CN201045431Y - Rotatable sealing pipe joint - Google Patents

Abstract

The utility model discloses a rotatable sealed pipe joint. It includes a fixed joint body and a transition joint connected with the fixed joint body. The transition joint can be provided with a connecting hole, and the rotating shaft section of the rotatable rotating joint body is set in the connecting hole of the transition joint. A sealing device is provided between the rotating shaft section of the joint body and the connecting hole of the transition joint. The rotatable rotary joint body of the rotatable sealing pipe joint can rotate 360 degrees along the connection axis, which not only facilitates maintenance and use, but also makes the direction of the connecting pipeline unrestricted. Therefore, the pipe joint is convenient to install and connect, and is not affected by the pipeline layout. The utility model has a simple structure and is suitable for pipelines on vehicles and mechanical equipment.

Description

Rotatable sealing pipe joint

technical field

The utility model belongs to a pipeline connector, in particular to a connector for an air pipe on a vehicle.

Background technique

The gas pipe joints commonly used in automobiles are generally precision-cast one-piece joints. The biggest disadvantage is that the angle must be fixed during installation. The pipeline layout is often restricted by the installation location, and it is difficult to arrange the dense pipelines. It is very reasonable, causing difficulties in installation; some parts also need to make a fuss about the pipe, such as making a formed pipe, etc., so the processing cost is higher.

Contents of the invention

The purpose of the utility model is to provide a rotatable sealed pipe joint which is easy to install, so as to solve the above problems.

The technical scheme of the utility model is: a rotatable sealed pipe joint, which includes a fixed joint body and a transition joint connected with the fixed joint body. In the connecting hole of the joint, a medium guide hole is provided in the rotating shaft section, and a sealing device is arranged between the rotating shaft section of the rotating joint body and the connecting hole of the transition joint.

The rotatable rotary joint body is composed of a rotary shaft section of the rotary joint body and a connecting section, the axes of the rotary shaft section of the rotary joint body and the connecting section are the same or have an included angle.

The sealing device includes an axial sealing device and/or a shaft end sealing device between the rotary shaft section of the rotary joint body and the connection hole of the transition joint.

A sealing ring is arranged between the fixed joint body and the transition joint.

The rotatable rotary joint body of the rotatable sealing pipe joint can rotate 360 degrees along the connection axis, which is convenient for maintenance and use, and also makes the direction of the connecting pipeline unrestricted. Therefore, the pipe joint is easy to install and connect, and is not affected by the pipeline layout. The utility model has a simple structure and is suitable for pipelines on vehicles and mechanical equipment.

Description of drawings

Attached schematic diagram of the structure of the rotatable sealed pipe joint

Detailed ways

This embodiment is used to illustrate the technical solution of the utility model, and the protection scope of the utility model is not limited to the structure of this embodiment.

As shown in the drawings, the connecting section of the fixed connector 5 is provided with an external connecting thread 5-1, and the other section is provided with an internal connecting thread 5-2, and the internal connecting thread 5-2 is connected with the external thread 3-1 on the transition joint 3. The transition joint 3 defines an inner connecting hole 3-2. The transition joint 3 is "T" shaped. An axial sealing device is provided between the fixed joint body 5 and the transition joint 3. In this embodiment, a sealing ring 1-1 is provided at the upper end of the inner screw hole of the fixed joint 5.

The inner connecting hole 3-2 of the transition joint 3 is provided with a rotatable rotating shaft section 2-1 of the rotating joint body. The rotatable swivel body 2 is composed of a swivel shaft section 2-1 and a connecting section 2-2. The axis of the rotating shaft section 2-1 of the swivel joint body is the same as the axis of the connecting section 2-2 or has an included angle, which can be any angle according to requirements. That is, the rotatable rotary joint body 2 composed of the rotary shaft section 2-1 of the rotary joint body and the connecting section 2-2 can be a straight pipe or an elbow. In this embodiment, the axis of the rotating shaft section 2-1 of the rotary joint body and the axis of the connecting section 2-2 are perpendicular to each other. The rotating shaft section 2-1 is provided with a medium guide hole 2-3.

The sealing device provided between the rotating shaft section 2-1 of the rotary joint body and the connecting hole 3-2 of the transition joint includes an axial sealing device and/or a shaft end sealing device. Both the axial sealing device and the shaft end sealing device are used here. The shaft end sealing device includes a seal ring groove 3-4 on the end face of the transition joint 3, a seal ring groove 2-4 on the shaft side of the rotary shaft section 2-1 of the rotary joint body, and a seal ring groove 3-4 on the end face of the transition joint and the rotary joint. A sealing ring 4 is arranged in the sealing ring groove 2-4 on the shaft side of the rotating shaft section of the joint body. The section of the sealing ring 4 is rectangular or square. The inner wall 5-3 of the flow channel hole of the fixed joint body is provided with a boss 5-4 at the outer end surface of the sealing ring 4, which separates the outer end surface of the sealing ring 4 from the medium flow channel. The axial sealing device includes at least one sealing groove provided on the rotating shaft section 2-1 of the adapter body, and a sealing ring is arranged in the sealing groove. In this embodiment, the rotating shaft section 2-1 of the adapter body is provided with two sealing grooves 1-2 along the axial direction, and sealing rings 1-3 are arranged in the sealing grooves 1-2.

Because the joint adopts the shaft end seal, when the medium pressure in the flow channel increases, the medium pressure acts on the end face of the sealing ring 4, and the sealing ring 4 is pressed more tightly to the rotary joint body. The rotating shaft section 2-1 is connected with the transition joint. The tighter the joint of the hole 3-2 is, the better the sealing effect is and the possibility of air leakage is reduced.

Claims (9)

1. A rotatable sealed pipe joint, which includes a fixed joint body, is characterized in that it also includes a transition joint connected with the fixed joint body, the transition joint can be provided with a connecting hole, and the rotating shaft section of the rotatable rotary joint body is provided with In the connecting hole of the transition joint, a medium guide hole is provided on the rotating shaft section, and a sealing device is arranged between the rotating shaft section of the rotating joint body and the connecting hole of the transition joint. 2. The rotatable sealing pipe joint according to claim 1, characterized in that said fixed joint body is threadedly connected with the transition joint. 3. The rotatable sealing pipe joint according to claim 1 or 2, characterized in that a sealing ring is provided between the fixed joint body and the transition joint. 4 . The rotatable sealed pipe joint according to claim 1 , wherein the sealing device comprises an axial sealing device and/or a shaft end sealing device between the rotary shaft section of the rotary joint body and the connection hole of the transition joint. 5. The rotatable sealed pipe joint according to claim 4, wherein the shaft end sealing device includes a sealing ring groove on the end face of the transition joint, a sealing ring groove is provided on the shaft side of the rotating shaft section of the rotary joint body, and a sealing ring groove is provided on the transition joint. A sealing ring is arranged in the sealing ring groove of the end face and the sealing ring groove of the shaft side of the rotating shaft section of the rotary joint body. 6. The rotatable sealing pipe joint according to claim 5, characterized in that the section of the sealing ring is rectangular or square. 7. The rotatable sealed pipe joint according to claim 4, wherein the axial sealing device comprises at least one sealing groove formed on the rotating shaft section of the rotary joint body, and a sealing ring is arranged in the sealing groove. 8. The rotatable sealed pipe joint according to any one of claims 1 or 4 to 7, characterized in that the rotatable rotary joint body is composed of a rotary shaft section of the rotary joint body and a connecting section, and the rotary shaft section of the rotary joint body The axis and the axis of the connecting section are the same or have an included angle. 9. The rotatable sealed pipe joint according to claim 5, characterized in that the inner wall of the flow channel hole of the fixed joint body is provided with a boss at the outer end surface of the sealing ring, which separates the outer end surface of the sealing ring from the medium flow channel .

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