Safe shell type injector

Abstract

The invention discloses a safe shell type injector. The safe shell type injector comprises a screw injector body and a safe protection shell, wherein the screw injector body comprises an injector outer sleeve, a screw seat, a core rod, a rubber plug and a needle, the screw seat is located at the front end of the injector outer sleeve, the core rod and the rubber plug are located in the injector outer sleeve, the needle is arranged on the screw seat, the safe protection shell comprises a sleeve ring and a needle tube protection shell, the sleeve ring is fixedly arranged on the screw seat in a sleeving way, the needle tube protection shell is hinged to the sleeve ring, a longitudinal opening is formed in the needle tube protection shell, and the needle tube protection shell can be pivoted from an open position to a closed needle protection position; when the needle tube protection shell is located in the open position, the needle is exposed; when the needle tube protection shell is located in the closed needle protection position, the needle is located in the longitudinal opening of the needle tube protection shell. According to the safe shell type injector disclosed by the invention, one safe protection shell is just added on the basis of a conventional injector, and the safe shell type injector is beneficial for cost control; compared with other safe injection needle type products, the identical performance of the positions of safe needle tube seats can be ensured after the products are assembled, and the safe shell type injector is beneficial for follow-up packaging of the products.

Description

technical field [0001] The invention relates to a safety shell type syringe. Background technique [0002] The existing safety shell type syringes are combined with a syringe and a safety needle. The safety needle includes a needle tube, a needle tube seat and a safety shell on the needle tube seat. This method makes the processing of the safety needle more complicated. The size deviation of the needle during the production process may cause the assembled product to fail to guarantee the identity of the safety needle assembly position of each batch, which is not conducive to subsequent packaging. In addition, during the assembly process of the syringe and the safety needle, the needle tube is easy to be separated from the assembly equipment. A collision occurs, causing the needle tube to bend, which makes the product scrapped and greatly reduces the production efficiency. Contents of the invention [0003] The object of the present invention is to provide a containment ty...

AI Technical Summary

Problems solved by technology

[0002] The existing safety shell type syringes are combined with a syringe and a safety needle. The safety needle includes a needle tube, a needle tube seat and a safety shell on the needle tube seat. This method makes the processing of the safety needle more complicated. The size deviation of the needle during the production process may cause the assembled product to fail to guarantee th

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