Fixed point limiting type multistable reversing valve and work station switching method thereof
A multi-stable, directional valve technology, applied in the field of solenoid valves, can solve the problems of increasing the use cost of the solenoid directional valve and the power consumption of the electromagnet, and achieve the effects of simple structure, low cost and stable performance
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Embodiment 1
[0030] Such as figure 1 As shown, a fixed-point limiting multi-stable reversing valve includes a valve seat 1, a valve core 2, a first electromagnet 3, a second electromagnet 4, a moving permanent magnet 5, a moving suction block 6 and a fixed-point limiting bit agency7. Both the first electromagnet 3 and the second electromagnet 4 are de-energized electromagnets; the de-energized electromagnets have magnetism when no power is applied, and the magnetism disappears after being energized. The moving sucked block 6 adopts a magnetic material (a material that can be magnetized). The valve seat 1 is provided with a valve core placement channel. The first electromagnet 3 and the second electromagnet 4 are respectively fixed at both ends of the spool placement channel. The inner end of the first electromagnet 3 is provided with a buffer ring. The spool 2 is elongated and forms a sliding pair with the spool placement channel. The valve core 2 is located between the first electrom...
Embodiment 2
[0043] Such as Figure 5 As shown, a fixed-point limit multi-stable reversing valve includes a valve seat 1, a valve core 2, a first electromagnet 3, a moving suction block 6, a valve core positioning spring 8 and a fixed-point limit mechanism 7. The structures and relative positions of the valve seat 1, the valve core 2 and the fixed-point limit mechanism 7 are the same as those in the first embodiment.
[0044] The first electromagnet 3 is fixed at one end of the spool placement passage. The moving suction block 6 is fixed on the end of the valve core 2 facing the first electromagnet 3 . The first electromagnet 3 adopts an electrified type electromagnet, which generates a magnetic field when electrified, and generates suction to the moving suction block 6 . A valve core positioning spring 8 is arranged between the first electromagnet 3 and the moving sucked block 6 .
[0045] The working position switching method of the fixed-point limiting multi-stable reversing valve is...
Embodiment 3
[0047] A fixed-point limiting multi-stable reversing valve, the fixed-point limiting mechanism 7 in this embodiment is different from the fixed-point limiting mechanism 7 in Embodiment 1, and the rest are identical.
[0048] Such as Figure 6 As shown, the fixed-point limit mechanism 7 in this embodiment includes a limit electromagnet 7-1, a limit permanent magnet 7-5 and a limit block 7-4. The limit electromagnet 7-1, the limit permanent magnet 7-5, and the limit stopper 7-4 are arranged in the corresponding limit placement groove according to the order from outside to inside. The limit electromagnet 7-1 is fixed with the limit placement groove. The limit permanent magnet 7-5 is fixed with the inner end of the limit block 7-4. The limit block 7-4 forms a sliding pair with the limit placement groove. The inner end of the limit stopper 7-4 is stepped, corresponding to the step opening at the inner end of the limiter placement groove, forming a limit to the outer limit positi...
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