Dustproof safety valve
A safety valve, dust-proof technology, applied in the field of hydraulic pumps, can solve problems such as affecting the steering assist function of the pump and being easy to block.
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[0008] The structure of the dust-proof safety valve of the present invention is as follows: figure 1 As shown, the sleeve 1 and the cone valve seat 4 are fitted with interference, the fine filter 2 and the coarse filter 3 are fixed on the end face of the sleeve 1 and put into the inside of the cone valve seat 4 together with the sleeve 1, the fine filter 2 and the coarse filter The center of the net 3 is located on the center line of the hole 5 on the cone valve seat 4 . The oil before entering the small hole 5 with a diameter of 1 mm is firstly filtered through the filter. The first layer of fine filter prevents the 1 mm hole from being blocked by particles. The second layer of coarse filter mainly plays a supporting role to ensure that the filter is under oil pressure It cannot deform and fall off under the action of the steering pump, so as to ensure that the small hole will not be blocked, and the reliability of the steering pump application can be guaranteed.
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