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Upper limit switch for lead screw

A technology of upper limit and switch, applied in the direction of lifting device, lifting frame, etc., can solve the problems of excessive travel, low sensitivity, difficult installation, etc., and achieve the effect of stable and effective limit, high sensitivity, and stable lifting

Pending Publication Date: 2021-06-04
ZHEJIANG XINYI INTELLIGENT DRIVE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the stroke limit in the screw rod is a technical problem at the present stage. The stroke limit switch in the prior art has a complex structure, difficult installation, low sensitivity, and a high failure rate. There are often situations where the limit is not timely, resulting in Excessive travel, unable to get a satisfactory user experience

Method used

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  • Upper limit switch for lead screw
  • Upper limit switch for lead screw

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Experimental program
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Embodiment Construction

[0016] The present invention will be further described below in conjunction with specific examples, but the protection scope of the present invention is not limited thereto.

[0017] like figure 1 and 2 As shown, the upper limit switch for the screw rod of the present invention includes an upper base 1 and a lower base 2, the lower base 2 is provided with a stopper 3, the stopper 3 is provided with a groove 4, and the upper base 1 is equipped with a switch assembly and a The sliding seat 5 and the upper seat body 1 are equipped with a fixed seat 12, and the micro switch 9 is installed on the fixed seat 12. The sliding seat 5 is equipped with a moving bar 6 and a pressing bar 7, the moving bar 6 stretches into the groove 4, and the end of the moving bar 6 is provided with a limiter 8; the other end of the moving bar 6 is provided with a spring 11, and the spring 11 is located at Between the fixed seat 12 and the sliding seat 5. The switch assembly includes a micro switch 9 ,...

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PUM

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Abstract

The invention relates to an upper limit switch for a lead screw. The upper limit switch comprises an upper seat body and a lower seat body, wherein the lower seat body is provided with a blocking piece; the blocking piece is provided with a groove; the upper seat body is provided with a switch component and a sliding seat; the sliding seat is provided with a moving rod and a pressing rod; the moving rod extends into the groove; a limiting body is arranged at the end of the moving rod; the switch component comprises a micro switch; the micro switch is provided with a contact piece; and the pressing rod is located above the contact piece. When the lead screw ascends to the highest position, the contact piece is pressed down through the pressing rod, the micro switch can be effectively turned off, the lead screw stops moving, and a lift platform is prevented from ascending again. The upper limit switch is simple in structure, high in sensitivity and almost zero in failure rate, and contributes to stable lifting and effective limiting of the lift platform.

Description

technical field [0001] The invention relates to a limit switch, which is mainly used for the upper limit of a screw rod and belongs to the technical field of switches. Background technique [0002] The screw rod is the core component of the lifting platform. The quality and function of the screw rod are related to whether the lifting platform is stable and whether it can achieve silent lifting and other issues. Therefore, in order to realize the superiority of the lifting platform, the first task is to find a screw rod with superior performance. However, the stroke limit in the screw rod is a technical problem at the present stage. The stroke limit switch in the prior art has a complex structure, difficult installation, low sensitivity, and a high failure rate. It often occurs that the stroke limit switch is not timely limited, resulting in Excessive travel can not get a satisfactory user experience. [0003] Therefore, developing a stroke limit switch with simple structur...

Claims

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Application Information

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IPC IPC(8): B66F7/28B66F7/00
CPCB66F7/00B66F7/28
Inventor 邬冠群王松苗张重正徐海锋张丹青
Owner ZHEJIANG XINYI INTELLIGENT DRIVE TECH CO LTD