JPH10102829A - Pipe coupling - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the appearance of a pipe coupling and to contrive not to hurt the body of a worker even with a simple structure. SOLUTION: The pipe coupling comprises engaging bodies 2 and 2 respectively attached to the end parts of two pipes P and P; and a coupling body 1 located between the two engaging bodies 2 and 2. In a state that the two pieces P and P are laterally linearly coupled together, the coupling state between the two engaging bodies 2 and 2 and the coupling body 1 is brought into a mode wherein a pair of semispherical bodies 3 and 3 are connected together at the top parts thereof. Each engaging body 2 obliquely cuts the semispherical body 3 in a manner to cut off the top part thereof, and a circular notch slope 7 is formed. Meanwhile, the coupling body 1 symmetrically connects together the cut head parts and joining surfaces 6 overlapped with respective slopes 7 are arranged on both sides. The two central parts of the slope 7 and the joining surface 6 are coupled together by a stop tool B. By the coupling body 1 and the engaging body 2 rotated around the stop tool B, a coupling angle between the two pipes P and P can be adjusted.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a joint for connecting pipes at an arbitrary angle.

[0002]

2. Description of the Related Art Conventional pipe joints are disclosed in, for example,
As disclosed in Japanese Patent Publication No. 7-39480 and Japanese Utility Model Publication No. 58-4998, one set of connecting members having the same or different shapes is attached, and one end of each connecting member is attached to the pipe end. It is generally known to have a structure in which the other ends of both connecting members are overlapped, and the overlapped portion is supported by bolts. In addition, actual fairness 4
As disclosed in JP-A-9814, there is also one that is composed of a pair of connecting members and an intermediate interposed between the two connecting members.

[0003]

However, any of the conventional pipe joints has a fundamental problem that the structure of the components itself is complicated, which increases the cost and, of course, deteriorates the cost. Had brought a unique look. In addition, since components having a complicated structure have sharp edges, there is also a problem that the body is injured.

[0004] The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a pipe joint that is well-formed and has no risk of damaging the body.

[0005]

SUMMARY OF THE INVENTION A pipe joint according to the present invention comprises an engaging member attached to each of two pipe ends and a connecting member interposed between the two engaging members. In a state where both the engaging bodies and the connecting body are connected to each other, the pair of hemispherical bodies is connected at the tops thereof, and each of the engaging bodies is notched obliquely so as to cut off the tops. , Forming a circular notched inclined surface, while the joint body has a joining surface which is symmetrically continuous with the cut-out apex portion and has a joining surface overlapping on each of the inclined surfaces on both sides. It is characterized in that the connecting angles of the two pipes can be adjusted by connecting both central portions of the pipe and the surface with a fastener and turning the engaging body with respect to the combined body about the fastener.

[0006]

Since the engaging body has a structure in which a hemisphere is cut obliquely so as to cut off a top portion thereof, the notched inclined surface of the engaging body is oriented in the axial direction of the pipe attached to the engaging body.
It is inclined, so that the inclined surface of the engagement body is overlapped with the joint surface of the coupling body, and the axial direction of the pipe can be changed by rotating the engagement body with respect to the coupling body around the stopper.

Further, the engaging body is formed by cutting a hemisphere obliquely so as to cut off a top part thereof and has a circular notch inclined surface. The combined body symmetrically continues the cut top part, Since it has a joining surface that is superimposed on the inclined surface, the form in which the engaging bodies are attached to the left and right sides of the combined body is a form in which a set of hemispheres is continuous on the curved surface.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A pipe joint according to the present invention is shown in FIGS.
As shown in FIG. 3, an engaging body 2 attached to an end of a pipe P is rotatably screwed to each of right and left sides of a combined body 1, thereby connecting the two pipes P, P.

The present pipe joint is composed of two pipes P, P
Is connected in a horizontal straight line, a pair of hemispheres 3 and 3 whose apexes face sideways are formed in a continuous shape at the apex. Then, each hemisphere 3 is cut obliquely symmetrically and obliquely so as to cut off the top portion thereof, and further, so that the cut surface is circular. It can be assumed to be a component part, in which the central part is the coupling body 1 and the both sides are the engaging bodies 2. The hemisphere 3 is set to have the same diameter as the pipe P in order to improve the appearance. Note that the term “top” refers to the highest portion of a hemisphere when the hemisphere is stably placed on a plane, and the term “top” refers to a portion including a portion slightly lower than the top.

As shown in FIGS. 1 and 4, the coupling body 1 has a pair of flange portions 4 and 4 for rotatably mounting each engagement body 2.
Are symmetrically provided continuously in an inverted V-shape. Each flange 4 has a curved surface 5 forming the top of the hemisphere 3 and a circular joining surface 6 in contact with the engaging body 1, and a screw hole 6 a is formed at the center of the joining surface 6. is there.

On the other hand, the engaging body 2 has an inclined wall portion 8 having an inclined surface 7 having the same shape as the joint surface 6 and a peripheral wall continuous with the inclined wall portion 8 and forming a curved surface 9 excluding the top portion of the hemisphere 3. And a hollow portion 11 which is surrounded on three sides by the peripheral wall portion 10 and the inclined wall portion 8 and communicates with the outside only in the pipe mounting direction. The flange portion 4 of the combined body 2 and the engaging body 2 Is formed.

The sloping wall 8 is provided at the center of the sloping surface 7 in the cavity 1.
1 is provided with a stupid hole 7b communicating with 1. The inclined surface 7 and the joining surface 6 are overlapped with each other, and screws B serving as stoppers are screwed into the coincident stupid holes 7b and the screw holes 6a from the cavity portion 11 side, thereby engaging the left and right sides of the combined body 1. Coalescing 2
Are respectively attached, and the engaging body 2 can be rotated about the screw B.

The peripheral wall portion 10 has a disk-shaped cover plate 21 for closing the hollow portion 11 screwed to its end face on the pipe side.
The engaging body 2 is attached to the pipe P by screwing one piece of the angle plate 22 to the cover plate 21 and screwing the other piece of the angle plate 22 to the inner surface of the end of the pipe P. Sign 2
1a and 22a are screw holes, and 22b and 23b are stupid holes. The peripheral wall portion 10 has a concave portion 24 for accommodating the cover plate 21 at the center of the end face on the pipe side.
1 is not visible from the outside.

In this pipe joint, in a form in which two pipes P, P shown in FIG. 5A are connected in a horizontal straight line, the joint surface 6 of the joint body 1 and the inclined surface 7 of the engagement body 2 are 30 degrees (60 degrees with respect to the direction of the axis of the pipe P).
On the other hand, when one of the engaging bodies 2 (on the left side in the drawing) is turned by 180 degrees with the screw as the center axis, the axial direction of the pipe P is inclined by 60 degrees from the horizontal direction as shown in FIG. 1
The two pipes P can be connected at an angle of 20 degrees. Further, when the other (right) engaging body 2 is turned by 180 degrees, the two pipes P can be connected at an angle of 60 degrees as shown in FIG. That is, the present pipe joint shown in FIG. 5 can connect two pipes P, P within a range of 60 degrees to 180 degrees.

The joining surface 6 of the joint 1 and the engaging member 2
If the setting of the angle at which the inclined surface 7 is inclined with respect to the vertical line is changed, the angle range in which the two pipes P can be connected can be changed.

The pipe joint according to the present invention is not limited to the above embodiment. For example, as shown in FIG. 6, the joint body 1 may have a shape in which a pair of flange portions 4 and 4 are connected in a point-symmetric manner. Further, the method of connecting the engaging body 2 and the pipe P is not limited to the method of interposing the cover plate 21 and the angle plate 22 therebetween, and the engaging body 2 is provided with a cylindrical fixing portion to be inserted into the pipe. A method of connecting the fixed portion and the pipe may be used (not shown).

[0017]

In the pipe joint according to the present invention, the inclined surface of the engaging body is inclined with respect to the axial direction of the pipe attached to the engaging body, so that the engaging body is centered on the coupling body with respect to the stopper. By turning the pipe, the axial direction of the pipe can be changed, and as a result, the angle at which the two pipes are connected can be adjusted. In addition, the form of the present pipe joint is such that in a state where two pipes are connected in a horizontal straight line, a pair of hemispheres are continuous at the top thereof, and by turning the engaging body around the stopper from this form. Since the pair of hemispheres changes into a continuous shape on the curved surface, an extremely beautiful appearance can be obtained regardless of the angle at which the pipes are connected. In addition, since the surface of the present pipe joint is formed by a curved surface of a hemisphere, an excellent effect of not damaging the body is exhibited.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a pipe joint according to the present invention.

FIG. 2 is a perspective view showing a pipe joint according to the present invention.

FIG. 3 is an exploded view of FIG. 2;

FIG. 4 is a sectional view showing a state where the present pipe joint is disassembled into a pipe, an engagement body, and a combined body.

FIGS. 5A and 5B are front views showing how pipes are connected; FIGS.

FIG. 6 is a front view showing a combined body having a point-symmetrical shape.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Joint body 2 Engagement body 3 Hemisphere 6 Joining surface 7 Inclined surface B Stopper (screw) P Pipe

Claims (1)

[Claims] An engaging body (2, 2) attached to each end of two pipes (P, P) and a connecting body (1) interposed between the two engaging bodies (2, 2). In a state where the pipes (P, P) are connected in a horizontal straight line, the coupling between the two engaging bodies (2, 2) and the coupling body (1) is such that a pair of hemispheres (3, 3) is Each engaging body (2) has a hemispherical body (3) which is notched obliquely so as to cut off a top portion thereof to form a circular notched inclined surface (7). ) Has a symmetrically continuous apex portion that has been cut off and a joint surface (6) that overlaps each of the inclined surfaces (7) on both sides, and the inclined surface (7) and the joint surface (6). ) Are connected by a stopper (B), and the coupling body (1) rotates around the stopper (B).
A pipe joint characterized in that the connection angle between the two pipes (P, P) can be adjusted by means of the engagement body (2).