JPH0710685U - Fluid universal joint - Google Patents

Abstract

(57) [Summary] [Purpose] To improve the workability when forming a pipe line and reduce the work and installation space by providing flexibility in the direction of the pipe connection port. [Configuration] While intersecting the first and second connection ports,
The intermediate body 4 having the first and second connection ports formed therein, the first body coaxially forming the connection part and the pipe connection port, and the second body intersecting the connection part and the pipe connection port. And the connecting part are rotatably connected.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a fluid universal joint for connecting pipes, in which the connection direction can be arbitrarily set.

[0002]

[Prior art]

 Conventionally, to connect valves, pumps, boilers, and other devices that use fluid, 90 ° elbow, 90 ° Y curved pipe, and straight It is necessary to combine various pipes such as pipes to form and connect a predetermined pipe line, which has a drawback that the work is extremely troublesome.

[0003]

[Problems to be solved by the device]

 The present invention has flexibility in the direction of the pipe connection port of each body, improves workability when forming various pipes by combining various pipes, and does not rotate the fluid spontaneous joint itself. The purpose of the invention is to provide a fluid universal joint that can be connected to piping to reduce work and installation space.

[0004]

[Means for Solving the Problems]

 In view of the problems of workability and the like based on the above-mentioned conventional technique, the present invention is configured such that the intermediate body is rotatable with respect to the axis of the linear flow path of the first body, and the second connection of the intermediate body intersects with the axis. The second body is rotatable with respect to the axial center of the port, and the axial center of the second connecting port of the intermediate body and the axial center of the pipe connecting port of the second body are further crossed to each other to connect the second body to the pipe. The above drawbacks are not solved by providing a fluid universal joint whose main feature is to displace the connection port and the pipe connection port of the first body in all directions.

The fluid universal joint according to the present invention comprises an intermediate body, a first body and a second body.

The intermediate body intersects the axes of the first connection opening and the second connection opening and forms the first connection opening and the second connection opening.

The first body has a connecting portion and a pipe connecting port which are coaxial with each other, and the connecting portion is rotatably attached to the first connecting port of the intermediate body.

In the second body, the connecting part and the pipe connecting port are intersected with each other, and the connecting part is rotatably attached to the first connecting port in the intermediate body.

[0009]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. 1 is a fluid universal joint that connects valves, pumps, boilers, and other fluid devices, and the fluid universal joint 1 is a first connection port 2 Consists of an intermediate body 4 formed with a curved flow path that intersects the axis of the second connection port 3, and a first body 5 and a second body 6 that are detachably attached to the intermediate body 4 and are rotatably mounted. is doing.

The first connection port 2 of the intermediate body 4 is formed in a female shape, and a ring outer groove 8 into which an outer peripheral portion of a retaining ring 7 such as a C-shaped ring is fitted is formed on the inner peripheral surface on the opening end side. While being formed, the opening end portion is formed as a tapered surface 9.

Further, the second connection port 3 of the intermediate body 4 is formed in a male shape, and a seal groove 11 into which a seal member 10 such as an O-ring is fitted is formed on the outer peripheral surface on the opening end side. An inner ring groove 12 into which the inner peripheral side of the retaining ring 7 is fitted is formed on the end side.

The first body 5 is detachably and rotatably attached to the first connecting port 2 so that the pipe connecting port 13 and the connecting portion 14 are coaxial with each other by a linear flow path. At the same time, the connecting portion 14 is formed into a male shape, and a seal groove 11 into which the above-mentioned sealing member 10 is fitted is formed on the outer peripheral surface of the connecting portion 14 on the opening end side, and at the base end side. A ring inner groove 12 is formed in which the inner peripheral side of the retaining ring 7 is fitted.

Further, the second body 6 is detachably attached to the second connecting port 3 and is rotatably attached so that the pipe connecting port 15 and the connecting portion 16 are intersected by a bent flow path. The connecting portion 16 is formed in a female shape, and the ring outer groove 8 into which the outer peripheral portion of the retaining ring 7 is fitted is formed on the inner peripheral surface of the connecting portion 16 on the opening end side, and the opening end portion is formed. It forms a tapered surface 9.

Next, in another embodiment of the fluid universal joint 1, the pipe connection port 15 of the second body 6 is formed as a female connecting portion 17, and the inner periphery of the connecting portion 17 on the opening end side is formed. A ring outer groove 8 into which the outer peripheral portion of the retaining ring 7 is fitted is formed on the surface, and the opening end is formed as a tapered surface 9.

Reference numeral 18 denotes a third body which is detachably attached to the connecting portion 17 of the second body 6 and is rotatably mounted, and the third body 18 is formed similarly to the first body 5.

Next, as for another embodiment of the fluid universal joint 1, as shown in FIG. 3, the second connection port 3 in the intermediate body 4 is extended in the axial direction to form the second body 6 and the third body 18. Is rotated about the axis of the second connection port 3 by 360 degrees or more.

Further, in another embodiment of the retaining ring 7, hook pieces 19, 19a are formed continuously from both ends of a C-shaped ring-shaped body, while the female first connection port 2 and the connection are formed. A notch 20 is formed so as to extend from the open end of the portion 16 and the connecting portion 17 to the outer ring groove 8.

Next, the operation of the fluid universal joint 1 according to the present invention will be described. First, when the fluid universal joint 1 is assembled, when the first body 5 is attached to the intermediate body 4, When the seal member 10 is installed in the seal groove 11 of the connecting portion 14 and the retaining ring 7 is installed in the ring inner groove 12 in a free state, the connecting portion 14 is inserted into the first connecting port 2 of the intermediate body 4, When the retaining ring 7 in the free state is reduced in diameter by the taper surface 9 of the first connection port 2 and reaches the ring outer groove 8 when the retaining ring 7 is returned to the free state, the retaining ring 7 is expanded in diameter and fitted. 1 body 5 is attached to the intermediate body 4.

Further, the connecting portion 16 of the second body 6 is attached to the second connecting port 3 of the intermediate body 4, or the connecting portion 14 of the third body 18 to the connecting portion 17 of the second body 6 in another embodiment. The mounting of is the same as the above, and the description thereof will be omitted.

When the retaining ring 7 having the hook pieces 19 and 19a is used, the retaining ring 7 is reduced in diameter by sandwiching it with pliers or the like so as to narrow the interval between the hook pieces 19 and 19a after mounting. Then, the first body 5, the second body 6, and the third body 18 are removed by removing them from the ring outer groove 8.

Next, regarding changing the pipe connection direction, the intermediate body 4 is configured to be rotatable with respect to the axis X of the linear flow path of the first body 5 and intersects with the axis X. The second body 6 is rotatable with respect to the axis Y of the second connection port 3 of the intermediate body 4, and the pipe connection between the axis Y of the second connection port 3 of the intermediate body 4 and the second body 6. By further intersecting the axis Z of the port 15, the pipe connection port 13 of the second body 6 and the pipe connection port 15 of the third body 18 can be in any direction with respect to the pipe connection port 13 of the first body 5. Can be displaced.

Further, since the pipe connection port 13 and the pipe connection port 15 are rotatably mounted, they can be screwed by rotating only the first body 5 and the third body 18 when connecting the pipe P. .

[0023]

[Effect of device]

 In short, according to the present invention, the first connecting port 2 and the second connecting port 3 intersect with each other along the axis Y, and the intermediate body 4 having the first connecting port 2 and the second connecting port 3 is formed. 1 axis body Z of the connecting portion 14 mounted on the connecting port 2 and the pipe connecting port 13 on the same axis, the connecting portion 16 mounted on the second connecting port 3 of the intermediate body 4, and the pipe connecting port 15 Since the second body 6 and the connecting portion are rotatably connected to each other, the pipe connection port 13 of the second body 6 can be connected to the pipe connection port 13 of the first body 5 in any direction. Since it is possible to have displacement, that is, flexibility, workability is improved compared to forming a predetermined pipe line by combining various pipes according to the positional relationship of front, rear, left and right, and height at the connection port of a conventional fluid-using device. Can be significantly improved and the fluid can be freely By rotating only the first body 5 without rotating the hand 1 itself, the pipe P can be connected, and the work and installation space can be reduced. is there.

[Brief description of drawings]

FIG. 1 is a sectional view of a fluid universal joint according to the present invention.

FIG. 2 is a sectional view of another embodiment of the same as above.

FIG. 3 is a sectional view of another embodiment of the same as above.

FIG. 4 is a plan view showing a variable state of the fluid universal joint.

FIG. 5 is a plan view of another embodiment of the above.

FIG. 6 is a plan view of another embodiment of the above.

FIG. 7 is an exploded perspective view showing a mounting state of a retaining ring according to another embodiment.

FIG. 8 is a partial sectional view of a retaining ring mounting portion.

[Explanation of symbols]

 2 1st connection port 3 2nd connection port 4 Intermediate body 5 1st body 6 2nd body 13 Pipe connection port 14 Connection part 15 Pipe connection port 16 Connection part 17 Connection part

Claims (1)

[Scope of utility model registration request] 1. An intermediate body which intersects the axes of the first connecting port and the second connecting port and which has the first connecting port and the second connecting port, and a connection which is attached to the first connecting port of the intermediate body. Part and a pipe connection port on the same axis, and a connecting part mounted on the second connection port of the intermediate body and a second body intersecting the axis of the pipe connection port. The connection port and the connection part A fluid universal joint characterized in that it is rotatably connected.