Cross bow
A crossbow and cross technology, applied in the field of bow and arrow manufacturing, can solve the problems of high cost, high bowstring emission, noise, etc., and achieve the effect of speed increase and easy winding process
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Example Embodiment
[0033] Embodiment 1.
[0034] like Figure 1-Figure 3 As shown, a crossbow includes a casing 101, an arrow 301 for placing the arrow 201 is arranged on the casing 101, and a trigger 401 is installed at the root of the arrow 301, and a corresponding position on the casing 101 is provided with an easy-to-take The handle 501 is held, and a trigger switch 402 is provided at the handle 501. A bow arm 102 is provided inside the housing 101. The front end of the bow arm 102 is the fixed end 103 and is relatively fixed on the housing 101. The bow arm 102 The rear end can move relative to the housing 101 as the moving end 104 . When the bow arm 102 is squeezed, the moving end 104 (rear end) of the bow arm 102 can move forward to compress and bend the bow arm 102 .
[0035] The bow arm 102 includes two curved sections, one is an upward curved curved section and the other is a downward curved curved section. When the bow arm 102 is squeezed, the two curved sections are respectively bent...
Example Embodiment
[0045] Embodiment two,
[0046] A crossbow includes the wave-shaped bow arm 102 described in the first embodiment, a winding wheel 107 , a main string 108 , a transmission string 106 and a double-slotted guide wheel 105 . A pre-pressing structure 601 is also included. like Figure 7 The shown preloading structure 601 includes a worm gear and worm structure. A string storage wheel 603 is installed on the worm wheel 602 coaxially with the worm wheel 602. When the worm wheel 602 rotates, the string storage wheel 603 is driven to rotate synchronously. The string storage wheel 603 is provided with two fixing posts 6031 , and the string storage wheel 603 is provided with a wire groove 6032 . A secondary string 605 is fixed on the two fixing columns 6031 respectively. When the string storage wheel 603 rotates, the secondary string can be wound in the wire groove 6032 .
[0047] The pre-pressing structure 601 further includes a plurality of guide wheels 606 and a plurality of guide...
Example Embodiment
[0050] Embodiment three,
[0051] A crossbow includes the wave-shaped bow arm 102, a winding wheel 107, a main string 108, and a transmission string 106 as described in the first embodiment. It also includes the pre-pressed structure 601 as described in the second embodiment. Besides, this embodiment also includes a preload wheel 701 .
[0052] like Figure 9 , Figure 10 The shown preload wheel 701 includes two or more guide wheels 702 , a bracket 703 connecting the guide wheels 702 , an elastic member 704 , a bracket seat 705 and a central shaft 706 . The preloading wheel 701 is installed on the auxiliary string on the side of the casing 101 and the path of the driving string 106 . Specifically, the bracket seat 705 is fixed on the housing 101 , the bracket 705 is rotatably connected to the bracket 703 through the central shaft 706 , and two or more guide wheels 702 are installed on the bracket 703 , and the bracket 703 and the bracket seat 705 pass through The elastic ...
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