| 摘要 |
The invention discloses a gas autosampler comprising a propeller, a transmission device, a sample chain and a sample feeding cone. As the injector of the present invention is directly used as a sample feeding bottle, the transfer times can be reduced and the pollution possibility can be reduced. Meanwhile, the sample chain can increase and reduce the position number according to the requirements, and the motor controlling can feed the samples for multiple times, so that the samples can be automatically fed. |
| 主权项 |
1. A gas autosampler, comprising:
a propeller, a transmission device, a sample chain and a sample feeding cone; wherein the propeller comprises a first stepping motor, a screw rod, a sliding block and an optical shaft which are sequentially connected, the sliding block moveable along the optical shaft, and an L-shaped pressing block connected on the sliding block; wherein the transmission device comprises a second stepping motor and a driving gear which are connected together, the driving gear matched with a driven gear by means of a belt, and the driven gear connected with a transmission gear by means of a transmission shaft; wherein the sample chain comprises at least one cylinder on one end of which is fixed with a spring hoop, the cylinder arranged in a gear position of the transmission gear, an injector fixed on the other end of the spring hoop, and an outlet of the injector passing through the cylinder and extending to the other end of the cylinder; and wherein one end of the L-shaped pressing block pushes a push rod of the injector and presses a one-way valve connected with the outlet of the injector into the cone of the sample feeding cone. |
