CN2647992Y

CN2647992Y - Single bolt door lock

Info

Publication number: CN2647992Y
Application number: CN 03273308
Authority: CN
Inventors: 李广川
Original assignee: Shunde City Lunjiao District Xianfeng Hardware & Plastic Factory
Current assignee: Shunde City Lunjiao District Xianfeng Hardware & Plastic Factory
Priority date: 2003-08-10
Filing date: 2003-08-10
Publication date: 2004-10-13
Anticipated expiration: 2013-08-10

Abstract

The utility model discloses a single tongue door lock, including a lock tongue rod, a lock tongue which is connected with one end of the lock tongue rod, a spring which is used to reset the lock tongue rod and a rotor which is connected with a handle, a rotation reset part is connected to the rotor, a lever device which is used to drive the lock tongue rod is arranged between the rotor and the lock tongue rod; the lever device includes a drive arm and a pivot point, one end of the drive arm is connected with the rotor via a pin, the other end is connected in a floating way with the lock tongue rod; the rotation reset part includes a rotation reset arm, one end of the rotation reset arm which is far from the rotor is connected with a rotation reset spring, and the spring is arranged on a spring positioning column. Compared with the prior art, the utility model has simple structure, reliable work, good safety and low cost of processing and production.

Description

A kind of single flapper lock

Technical field:

The utility model relates to a kind of single flapper lock, the transmission mechanism in particularly single flapper lock.

Background technology:

Traditional single flapper lock as shown in Figure 1, the torsion spring 6 that generally comprise lock housing 1, dead bolt bar 2, the dead bolt 3 that links to each other with dead bolt bar one end, dead bolt bar back-moving spring 4, the rotor 5 that links to each other with handle, rotor is resetted, this rotor is by rack-and-pinion and 7 engagements of shift fork gear assembly, and shift fork drives the switching that the dead bolt bar is realized door lock; Comprise a banking stop 8 in addition, be used for preventing that dead bolt from deflecting and being stuck causes stretching out outside the lock housing when returning lock tongue cavity; One safety structure comprises insurance rotor 9, spacing steel ball 10, dead bolt pole spacing piece 11, insurance push jack 12, safety plug 13.There is following deficiency in the door lock of this structure: 1) occur easily owing to the not in place or stuck phenomenon of the excessive or too small dead bolt that causes of rack-and-pinion fit clearance; 2) the pinion and rack processing and manufacturing is comparatively complicated, and cost is higher.

Summary of the invention:

The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of simple in structure, functional reliability and safety is good, cost is low single flapper lock are provided.

Designed a kind of single flapper lock according to above purpose, comprise dead bolt bar, the dead bolt that links to each other with dead bolt bar one end, be used for the spring that the dead bolt bar resets, the rotor that links to each other with handle, be connected with the rotation reset components on the rotor, be provided with the leverage that is used to drive the dead bolt bar between this rotor and the dead bolt bar.

Described leverage comprises an actuating arm and a fulcrum, and an end of this actuating arm is connected with rotor by pin, and the other end floats with the dead bolt bar and is connected.

Described rotation reset components comprises that one rotates reset arm, and the end away from rotor on this rotation reset arm is connected with the rotation back-moving spring, and this spring is installed on the spring reference column.

The utility model compared with prior art, have following advantage and beneficial effect: (1) is owing to adopt the lever drive mechanism to replace the rack-and-pinion drive mechanism, make that lock body structure is simple, functional reliability strengthens, avoided in the rack-and-pinion drive mechanism the not in place or stuck phenomenon of the excessive or too small dead bolt that causes owing to the rack-and-pinion fit clearance; (2) rotor can make dead bolt produce bigger displacement under same corner by lever actuated dead bolt bar, thereby improves the safety of lock body; (3) in the lever drive mechanism, the processing and manufacturing of lever is simpler than the processing and manufacturing of rack-and-pinion, therefore can reduce cost, and increases economic efficiency.

Description of drawings:

Fig. 1 is the structural representation of traditional single flapper lock;

Fig. 2 is the structural representation of the utility model list flapper lock;

Among the figure: 1, lock housing; 2, dead bolt bar; 3, dead bolt; 4, dead bolt bar back-moving spring; 5, rotor; 6, torsion spring; 7, shift fork gear assembly; 8, banking stop; 9, insurance rotor; 10, spacing steel ball; 11, dead bolt pole spacing piece; 12, insurance push jack; 13, safety plug; 14, actuating arm; 15, fulcrum; 16, pin; 17, rotate reset arm; 18, rotate back-moving spring; 19, spring reference column.

The specific embodiment:

Fig. 2 is a preferred implementation of the present utility model, dead bolt bar 2, the dead bolt 3 that links to each other with dead bolt bar one end are installed in lock housing 1, are sleeved on the dead bolt bar back-moving spring 4 on the dead bolt bar 2, the rotor 5 that links to each other with handle, be provided with the leverage that is used to drive dead bolt bar 2 between rotor 5 and the dead bolt bar 2; This leverage is made of an actuating arm 14 and a fulcrum 15, and an end of actuating arm 14 is connected with rotor 5 by pin 16, and the other end floats with dead bolt bar 2 by its end that roughly is " Y " font and is connected.Be fixedly connected on the rotor 5 and one rotated reset arm 17, this other end that rotates reset arm 17 is connected with rotation back-moving spring 18, and can move on spring reference column 19.Identical with conventional door lock in addition part (see figure 1) also comprises a banking stop 8, is used for preventing that dead bolt from deflecting when returning lock tongue cavity and being stuck causes stretching out outside the lock housing; One safety structure comprises insurance rotor 9, spacing steel ball 10, dead bolt pole spacing piece 11, insurance push jack 12, safety plug 13.

Its operating principle is: swing handle makes rotor 5 rotations, and rotor 5 drives actuating arms 14 by pin 16 and rotates around fulcrum 15, the function that realization is opened the door thereby actuating arm 14 drive dead bolt bars 2 and dead bolt 3 move up; Unclamp handle, dead bolt bar and dead bolt are got back to initial position under the effect of dead bolt bar back-moving spring 4 and rotation back-moving spring 9.When needs use insurance function, rotate insurance rotor 9, make block 11 and safety plug 13 block dead bolt bar 2 and rotor 5 respectively, make its fixed-site and can't move and rotate, thereby reach the purpose of insurance.

Claims

1, a kind of single flapper lock, comprise dead bolt bar (2), dead bolt (3), dead bolt bar back-moving spring (4), the rotor (5) that links to each other with handle, be connected with the rotation reset components on the rotor, it is characterized in that: be provided with the leverage that is used to drive dead bolt bar (2) between this rotor (5) and the dead bolt bar (2).

2, single flapper lock according to claim 1, it is characterized in that: described leverage comprises an actuating arm (14) and a fulcrum (15), one end of this actuating arm (14) is connected with rotor (5) by pin (16), and the other end floats with dead bolt bar (2) and is connected.

3, single flapper lock according to claim 1 and 2, it is characterized in that: described rotation reset components comprises that one rotates reset arm (17), end away from rotor on this rotation reset arm is connected with rotation back-moving spring (18), and this spring is installed on the spring reference column (19).