Noise-proof device convenient to assemble

The utility model discloses a noise-proof device convenient to assemble, which belongs to the technical field of noise-proof devices and comprises a shell, two movable plates are movably connected in the shell, and T-shaped movable blocks are fixedly connected to two side surfaces of the two movable plates. The device has the beneficial effects that the first bolt, the first threaded hole and the T-shaped movable block are arranged, one end of the first bolt is far away from the T-shaped movable block by unscrewing the first bolt, the T-shaped movable block moves in the T-shaped movable groove by moving the two movable plates in the shell, and the extension length of the movable plates is adjusted; the width of the anti-noise device is conveniently adjusted, one end of a first bolt is in lap joint with the surface of a T-shaped movable block by rotating the first bolt, the position of the T-shaped movable block is conveniently fixed, the position of a movable plate is conveniently fixed, and operation is easy