摘要:
The present invention provides a piston type compressor and a high-pressure gas station having the compressor. The compressor includes a piston that divides a cylinder into a compression chamber and an intake chamber, and a check valve is installed in a bearing wall thereof, so that the output pressure is allowed to be compressed to a high pressure even when the intake pressure significantly decreases.
摘要:
A retractable-type safe self-locking-type self-destructing syringe, which comprises a syringe barrel body (6). A plunger (7) is arranged in the syringe barrel body (6). A needle base is arranged in a barrel neck at an end part of the syringe barrel body (6). A sealing ring (3) is sleeved on the outer wall of the needle base. A head part for needle replacement is formed by the upper part of the needle base. A flexible support engaging piece (4) is arranged within a cavity at the lower part of the needle base. A locking-clutching mechanism matching the end part of the plunger (7) is arranged within the flexible support engaging piece (4).
摘要:
The present application discloses a safety injection needle, comprising a needle base provided on the end potion thereof with a needle tube, characterized in that the needle base being provided at one side with a safety sheath, an elastic telescopic plate being provided at the junction between the safety sheath and the needle base, the safety sheath rotatable about the elastic telescopic plate and having a hollow cavity which is provided therein in sequence with a sheath safety hook and a needle tube safety hook, the needle base being provided with a needle base safety hook cooperating with the sheath safety hook. The safety protection mechanism is integral with the needle base and the multiple-segment engagement mechanism. Compared to the conventional product, the present invention possesses prominent substantive feature and notable development.