Ventilation window locking device
A locking device, ventilation window technology, applied in ventilation layout, roof, building fastening devices, etc., can solve the problems of inconvenient production and assembly, high production cost, complex structure, etc., to expand the technical scope, convenient production and assembly, structural simple effect
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Embodiment 1
[0051] Embodiment 1: With reference to Figure 1, Figure 2 and Figure 3, the ventilation window locking device 2 in this embodiment is installed on the left side of the top end of the inner frame 1, or can be installed on the right side of the top end of the inner frame 1, or Install together.
[0052] 4 and 5, the ventilation window locking device in this embodiment is composed of a housing 21, a pull rod rack 25, a pin 22, a positioning pin 23, a base 24, a valve plate 28, and a transmission gear mechanism 26.
[0053] The housing 21 has an accommodating space, the transmission gear mechanism 26 and the valve disc 28 are encapsulated on an outer frame 99 fixed, and the pull rod rack 25 and the plug 22 extend out of the housing 21 and can move back and forth.
[0054]The tie rod rack 25 is connected to the ventilation plate 3 through a connecting piece 27, the tie rod rack 25 is hinged with the connecting piece 27, and the connecting piece 27 is fixed on the ventilation plate 3 by...
Embodiment 2
[0061] Embodiment 2: As shown in FIG. 8, the base 24 in this embodiment is provided with a sliding rail 241 for the pin 22 to move back and forth, and the rest is the same as the embodiment 1.
Embodiment 3
[0062] Embodiment 3: As shown in FIG. 9, FIG. 10 and FIG. 11, the transmission gear mechanism 26 in this embodiment includes a first gear 261 and a second gear 262 meshing with the first gear 261. The first gear 261 is The gear input end that meshes with the longitudinal rod gear teeth 252, and the second gear 262 is the gear output end that meshes with the latch gear teeth 222. In addition, the movement direction of the plug 22 is perpendicular to the longitudinal direction of the ventilation plate 3, which is suitable for the structure where the plug hole 98 is opened on the outer frame 99 along the top to facilitate the back and forth movement of the plug 22 through two guide posts 22a vertically arranged on the base 24. Others are the same as in Example 1.
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