Wall bushing embedding device with extension function
A technology of wall-piercing sleeves and pre-embedded devices, which is applied in the direction of pipes, pipes/pipe joints/fittings, mechanical equipment, etc., and can solve problems such as dry cracks
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[0016] Such as figure 1 , figure 2 and image 3 As shown, the pre-embedded device for wall-piercing casing with telescopic function of the present invention includes an outer casing 1, an inner casing 2 and a sealing module 3, the outer casing 1 and the inner casing 2 are both cylindrical structures, and the The outer sleeve 1 is movably fitted on the inner sleeve 2, and a positioning boss 4 is arranged on the outside of one end of the inner sleeve 2, and the outer sleeve 1 and the inner sleeve 2 cooperate to form a telescopic set, so that The set is pre-buried in the wall, and both ends of the set are provided with a sealing module 3, and the sealing module 3 is used for positioning the plug-in external pipe and line, and can seal the plug-in part.
[0017] The structure of the blocking module 3 is as follows: comprising a flared intubation tube 31, a sealing ring 32 and a locking ring 33, the small mouth end of the flared intubation tube 31 is inserted into the end of the...
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