CN2328777Y - Anti-theft lock with automatic hoop-linked lock - Google Patents

Abstract

The utility model relates to an anti-theft door with an automatic interlinking lock, which is characterized in that a set of automatic interlinking locking system is composed of a master lock, a master lock bolt, an automatic locking latch, a locking connecting rod, a recoil check spring, a subsidiary lock, a subsidiary lock bolt, a connecting rod of the subsidiary lock bolt, a connecting rod latch of the subsidiary lock, a restriction subsidiary lock rod, an elastic latch, etc. Even under the condition that a master padlock and a subsidiary padlock are damaged, the anti-theft door is still in a firm locking state, which greatly improves the anti-theft function. Thereby, the utility model is a comparatively ideal and novel anti-theft door for families and units to use at present.

Description

A kind of security door that has automatic chain lock

The utility model relates to a kind of security door, particularly a kind of security door that has automatic chain lock.

Security door of the prior art, top lock all is by a lock core control multiple spot dead bolt, improve anti-theft feature with the quantity that increases the lock point, and lock isolates, and does not restrict mutually, in case lockset is pounded, prizes, destroyed, each lock point will be out of hand, door just can be opened, and loses anti-theft feature, and the lock point is many more also of no avail.

The purpose of this utility model is intended to improve above-mentioned deficiency, provides a kind of lockset the inner security door that adopts automatic a chain of locking mechanism.

The purpose of this utility model is to realize like this, it has doorframe, door leaf, be characterized in: main lock is installed on door leaf, in the main lock main dead bolt is housed, the locking connecting rod is established in the back of main lock, on the locking connecting rod, be connected with the left-hand dead bolt by the dead bolt connecting rod, the dextrad dead bolt, the rear end of locking connecting rod is provided with recoil check spring, there is the afterbody of a band convex slope rear end of described main dead bolt, the automatic blocking trip that has latch is established in the back of afterbody, the inclined-plane of automatic blocking trip front end is corresponding with the convex slope on the afterbody, and top latch is corresponding with the teeth groove on the locking connecting rod; On door leaf, also be provided with secondary lock, corresponding secondary lockhole place establishes secondary Back plate for lock hole, secondary lock open keyhole is arranged above it, secondary Back plate for lock hole is fixedly connected on the locking connecting rod, secondary dead bolt is fixedly connected on the secondary dead bolt connecting rod, is provided with secondary lock connecting rod trip on secondary dead bolt connecting rod, also is provided with the secondary locking bar of restriction on the locking connecting rod, restrict on the secondary locking bar elastic latch is housed, elastic latch is corresponding with secondary lock connecting rod trip.

When security door is in locking states, each dead bolt is all locked and is put in place, the inclined-plane on the automatic blocking trip and the convex slope of afterbody match, withstanding main dead bolt can not move it, the latch of automatic blocking trip is stuck in the teeth groove of locking connecting rod, blocks the locking connecting rod, and secondary Back plate for lock hole blocks secondary lock keyhole, elastic latch is withstood secondary lock connecting rod trip, and secondary dead bolt connecting rod can not be moved.If main lock is destroyed, lose control to main dead bolt, at this moment dial main dead bolt with the external force sled, main dead bolt can be firmly motionless under the dieback effect of automatic blocking trip, the locking connecting rod can not move under the effect of automatic blocking trip and recoil check spring, each dead bolt that the locking connecting rod is connected still can be in locking state, and secondary Back plate for lock hole still blocks secondary lock keyhole; If secondary Back plate for lock hole is destroyed, expose secondary lock, the pair lock is destroyed, make the secondary control that also loses secondary dead bolt of locking, the a chain of system that is made up of automatic blocking trip, locking connecting rod, recoil check spring this moment does not still block and can move, the secondary locking bar of the restriction on the locking connecting rod with elastic latch withstand the secondary connecting rod trip of locking, secondary dead bolt connecting rod can not be moved, the secondary dead bolt that secondary dead bolt connecting rod is controlled still is in locking state, has so just formed a whole set of a chain of locked system automatically.

Because the utility model has adopted automatic chain lock, even under all destroyed situation about falling of major and minor bright lock, security door still can be in firm locking state, has improved anti-theft feature greatly, is the novel anti-theft door that at present a kind of more satisfactory, suitable family, unit promote the use of.

Concrete structure of the present utility model is provided by following examples and accompanying drawing.

The front view of Fig. 1-the utility model security door;

The lateral view of Fig. 2-the utility model security door;

The locking state structural representation of the automatic chain lock of Fig. 3-the utility model;

The unlocking condition structural representation of the automatic chain lock of Fig. 4-the utility model;

The structure principle chart of Fig. 5-the utility model alarm;

The structure principle chart of Fig. 6-the utility model photoelectric alarm.

Provide embodiment below in conjunction with accompanying drawing, further specify the utility model.

Embodiment, referring to Fig. 1, Fig. 3, Fig. 4, main lock 1, secondary lock 1A are installed on door leaf, in the main lock 1 main dead bolt 2 is installed, an afterbody 3 that convex slope is arranged is established in the rear end of main dead bolt 2, in the back of main lock 1 locking connecting rod 7 is installed, open a teeth groove on it, left-hand dead bolt 13 is fixedly mounted on the locking connecting rod 7 by dead bolt connecting rod 11, and dextrad dead bolt 12 is movably connected on the locking connecting rod 7 by dead bolt connecting rod 11, and corresponding each dead bolt has dead bolt hole on doorframe; Establish automatic blocking trip 4 in the back of afterbody 3, be fixed on the door leaf with trip axle 5, trip spring 6 is installed on the trip axle 5, the front end of automatic blocking trip 4 is established an inclined-plane, shape is corresponding with the convex slope on the afterbody 3 with the position, establish a latch at the middle part, make it corresponding with the teeth groove on the locking connecting rod 7; Recoil check spring 8 is installed in rear end at locking connecting rod 7, and spring stop 9 is established in the rear end of recoil check spring 8, also is provided with defining baffle 10 in the lower end of locking connecting rod 7, excessively travels forward with restriction locking connecting rod 7.The secondary Back plate for lock hole 14 of fixed installation on locking connecting rod 7, its position is just in time at pair lock 1A place, above corresponding secondary lock keyhole place open a secondary open keyhole 15 of locking, restrict secondary locking bar 16 and be fixedly mounted on the locking connecting rod 7, on the secondary locking bar 16 of restriction, elastic latch 17 is installed, and torsion spring 18 is installed.The secondary mechanical linkage that is connected to of locking 1A and secondary dead bolt connecting rod 19, belong to prior art, just the position of corresponding elastic latch 17 is provided with secondary lock connecting rod trip 20 on secondary dead bolt connecting rod 19, and secondary dead bolt 21 is fixedly connected on the secondary dead bolt connecting rod 19, and has secondary dead bolt hole on doorframe.

Most preferred embodiment referring to Fig. 1-Fig. 6, on the basis of the foregoing description, also is provided with alarm on security door, the alarm actuating contact 31 of alarm is located between the major and minor lock by circuit, and sound equipment hole 30 is established in the door leaf top.If touch alarm actuating contact 31, from sound equipment hole 30, just can sound the alarm and send as sound such as " catching a thief ".Photoelectric alarm 32 also is housed in doorframe, photoelectric alarm 32 is installed is to guaranteeing special user's antitheft needs, it can send chimes of doom effectively under the situation of flame integral cutting security door, and can connect interphone automatically by circuit, report to the police to 110 and call for help.Two convex night lights 26 have been installed above doorframe, and external control button 22 is installed in the doorframe both sides, 23, two buttons of internal control button are biswitch control, and luminous tube is housed in the button, is convenient to use night.External control button 22 adopts the latch-up-free function, presses the button, and lamp is bright, and hand leaves button, and lamp extinguishes automatically; Internal control button 23 has lock function.On door leaf, be provided with deep hole sight glass 29, plated film form 27, form speculum 28 in the position of plated film form 27 is provided with relatively in the door.When window is opened less, owing to be installed in the reflex of eyeglass on the window, so do not need indoor owner that window is looked at straight, just can be observed situation outdoors from the side, the people is then because the reflex of plated film form outdoors, cannot see all in the door, the disadvantage that this has just been avoided sight glass and other form to look at straight.In the door doorbell is housed, doorbell button switch 24 is arranged on the door leaf, doorbell is a suitching type, and it is doorbell that man-hour is arranged in the family, in the family nobody the time, doorbell makes the doorbell function become message sound to the visiting guest by change-over switch 24A.The sound as " owner does not exist, and please leave a message ".Security door in appearance also design the ornament 25 of half stereoscopic sculpture that metal or plastics make is arranged, have graceful scuoptor sense, make the moulded elegant in appearance of security door, harmonious with interior decoration.

When locking a door, it is locked earlier with secondary lock key pair to be locked 1A, and secondary dead bolt connecting rod 19 drives secondary dead bolt 21 and locks in the secondary dead bolt hole on the doorframe, secondaryly locks the position that connecting rod trip 20 moves to corresponding elastic latch 17; Lock is main again locks 1, automatic blocking trip 4 is along with advancing of main dead bolt 2 moves down under the effect of trip spring 6, locking connecting rod 7 is also along with moving under the impetus of recoil check spring 8 of main dead bolt 2 pushed ahead, when main dead bolt 2 all enters dead bolt hole, the latch of automatic blocking trip 4 is dropped in the teeth groove of locking connecting rod 7 just, the convex slope of inclined-plane that it is anterior and afterbody 3 coincide, the left-hand dead bolt 13 of locking connecting rod 7 controls, dextrad dead bolt 12 is also all locked and is put in place, the elastic latch 17 that restricts on the secondary locking bar 16 is just in time withstood secondary lock connecting rod trip 20, and secondary Back plate for lock hole 14 blocks secondary lock keyhole.So far, security door is by firmly locked.

When opening the door, drive main lock 1 earlier, main dead bolt 2 is along with the rotation of main lock key is moved backward, the convex slope of afterbody 3 is with automatic blocking trip 4 jack-up, latch breaks away from teeth groove, frees the locking state that locking connecting rod 7 can not retreat, when main lock key unblanks to put in place, main dead bolt 2 can promote locking connecting rod 7 and retreated and compress recoil check spring 8 this moment, and each dead bolt of locking connecting rod 7 controls leaves the doorframe dead bolt hole and is retracted in the door; Restricting secondary locking bar 16 retreats along with locking connecting rod 7, elastic latch 17 on it is left secondary lock connecting rod trip 20, no longer stop secondary dead bolt connecting rod 19 to move, secondary Back plate for lock hole 14 is also along with locking connecting rod 7 retreats, make secondary lock open keyhole 15 over against lock core, insert secondary lock key, the pair lock is opened, the secondary dead bolt 21 of secondary lock control also is retracted in the door.So far, security door is opened.

Claims (5)

1, a kind of security door that has automatic chain lock, it has doorframe, door leaf, it is characterized in that: main lock (1) is installed on door leaf, in the main lock (1) main dead bolt (2) is housed, locking connecting rod (7) is established in the back of main lock (1), upward be connected with left-hand dead bolt (13) at locking connecting rod (7) by dead bolt connecting rod (11), dextrad dead bolt (12), the rear end of locking connecting rod (7) is provided with recoil check spring (8), there is the afterbody (3) of a band convex slope rear end of described main dead bolt (2), the automatic blocking trip (4) that has latch is established in the back of afterbody (3), the inclined-plane of automatic blocking trip (4) front end is corresponding with the convex slope on the afterbody (3), and top latch is corresponding with the teeth groove on the locking connecting rod (7); On door leaf, also be provided with secondary lock (1A), corresponding secondary lockhole place establishes secondary Back plate for lock hole (14), secondary lock open keyhole (15) is arranged above it, secondary Back plate for lock hole (14) is fixedly connected on the locking connecting rod (7), secondary dead bolt (21) is fixedly connected on the secondary dead bolt connecting rod (19), on secondary dead bolt connecting rod (19), be provided with secondary lock connecting rod trip (20), on locking connecting rod (7), also be provided with restriction secondary locking bar (16), restrict elastic latch (17) is housed on the secondary locking bar (16), elastic latch (17) is corresponding with secondary lock connecting rod trip (20).

2, according to the described a kind of security door that has automatic chain lock of claim 1, it is characterized in that, establish alarm on security door, the alarm actuating contact of alarm (31) is located between main lock (1) and the secondary lock (1A); In doorframe, also be provided with photoelectric alarm (32), above door leaf, be provided with sound equipment hole (30).

3, according to the described a kind of security door that has automatic chain lock of claim 1, it is characterized in that, external control button (22), the internal control button (23) of illuminating lamp (26), band luminous tube are installed on doorframe, and external control button (22) is biswitch control with internal control button (23).

4, according to the described a kind of security door that has automatic chain lock of claim 1, it is characterized in that, on door leaf, be provided with plated film form (27), form speculum (28) in relative position is provided with in the door.

5, according to the described a kind of security door that has automatic chain lock of claim 1, it is characterized in that ornament (25) is arranged on door leaf.

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