KR930003522Y1 - Handle regulation apparatus for spray gun - Google Patents

Abstract

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Description

Handle play control device for paint spray gun

1 is a perspective view of the present invention.

2 is a cross-sectional view of the present invention.

3 is an operating state of the present invention.

* Explanation of symbols for main parts of the drawings

1: spray gun handle 2: trigger

3: protrusion pipe 4: adjustment bolt

5: packing 6: cylinder body

7: injection tip 8: needle valve

9: stopper 10: shaft

11: bolt hole 12: protrusion

13: handle

The present invention relates to a trigger clearance control device for a spray gun for coating, which allows the operator to arbitrarily adjust the clearance angle of the trigger on site to promote the efficiency of the painting operation.

A spray gun for painting is a needle valve, which is pushed forward by a spring in the paint extrusion cylinder, and when the trigger is pulled, the needle valve opens the spray nozzle to spray the paint and when the hand is released from the trigger, the needle valve moves forward. The spraying of the paint is stopped by closing the spray nozzle, and the clearance distance (W) that the operator pulls and releases is the condition of the work (when the spraying operation and the stopping operation are frequently repeated during the painting operation). In the case of spray guns, it is necessary to adjust the play distance of the trigger.

However, in the past, there was no simple device to adjust the trigger play distance from the outside of the spray gun, so in special cases where the play adjustment is necessary, the play distance of the trigger can be changed by disassembling the needle valve in the cylinder and changing the advance distance of the needle valve itself. Was adjusted.

The present invention, unlike the structure of the conventional spray guns, such that the trigger play bolts are separately installed on the outside of the spray gun handle so that the trigger play can be easily adjusted according to the working conditions. Is as follows.

A handle 1 is formed at the rear side lower side of the cylinder body 6 of the spray gun, and a spray tip 7 is mounted at the tip of the cylinder body 6, and through the protrusion 12 formed at one point in the upper center. The needle valve 8 in the Y-type trigger 2 and the needle valve 8 in the cylinder body 6 are interlocked and interlocked, and the needle valve 8 retracts as the trigger 2 is pulled out. 13) is formed of the stopper (9) (9 ') of the T-shaped shaft (10) is rotated by the trigger (2) so that the projection of the shaft 10 protrudes to the lower two points of the cylinder body (6). In a conventional paint spraying device which is selectively caught on one side to prevent the retraction of the trigger or to maintain the retreat of the trigger to prevent the spraying of the paint or to maintain the continuous spraying of the paint, a cylindrical projection is provided on one side of the front surface of the handle (1). After forming the pipe (3), the long hole perpendicular to the projecting pipe (3) is screwed on the inner peripheral surface of the long hole And inserting the adjusting bolt 4 into the threaded pipe portion of the inner circumferential surface of the protruding pipe 3, and installing a through hole 11 on one side of the main surface of the screw pipe portion of the bolt to fill the packing 5 of silicon or rubber material therein. will be.

According to the present invention as described above, the needle valve 8 installed in the cylinder body 6 is pulled from the injection nozzle 7 'by pulling the trigger 2 with a finger in the position of holding the handle 1 of the spray gun with one hand. Since the paint in the cylinder is sprayed out by the projecting force of the high pressure compressor, and the trigger 2 is released, the needle valve 8 closes the spray nozzle 7 'by the holding force of the spring on the rear end side. do.

Under such an operation, when the trigger 2 is pulled to spray or stop paint, the play distance W of the trigger 2 is adjusted to be narrow for quick opening and closing of the needle valve 8. In this case, it is preferable to widen the clearance distance (W) so that the trigger (2) can be sufficiently pulled in the case where the continuous spraying takes a long time. In this case, the adjusting bolt (4) attached to the handle (1) side Turn to expose a lot outside, the play distance (W) of the trigger (2) is small, conversely, if the insertion bolt 4 is screwed in a lot, the play distance (4) becomes large.

At this time, the inside of the adjustment bolt 4 is packed (5) for maintaining the clamping force is to hold the adjustment state of the adjustment bolt (4) at a constant position at all times.

As described above, since the device for adjusting the play of the trigger 2 of the spray gun is installed outside the handle of the spray gun, the efficiency and convenience of painting work are further improved.

Claims (1)

In a conventional spray gun device in which a needle valve (8) built in the cylinder body (6) is retracted and paint is sprayed by pulling the trigger (2) in front of the handle (1), in front of the handle (1). The handle clearance control device for a spray gun for coating which is formed by adjusting the clearance distance (W) of the trigger (2) by forming a protrusion tube (5) and screwing the adjustment bolt (4) thereto.