High sealing joint for automobile air conditioner pipeline

Abstract

The utility model discloses a kind of high sealing joint for automobile air conditioner pipeline, the utility model relates to air conditioner pipeline technical field, the utility model, including: pipeline, the end surface of the pipeline is fixedly connected with connecting device, the inner wall of the connecting device is fixedly connected with sealing device The sealing device is sealed by extrusion mode, and the sealing device includes extension pipe;By setting sealing device, in sealing device, rubber ring is installed in the clamping groove of extension pipe inner wall, and the micro gap at the connecting place of pipeline is filled by extrusion deformation, to form initial sealing surface;At the same time, the clamping strip of sliding connection in rubber ring inner wall cooperates with bellows, when pressure is generated in pipeline refrigerant, pressure is transmitted to bellows to make it expand, and then push clamping strip extrude rubber ring, realize pressure self-adapting sealing, ensure that joint in system operation process, even if pressure fluctuation can also maintain efficient sealing, effectively prevent the purpose of refrigerant leakage.

Claims

1. A high sealing joint for automotive air conditioning piping comprising: Pipeline (1), characterized in that: The end face of the pipe (1) is fixedly connected to a connecting device (2), and the inner wall of the connecting device (2) is fixedly connected to a sealing device (3). The sealing device (3) seals the pipe by compression. The sealing device (3) includes an extension tube (30), the inner wall of which is provided with a groove (31), and a rubber ring (32) is slidably connected to the inner wall of the groove (31). The end face of the extension tube (30) is fixedly connected to the end face of the connecting device (2), and the outer wall of the rubber ring (32) is slidably connected to the inner wall of the extension tube (30). The inner wall of the rubber ring (32) is slidably connected with a retaining strip (33), and the bottom end of the retaining strip (33) is fixedly connected with a bellows (34). The end of the bellows (34) away from the retaining strip (33) is fixedly connected to the end face of the pipe (1). The connecting device (2) includes a first connector (20), and a second connector (21) is provided on the end face of the first connector (20). Nuts (23) are threadedly connected to the outer walls of the first connector (20) and the second connector (21). The end faces of the first connector (20) and the second connector (21) are in contact with each other. The end of the first connector (20) away from the second connector (21) is fixedly connected to the end face of the pipe (1). The inner wall of the second connector (21) is fixedly connected to the outer wall of the pipe (1).

2. A high sealing joint for air conditioning pipe of automobile according to claim 1, characterized in that: The end of the extension tube (30) away from the slot (31) is fixedly connected to the end face of the first connector (20).

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