Low-disturbance sealing device for sediment sampler
A technology of sealing device and sampler, which is applied in the direction of sampling device, etc., can solve the problems of sample loss, sampling failure, sediment disturbance, etc., and achieve the effect of simple operation, light weight and small volume
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[0016] The present invention will be further described below in conjunction with accompanying drawing.
[0017] Such as figure 1 As shown, a low-disturbance sealing device for a sediment sampler includes two parts: a piston sealing mechanism and an air sealing mechanism:
[0018] 1) Piston sealing mechanism: including piston rod 1, bolt 2, upper support flange 3, sealing ring 4, piston 5, sealing ring 6, lower support flange 7 and sampling cylinder 8. The piston mechanism forms the upper port seal of the sampling cylinder 8, the two ends of the sampling cylinder 8 are open, the piston 5 is movable in the sampling cylinder, the top of the piston is sequentially provided with the sealing retaining ring 4 and the upper supporting flange 2, and the upper supporting flange 2. The sealing retaining ring 4 and the piston 5 are fixedly connected by bolts 2, and one end of the piston rod 1 is fixedly connected with the upper supporting flange 3 by threads; the bottom of the piston 5 i...
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