JPH0871931A - Pipe joint fastening tool and socket wrench having the same tool - Google Patents

Abstract

PURPOSE: To simply fasten an elbow-type pipe joint by a pipe joint fastening tool and a socket wrench having the same tool. CONSTITUTION: The pipe joint fastening too is formed in a hollow hole 11 where the socket changing part of a socket wrench handle can be attached and detached, and its other end is formed in to a polygonal hole 12 where the nut part of an elbow type pipe joint can be inserted. An opened part 14 formed by cutting the cylindrical body from the above other part to a central part with a plane parallel to its axis and partially removing it is formed in the cylindrical body, and the elbow type pipe joint can be inserted in the hollow part including the opened part 14.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tool for fastening a pipe joint, and more particularly to a tool for fastening an elbow type pipe joint and a socket wrench equipped with the tool.

[0002]

2. Description of the Related Art FIG. 8 is a plan view showing an example of an elbow type air joint which is a type of pipe joint. This air joint 1 has a screw 2 cut at one end and can be screwed into the screw because it is formed in a regulator or a valve, and the other end is bent at a right angle to the tip of the bent portion 3. A pipe to which compressed air or the like is sent can be connected. When fastening such an elbow type air joint to a regulator, a valve, etc., the male thread 2 of the air joint 1 is aligned with the screw formed on the regulator 5 as shown in FIG. Next, the wrench 6 is hung on the nut portion 4 of the air joint 1 and further tightened, and finally the air joint 1 and the regulator 5 are fastened.

[0003]

When an elbow type air joint is fastened to a regulator, valve or the like using a tool such as the wrench described above, the tool is hung on the nut portion of the air joint and is rotated to some extent, then the nut portion is removed. The operation of once removing and reapplying must be repeated, and there is a risk that it takes too much time and the nut portion may be crushed. Further, there is a drawback that the attachment position of the air joint has to be changed when there is no room for rotating the handle of a tool such as a spanner.
Socket wrench as a tool to eliminate such drawbacks,
In particular, a ratchet type or impact type socket wrench may be used, but there is a problem that the socket cannot be inserted because it is an elbow type air joint.

The present invention has been made in view of the above-mentioned circumstances, and an object of the present invention is to provide a pipe joint fastening tool and a socket wrench equipped with the tool that can easily fasten an elbow type pipe joint. To provide.

[0005]

The present invention relates to a tool for fastening a pipe joint, and more particularly to a tool for fastening an elbow type pipe joint. The above object of the present invention is to provide a tool for fastening a pipe joint. Is a hollow columnar body, one end of which is formed into a square hole into which the socket replacement portion of the socket wrench handle can be attached and detached, and the other end of which is a polygonal shape into which the nut portion of an elbow type pipe fitting can be inserted. An opening is formed in the hole, and the columnar body is formed with an open portion obtained by cutting one piece from the other end to the central portion in a plane parallel to the axis of the columnar body, and the elbow type pipe joint is provided in the hollow portion including the opening It is achieved by making it insertable. Further, in a socket wrench provided with a tool for fastening a pipe joint, a socket wrench handle that has a socket replacement portion and applies torque to the elbow-type pipe joint when fastening the elbow-type pipe joint, and a hollow Forming a columnar body, one end of the hollow is formed as a square hole into which the socket replacement part is attachable and detachable, and the other end is formed into a polygonal hole into which a nut part of the elbow type pipe joint can be inserted. The body is formed with an open part that is cut from the other end to the central part and is partially removed in a plane parallel to the axis of the body so that the elbow type pipe joint can be inserted into the hollow part including the open part. With a pipe joint fastening tool, or a socket wrench handle for applying torque to the elbow pipe joint when fastening the elbow pipe joint, and a hollow columnar body, One end of the hollow is front Is formed integrally with the handle socket wrench and the other end is formed can be inserted polygonal hole the nut portion of the elbow-type pipe joint,
The columnar body is formed with an open portion that is cut from the other end to the central portion and partially removed in a plane parallel to the axis thereof, and the elbow type pipe joint can be inserted into the hollow portion including the open portion. It is achieved by configuring with the pipe joint fastening tool.

[0006]

In the present invention, since the socket is provided with the opening portion into which the bent portion of the elbow type pipe joint can be inserted, even the elbow type pipe joint can be fastened with the socket wrench. Therefore, the tool does not come off during tightening and can be easily tightened.

[0007]

Embodiments of the present invention will now be described in detail with reference to the drawings. FIG. 1 is a perspective view showing an example of a pipe joint fastening tool of the present invention, and FIG. 2 is a normal projection view thereof. That is, FIG. 2A is a plan view and FIG. 2B is A-.
Partial sectional front view of line A, FIG. (C) is a side view, and FIG.
Is a bottom view. This pipe joint fastening tool 10 has a hollow cylindrical shape, and one end of the hollow is formed with a socket replacement portion of a socket wrench handle, that is, a square hole 11 into which a square screwdriver of a socket wrench handle can be attached and detached. The end is a polygonal hole 1 into which the nut part of an elbow type pipe fitting can be inserted.
2 is formed. In order to prevent the corner screwdriver of the socket wrench handle from falling out of the square hole 11, the square stopper 1 is provided to receive the ball stopper provided in the square driver.
Through holes 13 are provided from each surface of No. 1 to the outer peripheral side surface. Then, a part of the side surface of the pipe joint fastening tool 10 is cut to form the open portion 14. That is,
Polygonal hole 1 in a plane parallel to the axis of the pipe joint fastening tool 10
2 is cut from the other end to the central portion and one piece is removed to form an open portion 14, and the bent portion of the elbow type pipe joint projects into the open portion 14 and is accommodated therein. .

FIG. 3 and FIG. 4 are plan views showing an example of use when an elbow type air joint is fastened to a regulator, a valve or the like using the pipe joint fastening tool of the present invention. First, the male screw 2 of the air joint 1 is aligned with the female screw of the regulator 5, and the pipe joint fastening tool 10 is adjusted so that the bent portion 3 of the air joint 1 projects from the opening 14 of the pipe joint fastening tool 10. The air joint 1 is inserted from the other end where the square hole 12 is formed. When the nut portion 4 of the air joint 1 is inserted into the polygonal hole 12 of the pipe joint fastening tool 10 (FIG. 3 (A)), the ratchet type socket wrench handle is inserted into the square hole 11 of the pipe joint fastening tool 10. The square driver 7 is fitted (FIG. 3B), and the socket wrench handle 7 is swung to fasten the air joint 1 to the regulator 5.

Further, a square driver of a ratchet type socket wrench handle 7 is fitted into the square hole 11 of the pipe joint fastening tool 10, and the bent portion 3 of the air joint 1 extends from the opening 14 of the pipe joint fastening tool 10. So as to protrude, the air joint 1 is inserted from the other end where the polygonal hole 12 of the pipe joint fastening tool 10 is formed, and the nut portion 4 of the air joint 1 is inserted into the polygonal hole 12 of the pipe joint fastening tool 10. Is inserted (FIG. 4 (A)). Then, align the male screw 2 of the air joint 1 with the female screw of the regulator 5 (Fig. 4 (B)),
The socket joint wrench handle 7 is swung to fasten the air joint 1 to the regulator 5.

FIG. 5 is a perspective view showing another example of the pipe joint fastening tool of the present invention. This pipe joint fastening tool 20
Is different from the embodiment of FIG. 1 in that the open portions 24 are symmetrically provided at two places. That is, this pipe joint fastening tool 20 is suitable for fastening a T-shaped elbow type air joint 1'as shown in FIG. When a T-shaped elbow type air joint 1'is fastened to a regulator, a valve or the like using the pipe joint fastening tool 20, as shown in FIG.
Is fitted to the female thread of the regulator 5, and the pipe joint fastening tool 20 is adjusted so that the two bent portions 3 of the air joint 1 ′ project from the two open portions 24 of the pipe joint fastening tool 20. The air joint 1'is inserted from the other end where the rectangular hole 12 is formed. Then, after inserting the nut 4 of the air joint 1 ′ into the polygonal hole 12 of the pipe joint fastening tool 20, the square driver of the ratchet type socket wrench handle 7 is fitted into the square hole 11 of the pipe joint fastening tool 20. Then, the socket wrench handle 7 is swung to fasten the air joint 1 ′ to the regulator 5.

In the above-mentioned embodiment, the socket which can be attached to and detached from the ratchet type socket wrench handle has been described as the pipe joint fastening tool, but the present invention is not limited to this, and all the wrench handles using the socket are described. For example, it may be a socket attachable to and detachable from the handle for the impact wrench and the handle for the torque wrench. Also,
A socket wrench having a structure in which a socket and a wrench handle are integrated may be used. The material of the pipe joint fastening tool of the present invention is not particularly limited, and carbon steel for machine structure, alloy steel for structure and the like are used. Furthermore, although the pipe joint fastening tool has a cylindrical shape, it may have a prismatic shape. Although the air joint is mentioned as the pipe joint, the elbow type can be applied to a pipe joint such as a hydraulic joint. The pipe joint fastening tool of the present invention can also be used simply for fastening nuts, bolts, or straight pipe joints.

[0012]

As described above, according to the pipe joint fastening tool of the present invention and the socket wrench provided with the tool, even an elbow type pipe joint can be fastened using the socket wrench. The work is facilitated, the man-hours can be significantly reduced, and the fastening can be made stronger than the conventional fastening using a spanner or the like.

[Brief description of drawings]

FIG. 1 is a perspective view showing an example of a pipe joint fastening tool of the present invention.

FIG. 2 is a normal projection view of the pipe joint fastening tool of the present invention shown in FIG.

FIG. 3 is a plan view for explaining an example of use of the pipe joint fastening tool of the present invention shown in FIG.

FIG. 4 is a plan view for explaining another usage example of the pipe joint fastening tool of the present invention shown in FIG. 1.

FIG. 5 is a perspective view showing another example of the pipe joint fastening tool of the present invention.

FIG. 6 is a plan view showing an example of a general T-shaped elbow type pipe joint.

FIG. 7 is a plan view for explaining an example of use of the pipe joint fastening tool of the present invention shown in FIG.

FIG. 8 is a plan view showing an example of a general elbow type pipe joint.

FIG. 9 is a view for explaining fastening of a conventional elbow type pipe joint.

[Explanation of symbols]

 1, 1'Air joint 2 Male screw 3 Bent portion 4 Nut portion 5 Regulator 6 Spanner 7 Socket wrench handle 10, 20 Pipe joint fastening tool 11 Square hole 12 Polygonal hole 13 Through hole 14, 24 Opening part

Claims (3)

[Claims] 1. A hollow columnar body, one end of which is formed into a square hole into which a socket exchange portion of a handle for a socket wrench can be attached and detached, and the other end into which a nut portion of an elbow type pipe joint can be inserted. Formed into a polygonal hole, the columnar body is formed with an open portion that is cut from the other end to the central portion and partially removed in a plane parallel to its axis, and the elbow is provided in the hollow portion including the open portion. A pipe joint fastening tool, characterized in that a type pipe joint can be inserted. 2. A socket wrench handle having a socket exchange section for applying torque to the elbow type pipe joint when fastening the elbow type pipe joint, and a hollow columnar body,
One end of the hollow is formed into a square hole into which the socket replacement part is attachable and detachable, and the other end is formed into a polygonal hole into which a nut part of the elbow type pipe joint can be inserted. A pipe joint fastening tool in which an open portion is formed by cutting from the other end to the central portion and being partially removed in parallel planes, and the elbow type pipe joint can be inserted into a hollow portion including the open portion. Socket wrench characterized by being composed of and. 3. A handle for a socket wrench that applies torque to the elbow type pipe joint when fastening the elbow type pipe joint, and a hollow columnar body, and one end of the hollow is a handle for the socket wrench. It is integrally formed, and the other end is formed into a polygonal hole into which the nut part of the elbow type pipe joint can be inserted, and the columnar body is cut from the other end to the central part on a plane parallel to its axis. A socket wrench characterized in that a partially removed open portion is formed, and a pipe joint fastening tool capable of inserting the elbow type pipe joint into a hollow portion including the open portion. .