WO2013023316A2

WO2013023316A2 - Fluid connection

Info

Publication number: WO2013023316A2
Application number: PCT/CH2012/000193
Authority: WO
Inventors: Peter A. Mueller
Original assignee: Mueller Peter A
Priority date: 2011-08-16
Filing date: 2012-08-16
Publication date: 2013-02-21
Also published as: CH705415A2; WO2013023316A3

Abstract

The invention relates to a fluid connection (1) comprising a fluid tube (2) and a nipple (3). The nipple (3) comprises a tubular sleeve (13) and at least one groove (4, 4b) or notch (14), wherein the fluid tube (2) is connected to the nipple by means of the tubular sleeve (13). A plate (11, 11a-11f) is operatively connected to the nipple (3). The plate is in particular pivotable.

Description

fluid port

Technical area

The invention is based on a fluid connection to a hydraulic cylinder according to the preamble of the first claim.

The invention is further based on a fluid cylinder part or a fluid coupling according to the preamble of the further independent claim.

State of the art

Fluid connections, respectively hose connections are for the use of a

Hydraulic cylinder is a basic element and therefore are a large amount of

Connection variants on the market, which all have the same goal, namely to produce a fast, safe and leak-free connection between the hose and cylinder.

Most of the connections are threaded and a few have pluggable solutions, some of which also serve as quick-release fasteners, e.g. described in EP 0 467 381 A2 or US 5,570,910, or constitute a simple compound as described in DE 0 2009 052 284 A1 or US 5,226,844. In addition, for a quick connection of the nipple with the respective bore on the cylinder in many cases, clamps or slides are known, as described in the patent DE 44 15 841 A1 or EP 1 070 855 A1. Extensions to fluid hoses all have couplings with male and female parts and are also in the majority

Screw connections. Screw connection are tricky, because when screwed together unscrew the thread can take damage and thus a leak-free seal is negated. Furthermore, the problem between inch and metric threads is a continuing problem, especially if a hydraulic system in another continent requires a corresponding repair and not everywhere metric or inch mass are at hand. Thus, a repair is cumbersome or cumbersome, with the need to use rakecords / transfer means in between inches to metric or vice versa. Screw connections are usually very large in the outer masses and require a lot of space. Although there are space-saving Schraublösungen, but which have only limited holes and above all cause a disturbing flow of the fluid, as shown in EP 0 892 175 A

Quick connections are a good solution, but e.g. in the water area prone to dirt, resp. Fouling, which makes it difficult to loosen the tube from the cylinder and in such a case anything but a quick release can be called. A practical solution can be seen in the patent US 5,226,844 Figure 2, in which the nipple has a shoulder which is depressed by means of a small plate and held in position, wherein under the shoulder an O-ring is attached, which presses on a stepped bore in the cylinder, but causing the desired nipple contour in making a lot of material loss. In the patent DE 10 2009 052 284 A1, the corresponding contour of the shoulder of the nipple by means of forming technology and expensive mold costs and little flexibility

shaped accordingly.

Presentation of the invention

The invention has for its object to produce a simple and safe, and leak-free connection to a fluid hose to a fluid cylinder and the possibility

serves a conical or angular recess for a small plate, which holds the hose connection with the cylinder.

This achieves a part which is extremely easy to produce in production, which at the same time simplifies the stepped bore in the cylinder, in particular with respect to a nipple designed by means of forming technology, which has relatively large radii and the counterpart must be correspondingly dimensioned.

Due to the high manufacturing flexibility, the nipples can be realized quickly in different sizes, or can be provided with double seals or made in various materials and, if necessary, finished with appropriate coatings, while e.g. the shoulders in the form of a snap ring can always be offered in the best chrome steel or with a PTFE coating.

In order for the nipple to sit virtually free of play in the cylinder, in addition to the tolerance specifications calculated according to the prior art, a correspondingly long seat is required, as well as the plate, which has the shape of a fork, the nipple with a corresponding contact pressure down on a washer and this Then press on the O-ring in the cylinder and at the same time make sure that the nipple can not be released from the cylinder by itself.

Missing the space to ensure a sufficiently long seat, a further groove is attached to the nipple, in which case the fork-shaped plate an annular

Has embracing, so that when inserting and pressing the small plate on the cylinder, this nipple by more than 240 ° and thus the nipple with a transverse load can hardly tilt by the nipple resp. Circlip is held by the platelet more comprehensive.

With known, increased force effects, a second, opposite plate can be added to the forked plate in order to additionally strengthen the stability of the nipple.

The wafer may also have the function of a quasi-slide with a screw which can be operated at low angular degrees, e.g. 45 ° or 90 °, the plate dissolves and this can also be raised if necessary and then pushed aside, in order to get the nipple free in this way and the fluid connection thus a practical

Quick release will. The plate is not designed as a pure sliding element, but can be raised at any time manually or by spring force, an extremely important circumstance in the marine and other outdoor areas, where hardened dirt, sand or vegetation makes a sliding function difficult. In addition, the nipple together with the plate at the same time be a coding, in that the size or eg a double guide of the snap ring has an influence on the mounting of the plate or the nipple and the space in the cylinder

have corresponding shape, so that only a certain nipple has space in the corresponding opening in the cylinder.

The key is that the nipple is guided in the bore and tolerated accordingly so that a truly leak-free use can be ensured. In addition, the

continue inventive compound also from hose to hose, this is the plate folded to save space and is fastened to the side of a connecting body.

Further advantageous embodiments of the invention will become apparent from the dependent claims.

Short description of the drawing

In the following, embodiments of the invention will be explained in more detail with reference to the drawings. Same elements are in the different figures with the same

Provided with reference numerals.

Show it:

1 is a side view of a fluid tube with the fluid connection, which is a

Washer and an O-ring, which in a stepped bore

is embedded and is held by a forked plate by means of a screw

Fig. 1a is a side view of a nipple with the hose connection, the

Schlauchbegrenzungsnut, the groove for the snap ring or bifurcated plate and a guide sleeve Fig. 1b is a side view of a nipple with the hose connection, the

Hose limiting groove, the groove for the snap ring or bifurcated plate, the groove for an O-ring and a guide sleeve

2 shows a side view of a fluid hose with the fluid connection, which has a

Circlip, a washer and an O-ring, which in one

Stepped bore is embedded and is held by a forked plate by means of a screw

Fig. 3 is a side view of a fluid hose with the fluid connection, which has an additional groove, a washer and an O-ring, which is embedded in a stepped bore and is held by an annular plate with a collar by means of a screw

4 shows a side view of a fluid hose with the fluid connection, which has a

Circlip, a washer and an O-ring, which in one

Stepped bore is embedded and is held by a fork-shaped plate with slot and a quick stop with pressure piece

Fig. 5 is a side view of a longitudinally displaceable fork-shaped plate with a

Slot, screw, puncture and a limiting means

Fig. 6 is a side view of a fluid coupling with the above-named

Hose connection in the screwed and in the self-closing version and a quick release handle.

Only the elements essential for the immediate understanding of the invention are shown. Way to carry out the invention

Fig. 1 shows a side view of a fluid connection 1 which consists of a

Fluid hose 2 with a nipple 3 pressed thereon. The nipple 3 has a plate groove 4, including the washer 6 and the O-ring 7 and a guide sleeve 8, which lies in a stepped bore 9 on the cylinder part 10 and a fork-shaped plate 11 with the screw hole 5 for the screw 12 as

Locking means of the fluid tube 1 on the cylinder part. 1

The preparation of the nipple 3 for the central hose connection to the cylinder is extremely simple with the inventive solution: the nipple 3 has, in the

Vertical view, above a molded according to the prior art hose sleeve 13, including a hose groove 4a, which is advantageously formed as a half-shell-shaped groove, so that therein a hose ring 5a, e.g. a snap ring, can be attached, including the plate groove 4, and a tolerated guide sleeve 8, which engages in the tolerated stepped bore 9 accordingly. The stepped bore

9 initially has a larger bore in which the O-ring 7 is inserted, the leading edge being a chamfer, e.g. 15 °, so that the O-ring can not be damaged when inserting. That comes over it

Washer 6, which ensures that the O-ring 7 is uniformly pressed over the entire circumference and thus can exercise its predetermined sealing function. The underlying smaller hole serves to the

Guide sleeve 8 and thus the fluid port 1 to safely support and center. The plate 11, which is fork-shaped and a

Screw hole 15 is retracted into the plate groove 4 and by means of the screw 12 which is screwed into the cylinder part 10 so that the plate 1 presses on the O-ring 7 and the whole is securely held.

A tilting of the nipple 3 is thus excluded, since this is tolerated in the correspondingly long guide sleeve 8 in the stepped bore 9, both closely to each other. The tolerated height of the plane of the cylinder part 10, respectively. the underside of the plate 11 to the level of the support of the O-ring 7, has the further advantage that so that the O-ring 7 is pressed with a defined mass and its task as a sealing element thus ideally complies and therefore can not be over-pressed, which could possibly lead to the destruction of the O-ring 7. The nipple 3, which is provided with the hose groove 4a and the groove 4, is thus an economical and ecological advantageous construction, which hardly

Has material waste and can be produced on modern CNC bar automatic machines quickly and accurately and not necessarily consuming molds required to push the part with a lot of energy in the form, resp. to compress. The

Hose groove 4a, which consists of round or flat wire and on which the

Hose ring 5a is attached, is used in the assembly of the fluid hose 2 on the hose sleeve 3 as insertion limit, as well as the compression sleeve 13a, which ensures the connection between the fluid hose 2 and nipple 3. The plate 11 is pressed vertically from above onto the washer 6 and thus ensures that the surface pressure on the O-ring is balanced and the nipple 3 is tilt-proof in the stepped bore 9 and thus provides a safe, leak-free and inexpensive fluid connection 1. Fig. 1a shows a side view of the nipple 3 as described in Fig. 1, which is easy to manufacture, since it consists of a tube with an inner diameter O for the passage of the fluid flow and with the appropriate external shape for the hose sleeve 13, hose groove 4a , Plate groove 4 or snap ring groove 4b and guide sleeve. 8

At first glance, it can be seen that the entire nipple 3 is a virtually straightforward shape with little difference in diameter and instead of the

Forming shoulders from the full or by means of elaborate rotary swaging to process the material from a maximum large to different smaller diameter, material is removed in this construction to make room for inserting the plate 1 or to create a shoulder by means of clip a snap ring. Depending on the type of cylinder can thus quickly on the

Needs for shape or size of a groove, e.g. Regarding seal or length of the guide sleeve 8 consideration be taken to provide each of the optimal version.

1b shows the nipple a further variant, starting from the tube as described in Fig. 1a, in turn with the hose connection, the hose sleeve 13,

Hose groove 4a, plate groove 4 or snap ring groove 4b and guide sleeve 8, and in addition an O-ring groove 4c. In this way, a corresponding shoulder in the form of a hose ring 5a can be attached to the hose groove 4a, in addition to a snap ring 5 in the

Snap ring groove 4b, on the one hand, the later allowable O-ring 7 according

To optimize the description in Figure 2 in its sealing effect, or retract a plate 11 in the plate groove 4 and hold it directly axially as shown in Figure 1 and instead of inserting the O-ring 7 as in Figure 1 in the stepped bore in the first paragraph. to mount the O-ring 7 radially in the O-ring groove 4c and thus to ensure the sealing of the fluid. This can be depending on the pressure forces of the hydraulic system additional back-up resp. Support rings require, which can be attached according to the O-ring groove 4c in width and shape. Not shown here is the circumferential notch 14 as described in Fig. 3, which serves as an introduction means for the annular plate 11 a. The nipple 3 can be made with a corresponding guide sleeve 8 or be secured with no guide sleeve 8 and the anti-tip of the nipple 3 by other means as also shown in Figure 3. Furthermore, can be with this

Production method in the same operation on the guide sleeve 8 a tolerated Mass T or and produce a corresponding surface procurement inexpensive.

FIG. 2 shows a side view of a fluid connection 1 which consists of a

Fluid hose 2 with a nipple 3 pressed therein, which has a snap ring groove 4b in which a snap ring 5 is clipped, including a washer 6 and the O-ring 7. The nipple 3 also has a

Guide sleeve 8, which is embedded in a stepped bore 9 on the cylinder part 10 and the whole of a forked plate 11 is pressed and held on the snap ring 5 by means of a screw 12.

The preparation of the suitable nipple 3 for the central hose connection to the cylinder part 10 is extremely simple: the nipple 3 advantageously has a half-shell-shaped snap ring groove 4b, so that the snap ring 5 has as full contact as possible, and a tolerated guide sleeve 8, which according to the tolerated stepped bore 9 engages. The stepped bore 9 first has a larger bore, in which the O-ring 7 is inserted. In addition, the washer 6, which ensures that the O-ring 7 is pressed uniformly over the entire circumference and thus its predetermined Can exercise sealing function, it is the snap ring 5, which is attached to the nipple 3. The underlying second and smaller bore serves to support the guide sleeve 8 and thus the fluid port 1 safely and center. The plate 11, which is fork-shaped and a

Screw hole 15 has, presses when screwing the screw 12 on the snap ring 5 which is held on the cylinder part 10. A tilting of the nipple 3 is thus excluded, since this in the correspondingly long guide sleeve 8 in the stepped bore 9, both closely tolerated to each other, is. The tolerated height of the plane of the cylinder part 10, respectively. the bottom of the plate 11 to the level of the support of the O-ring 7, has the advantage that so that the O-ring 7 is pressed with a defined mass.

The size of the snap ring 5, which consists of round or flat wire, together with the plate 11, the necessary area coverage, which may be 235 ° and more without much effort to the nipple 3 and thus the

Fluid connection 1 securely hold in this way. shows a side view of a fluid port 1, which is identical to Figure 1, except that the guide sleeve 8 is short and the nipple 3 has a notch 14, and an annular plate 11 a with a tolerated

Screw hole 15a is used.

In confined spaces, it may be that the guide sleeve 8, which prevents tilting of the nipple 3 and thus of the fluid connection 1, can not be chosen long enough, the stepped bore 9a can not be tolerated and thus represents a risk of tipping. Therefore, the annular plate 11a takes over the securing to prevent tilting of the nipple 3. This has a shape with an annular part, which has an increased wall thickness and like a collar around the nipple 3 sets. The plate 11a is inserted at the point K of the notch 14 on the nipple 3 with the opening K in the tolerated round part D, which corresponds to the diameter D of the nipple 3. If the plate 11 a retracted, it can drive over the nipple 3 down and pushes by means of the force of the screw 12, as already described in Figure 1, on the snap ring 5. This allows a comfortable surface coverage between snap ring 5 and plate 11 a of 280 ° can be achieved. The screw hole 15 and the

Screw 12 are tolerated, so that the nipple 3 can be placed and held in a predefined position or a centering pin, not shown here between the cylinder part 10 and the plate 1 a ensures the correct

Positioning of the nipple 1a. It is also possible that the washer 6 is tolerated and with the corresponding wall thickness, in particular with a collar which radially supported on the plate 11a, also represents a solid tilt protection and centering.

Fig. 4 shows a side view of a fluid port 1, which is identical to Figure 2, except that a slot plate 11b serves as a quick connection means together with the lever 16 and the grid 17 and push pin 18a, and a spring 25 and a coding means 21 has.

The slot plate 11b has a screw hole 15b for the lever 16 and a grid hole 18 in which the pressure pin 18a engages, the lever 16 has a thread 19 with a corresponding pitch, so that with a revolution of less than 1, the slot plate 11b solved as can also be moored and the lever 16, a pressure pin 18a is mounted, which engages in the grid hole 18 and thus holds the lever 16 in the closed position. By operating the lever 16, the slot plate 11b is relaxed and moves upward, which is done automatically by the decompression of the O-ring 7 or and by means of a spring 25 which lies between the cylinder part 10 and slot plate 11b. At the same time, the pressure pin 18a from the grid hole 18, which has its continuation, if necessary, in the cylinder part 10 is raised, and thus the slot plate 1 b can be manually moved backwards and thus the snap ring 5 are released with the nipple 3 and the fluid hose 2 can be deducted from the cylinder part 0.

Is there a risk that the fluid hose 2 on and off side forces occur or the guide sleeve 8 is too short or not tolerated or completely absent, by means of a combination of an annular plate 1a and slotted plate 11b, the nipple 3 still be securely held in position or an opposite second plate 11, respectively. a web 20 secures the slot plate 11b and the nipple 3 in addition.

The fluid connection 1 may also have a coding means 21 by at the

Plate 11, be it forked or ring-shaped or provided with a screw slot 5b or be mounted on the web 20 or in the stepped bore 9, a coding 21, so that the fluid tube 2, respectively. The nipple 3 can be introduced only by means of the correct coding in the stepped bore 9. shows a side view of another variant of a longitudinally displaceable fork-shaped plate 11c with the screw long hole 15b and the rib 23, and indicated with the screw 12, a boundary edge 22 and a recess 24th

If the fluid connection 1 serve as a simple quick connector, in addition to be provided with a conventional screw 12 and the screw 12 is not always completely turned out of the thread when retracting and extending the nipple 3, this can be achieved on the one hand by means of a pivotable plate 1c by means of the broken line Q of a cross fork for the nipple 3, but which does not require a slot for the screw 12, with the uncertainty that in the event of unwanted loosening of the screw 12, eg due to vibrations, the pivotable plate 11c can swing so far from the nipple 3 that the nipple 3 could ultimately move out of the stepped bore 9 or, in the case of a longitudinally displaceable fork-shaped plate 11b with a

Schraubenlangloch 15b, in an unwanted loosening of the screw 12, the plate 11b also move and the nipple 3 could thereby detach. To counter this, of course, the first measure is to secure the screw 12 by means of securing means according to the prior art, on the other hand, it is important from the point of view of assembly to ensure that a pivotable or displaceable plate 11c is placed correctly and the nipple 3 correctly includes. This is ensured by a paragraph is attached to the cylinder part 10, which serves as a boundary edge 22, so that the pivotal or displaceable plate 11c between the nipple 3 and the boundary edge 22 is practically clamped and the width of the boundary edge 22 also a rotation of the pivoting or sliding plate c prevents it. The boundary edge 22 may also be a three-dimensional grid that fits into the pivotable or displaceable plate 11c with the same grid. The tightening of the pivotal or displaceable plate 11c on the cylinder part 11 by means of the screw 12 secures the nipple 3 in its position. If the pivotable or displaceable plate 11c is not placed correctly and therefore does not lie completely against the nipple 3, this can already be seen optically at the gap, because the pivotable or displaceable plate 11c is thus not lying flat on the cylinder part 10. Instead of a strong wall pivoting or sliding plate 1c, a less wall strong sheet metal can be used, but it is at least one cantilevered up to a rib 23 and thus increases the stability of the sheet and is also a gripping means to the pivoting or sliding plate 1 c manually easier and over the grading of the boundary edge 22 lift and move backwards, so that space is created to remove the nipple 3 from the stepped bore 9. Usually you move on

Fluid hose 2 after the pivotal or sliding plate 11c has been solved by means of the screw 12 and then pushes the plate 11c to the side. Also, a spring pressure piece may be mounted between the cylinder part 10 and the plate 11c to make it easier to lift or, in the case of a great deal of fouling, by means of the puncture 24, it may be connected to e.g. Screw driver, this between cylinder part 10 and plate 11c and lift the plate 1c.

6 shows a side view of a simple and compact fluid coupling 26,

consisting of the fluid port 1 as shown in Fig. 2 with a clip 27 on the forked and folded plate 11 d held by the screw 12 and an opposite fluid port 1 as shown in Figure 3 with the annular and folded plate 11 e and the automatic locking device 28 and the quick release handle 29th

By way of example, two different versions are indicated on the fluid couplings 26 and the customer will be able to choose whether to prefer a screwed or an automatically locking version, both versions also having a different security by means of the plate 11d, 11e. The design of the two fluid connections is identical to that in Fig. 2 resp. 3 illustrated constructions. Only the corresponding plate 11 is angled at 90 °, so that this at a

Side of the fluid coupling 26 can be fixed by means of the screw 12, thus saving space and additionally has a clip 27 which surrounds the nipple 3 and may be in plastic and can be expanded with appropriate force and function as the Nichtverlieren the plate 11 d at the disassembly and decoupling of the fluid tube 2, respectively. Nippels 3 of the fluid coupling 26 has. In the opposite version, the annular plate 1e is attached to the nipple 3, as described in Fig. 3 and when inserting the angled plate e via the nipple 3, the angled portion of the plate 11e moves along the side of the fluid coupling 26 and by means of the front cut edge, this travels over the tapered retaining pin 30 and at the insertion end of the retaining pin 30, which is pressure-loaded by the compression spring 31, in the screw hole 15 and thus locks the nipple 3 in its position. At the notch 14, a ring, not shown here, can be clipped, so that even after opening the plate 11e this can not fall from the nipple 3.

The release of the plate 11e is effected by means of pressure on the holding pin 30, either by means of a tool, such as e.g. a screwdriver, or by means of the Schnellauskoppelgriffs 29 which is rotatably mounted on the housing of the fluid coupling 26 and the front has a nose 32 which presses against the retaining pin 30 presses on the quick release handle 29 and pushes this, and thus the plate 11e releases. By means of the secure coupling of the fluid hoses 2, the fluid in the stepped bore 9, 9a can thus flow in one or the other direction.

The folded plates 11d, 11e can be folded in a U-shape instead of an L-shape and the screw 12 or the locking device 28 can also be mounted eccentrically on the fluid coupling 26. shows a three-quarter view of a cylinder 10 with the nipple 3, the

Swivel plate 11 f and the grid 17 in the grid hole 18 and the screw 12, and the cylinder end 34th

The release of a fluid connection 1 on a cylinder 10, in particular in the marine area, which is usually afflicted with growth, is a sliding of the plate 1 difficult to impossible. By means of the pivoting movement - according to arrow S - the pivot plate 11f, it now pivots over the cylindrical surface 33 in the free space, i. beyond the diameter, in case the cylinder is cylindrical. Such shearing movements cause the growth of algae, marine creatures or limestone layers to chip off, so that the pivoting movement can be accomplished without effort. The grid 17, which in the cylinder 10, resp. in the

Zylinderendstück 34 is inserted and the counterpart, the grid opening 18, prevent uncontrolled pivoting of the large extent

Swivel plate 11f, even if the screw 12 is not dutiful or due to excessive vibration dissolves something, but continue to the Positional position of the nipple 3 in the cylinder 10, respectively. remains secured in the cylinder end 34.

The advantageous, controlled swinging of the pivot plate 11 f takes place by these raised and lifted over the grid 17 or the grid 17 is pulled out of the Zylinderendstück 34 and thus gives the

Pivoting free or the grid 17 is a pressure pin 18a and is pressed with an object down and also releases the pivoting path.

The same applies to the assembly and is also a guarantee of optical control, whether the grid 17 securely embedded in the grid hole 18 and thus ensures that the nipple is held properly. If the grid is not correctly engaged in the grid hole 18, the nipple 3 can not be held at all and in this way the user recognizes that the fluid connection operation has not been completed.

The transverse fork opening Q is formed so that when pivoting the

Swivel plate 11 f not shown here shoulder on the nipple 3, which may be a snap ring 5 as shown in Figure 2 or a directly formed on the nipple 3 one-piece shoulder element, e.g. instead of the snap ring groove 4b shown in FIGS. 1a, 1b, this forms a long engagement, i. when swinging the pivot plate 11f over the shoulder, this early in engagement with the latter.

It goes without saying that the elements described above under FIGS. 1 to 6 can also be used here in FIG. 7. For example, the plate may be made with the quick connect means 16, 17, 18a, with the locking device 28, or with or without a guide sleeve 8, or in communication with the fluid coupling 26, etc.

Furthermore, the pivot plate 11f may constitute a boundary by using a retaining ring such as a retaining ring, e.g. a snap ring or circlip, only one-sided held Zylinderendstück 34, a pushing the Zylinderendstückes 34 into the cylinder 10, indicated by the point P, so absolutely sure prevented.

Of course, the invention is not limited to those shown and described

Embodiments limited. LIST OF REFERENCE NUMBERS

1 fluid connection

2 fluid hose

3 nipples

4 plate groove

4a hose groove

4b snap ring groove

4c O-ring groove

5 snap ring

5a hose ring

6 washer

7 O-ring

8 guide sleeve

9 stepped bore

9a stepped bore not guided

10 fluid cylinder part / hydraulic cylinder part

11 plate forked

11a plate annular

1 b slot plate

11c plate movable / swiveling

d Plate canted fork-shaped

1 e plate folded in an annular manner

11f swivel plate

12 screw

13 hose sleeve

13a compression sleeve

14 notch

15 screw hole

15a screw hole tolerated

15b screw long hole

16 levers

7 grid 18 grid hole

18a push pin

19 threads

20 footbridge

21 coding means

22 boundary edge

23 rib

24 punctures

25 spring

26 fluid coupling

27 clip

28 locking device

29 quick release handle

30 retaining pin

31 compression spring

32 nose

33 cylindrical surface

34 cylinder end piece

O drilling

T Tolerierungsmass

D inner diameter plate 11a

K insertion size plate 11a

Q Cross fork opening

P securing point

S pivoting direction

Claims

claims

Fluid connection (1) comprising a fluid hose (2) and a nipple (3), characterized

in that the nipple (3) comprises a hose sleeve (13) and at least one groove (4, 4b) or notch (14) or shoulder, wherein the fluid hose (2) by means of

Hose sleeve (13) is connected to the nipple that a plate (11, 11a - 11f) is in operative connection with the nipple (3).

Fluid connection (1) according to claim 1,

characterized,

in that the plate (11c, 11f) is pivotable (S).

Fluid connection (1) according to one of the preceding claims,

characterized,

in that the nipple (3) engages in a fluid cylinder part (10) or a fluid coupling (26).

Fluid connection (1) according to one of the preceding claims,

characterized,

in that a snap ring (5) or the plate (11, 11a-11e) engages into the groove (4, 4b) and thus the nipple (3) is held in the fluid cylinder part (10) or the fluid coupling (26).

Fluid connection (1) according to one of the preceding claims,

characterized,

in that the nipple is held in the cylinder part (10) or the fluid coupling (26) by means of the snap ring (5) and by means of the plate (11) and a connection means (12, 16).

Fluid connection (1) according to one of the preceding claims,

characterized,

that between the nipple and cylinder part (10) or fluid coupling (26), an O-ring (7) is arranged. Fluid connection (1) according to one of the preceding claims,

characterized,

in that the O-ring (7) is held by means of a washer (6), the washer (6) being held in particular by the snap-ring (5) or the plate (11, 11a-11e).

Fluid connection (1) according to one of the preceding claims,

characterized,

that the hose (2) and the nipple (3) by means of the hose sleeve, a

Hose groove (4a) and a hose ring (5a) is connected.

Fluid connection (1) according to one of the preceding claims,

characterized,

in that the connecting means is a screw (12) or quick-connection means (16, 17, 18a).

Fluid connection (1) according to one of the preceding claims,

characterized,

the nipple (3) is held in a guided stepped bore (9) by means of a guide sleeve (8) or, in the absence of a guide sleeve (8), is held tilt-proof and centered by means of the collar-shaped plate.

Fluid connection (1) according to one of the preceding claims,

characterized,

that the plate has a grid hole (18), which in a grid (17) on

Fluid cylinder part (0) or the fluid coupling (26) engages.

Fluid cylinder part (10) or fluid coupling (26) with a fluid connection (1), characterized

in that a fluid connection (1) according to one of the preceding claims is arranged on the fluid cylinder part (10) or the fluid coupling (26).

13. fluid cylinder part (10) or fluid coupling (26) according to claim 12

characterized, in that a pivotable plate (11c, 11f) is arranged on the fluid cylinder part (10) or the fluid coupling (26).

Fluid connection (1) according to one of the preceding claims,

characterized in that the snap ring groove (4b) constitutes a shoulder and the

Shoulder is formed in one piece from the nipple (3).