Fixed type door lock
A fixed, door lock technology, applied in the field of locks, can solve the problems of small working load, easy loosening and automatic opening of the door lock, and achieve the effect of stable structure, stable rotation and extended service life of the door lock.
Inactive Publication Date: 2019-12-24
广州锦宏科技有限公司
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AI Technical Summary
Problems solved by technology
The working principle of the rotary cam lock is to rotate the key to drive the lock cylinder and the lock shaft to rotate, and then drive the lock tongue to rotate, so as to realize the opening and closing of the door lock. In some situations that may cause vibration, it is easy to loosen and automatically open; many existing door locks can withstand a small amount of working load
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[0030] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.
[0031] It should be noted that if there is a directional indication (such as up, down, left, right, front, back...) in the embodiment of the present invention, the directional indication is only used to explain that it is in a specific posture (as shown in the drawings). If the specific posture changes, the relative positional relationship, movement, etc. of the components below will also change the directional indication accordingly.
[0...
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The invention provides a fixed type door lock. The fixed type door lock comprises a lock body, a lock cylinder, a lock shaft and a spring bolt. A containing cavity with two ends open is formed in thelock body. A rotation limiting part is arranged in the containing cavity. The lock cylinder is arranged in the containing cavity. The lock cylinder is provided with a spiral groove. The spiral grooveis provided with a protrusion part. The lock shaft is sleeved with the lock cylinder. The lock shaft is provided with a threaded hole. The spring bolt is provided with a through hole. A bolt penetrates through the through hole and is connected with the threaded hole in the lock shaft. According to the fixed type door lock, a rotating groove is formed in the lock cylinder, the protrusion part is arranged on the rotating groove, and the phenomenon that the door lock is automatically opened due to vibration after being closed can be effectively avoided.
Description
Technical field [0001] The invention relates to the field of locks, in particular to a fixed door lock. Background technique [0002] The cam lock, or cam lock, is a kind of lock that controls the rotation of the lock nail through its internal structure. According to the different lock nail structure, it is divided into a plum blossom pin lock, a triangle cam lock, and a double-sided pin lock. The working principle of the cam lock is to rotate the key to drive the lock cylinder and the lock shaft, and then drive the bolt to rotate, so as to realize the opening and closing of the door lock. Because of its simple structure, when the cam lock is used in trains, motor cars, etc. In some cases where vibration may occur, it is easy to loosen and automatically open; many existing door locks can withstand a small amount of work load. Summary of the invention [0003] The purpose of the present invention is to provide a fixed door lock that can effectively prevent the door lock from autom...
Claims
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IPC IPC(8): E05B83/36E05B85/24E05B85/00
CPCE05B83/363E05B85/00E05B85/24
Inventor 朱士宏吕文强张银富
Owner 广州锦宏科技有限公司