CN2505551Y - Improved structure of mechanical puzzle composite lock - Google Patents

Abstract

The utility model provides an improved structure of mechanical puzzle composite lock and belongs to a lockset, comprising a housing which is provided inside with a mechanical lock, a puzzle lock, a flashboard and a linkage sheet, the mechanical lock and the puzzle lock are fixed in the housing, the edge of the flashboard is provided with a plurality of pin heads, the linkage sheet is provided with a guide device which makes the linkage sheet slide up and down, the linkage sheet is provided with an elbow which can be inserted into the hatch groove in the lock blade of the puzzle lock, the linkage sheet is arranged at the side part of the flashboard and is provided inside with a poke hole, a poke pin fixed on the lock core of the mechanical lock is inserted in the poke hole. In the utility model, the linkage sheet is driven by the poke pin; therefore the linkage sheet can be positioned arbitrarily in the housing without orderliness to make thieves hard to ensure the accurate position of the linkage sheet. The utility model is of reasonable and skilled design, and increases the safe performance of lock.

Description

The structure-improved of mechanical cipher composite lock

Technical field

The utility model belongs to a kind of lockset, particularly a kind of mechanical cipher composite lock that is used on strongbox or the safety cabinet.

Background technology

On the cabinet door of strongbox or safety cabinet, mechanical lock and coded lock are installed simultaneously, can play the dual fail-safe effect, its theftproof performance is enhanced about more than once.On common strongbox, these two locks are fully independently, so the burglar adopts the means defeat in detail, and easily lock are opened.For this reason, the inventor had applied for once that (patent No. was: 00254849.6) for the utility model patent of " mechanical code lock composite structure ".This composite lock comprises housing, mechanical lock, coded lock, plate and double-action plate, double-action plate is between mechanical lock and coded lock, by moving of mechanical lock and the dual restriction double-action plate of coded lock, reach the purpose of locking insert, so its theftproof performance is better than common structure far away.But, state on the implementation in the utility model patent process, the inventor finds that this composite lock also exists certain weak point, show that mainly the dead bolt owing to double-action plate and mechanical lock is fixed together in this composite lock, its position is judged by the burglar easily, the burglar can directly destroy double-action plate, and strongbox is opened.In addition, the burglar also can destroy mechanical lock, and when mechanical lock was pried open, double-action plate can be affected simultaneously, and strongbox is easy to be opened.

Summary of the invention

The purpose of this utility model is at the existing the problems referred to above of mechanical cipher composite lock, and a kind of structure-improved of reasonable in design, the better mechanical cipher composite lock of theftproof performance is provided.

The purpose of this utility model realizes by following technical proposal: the structure-improved of this mechanical cipher composite lock comprises a housing, be provided with a mechanical lock in the housing, a coded lock, a plate and a double-action plate, mechanical lock and coded lock are fixed in the housing, the edge of plate is provided with several pin heads, the pin head passes housing, be provided with the guiding device that double-action plate is slided up and down in the double-action plate, an elbow that can insert in the coded lock locking plate split shed groove is arranged on the double-action plate, double-action plate is positioned at the sidepiece of plate, be provided with a position dialing hole in the double-action plate, the pin of stirring that is fixed on the mechanical lock core inserts in this position dialing hole.

In this structure, double-action plate is the effect of playing restriction plate translation equally, double-action plate move then by coded lock and the double control of mechanical lock.That is to say that only under the situation that coded lock and mechanical lock can be opened simultaneously, double-action plate could slide up and down freely.Double-action plate mobile is the lock core by the rotary machine lock, makes the pin of stirring on the lock core drive that double-action plate realizes.

Above-mentioned guiding device is formed by at least two bar holes on the double-action plate with bar hole equal number and the lead that is fixed in the housing, and lead inserts in the bar hole.This structure is the restriction to double-action plate, and double-action plate can only be moved up and down along lead.

Also be provided with self-locking device on the above-mentioned double-action plate.After stirring pin and stirring double-action plate and move up and down, can prevent that by self-locking device the double-action plate position from changing voluntarily.Particularly, this self-locking device is formed with hinged self-lock rod and the self-locking spring of housing by one, and self-locking spring is socketed on the self-lock rod, and an aperture is arranged on the double-action plate, and insert in this aperture the outer end of self-lock rod.Move up and down in the process at double-action plate, self-lock rod is also followed interlock together.Because therefore self-locking spring roof pressure all the time makes between double-action plate and the lead and can produce certain stiction on double-action plate, it can overcome the gravity of double-action plate self, prevents that the position of double-action plate from changing voluntarily.

Compared with prior art, advantage of the present utility model is:

1, because double-action plate is to stir by the pin of stirring on the mechanical lock core, therefore the position of double-action plate can be provided with arbitrarily in housing, does not have rule, makes the burglar be difficult to determine the accurate position of double-action plate, it is reasonable in design ingenious, has strengthened the security performance of lock.

2, on double-action plate, also be provided with self-locking device, make the position of double-action plate relatively stable, even under the situation that the burglar destroys the coded lock on the housing and mechanical lock, double-action plate is in the lock state, moving of restriction plate, also just strongbox can not be opened, so its anti-theft security performance has improved greatly.

3, because of double-action plate separates setting with the lock core of mechanical lock, for the mechanical strength that strengthens double-action plate provides condition, make double-action plate can bear stronger external force, be not easy to be destroyed by the burglar.

Description of drawings

Fig. 1 is the structural representation of the mechanical cipher composite lock that provides of the utility model.

Fig. 2 is the structural representation of self-locking device in the mechanical cipher composite lock that provides of the utility model.

Among the figure, 1, housing; 2, mechanical lock; 20, lock core; 21, stir pin; 3, coded lock; 30, locking plate; 31, open slot; 4, plate; 40, pin head; 5, double-action plate; 50, bar hole; 51, position dialing hole; 52, aperture; 53, elbow; 6, self-lock rod; 7, self-locking spring; 8, lead; 9, connecting rod.

The specific embodiment

As shown in Figure 1, the structure-improved of this mechanical cipher composite lock comprises housing 1, mechanical lock 2, coded lock 3, plate 4 and double-action plate 5.Mechanical lock 2 and coded lock 3 are fixed on the housing 1.Fixing one on the lock core 20 of mechanical lock 2 and stirring pin 21, stirring pin 21 and can rotate along with the rotation of lock core 20.Stir in the position dialing hole 51 on the pin 21 insertion double-action plates 5.Several locking plates 30 are arranged on the coded lock 3, be equipped with an open slot 31 on each locking plate 30.An elbow 53 that is positioned at directly over the locking plate 30 is arranged on the double-action plate 5, and the size of elbow 53 is slightly less than the width of open slot 31.When having only open slot 31 when all locking plates 30 of coded lock all to be in to be positioned at the same position under the elbow 53, coded lock 3 is just calculated and is in opening.At this moment, elbow 53 can enter in the open slot 31, that is to say the restriction that is not subjected to coded lock that moves up and down of double-action plate 5.At this moment, the lock core 20 of rotary machine lock 2 just can drive double-action plate 5 and moves up and down by stirring pin 21.

In the present embodiment, the guiding device of double-action plate 5 is two bar holes 50 and two leads 8.Every lead 8 inserts in one of them bar hole 50, and double-action plate 5 is moved up and down along lead 8.Double-action plate 5 is located at the sidepiece of plate 4.When moving on the double-action plate 5 when being in a high position, double-action plate 5 stops plate 4, makes the plate 4 can not translation, and this composite lock is in closed condition; When double-action plate 5 moves down when being in low level, plate 4 can free shift, and composite lock is in the state of unlatching.

As shown in Figure 1, three pins 40 are arranged on the plate 4, pin 40 passes housing 1.Pin 40 is flexible at housing 1 sidepiece along with the translation of plate 4, is used for locking or opens the safe door.Handle on the safe door is generally hinged by connecting rod in the housing 19 and plate 4.When plate 4 was not restricted, pulling handle just can make plate 4 translations, also just made pin head 40 flexible at housing 1 sidepiece.

As depicted in figs. 1 and 2, the self-locking device on the double-action plate 5 is a self-lock rod 6 and a self-locking spring 7.Self-lock rod 6 is hinged with housing 1, and self-locking spring 7 is socketed on the self-lock rod 6.Insert in the aperture 52 of double-action plate 5 outer end of self-lock rod 6.Because self-locking spring 7 roof pressure all the time makes between double-action plate 5 and the lead 8 to produce frictional force and obtain locating on double-action plate 5.Particularly when double-action plate 5 was in a high position, even mechanical lock 2 and all destroyed situation of coded lock 3 occur, double-action plate 5 can not fall down yet, thereby makes the safe door remain on the state of locking.

Claims (4)

1, a kind of structure-improved of mechanical cipher composite lock, comprise a housing (1), be provided with a mechanical lock (2) in the housing (1), a coded lock (3), a plate (4) and a double-action plate (5), mechanical lock (2) and coded lock (3) are fixed in the housing (1), the edge of plate (4) is provided with several pin heads (40), pin head (40) passes housing (1), be provided with the guiding device that double-action plate (5) is slided up and down in the double-action plate (5), an elbow (53) that can insert in coded lock (3) locking plate (30) the split shed groove (31) is arranged on the double-action plate (5), it is characterized in that described double-action plate (5) is positioned at the sidepiece of plate (4), be provided with a position dialing hole (51) in the double-action plate (5), the pin (21) of stirring that is fixed on mechanical lock (2) lock core (20) inserts in this position dialing hole (51).

2, the structure-improved of mechanical cipher composite lock according to claim 1, it is characterized in that described guiding device is formed by at least two bar holes (50) on the double-action plate (5) with bar hole (50) equal number and the lead (8) that is fixed in the housing (1), in lead (8) the insertion bar hole (50).

3, the structure-improved of mechanical cipher composite lock according to claim 1 and 2 is characterized in that described double-action plate (5) is provided with self-locking device.

4, the structure-improved of mechanical cipher composite lock according to claim 3, it is characterized in that described self-locking device is formed with a hinged self-lock rod (6) and the self-locking spring (7) of housing (1) by one, self-locking spring (7) is socketed on the self-lock rod (6), an aperture (52) is arranged on the double-action plate (5), and insert in this aperture (52) outer end of self-lock rod (6).

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