FI67615B - SNABBKOPPLING TILL EN LEDNING FOER TRYCKBELAGT MEDIUM - Google Patents

Description

1 67615

Pressure medium line quick connector. - Snabbkoppling account and led to a medium medium.

The invention relates to a quick connector for a line of pressurized medium, comprising a tubular body, a lever pivotally mounted on the body which pivots the valve member, and coupling means at the front end of the body for releasably engaging the connection plug, the coupling means comprising a transfer sleeve surrounding the front end of the body.

In such known pressurized air line quick connectors have a problem that the connection is opened, the working side pressure is released just a loose with great force through the plug, wherein the wire may come off the hand of impacting the environment and cause damage.

In order to avoid this problem, the object of the invention is to provide a quick connector which can not be opened before the working side pressure is able to discharge in a controlled manner even by using the connected state of the connector to the atmosphere.

This object is achieved by the invention on the basis of the features set out in the appended claims.

In the following, an embodiment of the invention will be illustrated with reference to the accompanying drawings, in which Figure 1 shows a quick connector according to the invention in longitudinal section with the connector connected and the valve in the open position.

Figure 2 shows a top view of the same quick connector.

Figure 3 schematically shows the relative positions of the different parts of the quick connector with the valve closed and the connection plug removed.

2,67615

Fig. 4 shows, in accordance with Fig. 3, a situation in which the plug has been inserted with the valve still closed.

Fig. 5 shows a situation in which the operating lever 1 is turned 15 ° to move the transfer sleeve 4 to the closing position of the opening 14 before the valve member 12 is in the open position.

Fig. 6 shows a situation in which the valve 12 is fully opened by turning the lever 1, the other parts remaining in the same position as in Fig. 5.

The quick connector comprises a one-piece tubular body part 10 in which the operating lever 1 is pivotally mounted. Lever 1 pivots a spherical valve member 12 which closes and opens the supply of pressurized medium, e.g. compressed air, from the inlet side to the outlet side. Inlet conduit associated with the left-hand frame 10 of the head and expenditure management related to a connector plug 11. The body 10 has openings acting coupling means for the balls 9 which plug 11 is in place to sink the plug 11 into the groove 15 in the sliding sleeve 4 to prevent balls 9 from rising groove 15, whereby the plug 11 remains in place. The end of the plug 11 rests against a seal 8 in a sleeve 13 pushed by a spring 7. Between the vent brick member 12 and the seal 8 there is an outlet 14 in the body, which in the case of Fig. 1 is closed by the seal 6 of the transfer sleeve 4.

The pin 2 in the drive lever 1 engages the sliding groove 3 of the transfer sleeve 4, whereby the shape of the sliding groove 3 determines the axial position of the transfer sleeve 4 at different turning angles of the lever 1. In addition, the spring 5 pushes the transfer sleeve 4 towards the engaging position.

The quick connector works as follows.

In the basic position according to Figure 3, the inlet side is pressurized and due to the position of the lever 1 the ball 12 is closed. The pin 2 engages a bend at the end of the groove 3, which locks the lever 1 3 67615 in this zero position, i.e. a position turned 90 ° to the side. The outer surface of the sleeve 13 keeps the balls 9 extended, whereby the sleeve 4 remains in the rear position. Figure 4 shows the connection of the connecting plug. The plug 11 is inserted into the body 10, whereby the seal 8 seals the gap between the body 10 and the plug 11. The sleeve 13 moves under the balls 9, allowing them to drop into the groove 15 of the plug 11. At the same time, the spring 5 pushes the sleeve 4 over the balls 9, thus locking the plug 11 in place. As the sleeve 4 and the associated groove 3 move, the locking between the bend at the end of the groove 3 and the pin 2 opens, whereby the lever 1 can be turned. During the first 15 ° turn (Fig. 5), the sleeve 4 slides forward so that the seal 6 closes the outlets 14 in the body 10 while the ball 12 is still closed. As the rotation of the lever 1 continues, the ball 12 begins to open, being fully open when the lever 1 is parallel to the valve body (Fig. 6). During the pivoting movement of the lever 1 between Figures 5 and 6, the sleeve 4 no longer needs to move, but the pin groove lock 2, 3 holds it in place.

The plug 11 is removed as follows. When the lever 1 is turned towards the zero position according to Fig. 3, the ball 12 begins to close, being completely closed when the lever is 15 ° away from the zero position (Fig. 5). Continuing the turning, the pin-groove combination 2, 3 moves the sleeve 4 backwards so that the seal 6 recedes in front of the outlet openings 4, whereby the pressure remaining on the outlet hoses and implements on the outlet side is released through the outlet openings 14 to the outside air. Turning the lever 1 to the zero position according to Fig. 4 does not yet release the plug 11, but the lever 1 must be turned e.g. 10 °, so that the balls 9 can rise and the spring 7 pushes the plug 11 out and moves the sleeve 13 back position. When the lever 1 is removed, it moves to the zero position, i.e. 90 ° to the side.

Claims (5)

1. Quick coupling in a conduit for pressure subjected to medium, which includes a tubular body (10), a lever (1) rotatable to the body, which drives a valve member (12), which opens and closes the valve, and in the front of the body coupling means (4, 9) for detachable coupling of a connecting plug (11), to which the coupling means hear a forward and surrounding displacement hole (4) of the body, characterized in that the rotary movement of the lever (1) is arranged to be forced-controlled the displacer (4) which reads and loosens the connecting plug (11), and that between the valve member (12) and the sealing means (8) of the connecting plug in the body (1) there is an opening (14) which is closed in the open position by the valve. the seal (6) of the displacement member (4), but in the closed position of the valve, before the displacement of the displacement member to the releasing plug (11), release the seal (6) away in front of the opening (14) and allow the pressure on the outlet side to a is welded to the outer atmosphere. 2. Quick coupling according to claim 1, characterized in that the interaction between the displacement member (4) and the lever (1) consists of a sliding bar (3) and a pin (2), the shape of the sliding bar determining the axial position of the shifting bolt (4) at the lever (1). ) different angles of rotation. Quick coupling according to claim 1 or 2, characterized in that the displacement member (4) with a spring (5) is clamped against the coupling position even in the closing position of the lever (1) valve member (12), whereby the coupling of the plug (11) can be detached. by swinging the lever (1) against the force of said spring (5) past said basic position. Quick coupling according to claim 3, characterized by a spring-loaded hole (13) located within the body (1), which has a seal (8) for the end of the plug (11) and which hole (13) when the plug (11) is detached , with its outer sheath pouring cup-