove (32b).

12. The connection system according to claim 1, wherein the male connection end (2) comprises one or more circular slots (26), concentric to the axial direction (X), which house one or more sealing O-rings (27) to ensure the tightness of the connection system (1) when both ends (2, 3) are connected along said axial direction (X).

13. The connection system according to claim 1, wherein the connection system is a hydraulic system for fluid conduction in vehicles.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) What follows is a very brief description of a series of drawings that aid in better understanding the invention, and which are expressly related to two embodiments of said invention that are presented by way of non-limiting examples of the same.

(2) FIG. 1 represents an exploded perspective view of the connection system for fluid conduction of the present invention, according to a first preferred embodiment.

(3) FIG. 2 represents an exploded perspective view of the connection system for fluid conduction of the present invention, according to a first preferred embodiment, showing the female connection end longitudinally sectioned.

(4) FIG. 3 represents a longitudinal section of the connection system for fluid conduction of the present invention, according to a first preferred embodiment, when both connection ends are connected.

(5) FIG. 4 represents a perspective view of the male connection end of the connection system for fluid conduction of the present invention, according to a first preferred embodiment.

(6) FIG. 5 represents a longitudinal section of the male connection end of the connection system for fluid conduction of the present invention, according to a first preferred embodiment.

(7) FIG. 6 represents a perspective view of the male connection end of the connection system for fluid conduction of the present invention, according to a second preferred embodiment.

(8) FIG. 7 represents a longitudinal section of the male connection end of the connection system for fluid conduction of the present invention, according to a second preferred embodiment.

(9) FIG. 8 represents a cross-section of the male connection end of FIGS. 6 and 7 along the retaining groove.

(10) FIG. 9 represents a longitudinal section of the female connection end of the connection system for fluid conduction of the present invention.

(11) FIG. 10 represents a front view of the female connection end of the connection system for fluid conduction of the present invention.

DETAILED DESCRIPTION OF THE INVENTION

(12) FIGS. 1 and 2 show two exploded views of the connection system (1) for fluid conduction of the present invention, according to a first preferred embodiment. As seen, the connection system (1) comprises a male connection end (2), a female connection end (3) and a retaining element (4). The male connection end (2) is designed to be inserted into the female connection end (3) along an axial direction (X) to connect both ends (2, 3). The two connection ends (2, 3) are connected in shape coupling and are tightly assembled through the retaining element (4).

(13) The male connection end (2) comprises a retaining groove (21) which makes up a first recess (22). The male connection end (2) further comprises two circular slots (26), concentric to the axial direction (X), each one of them housing one sealing O-ring (27) to ensure the tightness of the connection system (1) when both ends (2, 3) are connected along said axial direction (X).

(14) The female connection end (3) comprises a retaining hole (31) which makes up a second recess (32) facing the first recess (22) when both ends (2, 3) are connected. The retaining element (4) is designed to be inserted through the retaining hole (31) and be housed between the first recess (22) and the second recess (32) to keep the male connection end (2) attached to the female connection end (3) when both ends (2, 3) are connected.

(15) The connection system (1) comprises a gasket (5) formed by a rubber O-ring placed between the male connection end (2) and the female connection end (3), configured to hinder relative movements of said ends (2, 3) when connected along the axial direction (X).

(16) FIG. 3 shows a longitudinal section of the connection system (1) for fluid conduction of the present invention, according to a first preferred embodiment, when both connection ends (2, 3) are connected.

(17) The gasket (5) acts under compression in the junction between the male connection end (2) and the female connection end (3) at any operating situation, even if the pressure of the system is not maintained. In this way, the gasket (5) avoids the free play between the male connection end (2) and the female connection end (3), and at the same time seals the junction between both connection ends (2, 3) to prevent leakage.

(18) The hermeticity of the system is fully assured by providing sealing means interposed between the male connection end (2) and the female connection end, using the two O-rings (27). As the gasket (5) also performs a sealing function, double safety is achieved for preventing leakage once both ends (2, 3) are connected.

(19) As can be seen in FIG. 3, the gasket (5) is pressed between the male connection end (2) and the female connection end (3) when both ends (2, 3) are connected along the axial direction (X). The pressure of the gasket (5) can be adjusted by varying the dimensions and/or properties of the gasket (5) according to the operational needs. This adjustment must allow the introduction of the retaining element (4) through the retaining hole (31) for connecting the connection ends (2, 3), and to assure that, once the retaining element (4) is housed between the first recess (22) and the second recess (32), the gasket (5) remains under compression.

(20) The gasket (5) is partly disposed outside the female element (3) when both ends (2, 3) are connected along the axial direction (X).

(21) The male connection end (2) comprises an outer protruding wall (23) designed to press the gasket (5) against the female connection end (3). The male connection end (2) further comprises a boundary groove (24) designed to house the gasket (5), which is disposed between the male element (2) and the female element (3) when both ends (2, 3) are connected along the axial direction (X). The boundary groove (24) is located next to the outer protruding wall (23).

(22) The male connection end (2) further comprises a first cone wall (25) configured to receive a first portion of the gasket (5).

(23) The female element (3) further comprises a second cone wall (35) configured to receive a second portion of the gasket (5).

(24) As can be seen in FIG. 3, the first cone wall (25) faces the second cone wall (35) when the male connection end (2) and the female connection end (3) are connected along the axial direction (X), forming a circular receiving groove (6) having a V-shaped cross section designed to receive the pressure exerted by the gasket (5).

(25) That is, the V-shaped cross section is configured to partly lodge the gasket (5) and to transmit its pressure. So, when the gasket (5) is pushed by the outer protruding wall (23) against the internal angle that forms the circular receiving groove (6), it presses the cone walls (25, 35) in opposite direction. In this manner, a better and more homogeneous distribution of forces is obtained all along the circular receiving groove (6).

(26) As can be seen in FIG. 3, the male connection end (2) comprises a front portion (2f) wherein the two circular slots (26) are disposed, having a front outer diameter (.sub.2f), and an intermediate portion (2i) wherein the retaining groove (21) is located, having an intermediated outer diameter (.sub.2i). The front outer diameter (.sub.2f) is smaller than the intermediated outer diameter (.sub.2i).

(27) Said double diameter avoids the two O-rings (27) to be cut during assembly of the connection. More specifically, if the front portion (2f) and intermediate portion (2i) had the same outer diameter (.sub.2i, .sub.2f), the O-rings (27) of the front portion (2f) could rub against the transversal edge of the second recess (32) of the female connection end (3) during the insertion of the male connection end (2) and be damaged.

(28) The male connection end (2) further comprises a rear portion (2r) having a rear outer diameter (.sub.2r). The rear outer diameter (.sub.2r) is larger than the intermediated outer diameter (.sub.2i), so that the outer protruding wall (23) can press the gasket (5) against the female connection end (3).

(29) FIGS. 4 and 5 show different views of the male connection end (2), according to a first preferred embodiment.

(30) According to this first preferred embodiment, the first recess (22) is formed by a first circular groove (22a) concentric to the axial direction (X). The first circular groove (22a) allows a relative rotational movement between the male connection end (2) and the female connection end (3) once attached. So, the male connection end (2) can be inserted within the female connection end (3) at any position.

(31) This first preferred embodiment is especially intended for connections in which the connection ends are aligned to one another, once connected, without any change of direction or orientation of the same being produced, such that the elements with which they are associated do not usually have a predetermined mounting position.

(32) FIGS. 6-8 show different views of the male connection end (2), according to a second preferred embodiment.

(33) According to this second preferred embodiment, the first recess (22) is formed by a first straight groove (22b). The first straight groove (22b) avoids a subsequent relative rotational movement between the male connection end (2) and the female connection end (3) once attached. So, a single insertion position of the male connection end (2) within a female connection (3) end can be fixed.

(34) This second preferred embodiment is especially intended for connections that only permit a single mounting position so as not to interfere with other components of the vehicle (such as the frame, chassis, fork, engine, handlebars, wheel, etc.). Such connections may be found for example in the automotive sector, and especially in the field of motorcycle brake systems, such as the wheel anti-lock braking systems (ABS). In this way, the assembly operations of the vehicle are considerably facilitated, the mounting times of the elements of said systems are reduced and the risk of said elements being mounted in an incorrect position is eliminated.

(35) FIGS. 9 and 10 show respectively a longitudinal section and a front view of the female connection end (3).

(36) The configuration of the female connection end (3) is the same for the two embodiments of the male connection end (2) previously described. As seen, the second recess (32) is formed by a second straight groove (32b), which in combination with the first circular groove (22a) allows the relative rotational movement between the male connection end (2) and the female connection end (3) once attached, and which in combination with the first straight groove (22b) prevents said rotational movement. The second straight groove (32b) also eases the manufacturing process as the second recess (32) may be formed by simply drilling the female connection end (3).