Hydraulic damper with excellent leak tightness
A hydraulic damper and sealing technology, used in liquid shock absorbers, shock absorbers, shock absorbers, etc., can solve the problems of poor sealing, high processing costs, complex assembly, etc., to achieve good sealing performance and improve service life. , the effect of simple assembly
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Embodiment 1
[0059] see figure 1 , the present invention relates to a hydraulic damper with excellent sealing performance. The damper is specifically a closed cylinder 4. The inner chamber of the cylinder 4 is divided into a first working chamber A by a piston 8 that can slide in the cylinder 4. 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 the cylinder 4 through the 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 lead-out end of the piston rod. The guide sleeve 3 is arranged close to the lead-out end of the piston rod. , The middle cup 7 is set close to the piston 8.
[0062] At least two protruding ...
Embodiment 2
[0068] see Figure 7 , the difference between this 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 bracket 13 sleeved on the shaft to ensure that the sponge is not compressed in the axial direction. In the first embodiment Leather cup 7 uses retaining ring 7 instead, and retaining ring 7 and cylinder block cylinder wall need not be sealed.
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