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Guard bar door lock structure

A door lock structure and guardrail technology, which is applied in the direction of building structure, building fastening devices, wing leaf fastening devices, etc., can solve the problems of high cost of use, complex structure, poor reliability, etc., to ensure stability and reliability , Turn on and off the effect for easy operation

Inactive Publication Date: 2017-02-22
WUXI KETONG ENG MACHINERY MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The lifting platform is the most important part of the elevator. The outer guardrail and the guardrail door will be installed on the lifting platform. In order to ensure the safety of the operator during the lifting process, the guardrail door must be locked. The existing locking device has a simple structure and is reliable. Poor reliability, while some with good reliability often have complex structures and high cost of use

Method used

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Examples

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Embodiment Construction

[0011] See figure 1 , figure 2 , image 3 As shown, a guardrail door lock structure, which includes a door lock fixing seat 1, a limiting plate 3 is installed on the door lock fixing seat 1 through a fixing bolt 2, and a card slot 4 is opened on the limiting plate 3, and the card slot 4 is installed There is a pin shaft 5, on which a rotatable locking plate 6 and a reset torsion spring 7 are installed, the reset torsion spring 7 is a double-ended torsion spring, and the two pins 1 of the double-ended torsion spring are against the locking plate 6. The middle connecting rod 7-2 leans against the door lock fixing seat 1, the lower end of the locking plate 6 is provided with a hook 8, and the lower end surface of the hook 8 is an inclined plane; the locking plate 6 is also equipped with an L-shaped push-pull handle 9. 10 among the figure is guardrail door.

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Abstract

The invention relates to the technical field of lifting platform locks, in particular to a guard bar door lock structure. According to the guard bar door lock structure, a guide bar door can be opened and closed conveniently, the structure is simple, and meanwhile it is guaranteed that use is safe and reliable. The guard bar door lock structure comprises a door lock fixing seat. A limiting plate is mounted on the door lock fixing seat through fixing bolts and provided with a clamping groove. A pin shaft is mounted in the clamping groove and provided with a rotatable locking plate and a reset torsional spring. A clamping hook is arranged at the lower end of the locking plate, and the lower end face of the clamping hook is an inclined face.

Description

technical field [0001] The invention relates to the technical field of lifting platform locks, in particular to a guardrail door lock structure. Background technique [0002] The lifting platform is the most important part of the elevator. The outer guardrail and the guardrail door will be installed on the lifting platform. In order to ensure the safety of the operator during the lifting process, the guardrail door must be locked. The existing locking device has a simple structure and is reliable. The reliability is poor, and some with good reliability often have complex structures and high cost of use. Contents of the invention [0003] In order to solve the above problems, the present invention provides a guardrail door lock structure, which can conveniently realize the opening and closing of the guardrail door, has a simple structure and ensures safe and reliable use. [0004] Its technical solution is as follows: a guardrail door lock structure, which is characterized...

Claims

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Application Information

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IPC IPC(8): E05C19/12
CPCE05C19/12
Inventor 张功义
Owner WUXI KETONG ENG MACHINERY MFG
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