Safety device, elevator safety system and elevator system
AssigneeOtis Elevator Company
InventorLifeng Zhang
Life of this patent
Estimating the term…
Abstract
The present invention provides a safety device, an elevator safety system and an elevator system. The elevator safety system comprises the safety device which comprises a shell having a vertical passage for elevator guide rails to pass through, the safety device further comprises a first brake block on a first side of the vertical passage, and a second brake block on a second opposite side of the vertical passage; and a safety device carrier for supporting the safety device and fixedly connected to an elevator car; wherein the shell of the safety device is obliquely and movably mounted on the safety device carrier.
Claims15
An elevator safety system, comprising:
- a safety device, comprising a shell having a vertical passage for elevator guide rails to pass through, the safety device further comprising a first brake block on a first side of the vertical passage, and a second brake block on a second opposite side of the vertical passage, the first brake block and the second brake block movable with respect to the shell;
- and
- a safety device carrier for supporting the safety device and fixedly connected to an elevator car;
- wherein the shell of the safety device is obliquely and movably mounted on the safety device carrier such that the shell is configured to move in a direction oblique to the vertical passage;
- wherein the shell defines a first cavity on the first side of the passage, the first brake block is a sliding wedge block, and the sliding wedge block has a shape matching the first cavity, and is capable of operably sliding in the first cavity up and down;
- wherein the first cavity on the first side of the passage is trapezoid, a first oblique guide groove is defined in an outer side of an oblique side of the first cavity, and the first oblique guide groove is oriented to intersect with the oblique side of the first cavity.
A safety device, comprising a shell having a vertical passage for elevator guide rails to pass through, the safety device further comprising a first brake block on a first side of the vertical passage, and a second brake block on a second opposite side of the vertical passage, the first brake block and the second brake block movable with respect to the shell, wherein the shell of the safety device is provided with oblique guide grooves such that the shell is configured to move in a direction oblique to the vertical passage;
- wherein the shell defines a first cavity on the first side of the passage, the first brake block is a sliding wedge block, and the sliding wedge block has a shape matching the first cavity, and is capable of operably sliding in the first cavity up and down;
- wherein the first cavity on the first side of the passage is trapezoid, a first oblique guide groove is defined in an outer side of an oblique side of the first cavity, and the first oblique guide groove is oriented to intersect with the oblique side of the first cavity.
Dependencies are inferred from the claim text.