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Automatic powering-off mechanism of elevator buffer

An automatic power-off and buffer technology, applied in the fields of elevator hydraulic buffers and automatic power-off mechanisms, can solve the problems of twisting and deformation of the switch contact rod, and the contact rod cannot be used again, and achieves a compact size, simple structure and reasonable design. Effect

Inactive Publication Date: 2015-12-09
镇江朝阳机电科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For hydraulic shock absorbers, in order to be able to automatically reset after compression, a return spring is usually installed. When the return spring is compressed, it will twist in addition to the elastic force to generate a torsional force. Practice has shown that this torsional force will make the buffer piston rotate. In severe cases It will cause the switch stem to be distorted and deformed, causing the stem to be unusable after the buffer is reset and must be replaced

Method used

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  • Automatic powering-off mechanism of elevator buffer
  • Automatic powering-off mechanism of elevator buffer
  • Automatic powering-off mechanism of elevator buffer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] An elevator buffer automatic power-off mechanism as shown in the figure is characterized in that it includes a contact switch 1, a countersunk through hole 2 and a proximity switch 3, and the countersunk through hole 2 is located on the end cover of the hydraulic buffer 4 5 on the left side, the contact switch 1 is correspondingly matched with the countersunk through hole 2, and the proximity switch 3 is fixedly arranged on the lower end surface on the left side of the end cover 5 of the hydraulic buffer 4;

[0029] The contact switch 1 is arranged vertically, and its section is T-shaped, including a rod cap 6 and a switch contact rod 7. The rod cap 6 is cylindrical, and its diameter is R1. The center of the rod cap 6 is provided with a vertical The screw hole, the switch contact rod 7 is cylindrical, its diameter is R2, the upper end of the switch contact rod 7 is provided with threads, the rod cap 6 is connected to the upper end of the switch contact rod 7 through the ...

Embodiment 2

[0046] Such as Figure 7 , 8 As shown, in this embodiment, the travel switch 17 replaces the proximity switch 3 in Embodiment 1, and the lower end of the switch contact rod 7 is a hemisphere, and the travel switch 17 is a normally closed travel switch. When the travel switch 17 is installed Ensure that the mechanical contacts can fully contact with the switch contact rod 7 when it descends.

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Abstract

The invention provides an automatic powering-off mechanism of an elevator buffer. The automatic powering-off mechanism of the elevator buffer is simple in structure and reasonable in design and comprises a contactor switch, a countersunk through hole and a proximity switch, wherein the contactor switch comprises a rod cap and a switch feeler rod, the switch feeler rod is sleeved with a reset spring, the contactor switch is correspondingly matched with the countersunk through hole and can freely and vertically move, and the sensing end of the proximity switch points to the vertical direction of vertical movement of the contactor switch. The automatic powering-off mechanism has the advantages that the whole automatic powering-off mechanism is installed on an end cap, and the mechanism can wholly rotate with the end cap when being compressed. Therefore, the problem of twist deformation of the switch feeler rod does not occur, the automatic powering-off mechanism can be used for a long time, and the switch feeler rod is very short, small in size, simple in structure and low in cost.

Description

Technical field [0001] The invention involves an automatic electric disconnection mechanism of an elevator buffer, especially the elevator hydraulic cushioner, which belongs to the field of elevator manufacturing. Background technique [0002] With the improvement of people's living standards and the rapid development of the real estate industry, the number of elevator installation has become an explosive growth, and the probability of faults in elevators continues to increase. Therefore, people also pay more and more attention to the safety of elevators.The elevator buffer is a fault in the elevator. When the car or the heavy speed falls or rushes, the speed limiter and safety tongs cannot complete the last safety device that protects the life or cargo safety when it is fulfilled. [0003] At present, the elevator buffer is mainly a hydraulic buffer. The basic working principle can be checked in the relevant information, which will not be repeated here.For the buffer, there are ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66B5/28
Inventor 李西伟曹涛付永忠莫根林卢青
Owner 镇江朝阳机电科技有限公司