Universal through type lock cylinder sliding door lock and method

By designing a universal through-type lock core pulling door lock, the synergistic effect of the lock core assembly, lock box and lock head assembly is used to solve the problem of complex structure and insufficient reliability of existing door locks when opening and closing doors with long strokes vertically, the problem of insufficient structural complexity and reliability of existing door locks when opening and closing doors with long strokes is solved. , realizes long stroke retraction and precise reset of the lock tongue, improving the reliability and user experience of the door lock.

CN119308561AActive Publication Date: 2025-01-14QINGDAO HONGYUJI RAIL TRANSPORTATION EQUIP CO LTD
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Patent Information

Application Number
CN202411616673.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-13
Publication Date
2025-01-14
Estimated Expiration
2044-11-13

AI Technical Summary

Technical Problem

The existing door locks have complex structure, inconvenient operation, insufficient reliability when opening and closing doors vertically for a long stroke, insufficient retraction distance and inaccurate resetting, which affects the door's switching, user experience, durability and safety.

Method used

A universal through-type lock core pulling door lock is designed. Through the synergy of the lock core assembly, lock box and lock head assembly, the spring reset block and limit block are used to realize the long-stroke vertical door opening and closing function to ensure the lock The tongue is precisely reset and stable, the overall structure is compact and easy to operate.

Benefits of technology

The lock tongue retracts the long-stroke vertical door opening and closing function is realized, which improves the reliability and user experience of the door lock, and ensures the stable reset and service life of the lock tongue.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of train door locks, in particular to a universal through type lock cylinder sliding door lock and a method. The lock comprises a long-stroke lock box, a lock cylinder assembly and a lock head assembly, the lock cylinder assembly and the lock head assembly are arranged on the two sides of the lock box, the lock box comprises a shell, and a spring reset block and a limiting block are arranged in the middle of the shell; the lock cylinder assembly comprises a lock cylinder, a limiting plate, a sliding plate and a connecting plate, and a limiting pressing strip for resetting is arranged above the sliding plate; the lock head assembly comprises a lock head body and a spring bolt arranged in the lock head body, and the spring bolt is connected with the tail end of the lock rod. Through the synergistic effect of the lock cylinder assembly, the lock box and the lock head assembly, the function of vertically opening and closing a door in a long stroke is achieved, and the effect that a spring bolt retracts to the maximum of 18 mm is achieved; the upper protrusion on the limiting plate interacts with the edge blocking strip of the sliding plate and synchronously acts with the action that the connecting plate pulls the lock rod through the connecting rod, the overall structure is compact, and operation is convenient and fast. The combination of the spring reset block and the limiting pressing strip ensures the precise reset of the lock cylinder and the sliding plate.
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Citation Information

Patent Citations

  • Door lock capable of automatically limiting bolt

    CN112963055A

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    CN101666190A

  • Locking device, system and method for embarkation door

    CN118793336A

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    EP1582666A2

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    WO2021056371A1