Inward-opening door type adjustable anti-theft lock bolt

A technology of locking the bolt and opening the door, which is applied in the field of anti-theft locks, and can solve problems such as the failure of the bolt to reset normally, the failure of the bolt, and the easily damaged key.

Inactive Publication Date: 2013-03-27
HUANGSHI UNIVERSE AUTO EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the existing inner-opening type anti-theft lock bolt, once the compression spring used is assembled, its elastic force cannot be adjusted. If the spring elastic force used is too tight, it will be very laborious for the user to use the key to open the door, and the key is easy to be damaged. If the spring force used is too loose, the door bolt may not reset normally, resulting in failure of the door bolt

Method used

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  • Inward-opening door type adjustable anti-theft lock bolt
  • Inward-opening door type adjustable anti-theft lock bolt

Examples

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Embodiment Construction

[0008] Figure 1 to Figure 2 Shown in is a specific embodiment of the present invention, a door bolt of the present invention with an adjustable anti-theft lock of inner opening type includes a housing 1, a screw 2, a handle 3, a movable baffle 5, a compression spring 6, a block 7, a shaft 8 and bolt head 9, movable baffle 5 is connected two adjusting screws 4 by fine thread, and the left end face of compression spring 6 contacts with the right end of movable baffle 5. A gap fit is adopted between the shaft 8 and the movable baffle 5 to ensure that the shaft 8 moves left and right relative to the inner hole of the movable baffle 5 .

[0009] When the user uses the key to open the door, with the rotation of the key, the lever 10 will swing, and the compression spring 6 will be compressed by the stopper 7. At this time, the door bolt head 9 will move to the left to realize the door opening action; The elastic force of spring 6 resets door bolt head 9 to realize the action of lo...

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Abstract

The invention discloses an inward-opening door type adjustable anti-theft lock bolt. The inward-opening door type adjustable anti-theft lock bolt comprises a casing (1), a screw (2), a handle (3), a moving stopping plate (5), a compression spring (6), a stopping block (7), a shaft (8) and a bolt head (9), wherein the moving stopping plate (5) is connected with two adjusting screws (4) through fine threads, the left end face of the compression spring (6) contacts with the right end face of the moving stopping plate (5), and the shaft (8) is in clearance fit with the moving stopping plate (5). The bolt is simple in structure, easy to assemble, adjustable in spring elasticity, reliable in working, easy to unlock and long in service life.

Description

Technical field: [0001] The invention relates to an anti-theft lock, in particular to an inner-opening adjustable anti-theft lock bolt. Background technique: [0002] In the existing inner-opening type anti-theft lock bolt, once the compression spring used is assembled, its elastic force cannot be adjusted. If the spring elastic force used is too tight, it will be very laborious for the user to use the key to open the door, and the key is easy to be damaged. If the spring force used is too loose, the door bolt may not be able to reset normally, resulting in failure of the door bolt. Invention content: [0003] The object of the present invention is to provide a kind of inner opening type adjustable anti-theft lock bolt with simple structure, easy assembly, adjustable spring force, reliable operation, easy unlocking and long service life. [0004] In order to achieve the above-mentioned purpose, the door bolt of the present invention is an adjustable anti-theft lock with a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E05B15/10
Inventor 黄凌志熊卫兵
Owner HUANGSHI UNIVERSE AUTO EQUIP
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