Novel pulley crossbow

Abstract

The invention discloses a novel pulley crossbow. The novel pulley crossbow comprises a crossbow body. A trigger device used for controlling emitting from the crossbow is arranged at one end of the crossbow body. A bolt pushing assembly used for pushing a bolt is connected to the trigger device. A pulley device and a movable chord are arranged on the crossbow body, wherein the pulley device is usedfor driving the bolt pushing assembly to move, and the movable chord is used for being connected with the pulley device and the bolt pushing assembly. The pulley device comprises at least one set ofmovable pulleys and force storage springs for resetting a pulley. A positioning groove matched with the pulley to slide is formed in the crossbow body. The movable chord is arranged on the pulley in asliding mode so that the pulley can be driven to move in the positioning groove. One end of the movable chord is connected with the bolt pushing assembly, and the other end of the movable chord is fixed to the crossbow body. According to the novel pulley crossbow, the plurality of spiral force storage springs are used for replacing plate springs with large occupied spaces, the built-in chord is used for replacing an externally-arranged chord, and the corresponding pulley is matched, so that tightening force required in the chord pulling process is greatly reduced, and a larger chord leaving initial speed can be obtained by the crossbow.

Description

Technical field [0001] The invention relates to the technical field of bows and arrows, in particular to a pulley crossbow with a novel structure. Background technique [0002] The crossbow is an extremely important long-range attack weapon in the cold weapon era. It has the characteristics of long range, high hit rate, and high lethality. It can be manufactured into individual crossbows, ballistas and other structures according to needs to attack different types. aims. With the development of hot weapons, crossbows have gradually withdrawn from the military arena. In recent years, with the expansion of the battlefield of anti-terrorism and special operations, the crossbow has good concealment due to its low sound, low heat, and no light. Therefore, the crossbow has once again been favored by the military and police forces of various countries. [0003] At this stage, with the development of materials, the structure of the crossbow body and crossbow piece has been improved compar...

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a new type of pulley crossbow, which can solve the problems of ordinary crossbows such as carrying and using, occupying a large space, and having a large winding force.

Images