CN2111336U - Anti-prizing double-tongue door lock device - Google Patents

Abstract

The utility model relates to an anti-bandit anti-prizing double-tongue door lock device. On the basis of original multifunction double-tongue door lock device, an anti-bandit hasp which is hung up and picked off has no need of the singly manual operation and can be automatically completed together with the opening and closing of a door and the operation of a spring lock bolt, and the problem of the leaky hanging of the anti-bandit hasp is avoided. A square lock bolt is inserted into the locking hole of a lock box, and lock bolt can be clamped in the locking hole of the lock box during the process of concerted action with original three safety devices; the square lock bolt absolutely can not come out unless a key is used or a turning knob is rotated. The utility model has the advantages of simple and reasonable structure, and easy production, which is a double-tongue door lock with triple insurance function, anti-bandit function and anti-prizing function.

Description

Anti-prizing double-tongue door lock device

The utility model relates to door lock manufacturing technology field.

Two flapper locks on the current China market, no matter what difference internal construction and profile have, mode that it is locked a door and effect then almost are the same, promptly in two dead bolts is " wind button " (also claiming spring latch), this dead bolt has an inclined-plane, at closing time, and bump lock box edge, inclined-plane, force its retraction lock housing, when treating over against lockhole, the multiple lockhole that springs into again on the lock box is promptly locked a door.If make this reopening, then need use key or rotation knob.Another dead bolt is square, slope-less.By key or stirring of knob and enter the lock box lockhole, from lockhole, withdraw from, promptly open the door, also with.Above-mentioned these two kinds of dead bolts all are in free state, the pick-proof poor performance in each self-locking hole of lock box.

Among two flapper locks, there are some that anti-riot chain apparatus (also claiming theft-resistant link chain) is arranged, still, all handy hand that takes off and hang up of chain is operated separately, and leaking the anti-riot chain of extension is common occurrence, thus conscientiously and often use the people of anti-riot chain, not a lot of for counting.

The purpose of this utility model is that a kind of novel pair of flapper lock will be provided, and makes the extension of anti-riot hasp and plucks and the spring latch interlock, to reach semi-automatic level, solves the extension problem of leaking simultaneously; Square lock bolt enters lockhole, promptly is stuck, and is connected as a single entity with lock box, does not use key and knob, can't withdraw from.For society provides a kind of safety factor and all good two flapper locks of pick-proof performance.

The purpose of this utility model can realize that promptly relative partial width with spring latch reduces on the lock box with following scheme, and at the anti-riot hasp of this installation with " wind button " interlock, anti-riot hasp is made up of two sheet metals, two connected nails and two springs.First sheet metal is a strip, and an end is a square hole, and an end is a circular hole, and square hole is connected with the narrow end of lock box with spring by connected nail, is subjected to the effect of spring, a round-meshed end by bullet to direction away from lock box.Second is connected with first with spring by another connected nail, and under the effect of spring, two can be overlapping, and second free-end promptly is in the part that lock box narrows down.Second free-end broad, it has surpassed lock box highly, and the part that surpasses constitutes an inclined plane, and the below on inclined plane has one can hold the coil component spring dead bolt circular hole of (being called for short the circle tongue).The circular hole of this hole and lock box wall portion coincides.The edge of circle dead bolt is the obtuse angle, and sidepiece has a groove.The rear portion of circle tongue wraps in a circular cover the inside on the lock housing, and this is with a V-arrangement gap.The pin that the same locking bar of circle tongue is connected is in the lowest point of V-arrangement gap.About 90 ° of rotating rod lock, dead bolt and locking bar can after move, by the time to a certain degree the time, dead bolt withdraws from the lock box lockhole, but, the circle tongue does not withdraw from the circular hole on the anti-riot hasp, at this moment opens the door, and anti-riot hasp is stretched, because of circular hole is blocked by the groove on the circle tongue, must not slippage, Men Kaiyi slit, outdoor people No Admittance.If in please it goes into, move after only need making locking bar again, circle dead bolt retraction lock housing, anti-riot hasp comes off automatically, and resets under spring action.Turn the key in the lock from outdoor, the circle tongue directly withdraws from the circular hole of lock box and anti-riot hasp, and door can be opened.

The device that makes square dead bolt (side's of abbreviation tongue) must not withdraw from the lock box lockhole is such, promptly respectively settle a telescopic metal stake in square tongue two upright sides, its stretch out with retraction recipient tongue vertically in the Metallic rod that movably front end is thin, the rear portion is thick control, or control with local dent.When its thick part moved on to metal stake bottom, the metal stake was ejected, and square tongue must not withdraw from the lockhole on the lock box.When Metallic rod small diameter part branch occupy under the metal stake, the metal stake was subjected to the effect of spring and retraction side's tongue, and square tongue can withdraw from the lockhole of lock box.Metallic rod and three safeties interlocks in side's tongue after the relevant process of finishing three insurances, make this Metallic rod reach again, and the metal stake is ejected, at this moment, and the gap of the control strip that links to each other with Metallic rod and three insurance control gap dislocation.Unblank with key or knob, what at first stir is the control gap of this Metallic rod, make it to overlap with three insurance control gap, accordingly, the small diameter part branch of Metallic rod is positioned under the metal stake, and the metal stake loses the effect of the side's of blocking tongue, continues knob key or knob, side's tongue can withdraw from lockhole, and door can be opened.In sum, the utility model door lock is compared with domestic existing door lock, and two big new features are arranged, and the first, what make anti-riot hasp hangs up or takes automation, and has solved leakage extension problem, has strengthened the sense of security; The second, square tongue is locked in the lock box lockhole and moves back, and has increased the pick-proof ability of door lock.This new door lock, simple in structure, easy to manufacture, can be installed on the various doors.Can produce good social benefit.

4 parts of the utility model drawings attacheds.Fig. 1 is the locked state structural representation, and Fig. 2 is the locked state schematic side view, and Fig. 3 is anti-riot hasp structure schematic diagram, Fig. 4 be anti-riot hasp when launching with lock box, justify dead bolt connection status schematic diagram.Now do comparatively detailed explanation in conjunction with the accompanying drawings.

Narrow section of lock box (3) has a circle tongue lockhole (25).Connected nail (4) is fixed on anti-riot hasp (23) on the lock box; Spring on the connected nail (5) is the flat state that crouches under the effect of its limited post (6), its other end is connected together by connected nail (22) and anti-riot hasp second sheet metal (24); Under the effect of spring (1), two metal sheets can be piled up; The free-end of this back one sheet metal (24) has a circular hole (9); On the top-side of circle dead bolt (8) groove (7) is arranged; The other end of circle tongue is in lock body lock housing (21) lining, its outside have a sleeve pipe (26) round, V-arrangement gap (28) is arranged on the sleeve pipe, there is pin (27) the lowest point of gap, this nail is the pin that is connected with locking bar of circle dead bolt still.In case dial twist lock bar pull handle (36), pin moves along V-arrangement gap hypotenuse, at this moment, circle tongue (8) moves on one side, do 90 ° of rotations on one side, when treating that pin (27) arrives gap (28) upper limb, circle tongue (8) just withdraws from from lockhole (25), but does not withdraw from the circular hole (9) on the anti-riot hasp (24).At this moment open the door, the circular hole (9) of anti-riot hasp (24) drops on groove (7) lining on the round tongue (8), and anti-riot hasp is stretched, and door can only be opened a seam.Turn the key in the lock outdoor, linkage is dialled locking bar (31) backward, and compression spring (30), circle tongue (8) needn't change 90 ° and move the lockhole (25) that withdraws from lock box (21) and the circular hole (9) on the anti-riot hasp (24) after just can be directly, can open.Discharge locking bar (31) pull handle (36), spring (30) extends forward from baffle plate (32), justifies tongue (8) and gives prominence to outside lock housing (21) and reset.At closing time, inclined-plane (35) the retraction lock housing (21) on the circle anti-riot hasp of tongue (24) percussion (24) when treating it over against lockhole (9), immediately springs into the lockhole (25) on anti-riot hasp (24) and the lock box (3), plays " wind button ".

Open a circular hole (10) in the upright side of square tongue (13), built-in metal circle part (15) and spring (11) use an annulus (14) that circle part (15) and spring (11) are fixed in the hole then.There is a deep hole (12) in vertical central authorities at square tongue (13), and Metallic rod (16) enters in the deep hole (12).When the thin straight part of its front end be in round part (15) below the time, the plane of the upright side of circle part (15) other end and square tongue (13) is neat, when treating that the past deep of Metallic rod (16) advances, it slightly directly stands the side to circle part (15) side of ejecting tongue through part, but hindered side's tongue (13) side of withdrawing from lockhole.The advance and retreat of Metallic rod (16) are subjected to its rear portion and the control of three safeties interlock part.Promptly after former " three insurances " action is finished, ring (33) is rotated a circle, dial the control panel (20) that nail (34) promotes Metallic rod (16), this plate is under the effect of limited post (19) and slideway (18), advance to the dotted line position of (17), at this moment, control gap (38) dislocation on the gap (37) on its control panel (20) insures with three.Ring when opening the door (33) rotates round about, dialling nail (34) allocates back dislocation, make it with three the insurance on gap (38) overlaid, at this moment the thin diameter parts of Metallic rod (16) is under the round part (15), the other end of circle part (15) is mutually neat with the upright side of square tongue (13), so square tongue (13) can be taken in the lock body lock housing like that as two tongue locks.

The utility model, though how three insurances of more existing double lock tongue or more insurance portal have locked more above-mentioned functions,, can be at the change original equipment of exceeding, original mould is gone into operation under the situation of former technology.

Claims (1)

1. A kind of novel anti-riot, two flapper locking devices of pick-proof, be on the basis of general two flapper lock constructions, to improve to form, it is characterized in that, spring latch is rotatable cylinder, lock box divides two sections of width, and narrow section has the spring latch lockhole, the wide section lockhole that Square lock bolt is arranged, one end of the anti-riot hasp that is connected into by sheet metal is fixed on the lock box, and the other end has an inclined-plane and inclined-plane can hold the circular hole that spring latch penetrates down; But there is the metal stake of extended retraction again square dead bolt front portion, and this other end contacts with a movable Metallic rod, and different diameters or depression are arranged on the Metallic rod.

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