JPH0953789A - Sealed plug of pipe end part and mounting device for sealed plug - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent internal corrosion as well as to secure sealing properties in a sealed plug attached at the opening end of a sealed pipe whose cylindrical part is formed of an inner caulking, by forming a crown cap to the end part of a column body equipped with the housing groove of a sealing member, and arranging to the other end thereof a claw body formed of a claw equipped with a plurality of jaws. SOLUTION: In a pipe whose inner surface thereof should not be corroded by penetration of liquid, for example, a sealed plug 3 for an internal rust, preventive pipe, a cylindrical part 1 in which two baggy groves 12 are formed to a metallic cylinder 11 is fitted to a sealed pipe 2 by matching the opening end thereof to a pipe P. In this sealed plug 3 which is formed of a plastic material, a crown cap 34 is formed at the end part of a column body 31, and a claw body 4 outwardly extended is formed at the other end thereof. The claw body 4 is inserted and attached to the sealed pipe 2 so that the jaw surface of the jaw 42 of the claw 41 of the claw body 4 is collided with and stopped at the end of the cylinder 11, and the saddle part 32 of the column body 31 is fitted to the baggy grooves 12 so as to be engaged and attached therewith/ thereto, therefore sealing properties in the pipe P can be secured by a sealing member 5 such as an O-ring and so on arranged to a containment bar 33.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hermetic plug at the end of a pipe and a device for mounting the hermetic plug, and more specifically, a hermetic plug having a function of preventing fluid from entering the inside of the pipe, and the hermetic plug not separated.
The present invention relates to attachment means for attaching to a pipe end in a non-rotating or separable state.

[0002]

SUMMARY OF THE INVENTION The present invention seeks to provide a sealed plug for a pipe whose inner surface must not be corroded by the intrusion of a fluid, for example, an inner rust preventive pipe.

[0003]

The hermetic plug according to the present invention secures the hermeticity by mounting a sealing material on a cylindrical body forming the hermetic plug as a means for closing the inside of a pipe, and is divided into a plurality of non-separating means. The jaws are formed on the respective nails of the nail body.

[0004]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The basic structure of the present invention will be described below with reference to the accompanying drawings. The tubular portion indicated by reference numeral 1 in FIG. 1 is formed as a metallic cylinder 11 having a predetermined length, and two hollow bag grooves 12 having a depth m are formed in the cylinder 11 at symmetrical positions. The number of the bag grooves is not particularly limited. Further, by forming the knurls 13 on the surface, it is possible to increase the crimping function to the tubular body during the internal caulking.

In FIG. 2, the tubular portion 1 is fitted into the pipe P with its opening ends aligned to form a hermetically sealed pipe 2. Therefore, as the fitting means, the inside of the tubular portion is opened and crimped by using a caulking mechanism. Inner caulking means are used. The sealing plug will be described with reference to FIG. 3 as follows. The hermetic stopper 3 is made of a plastic material, and is formed of a cylindrical body 31 and a claw body 4 having a cap 34 formed at the end of the cylindrical body and extending outward from the other end.

The cylindrical body 31 is provided with a hollow portion 32 having a thickness substantially the same as the wall thickness of the cylinder 11 of the cylindrical portion over the width m in the central portion of the cylindrical body 31, and an O-ring is provided outside the terminal of the hollow portion. A storage strip 33 is provided for storing the sealing material such as. The claw body 4 is formed by six claws 41, and the claw 41 is erected at the base of the claw 41 at the end of a cylindrical body, and the free end thereof is elastically deformable in the axial direction. Also, a jaw 42 is formed at the free end of the claw 41, and the length l between the end of the hook 32 and the chin surface is the end from the bag bottom of the bag groove 12 of the tubular body 11 shown in FIG. It is formed to have almost the same length as the length 1 up to.

The embodiment of the present invention will be described below with reference to FIG. As shown in the drawing, if the claw body 4 of the stopper is inserted into the sealing tube 2 formed by caulking the tube portion 1 inside the tube P, the jaw surface of the jaw 42 of the claw 41 of the claw body is the end of the cylinder 11. It cannot be pulled out by hitting the part (non-separated). Moreover, the joint 32 of the cylindrical body 31 cannot be rotated (non-rotated) by being fitted into the bag groove 12 of the cylinder 11. Moreover, O provided in the storage strip 33
The sealing material 5 such as a ring ensures the tightness of the inside of the pipe. As shown in the figure, the opening of the sealed tube 2 has a cap 3
Closed by 4.

Another embodiment of the present invention will be described with reference to FIG. 5 as follows. As in the case shown in FIG. 4, it has a structure in which the sealing plug 3 is attached to the sealing tube 2 in a non-separable and non-rotating state, but the cap 6 is connected to the cap 34.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The non-separable type stopper and its mounting device will be described below with reference to FIGS. 6, 7 and 8. Figure 6
Shows a sealed tube 2 formed by attaching a tube portion 1 formed of a cylinder 11 to the tube P by means of inner caulking means.

In FIG. 7, a crown cap 34 is provided at the end of a cylindrical body 31, and a claw body 4 formed of a plurality of claws 41 is provided at the other end.
It shows a hermetic stopper 3 having a storage strip 33 of a sealing material in an intermediate portion. FIG. 8 shows the case where the sealing plug 3 is attached to the sealing tube 2. As is clear from the figure, the jaw 42 of the claw 41 is urged against the end face of the cylinder 11 to prevent the withdrawal (non-separation). ). Further, the sealing material 5 such as an O-ring provided on the storage strip 33 ensures the tightness of the inside of the pipe.

[0011]

Other Embodiments Another embodiment of the present invention will be described below with reference to FIGS. 9, 10 and 11. This embodiment relates to a removable stopper. FIG. 9 is a cross-sectional view of a main part of the plastic stopper 3, in which a cap 34 is formed at the end of the cylindrical body 31, and the claw body 4 extending outward is provided at the other end of the cylindrical body. Has been formed.

Further, each of the claw bodies 4 is formed with two storage strips 33 of a sealing material. FIG. 10 shows a case where the above-mentioned sealing plug 3 is attached to a sealing tube.
As shown in the figure, the sealed tube 2 is a case where a bag groove 12 is formed in a cylinder 11, and in this case, the sealing material 5 is provided with a claw 41.
It is attached to the storage strip 33 at the tip of the to secure the tightness.

FIG. 11 shows a case where the above-mentioned sealing plug is directly attached to the pipe end. As shown in the drawing, the storage strip 33 in which the sealing material 5 is formed on the base side of the claw 41 with respect to the pipe P
It is attached to and secures the tightness. In the case of the sealed pipe of the type shown in FIG. 10 where the bag groove is desired to be present and the direct attachment to the pipe, the sealing material can be attached either at the base side or at the tip end.

The present invention is not limited to the above-described embodiments and examples of the invention. For example, forming a protrusion on a cap can be applied to all tightness, and the material of the tight plug is not limited to this. Also, the number and the like of the claws can be designed arbitrarily, and the number and the like of the storage strips of the seal material can also be designed arbitrarily.

[0015]

According to the present invention, a plurality of claws are outwardly extended at one end of a cylindrical body, and a non-separable sealing plug is formed by a jaw formed on the claw, and a non-rotating structure is formed by a hook formed on the cylindrical body. Type of sealing plug, and the sealing property inside the pipe is obtained by mounting the sealing plug at the open end of the pipe, and the sealing property is sealed by the sealing material provided on the cylindrical body. Can be ensured and internal corrosion can be prevented.

In particular, the present invention is suitable as a hermetic plug for an open vinyl take-up tube in, for example, an agricultural vinyl howl, and moreover, if the hermetic plug with a projection is optimally used as a pillar in the above house, a rust preventive function is surely obtained, It does not require the flattening process of the pipe end that is usually performed.

The pipe with a projection can be used as a measuring rod for surveying or a pipe for splinting trees. Further, according to the present invention, by forming two sealing material storage strips at appropriate places on the claw, a removable stopper can be provided regardless of the type of the sealing tube.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a main part of a tubular part.

FIG. 2 is a sectional view of a main part of a sealed tube.

FIG. 3 is a sectional view of a main part of a hermetic stopper.

FIG. 4 is a sectional view of a main part of the embodiment.

FIG. 5 is a cross-sectional view of main parts of another embodiment.

FIG. 6 is a cross-sectional view of a main part of another sealed tube.

FIG. 7 is a cross-sectional view of a main part of another sealing plug.

FIG. 8 is a cross-sectional view of a main part of an embodiment using another sealing plug.

FIG. 9 is a sectional view of a main part of another hermetic plug.

FIG. 10 is an example using another sealing plug.

FIG. 11 is an example using another sealing plug.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cylinder part 11 Inner cylinder 12 Baggage 2 Sealing tube 3 Sealing plug 31 Cylindrical body 32 Clough part 33 Storage article 34 Cap 4 Claw body 41 Claw 42 Jaw 5 Sealing material 6 Projection P tube

Claims (4)

[Claims] 1. A hermetic plug for attaching a tubular portion having a bag groove to an open end of a sealing tube formed by inner caulking, wherein a cap is provided at the other end of a cylindrical body having a storage strip of a sealing material. A hermetically sealed plug comprising a nail body formed of nails provided with a plurality of jaws. 2. A hermetic plug for mounting an open end of a sealed tube formed by caulking a tubular part, wherein a cap is formed at the end of a cylindrical body and a claw provided with a plurality of jaws at the other end. A tight stopper characterized by being configured with a nail body. 3. A hermetically sealed cap, characterized in that a cap is formed at the end of a cylindrical body, and one or two sealing strips of sealing material are formed at the other end. 4. The hermetic plug according to claim 1, 2, or 3, wherein a projection is formed on a cap of a cylindrical body.