Hydraulic damper with excellent leak tightness
A hydraulic damper and sealing technology, which is applied in the direction of liquid shock absorber, shock absorber, shock absorber, etc., can solve the problems of poor sealing, high processing cost, complicated assembly, etc., achieve good sealing performance and improve service life , the effect of simple assembly
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Embodiment 1
[0059] Referring to Fig. 1, the present invention relates to a hydraulic damper with excellent sealing performance. The damper is specifically a closed cylinder 4, and the inner chamber of the cylinder 4 is divided into a first cylinder 4 by a piston 8 that can slide in the cylinder 4. Studio A and a second studio B. The first working chamber A and the second working chamber B are separated by the piston 8 and filled with a hydraulic fluid.
[0060] The damper has a piston, a piston rod 2 which is led out of a cylinder 4 through a first working chamber A in a sealing manner, the end of which is connected to the front connecting piece 1 .
[0061] A guide sleeve 3, a front leather cup 5, a spring 6 and a middle leather cup 7 are closely arranged in the cylinder body 4 between the piston 8 and the leading end of the piston rod. The guide sleeve 3 is arranged close to the leading end of the piston rod. , The middle cup 7 is set close to the piston 8.
[0062]At least two protru...
Embodiment 2
[0068] Referring to Fig. 7, the difference between the present embodiment and the first embodiment is that the spring of the elastic element 6 is replaced by a sponge, and the center of the sponge is provided with a support 13 sleeved on the shaft to ensure that the sponge is not compressed in the axial direction. Leather cup 7 in example one is used retaining ring 7 instead, and retaining ring 7 does not need sealing with cylinder body cylinder wall.
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