CN2299913Y

CN2299913Y - Three-point locked billiard latch for doors

Info

Publication number: CN2299913Y
Application number: CN 96238804
Authority: CN
Inventors: 陈年丰
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-10-18
Filing date: 1996-10-18
Publication date: 1998-12-09
Anticipated expiration: 2006-10-18

Abstract

The utility model relates to a three-point locked billiard latch for doors, which makes the upper door frame, the lower door frame and the middle part of the door locked by one latch. The utility model is composed of a latch shell, a bolt, a connecting plate, a compression spring, a crank disk, an executing shaft and a horizontal bolt sleeve. An upper connecting rod and a lower connecting rod are installed fixedly on the crank disk through a latch shaft. The upper connecting rod and the lower connecting rod pass through holes arranged on the upper surface and the lower surface of the latch shell, and are connected with an upper bolt connecting rod and a lower bolt connecting rod. The upper bolt connecting rod and the lower bolt connecting rod are all connected with the upper bolt and the lower bolt. The upper bolt and the lower bolt are all arranged in the bolt sleeve. The compression spring is installed in the bolt sleeve. The utility model is simple in structure and easy to manufacture. The three-point locked billiard latch for doors is especially suitable for the existing lock factories to produce and suitable for departments, such as households, offices, mines, etc. to use.

Description

3 locking pin tumbler lockes

The utility model belongs to civilian five metals class, exactly is a kind of pin tumbler lock of 3 lockings.

Door built-in lock---the pin tumbler lock of selling in the market, add one by a movable dead bolt of freedom or free dead bolt mostly and control with key that the fixedly dead bolt of collapsing length forms, it can only pin a position of a centre, promptly more so-called locking.And security door manufacturer often increases the built-in lock of an energy in last lower door frame locking in order to increase anti-theft feature in the middle of door at present, has increased the antitheft performance of security door like this, is called 3 lockings.But this 3 lockings need with two locks, and opening and closing are all inconvenient.

The purpose of this utility model provides an a kind of lock can pin the pin tumbler lock of 3 lockings in lower door frame and centre position, and simple in structure, and realizing has increased the pick-proof performance of common built-in lock easily.

The purpose of this utility model is achieved by the following scheme, it is by lock housing, cross locking tongue, connecting plate, stage clip, crank disc, carrying out axle and lock bolt sleeve forms, it is characterized in that, crank disc (11) is gone up and with lock shaft (15) connecting rod (3) and lower link (6) is housed fixedly, upper and lower strut passes above the lock housing (9) with the waist hole (20) of opening below and is connected with dead bolt connecting rod (7,8) up and down, the dead bolt connecting rod all is connected with dead bolt (16,17) up and down up and down, dead bolt all arrives in the lock bolt sleeve (18) down up and down, and stage clip (19) is housed in the lock bolt sleeve (18).It is on the position of symmetry that crank disc (11) goes up that lock shaft (15) is installed on the crank disc with the crank disc center, and when door lock was lived, two bearing pin lines passed through handle axle center and perpendicular to horizon.Under upper prop, see that cross locking tongue (14) head is a triangle, with an angle be 10-50 °, with the another side angle be 25-35 °.

The utility model has the advantages that a lock can pin upper, middle and lower 3 points simultaneously, increased the pick-proof of lock, adopt the safety that can increase security door, really realize 5 lockings as security door producer.The utility model improves on the basis of existing lock and gets final product, and is particularly suitable for the existing manufacturer of locking and produces, and cost increases few, and the pick-proof effect is but very obvious.

Below in conjunction with drawings and Examples the utility model is described in further detail.

Fig. 1 is the utility model user mode schematic diagram.

The structural representation that Fig. 2 locks at closing time for the utility model.

The structural representation of lock when Fig. 3 opens the door for the utility model.

Fig. 4 is that Fig. 2 A is to view.

Fig. 5 is that Fig. 3 B is to view.

1 is upper door frame among the figure, and 2 is door, and 3 is last connecting rod, and 4 is door lock, 5 is lock bolt sleeve, and 6 is lower link, and 7 is the upper lock tongue connecting rod, and 8 are following dead bolt connecting rod, 9 is lock housing, and 10 is connecting rod, and 11 is crank disc, 12 for carrying out axle, and 13 are the compression spring, and 14 is the cross locking tongue, 15 is lock shaft, and 16 is upper lock tongue, and 17 are following dead bolt, 18 is lock bolt sleeve, and 19 is stage clip, and 20 is the waist hole.

The utility model has just been opened the waist hole that can pass upper and lower connecting rod at the lock housing upper and lower faces of original door lock, balance staff dish on the former handle axle that is contained on the door lock is dismantled, load onto the crank disc that has symmetrical bearing pin, crank disc is more bigger than former crank disc, the position of bearing pin is to pass through handle axle central vertical on horizontal position when locking, the hole is done in position with former balance staff on crank disc, fixing former balance staff spare.Install lower link on the lock shaft of crank disc, upper and lower connecting rod connects dead bolt connecting rod up and down by lock housing waist hole, and connecting rod connects dead bolt, and there is lock bolt sleeve the dead bolt outside, is fixed on the upper and lower doorframe, and is in alignment by cylinder lock handle central vertical direction.The compression spring is arranged in the lock bolt sleeve, and (but the power that stage clip is compressed to the most in short-term should be less than balance staff relative friction in the balance staff nest, but also will guarantee can drive upper and lower dead bolt and move to limit when balance staff and balance staff nest do not have friction) at closing time works.To enter doorframe recessed poor helping dead bolt at closing time for dead bolt up and down, and the aspect of opening the door is to face directly to be beneficial to locking.The cross locking tongue is than long 3.5～5 millimeters of former dead bolt in the utility model, and there is the inclined-plane on both sides, and the inclined-plane of the direction of closing the door and the angle of doorframe are about 45 °, and the inclined-plane of the direction of opening the door and the angle of doorframe are 30 °.Because dead bolt so dead bolt stretches out 3.5～5 millimeters of lock housings under the door opening state, helps promoting at closing time upper and lower strut than long 3.5～5 millimeters of former dead bolt.When the door opener uses the key turns door lock, crank disc rotates by symmetrical bearing pin and drives, lower link is to the lock motion, under connecting rod drives, on, following dead bolt compression press spring is from the doorframe lock bolt sleeve of withdrawing, in the explanation, following locking is opened, balance staff drive connecting plate on the crank disc and cross locking tongue are to left movement simultaneously, stop in the balance staff nest to forwarding on the connecting plate to balance staff, at this moment dead bolt also stretches out 3.5～5 millimeters of lock housings, dead bolt is to contact with 30 ° of inclined-planes of doorframe angle, and friction friction relatively at closing time is little, so in the door epigenesist, a zip tongue is with regard in the retraction lock housing gently with key, and door is opened.At closing time owing to the effect of stretching out the outer cross locking tongue of lock housing can be lived door lock automatically.All component of the utility model are with the processing of conventional mechanical processing methods, get all the ready shown in the accompanying drawing behind the component, and assembling gets final product with reference to accompanying drawing.The utility model is particularly suitable for existing Lock Factory and adopts, and can obtain anti-theft effect preferably increasing under the very little cost.

Claims

1,3 locking pin tumbler lockes, it is by lock housing, cross locking tongue, connecting plate, stage clip, crank disc, carrying out axle and lock bolt sleeve forms, it is characterized in that, crank disc (11) is gone up and with lock shaft (15) connecting rod (3) and lower link (6) is housed fixedly, upper and lower strut passes above the lock housing (9) with the waist hole (20) of opening below and is connected with dead bolt connecting rod (7,8) up and down, the dead bolt connecting rod all is connected with dead bolt (16,17) up and down up and down, dead bolt all arrives in the lock bolt sleeve (18) down up and down, and stage clip (19) is housed in the lock bolt sleeve (18).

2,3 locking pin tumbler lockes according to claim 1, it is characterized in that: it is on the position of symmetry that crank disc (11) goes up that lock shaft (15) is installed on the crank disc with the crank disc center, when door lock was lived, two bearing pin lines were by handle axle center and perpendicular to horizon.

3, according to claim 13 locking pin tumbler lockes, it is characterized in that: see that from top to bottom cross locking tongue (14) head is a triangle, with an angle be 40-50 °, with the another side angle be 25-35 °.