CN2214485Y - Accessory of auxiliary lock of anti-theft door - Google Patents

Abstract

The utility model relates to an auxiliary lock accessory of security door, this accessory constitute the auxiliary lock of security door jointly by spring bolt, turning arm, upper pull plate, lower pull plate and handle on the basic lock basis the same with the master lock model. By utilizing the lever principle that the main and auxiliary lock tongues of the accessory drive the connecting lever, the upper and lower locking pull rods of the security door can be automatically driven when the door is closed, and the functions of automatic locking and back locking from the inner side of the security door are realized.

Description

Auxilary lock attachment of anti-theft door

The utility model relates to a kind of security door pair and locks part, and this annex comprises dead bolt, connecting lever, lower pulling plate, goes up arm-tie and handle piece.

Along with popularizing gradually of security door, the kind of safe-guard door lock is on the increase.Because public security system is about the regulation of technological prevention aspect, be that the pair lock that main lock 813 types of representative are representative is formed generally by the 514B type at area, Dalian safe-guard door lock.514B type lock pin is anti-drilling, drives security door with the key rotation and locks the purpose that the pull bar realization is unblanked and locked up and down.But this lock can not be when shutting the door after you automatic locking, can not lock from the security door inboard.813 type locksets have latch and back locking function, but can not drive the locking pull bar of security door, and are installed in security door inner door panel surface, and its safety and aesthetic property are under some influence.

The purpose of this utility model is: overcome the prior art deficiency, provide a kind of security door that can drive automatically when shutting the door after you to lock pull bar up and down, realize that automatic locking and the security door pair that can lock from the security door inboard lock part.

The utility model implementation is as follows: still adopt the main lock of 514B type lock as security door, adopt 514B type lock as the basic lock 1 of pair lock, this locks inner assembling and should be adjusted into, its upper connecting rod 21 and lower link 15 can freely stretch under external force when key withdrawed from lockhole 22.Basic lock locks part with the security door pair and constitutes the secondary lock of security door, replaces the pair lock of other models.This annex is made up of dead bolt, connecting lever, lower pulling plate, last arm-tie and handle piece, and the dead bolt parts are made up of dead bolt support 10, main dead bolt 7, main latch bolt spring 11, main dead bolt arm-tie 12, secondary dead bolt 6, secondary latch bolt spring 8 and secondary dead bolt arm-tie 9.Dead bolt support 10 is fixed on the security door floor 2, and make main dead bolt 7 and secondary dead bolt 6 can free in and out dead bolt hole on the security door outer plate 3, and on doorframe 4, have only and main dead bolt 7 corresponding bonnet lock holes 5, this hole is used for holding main dead bolt 7, locks the function of pull bar 19 and 18 up and down to realize locking and control security door.The connecting lever parts are made up of " L " shape connecting lever 13 and three bearing pins 14 that play anastomosis.Wherein connecting lever 13 1 ends connect with main dead bolt arm-tie 12, connecting lever 13 corners one end connects with secondary dead bolt arm-tie 9, lower pulling plate 17 1 ends are fixed on the basic lock lower link 15, the other end connects with locking pull bar 18 under the security door, also have "-" shape slip slotted eye 16 on the lower pulling plate 17, the bearing pin 14 on connecting lever 13 other ends can slide in this hole.Handle piece is made up of handle 25, torque spring 24, handle fixed head 28 and handle connecting lever 29.Also have spacing pin 27 and steel ball locating hole 26 on the handle fixed head 28.Also have pin rod 30 and pin 23 on the handle connecting lever 29, steel ball and steel ball and spring are arranged in the pin.Shake hands 25 handles in the security door inboard, and 25 axostylus axostyles are fixed on the handle fixed head 28 with making it connecting of handle connecting lever 29 by shaking hands.Handle 25 can drive the swing of handle connecting lever 29, by cooperating of the steel ball locating hole 26 on the steel ball in the pin 23 and steel ball and spring and the handle fixed head 28, feel is arranged when handle is swung.Torque spring 24 is enclosed within the axostylus axostyle of handle 25, and the limited pin 27 in its two ends is limited in the fixing angle, and in pin 23 entered this scope, torque spring 24 1 ends and pin 23 interacted elastic force is provided.Last arm-tie 20 1 ends are fixed on to be locked on the pull bar 21 substantially, and the other end and security door are locked and strained at bar 19 and connect.Also have a scallop hole 32 on the last arm-tie 20, this Kong Youyi is extended location notch hole 31, and the pin rod 30 on the handle connecting lever 29 can and extend swing in the location notch hole 31 in scallop hole 32.Handle fixed head 28 and basic lock 1 also are fixed on the interior floor 2 of security door.

Fig. 1 is dead bolt parts and lower pulling plate and the schematic diagram of connecting lever parts when unlocking condition in the utility model the latter half.

Fig. 2 is handle piece and the schematic diagram of last arm-tie when locking state in the utility model the first half.

Below in conjunction with accompanying drawing the utility model is done further narration.

With reference to Fig. 1, this moment be unlocking condition.When shutting the door after you, secondary dead bolt 6 and main dead bolt 7 compress secondary latch bolt spring 8 and main latch bolt spring 11 respectively in stopping of doorframe 4, drive connecting lever 13 by secondary dead bolt arm-tie 9 and main dead bolt arm-tie 12 under the promotion, bearing pin 14 on its other end is slided left in " one " shape slip slotted eye 16 of lower pulling plate 17, when door is closed tight, main dead bolt 7 enters under the effect of main latch bolt spring 11 on the doorframe 4 in the corresponding with it bonnet lock hole 5, and secondary dead bolt 6 since not with it corresponding bonnet lock hole still be in by doorframe 4 and stop compressive state.This moment, the bearing pin with secondary dead bolt arm-tie 9 and connecting lever 13 connection places was the fulcrum of lever, the joining with it end of main dead bolt arm-tie 12 drive connecting levers 13 moves right under the promotion of main latch bolt spring 11, so connecting lever 13 drives lower pulling plate 17 with the lower pulling plate 17 joining other ends and moves down, then drive that locking pull bar 18 moves down under the security door, refer again to Fig. 2, because the upper connecting rod 21 of basic lock 1 connects by its inside with lower link 15, lower pulling plate 17 moves down and drives when lock lower link 15 also moves down substantially, substantially lock pull bar 21 and the last arm-tie 20 that is driven thereof and security door and lock and strain at bar 19 and move up, thereby realize the locking purpose.

With reference to Fig. 2, this moment is for locking state.Pin rod 30 on the handle connecting lever 29 is in the extension location notch hole 31 on scallop hole 32 left sides on the arm-tie 20, if pass through key unlocking this moment, pin rod 30 can stop that arm-tie 20 drives security doors and locks and strain at bar 19 and move down, and opens the lock with the key thereby stop from the security door outside.If withdraw from then rotating pull handle 25 handles of the state of locking, driving handle connecting lever 29 withdraws from pin rod 30 to extend location notch hole 31 and enters and get final product in the scallop hole 32, this moment, state was a SBR, promptly can unblank also can open the lock with the key from outer side of door from the door inboard by handle.If unblank by handle, rotating pull handle 25 handles then, driving on the handle connecting lever 29 locking bar 30 promotes to go up arm-tie 20 clockwise and moves down, driving security door locks and strains at bar 19 and move down, and drive is locked pull bar 21 substantially and is moved down, refer again to Fig. 1, by basic 1 inner connection of lock, basic lock lower link 15 drives lower pulling plate 17 and moves up, and locking pull bar 18 moves up under the drive security door, be fulcrum with connecting lever 13 with secondary dead bolt arm-tie 9 connection places this moment still, and lower pulling plate 17 drives connecting levers 13 and makes main dead bolt 7 be moved to the left the main latch bolt spring 11 of compression to retreat out bonnet lock hole 5 on the doorframe 4, thereby unblanks.When unclamping handle 25 the time, handle 25 recovers SBR with handle connecting lever 29 under torque spring 24 effects.Because the steel ball on the handle connecting lever 29 in the lock 23 and the interaction of the steel ball locating hole 26 on steel ball and spring and the handle fixed head 28 have feel in the transfer process of locking state and SBR and unlocking condition.If open the lock with the key from outer side of door at SBR, during screw key, substantially locking pull bar 21 drives and goes up arm-tie 20 and security door and lock and strain at bar 19 and move down, shake hands this moment pin rod 30 on the connecting lever 29 is in the scallop hole 32 on the arm-tie 20, can not hinder a grade last arm-tie 20 moves down, locking pull bar 18 moves up under lower link 15 drive lower pulling plates 17 and the security door and lock substantially, be fulcrum with connecting lever 13 with secondary dead bolt arm-tie 9 connection places this moment still, lower pulling plate 17 drives connecting levers 13 and makes main dead bolt 7 be moved to the left the main dead bolt bullet 11 of compression to retreat out bonnet lock hole 5 on the doorframe 4, thereby unblanks.

The utility model has the advantages that: simple in structure, easy to use, with low cost, the function that has automatic locking and lock from the antitheft door inboard, improve its security performance.

The utility model adopts the remaining part of casting all can adopt Sheet Metal Forming Technology except spring adopts machining, handle.

Claims (1)

1, the utility model relates to a kind of security door pair and locks part, this annex is on the basic lock basis identical with main lock model, by dead bolt, connecting lever, last arm-tie, the common secondary lock of security door of forming of lower pulling plate and handle, feature of the present utility model is to utilize the flexible lever principle that drives connecting lever of this annex major-minor dead bolt, the major-minor dead bolt of this annex is arranged in parallel within on the dead bolt support, major-minor dead bolt arm-tie connects with bearing pin with " L " shape connecting lever, the major-minor latch bolt spring can freely stretch dead bolt, and on doorframe, have only and the corresponding bonnet lock hole of main dead bolt, lower pulling plate one end of this annex is fixed on the lower link that security door locks substantially, the other end connects with locking pull bar under the security door, also has " one " shape slip slotted eye on this annex lower pulling plate, bearing pin on " L " shape connecting lever other end can slide in this hole, the handle of this annex is in the security door inboard, by with the handle connecting lever be connected and fixed the handle fixed head on, handle can drive the swing of handle connecting lever, on the handle connecting lever torque spring is arranged, pin rod and pin, steel ball and steel ball and spring are arranged in the pin, cooperate with the steel ball locating hole on the handle fixed head, feel is arranged when making the handle swing, last arm-tie one end of this annex is fixed on the upper connecting rod that security door locks substantially, the other end and security door are locked and are strained at bar and connect, also has a fan-shaped hole on this annex on the arm-tie, this Kong Youyi extends location notch hole, pin rod on the handle connecting lever can and extend in the location notch hole and swing under handle drives in this hole, and the dead bolt support of this annex and handle fixed head are locked on the floor that is fixed in the security door substantially with security door.

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