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Device for preventing lift car of lift from accidentally moving

A technology of elevator car and accidental movement, applied in the direction of transportation and packaging, elevators, etc., can solve the problems of danger, low, unreached, brake components provide action instructions, etc., achieve low production cost, simple structure, and ensure elevator safety running effect

Active Publication Date: 2012-07-11
宁波申菱机电科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, elevator use devices are all used to detect the action device when the elevator car is overspeeding. It can only detect that the elevator is in a dangerous state when overspeeding and drive the elevator braking device to slow down and stop the elevator; When the elevator moves slowly at a low speed, the elevator speed limiter of the prior art cannot be detected, so there will be no corresponding action to make the elevator decelerate and stop, thus causing danger; for example, when the elevator is leveling and the elevator car When the door is open, the elevator car is running out of control due to a failure of an electrical component or the elevator car is slowly moving upward or downward due to other unknown factors such as the tra

Method used

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  • Device for preventing lift car of lift from accidentally moving
  • Device for preventing lift car of lift from accidentally moving
  • Device for preventing lift car of lift from accidentally moving

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0026] Embodiment one:

[0027] like figure 1 , figure 2 , image 3 and Figure 4 as shown,

[0028] The present invention is a device for preventing accidental movement of an elevator car, which includes a frame 1, a sheave 3, a sheave shaft 4, a monitoring mechanism, a trigger assembly 9 and an elevator braking device, and the sheave 3 is fixedly mounted on the sheave shaft 4 Above, the two ends of the sheave shaft 4 are installed on the frame 1 through bearings 5; the monitoring mechanism includes an indexing plate 6, an operating electromagnet 10, a rotating block 7 and a movable pin mechanism 8, and the dividing The dial 6 is fixedly mounted on the extended end of the sheave shaft 4, and the dial 6 is provided with a plurality of slots 6.1 evenly spaced along its circumferential direction, and the action electromagnet 10 is fixedly mounted on the frame 1 , the rotating block 7 is rotatably installed on the frame 1, and the rotating block 7 is coaxial with the sheave...

Example Embodiment

[0035] Embodiment two:

[0036] like Figure 5 , Image 6 and Figure 7 as shown,

[0037] The present invention is a device for preventing accidental movement of an elevator car, which includes a frame 1, a sheave 3, a sheave shaft 4, a monitoring mechanism, a trigger assembly 9 and an elevator braking device, and the sheave 3 is fixedly mounted on the sheave shaft 4 Above, the two ends of the sheave shaft 4 are installed on the frame 1 through bearings 5; the monitoring mechanism includes an indexing plate 6, an operating electromagnet 10, a rotating block 7 and a movable pin mechanism 8, and the dividing The dial 6 is fixedly mounted on the extended end of the sheave shaft 4, and the dial 6 is provided with a plurality of slots 6.1 evenly spaced along its circumferential direction, and the action electromagnet 10 is fixedly mounted on the frame 1 , the rotating block 7 is rotatably installed on the frame 1, and the rotating block 7 is coaxial with the sheave shaft 4, th...

Example Embodiment

[0041] Embodiment three:

[0042] like Figure 8 and Figure 9 As shown, the elevator braking device includes a wire rope brake 2 arranged on the elevator car wire rope and an electromechanical trigger mechanism 14, and the trigger end of the electromechanical trigger mechanism 14 is connected with the wire rope brake 2 through a brake wire 13. The electromechanical trigger mechanism 14 is connected with the trigger switch 12 through wires.

[0043]The electromechanical trigger mechanism 14 includes a fixed frame 14.1, a pull pin 14.5, a limit pin 14.3 and an electromagnet 14.2, the fixed frame 14.1 is fixedly installed on the wire rope brake 2, and the pull pin 14.5 is slidably fitted on the fixed frame 14.1, and the head of the pull pin 14.5 is connected to the wire rope brake 2 through the brake wire 13, the pull pin 14.5 is provided with a first return spring 14.6 that can reset it, and the pull pin 14.5 is provided with an annular limit groove 14.7; the limit pin 14.3 ...

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Abstract

The invention discloses a device for preventing a lift car of a lift from accidentally moving, which comprises a machine frame, a rope wheel, a rope wheel shaft, a monitoring mechanism, a triggering assembly and a lift braking device. The monitoring mechanism comprises a graduated disk, a motion electromagnet, a rotating block and a movable pull pin mechanism. The graduated disk is fixedly installed on the extending-out end of the rope wheel shaft and provided with a plurality of clamping grooves evenly distributed at intervals along the circumferential direction of the graduated disk. The motion electromagnet is fixedly arranged on the machine frame, the rotating block is rotatably disposed on the machine frame, the movable pull pin mechanism is fixedly arranged on the rotating block, and pull pins of the movable pull pin mechanism are located in the clamping grooves of the graduated disk on the condition that the motion electromagnet loses power. The triggering assembly is connected with the lift braking device. A triggering structure is arranged on the rotating block and after the rotating block rotates at a certain angle, the triggering structure triggers the triggering assembly to be in motion. The device for preventing the lift car of the lift from accidentally moving is capable of detecting upward or downward low-speed movements due to faults of the lift car of the lift and enabling the lift to slow down and stop.

Description

technical field [0001] The invention relates to the technical field of elevator car safety protection, in particular to a device for preventing accidental movement of the elevator car. Background technique [0002] At present, elevator use devices are all used to detect the action device when the elevator car is overspeeding. It can only detect that the elevator is in a dangerous state when overspeeding and drive the elevator braking device to slow down and stop the elevator; When the elevator moves slowly at a low speed, the elevator speed limiter of the prior art cannot be detected, so there will be no corresponding action to make the elevator decelerate and stop, thus causing danger; for example, when the elevator is leveling and the elevator car When the door is open, the elevator car is running out of control due to a failure of an electrical component or the elevator car is slowly moving upward or downward due to other unknown factors such as the traction force of the ...

Claims

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Application Information

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IPC IPC(8): B66B5/16
Inventor 潘东南左永民童安全励海云
Owner 宁波申菱机电科技股份有限公司
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