JPS5819443Y2 - Air gauge handle with valve used for air micrometer - Google Patents

Description

[Detailed description of the invention] This invention is a handle for an air gauge with a valve used in an air micrometer, specifically, the air flow path is opened only when the user grasps the handle when using the air micrometer. Related to a handle for an air gauge with a valve attached.

As shown in FIG. 1, a conventional air gauge handle is a single ring-shaped handle with an air gauge mounting thread 1 provided at the tip and a through hole 2 drilled in the axial direction. A vinyl hose for passing air is connected from the air micro main body through a through hole 2 of the air gauge handle to a hose nipple fixed to the tail end of the air gauge.

However, although the main body of the air micro is generally equipped with a cock to open and close the air flow path, it is troublesome to operate the cock each time the air micro is not in use, so the air is always connected to the nozzle of the air gauge. It is common for the gas to be left in the state of being discharged from the air, which is undesirable due to the power loss of the air source and the noise generated when the air is discharged from the nozzle of the air gauge.

This invention is designed to prevent the air from being left in the discharged state when the air micro is not in use.
To provide a handle for an air gauge in which a valve is attached to the handle for air gauges so that an air passage is opened only when a user grips the handle when using an air micro.

Hereinafter, an embodiment of the handle for an air gauge with a valve used in an air micrometer according to the present invention will be described with reference to FIG.

Reference numeral 11 denotes a joint for an air gauge, and an air passage 12 is bored through the center of the interior in the axial direction, and a threaded part 13 for attaching the air gauge is provided at the center of the tip.
In addition, a hose nipple 14 communicating with the air flow path 12 is driven and fixed in the center of the tail end.

Reference numeral 15 denotes a cylindrical handle member, and the handle member 15 is threadedly coupled to the gauge joint 11 in alignment with the gauge joint 11, and the coupled body has an outer diameter and a length suitable for gripping with one hand. It is shaped like a single shaft.

The handle for an air gauge with a valve according to the present invention has the above-described structure further provided with a ball valve and its opening/closing device, which will be described below.

The inner diameter of the air flow path from the middle to the rear of the air flow path 12 in the gauge joint 11 is enlarged to form a conical surface 16 between the small diameter portion and the large diameter portion, and a ball is inserted into the large diameter portion. 17, and its ball 17 and hose nipple 14
A coil spring 18 is interposed between the front end surface of the ball valve and the ball valve.

In the ball valve, the ball 17 is normally pressed against the conical surface 16 by the spring 18 to close the air passage 12.

Reference numeral 19 denotes a push plate narrower than the handle member 15, whose tail end is fixed near the outer tail end of the handle member 15 with large and small screws 20, and whose front end is attached to the handle member 15.
It extends to the outside of the gauge joint 11 parallel to the outer surface of the gauge joint 11.

The front end of the push plate 19 can be elastically held against the outer surface of the gauge joint 11 when the combined body of the handle member 15 and the gauge joint 11 is gripped.

On the other hand, from the outside of the gauge joint 11, the air flow path 12
A pin 22 is inserted into a through hole 21 extending to the front end of the conical surface 16 of
is slidably inserted, and when the ball 17 is pressed toward the conical surface 16 by the spring 18, the inner end of the pin 22 is such that it lightly contacts the ball 17, and the above-mentioned As such, the ball valve remains closed.

However, if the user of the Air Micro
5 and the gauge joint 11 and push down the front end of the push plate 19, the inner end of the pin 22 moves the ball 17 backward against the pressing force of the spring 18, and the ball Open the valve.

To operate the air gauge handle with a valve according to the present invention, as with conventional air gauge handles, the desired gauge is screwed into the threaded portion 13 at the tip of the gauge joint 11, and the tail of the hose joint 11 is Preparation is complete by connecting the air supply hose to the hose nipple 14 at the end.At this time, the ball 17 of the ball valve is pressed against the conical surface 16 by the spring 18, so the air flow path is closed. There is almost no air leakage.

Then, when using the air micro, hold this handle with one hand and push down the front end of the push plate 19 with that hand, the inner end of the pin 22 will resist the spring 18 and move the ball 17 backwards. The ball valve becomes open and air flows out smoothly, allowing the air micro to continue measuring.

If you let go of the handle when the measurement is complete, the ball valve will automatically close and the air outflow will be interrupted.

The air gauge handle with a valve according to the present invention, as mentioned above, is equipped with a valve that can be operated with one hand on the conventional air gauge handle so that air flows out only when necessary, that is, each time a measurement is made. There is no need to operate the cock on the air micro body to shut off the air each time the micro is not in use, and it also prevents loss of power from the air source and improves unfavorable environments such as noise emitted from the nozzle of the air gauge. be able to.

[Brief explanation of drawings]

FIG. 1 is a vertical cross-sectional side view of a conventional air gauge handle, and FIG. 2 is a vertical cross-sectional side view of an embodiment of the air gauge handle with a valve according to the present invention. 1... Air gauge mounting thread, 2...
...Through hole, 11... Gauge joint, 1
2...Air flow path, 13...Air gauge mounting neck, 14...Hose nipple, 15...Handle member, 16... ... Conical surface, 17 ... Ball, 18 ... Spring, 19 ... Push plate, 20 ... Large and small eagle, 21 ... ...Through hole, 22...pin.

Claims (1)

[Scope of utility model registration request] A gauge joint having an air gauge mounting thread provided at the tip and a hose nipple fixed to the tail end, and having an air passage passed through it in the axial direction;
A cylindrical handle member is connected to the gauge joint in alignment with the axial direction, and a ball is provided in the middle of the air flow path in the gauge joint, and a ball is normally formed in the air flow path by a spring. a ball valve that is pressed against a conical surface to close its air flow path; and a push plate having one end fixed to the outside of the handle member and the other end extending to the outside of the gauge joint. a valve opening/closing device that opens the ball valve against the spring through a pin slidably inserted into a through hole extending from the outside of the gauge joint to the air flow path when pressed; An air gauge handle with a valve used in an air micrometer.