Sound insulation system, passenger room door, guide groove of rail traffic vehicle and rail traffic vehicle
A rail transit vehicle and door technology, which is applied in the field of rail transit, can solve problems such as poor sound insulation effect, achieve the effect of improving sound insulation performance and reducing sound leakage
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[0017] Such as figure 1 As shown, the sound insulation system of the present invention includes a car door 1 and a guide groove 2; the bottom of the car door 1 is provided with a groove 3; the guide groove 2 is provided with a concave part 4 matching the width of the bottom of the car door 1, and the A convex strip 5 matching the shape and size of the groove 3 is provided in the concave part 4; in the groove 3 between the top of the convex strip 5 and the door 1, the bottom end of the door 1 and the convex strip are 5 and between the recessed parts 4 on both sides are filled with sound-absorbing material 6 .
[0018] First, a groove is processed at the bottom of the door leaf (car door), and the sound-absorbing material is filled in the groove, and the sound-absorbing material is covered and fixed through the orifice plate 7 . Machine the guide groove as figure 1 The groove form of the guide rail with protrusions (convex strips) in the middle is shown, and the grooves on bot...
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