Ladder leveling device and ladder
OwnerQianwen Liuinventor
Life of this patent
Estimating the term…
Abstract
A ladder leveling device and a ladder are provided. The ladder leveling device includes a base, a lifting support, and a support plate, where the lifting support includes a support frame, a sliding frame, a rod seat, and a sliding rod. The support frame is arranged on the base; the sliding frame supports the support plate and is slidably mounted on the support frame; the rod seat is fixed in the support frame and has a fulcrum therein; and the sliding rod has one end supporting the support plate and the other end slidably inserted into the rod seat, at least one adjustment plate is provided on the sliding rod, the adjustment plate has one end supported by the fulcrum and the other end being a free end for adjustment, and the free end maintains downward under the action of a limit spring.
Claims11
A ladder leveling device, comprising a base, a lifting support, and a support plate, wherein the lifting support comprises:
- a support frame, wherein the support frame is arranged on the base;
- a sliding frame, wherein the sliding frame supports the support plate and is slidably mounted on the support frame;
- a rod seat, wherein the rod seat is fixed in the support frame and has a fulcrum therein;
- and
- a sliding rod, wherein the sliding rod has one end supporting the support plate and the other end slidably inserted into the rod seat, at least one adjustment plate is provided on the sliding rod, the adjustment plate has one end supported by the fulcrum and the other end being a free end for adjustment, and the free end maintains downward under the action of a limit spring.
A ladder leveling device, comprising a base and a lifting support, wherein the lifting support comprises:
- a support frame, wherein the support frame is arranged on the base;
- a sliding frame, wherein one end of the sliding frame is provided with a connecting portion, and the sliding frame is slidably mounted on the support frame;
- a rod seat, wherein the rod seat is fixed in the support frame and has a fulcrum therein;
- a sliding rod, wherein the sliding rod has one end arranged on the connecting portion and the other end slidably inserted into the rod seat, at least one adjustment plate is provided on the sliding rod, the adjustment plate has one end supported by the fulcrum and the other end being a free end for adjustment, and the free end maintains downward under the action of a limit spring;
- and
- a connecting member, wherein the connecting member is used to connect the sliding frame to a ladder.
Dependencies are inferred from the claim text.