Manual drilling machine having drill pin protection function

Abstract

The invention discloses a manual drilling machine having a drill pin protection function. The manual drilling machine comprises a base, a supporting rod, a machine head and a height adjustment mechanism; the height adjustment mechanism comprises a lower bottom plate; fixing pipes are arranged on the lower bottom plate; sliding grooves are formed in the side walls of the fixing pipes; a movable pillar is sleeved with one fixing pipes correspondingly; one end of each movable pillar is located in the corresponding fixing pipe; limiting strips are arranged on the side walls of the end parts of the movable pillars in a raised manner, and stretch out of the side walls of the fixing pipes through the sliding grooves and drive the movable pillars to slide along the sliding grooves; external threads are formed in the outer side walls of the fixing pipes in the axial directions; the outer side walls of the fixing pipes are connected and sleeved with adjustment rings through threads; the other ends of the movable pillars stretch out of the end parts, far from the lower bottom plate, of the fixing pipes, and are provided with an upper bottom plate; a drill pin is sleeved by a protection pipe; and the protection pipe comprises a first pipe section, a second pipe section and a third section pipe that are detachably connected in the axial direction sequentially. The effect of adjusting the distance between a to-be-drilled object and the drill pin can be realized; and the protection pipe is adopted for preventing the drill pin from deforming, so that effective drilling by a user is facilitated.

Description

technical field [0001] The invention relates to a punching machine, in particular to a manual punching machine with a drill needle protection function. Background technique [0002] Manual punching machine, also known as manual punching machine, manual punching machine, etc., is mainly designed based on the principle of leverage, and uses manual methods to drive the executive parts of the punching machine to move up and down to cooperate with the lower die to complete the punching. The manual punching machine is mainly used for: punching, slicing, corner cutting, etc. of paper, plastic, leather, cloth and other materials. The height of the base of the existing manual punching machine is fixed, and the distance between the hole to be punched and the drill cannot be adjusted by adjusting the height of the base, especially for the drilling head designed with the principle of leverage and the movable distance is small. Under such circumstances, it is impossible to perform suffi...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is that when the movable distance of the punching head designed using the principle of leverage is small, it is impossible to adjust the distance between the hole to be punched and the drill by adjusting the height of the base, so as to perform sufficient and effective drilling. Drilling operation, and the drill needle is easy to deform when punching thick or hard materials. The purpose is to provide a manual punching machine with drill needle protection function, which can adjust the distance between the object to be drilled and the drill needle. The distance between them, and there is a drill protection tube to prevent the deformation of the drill, which is beneficial to the user for effective drilling

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