JPH088435Y2 - Nozzle for measuring pressure resistance of container - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pressure measuring nozzle for a container. More specifically, for containers such as gas cylinders filled with propane gas, etc., the pressure resistance to be connected and attached to the pipe port of the container when the high pressure water etc. is pressure-fed into the container immersed in the water jacket for pressure resistance measurement. The present invention relates to an improvement relating to the seal structure of a measurement nozzle.

[0002]

2. Description of the Related Art Conventionally, for example, a nozzle shown in FIG. 2 is known as a container pressure-resistant measuring nozzle.

This conventional pressure measuring nozzle for a container is a technique disclosed in, for example, Japanese Utility Model Publication No. 58-52509, and a container B is provided with a screw portion 11 on the outer periphery of the lower end.
Body 1 that is screwed into the pipe opening Ba of the
A ring-shaped packing holder 2 which is fitted to the outer side above the threaded portion 11 of the nozzle body 1 and is tightened in the direction of the peripheral edge portion Bb of the pipe mouth Ba of the container B by screwing the nozzle body 1 to the pipe mouth Ba of the container B. It is provided with a nozzle packing 3 interposed between the holder 2 and the peripheral portion Bb of the pipe mouth Ba of the container B. The nozzle body 1 is composed of an upper portion 12 and a lower portion 13 that are screwed together, and the upper portion 12 is attached and supported by a mounting mechanism 5 to a lid 4 that closes a water jacket (not shown). The lower part 13 has a handle 15 which is rotated when worn, and the lower part 13 is provided at its lower end with the screw part 11 screwed to a screw part Bc provided at the inner peripheral part of the pipe mouth Ba of the container B and at the upper end. A step portion 14 that presses the packing holder 2 is provided.

In such a conventional container pressure-resistant measuring nozzle, if the nozzle body 1 is not accurately screwed into the container B, a tight sealing property can be obtained at the screwed portion (screw portion 11, Bc). In addition, the tightening of the nozzle packing 3 by the packing holder 2 becomes uneven, and a tight sealing property cannot be obtained even between the nozzle packing 3 and the peripheral portion Bb of the pipe mouth Ba of the container B. There is. In particular, if the nozzle body 1 and the threaded portions 11 and Bc of the container B are worn and damaged or the processing accuracy is low, it becomes difficult to screw the nozzle body 1 onto the container B accurately.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in consideration of the above-mentioned problems, and the nozzle body can be accurately screwed into the container, and a tight sealing property with the container is provided. It is an object to provide a pressure-resistant measuring nozzle for a container that can be obtained.

[0006]

In order to solve the above-mentioned problems, a pressure-resistant measuring nozzle of a container according to the present invention comprises a nozzle body provided with a screw portion at the outer periphery of the lower end and screwed to a pipe mouth of the container. A ring-shaped packing holder that is fitted to an outer side above the threaded portion of the nozzle body and that is tightened in the peripheral direction of the pipe mouth of the container by screwing the nozzle body to the pipe mouth of the container,
In a pressure-resistant measuring nozzle of a container, which comprises a packing holder and a nozzle packing interposed between a peripheral portion of a pipe mouth of the container, the packing holder is screwed directly or indirectly onto the nozzle body, and packing is performed. The holder is uniquely capable of being tightened in the peripheral direction of the pipe mouth of the container.

[0007]

According to the above-mentioned means, the nozzle body is screwed to the pipe mouth of the container in the same manner as in the conventional case, but the packing holder is independently tightened in the peripheral direction of the pipe mouth of the container separately from the nozzle body. Therefore, even if the nozzle body is not screwed into the container accurately, the nozzle holder can be tightly tightened by the packing holder to at least tightly seal the nozzle packing and the peripheral portion of the pipe mouth of the container. can do. Also, if the packing holder is tightened before the nozzle body is completely screwed into the container, the inaccuracy of screwing the nozzle body into the container can be corrected. The sex can be close. Therefore, the problem to be solved is to provide a nozzle for pressure resistance measurement of a container, in which the nozzle body can be accurately screwed into the container and a tight sealing property with the container can be obtained.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a pressure resistance measuring nozzle for a container according to the present invention will be described below with reference to FIG.

In this embodiment, the packing holder 2 is indirectly screwed to the nozzle body 1, and the parts other than the packing holder 2 have the same basic structure as the above-mentioned conventional example.

The packing holder 2 of this embodiment is shown in FIG.
In the conventional example of the packing holder 2 as the holder body 21,
A screwing portion 22 screwed into the nozzle body 1 is provided above the holder body 21. The screwing portion 22 is the holder body 21.
A threaded portion 22a is provided on the inner peripheral portion of the same ring shape, and a handle 22b similar to that of the above-described conventional example is attached to the outer peripheral portion, and abuts against the holder main body 21 via a packing 23.

The step portion 14 of the lower portion 13 of the nozzle body 1
The threaded portion 22 of the packing holder 2 is provided on the outer peripheral surface on the lower side.
The screw portion 16 is provided with which the screw portion 22a is screwed. Further, since the screw portion 16 is provided, the screw portion 11 at the lower end of the lower portion 13 of the nozzle body 1 to the step portion 14 at the upper end.
The length up to is longer than that of the above-mentioned conventional example.

According to this embodiment, when the container B is screwed and attached, the handle 15 is used as in the above-mentioned conventional example.
To rotate the nozzle body 1 to rotate the nozzle body 1
Is screwed onto the threaded portion Bc of the pipe mouth Ba of the container B. At this time, if the axis line of the nozzle body 1 and the axis line of the tube mouth Ba of the container B are misaligned and the nozzle body 1 is screwed into the container B inaccurately, the engagement between the screw parts 11 and Bc becomes irregular. The sealing property of the threaded portion of the nozzle body 1 and the container B becomes poor, and the tightening of the nozzle packing 3 by the packing holder 2 becomes uneven, so that the nozzle packing 3 and the peripheral portion Bb of the pipe mouth Ba of the container B are separated. The sealing property becomes poor even in the interval. However, after the nozzle body 1 is screwed into the container B, the handle 22b is rotated to rotate the screwing portion 22 of the packing holder 2 downward, and the holder body 21 firmly fixes the nozzle packing 3 to the pipe opening Ba of the container B. By tightening on the peripheral edge portion Bb, at least the sealability between the nozzle packing 3 and the peripheral edge portion Bb of the pipe opening Ba of the container B can be made tight.

Further, according to such an embodiment, if the above-mentioned tightening operation of the packing holder 2 is carried out before the nozzle body 1 is completely screwed into the container B, in addition to the above-mentioned usage mode, this tightening stress is caused. Acts to match the axis of the nozzle body 1 with the axis of the tube opening Ba of the container B, and the inaccuracy of screwing the nozzle body 1 onto the container B can be corrected. As a result, the sealing property can be made tight even at the screwed portion of the nozzle body 1 and the container B.

As described above, in addition to the illustrated embodiment, the holder body 21 and the screwing portion 22 of the packing holder 2 are integrated,
An embodiment in which the packing holder 2 is directly screwed into the nozzle body 1 is also possible.

[0015]

As described above, in the pressure measuring nozzle of the container according to the present invention, the packing holder is independently provided in addition to the nozzle body in the direction of the peripheral portion of the pipe mouth of the container to correct the defective sealing property. Therefore, there is an effect that the nozzle body can be accurately screwed to the container and a tight sealing property with the container can be obtained. Also, due to this effect, air leakage between the container and the like is prevented,
The effect of improving the accuracy of the withstand voltage measurement occurs.

[Brief description of drawings]

FIG. 1 is a sectional view showing an embodiment of a nozzle for pressure resistance measurement of a container according to the present invention.

FIG. 2 is a sectional view showing a conventional example.

[Explanation of symbols]

 1 Nozzle body 11 Screw part 2 Packing holder 3 Nozzle packing B Container Ba Pipe mouth Bb Peripheral part

Claims (1)

[Scope of utility model registration request] 1. A nozzle body provided with a threaded portion on the outer periphery of a lower end and screwed to a pipe mouth of a container, and a nozzle body fitted to an outer side above the threaded portion of the nozzle body to a pipe mouth of the container. For measuring the pressure resistance of a container, which comprises a ring-shaped packing holder that is tightened in the direction of the peripheral edge of the pipe mouth of the container and a nozzle packing interposed between the packing holder and the peripheral edge of the pipe mouth of the container. A nozzle for pressure resistance measurement of a container, characterized in that, in the nozzle, the packing holder is directly or indirectly screwed into the main body of the nozzle so that the packing holder can be independently tightened in the peripheral direction of the pipe mouth of the container.