CN216690666U - Combination lock of coded lock - Google Patents

Abstract

The utility model discloses a combination lock of a coded lock, which comprises a lock panel, wherein a first coded lock, a second coded lock and a third coded lock are longitudinally fixed on one side of the lock panel; the first bolt of the first coded lock, the second bolt of the second coded lock and the third bolt of the third coded lock are connected with a bolt block through a linkage mechanism, the linkage mechanism comprises a first connecting rod movably connected with the first bolt and a second connecting rod movably connected with the second bolt and the third bolt, the second connecting rod is movably connected to a first rocker through a third connecting rod, and the first rocker is movably connected to the first connecting rod; the first connecting rod is movably connected with the second rocker, and the second rocker is movably connected with the bolt locking block. The actions of the lock tongues of the three coded locks are transmitted step by the connecting rods and the rocking rods of the linkage mechanisms, so that when one coded lock is randomly opened, the combined lock is not opened, the length of the locking part of the lock tongue block is more than or equal to 9mm, and when two coded locks are randomly opened, the combined lock is opened.

Description

Combination lock of coded lock

Technical Field

The utility model relates to a coded lock, in particular to a combined lock of the coded lock.

Background

Three coded locks are usually installed on the vault door or the commercial safe, and the door mechanism adopts a structure that the door can be opened by opening any two coded locks, so that the normal door opening and closing of the vault door or the commercial safe are not influenced under the condition that one coded lock is in failure. However, in the structure of opening the vault door or the safe door by opening two coded locks arbitrarily in the three coded locks, the bolt opening and closing stroke of the coded lock and the shape stroke of the bolt block controlled by any two coded locks and used for blocking the door opening are generally equal, that is, one coded lock is opened, the bolt block moves by half the bolt stroke of the coded lock, the other coded lock is opened, the bolt block moves by half the bolt stroke of the coded lock, and at the moment, the vault door or the safe door can be opened. The shape of the bolt of the coded lock for the vault door or the safe is 10mm, if the coded lock is forgotten to be closed or is intentionally opened, the bolt block blocking the door opening mechanism moves by 5mm, so that the length of the bolt block locking the door opening mechanism is less than 5mm, the vault door or the commercial safe is easily damaged when being attacked illegally, the required anti-theft level cannot be reached, and potential safety hazards exist. The latest version of national standard GB10409-2019 for anti-theft safes (boxes) has been implemented, wherein the technical requirement is that the length of a bolt locking part of 5.3.1.2 definite anti-theft locks is greater than or equal to 9 mm. Therefore, the structure for opening the door by randomly opening the two coded locks does not meet the technical requirements of the latest national standard and also does not meet the requirements of anti-theft level. Accordingly, the prior art is yet to be improved and developed.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is to provide a combination lock of a coded lock, which solves the problem that the locking length of a lock tongue piece is insufficient when one lock of the existing combination lock is unlocked.

The utility model provides a combination lock of a coded lock to solve the technical problems, which comprises a lock panel, wherein a first coded lock, a second coded lock and a third coded lock are longitudinally fixed on one side of the lock panel, and a coded rotary disc is arranged on the other side of the lock panel corresponding to each coded lock; the first bolt of the first coded lock, the second bolt of the second coded lock and the third bolt of the third coded lock are connected with a bolt block through a linkage mechanism, the linkage mechanism comprises a first connecting rod movably connected with the first bolt and a second connecting rod movably connected with the second bolt and the third bolt, the second connecting rod is movably connected to a first rocker through a third connecting rod, and the first rocker is movably connected to the first connecting rod; the first connecting rod is movably connected with a second rocker, and the second rocker is movably connected with the lock tongue block; the lock bolts of the corresponding coded locks are controlled to sequentially extend or retract by rotating the coded turnplate, and then the lock bolt blocks are driven to sequentially extend or retract through the linkage mechanism.

Furthermore, both ends of the first connecting rod form a first end and a second end which protrude towards one side of the coded lock, and the middle part of the first connecting rod forms a third end which protrudes towards one side of the coded lock; a first step screw is fixed at the third end of the first connecting rod, a first waist-shaped hole matched with the first step screw is formed in the middle of the second rocker, and the first step screw is arranged in the first waist-shaped hole; one end of the second rocker is connected with the lock panel in a pin mode, a second step screw is fixed to the other end of the second rocker, a second waist-shaped hole matched with the second step screw is formed in the middle of the lock tongue block, the second step screw is arranged in the second waist-shaped hole, and when the first connecting rod moves, the second rocker is driven to rotate, and then the lock tongue block is driven to move.

Further, the lock tongue piece is provided with spacing waist shape hole along length direction, spacing waist shape hole is two and sets up respectively in the both sides in second waist shape hole, be fixed with the location step double-screw bolt that matches with spacing waist shape hole on the lock panel, location step double-screw bolt is located spacing waist shape hole, location step double-screw bolt restricts the displacement of lock tongue piece when the lock tongue piece removes and carries out lateral shifting's direction, makes the lock tongue piece only lateral shifting.

Furthermore, the first kidney-shaped hole is formed along the length direction of the second rocker, and the first connecting rod is allowed to longitudinally move relative to the second rocker when the first connecting rod drives the second rocker to rotate.

Furthermore, the second kidney-shaped hole is formed along the width direction of the lock tongue block, and the second rocker is allowed to longitudinally move relative to the lock tongue block when the second rocker rotates to drive the lock tongue block to move.

Further, the first lock tongue is connected with a first extension rod, and the first extension rod is in pin joint with the first end of the first connecting rod; when the first lock tongue moves, the first connecting rod moves to drive the second rocker to rotate so as to drive the lock tongue block to move.

Furthermore, the second bolt is connected with a second extension rod, and the second extension rod is in pin joint with one end of a second connecting rod; the third bolt is connected with a third extension rod, the third extension rod and the second extension rod are the same in size, and the third extension rod is in pin joint with the other end of the second connecting rod; one end of the third connecting rod is in pin joint with the middle part of the second connecting rod, the other end of the third connecting rod is in pin joint with the middle part of the first rocker, and one end of the first rocker is in pin joint with the lock panel. The other end of the first connecting rod is in pin joint with the second end of the first connecting rod; when the second lock tongue and/or the third lock tongue move, the second connecting rod and the third connecting rod move to drive the first rocker to rotate, and then the lock tongue block is driven to move through the first connecting rod and the second rocker.

Furthermore, the lock panel is connected with a housing, the housing and the lock panel form a space for accommodating the coded lock and the linkage mechanism, and a lock tongue block groove allowing the lock tongue block to pass through is formed in the side surface of the housing.

Furthermore, the bolt stroke of trick lock is 10mm, and adjacent interval between the trick lock is 150mm, the total stroke of lock tongue piece is 20mm, and the stroke of lock tongue piece is 10mm when opening a trick lock.

Compared with the prior art, the utility model has the following beneficial effects: the utility model provides a combination lock of a coded lock, which is formed by connecting three coded locks, a linkage mechanism, a lock tongue block and the like, wherein a connecting rod of the linkage mechanism and a rocker are in step-by-step transmission, so that when one coded lock is randomly opened, the combined lock is not opened, the length of a locking part of the lock tongue block is more than or equal to 9mm, and when two coded locks are randomly opened, the combined lock is opened.

Drawings

FIG. 1 is a schematic structural diagram of a combination lock according to an embodiment of the present invention;

FIG. 2 is an internal view of a combination lock of the embodiment of the present invention in a fully locked state;

FIG. 3 is an internal view of a combination lock of the embodiment of the present invention when only the first combination lock is unlocked;

FIG. 4 is an internal view of a combination lock of the embodiment of the present invention with only a second combination lock unlocked;

FIG. 5 is a schematic view of the inside of a combination lock of the present invention when the first combination lock and the second combination lock are unlocked;

fig. 6 is an internal schematic view of a combination lock according to an embodiment of the present invention, when a second combination lock and a third combination lock are unlocked.

In the figure:

1. a lock panel; 2. a housing; 3. a lock tongue block; 5. a password rotary table; 7. a first extension pole; 8. a second extension pole; 9. a third extension rod; 10. a first link; 11. a second link; 12. a third link; 13. a first rocker; 14. a second rocker; 15. a first step screw; 16. a second step screw; 19. positioning a step stud; 20. a first waist-shaped hole; 21. a second waist-shaped hole; 22. a limiting waist-shaped hole; 41. a first combination lock; 42. a second combination lock; 43. a third coded lock; 61. a first bolt; 62. a second bolt; 63. and a third bolt.

Detailed Description

The utility model is further described below with reference to the figures and examples.

In the present invention, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "center", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are used primarily to better describe the utility model and its embodiments and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation. Furthermore, the terms "first," "second," and the like are used solely to distinguish one from another, and are not to be construed as indicating or implying relative importance.

FIG. 1 is a schematic view of a combination lock according to an embodiment of the present invention; fig. 2 is an internal schematic view of a combination lock in a full lock state according to an embodiment of the present invention.

Referring to fig. 1 and 2, the combination lock of the embodiment of the present invention includes a lock panel 1, a first combination lock 41, a second combination lock 42 and a third combination lock 43 are longitudinally fixed on one side of the lock panel 1, and a combination rotary disc 5 is arranged on the other side of the lock panel 1 corresponding to each combination lock; the first bolt 61 of the first coded lock 41, the second bolt 62 of the second coded lock 42 and the third bolt 63 of the third coded lock 43 are connected with the bolt block 3 through a linkage mechanism, the linkage mechanism comprises a first connecting rod 10 movably connected with the first bolt 61 and a second connecting rod 11 movably connected with the second bolt 62 and the third bolt 63, the second connecting rod 11 is movably connected to a first rocker 13 through a third connecting rod 12, and the first rocker 13 is movably connected to the first connecting rod 10; the first connecting rod 10 is movably connected with a second rocker 14, and the second rocker 14 is movably connected with the bolt block 3; the lock tongue of the corresponding coded lock is controlled to sequentially extend or retract by rotating the coded rotary disc 5, and then the lock tongue block 3 is driven to sequentially extend or retract through the linkage mechanism.

Specifically, both ends of the first connecting rod 10 form a first end and a second end protruding towards one side of the combination lock, and the middle part of the first connecting rod 10 forms a third end protruding towards one side of the combination lock; a first step screw 15 is fixed at the third end of the first connecting rod 10, a first waist-shaped hole 20 matched with the first step screw 15 is formed in the middle of the second rocker 14, and the first step screw 15 is arranged in the first waist-shaped hole 20; one end of the second rocker 14 is connected with the lock panel 1 in a pin mode, the other end of the second rocker 14 is fixed with a second step screw 16, a second waist-shaped hole 21 matched with the second step screw 16 is formed in the middle of the lock tongue block 3, the second step screw 16 is arranged in the second waist-shaped hole 21, and when the first connecting rod 10 moves, the second rocker 14 is driven to rotate, and then the lock tongue block 3 is driven to move.

Specifically, the locking tongue piece 3 is provided with two limiting waist-shaped holes 22 along the length direction, the two limiting waist-shaped holes 22 are respectively arranged on two sides of the second waist-shaped hole 21, the locking panel 1 is fixed with a positioning step stud 19 matched with the limiting waist-shaped holes 22, the positioning step stud 19 is located in the limiting waist-shaped holes 22, and the positioning step stud 19 limits the moving distance of the locking tongue piece 3 and guides the transverse movement when the locking tongue piece 3 moves, so that the locking tongue piece 3 only moves transversely.

Specifically, the first kidney-shaped hole 20 is disposed along the length direction of the second rocking bar 14, and allows the first connecting bar 10 to move longitudinally relative to the second rocking bar 14 when the first connecting bar 10 drives the second rocking bar 14 to rotate. The second kidney-shaped hole 21 is arranged along the width direction of the lock tongue piece 3, and allows the second rocker 14 to move longitudinally relative to the lock tongue piece 3 when the second rocker 14 rotates to drive the lock tongue piece 3 to move. The rotation of the second rocking lever 14 is converted into the transverse movement of the latch piece 3 and the longitudinal movement of the second rocking lever 14 relative to the latch piece 3.

Specifically, the first bolt 61 is connected with a first extension rod 7, and the first extension rod 7 is in pin joint with a first end of the first connecting rod 10; when the first bolt 61 moves, the first link 10 moves to drive the second rocker 14 to rotate and further drive the bolt block 3 to move.

Specifically, the second bolt 62 is connected with a second extension rod 8, and the second extension rod 8 is in pin joint with one end of the second connecting rod 11; the third bolt 63 is connected with a third extension rod 9, the size of the third extension rod 9 is the same as that of the second extension rod 8, and the third extension rod 9 is in pin joint with the other end of the second connecting rod 11; one end of the third connecting rod 12 is connected with the middle part of the second connecting rod 11 by a pin, the other end of the third connecting rod 12 is connected with the middle part of the first rocker 13 by a pin, and one end of the first rocker 13 is connected with the lock panel 1 by a pin. The other end is in pin joint with the second end of the first connecting rod 10; when the second bolt 62 and/or the third bolt 63 move, the second connecting rod 11 and the third connecting rod 12 move to drive the first rocker 13 to rotate, and further drive the bolt block 3 to move through the first connecting rod 10 and the second rocker 14.

Specifically, the lock panel 1 is connected with a housing 2, the housing 2 and the lock panel 1 form a space for accommodating the coded lock and the linkage mechanism, and a lock tongue groove for allowing the lock tongue 3 to pass through is formed in the side surface of the housing 2.

Preferably, the bolt stroke of the coded lock is 10mm, the distance between adjacent coded locks is 150mm, the total stroke of the bolt block 3 is 20mm, and the stroke of the bolt block 3 when a coded lock is unlocked is 10 mm.

Referring to fig. 3, in the combination lock of the combination lock according to the embodiment of the present invention, when only the first combination lock 41 is unlocked, the first lock tongue 61 retracts, the first extension rod 7 drives the upper end of the first connecting rod 10 to move to the left, the upper end of the first connecting rod 10 moves to the left, the first step screw 15 fixed at the third end of the first connecting rod 10 drives the second rocker 14 to rotate, and the second step screw 16 fixed at the upper end of the second rocker 14 rotates to drive the lock tongue block 3 to move (retract) along the positioning step stud 19 by a half stroke through the limiting waist-shaped hole 22.

Referring to fig. 4, in the combination lock of the embodiment of the present invention, when only the second combination lock 42 is unlocked, the second lock tongue 62 retracts, the second extension rod 8 drives the upper end of the second connecting rod 11 to move left, the upper end of the second connecting rod 11 moves left, the second connecting rod 11 drives the third connecting rod 12 to move left, the third connecting rod 12 moves left to rotate the first rocker 13, the upper end of the first rocker 13 rotates to move left the lower end of the first connecting rod 10, the lower end of the first connecting rod 10 moves left, the first step screw 15 fixed at the third end of the first connecting rod 10 drives the second rocker 14 to rotate, and the second step screw 16 fixed at the upper end of the first rocker 13 rotates to drive the lock tongue block 3 to move (retract) along the positioning step screw stud 19 by half of the stroke through the limiting waist-shaped hole 22. When only the third combination lock 43 is unlocked, the linkage mechanism operates in a similar manner to that when only the second combination lock 42 is unlocked, and will not be described herein.

Referring to fig. 5, in the combination lock of the embodiment of the present invention, when the first combination lock 41 and the second combination lock 42 are opened, the first lock tongue 61 retracts, the first extension rod 7 drives the upper end of the first connecting rod 10 to move to the left, the upper end of the first connecting rod 10 moves to the left, the first step screw 15 fixed at the third end of the first connecting rod 10 drives the second rocker 14 to rotate, and the second step screw 16 fixed at the upper end of the second rocker 14 rotates to drive the lock tongue block 3 to move (retract) a half of the stroke along the positioning step stud 19 through the limiting waist-shaped hole 22; the second bolt 62 retracts, the upper end of the second connecting rod 11 is driven to move left through the second extension rod 8, the upper end of the second connecting rod 11 moves left, the second connecting rod 11 drives the third connecting rod 12 to move left, the third connecting rod 12 moves left to enable the first rocker 13 to rotate, the upper end of the first rocker 13 rotates to enable the lower end of the first connecting rod 10 to move left, the lower end of the first connecting rod 10 moves left, the first step screw 15 fixed at the third end of the first connecting rod 10 drives the second rocker 14 to rotate, the second step screw 16 fixed at the upper end of the second rocker 14 rotates to further drive the bolt block 3 to move (retract) for another half stroke along the positioning step stud 19 through the limiting waist-shaped hole 22, and the bolt block 3 is enabled to be located at the opening position of the combination lock. Vice versa, when the first combination lock 41 and the second combination lock 42 are closed, the strike 3 is moved into the closed position of the combination lock. When the first combination lock 41 and the third combination lock 43 are unlocked, the linkage mechanism operates in a manner similar to that when the first combination lock 41 and the second combination lock 42 are unlocked, and details are not described herein.

Referring to fig. 6, in the combination lock of the embodiment of the present invention, when the second combination lock 42 and the third combination lock 43 are opened, the second latch 62 retracts, the second extension rod 8 drives the upper end of the second connecting rod 11 to move left, the upper end of the second connecting rod 11 moves left, the second connecting rod 11 drives the third connecting rod 12 to move left, the third connecting rod 12 moves left to rotate the first rocker 13, the upper end of the first rocker 13 moves left the lower end of the first connecting rod 10 by its rotation, the lower end of the first connecting rod 10 moves left, the first step screw 15 fixed at the third end of the first connecting rod 10 drives the second rocker 14 to rotate, and the second step screw 16 fixed at the upper end of the second rocker 14 rotates by its rotation to drive the latch block 3 to move (retract) along the positioning step stud 19 by the waist-limiting hole 22 by a half stroke; the third bolt 63 retracts, the lower end of the second connecting rod 11 is driven to move left through the third extension rod 9, the lower end of the second connecting rod 11 moves left, the second connecting rod 11 drives the third connecting rod 12 to move left, the first rocker 13 is driven to rotate by the left movement of the third connecting rod 12, the lower end of the first connecting rod 10 moves left through the rotation of the upper end of the first rocker 13, the lower end of the first connecting rod 10 moves left, the first step screw 15 fixed at the third end of the first connecting rod 10 drives the second rocker 14 to rotate, and the second step screw 16 fixed at the upper end of the second rocker 14 drives the bolt block 3 to move (retract) along the positioning step stud 19 for another half stroke through the limiting waist-shaped hole 22 by the rotation of the second step screw 16, so that the bolt block 3 is located at the opening position of the combination lock. Vice versa, when the second combination lock 42 and the third combination lock 43 are closed, the strike 3 is moved into the closed position of the combination lock.

In summary, the combination lock of the embodiment of the utility model is formed by connecting three combination locks, a linkage mechanism and the bolt block 3, and the like, and the connecting rod and the rocker of the linkage mechanism are driven step by step, so that when one combination lock is arbitrarily opened, the combination lock is not opened, the length of the locking part of the bolt block 3 is more than or equal to 9mm, and when two combination locks are arbitrarily opened, the combination lock is opened.

Although the present invention has been described with respect to one or more embodiments thereof, it will be understood by those skilled in the art that the foregoing and various other changes, omissions and deviations in the form and detail thereof may be made without departing from the scope of this invention.

Claims (9)

1. The combination lock of the coded lock is characterized by comprising a lock panel, wherein a first coded lock, a second coded lock and a third coded lock are longitudinally fixed on one side of the lock panel, and a coded rotary disc is arranged on the other side of the lock panel corresponding to each coded lock; the first bolt of the first coded lock, the second bolt of the second coded lock and the third bolt of the third coded lock are connected with a bolt block through a linkage mechanism, the linkage mechanism comprises a first connecting rod movably connected with the first bolt and a second connecting rod movably connected with the second bolt and the third bolt, the second connecting rod is movably connected to a first rocker through a third connecting rod, and the first rocker is movably connected to the first connecting rod; the first connecting rod is movably connected with a second rocker, and the second rocker is movably connected with the bolt locking block; the lock bolts of the corresponding coded locks are controlled to sequentially extend or retract by rotating the coded turnplate, and then the lock bolt blocks are driven to sequentially extend or retract through the linkage mechanism.

2. The combination lock of claim 1, wherein both ends of the first link form a first end and a second end protruding toward one side of the combination lock, and a middle portion of the first link forms a third end protruding toward one side of the combination lock; a first step screw is fixed at the third end of the first connecting rod, a first waist-shaped hole matched with the first step screw is formed in the middle of the second rocker, and the first step screw is arranged in the first waist-shaped hole; one end of the second rocker is connected with the lock panel in a pin mode, a second step screw is fixed to the other end of the second rocker, a second waist-shaped hole matched with the second step screw is formed in the middle of the lock tongue block, the second step screw is arranged in the second waist-shaped hole, and when the first connecting rod moves, the second rocker is driven to rotate, and then the lock tongue block is driven to move.

3. The combination lock of the combination lock according to claim 2, wherein the locking tongue block is provided with two limiting waist-shaped holes along the length direction, the two limiting waist-shaped holes are respectively arranged at two sides of the second waist-shaped hole, the lock panel is fixed with a positioning step stud matched with the limiting waist-shaped holes, the positioning step stud is positioned in the limiting waist-shaped holes, and the positioning step stud limits the moving distance of the locking tongue block and guides the transverse movement when the locking tongue block moves, so that the locking tongue block only moves transversely.

4. A combination lock as claimed in claim 2, wherein the first slotted hole is provided along the length of the second rocker to allow the first link to move longitudinally relative to the second rocker when the first link rotates the second rocker.

5. A combination lock as claimed in claim 2, wherein the second slotted hole is formed along the width of the strike, allowing the second rocker to move longitudinally relative to the strike when the second rocker is rotated to move the strike.

6. The combination lock of claim 2, wherein the first tongue is connected to a first extension rod, the first extension rod being pinned to a first end of the first link; when the first lock tongue moves, the first connecting rod moves to drive the second rocker to rotate so as to drive the lock tongue block to move.

7. The combination lock of claim 2, wherein the second bolt is connected to a second extension rod, and the second extension rod is pinned to one end of a second link; the third bolt is connected with a third extension rod, the third extension rod and the second extension rod are the same in size, and the third extension rod is in pin joint with the other end of the second connecting rod; one end of the third connecting rod is in pin joint with the middle part of the second connecting rod, the other end of the third connecting rod is in pin joint with the middle part of the first rocker, one end of the first rocker is in pin joint with the lock panel, and the other end of the first rocker is in pin joint with the second end of the first connecting rod; when the second lock tongue and/or the third lock tongue move, the second connecting rod and the third connecting rod move to drive the first rocker to rotate, and then the lock tongue block is driven to move through the first connecting rod and the second rocker.

8. A combination lock of a combination lock as claimed in claim 1, wherein a casing is attached to the lock face plate, the casing and the lock face plate forming a space for accommodating the combination lock and the interlocking mechanism, and a locking bolt slot is provided in a side surface of the casing to allow the locking bolt to pass therethrough.

9. The combination lock of claim 1, wherein the bolt travel of adjacent combination locks is 10mm, the spacing between combination locks is 150mm, the total travel of the bolt blocks is 20mm, and the travel of the bolt blocks is 10mm when a combination lock is opened.

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