Reducing blasting weighting needle assembly

The invention relates to a reducing blasting weighting needle assembly. According to the technical scheme, the reducing blasting weighting needle assembly comprises a needle sleeve with a pressure relief hole, a needle core, a return spring and a guiding cylinder, wherein a blocking shoulder is arra...

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Bibliographic Details
Main Authors XU GANG, XIE YONGJUN, MIAO JIHE, LI HONGMAO, SHEN MINGGANG
Format Patent
LanguageChinese
English
Published 13.06.2012
Subjects
HAND TOOLS
MANIPULATORS
PERCUSSIVE TOOLS
PERFORMING OPERATIONS
PORTABLE POWER-DRIVEN TOOLS
TRANSPORTING
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Summary:The invention relates to a reducing blasting weighting needle assembly. According to the technical scheme, the reducing blasting weighting needle assembly comprises a needle sleeve with a pressure relief hole, a needle core, a return spring and a guiding cylinder, wherein a blocking shoulder is arranged at the rear end of the needle core and can be matched with a rear screw sleeve and a shaft shoulder to limit the needle core axially; a blasting device is fixedly arranged on the rear screw sleeve; an air cavity in the blasting device is communicated with an inner cavity of the needle sleeve and can be communicated with a high-pressure air source; and the diameter of the needle core is the same as the inner diameter of the rear screw sleeve. The reducing blasting weighting needle assembly can impact workpieces during the maximum kinetic energy, has a simple structure, and is low in manufacturing cost, reliable in performance and high in adaptability to the workpieces, marking depth reaches the domestic and int
Bibliography:Application Number: CN20111403078