CN2372415Y - Combined pick-proof door lock - Google Patents

Abstract

The device belongs to the anti-theft door lock, which is structurally composed of a main lock, an auxiliary lock and a middle lock, wherein, the main lock is connected with the auxiliary lock through a transversal rack bar by a draw plate and a left and a right sides are symmetrical; the main lock is combined with the middle lock through a lock tongue of the main lock and is connected with the draw plate of the middle lock; both sides of the middle lock is simultaneously provided with combined lock tongues; both sides of the main lock, the auxiliary lock and the middle lock are organically connected into a whole. The utility model has the advantages of a whole structure of the entire inner and outer locks, compact structure, entire installation in an inner and an outer panels of an anti-theft door, interconnections of the inner and the outer locks and convenient operation, and is suitable for installation on various anti-theft doors.

Description

Combined type pick-proof door lock

The utility model belongs to a kind of mechanical door lock, is adapted at using on prized up-proof door or other prizing-proof safety door.

At present; there are various types of door locks to be applied in widely on anti-the forcing open the door; what sell on the market mostly is that monomer is locked; be placed on anti-the forcing open the door after the production separately by producer; anti-forcing open the door generally all is equipped with two locks; middle lock and external lock, the locking in the external lock shutter outside or switching at any time, middle lock is responsible for the locking of the anti-position, top and the bottom of forcing open the door; and two locks do not link to each other mutually; anti-purpose of forcing open the door the employing separate lock is a versatility, and cost of production is low, and is easy for installation; be convenient to produce in batches; its weak point is to use cumbersome, must put two locks are real separately, and often using makes troubles to life.

For solving the deficiency of above Antitampering door lock, the purpose of this utility model provides a kind of Combined pick-proof door lock, utilizes two lock machine tools combination linkage structure, to reach rational in infrastructure, takes precautions against good, the easy to use purpose of performance.

Structural design of the present utility model is achieved in that its structure of this Combined pick-proof door lock is by center one master lock, both sides two secondary locks that link to each other with master lock and link to each other with master lock simultaneously one in lock composition (as shown in Figure 1), wherein master lock is between among two secondary locks, the master lock outside is a cover of upholstery, in cover of upholstery the master lock box is housed, master lock box central vertical is outwardly directed to be that the master lock tongue makes up, the dead bolt center is the master lock gear, tooth bar engagement with the dead bolt central lateral plane, what be meshed with the master lock gear is the master lock moving gear, the master lock moving gear connects with the master lock driving gear again, automatic clamping fixedly frame and automatic clamping return sheet are housed on driving gear simultaneously, level is equipped with horizontal tooth bar on master lock, the master lock lock core is equipped with in the side, tooth bar and master lock gear couplings, horizontal tooth bar connects with the master lock lock core and connects with the secondary lock arm-tie of both sides simultaneously, secondary lock arm-tie two ends directly connect with secondary lock tooth bar arm-tie, this arm-tie is horizontal direction in secondary lock, the central vertical of secondary lock arm-tie outwards is the combination of secondary lock dead bolt, dead bolt connects by simultaneously interlock of central gear with arm-tie, and the outside of master lock or secondary lock all is added with decorative panel; Be middle lock in the inside of master lock, middle lock connects with main lock tongue by middle lock arm-tie, the center of middle lock is middle locking lock head, the following of middle lock is middle lock rack pinion, horizontal tooth bar below it connects, the top of rack pinion is middle lock arm-tie gear, the tapered end outside is middle lock-switch, middle lock both sides level is stretched out and is middle lock tooth bar, tooth bar connects with the dead bolt combination respectively by middle lock arm-tie, and fixed mount is housed on the dead bolt, and whole lock body is a planar structure, lock housing all is contained within the interior outer panels of prized up-proof door separately.

The advantage of the utility model: whole interior external lock is an integral body, and compact conformation all is contained in the interior outer panels of prized up-proof door, and interior external lock connects mutually, and switch is easy to use, is adapted at installing and using on the various prized up-proof doors.

The detailed structure of the utility model is provided by following examples and accompanying drawing.

Fig. 1 is combined type Door lock guarding against prizing master lock, secondary lock, middle lock position figure;

Fig. 2 is Combined pick-proof door lock master lock, secondary lock, middle lock machine tool structure chart.

The structure of whole lock such as Fig. 1, shown in 2, master lock driving gear 36 connects with master lock moving gear 27, moving gear 37 connects with master lock tooth bar arm-tie 38, tooth bar arm-tie center is master lock gear 39, be main lock tongue combination 17 below the gear 39, horizontal tooth bar is housed above the master lock, both sides connect secondary lock arm-tie 10, two ends is secondary lock tooth bar arm-tie 2, and cover plate 3 and fixed cover 4 are housed on the secondary lock, and the center is secondary lock combination 5, the center is secondary lock gear 30, bilateral symmetry is equipped with external dead bolt on the master lock, side dead bolt and horizontal dead bolt are arranged on the secondary lock simultaneously, be middle lock arm-tie 16 by linking with main lock tongue combination through an interlock on the master lock, in lock horizontal arm-tie tooth bar 15 be housed, lock box 14 and fixed cover 13 are housed above, lock tooth bar 11 in laterally being equipped with, be middle lock rack pinion 19 above the middle lock center, middle lock arm-tie gear 20, middle lock both sides are horizontal dead bolt 8, bilateral symmetry.During work, open master lock by main lock key, driving master lock driving gear 36 rotates, by main lock tongue combination 17 and middle lock arm-tie 16 middle lock arm-tie gear 19 is rotated, lock dead bolt group stretches out and reaches the locking purpose in the drive, thus during locking if master lock work just can make master lock, secondary lock and in lock lock simultaneously.Drive secondary lock by master lock during unlatching and open simultaneously, but that middle lock must add in addition is key operated, whole lockset can be placed in the interior outer panels of prized up-proof door fully, only has lockhole to be exposed, and installs and uses very convenient.

Claims (3)

1. Combined pick-proof door lock, formed by master lock and middle lock, it is characterized in that this door lock is by center one master lock (66), both sides two secondary locks (54 that link to each other with master lock, 30) and simultaneously link to each other with master lock one in lock (63) composition, wherein master lock (66) is in two secondary locks (54,30) between, the master lock outside is a cover of upholstery (42), in cover of upholstery master lock box (43) is housed, the vertical outwardly directed master lock tongue combination (17) that is in the master lock box (43), the dead bolt center is master lock gear (39), tooth bar engagement with the dead bolt central lateral plane, what be meshed with master lock gear (39) is master lock moving gear (37), master lock moving gear (37) connects with master lock driving gear (36) again, automatic clamping fixedly frame (22) and automatic clamping return sheet (21) are housed on driving gear (36) simultaneously, (level is equipped with horizontal tooth bar (38) above the 66-in master lock, master lock lock core (49) is equipped with in the side, tooth bar (38) connects with master lock gear (39), laterally tooth bar (38) connects with master lock lock core (49), connect with both sides secondary lock arm-ties (10) simultaneously, main lock tongue combination (17) connects with the middle lock arm-tie (16) of middle lock (14).

2. according to the described combined type pick-proof door lock of claim 1, it is characterized in that secondary lock (54,30) arm-ties (10) two ends directly connect with secondary lock (54,30) tooth bar arm-ties (2), this arm-tie is a horizontal direction in the pair lock, the central vertical of secondary lock arm-tie outwards is secondary lock dead bolt combination (5), dead bolt meshes simultaneously by central gear (27) with arm-tie and connects, and main lock (66) and secondary lock (54,30) outside all are added with decorative panel (45,29).

3. according to the described Combined pick-proof door lock of claim 1, it is characterized in that in the inside of master lock (66) being middle lock (14), middle lock (14) connects with the dead bolt combination (17) of master lock by middle lock arm-tie (16), the center of middle lock (14) is middle locking lock head (20), the following of middle lock is middle lock rack pinion (18), the horizontal tooth bar (11) of jade-like stone below the spring connects, the top of rack pinion (18) is middle lock arm-tie gear (19), the tapered end outside is middle lock-switch (47), middle lock both sides level is stretched out and is middle lock tooth bar (11), tooth bar (11) connects with dead bolt combination (8) respectively by middle lock arm-tie (9), and fixed mount (7) is housed on the dead bolt (8).

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