JPH07317977A - Joint - Google Patents

Abstract

PURPOSE:To provide the joint which can be adjusted to a desired joint angle. CONSTITUTION:In the joint which connects two pipes 54 and 56 to each other, the joint is equipped with a first connection member 12 connected to one pipe, and with a second connection member 14 which is connected to the other pipe, and so connected as to be tilted with the first connection member by a desired joint angle.

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 two pipes, and more particularly to a joint for connecting two pipes at a desired connecting angle.

[0002]

2. Description of the Related Art Usually, in connecting pipes such as water pipes, when changing the connecting direction of pipes, joints having a constant connecting angle, such as elbows, are used for connection. This elbow is usually formed in an annular shape, and is formed in a curved shape so that the connecting angle of each pipe inserted into the elbow is, for example, 90 degrees or 45 degrees. The pipes are connected in a predetermined direction by utilizing the joint such as the elbow.

[0003]

However, since the elbows that have existed in the past have already determined the bending angle, the connecting angle between the pipes to be connected depends on the type of the elbow. Could not connect in the desired direction. Further, due to such a problem, there is a problem that the work at the site where the pipes are connected becomes complicated. Therefore, it is an object of the present invention to provide a pipe joint capable of adjusting a desired angle.

[0004]

In order to achieve the above object, the present invention provides a joint for connecting two pipes,
A first connecting member connected to one pipe, and a second connecting member connected to the other pipe and connected to the first connecting member at a desired connecting angle. It is a thing.

An R-shaped convex portion is formed at a connecting portion of the first connecting member with the second connecting member, and the first connecting member has a first connecting member.
It is preferable that an R-shaped recessed portion that can be connected to the protruding portion is formed at a connecting portion with the connecting member, and the protruding portion is slidable while maintaining the engaged state with respect to the recessed portion.

Further, another invention for achieving the above object is, in a joint for connecting two pipes, a first connecting member connected to one pipe and a second connecting member connected to the other pipe. And a third connecting member that connects the first connecting member and the second connecting member, and at least one of the first and second connecting members has a desired connecting angle with the third connecting member. It is characterized by being connected.

At least one of the connecting portion of the first connecting member with the third connecting member and the connecting portion of the second connecting member with the third connecting member is formed with an R-shaped projection or recess, The convex portion or the concave portion is engaged with each portion of the third connecting member that is connected to the first and second connecting members,
In addition, it is preferable that an R-shaped concave portion or convex portion that is slidable while maintaining this engaged state is formed.

It is preferable that a fixing member is provided for connecting and fixing the first and second connecting members to each other while maintaining the connecting angle.

[0009]

According to the present invention, the second connecting member is connected to the first connecting member at a desired connecting angle. Therefore, the two pipes are easily connected in a desired direction.

Further, according to the present invention, the R-shaped convex portion formed on the first connecting member slides while maintaining the engagement with the R-shaped concave portion formed on the second gripping member. Therefore, the first connecting member can be arbitrarily moved along the R shape of the second connecting member. Therefore, the connection angle between the first connecting member and the second connecting member can be smoothly adjusted, and both can be connected more easily and surely at a desired angle.

Furthermore, the first connecting member is provided via the third connecting member.
By connecting the connecting member and the second connecting member, each pipe can be connected at a desired connecting angle, and the distance between the pipes can be adjusted by adjusting the length of the third connecting member.

Further, the first connecting member and the second
Since at least one of the connecting members can be arbitrarily moved along the R shape of the third connecting member, the connecting angle of each connecting member can be smoothly adjusted, and each connecting member can be connected more easily and securely at a desired angle. it can.

Further, by fixing the first connecting member and the second connecting member with a fixing member, the respective connecting members are securely held to each other. Therefore, in addition to the above action, the pipes are connected in a more stable state.

[0014]

Embodiments of the present invention will now be described with reference to the drawings. FIG. 1 is a partial sectional view of a joint 10 according to this embodiment, and FIG. 2 is a right side view of the joint 10. The joint 10 is
As shown in FIG. 1, a first connecting member 12 that mainly connects one of two pipes to be connected and another pipe, and is connected to the first connecting member at a desired connecting angle. Second connecting member 14 and fixing member 16 for fixing these first and second connecting members 12, 14
It consists of and.

The first connecting member 12 is a substantially hemispherical connecting portion 1.
It has a structure in which a flange 18 is provided around the bottom end of 2A. From the flange 18 side of the first connecting member 12 toward the apex of the connecting portion 12A, a cylindrical opening 22 that is a communication port for communicating both pipes is formed perpendicular to the circumferential direction of the flange 18. . The opening 22 is located closer to the flange 18 side of the opening 22, that is, from the left side of FIG.
A step 24 is formed so as to increase the inner diameter, and a taper surface 26 is formed on the outer side of the step 24 so as to spread toward the outer peripheral side. The inner diameter of the step 24 is equal to the first connecting member 12
A pipe (not shown) to be connected with is formed in a size that fits. Further, when the pipe is fitted into the step 24, the welding agent is fixed in the gap formed by the tapered surface 26 and the pipe in order to firmly fix the first connecting member 12 and the pipe and prevent water leakage and the like. Etc. may be filled. Cylindrical insertion openings 27 perpendicular to the circumferential direction are formed in the flange 18 at three equal intervals so that the fixing member 16 can penetrate therethrough. The insertion port 27 is used as the fixing member 1.
The fixing member 1 is formed to be somewhat larger than the diameter of 6
6 is in a state of being loosely inserted in the insertion port 27. further,
A step 28 for increasing the inner diameter of this portion is formed on the end portion side of the insertion opening 27 away from the connecting portion 12A, and the second washer 50A for supporting the fixing member 16 is formed on this step 28 portion. Configured to mate.

The second connecting member 14 has a structure in which a flange 30 is provided around one end of a connecting portion 14A formed in a cylindrical shape. The flange 3 is attached to the axial center of the second connecting member 14.
From the 0 side, the other end of the connecting member 14A, that is, a tapered opening 32 that spreads from right to left in FIG. 1 is formed, and both pipes communicate with each other through the opening 32 and the opening 22. It is supposed to be done. Opening 32
The vicinity 34 of the end of the connecting portion 14A is formed in an R shape so as to engage with the outer peripheral surface of the connecting portion 12A of the first connecting member 12. Further, on the flange 30 side of the opening 32, the first
Similar to the connecting member 12, a step 36 whose inner diameter is increased is formed. Further, on the outer side, a tapered surface 38 that spreads toward the outer peripheral side is formed. The inner diameter of the step 36 has a pipe (not shown) to be connected by the second connecting member 14.
Are formed in such a size that they fit together. Further, when the pipe is fitted to the step 36, the welding agent is firmly attached to the gap formed by the tapered surface 38 and the pipe in order to firmly fix the second connecting member 14 and the pipe and prevent water leakage or the like. Etc. may be filled. As shown in FIG. 2, the flange 30 is provided with three cylindrical insertion openings 40 perpendicular to the circumferential direction at equal intervals, and the fixing member 16 is penetrated through the insertion openings 40. There is. The insertion port 40 is also formed to be somewhat larger than the diameter of the fixing member 16, and the fixing member 16 is loosely inserted in the insertion port 40. Further insertion port 40
A step 42 for enlarging the inner diameter of this portion is formed on the end side away from the connecting portion 14A so that the second washer 50B supporting the fixing member 16 fits into this step 42. Is configured.

The fixing member 16 mainly includes a bolt 44,
It is composed of a nut 46 screwed into one end of the bolt 44. The bolt 44 is inserted into the insertion opening 27 of the first connecting member 12 and the insertion opening 40 of the second connecting member 14, penetrates both of them, and then a nut 46 is screwed into one end thereof to form the first connecting member. 12 and the second connecting member 14 are fixed.

A bolt 44 is provided between the nut 46 and the flange 18 and between the nut 46 and the flange 30.
A first washer 48 and a second washer 50 are provided to support the. One side surface of the first washer 48 is formed flat so as to come into contact with the head portion 44A of the bolt 44 or the nut 46, and the other side surface is formed into a substantially hemispherical shape. The second washer 50 is the first washer 48.
The second washer 50 has an outer diameter formed so as to fit into each of the steps 28 and 42. Further, the side surface of the second washer 50 that contacts the first washer 48 is formed in a substantially hemispherical concave shape so as to contact the first washer. Due to this R shape, the first washer 48 is supported with respect to the second washer 50 at a desired contact angle. Further, an O-ring 52 is disposed at the contact portion between the first connecting member 12 and the second connecting member 14, and the O-ring 52 is used to connect the first connecting member 12 and the second connecting member 14 to each other. Is a hermetic seal, and as a result, the first connecting member 12 and the second connecting member 14 are communicated with each other in a hermetically sealed state from the outside.

Next, the usage state of this embodiment will be described. First, as shown in FIG. 3, the pipe 54 is inserted from the opening 18 of the first connecting member 12 from the flange 18 side until it abuts on the step 24. Next, a welding agent is injected into the gap formed between the tapered surface 26 of the first connecting member 12 and the pipe 54 to weld the pipe 54 and the first connecting member 12. As a result, both are firmly fixed and communicated in a sealed state. In addition, the pipe 56 is stepped from the flange 40 side of the opening 32 of the second connecting member 14
Insert until it touches. Here, similarly to the above, the welding agent is injected into the gap formed between the tapered surface 38 and the pipe 56 to weld them together.

Next, the tightening of the nut 46 screwed to the three bolts 44 is loosened, and the connecting portion 14 of the second connecting member 14 is connected to the connecting portion 12A of the first connecting member 12.
While sliding A, the first connecting member 12 is displaced from the second connecting member 14 by an angle α, and the pipes 54 and 5
6 and 6 are connected at a desired angle. At this time, since the connecting portion 14A slides smoothly along the R shape of the connecting portion 12A, the connecting angle can be easily adjusted. Also, the connection angle can be freely determined. Next, when the connection angle of the pipes 54 and 56 is determined,
Tighten the nut 46 on the bolt 44. By doing so, the first connecting member 12 and the second connecting member 14 are firmly fixed while maintaining the connecting angle. Since the connecting surfaces of the first washer 48 and the second washer 50 are formed in an R shape so as to abut each other, the flange 30 faces the flange 18 in parallel in order to maintain the connection angle. 2nd of the 1st washer 48
The contact state of the washer 50 with the washer 50 can be secured.
The bolt 44 is loosely inserted in the opening 27 and
Since the contact surfaces of the washer 48 and the second washer 50 are formed in an R shape, even if the flange 30 is not parallel to the flange 18, it is possible to interpose the first and second washers 48, 50. , The first connecting member 12 and the second connecting member 14 to the bolt 4
4 and the nut 46 can firmly fix them.

As described above, according to this embodiment, the connecting angle of the pipes to be connected can be changed. Further, since the connecting portions of each of the first connecting member 12 and the second connecting member 14 are formed in an R shape, it is possible to smoothly adjust the angle, and further, to connect each of the first and second washers. Since the portion is formed in the R shape, the first and second connecting members 12 and 14 can be firmly connected via the fixing member 16.

In this embodiment, the abutting surfaces of the first connecting member 12 and the second connecting member 14 are formed in an R shape. However, the contact surfaces are not limited to this. The concavity and convexity may be formed so that the connection angle is changed at a certain fixed angle (for example, 5 degrees).

Next, a second embodiment according to the present invention will be described. FIG. 4 shows a joint 10 according to another embodiment of the present invention.
Indicates. In this embodiment, the same members as those in the above embodiment are designated by the same reference numerals and the description thereof will be omitted. This embodiment is different from the above embodiment in that the second connecting member 14 of the present embodiment is the first connecting member 1 used in the first embodiment.
It has the same shape as that of No. 2 and the point where the third connecting member 58 is interposed between the first connecting member 12 and the second connecting member 14.

The third connecting member 58 is formed in a cylindrical shape as shown in FIG. 4, and both ends of the inner peripheral surface 62 are connected to the connecting portion 12A of the first connecting member 12 and the connecting member of the second connecting member 14. It is formed in an R shape so as to engage with each of the 14 connecting portions 14A. First connecting member 12 and second connecting member 1
An O-ring 52 is arranged at the contact portion between the fourth connecting member 58 and the third connecting member 58, and the O-ring 52 allows connection between the first connecting member 12, the third connecting member 58, and the third connecting member 14. Is hermetically sealed, and as a result, the first connecting member 12, the second connecting member 14, and the third connecting member are communicated in a state of being sealed from the outside. As shown in FIG. 5, the first connecting member 12 and the second connecting member 14 are firmly fixed to the third connecting member 58 with a desired angle by bolts 44 and nuts 46 in the same manner as in the first embodiment. .

With the above structure, the length of the joint can be changed by changing the length of the intermediate member 58, for example.

In the first and second embodiments, the fixing member 1
6, the bolt 44 and the nut 46 were used,
Not limited to this, other fixing members such as a long screw may be used as long as the first connecting member 12 and the second connecting member 14 can be fixed while the connecting angle is maintained. Also,
Although the first connecting member 12 is connected to the end of each pipe in the second embodiment, the structure is not limited to this, and the second connecting member 14 may be connected to the end of each pipe. And in this case, the structure of both ends of the inner diameter surface 62 of the third connecting member 58 is
As a matter of course, the R-shapes of the members to be connected are engaged with each other so that the connection angles of the members can be changed. Further, in the second embodiment, the connecting angle is adjustable at both ends of the third connecting member 58, but the present invention is not limited to this, and the connecting angle can be adjusted at least at one end of the third connecting member 58. I wish I had it.

DETAILED DESCRIPTION OF THE INVENTION As described above, according to the present invention, the present invention can provide a pipe joint that can be adjusted to a desired connection angle. As a result, the effect that two pipes can be connected at a desired angle is obtained.

[Brief description of drawings]

FIG. 1 is a partially cutaway sectional view of a joint according to an embodiment of the present invention.

FIG. 2 is a side view of the joint according to the present embodiment.

FIG. 3 is a diagram showing a usage state of the joint according to the present embodiment.

FIG. 4 is a diagram showing a second embodiment of the present invention.

FIG. 5 is a diagram showing a usage state of the second embodiment.

[Explanation of reference numerals] 10 joint 12 first connecting member 14 second connecting member 16 fixing member (fixing means)

Claims (5)

[Claims] 1. A joint for connecting two pipes,
A joint comprising a first connecting member connected to one pipe and a second connecting member connected to the other pipe and connected to the first connecting member at a desired connecting angle. 2. An R-shaped convex portion is formed at a connecting portion of the first connecting member with the second connecting member, and the convex portion is provided at a connecting portion of the second connecting member with the first connecting member. R that can be connected to
The joint according to claim 1, wherein a concave portion is formed, and the convex portion is slidable while maintaining the engaged state with respect to the concave portion. 3. A joint for connecting two pipes,
A first connecting member connected to one pipe, a second connecting member connected to the other pipe, and a third connecting member connecting the first connecting member and the second connecting member,
At least one of the first and second connection members is a joint connected to the third connection member at a desired connection angle. 4. An R-shaped protrusion or recess is formed on at least one of a connecting portion of the first connecting member with the third connecting member and a connecting portion of the second connecting member with the third connecting member. An R-shaped concave portion that engages with the convex portion or the concave portion and is slidable while maintaining the engaged state at each portion of the third coupling member that is coupled to the first and second coupling members. Alternatively, the joint according to claim 3, wherein a convex portion is formed. 5. The joint according to claim 1, further comprising a fixing member that connects and fixes the first and second connecting members to each other while maintaining the connecting angle.