Stabilizing device of elevator car and an elevator system

Patent metadata

Field	Value
Publication number	US-11565909-B2
Application number	US-202017086962-A
Country	US
Kind code	B2
Filing date	Nov 2, 2020
Priority date	Nov 6, 2019
Publication date	Jan 31, 2023
Grant date	Jan 31, 2023

Abstract

A stabilizing device of an elevator car and an elevator system. The stabilizing device include a first frame body, a second frame body, a left electromagnetic block, a right electromagnetic block, a left damper and a right damper, wherein the left electromagnetic block and the right electromagnetic block are mounted within the second frame body in a limiting manner in an up-down direction and are moveable in a left-right direction, and the left damper and the right damper are arranged in the up-down direction. The fixed end of the left damper and the fixed end of the right damper are mounted within the second frame body in a limiting manner in the up-down direction, and the movable ends of the left damper and the right damper are connected to the first frame body and are moveable upwardly and downwardly together with the first frame body.

First claim

What is claimed is:

1. A stabilizing device ( 100 ) of an elevator car, including:
a first frame body ( 110 ) fixedly mounted relative to the elevator car ( 13 );
a second frame body ( 120 ) positioned and mounted within the first frame body ( 110 ), wherein the first frame body ( 110 ) and the second frame body ( 120 ) are moveable upwardly and downwardly relative to each other;
a left electromagnetic block ( 130 a ) and a right electromagnetic block ( 130 b ), which are installed in the second frame body ( 120 ) in a limiting manner in an up-down direction, for clamping a guide rail ( 11 ) and generating friction force for preventing the second frame body ( 120 ) from moving up and down relative to the clamped guide rail ( 11 ); and
a left damper ( 150 a ) and a right damper ( 150 b ) arranged along the up-down direction, whose fixed ends ( 151 ) are mounted within the second frame body ( 120 ) in a limiting manner in the up-down direction, and whose movable ends ( 152 ) are connected to the first frame body ( 110 ) and moveable upwardly and downwardly together with the first frame body ( 110 ) under the condition that the guide rail ( 11 ) is clamped by the left electromagnetic block ( 130 a ) and the right electromagnetic block ( 130 b ), so as to reduce movement of the elevator car in the up-down direction;
wherein when electrified, the left electromagnetic block ( 130 a ) and the right electromagnetic block ( 130 b ) generate a force that attracts the guide rail ( 11 ), thereby clamping the guide rail.

2. The stabilizing device ( 100 ) according to claim 1 , wherein the left electromagnetic block ( 130 a ) and the right electromagnetic block ( 130 b ) are arranged in a left-right symmetrical manner along a central plane ( 109 ) of the stabilizing device ( 100 ), and the left damper ( 150 a ) and the right damper ( 150 b ) are arranged in a left-right symmetrical manner along the central plane ( 109 ) of the stabilizing device ( 100 ).

3. The stabilizing device ( 100 ) according to claim 1 , further including:
a left horizontal actuating member ( 140 a ) for pushing the left electromagnetic block ( 130 a ) towards the guide rail ( 11 ); and
a right horizontal actuating member ( 140 b ) for pushing the right electromagnetic block ( 130 b ) towards the guide rail ( 11 );
wherein the left horizontal actuating member ( 140 a ) and the right horizontal actuating member ( 140 b ) are mounted within the second frame body ( 120 ).

4. The stabilizing device ( 100 ) according to claim 3 , wherein the left horizontal actuating member ( 140 a ) and the right horizontal actuating member ( 140 b ) are arranged in a left-right symmetrical manner along a central plane ( 109 ) of the stabilizing device ( 100 ).

5. The stabilizing device ( 100 ) according to claim 3 , further including a control portion configured to:
firstly control, when the elevator car ( 13 ) stops moving, the left horizontal actuating member ( 140 a ) and the right horizontal actuating member ( 140 b ) to push the left electromagnetic block ( 130 a ) and the right electromagnetic block ( 130 b ), respectively, to get close to the guide rail ( 11 ); and then control, when both the left electromagnetic block ( 130 a ) and the right electromagnetic block ( 130 b ) substantially contact with the guide rail ( 11 ), the left electromagnetic block ( 130 a ) and the right electromagnetic block ( 130 b ) to be energized electrified to clamp the guide rail ( 11 ).

6. The stabilizing device ( 100 ) according to claim 3 , further including:
a left horizontal reset component ( 149 a ) for resetting the left electromagnetic block ( 130 a ) clamping the guide rail ( 11 ) away from the guide rail ( 11 ); and
a right horizontal reset component ( 149 b ) for resetting the right electromagnetic block ( 130 b ) clamping the guide rail ( 11 ) away from the guide rail ( 11 ).

7. The stabilizing device ( 100 ) according to claim 3 , wherein the left horizontal actuating member ( 140 a )/the right horizontal actuating member ( 140 b ) comprises a horizontally disposed leading screw and a motor for driving the leading screw; wherein two ends of the leading screw are connected with the inner side face of the second frame body ( 120 ) and the left electromagnetic block ( 130 a )/the right electromagnetic block ( 130 b ) respectively, and the left horizontal reset component ( 149 a )/the right horizontal reset component ( 149 b ) is a spring sleeved on the leading screw.

8. The stabilizing device ( 100 ) according to claim 1 , wherein the left electromagnetic block ( 130 a ) and the right electromagnetic block ( 130 b ) are capable of sliding left and right on a guide rail provided inside the second frame body ( 120 ).

9. The stabilizing device ( 100 ) according to claim 1 , further including:
a left vertical reset component ( 159 a ) and a right vertical reset component ( 159 b ) for resetting the second frame body ( 120 ) relative to the first frame body ( 110 ) in the up-down direction.

10. The stabilizing device ( 100 ) according to claim 9 , wherein the left damper ( 150 a )/the right damper ( 150 b ) is a hydraulic buffer, an oil cylinder of the hydraulic buffer corresponds to the fixed end ( 151 ), and a piston rod of the hydraulic buffer corresponds to the movable end ( 152 ).

11. The stabilizing device ( 100 ) according to claim 10 , wherein the left vertical reset component ( 159 a )/the right vertical reset component ( 159 b ) is a spring sleeved on the piston rod.

12. The stabilizing device ( 100 ) according to claim 1 , wherein the second frame body ( 120 ) is mounted within the first frame body ( 110 ) in a limiting manner in a horizontal direction by means of a horizontal fixture ( 111 ); and, when the elevator car ( 13 ) moves in the up-down direction, the second frame body ( 120 ) is moveable upwardly and downwardly relative to the first frame body ( 110 ) by taking the horizontal fixture ( 111 ) as a guide component.

13. The stabilizing device ( 100 ) according to claim 1 , further including a third vertical reset component ( 112 ) for resetting the second frame body ( 120 ) relative to the first frame body ( 110 ) in the up-down direction.

14. The stabilizing device ( 100 ) according to claim 1 , wherein the second frame body ( 120 ) is approximately a square frame structure.

15. The stabilizing device ( 100 ) according to claim 1 , wherein the first frame body ( 110 ) is approximately a square frame structure and the second frame body ( 120 ) is nested in an inner cavity of the first frame body ( 110 ).

16. An elevator system ( 10 ) including a traction medium ( 14 ), an elevator car ( 13 ) and a guide rail ( 11 ), further including the stabilizing device ( 100 ) according to claim 1 .

17. A stabilizing device ( 100 ) of an elevator car, including:
a first frame body ( 110 ) fixedly mounted relative to the elevator car ( 13 );
a second frame body ( 120 ) positioned and mounted within the first frame body ( 110 ), wherein the first frame body ( 110 ) and the second frame body ( 120 ) are moveable upwardly and downwardly relative to each other;
a left electromagnetic block ( 130 a ) and a right electromagnetic block ( 130 b ), which are installed in the second frame body ( 120 ) in a limiting manner in an up-down direction, for clamping a guide rail ( 11 ) and generating friction force for preventing the second frame body ( 120 ) from moving up and down relative to the clamped guide rail ( 11 ); and
a left damper ( 150 a ) an

Assignees

• Otis Elevator Co

Inventors

• Gou Xingang

Classifications

• B66B17/34 Primary

  Safe lift clips; Keps · CPC title

• B66B5/18

  and applying frictional retarding forces · CPC title

• B66B1/36 Primary

  Means for stopping the cars, cages, or skips at predetermined levels · CPC title

• B66B9/00

  Kinds or types of lifts in, or associated with, buildings or other structures (characterised by control systems B66B1/00; apparatus for raising or lowering persons on stages of theatres A63J5/12) · CPC title

• B66B11/0293 Primary

  Suspension locking or inhibiting means to avoid movement when car is stopped at a floor (locking car to building while loading to avoid movement B66B17/34) · CPC title