JPH036397B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a pipe connection device for detachably connecting a pair of pipes, for example, a pair of pipes provided on a container and a lid of the container, respectively.

[Technical background of the invention and its problems]

For example, piping is placed inside a container that has a removable lid, and when the lid is removed, the piping separates into the lid and the container, and when the lid is attached, the separated piping is reconnected. Assuming a configuration in which In this case, flange joints are generally considered, but each time the lid is attached or removed, the flange must be joined or separated, and if the lid and container are misaligned, the flange joint described above will eliminate the misalignment. There was a risk that it would not be possible to absorb the amount of water and prevent leakage at the connection portion reliably.

[Purpose of the invention]

It is an object of the present invention to be able to automatically connect and separate pipes when performing attachment/detachment operations, and to be able to absorb any misalignment of the piping and reliably maintain sealing performance. The purpose is to provide a connection device.

[Summary of the invention]

That is, the pipe connection device according to the present invention is a pipe connection device that removably connects a pair of pipes arranged with a space, the pipe connection device being provided on the outer periphery of the pair of pipes and closing the space. A housing is connected to one of the pipes, and a sleeve is provided on the inner circumference of the housing and abuts the other pipe. By biasing this sleeve in the direction of the other pipe, the sleeve is connected to the other pipe. The structure includes a spring that presses against the tip.

Therefore, it is possible to automatically connect or disconnect a pair of pipes by simply bringing them closer or separating them at a predetermined distance, and by urging the sleeve in the direction of the other pipe with a spring, sufficient contact surface pressure can be applied. Since the sealing performance can be maintained reliably.

[Embodiment of the Invention] An embodiment of the present invention will be described with reference to FIGS. 1 and 2. Reference numeral 1 in FIG. 1 indicates a container, and a lid 2 is provided to close the upper opening of the container 1. A pipe 3 is disposed within the container 1. This piping 3 is composed of a lower piping 4 that penetrates the side wall 1A of the container 1 and is disposed inside the container 1, and an upper piping 6 that is fixed to the inside of the lid 2 via a support member 5. The upper pipe 6 and the lower pipe 4 are detachably connected by a pipe connecting device 7 .

The configuration of the piping connection device 7 will be described below with reference to FIG. 2. The lower pipe 4 and the upper pipe 6 are arranged with a space between them. A housing 8 is provided on the outer periphery of the lower piping 4 and the upper piping 6 so as to close the above-mentioned space. ing.
A sleeve 9 is provided on the inner peripheral side of the housing 8, and its lower inner edge 9A is brought into contact with the upper end of the lower pipe 4. The inner edge 9A of the lower end of this sleeve 9 is formed into a conical shape, while the upper end of the lower pipe 4 is formed into a spherical shape. This is to ensure line contact and maintain sealing performance even if the axes of the sleeve 9 and the lower piping 4 are misaligned. Further, this sleeve 9 has a gap 10 between it and the upper pipe 6 in order to absorb displacement in the axial direction. A seal housing 11 is provided concentrically between the sleeve 9 and the housing 8, and a stepped portion 11A is formed at the lower end of the seal housing 11. A seal ring 12 is installed between them. A coil spring 13 is installed between the stepped portion 11A and the upper pipe 6. This coil spring 13
The sleeve 9 is urged toward the lower piping 4 through the seal housing 11 to ensure sealing between the sleeve 9 and the lower piping 4.

The connection operation between the upper pipe 6 and the lower pipe 4 will be explained based on the above configuration. When the lid body 2 is removed, the coil spring 13 is in a free state, and the sleeve 9 and the seal housing 11 are both supported from below by an annular portion 8A projecting toward the inner circumference of the lower end of the housing 8. When the lid 2 is attached to the container 1, the lower end of the sleeve 9 first comes into contact with the upper end of the lower pipe 4. Then, the biasing force of the coil spring 13 acts gradually through the seal housing 11, and the sleeve 9 is pressed toward the lower pipe 4 side. Place lid 2 into container 1
When the device is completely installed, the coil spring 13 can provide sufficient contact surface pressure between the sleeve 9 and the lower pipe 4 to ensure reliable sealing. Further, a seal between the sleeve 9 and the seal housing 11 is maintained at the contact portion between the sleeve 9 and the seal housing 11, and a seal between the seal housing 11 and the housing 11 is performed by the seal ring 12. The seal housing 11 also has the function of helping the sleeve 9 slip due to its axial movement.

According to the pipe connection device according to the present embodiment, the upper pipe 6 and the lower pipe 4 can be automatically connected and separated when the lid body 2 is attached and detached. In addition, since the upper end of the lower pipe 4 is made spherical and the inner edge 9A of the lower end of the sleeve 9 is made conical, even if the axes of the upper pipe 6 and the lower pipe 4 are misaligned, line contact is ensured, and the biasing force of the coil spring 13 Since sufficient contact surface pressure can be obtained, sealing performance can be maintained reliably.

〔Effect of the invention〕

As described in detail above, the pipe connection device according to the present invention is a pipe connection device for removably connecting a pair of pipes arranged with a space, and in which the pipe connection device is provided on the outer periphery of the pair of pipes. A housing that closes a space and is connected to one of the pipes, a sleeve that is provided on the inner circumferential side of the housing and abuts the other pipe, and the sleeve is pressed in the direction of the other pipe. The configuration includes a spring that presses the tip of the pipe against the tip of the other pipe.

Therefore, it is possible to automatically connect or disconnect a pair of pipes by simply bringing them close to each other within a predetermined distance or separating them, and by biasing the sleeve in the direction of the other pipe with a spring, sufficient contact surface pressure can be applied. Since the sealing performance can be maintained reliably.

[Brief explanation of drawings]

1 and 2 are diagrams showing an embodiment of the present invention. FIG. 1 is a cross-sectional view showing the structure of a container, a lid, and piping, and FIG. 2 is a cross-sectional view of a piping connection device. 4...Lower piping, 6...Upper piping, 7 ...Piping connection device, 8...Housing, 9...Sleeve,
13...Coil spring.

Claims (1)

[Scope of Claims] 1. A pipe connection device for removably connecting a pair of pipes arranged with a space, provided on the outer periphery of the pair of pipes to close the space and which A housing connected to one of the pipes, a sleeve provided on the inner peripheral side of the housing and abutting the other pipe, and by biasing this sleeve in the direction of the other pipe, the sleeve is attached to the tip of the other pipe. A piping connection device characterized by comprising a pressing spring. 2. The inner edge of the lower end of the sleeve has a conical shape, and the contact portion of the other pipe with the sleeve has a spherical shape, and the spherical portion and the conical portion form a seal. Piping connection device according to scope 1.