Fisher appliable to geological exploration and used for jaw-type rope coring drilling tool
A core drilling tool and geological exploration technology, which is applied in the direction of extracting undisturbed core devices, earthwork drilling, wellbore/well components, etc., can solve the problems of wide application and popularization of claw-type cable core drilling tools, work reliability and Decreased stability, inability to perform effective, fast, and reliable card release operations, etc., to avoid further expansion, improve work reliability, and adjust the effect of a large range
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[0023] The present invention will be further described below in conjunction with the accompanying drawings.
[0024] like Figure 1-5 As shown, the present invention includes an ejector rod 1, a jaw catching cover 2, a bracket 3, a release hook 4, a guide sleeve 7, a trigger sliding sleeve 12, a lifting shaft 9, a spring press cover 11, a joint 14, and a joint press cover 17 and the lifting assembly 19. The lifting assembly 19 is screwed with the upper end of the joint pressing cover 17 , and a rubber ring 18 is provided between the pulling assembly 19 and the joint pressing cover 17 . The lower end of the joint gland 17 is screwed with the upper end of the joint 14 . The bottom of the center hole of the joint 14 is provided with a bushing 15 . The joint 14 is a tubular structure, and a plurality of through holes 1401 are formed on the side wall of the joint 14 , and the through holes 1401 are located below the bushing 15 .
[0025] The upper end of the lifting shaft 9 is i...
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