Solenoid valve device and automatic paper feeder using same
An automatic paper feeding, solenoid valve technology, applied in valve device, valve operation/release device, valve lift and other directions, can solve the problems of collision sound, human unpleasant, etc. Collision sound effect
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[0058] In order to reduce the collision sound, the solenoid valve device 2 of the present invention is specially provided with a noise reduction device, please refer to figure 2 , which is a schematic structural diagram of a preferred embodiment of the solenoid valve device of the present invention. The solenoid valve device 2 includes a solenoid valve body 20 , a solenoid valve shaft 21 , a spring 22 , an annular groove 213 and a muffler ring 23 . The solenoid valve body 20 has a solenoid coil 201 and a groove 202. The solenoid coil 201 surrounds the solenoid valve body 20 to generate magnetic force. The inner wall 2023 is located between the groove side wall 2021 and the groove bottom 2022, and the groove inner wall 2023 and the groove side wall 2021 have an included angle a1, and the groove inner wall 2023 and the groove bottom 2022 have another included angle a2.
[0059] The solenoid valve shaft 21 has a top 211 at one end of the solenoid valve shaft 21 and a flange 21...
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