Automatic Locking Device for Snow Skid Chains
OwnerLijun CHEN, Yonggang LIUinventors
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Abstract
This invention discloses an automatic locking device for snow anti-skid chains. Wherein the snow anti-skid chain comprises a ratchet wheel lock catch and a anti-skid chain; the anti-skid chain is respectively fixed at the buckle and the outer part of the housing aforesaid, and extends towards three directions. The ratchet wheel lock catch is used to make the anti-skid chain to attach to automobile tires firmly and is controlled by pressing two buttons on its lower side, which is different from existing operational actions of braking off and twisting. The pressing action is simple and available for one hand operation. The overall structure is simple and reliable, conforming to use habits of control actions by users.
Claims8
An automatic locking device for a snow anti-skid chain, it characteristics are as follows.
- A housing. It includes the first and the second spindle set perpendicular to the bottom of the housing;
- Energy storage elastic member set into the first spindle;
- A rotation ratchet wheel. Limit-position teeth and positioning teeth are respectively on its edge, and axle hole is set in its center for the passing through of the first spindle;
- A locking buckle. It is provided with a through hole adapted to the second spindle, and one of its end further comprises a fixed tooth that engages with the limit-position tooth to restrict the forward rotation of the rotation ratchet wheel;
- A release button. Its one end is against one end of the locking buckle that stays away from the fixed tooth. The locking buckle is driven to separate from the rotation ratchet wheel with the downward pressing of the release button;
- A rotary buckle. It is linked with the end of the release button, and is jammed and stopped in the positioning tooth with the downward pressing of the release button to limit the reverse rotation of the rotation ratchet wheel;
- A release limit-position buckle. It is linked with the release button. When the release limit-position buckle is pressed downward, the spring inside it drives the release button to reset.
Dependencies are inferred from the claim text.