HU222004B1 - Joint valve for a central gas unit - Google Patents

Abstract

The present invention relates to a plug-in valve for a central, in particular medical, gas supply device, the valve housing of which, offset on the valve housing shaft, has paired compression-loaded locking elements and a spring-loaded compression fitting. and wherein the first pair of locking elements is a blocking locking surface running along the tip of the plug connector, on the other hand the pressure ring is adapted to achieve a waiting position between the two pairs of successive pushing movements to remove the plug connector. the locking element is in the locking position of the locking surface of the plug connector. A valve with a plug connection according to the invention is characterized in that the second locking elements (19, 20) between the inner side of the pressure ring (9) and the locking back (31) of the locking element (19,20), the plug connection (15) (21) is designed as a locking lever with a locking hook (37), while during the second push movement the release element (21) of the plug connector (15) is released and the plug connector (15) is removed, the locking element (19, 20) and the associated spring element (36) deformation of the pressure ring (9) is formed over the hook (37) of the locking lever. ŕ

Description

The plug-in valve according to the invention is characterized in that the second locking elements (19, 20) between the inner side of the pressure ring (9) and the locking end (31) of the locking element (19, 20) prevent the first sliding movement of the pressure sleeve (9). 15) are formed as a locking lever with a locking hook (37), while during the second sliding movement, the locking element (19, 20) and a locking member (19, 20) are disposed to release the locking surface (21) of the plug connector (15) and deformation of the associated spring member (36) is formed beyond the locking lever hook (37) of the pressure ring (9).

The length of the description is 12 pages (including 6 pages)

A A

4b. figure

HU 222 004 B1

HU 222 004 Bl

BACKGROUND OF THE INVENTION The present invention relates to a plug-in valve for a central, particularly medical, gas supply apparatus having a valve body, pressure-locking members disposed offset along a longitudinal axis of the valve body and a spring-loaded pressure ring 5 having a pressure ring is adapted to receive and arrest a socket-shaped plug connector, and wherein the first pair of locking members is blocking the arresting surface which surrounds the tip of the plug connector, and in the stand position, the first pair of latches is released, while the second pair of latches is the plug connector the retaining surface is in the locking position.

DE 3133 772 C2 discloses a plug-in valve for central medical gas distribution devices having two spring-loaded locking members disposed on a longitudinal axis and offset from roller pairs or ball baskets. In order to prevent unintentional ejection caused by gas pressure 25 when disconnecting the associated plug connectors from the valve housing, the pusher sleeve has two separate pushing motions, so that it shifts first from the working position to a waiting position without interrupting the gas. after a sliding movement, the plug connector is finally released. This is achieved by having the guiding grooves formed in the valve housing, which have a stop surface defining a locking member for securing the working position of the plug assembly and a co-axial stop surface which defines a locking surface which deflects the sliding movement of the slide sleeve. resuming the sliding movement of the slider after the same locking means return to their locking position. 40

In this case, it is a relatively expensive valve construction.

It is an object of the present invention to provide a plug-in valve that provides a stop position for the plug in the aborted gas supply while interrupting the delivery of the gas and, in addition, provides significant component and cost reduction over the known structure.

The object of the present invention is achieved by a plug-in valve having a valve body 50 which is offset on the longitudinal axis of the valve body and has a pressure-bearing locking member disposed in pairs opposite to each other and having a pressure ring with a 55, wherein the first pair of latches are provided for blocking the arresting surface around the tip of the plug, and the pressure ring is designed to provide a waiting position between two successive sliding movements of the plug connector, wherein In position 1, the first pair of latches is released, while the second pair of latches is the latching position for the locking surface of the plug connector characterized in that the second locking members are formed between the inner side of the pressure ring and the locking back of the locking member to prevent the first sliding movement of the press sleeve, in the form of a locking lever with a cam cam to lock the locking surface of the plug connector and, except for the plug connector, for deforming the locking member and a corresponding spring member, the pressure ring is formed beyond the hook 15 of the locking lever.

In a preferred embodiment of the plug-in valve according to the invention, the hook of the second locking element as a second locking element is formed with the spring element to form an elastic structure connected to the back of the locking device 20 with its stopper. the stopper also has a locking spring in the waiting position.

In another preferred embodiment of the plug-in valve according to the invention, the locking element - the locking lever - is provided with at least one guide pin which guides the locking housing and the stop.

In a further preferred embodiment of the plug-in valve according to the invention, the second movement of the pressure ring and the release of the spring member connected thereto, designed for sewing.

In a preferred embodiment of the plug-in valve of the present invention, the compression spring of the pressure ring is in a tensioned position after the plug connector has been removed.

In all preferred embodiments of the plug-in valve of the present invention, the second locking member formed as a locking lever is made of plastic, preferably polyamide, and the valve body and pressure ring are made of PBT (polybutylene terephthalate).

The plug-in valve according to the invention is an example! Embodiments of the invention are described in detail with reference to the accompanying drawings, in which la. Fig. 11b is a top plan view of the plug-in valve according to the invention in its initial position, without the insertable plug-in connector shown in Fig. 1b. 1a. Figure A-A is a cross-sectional view of the plug-in valve shown in Figs. Fig. 4A is a side view of a plug-in valve according to the invention in its initial position, • ".4 * ..:.). αΜ ^ '| . ". Feifei) :,

HU 222 004 Bl ld. Figure 3 is the illustration. Fig. 6A is a sectional view taken along the K-K section of the plug-in valve of Fig. a

2a. Fig. 4A is a top plan view of a plug-in valve according to the invention, without the plug,

2b. 2a. Figure A-A is a sectional view taken along section A-A of Figure 1 with the plug inserted in the standby state;

3a. Fig. 4A is a top plan view of a plug-in valve according to the invention without a plug connector;

3b. 3a. Figure A-A is a cross-sectional view with the plug inserted and in working position,

4a. Fig. 4A is a top plan view of a plug-in valve according to the invention without a plug, a

4b. 4a. Figure A-A is a sectional view taken with the connector in the unlocking position,

5a. Fig. 4A is a top plan view of a plug-in valve according to the invention, without a plug

5b. 5a. Figure A-A is a cross-sectional view taken along section A-A with the connector to be removed;

6a. Fig. 4A is a front elevational view of a plug-in valve according to the invention, with a plug connector,

6b. 6a. Figure A-A is a sectional view taken along section A-A, a

Fig. 7 is a perspective view of a second locking member of a plug-in valve of the present invention.

The la. Fig. 4A is a top plan view of a plug-in valve according to the invention, and it is clear that the plug-in valve 1 according to the invention is surrounded by a valve body 2 having a Dutch nut 4 on its backside; for connection to a fixture. The gas conveying assembly comprises as a sealing member an O-ring 5 whose axis is concentric with the longitudinal axis 3 of the plug-in connection 1.

The lb. 1a. Figure A-A is a sectional view of a stepped sectional plane A-A shown in Figs. Inside the pressure ring 9 are opposed tongue-shaped casing segments 26 arranged symmetrically to the longitudinal axis 3 and sliding along the outer surface of the valve body 2; these sheath segments 26 seal the diametrically opposed recesses in the valve body 2 when the pressure ring 9 is offset. The recesses have locking members 19 and 20 for locking the plug connector (not shown) to be inserted into the front opening 25 of the valve body 2 in the waiting position. Also shown in the valve housing 2 is a groove 28 which receives the first pair of locking elements 18, which locking elements 18 are preferably formed as locking pins. The locking elements 18 are clamped against the direction 14 by a pressure body 8 loaded with a compression spring 29 so that they provide an axial and radial direction of the plug-in connector to be introduced in a conical, oblique groove 28 which is inclined at an angle to the longitudinal axis 3.

A spring housing 6 is screwed along the longitudinal axis 3 in the connection area 7. In the spring housing 6, inlets 12 are provided in the radial direction for gas supply of the plug connector to be inserted along the longitudinal axis 3 in the direction 14.

That's down. Fig. 2A shows a side view of the plug-in valve 1, where the plug-in connector is inserted in the direction 14 and the relative position of the union nut 4, the compression spring 29 and the pressure ring 9 and the spring housing 6 are shown.

See ld. Figure 3 is the down. Figure K-K. a section taken along the intersection plane. See ld. Fig. 2A shows a part of the valve body 2, in which the locking elements 19, 20 are locked in the recesses 27 by locking pins 23, 24 in the grooves of the valve body 2, which are formed radially relative to the longitudinal axis 3. Note that the locking pins of the first pair of locking elements are not shown here.

2a. Fig. 3A also shows a rear view of a plug-in valve according to the invention, from the view of the user, showing the O-ring 4 and the O-ring 5 extending along the longitudinal axis and a screw-on gas supply nozzle , a cam 42 is located on the rear face of the valve body 2.

2b. 2a. Figure A-A is a sectional view taken along the section plane A-A, which is a stepped section where section A3 extends horizontally and section 3-A runs in a vertical direction. Thus, it is possible to recognize the plug connector 15 introduced along the direction 14 into the front opening 25 having a circumferential, truncated conical locking surface 21, thereby locking the locking member 19 - and not shown here - with the locking back 31. The locking element 19 itself is completely free of voltage. The gas supply is interrupted in the 6 spring housings. 2b. It can be seen from Fig. 11 that the locking elements 18 are pressed against the direction by a pressure body 8 loaded with a compression spring 29, whereby these locking elements 18 are displaced in the direction 14 when the plug-in connector is introduced, so that the grooves 28 are Due to their oblique expansion direction, the valve housing 2 is in an open position for insertion and removal of the plug connector. The compression ring 9 is shown in longitudinal section along with the compression spring 13. Plug connector 15

EN 222 004 Β1 is provided with a sleeve-shaped tip 16 for gas absorption.

3a. 2a. As shown in Fig. 6A, it is a top plan view of the plug from the user in the working position. 3b. 3a. Figure A-A is a cross-sectional view of the planar plane A-A - stepped intersection plane.

3b. As illustrated in FIG. 6B, the plug 15 engages with a sleeve-like tip 16 to move the gas delivery valve 34 in the direction 14 to allow gas to pass through the inlet 12 and the gas delivery opening 32 to the plug 15. Simultaneously, the locking member 18 pre-tensioned by the compression body 8 and the compression spring 29 lies directly on the locking surface 21 of the connector 15 so that the self-reinforcing blocking of the locking member and locking surface 21 results in the load being blocked by the tapered groove 28. This is an exceptionally high security locking lock. 20

The circumferential locking surface 21 of the plug connector 15 in the working position is shown in FIG. 3A, (viewed along the intersection plane A-3), is inactive.

The outermost surface 43 of the surrounding arresting surface 25 of the plug connector 15 holds a hook 37 in an outwardly displaced position while the plastic locking members 19 and 20 are pivoted in a hinge 22.

For better sealing of the plug-in connector 15, a circumferential sealing ring 35 (preferably an O-ring) is disposed around the tip 16.

4b. 4a. 4A is a sectional view taken along sectional plane A-A in FIG. 4A, which is a stepped section with the upper section A-3 extending in a horizontal plane while FIG. 4b. Fig. 4A is a sectional view taken from the vertical 3-A plane.

As shown in FIG. The clamping of the working position by the clamping of the pressure ring 9 in Figure 14 is unlocked when the first pair of locking elements 18 is already inactive, while the locking surface 21 of the plug connector 15 is now thickened by the locking surface 19 (or the locking member 20) not shown here is pushed against the locking back 31. 4b. FIG. 6A shows the plug-in valve 1 in the unlocking position when the gas is cut off. The user pushes the pressure ring 9 and thereby the locking member 18 in the direction 14, which means "pushing back" from the user's point of view. The movement of the pressure ring 9 is limited by the hook 37 of the locking member 50 with symmetrically arranged tongue-shaped jacket segments 26. As a result of the gas pressure and the spring on the valve lifter of the spring housing 6, the plug connector 15 is moved outwardly and collides with the locking lug 31 of the locking elements 19 and 20 respectively.

The locking member 19 is guided upwardly by the recess 27 as the recess 55 in the valve housing 2 and is defined in this radially directed movement by the casing segment 26 of the pressure ring 9.

The plug connector 15 cannot be removed in the opposite direction 14, since the locking member 19 blocks the plug connector 15 by its locking surface 31 on the locking surface 21 of the locking member 31 so that the plug connector 15 is no longer movable outwardly. it is protected against sudden pulling out or fitting.

The plug connector 15 is again in the standby position as shown in FIG. 2a. and 2b. Figs. The user then releases the pressure ring 9 while pressing the pressure ring 9 forward. The hook 37 of the locking elements 19 and 20 is released by the casing segment 26 of the pressure ring 9, and when the tensioning force of the hook 37 on the elastic member connected thereto is released, it rotates in the hinge 22 and lies back into the recess of the valve body.

5a. and 5b. 3a, 3b. or 4a, 4b. 3A, a side view and an AA sectional-stepped sectional planar section, respectively, where a position for removing the plug of the plug-in valve is achieved as soon as the pressure ring 9 is pushed backwards as far as possible and the pressure ring 9 is released. a hook 37 for the locking elements 19 and 20; the locking member 31 unlocks the locking surface 21, since the locking member 19 in the valve body 2 has the recess 27 facing upwards; guides and in this movement the groove-shaped recess 39 in the pressure ring 9 can no longer stop it (as opposed to the representation of Fig. 4b). The plug connector 15 can now be removed in this position, with the locking elements 18 returning to the starting position and the locking elements 19 and 20 returning to the initial position by spring forces. The release ring 9 returns to its initial position after release of the force exerted on it.

6a. Fig. 4A is a top plan view of a plug-in valve 1, showing grooves 39 in the form of symmetrically opposed grooves. 6b. 6a. Figure A-A is a sectional view. 6a. 6b and 6b. 1 to 5, both locking elements 19 and 20 are recognizable, which with their locking lugs 31 still rest on the locking surface 21 of the plug connector 15, but the hook 37 is otherwise exposed by the jacket segments 26 so that the plug connector 15 can be lifted. Note that in Fig. 6b. Figure 5b is substantially the same as Figure 5b. FIG.

Figure 7 is a perspective view of a locking member 19 used as one member of a second pair of locking members. The locking 31 required for blocking the locking surface 21 of the plug connector 15, the guide pins 23 and 24 extending in the recess of the valve body 2, the spring 33 are clearly visible. The hook 37 is connected to the locking member 31 and the abutment surface through the hinge 22, while the spring member 36 of the hook 37 is integrated into the locking member.

The locking elements 19, 20 are preferably made of plastic (polyamide), the elastic property being particularly important for the hinge 22 and the springs 33 and 36. The functions described here can also be implemented with locking elements having a rigid design,

EN 222 004 Β1 as the locking elements described. It should be noted, however, that stiffer locking elements require greater actuating power and may also have placement problems.

Claims (9)

PATENT CLAIMS A plug-in valve for a central, particularly medical, gas supply device having a valve body (2), a pair of pressure-locking elements (18, 19, 20) offset on the longitudinal axis (3) of the valve body (2) and a spring-loaded pressure ring (9); the pressure ring (9) having a front opening (25) and adapted to receive and arrest a plug connector (15) having a gas receiving sleeve tip (16) along the longitudinal axis (3) through the front opening (25), and wherein a first pair of locking elements (18) for blocking the arresting surface (21) extending along the tip (16) of the plug connector (15), and the pressure ring (9) is configured to achieve a waiting position between two successive sliding movements to remove the plug connector (15); the first pair of locking elements (18) is also released in the waiting position, while the second pair of locking elements (19, 20) is in the locking position of the locking surface (21) of the plug connector (15), characterized in that the second locking elements (19, 20) prevent the first sliding movement of the sleeve (9); between the inner side of the locking member (19, 20) and the locking latch (31) of the locking member (19), in the form of a locking lever with a locking hook (37) blocking the locking surface (21) of the plug connector ) and to remove the plug connector (15), to deform the locking member (19, 20) and the associated spring member (36), the pressure ring (9) is formed beyond the locking hook hook (37). Plug-in valve according to claim 1, characterized in that the hook (37) of the second locking element (19,20), together with the spring element (36), is provided with a locking back (30) via a hinge (22). 31) is formed to form a connected elastic structure. Plug-in valve according to Claim 2, characterized in that the locking elements (19, 20) of the locking elements (19, 20) have Further on the distal side 10 (31), in addition to the stop (30), there is a spring (33) for blocking the aeration surface (21) in the waiting position of the plug connector (15). Plug-in valve according to Claim 2 or 3, characterized in that it comprises locking elements The locking arms 15 (19,20) are provided with at least one guide pin (23, 24) between the locking member (31) and the stop (30) in the grooves (28) of the valve body (2). 5. Plug-in valve according to one of Claims 1 to 3, characterized in that the second movement of the pressure ring (9) and the release of the spring element (36) connected thereto, the hook (37) of the locking elements (19, 20), the plug connector (15). ), disposed on the groove-shaped recess (39) of the clamping segment (9), extending away from the locking surface (21) of the plug connector (15). 6. Plug-in valve according to any one of claims 1 to 3, characterized in that The compression spring (13) of the pressure ring (9) is in a tensioned position after the plug connector (15) has been removed. 7. Plug-in valve according to any one of claims 1 to 4, characterized in that the second locking elements (19, 20) are made of plastic, preferably polyamide. 8. Plug-in valve according to any one of claims 1 to 3, characterized in that the valve body (2) and the pressure ring (9) It is composed of PBT (polybutylene terephthalate).