CN2549114Y

CN2549114Y - Automatic safety lock

Info

Publication number: CN2549114Y
Application number: CN 01233991
Authority: CN
Inventors: 张长建
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-08-25
Filing date: 2001-08-25
Publication date: 2003-05-07
Anticipated expiration: 2011-08-25

Abstract

The utility model provides a door lock with a simple structure, easy manufacture and a strong theftproof and security performance. The utility model is composed of a shell body, a lock pin, an inner handle, a moveable crank, a torsion spring, a spring and an insurance plate. The utility model is characterized in that the crank plays the role of automatically controlling the lock pin through the torsion spring and the lock pin plays the role of automatically locking through the spring. The utility model has the advantages of automatic concealment of the lock pin, automatic control on the performance, an excellent locking function, automatic internal and external locking, key-free back locking, little unlocking strength, convenience, convenient installation and use, safe and reliable theftproof performance.

Description

Automatic anti-theft lock

The utility model relates to a kind of safe-guard door lock.

Existing theftproof lock or Automatic anti-theft lock though its characteristics can automatically lock, can not inside and outsidely automatically lock, if need locking could realize with key back locking, furthermore complex structure, the manufacturing cost height, security performance is little.

The utility model: simple in structure, low cost of manufacture, installation, easy to use can inside and outside automatically locking add insurance, and performance is freely controlled, and anti-theft security is reliable.

The utility model mainly adopts housing 1,7, lock pin 2, movable control pin 3, internal lock 6, insurance knob 5, interior handle 12,17, interior handle control crank 13, movable control pin control crank 14, insurance crank 15, spring 18,

safety plate

21,22, back seat plate 23, lock side 25, set bolt seat and bolt 4 are formed.

Describe in detail below in conjunction with accompanying drawing:

Fig. 1 is a front view in the utility model lock body.

Fig. 2 is the utility model lock body back elevation.

Fig. 3 is the inner face structure chart of Fig. 2.

Fig. 4 is the lock body structure schematic diagram.

Fig. 5 is that lock is untied the back view.

As shown in the figure: 2 is lock pin, tapered end is done an interior straight outer oblique tangent plane groove, opening the movable crank 14 in back as lock is installed in fixed axis 20 and installs and press down torsion spring 24 and make it hook lock pin automatically, interior handle is a rectangle groove 2-1, making crank 13 be installed in fixed axis 19 the higher authorities divides inside and outside varying length two handle bottoms by can groove pressing down crank 15 and be installed in fixed axis 20-1 and installing and press torsion spring 24-1 to make it fix lock pin automatically, when interior handle 12 drives long handle, 17 drive short handles clockwise rotates and drives crank 13 and make it press down crank 15 to break away from stationary states and drive lock pin 2 simultaneously and retreat release, the 9-1 restriction that the pin head is upwarped is unlikely in the setback 25-1, back segment is a little groove 2-2, when after lock is untied, not locking, making safety plate 21 tie down sulculus 2-2 fixes, the 21st, the insurance activity sheet, 21-1 and 21-4 are the rectangle grooves, 21-2 is oblique arc groove, 21-3 is that torsion spring sticks up hook, 21-6 is that torsion spring is in from the groove state movable safety plate 21,21-7 is the torsion spring fixed axis, 22-1 is that 21-5 is the fixed axis that safety plate 22 links to each other with insurance knob 5,22-2 is enclosed within to stir 21 protruding axle in the 21-2, spring 18-1 locks on the rear sleeve, spring withstands on the back seat plate 23, by back seat 23-1, afterbody is fixed dead bolt 16; The 3rd, movable control pin, interior handle are a rectangle groove 3-1, crank 14 and are subjected under the external force effect by this groove, when 3, the top is opened crank 14 and is made 2 to automatically lock and bullet fixing and 9 restrictions that upwarped of crank 15 of insuring are unlikely in the setback 25-3 when retreating, rear sleeve upper reset spring 18, spring withstands on back seat plate 23, fixes dead bolt 16-1 by 23-2, afterbody; The 8th, Fig. 2 is the screw eye of tapered end fixedly; The 10th, Fig. 2 fixed screw eye; The 11st, the raised line of pin body and function; Bolt is fixed lock body by 25-2 screw eye and 4.

Claims

A kind of Automatic anti-theft lock, comprise housing, lock pin, handle in the front and back, movable crank, torsion spring, spring, safety plate, it is characterized in that interior handle (12), (17) be fixedly connected on front and back housing (1), (7) on, crank (13), (14), (15) be fixedly connected on the activity fitted shaft (19) that is fixed on the housing respectively, (20) on, crank (14), (15) be provided with torsion spring (24), lock pin is provided with spring (18), safety plate (21), (22) be provided with torsion spring (21-6), be provided with (4-1) bolt block in the housing (1), back seat plate (23), lock side (25) is provided with (4-1) bolt block in the housing (7), fixing raised line (11), fin (9) etc.