JP3242930U - Coupling device - Google Patents

Abstract

A coupling device that efficiently adjusts the angle between coupled pipe members through rotation between them. A first assembly portion (11) and a first inclined end face (12) are provided at a first end portion, and a second assembly portion (13) is provided at a second end portion. A first pipe member communicating with a second assembly portion through a passage, the passage being inclined with respect to the first assembly portion, a connection pipe 21 and an extension portion 22, the connection pipe comprising a first joint 211 and a second inclined end surface 212, the connecting pipe is provided with a first conduit, the extension is provided with a second conduit communicating with the first conduit, a second pipe member having a first joint rotatably attached to the first assembly and having the second slanted end face facing the first slanted end face. [Selection drawing] Fig. 2

Description

The present invention relates to a coupling device.

Many of the tools are driven by high-pressure fluid, and the tool and the high-pressure fluid source are usually connected by a coupling device, so that attachment and detachment can be performed simply and efficiently. However, the conventional connecting device is usually a fixed structure whose angle cannot be adjusted, and can be smoothly rotated according to the working environment, and the operating angle and orientation are greatly limited.

Therefore, it is expected to provide a novel and inventive coupling device to solve the above problems.

SUMMARY OF THE INVENTION A primary object of the present invention is to provide a coupling device that can efficiently adjust the angle between pipe members through rotation therebetween.

In order to achieve the above objects, the present invention comprises: a first pipe member having a first end provided with a first mounting portion and a first inclined end face, a second end provided with a second mounting portion, the first mounting portion communicating with the second mounting portion through a passage, the hole diameter of the first mounting portion being larger than the hole diameter of the passage, and the passage being inclined with respect to the first mounting portion; a connection pipe and an extension portion; a second pipe member including a second inclined end face, wherein the connecting pipe is provided with a first conduit, the extension portion is provided with a second conduit communicating with the first conduit, the first conduit is inclined with respect to the second conduit, the first joint is rotatably fitted to the first assembly portion, and the second inclined end face faces the first inclined end face.

1 is a perspective view of a preferred embodiment of the present invention; FIG. 1 is an exploded view of the preferred embodiment of the present invention; FIG. FIG. 4 is a cross-sectional view of the connecting device in a straight state according to the preferred embodiment of the present invention; 1 is a cross-sectional view of a connecting device in a folded state according to a preferred embodiment of the present invention; FIG.

The following examples illustrate possible embodiments of the invention, but are not intended to limit the invention. A preferred embodiment of the present invention is shown in FIGS. 1-4, wherein a coupling device 1 of the present invention includes a first pipe member 10 and a second pipe member 20. As shown in FIG.

The first pipe member 10 has a first assembly portion 11 and a first inclined end surface 12 at its first end, and a second assembly portion 13 at its second end.

The second pipe member 20 includes a connection pipe 21 and an extension portion 22, the connection pipe 21 includes a first joint 211 and a second inclined end surface 212, the connection pipe 21 is further provided with a first pipe line 213, the extension portion 22 is provided with a second pipe line 221 communicating with the first pipe line 213, the first joint 211 is rotatably inserted into the first assembly portion 11, and the second inclined end surface. 212 faces the first inclined end surface 12, whereby the relative angle between the second pipe member 20 and the first pipe member 10 can be efficiently adjusted by rotation. The extension portion 22 of the second pipe member 20 is connected to a high-pressure fluid source, and the extension portion 22 may be integrally formed with the second pipe member 20 or assembled with the second pipe member 20. The hole walls of the first joint 211 and the first assembly 11 do not block the passage 14, and thus the fluid can smoothly flow without being blocked by the first assembly 11 and the first joint 211. In this embodiment, when the second pipe member 20 rotates with respect to the first pipe member 10 until the second assembly portion 13 is parallel to the second pipe line 221 (FIG. 3), the center line of the second assembly portion 13 and the center line of the second pipe line 221 are displaced from each other.

Preferably, the first assembly portion 11 is provided with a first channel 111, the second assembly portion 13 is provided with a second channel 131, and the first channel 111 and the second channel 131 communicate through the passage 14. Preferably, the inner peripheral wall of the first assembly part 11 is provided with a first annular groove 112, the outer peripheral wall of the first joint 211 is provided with a first annular recess 214 corresponding to the first annular groove 112, and a plurality of first anti-friction members (e.g. rollers) 50 are accommodated between the first annular groove 112 and the first annular recess 214, which is advantageous for the relative rotation of the first assembly part 11 and the first joint 211. is.

In this embodiment, the connecting device 1 includes a second joint 31 and a flow path 32, the second joint 31 is screwed to the second assembly portion 13, and the flow path 32 communicates with the second assembly portion 13. Further includes a third pipe member 30. The third pipe member 30 further includes an end pipe 33 located on the opposite side of the second joint, the inner diameter of the end pipe 33 is smaller than the inner diameter of the second joint 31, the end pipe 33 may be a threaded connection pipe or a pipe other than a threaded connection pipe, and the end pipe 33 is useful for assembling with an external device or tool.

In this embodiment, the connecting device 1 further includes a restricting member (eg, a screw member) 40, the first end portion is provided with a first receiving hole 15 communicating with the first annular groove 112, the restricting member 40 is inserted (eg, screwed) into the first receiving hole 15, the restricting member 40 can effectively prevent the first anti-friction member 50 from being detached, and the first anti-friction member 50 can be efficiently removed and replaced. is also advantageous. A first fitting groove 215 is provided around the outer circumference of the first joint 211, and a leak-proof ring 60 is fitted in the first fitting groove 215 and contacts the first assembly portion 11, thereby obtaining a sealing effect.

Specifically, the first end of the first pipe member 10 further includes a first partial ball 17, the first assembly portion 11 is provided with the first partial ball 17, the second pipe member 20 further includes a second partial ball 23, the connecting pipe 21 is provided with the second partial ball 23, and a ball joint is advantageous for rotation. The first pipe member 10 further includes a small diameter portion 18 connected between the first partial ball 17 and the second end portion. The first partial ball 17 protrudes radially from the small diameter portion 18, and an appropriately increased length facilitates the rotation operation. The second end of the first pipe member 10 is provided with an inner stepped portion 16 on the inner peripheral side, and the third pipe member 30 is provided with an outer stepped portion 34 facing the inner stepped portion 16 on the outer peripheral side. The passage 14, the first conduit 213 and the second conduit 221 have the same hole diameter, which is advantageous for stable fluid flow.

Reference Signs List 1 connecting device 10 first pipe member 11 first assembly portion 111 first channel 112 first annular groove 12 first inclined end face 13 second assembly portion 131 second channel 14 passage 15 first receiving hole 16 inner stepped portion 17 first partial ball 18 small diameter portion 20 second pipe member 21 connecting pipe 211 first joint 212 second inclined end face 2 13 first pipeline 214 first annular recess 215 first fitting groove 22 extension 221 second pipeline 23 second partial ball 30 third pipe member 31 second joint 32 flow path 33 end pipe 34 outer stepped portion 40 restriction member 50 first anti-friction member 60 leak stop ring 70 seal ring

Claims (10)

A coupling device,
a first pipe member having a first assembly portion and a first inclined end face provided at a first end portion, a second assembly portion provided at a second end portion, the first assembly portion communicating with the second assembly portion through a passage, the hole diameter of the first assembly portion being larger than the hole diameter of the passage, and the passage being inclined with respect to the first assembly portion;
a connecting pipe and an extension, wherein the connecting pipe includes a first joint and a second inclined end face, the connecting pipe is provided with a first conduit, the extension is provided with a second conduit communicating with the first conduit, the first conduit is inclined with respect to the second conduit, the first joint is rotatably inserted into the first assembly portion, and the second inclined end face faces the first inclined end face. 2. The coupling device of claim 1, wherein said first assembly is provided with a first channel, said second assembly is provided with a second channel, said first channel and said second channel communicating through said passageway. 2. The coupling device according to claim 1, wherein the inner peripheral wall of the first assembly portion is provided with a first annular groove, the outer peripheral wall of the first joint is provided with a first annular recess, and the plurality of first anti-friction members are accommodated between the first annular groove and the first annular recess. 2. The connecting device according to claim 1, further comprising a third pipe member including a flow path communicating with a second joint and said second assembly, said second joint being screwed to said second assembly. 5. The coupling device according to claim 4, wherein the third pipe member further includes an end pipe located on the opposite side of the second joint, the inner diameter of the end pipe being smaller than the inner diameter of the second joint. 6. The connecting device according to claim 5, further comprising a restricting member, wherein the first end of the first pipe member is provided with a first receiving hole penetrating therethrough communicating with the first annular groove, and the restricting member is inserted into the first receiving hole. 5. The connecting device according to claim 4, wherein a first fitting groove is provided around the outer circumference of said first joint, and a leak prevention ring is fitted in said first fitting groove and abuts against said first assembly portion. The coupling device according to claim 1, wherein the first end of the first pipe member further includes a first partial ball, the first assembly portion is provided with the first partial ball, the second pipe member further includes a second partial ball, and the connecting pipe is provided with the second partial ball. A first annular groove is provided in the inner peripheral wall of the first assembly portion, a first annular recess is provided in the outer peripheral wall of the first joint, and a plurality of first anti-friction members are accommodated between the first annular groove and the first annular recess,
The hole walls of the first joint and the first assembly do not block the passage,
The first assembly is provided with a first channel, the second assembly is provided with a second channel, the first channel and the second channel are in communication via the passage,
A first fitting groove is provided around the outer periphery of the first joint, and a leak prevention ring is fitted in the first fitting groove and abuts the first assembly portion,
the first end further includes a first partial ball, the first assembly portion is provided with the first partial ball, the second pipe member further includes a second partial ball, the connecting pipe is provided with the second partial ball,
The first pipe member further includes a small diameter portion connected between the first partial ball and the second end, the first partial ball projecting radially from the small diameter portion,
The second end of the first pipe member is provided with an inner stepped portion on the inner peripheral side, the third pipe member is provided with an outer stepped portion facing the inner stepped portion on the outer peripheral side, a seal ring is fitted in the second joint, and is interposed between the inner stepped portion and the outer stepped portion,
7. The coupling device according to claim 6, wherein the passage, the first conduit and the second conduit have the same hole diameter. The coupling device according to any one of claims 1 to 9, wherein when the second pipe member rotates with respect to the first pipe member until the second assembly portion is parallel to the second pipeline, the center line of the second assembly portion and the center line of the second pipeline are displaced.

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