Pipe joint structure
A technology for pipe joints and structures, applied in the direction of pipes/pipe joints/fittings, sealing surface connections, passing components, etc., can solve the problems of complex shapes, time-consuming, and large number of parts, and achieve simple shapes of parts and easy operation. The effect of high efficiency and easy assembly
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[0037] figure 1 The state before the connection of the aluminum pipe of 1st Embodiment of this invention is shown. figure 2 Shows the connection completion status. The pipe joint structure is a joint body 1 with an external thread and a cap nut 3 screwed on the external thread 2 to connect the aluminum pipe 4, and its structure is especially suitable for piping for refrigerants. The aluminum pipe 4 and the pipe joint 6 can be connected without performing flare processing on the end portion 5 of the aluminum pipe 4 . The joint main body 1 and the cap nut 3 are made of brass, for example. A refrigerant / refrigerant of an air conditioner or the like flows through the aluminum pipe 4 and the pipe joint 6 .
[0038] image 3 (A) shows the sleeve 7 for compression deformation made of aluminum. The sleeve 7 for compression deformation has two U-shaped concave peripheral grooves 9 on the outer peripheral surface 8 . Such as figure 1 , figure 2 As shown, the compression defo...
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