CN2281381Y - Linked lock - Google Patents

Abstract

The utility model relates to a lock which can be unlocked by a plurality of keys, particularly a lock which is unlocked by two keys, such as a safety lock used for storage. The utility model is composed of a lock body component and a lock head component, wherein, the lock body component comprises a housing body, a fixing pole, a supporting seat, a lock tongue, a lock pin, a pin rod and a spring; the lock head component comprises a covering plate, an unlocking spring lock head and an interlink spring lock head, wherein, an unlocking sheet is fixed to the unlocking spring lock head, and an unlocking rod is arranged on the unlocking sheet; an interlink sheet is fixed to the interlink spring lock head, and an interlink rod is arranged on the interlink sheet. The utility model has the advantages of high safety, simple structure, low cost, etc., and furthermore, the utility model is an ideal lock for a strongbox used for storage.

Description

Novel chain lock

The utility model relates to the lock that starts with several keys, especially require to use two keys, as safe-deposit lock.

Two locks that key starts are used in existing requirement, for example CN87204290 " Dual-key operated cylinder lock ", CN89201463.6 " two privacy locks that key just can be opened ", CN89201996.4 " cylinder lock synchronously " and CN92207732.0 " two tapered ends chain of rings formula safety lock " etc., the drawback that all has the structure more complicated, therefore raw materials consumption is bigger, and cost of production is than higher.

The purpose of the utility model is to provide that a kind of security performance is strong, simpler, the lower-cost novel chain lock of structure.

The utility model adopts separate unlock chip and safety plate, and the unlocking rod on the unlock chip is stirred pin rod, and the way that the insurance span on the safety plate is lived locking bolt realizes above-mentioned purpose.

Novel chain lock is made up of lock body parts and tapered end parts.The lock body parts comprise the housing of being with dead bolt hole, be fixed on the fixed leg on the housing and the bearing of keyhole with lock, be contained in dead bolt and locking bolt on dead bolt hole and the locking bolt hole, that fuse, be fixed on the pin rod on the locking bolt, be enclosed within locking bolt outside, the spring between pin rod and bearing.The tapered end parts comprise and are enclosed within the cover plate on the fixed leg and are contained in unblank ball lock head and a chain of ball lock head on the cover plate.Unblank to be fixed with unlock chip on the ball lock head, unlocking rod is arranged on the unlock chip.Be fixed with a chain of sheet on a chain of ball lock head, a chain of bar is arranged on a chain of sheet.

Below in conjunction with embodiment shown in the drawings, the utility model is explained in detail.

Accompanying drawing 1 is the utility model front view, and accompanying drawing 2 is lock body parts front views, and accompanying drawing 3 is tapered end parts rear elevations, and attached Figure 4 and 5 are unlock chip right view and front view, and accompanying drawing 6 and 7 is a chain of sheet right view and front view.

Shown in accompanying drawing 1,2 and 3, novel chain lock is made up of lock body parts and tapered end parts.The lock body parts comprise the housing 9 of being with dead bolt hole, be fixed on four fixed legs 2 on the housing 9 and the bearing 8 of keyhole with lock with methods such as riveted joints, be contained in dead bolt that fuses 1 and locking bolt 6 on dead bolt hole and the locking bolt hole, be fixed on the pin rod 5 on the locking bolt 6, be enclosed within locking bolt 6 outsides, the spring 7 between pin rod 5 and bearing 8.Fixed leg 2 is a hollow, can tapered end parts and lock body parts be installed on the safe with securing member.The tapered end parts comprise cover plate 12 and are contained in unblank ball lock head 3 and a chain of ball lock head 4 on the cover plate 12 with securing member.Four fixed leg holes are arranged on the cover plate 12.The unblank keyhole of ball lock head 3 and a chain of ball lock head 4 can be an in-line, also can be criss-cross, can also be other shapes.

Shown in accompanying drawing 3 to 7, be fixed with unlock chip 11 on the ball lock head 3 of unblanking, unlocking rod 13 is arranged on the unlock chip 11.Be fixed with a chain of sheet 10 on a chain of ball lock head 4, a chain of bar 14 is arranged on a chain of sheet 10.On unlock chip 11 and a chain of sheet 10 fixing hole 15 is arranged, cooperate with unblank ball lock head 3 and a chain of ball lock head 4 respectively.Unlock chip 11 and a chain of sheet 10 usefulness securing members are fixed on unblank ball lock head 3 and a chain of ball lock head 4.

Shown in accompanying drawing 4 to 7, unlock chip 11 can be the part of an integral body with unlocking rod 13, also can be two parts independently.Equally, a chain of sheet 10 and the part that a chain of bar 14 can be an integral body also can be two parts independently.

Shown in accompanying drawing 1 to 7, unlocking rod 13 is positioned at the left side of pin rod 5.In the key of unblanking inserts the keyhole of the ball lock head 3 of unblanking and when rotating, the ball lock head 3 of unblanking drives unlock chips 11.At this moment, if a chain of bar 14 does not block locking bolt 6, unlocking rod 13 to right-hand promotion, overcomes the elastic force of spring 7 with pin rod 5 so, makes in the dead bolt 1 indentation housing 9, and novel chain lock is opened.Key resets if unblank, and then dead bolt 1 stretches out housing 9 under the effect of spring 7 elastic force, and lock is locked.A chain of bar 14 is positioned at the right side of bearing 8.In a chain of key inserts the keyhole of a chain of ball lock head 4 and when rotating, a chain of ball lock head 4 drives a chain of sheet 10, and a chain of bar 14 leaves the end of locking bolt 6, and then can open lock if the key of will unblanking inserts in the ball lock head 3 of unblanking and rotates this moment.If a chain of key resets, then a chain of bar is lived locking bolt 6 for 14 grades, and then can't open lock if the key of will unblanking inserts in the ball lock head 3 of unblanking this moment.That is to say, must make a chain of bar 14 leave the end of locking bolt 6 with a chain of key earlier, lock could be opened with the key of unblanking again.If have only a chain of key or the key of only unblanking, all lock can't be opened.

Obviously, the utlity model has that security performance is strong, simple in structure, low cost and other advantages, is storage with the comparatively ideal lockset of safe.

In the embodiment shown in the figures, the appearance and size of novel chain lock is 100 * 45 * 40.Unblank pellet shot from a slingshot lockhole and a chain of pellet shot from a slingshot lockhole all is criss-cross.Unlock chip 11 and unlocking rod 13 are two parts independently.The part that a chain of sheet 10 and a chain of bar 14 are an integral body.

Claims (2)

1, a kind of novel chain lock, form by lock body parts and tapered end parts, the lock body parts comprise the housing (9) of being with dead bolt hole, be fixed on the fixed leg (2) on the housing (9) and the bearing (8) of keyhole with lock, be contained in dead bolt that fuses (1) and locking bolt (6) on dead bolt hole and the locking bolt hole, be fixed on the pin rod (5) on the locking bolt (6), be enclosed within locking bolt (6) outside, be positioned at the spring (7) between pin rod (5) and the bearing (8), the tapered end parts comprise the cover plate (12) that is enclosed within on the fixed leg (2) and are contained in ball lock head of unblanking (3) and a chain of ball lock head (4) on the cover plate (12), it is characterized in that unblanking being fixed with unlock chip (11) on the ball lock head (3), unlocking rod (13) is arranged on the unlock chip (11), be fixed with a chain of sheet (10) on a chain of ball lock head (4), a chain of bar (14) is arranged on a chain of sheet (10).

2, by the described novel chain lock of claim 1, it is characterized in that unlock chip (11) and unlocking rod (13) can be the parts of an integral body, also can be two independently parts, a chain of sheet (10) can be the part of an integral body with a chain of bar (14), also can be two independently parts.

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