JP2834089B2 - High pressure gas container - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a high-pressure gas container.

[0002]

2. Description of the Related Art Conventionally, a high-pressure gas container in which a cap is detachably mounted on a neck fixed to the top of a container body is well known, as shown in FIG. Is a neck, 23 is a cap, 24 is a valve detachably attached to the neck, and the cap 23 is a neck.
It is screwed to 24 by a screw portion 26.

[0003]

However, such a high-pressure gas container is rotated with the cap 23 when the cap 23 is removed and attached at the time of filling or discharging the gas, and is screwed to the neck 22. The engagement must be released, and this operation is extremely difficult, and in addition, there are problems that the mounting may not be performed completely.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems of the conventional high-pressure gas container, and to easily remove and attach the cap at the time of filling or discharging the gas, and at the same time, mount the cap. Is to provide a high pressure gas container that is completely performed.

[0005]

According to the present invention, in order to achieve the above object, in a high-pressure gas container, the invention according to claim 1 is characterized in that a cap is attached to a neck fixed to the top of the container body. In a high-pressure gas container that is detachably mounted, a locking pin in the radial direction is protruded from the upper outer periphery of the neck, and a protruding portion that protrudes in the radial direction is formed on an opening edge of the cap. A locking notch is provided at a position facing the stop pin. The locking notch has a vertical notch into which the locking pin can be fitted, and a horizontal notch connected to the upper end of the vertical notch horizontally. A lock pin is slidably fitted on the top of the protrusion above the vertical cutout so as to be vertically movable, and a spring for urging the lock pin downward is provided on the protrusion. Things.

According to a second aspect of the present invention, in the first aspect of the present invention, the lock pin has a downwardly inclined surface on a lower side surface facing the locking pin.

[0007] The invention described in claim 3 is the first or second invention.
In the invention described in (1), a cam that engages with a spring for urging the lock pin in the downward direction and moves the lock pin up and down is provided on the projecting portion of the cap.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the embodiment of the present invention shown in FIGS. 1 to 5, 1 is a container body, 2 is a neck, and 3 is a cap, which are configured in the same manner as the above-mentioned conventional one.

In the above structure, a locking pin 4 in the radial direction is protruded from the outer periphery of the upper portion of the neck 2, and a protruding portion 6 protruding in the radial direction is formed on the opening edge of the cap 3. A locking notch 7 is provided at a position facing the locking pin 4. The locking notch 7 has a vertical notch 8 into which the locking pin 4 can be fitted, and a horizontal notch 8 at the upper end of the vertical notch 8. And a lock pin 11 is vertically slidably fitted in a through hole provided at the top of the protrusion 6 above the vertical cut 8, and the lock pin 11 is locked. A lower inclined surface 12 is provided on a lower side surface facing the pin 4, and a spring 13 for urging the lock pin 11 downward is provided on the protrusion 6. In this embodiment, a pair of locking pins 4 of the neck 2 are provided symmetrically in the diametric direction, but this number is not limited to this, and may be another number. The number of locking notches 7 of the cap 3 is also corresponding to the number.

A description will be given of a state in which the cap 3 is mounted on the neck 2 in the above-described configuration. As shown in FIG. 3, after positioning the axis XX of the vertical notch 8 of the locking notch 7 of the cap 3 so as to pass through the center of the locking pin 4 of the neck 2, the cap 3 is moved to the neck 2. And moved down to the position shown in FIG. Due to this downward movement, the locking pin 4 is relatively opposed to the vertical notch 8 against the urging force of the spring 13.
At this time, one side engages with the lower end surface of the lock pin 11 urged downward by the spring 13 to move the lock pin 11 upward.

When the locking pin 4 reaches the position facing the lateral cutout 9 as shown in FIG.
By the pressing force of the lock pin 11 due to the urging force of the thirteen, a force acts to move the lock pin 11 downward to move the locking pin 4 in the lateral cutout 9 to the left. In this way, the lock pin 11 moves down, and the locking pin 4 is moved leftward in the lateral cutout 9. At this time, the rightward reaction force by the locking pin 4 is applied to the lock pin 11. The lock pin 11, that is, the cap 3 provided with the lock pin 11 is rotated in the direction of the solid arrow so that the axis of the lock pin 11 is at the YY position in FIG. When the end of the lateral cutout 9 is reached, the cap 3 is stopped, and the rotation of the cap 3 is also stopped, whereby the mounting of the cap 3 on the neck 2 is completed.

As described above, when the lock pin 11 moves down and the locking pin 4 moves inside the lateral cutout 9, the lock pin 11
Since the downwardly inclined surface 12 is provided on the lower side surface of the lock pin 4 and the lock pin 4 is in contact therewith, the lock pin 11 is guided by the lock pin 4 to move downward, and pin
Although the downward movement of the cap 11, that is, the rotation of the cap 3, is performed smoothly, such a downward inclined surface 12 may not be provided.

As described above, the cap 3 is attached to the neck 2 at this time by a simple operation in which the worker holds the cap 3 and pushes down the vertical cutout 8 in alignment with the locking pin 4. It is performed smoothly and the mounting of the cap 3 is completed. In this state, one side of the locking pin 4 of the neck 2 is locked in the lateral cutout 9 of the cap 3, and the opposite side of the locking pin 4 is engaged with the lock pin 11. Is restrained by the spring 13, so that the cap 3 does not come off from the neck 2 unnecessarily.

When the cap 3 mounted in this manner is removed from the neck 2, the lock pin 11 is moved upward against the urging force of the spring 13 and the cap 3 is moved in the opposite direction to the dotted line in FIG. It will be moved in the direction of the arrow and removed.

FIGS. 6 to 12 show a second embodiment of the present invention. In this embodiment, many parts are configured in the same manner as in the first embodiment. The same reference numerals are given and the description is omitted, and different portions are mainly described.

This embodiment is different from the first embodiment in that a cam 14 which engages with a spring 13 and moves the spring 13 up and down is provided on the projection 6. The cam 14 is mounted on a rotation shaft 16 rotatably supported by the protrusion 6, and a handle 17 is mounted on the rotation shaft 16.

When the cap 3 is mounted on the neck 2 as described above, the cam 14 is positioned at a position where the lower part thereof comes into contact with the spring 13 as shown in FIGS.
The same operation as in the embodiment is performed.

When the cap 3 thus mounted is removed from the neck 2, the worker in the first embodiment lifts the lock pin 11 against the urging force of the spring 13 with the lock pin 11. In the second embodiment, the worker handles
The first embodiment is different from the first embodiment in that the cam 14 is rotated to the position shown in FIGS. 11 and 12 by operating the cam 17 and the spring 13 is moved upward by its high portion. It will be easier.

[0019]

The present invention is as described above. In the high-pressure gas container, the invention according to claim 1 is characterized in that a locking pin in the radial direction is protrudingly provided on the outer periphery of the upper portion of the neck, and the opening edge of the cap is opened. A protrusion is formed at a position protruding in the radial direction and a notch is provided at a position of the protrusion opposite to the locking pin. The locking notch has a vertical notch into which the locking pin can be fitted, A horizontal notch continuously provided horizontally at the upper end of the horizontal notch, and a lock pin is slidably fitted on the top of the protruding portion above the vertical notch so as to be vertically movable; A spring is provided to urge the cap downward when filling or discharging gas. The cap locks into the lateral cutout and the opposite side locks Engages the locking pin because it is suppressed by the spring, the cap is an effect that is not to vain detached from the neck.

According to a second aspect of the present invention, in the first aspect of the present invention, the lock pin has a downwardly inclined surface on a lower side surface facing the locking pin, so that the lock pin can be attached to the neck when the cap is mounted on the neck. When the lock pin moves down and moves in the lateral notch, the lock pin abuts on the downward inclined surface of the lock pin, and the lock pin is guided by the lock pin and moves downward. Thus, there is an effect that the downward movement of the lock pin, that is, the rotation of the cap is performed smoothly.

The third aspect of the present invention is the first or second aspect.
In the invention described in the above, since a cam that engages with a spring for urging the lock pin downward in the projection of the cap and moves it up and down is provided, when removing the attached cap from the neck, In addition, the operator can operate the cam to move the spring upward, which has the effect of facilitating the cap removal operation.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a cap according to a first embodiment of the present invention, taken along line 1-1 in FIG. 3;

FIG. 2 is a plan view of the neck according to the first embodiment.

FIG. 3 is a front view showing an initial state when the cap is attached.

FIG. 4 is a front view showing a middle stage when the cap is attached.

FIG. 5 is a front view showing a final state when the cap is attached.

FIG. 6 is a longitudinal sectional view of the cap according to the second embodiment of the present invention, taken along line 6-6 in FIG. 8;

FIG. 7 is a vertical view taken along line 7-7 in FIG. 6;

FIG. 8 is a front view showing an initial state when the cap is attached.

FIG. 9 is a front view showing a middle state when the cap is attached.

FIG. 10 is a front view showing an end state when the cap is attached.

FIG. 11 is a front view showing an operation state of a cam when the cap is removed.

FIG. 12 is a longitudinal sectional view taken along line 12-12 in FIG. 11;

FIG. 13 is a fragmentary front view of a conventional high-pressure gas container of the same type as the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Container main body 2 Neck 3 Cap 4 Locking pin 6 Projection part 7 Locking notch 8 Vertical notch 9 Horizontal notch 11 Lock pin 12 Downward inclined surface 13 Spring 14 Cam 16 Rotating shaft 17 Handle

Claims (3)

(57) [Claims] 1. A high-pressure gas container in which a cap is detachably attached to a neck fixed to the top of a container body,
A radial locking pin protrudes from the upper outer periphery of the neck, and a radially protruding projection is formed at the opening edge of the cap, and a locking notch is provided at a position of the projection facing the locking pin. The locking notch has a vertical notch into which a locking pin can be fitted, and a horizontal notch connected to an upper end of the vertical notch in a horizontal direction, and a protrusion above the vertical notch. A high-pressure gas container characterized in that a lock pin is slidably fitted on the top of the lock pin so that the lock pin can move up and down, and a spring for urging the lock pin downward is provided on the protrusion. 2. The high-pressure gas container according to claim 1, wherein the lock pin has a downward inclined surface on a lower side surface facing the locking pin. 3. The cam according to claim 1, wherein a cam which engages with a spring for urging the lock pin in a downward direction and moves the lock pin up and down is provided at the projecting portion of the cap. High pressure gas container.