Hose coupler

Abstract

The invention relates to a hose coupling (1), comprising a coupling element (3), which is arranged on the hose end of a flexible hose line (2), and a coupling mating element (4), which can be detachably connected to the coupling element (3), at least one fluid channel (5, 6) being guided in each of the coupling element (3) and the coupling mating element (4), and the fluid channels (5, 6) of the coupling element (3) and the coupling mating element (4) connected thereto are connected to each other in a liquid-tight manner in a holding position of the coupling element (3) and the coupling mating element (4). The hose coupling according to the invention is characterized in that the coupling element (3) or the coupling mating element (4) has a coupling head (7) which can be inserted into a coupling head receptacle of the respective other element (4; 3) of the hose coupling (1) in a deflected position, and the coupling element (3) and the coupling mating element (4) can be deflected relative to each other between a deflected position and a retaining position in which the coupling head (7) is retained in the coupling head receptacle (8).

Description

Technical Field

[0001] The present invention relates to a hose coupling, which comprises a coupling element, which is arranged on a hose end of a flexible hose line, and a coupling mating element, which can be detachably connected to the coupling element, wherein at least one fluid channel is guided in the coupling element and the coupling mating element respectively, and the fluid channels of the coupling element and the coupling mating element connected thereto are connected to each other in a liquid-tight manner in a holding position of the coupling element and the coupling mating element. Background Art

[0002] Sanitary outlet fittings, toilet flushing tanks, washing or dishwashing machines and other water consumption locations are increasingly connected to the water supply network via flexible hose lines. In this case, the hose line is connected to the sanitary outlet fitting and / or the water connection device on the inlet side via a hose coupling of the type mentioned at the beginning, for example. The previously known hose coupling has a coupling element for this purpose, which can be detachably connected to the coupling mating element by a threaded connection. Here, there is the problem that the coupling element arranged on the hose end of the flexible hose line can only be tightened with the coupling mating element with considerable effort under limited spatial conditions, especially because the flexible hose line and the coupling element connected to it in a non-rotatable manner show resistance to rotational movement around the longitudinal axis of the hose.

[0003] US 2016 / 0003396 A1 discloses a fluid connector having a socket part, a spherical valve inserted into the socket part, and a plug part which is designed such that it can be inserted into the spherical valve at its tip section.

[0004] EP 3 112 737 A1 discloses a coupling device having coupling bodies and coupling clamps for pipes, wherein one of the coupling bodies can be inserted with its front end through the front end of the receiving coupling body with a base part into the base part of the other coupling body.

[0005] A discharge device on a concealed flush tank is known from CH 386 940, in which a discharge angle piece is arranged vertically movably in a cover box which is also concealed below the flush tank, a seal is provided which seals the vertical leg of the angle piece on the discharge connection pipe starting from the flush tank in all displacement positions, and the cover box also has an opening extending in the vertical direction to allow the end of the discharge angle piece on the discharge side to be displaced. Summary of the invention

[0006] The object is therefore to provide a hose coupling of the type mentioned in the introduction which is characterized by a simple, quick and reliable connection of the coupling element and the coupling counter element.

[0007] The solution according to the invention to this object in a hose coupling of the type mentioned at the outset consists in that in particular the coupling element or the coupling mating element has a coupling head which, in a deflected position, can be inserted into a coupling head receptacle of a respective other element of the hose coupling, and the coupling element and the coupling mating element are deflectable relative to one another between a deflected position and a retaining position in which the coupling head is retained in the coupling head receptacle.

[0008] The hose coupling according to the present invention has a coupling element, which is arranged on the hose end of a flexible hose line. The coupling mating element of the hose coupling can be detachably connected to the coupling element. At least one fluid channel is guided in the coupling element and the coupling mating element, respectively, wherein the fluid channels in the coupling element or the coupling mating element are connected to each other in a liquid-tight manner in the holding position of the coupling element and the coupling mating element. Here, the coupling element or the coupling mating element of the hose coupling according to the present invention has a coupling head, which can be installed in the coupling head receiving portion of the corresponding other element of the hose coupling in a deflected position. In order to connect the coupling element and the coupling mating element to each other in a liquid-tight manner, the coupling element and the coupling mating element can be deflected relative to each other between a deflected position and a holding position, in which the coupling head is held in the coupling head receiving portion. Since, in the hose coupling according to the invention, the coupling element and the coupling mating element can be connected to one another only by a pivoting movement into a holding position, and since no threaded connection is required for connecting the coupling element and the coupling mating element, the hose coupling according to the invention is characterized by a simple, rapid and reliable connection of the coupling element and its coupling mating element.

[0009] In order to simplify the pivoting movement of the coupling head in the coupling head receptacle and to connect the coupling elements to one another in a sealing manner in the holding position relative to the coupling counter element, the coupling head is designed as a ball head and the coupling head receptacle as a preferably spherical joint socket.

[0010] A liquid-tight connection of the hose coupling according to the invention in the region of its coupling element or coupling mating element is additionally facilitated if the coupling head or the coupling head receptacle has at least one circumferential seal which bears sealingly against the respective other element of the hose coupling.

[0011] For example, a circumferential groove can be provided in the coupling head receptacle, into which groove a sealing ring is inserted, which rests sealingly against the coupling head of the hose coupling.

[0012] In a particularly advantageous embodiment which ensures high sealing in all deflection positions of the coupling element and the coupling mating element, the coupling head has a circumferential sealing device in a cross section oriented transversely to the longitudinal axis of the coupling head, preferably in the region of the equator of the spherical shape of the ball head, which seal rests sealingly on a wall which defines the coupling head receptacle in the retaining position.

[0013] According to a structurally simple and particularly advantageous embodiment of the invention, the coupling element is designed in the form of a sleeve, and the partial area of ​​the coupling element facing the flexible hose line is designed as a connecting pipe, onto which the associated hose end of the hose line can be pushed. In order to prevent the hose end surrounding the connecting pipe from being pulled out axially from the coupling element, it is advantageous if the connecting pipe has a retaining molding on its pipe periphery. In order to allow the elastic material of the flexible hose line to be embedded in the retaining molding in the area of ​​the hose end, it is advantageous if the hose end pushed onto the connecting pipe is surrounded by a crimped crimping sleeve or extrusion sleeve. By means of this crimped crimping sleeve or extrusion sleeve, the hose end of the flexible hose line is fixed and securely held on the connecting pipe of the coupling element.

[0014] In order to limit the displacement travel when the flexible hose line is pushed onto the connecting piece, it is advantageous if the coupling element has an annular collar or shoulder on the outer circumference which serves as a displacement stop when the associated hose end of the hose line is pushed.

[0015] According to a particularly simple and expedient embodiment of the invention, it is provided that the coupling element has a ball head on its sleeve end region facing away from the connection piece.

[0016] In order to securely and firmly hold the coupling element in the holding position in the coupling mating element, a preferred further development of the invention provides that a retaining collar projects on the outer circumference in the region of the sleeve portion of the coupling element that projects beyond the hose end of the hose line, which retaining collar in the holding position at least partially engages from behind a retaining wall that is arranged in front of the coupling receiving portion in the insertion direction. Since in this further developed embodiment the coupling element inserted into the coupling mating element engages with its retaining collar projecting on the outer circumference against the retaining wall from behind, the coupling element is prevented from being accidentally pulled out axially from the coupling mating element.

[0017] In order to form the retaining wall which fixes the coupling element in the retaining position in a simple manner, it is advantageous if a retaining groove is provided in the insertion direction upstream of the coupling receptacle, the groove wall of which facing away from the coupling head receptacle is formed as the retaining wall.

[0018] The retaining collar can be delimited in a simple manner in the retaining groove until the retaining collar engages behind the groove wall designed as a retaining wall if the retaining groove has a trapezoidal or conical cross section, whose greatest inner width is arranged in the region of the groove opening.

[0019] If at least one fixing means is assigned to the hose coupling, by means of which the coupling element is held and fixed on the coupling mating element in a manner that prevents it from being deflected out of the holding position, the coupling element can be fastened in a simple manner on the coupling mating element in the holding position and prevented from being accidentally deflected out of the holding position. The fixing means can be designed as a cable tie, a strap, a hook and loop fastener, a U-shaped clip or a holding clamp.

[0020] According to a particularly simple and advantageous embodiment of the invention, it is provided that at least one retaining ring for the fastening means is provided on the coupling counterpart and that the fastening means surrounding the hose line or the coupling element passes through the retaining ring.

[0021] The hose line according to the invention can be used advantageously in a wide range of applications where a fluid is at least partially conducted in a flexible hose line. However, according to a preferred embodiment of the invention, it is provided that the hose coupling can be inserted into a sanitary water line. It can be advantageous here if the hose coupling can be arranged at the water inlet or water inlet of a toilet cistern. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Further developments according to the invention are apparent from the following description of the drawings in conjunction with the drawings. The invention will now be described in more detail with reference to preferred exemplary embodiments.

[0023] Shows:

[0024] Figure 1 A toilet flushing tank is shown, the water inlet of which is connected to the water supply network via a flexible hose line, the toilet flushing tank and the hose line being connected to each other via a hose coupling, the hose coupling having a coupling element and a coupling mating element which can be detachably connected thereto, and the coupling element and the coupling mating element being pivotable relative to each other between a deflected position and a holding position, in which the coupling element and the coupling mating element are held to each other in the holding position shown here;

[0025] Figure 2 Shown in the holding position in accordance with Figure 1 A coupling mating element that is immovably retained on a toilet flush tank and a coupling element that is detachably connected thereto;

[0026] Figure 3 Before being installed in the coupling mating element, Figure 1 and 2A sleeve-shaped coupling element of a hose coupling shown in , wherein the sleeve end region of the coupling element facing the coupling mating element is designed as a spherical coupling head and the sleeve end region facing away therefrom is designed as a connecting pipe onto which the hose line can be pushed;

[0027] Figure 4 Shown in already Figure 3 In the position shown in Figures 1 to 3 A top view of a hose coupler;

[0028] Figure 5 Show Figures 1 to 4 A perspective view of a hose coupling of , wherein the coupling element with its coupling head is shown in a deflected position, in which the coupling head can be pivotably inserted into a coupling head receptacle on a coupling mating element;

[0029] Figure 6 Shown in already Figure 5 The deflected position shown in Figures 1 to 5 A top view of a hose coupler;

[0030] Figure 7 Show Figures 1 to 6 A perspective view of a hose coupling of FIG. 1 in a holding position of a coupling element and a coupling mating element;

[0031] Figure 8 Shown in already Figure 7 The holding position shown in Figures 1 to 7 A top view of the hose coupler shown in FIG.

[0032] Fig. 9 Shown in Figures 1 to 8 The hose coupling shown in FIG. Figure 7 and 8 A longitudinal section in the holding position shown in ;

[0033] FIG. 10 shows Figures 1 to 9 A hose coupling, wherein the coupling element is connected to the coupling mating element by means of a tube that is open upward but relative to the coupling mating element. Figures 1 to 9 The holding clip of simplified design is releasably fixed in its holding position;

[0034] FIG. 11 shows Figures 1 to 9 A hose coupling, wherein the coupling element is releasably fixed to the coupling mating element by means of a downwardly open retaining clip;

[0035] FIG. 12 shows Figures 1 to 9 A hose coupling, wherein the coupling element is releasably fixed to the coupling mating element by means of a laterally open retaining clip;

[0036] FIG. 13 shows Figures 1 to 9 A hose coupling, wherein the coupling element is fixed to the coupling mating element by means of a cable tie;

[0037] FIG. 14 shows Figures 1 to 9 A hose coupling, wherein the coupling element is fixed to the coupling mating element by means of a tape or a hook and loop fastener, and

[0038] FIG. 15 shows Figures 1 to 9 A hose coupling in which the coupling element is fixed to the coupling counter element by means of a U-shaped retaining clip, wherein the free tabs of the U-shape arranged on both sides of the hose line can be additionally fixed by means of a screw connection. DETAILED DESCRIPTION

[0039] exist Figure 1 , a hose coupling 1 can be seen, which is arranged at the hose end of a flexible hose line 2, which connects a water consumer or a water removal point to a water supply. For this purpose, the hose coupling 1 has a coupling element 3, which is arranged at the hose end of the flexible hose line 2. The coupling element 3 can be detachably connected to a coupling mating element 4 of the hose coupling 1. In this case, at least one fluid channel 5, 6 is guided in each of the coupling element 3 and the coupling mating element 4, which fluid channels 5, 6 are connected to the hose coupling 1 at the ends of the hoses. Figure 1 , 2 7 to 9 are connected to one another in a liquid-tight manner in the holding positions shown.

[0040] exist Figures 1 to 9 In the embodiment shown in FIG. 1 , the coupling element 3 has a coupling head 7 which is connected to the coupling element 3 by a coupling head 7. Figure 5 and 6 In the deflected position shown in FIG. 1 , the coupling head can be inserted into the coupling head receiving portion 8 on the coupling mating element 4. Here, the coupling element 3 and the coupling mating element 4 can be Figure 5 and 6 The deflection position and Figures 7 to 9 , in which the coupling head 7 can be held and fixed in the coupling head receptacle 8 .

[0041] By Fig. 9From the longitudinal section in FIG. 1 , it is apparent that the coupling element 3 is designed in a sleeve-shaped manner, wherein the sleeve subregion of the coupling element 3 facing the flexible hose line 2 is designed as a connection piece 9 onto which the associated hose end of the hose line 2 can be pushed. In order to hold the hose end pushed onto the connection piece 9 on the coupling element 3, the coupling element 3 has a retaining molding 10 on the sleeve outer circumference of its connection piece 9. In order to embed the elastic hose material of the flexible hose line 2 on the inner circumference of the hose firmly in the retaining molding 10 and in order that the hose end surrounding the connection piece 9 cannot be accidentally pulled out of the connection piece 9, the hose end of the hose line 2 can be fixed on the connection piece 9 by means of a crimped or squeeze sleeve 11 surrounding the hose end and pressed.

[0042] The coupling element 3 has an annular shoulder or collar 12 on the outer circumference, which serves as a displacement stop when the associated hose end of the hose line 2 is pushed. In order to be able to pivot the coupling head 7 inserted into the coupling head receptacle 8 between a holding position and a deflected position and to seal this region of the water guide, the coupling element 3 has a ball head 13 on its sleeve end region facing away from the connecting piece 9, which can be inserted into the coupling head receptacle 8 designed as a spherical joint socket. In order to additionally seal this region of the hose coupling, the coupling head 7 or the coupling head receptacle 8 can have at least one circumferential seal, which rests sealingly on the respective other element 8, 7 of the hose coupling 1. In the embodiment shown here, the coupling head 7 has a circumferential sealing device 14 in a cross section oriented transversely to the longitudinal axis of the coupling, preferably in the area of ​​the equator of the spherical shape of the ball head 13, which in the retaining position rests on the wall of the coupling mating element 4 that defines the coupling head receptacle.

[0043] As especially by Figures 3 to 9 It can be seen that in the sleeve part region of the coupling element 3 that protrudes beyond the hose end of the hose line 2, a retaining collar 15 protrudes on the outer circumference, which retaining collar in the retaining position at least partially engages behind a retaining wall 16, which is arranged in the insertion direction Pf1 in front of the coupling head receptacle 8. In order to form this retaining wall 16 in a simple manner, a retaining groove 17 is provided in the insertion direction Pf1 in front of the coupling head receptacle 8, and the groove wall facing away from the coupling head receptacle 8 is formed as the retaining wall 16. In order to make it easier for the retaining collar 15 to be located in the retaining groove 17 when the coupling element 3 is pivoted inwards into the retaining position, the retaining groove 17 has a trapezoidal or conical cross section, the maximum inner width of which is arranged in the region of the groove opening.

[0044] At least one retaining ring 18 for a fixing means is provided on the coupling fitting 4, by means of which the coupling element 3 can be held and fixed on the coupling fitting to prevent it from being deflected out of the holding position. The fixing means can be passed through the retaining ring in such a way that the fixing means surrounding the hose line 2 or the coupling element 3 passes through the retaining ring.

[0045] Depend on Figure 1 to 1 5 is more obvious that various fixing mechanisms can be applied. Figures 1 to 9 In the embodiment shown in , a retaining clip 19 having an upwardly open insertion opening is provided on the coupling mating element 4. By pivoting the coupling element 3 inwardly into the retaining position, the free end of the retaining clip 19 widens in the region of the insertion opening until the coupling element 3 is locked into the retaining clip 19 and the free end of the retaining clip can spring back again.

[0046] The embodiment of the hose coupling 1 shown in FIG. 10 also has a retaining clip 19, which, however, is different from the retaining clip in FIG. Figure 1 and 2 The exemplary embodiments shown in FIG. 1 are designed in a simplified manner.

[0047] In the exemplary embodiment shown in FIG. 11 , a downwardly opened retaining clip 20 serves as the fixing means.

[0048] In the exemplary embodiment shown in FIG. 12 , the fixing means are formed by laterally open retaining clips 21 .

[0049] In the exemplary embodiment of the hose coupling 1 shown in FIG. 13 , a cable tie 22 is used as the fixing means, which cable tie 22 passes through the retaining ring 18 and is wrapped around the hose line 2 .

[0050] In FIG. 14 , the fastening means are formed by an adhesive strip or a strip-like body 23 which can be releasably locked at least at its strip ends.

[0051] In the embodiment shown in FIG. 15 , the fixing means is designed as a U-shaped clamp 24, wherein the free clamp ends of the U-shaped clamp 24 protruding next to the hose line 2 can be connected and fixed to each other by means of a screw connection 25. In addition to the above-described fastening possibilities, however, the coupling element 3 can also be held magnetically on the coupling mating element 4. This makes it possible, for example, to install a magnet instead of the ring 18, which interacts with a ferromagnetic mating piece or a press sleeve made of a ferromagnetic material installed on the hose line. Since this magnetically active variant exhibits a relatively loose fixation compared to the above-described fastening possibilities, it is only suitable for applications in which the hose coupling must be removed regularly and at short intervals.

[0052] The hose coupling 1 shown here can be used advantageously and universally wherever a fluid is to be conducted at least partially through a flexible hose line. However, the hose coupling 1 shown here can preferably be installed in a sanitary water line. The hose coupling 1 can be arranged, for example, at the water inlet or water inlet of a toilet cistern 26. In this case, the coupling mating element is held on the toilet cistern 26 in an unremovable manner, while the coupling element 2 of the hose coupling 1 is arranged on the associated hose end of the flexible hose line 2.

[0053] Reference numerals list

[0054] 1Hose coupler

[0055] 2 Hose lines

[0056] 3 Coupling elements

[0057] 4 Coupling components

[0058] 5 Fluid channels

[0059] 6 fluid channels

[0060] 7 coupling head

[0061] 8 coupling head receiving portion

[0062] 9Connection takeover

[0063] 10. Maintaining the molding part

[0064] 11 Extrusion sleeve

[0065] 12 Ring flange

[0066] 13 Ball Head

[0067] 14 Sealing device

[0068] 15 Retaining flange

[0069] 16. Keep Wall

[0070] 17 Retention slot

[0071] 18 Retaining ring

[0072] 19 Retaining clip (according to Figure 1 , 2 and 10)

[0073] 20 Retaining clip

[0074] 21 Retaining clip

[0075] 22 Cable Ties

[0076] 23 Adhesive tape or strip

[0077] 24 U-shaped clamp

[0078] 25 Threaded connection

[0079] 26 Toilet flushing tank

[0080] Pf1 push direction

Claims

1. A hose coupling (1), comprising a coupling element (3), the coupling element being configured to hold a hose end of a flexible hose line (2), and the hose coupling comprising a coupling mating element (4), the coupling mating element being detachably connectable to the coupling element (3), at least one fluid channel (5, 6) being guided in each of the coupling element (3) and the coupling mating element (4), and the fluid channels (5, 6) of the coupling element (3) and of the coupling mating element (4) connected thereto being connected to one another in a liquid-tight manner in a holding position of the coupling element (3) and the coupling mating element (4), wherein: The coupling element (3) or the coupling mating element (4) has a coupling head (7), which can be inserted into a coupling head receptacle of a coupling mating element (4) of a hose coupling (1) and a corresponding other element in the coupling element (3) in a deflected position, and the coupling element (3) and the coupling mating element (4) can be deflected relative to each other between a deflected position and a holding position, in which the coupling head (7) is held in a coupling head receptacle (8), and the coupling head (7) is designed as a ball head (13) and the coupling head receptacle (8) is designed as a hinge socket, and a retaining flange (15) protrudes from the outer circumference in the sleeve part area of ​​the coupling element (3) that protrudes beyond the hose end of the hose line (2), and the retaining flange (15) engages with a retaining wall (16) at least partially from the rear in the retaining position, and the retaining wall (16) is arranged in front of the coupling head receptacle (8) in the insertion direction (Pf1).

2. The hose coupling according to claim 1, characterized in that The coupling head receptacle (8) is designed as a spherical joint socket.

3. The hose coupling according to claim 1, characterized in that The coupling head (7) or the coupling head receptacle (8) has at least one circumferential seal which bears sealingly against the respective other element (8, 7) of the hose coupling (1).

4. The hose coupling according to any one of claims 1 to 3, characterized in that The coupling head (7) has a circumferential seal (14) in a cross section oriented transversely to the longitudinal axis of the coupling head, which seal (14) in a holding position bears sealingly against a wall delimiting the coupling head receptacle (8).

5. The hose coupling according to claim 4, characterized in that The coupling head (7) has a circumferential seal (14) in the region of the equator of the spherical shape of the ball head (13).

6. The hose coupling according to any one of claims 1 to 3, characterized in that The coupling element (3) is designed in the form of a sleeve, and a subregion of the coupling element (3) facing the flexible hose line (2) is designed as a connecting piece (9), onto which an associated hose end of the hose line (2) can be pushed.

7. The hose coupling according to claim 6, characterized in that The coupling element (3) has an annular collar (12) on the outer circumference, which serves as a displacement stop when the associated hose end of the hose line (2) is displaced.

8. The hose coupling according to claim 6, characterized in that The coupling element (3) has a ball head (13) on its sleeve end region facing away from the connection piece (9).

9. The hose coupling according to claim 1, characterized in that A retaining groove (17) is arranged in front of the coupling head receptacle (8) along the insertion direction (Pf1), wherein a groove wall of the retaining groove facing away from the coupling head receptacle (8) is formed as a retaining wall (16).

10. The hose coupling according to claim 9, characterized in that The retaining groove (17) has a trapezoidal or conical cross section, the largest inner width of which is arranged in the region of the groove opening.

11. The hose coupling according to any one of claims 1 to 3, characterized in that At least one fixing means is associated with the hose coupling (1), by means of which a coupling element (3) is held and fixed on a coupling counter element (4) in a manner prevented from being deflected out of a holding position.

12. The hose coupling according to claim 11, characterized in that The fixing mechanism is configured as a cable tie (22), an adhesive tape, a hook and loop fastener, or a U-shaped clip (24).

13. The hose coupling according to claim 11, characterized in that At least one retaining ring (18) for a fixing means is arranged on the coupling mating element (4), and the fixing means surrounding the hose line (2) or the coupling element (3) passes through the retaining ring (18).

14. The hose coupling according to any one of claims 1 to 3, characterized in that The hose coupling (1) can be installed in a sanitary water line.

15. The hose coupling according to any one of claims 1 to 3, characterized in that The hose coupling (1) can be arranged on the water inlet of a toilet flushing tank (26).

16. The hose coupling according to claim 6, characterized in that The coupling element (3) has an annular shoulder (12) on the outer circumference, which serves as a displacement stop when the associated hose end of the hose line (2) is displaced.

17. The hose coupling according to claim 11, characterized in that The fixing means are designed as holding clamps.

18. The hose coupling according to claim 11, characterized in that The fixing means are designed as retaining clips.

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