Separating type mechanical lock with double lock heads

Abstract

The utility model relates to a separated mechanical lock with double lock heads, and belongs to the technical field of locks. A separating type mechanical lock with double lock heads comprises an outer handle, a front covering plate, a rear covering plate and a lock body, the outer handle is separated from the front covering plate, the separating type mechanical lock is provided with a double-lock mechanism, the double-lock mechanism comprises a lock cylinder, a main tongue assembly, a locking plate, a blocking control plate and an auxiliary tongue shifting block, and the double-lock mechanism is located between an inclined tongue and an inserting tongue. According to the utility model, the outer handle and the front cover plate are separately designed, the outer cover plate is simultaneously provided with the outer handle insertion hole and the double-key insertion hole, and through the double-lock mechanism arranged on the lock body, the management of the opening mode of the door lock is safer and stricter, the management of one to three levels can be realized, the risk is reduced, and the double-lock mechanism is particularly suitable for the hierarchical management of door locks for special parts.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of separated mechanical lock with double lock head, belong to mechanical lock structure technical field. BACKGROUND

[0002] At present, the special part door lock of military police and other confidential units is implemented hierarchical management, when opening the door, it needs more than two people to open, and the opening mode of the door lock is required strictly, ordinary door lock has greater risk in security and does not comply with organization management procedure. UTILITY MODEL CONTENTS

[0003] The utility model aims at solving the various problems mentioned above, and further provides a kind of separated mechanical lock with double lock head. The separated mechanical lock is particularly suitable for the lock with special requirements, and can realize hierarchical management and higher security.

[0004] To solve the above problems, the technical scheme adopted by the utility model is:

[0005] A kind of separated mechanical lock with double lock head, including lock body assembly, outer cover plate assembly and inner cover plate assembly;Its speciality is further including:

[0006] Outer handle, the outer handle is with the outer cover plate assembly with the separable way plug-in adaptation;

[0007] Double keyhole, the double keyhole is opened in the front end housing of the outer cover plate assembly, including keyhole one and keyhole two;

[0008] Lock head one, the lock head one is configured in outer cover plate assembly, with keyhole one and is opened by key one control;

[0009] Lock head two, the lock head two is configured in lock body assembly, with keyhole two and is opened by key two control;

[0010] Locking mechanism one, to realize first unlocking, including by lock head one driven auxiliary lock block, and by auxiliary lock block driven control board, the control board is used to realize the unlocking of lock head two;

[0011] Locking mechanism two, to realize second unlocking, including by lock head two driven lock head block, and by lock head block driven control locking plate, the locking plate is used to realize the unlocking of main tongue assembly.

[0012] Further, the outer cover plate assembly front end face is provided with outer handle insertion hole, the outer handle insertion hole is for outer handle plug-in adaptation to realize the plug-in of outer handle and outer cover plate assembly and separation.

[0013] Further, the matching plug structure between the outer handle and the outer cover assembly specifically comprises a plug part provided on the outer handle and a socket part provided on the surface of the outer cover assembly; the plug part of the outer handle has an inner pentagonal hole in the middle of the front end; the socket part of the outer cover assembly has a pentagonal shaft protrusion.

[0014] Further, the pentagonal shaft protrusion of the outer cover assembly is provided with an elastic pressing piece around the periphery, which can be kept flush with the pentagonal shaft protrusion and the front end surface shell of the outer cover assembly in the elastic free state.

[0015] Further, the lock head push block is driven and controlled by the lock head two and is locked and unlocked by the blocking plate.

[0016] Further, the blocking plate is slidingly installed in the lock body assembly and has a first pushing surface and a second pushing surface driven by the secondary lock push block and a locking protrusion for providing the lock head push block with locking and unlocking functions; when the blocking plate is in the locking position, the locking protrusion is located on one side of the lock head push block and locks it, at this time, the lock head two is in the locked state and cannot be opened, when the lock head one is opened, the secondary lock push block drives the blocking plate to unlock the lock head push block by the locking protrusion, completing the first-level unlocking.

[0017] Further, the locking plate is slidingly installed in the lock body assembly and is used to lock and unlock the main tongue assembly and has a locking groove matched with the main tongue assembly and an unlocking part pushed by the lock head push block; the locking groove is used to match the locking column of the main tongue assembly; when the lock head push block rotates, the unlocking part of the locking plate is triggered to slide, so that the locking groove of the locking plate is separated from the locking column of the main tongue assembly, completing the second-level unlocking.

[0018] Further, the lock body assembly, the outer cover plate and the inner cover plate are connected through square shafts.

[0019] Further, the outer handle transmits the torque to the square shaft through the pentagonal shaft protrusion of the outer cover assembly, the square shaft is provided with a main tongue push block, the main tongue push block drives a main tongue push rod connected to the main tongue push block, and the main tongue push rod drives the main tongue assembly.

[0020] The separated mechanical lock with double lock heads separates the outer handle from the front cover plate, simultaneously provides the outer cover plate with an outer handle insertion hole and a double key insertion hole, is provided with a double lock mechanism, is more safe and strict in the opening mode management of the door lock, can realize one to three level management, reduces the risk, and is especially suitable for the hierarchical management of door locks in special positions. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a schematic diagram of the overall structure of the separated mechanical lock with double lock heads of embodiment one;

[0022] Figure 2 is the schematic diagram of the mounting relationship structure of the outer cover plate and the outer handle;

[0023] Figure 3 is the schematic diagram of the plug-in structure of the outer cover plate and the outer handle;

[0024] Figure 4 is the schematic diagram of the locking state structure of the split mechanical lock;

[0025] Figure 5 is the schematic diagram of the unlocking state structure of the split mechanical lock;

[0026] Figure 6 is the schematic diagram of the blocking plate structure;

[0027] Figure 7 is the schematic diagram of the locking plate structure;

[0028] Figure 8 is the schematic diagram of the main tongue assembly structure. DETAILED DESCRIPTION

[0029] The specific technical solutions of the present application will be described in detail below in the form of specific embodiments combined with the drawings. It should be understood that the embodiments described by referring to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0030] Embodiment one

[0031] A split mechanical lock with double lock heads comprises a lock body assembly 3, an outer cover plate assembly 2 and an inner cover plate assembly 4 installed on the front and rear sides of the lock body assembly 3, and an inner handle 7 and an outer handle 1 respectively matched with the inner and outer cover plate assemblies. Among them, the outer cover plate assembly 2 is installed on the outdoor side, the outer handle 7 and the outer cover plate assembly 2 are a separable plug-in structure, the inner cover plate assembly 4 is installed on the indoor side and is prohibited from being locked from the indoor side, the inner handle 7 and the inner cover plate assembly 4 are fixedly connected, and the lock body can be directly rotated by the inner handle 7 without the help of a key. The lock body assembly 3 is connected with the outer cover plate 2 and the inner cover plate 4 through a square shaft.

[0032] The outer handle plug hole 21 is provided on the front end face of the outer cover plate assembly 2, and the outer handle plug hole 21 is plugged in and matched with the outer handle 1 to realize the plug-in and separation of the outer handle 1 and the outer cover plate assembly 2.

[0033] The front end face of the outer cover assembly 2 is provided with double keyholes 22 distributed in upper and lower positions, including upper keyhole two and lower keyhole one. The inner part of the outer cover assembly 2 is provided with lock head one 5 matched with the keyhole one, and key one is inserted into the keyhole one and rotates the lock head one 5 to drive the double locking mechanism in the inner part of the lock body assembly 3. The inner part of the lock body assembly 3 is provided with lock head two 6 matched with the keyhole two, and key two is inserted into the keyhole two and rotates the lock head two 6 to drive the double locking mechanism in the inner part of the lock body assembly 3.

[0034] The double locking mechanism is arranged in the inner part of the lock body assembly 3, including auxiliary lock block 31, control plate 32, lock block 33, locking plate 34 and main tongue assembly 35; wherein the auxiliary lock block 31 is driven and controlled by the lock head one 5, the lock block 33 is driven and controlled by the lock head two 6 and is simultaneously locked and unlocked by the control plate 32. The auxiliary lock block 31 is used to control the control plate 32; the control plate 32 is slidably installed on the guide column of the lock housing 30 through the first guide groove 32a and the second guide groove 32d, and includes the first push surface 32b and the second push surface 32c driven by the auxiliary lock block 31, and the locking block 32e used to provide the locking and unlocking function of the lock block 33; when the control plate 32 is in the locking position, the locking block 32e is located on one side of the lock block 33 and locks it, at this time the lock head two 6 is in the locked state and cannot be opened, when the lock head one 5 is opened, the auxiliary lock block 31 drives the control plate 32 to slide to the unlocking side, so that the locking block 32e releases the locking of the lock block 33, at this time the key two can rotate to open the lock head two 6, so as to control the lock block 33 to rotate and open. The locking plate 34 is slidably installed on the lock housing 30, and is used to realize the locking and unlocking of the main tongue assembly 35. The locking plate 34 has the first sliding groove 34h and the second sliding groove 34i slidably connected with the lock housing 30, and also has a locking groove 34g, the locking groove 34g is used to lock and unlock the main tongue assembly 35, the main tongue assembly 35 has a lock column 35a matched with the locking groove 34g, when the lock block 33 rotates, the locking plate 34 is pushed upward to make the locking groove 34g of the locking plate 34 disengage from the lock column 35a, so as to release the locking of the main tongue assembly 35, at this time rotating the outer handle 1 can pull the main tongue assembly 35 back through the main tongue lever 36.

[0035] The outer handle 1 is detachably connected with the outer cover plate assembly 2 through an adaptive plug-in structure, which specifically comprises a plug-in part 11 arranged on the outer handle 1 and a socket part 23 arranged on the surface of the outer cover plate assembly 2. The plug-in part 11 of the outer handle 1 is perpendicular to the front end surface of the outer cover plate assembly 2 and specifically comprises a fixing sleeve 11a with a square hole and a plug 11b with a square shaft, the plug 11b is mounted on the fixing sleeve 11a through a bolt 11c, and the front end of the plug 11b is provided with an inner pentagonal hole. The socket part of the outer cover plate assembly 2 is provided with a pentagonal shaft protrusion 23a and an elastic pressing piece 23b arranged on the periphery of the socket part, the elastic pressing piece 23b is in a free state and can be kept flush with the pentagonal shaft protrusion 23a and the front end surface of the outer cover plate assembly 2, when the outer handle 1 is plugged into the outer cover plate assembly 2, the elastic pressing piece 23b is pushed inward, when the outer handle 1 is rotated, the torque is transmitted to the square shaft through the plug-in structure between the outer handle 1 and the outer cover plate assembly 2, and then the square shaft is rotated in the lock body assembly 3 to drive the main tongue lever 36, and then the main tongue lever 36 drives the main tongue assembly 35.

[0036] The unlocking process of the separation type mechanical lock is as follows:

[0037] Firstly, the key one is inserted into the inside of the lock head one 5, the lock head one 5 is rotated and drives the secondary lock block 31 to swing, thereby pushing the blocking plate 32 to slide along the unlocking side, so that the locking protrusion 32e on the blocking plate 32 releases the locking of the lock head block 33, at this time, the lock head two 6 is in an unlockable state.

[0038] Then, the key two is inserted into the lock head two 6, when the lock head two 6 is rotated, the lock head block 33 pushes the locking plate 34 to release the locking of the main tongue assembly 11.

[0039] Finally, the outer handle 1 is lifted, the main tongue lever 36 is driven by the outer handle 1, the main tongue assembly 11 is retreated by the main tongue lever 36, and the unlocking is completed.

[0040] The separation type mechanical lock with double lock heads has the following technical characteristics and advantages compared with the traditional similar lock:

[0041] 1. The front cover plate and the outer handle are separated, the outer handle is provided with an outer handle head, the inner pentagonal hole of the outer handle head and the pentagonal shaft of the outer cover plate outer handle seat are pressed into the fixed direction and the double-key plug-in and pull-out realize the linkage opening of the lock.

[0042] 2. The outer cover plate is provided with double-key holes, the lock is provided with double lock heads, the lock head one is arranged on the outer cover plate, the lock head two is arranged on the lock body, and the double lock opening can be realized, and the hierarchical management can be realized in special units

[0043] 3. The outer handle cooperates with a front cover plate, the front cover plate cooperates with a lock body, the internal components of the lock body are driven by double locks, and the outer handle is opened.

Claims

1. A breakaway mortise lock having a double lock cylinder, comprising a lock body assembly, an outer rose assembly, and an inner rose assembly; characterized in that, Also included are: An outer handle which is detachably inserted into the outer cover assembly; A double keyhole which is provided on the front end of the outer cover assembly, including a first keyhole and a second keyhole; A first lock head which is arranged in the outer cover assembly and is controlled by the first keyhole and the first key; A second lock head which is arranged in the lock body assembly and is controlled by the second keyhole and the second key; A first locking mechanism which is used to achieve a first level of unlocking, including a secondary lock block which is driven by the first lock head, and a blocking plate which is driven by the secondary lock block and is used to achieve unlocking of the second lock head; A second locking mechanism which is used to achieve a second level of unlocking, including a lock block which is driven by the second lock head, and a locking plate which is driven by the lock block and is used to achieve unlocking of the main tongue assembly.

2. The detachable mechanical lock with double lock heads according to claim 1, wherein: The front end of the outer cover assembly is provided with an outer handle insertion hole, and the outer handle is inserted into the outer handle insertion hole to achieve insertion and detachment of the outer handle and the outer cover assembly.

3. The detachable mechanical lock with double lock heads according to claim 2, wherein: The insertion and detachment structure between the outer handle and the outer cover assembly specifically includes an insertion part provided on the outer handle and a socket part provided on the surface of the outer cover assembly; the insertion part of the outer handle has an inner five-angle hole in the middle of the front end; and the socket part of the outer cover assembly has a five-angle shaft protrusion.

4. The detachable mechanical lock with double lock heads according to claim 3, wherein: The five-angle shaft protrusion of the outer cover assembly is provided with an elastic pressing piece around the periphery, and the elastic pressing piece can be kept flush with the five-angle shaft protrusion and the front end housing of the outer cover assembly in a free state of being popped up.

5. The detachable mechanical lock with double lock heads according to claim 1, wherein: The lock block is driven and controlled by the second lock head and is unlocked by the blocking plate.

6. The detachable mechanical lock with double lock heads according to claim 5, wherein: The blocking plate is slidingly installed in the lock body assembly and has a first push surface and a second push surface which are driven by the secondary lock block, and a locking protrusion which is used to provide locking and unlocking functions for the lock block; when the blocking plate is in a locking position, the locking protrusion is located on one side of the lock block and locks it, at this time the second lock head is in a locked state and cannot be opened, and when the first lock head is opened, the secondary lock block drives the blocking plate to remove the locking of the lock block by the locking protrusion, completing the first level of unlocking.

7. The detachable mechanical lock with double lock heads according to claim 6, wherein: The locking plate is slidingly installed in the lock body assembly and is used to achieve locking and unlocking of the main tongue assembly, and has a locking groove which is matched with the main tongue assembly and an unlocking part which is pushed by the lock block; the locking groove is used to adapt to the locking column of the main tongue assembly; when the lock block is rotated, the unlocking part of the locking plate is triggered to slide, so that the locking groove of the locking plate is separated from the locking column of the main tongue assembly, completing the second level of unlocking.

8. A split mechanical lock with double lock head as claimed in claim 1 wherein, the lock body assembly is linked with the outer cover plate and inner cover plate through a square shaft.

9. A split mechanical lock with double lock head as claimed in claim 8 wherein, the outer handle transfers the torque to the square shaft through the pentagonal shaft protrusion of the outer cover plate assembly, the square shaft is fitted with a main tongue lever, the main tongue lever actuates the main tongue lever rod, the main tongue lever rod drives the main tongue assembly.

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