Integrated locking bolt mechanism

Abstract

An integrated locking tongue mechanism is characterized by comprising: a lock box and a locking tongue assembly; an output motor is located within an installation cavity, and an eccentric wheel shaft is fixed at the output end; the eccentric shaft on the eccentric wheel shaft is connected to a moving plate via a transmission mechanism; the moving plate is slidably mounted on the lock cover, and has a lateral protrusion on its top, which drives the locking tongue assembly to move left and right via a transmission assembly; and an emergency unlocking mechanism, comprising a connecting plate rotatably mounted on the lock box, one end of which is movably connected to a fork on an emergency lock, and the other end of which is abutting against one end of a lock hook mounted on the lock box; the other end of the corresponding lock hook engages with the lock hook portion of a fixed base for mutual locking or unlocking, preventing the lock box from moving under normal conditions; and unlocking the lock box by moving it via the connecting plate when the emergency lock is rotated. The mechanism is structurally sound, ingeniously designed, and easy to operate.

Description

Technical Field

[0001] This invention relates to the field of locks for use with safes and cabinets, and more particularly to an integrated locking mechanism. Background Technology

[0002] A burglarproof safe is a special container whose main function is to help users protect important documents and valuables. Safes can be divided into two types: mechanical and electronic. Electronic lock safes are further divided into two types according to their unlocking mechanism: one type unlocks automatically via a handle, which rotates the internal mechanism; this type is mainly used for slightly larger safes. The other type uses a motor-driven mechanism where the door automatically opens after the electronic lock is unlocked. This invention falls under the category of automatic door opening after electronic lock unlocking. Safes on the market generally have the following problems: Ordinary motor mechanisms have two issues. First, after the motor mechanism drives the sliding door bolt into the door frame and enters the locked state, the bolt cannot withstand axial force because the mechanism relies on the motor turntable for support and the motor lacks a self-locking function, making it easily damaged. Second, motor-driven products generally do not have a handle. After the motor drives the bolt to retract, the door panel will be opened by a top spring. However, this presents a problem: when closing the door, the user must manually push the door open for a period of time. If the user releases their hand too early, before the bolt is locked, the door will be pushed open again by the top spring. If the customer does not notice this, it may cause a false lock or the motor to jam, posing a significant safety hazard and requiring design improvements. Summary of the Invention

[0003] This invention addresses the problems of existing technologies by proposing an integrated locking tongue mechanism. When the emergency lock is in the locked state, this structure will keep the entire mechanism in a self-locking state, making it less prone to damage due to axial force. The structure is reasonable, the design is ingenious, and the operation is simple.

[0004] The technical solution of the present invention is: an integrated locking tongue mechanism, characterized in that it includes:

[0005] A lock box, comprising a lock body and a lock cover, is combined together, with its interior forming an installation cavity;

[0006] A latch assembly includes at least one latch, with a latch spring arranged at the rear end of the latch. The latch spring always applies an outward thrust to keep the latch in a pop-out tendency.

[0007] An output motor is installed inside the mounting cavity, and an eccentric wheel shaft is fixed at the output end;

[0008] A movable plate is slidably mounted on the lock cover, with a lateral protrusion at the bottom. It drives the lock tongue assembly to move left and right through a transmission assembly. The front end is fixed with a door bolt assembly. When the movable plate moves, it drives the door bolt assembly to move. The movable plate is connected to the eccentric shaft on the eccentric wheel axle through a transmission connection.

[0009] An emergency unlocking mechanism includes a connecting plate rotatably mounted on a lock box. One end of the connecting plate is movably connected to a fork on an emergency lock, and the other end of the connecting plate is in contact with one end of a lock hook that is swayably mounted on the lock box. The other end of the corresponding lock hook engages with the lock hook portion of a fixed base for mutual locking or unlocking. Under normal conditions, this prevents the lock box from moving. When the emergency lock is rotated, the connecting plate unlocks the lock box and then drives it to move.

[0010] A fixed base is installed on the door panel, allowing the lock box to be moved left and right within the fixed base.

[0011] As an improvement, the transmission assembly includes a transmission seat and a connector. The transmission seat has a lateral recess that engages with a lateral protrusion on the moving plate. The transmission seat also has an upward recess. Correspondingly, a latch frame is assembled at the rear of the latch. A limit guide hole is opened at the bottom of the latch frame, so that the upper and lower ends of the connector are respectively inserted into the upward recess on the transmission seat and the upper limit guide hole at the top of the latch frame.

[0012] Further improvements include a horizontal groove for the transmission seat to slide, a hollowed-out front part of the bottom surface of the horizontal groove forming an insert with a bevel, an opening on the inner side of the transmission seat for the insert to be inserted or removed, and a mating bevel on the bottom surface of the middle part of the connector to mate with the insert with the bevel.

[0013] Preferably, the connector is fitted with a floating spring to keep it elastically floating.

[0014] Furthermore, the locking hook is an inverted L-shape, with a fixing post at the lower end and a locking hook spring sleeved thereon. The other end of the locking hook spring is fixed to the fixing post on the side of the lock body. The locking hook spring always applies an outward thrust to help the hook part of the locking hook engage with the locking hook part of the fixing seat.

[0015] Furthermore, the bottom of the lock box mounting cavity is provided with front and rear micro switches, and the upper part of the corresponding movable plate is provided with lateral front and rear abutment blocks, which abut and cooperate with the front and rear micro switches to realize the limiting function.

[0016] Furthermore, the movable plate is provided with a vertical drive groove, which allows the eccentric shaft to be inserted into the drive groove to achieve a transmission connection.

[0017] Furthermore, the fixing seat includes a mating fixing seat body and a fixing cover. The fixing seat body has a U-shaped cross section, and the top and bottom of the fixing seat body are provided with guide limiting holes. Correspondingly, the lock box is provided with a slider to realize the limiting and guiding cooperation.

[0018] Furthermore, the lock cover has multiple rows of guide posts, which also serve as screw posts. The movable plate has corresponding guide holes for hanging on the guide posts, and the fixed cover has corresponding screw holes for fixing to the screw posts with screws.

[0019] Finally, the lower part of the connecting plate has a waist-shaped hole for inserting the shift fork, and the upper end of the connecting plate has an arc-shaped flange that abuts against the concave arc surface of the lower middle part of the locking hook.

[0020] Compared with the prior art, the advantages of this invention are as follows: when the emergency lock is in the locked state, the bolt is protected from axial force to prevent damage, and the locking function is cleverly increased through the emergency unlocking mechanism, and the force-bearing capacity is greatly improved through the fixing seat; the bolt assembly is equivalent to a bolt with an added beveled bolt, which increases the locking ability; and by using the connector, transmission seat and its beveled insert, the problem of false locking can be effectively prevented, safety hazards can be avoided, and the structure is safer and more reliable. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0022] Figure 2 This is a rear view of the present invention;

[0023] Figure 3 This is a three-dimensional structural diagram of the present invention (from another angle);

[0024] Figure 4 This is a schematic diagram of the structure of the present invention after the lock cover is removed;

[0025] Figure 5 This is an exploded view of the structure of the present invention;

[0026] Figure 6 This is an exploded view of the structure of the present invention (from another angle);

[0027] Figure 7 This is a further exploded view of the structure of the present invention;

[0028] Figure 8 This is a diagram showing the structure of the present invention in the safe's usage state (open door state).

[0029] In the diagram, 1. Lock box, 2. Lock body, 3. Lock cover, 4. Mounting cavity, 5. Latch assembly, 6. Latch, 7. Latch spring, 8. Eccentric wheel axle, 9. Moving plate, 10. Lateral protrusion, 11. Bolt assembly, 12. Emergency unlocking mechanism, 13. Connecting plate, 14. Fork, 15. Lock hook, 16. Fixing base, 17. Emergency lock, 18. Transmission assembly, 19. Transmission base, 20. Connecting piece, 21. Lateral recess, 22. Upward recess, 23. Latch bracket, 24. Limiting guide hole, 25. Lateral slide groove, 26. Insert 27. Inclined surface, 28. Waist-shaped hole, 29. Hook, 30a. Front micro switch, 30b. Rear micro switch, 31. Drive slot, 32. Eccentric shaft, 33. Guide post, 34. Output motor, 35. Fixed base, 36. Fixed cover, 37. Guide limit hole, 38. Slider, 39. Guide straight hole, 40. Screw hole, 41. Locking hook, 42. Arc-shaped flange, 43. Concave arc surface, 44a. Front abutment block, 44b. Rear abutment block, 45. Locking hook spring, 46. Floating spring, 47. Top door spring. Detailed Implementation

[0030] The embodiments of this invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this invention. In the description of this invention, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0031] In the description of this invention patent, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention patent based on the specific circumstances.

[0032] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0033] like Figures 1 to 8An integrated latch mechanism for use in a safe includes a lock box 1, which has a lock body 2 and a lock cover 3, which are combined together and have an internal mounting cavity 4; a latch assembly 5, which includes at least one latch 6, with a latch spring 7 arranged at the rear end of the latch 6, which always applies an outward pushing force to keep the latch 6 in an extended state; and an output motor 34 located in the mounting cavity 4, with an eccentric wheel shaft 8 fixed at the output end. The eccentric wheel shaft 8 is an eccentric wheel with an eccentric shaft 32 mounted on it, and the eccentric shaft 32 is connected to a moving plate 9 for transmission. The moving plate 9 is slidably mounted on the lock cover 3, and the bottom of the moving plate 9 has a lateral protrusion 10, which drives the lock through a transmission assembly 18. The tongue assembly 5 moves left and right. A bolt assembly 11 is fixed to the front end of the moving plate 9. When the moving plate 9 moves, it drives the bolt assembly 11 to move, thus unlocking the bolt assembly. There is also an emergency unlocking mechanism 12, which includes a connecting plate 13 rotatably mounted on the lock box 1. One end of the connecting plate 13 is movably connected to the fork 14 on the emergency lock 17, and the other end of the connecting plate 13 is abutted against one end of a lock hook 15 swayably mounted on the lock box 1. The other end of the corresponding lock hook 15 engages with the lock hook portion 41 of the fixed seat 16 for locking or unlocking. Under normal conditions, this prevents the lock box 1 from moving. When the emergency lock 17 rotates, the connecting plate 13 unlocks the lock box 1, causing it to move and thus unlocking it. The fixed seat 16 is mounted on the door panel, allowing the lock box 1 to move left and right within it. The lower part of the connecting plate 13 has an open slot 28 for inserting the quick-lock fork 14. The upper end of the connecting plate 13 has an arc-shaped flange 42, which abuts against the concave arc surface 43 of the upper middle part of the lock hook 15. The lock hook 15 is an inverted L-shape, with a fixing post at the lower end housing a lock hook spring 45. The other end of the lock hook spring 45 is fixed to a fixing post on the side of the lock body 2. The lock hook spring 45 always applies an outward pushing force, helping the hook part 29 of the lock hook 15 to lock with the hook part 41 of the fixing seat 16, thus achieving a self-locking function. (See [reference]). Figure 2 .

[0034] The transmission assembly 18 includes a transmission seat 19 and a connecting member 20. The transmission seat 19 has a lateral recess 21 that engages with a lateral protrusion 10 on the moving plate 9 to achieve transmission. The transmission seat 19 also has an upward recess 22. Correspondingly, a latch bracket 23 is assembled at the rear of the latch 6. A limiting guide hole 24 is opened at the bottom of the latch bracket 23, allowing the upper and lower ends of the connecting member 20 to be inserted into the upward recess 22 on the transmission seat 19 and the limiting guide hole 24 at the bottom of the latch bracket 23, respectively. The top of the mounting cavity 4 of the lock box 1 is provided with a front micro switch 30a and a rear micro switch 30b. The top of the corresponding moving plate 9 is provided with a lateral front abutment block 44a and a rear abutment block 44b, which engage with the front and rear micro switches. The moving plate 9 has a vertical drive groove 31, into which an eccentric shaft 32 is inserted to achieve transmission connection. (See [reference]). Figure 6 , 7 .

[0035] The lock body 2 has a transverse groove 25 for the transmission seat 19 to slide. The bottom of the transverse groove 25 is hollowed out at the front and formed into an insertion part 26 with a bevel 27. The inner side of the transmission seat 19 has an opening for the insertion part 26 to be inserted or removed. The bottom surface of the middle part of the connector 20 is provided with a bevel to cooperate with the insertion part 26 with the bevel 27. A floating spring 46 is fitted on the connector 20 to keep it elastically floating. The fixed seat 16 includes a mating fixed seat body 35 and a fixed cover 36. The fixed seat body 35 has a U-shaped cross section. The top and bottom of the fixed seat body 35 are provided with guide limiting holes 37. Correspondingly, the lock body 2 is provided with a slider 38 to realize the limiting and guiding cooperation. The lock cover 3 has multiple rows of guide posts 33, which also serve as screw posts. The movable plate 9 has corresponding guide holes 39 that are hung on the guide posts 33. Furthermore, the fixed cover 36 has corresponding screw holes 40 that are fixed to the screw posts with screws. This allows the lock box 1 to be movably positioned in the fixed base 16. (See [reference]) Figure 7 , 4 .

[0036] When the user unlocks the device using this product, the output motor 34 drives the eccentric shaft 32 on the eccentric wheel shaft 8, which cooperates with the drive groove 31 of the moving plate 9 to move the moving plate 9 left and right. Simultaneously, the bolt assembly 11 on the moving plate 9 is also driven, thus opening and closing the bolt assembly 11. The top of the moving plate 9 has a lateral protrusion 10, which drives the latch assembly 5 via the transmission assembly 18 to achieve the unlocking function of the latch 6.

[0037] When the lock is opened, the output motor 34 drives the moving plate 9 backward. Simultaneously, because one end of the moving plate 9 has a connector 20 inserted into the transmission seat 19, and the bottom of the latch bracket 23 has a limit guide hole, the connector 20, under the action of the floating spring, extends into the corresponding limit guide hole of the latch bracket 23. This causes the upper and lower ends of the connector 20 to be inserted into the upward recess on the transmission seat 19 and the upper limit guide hole 24 at the bottom of the latch bracket 23, respectively. Therefore, the backward movement of the moving plate 9 will drive the transmission seat 19 backward, simultaneously driving the connector 20 and the bolt backward. When it reaches the inclined surface below the connector 20 and the corresponding inclined surface on the lock body, it will continue to move, thus connecting the connector... When connector 20 is pushed down, the upper part of connector 20 disengages from the upper limit guide hole 24 at the bottom of the latch bracket 23. During this process, the bolt will disengage from the door frame earlier. Before connector 20 is pushed in (when the inclined surface just makes contact), the bolt has already disengaged from the door frame. At this time, the door panel is popped out by the top door spring 47, and the door panel is open. Then, the moving plate 9 continues to move a little further, and the inclined surface of the lock body will push connector 20 down. As connector 20 retracts, it disengages from the upper limit guide hole 24 at the bottom of the latch bracket 23. The latch bracket 23 extends and resets under the action of the latch spring 7, simultaneously driving the bolt to extend and reset, completing the entire door opening process and preparing for the next closing. Another advantage of this is that it adds a latch in the middle, similar to an inclined bolt, which increases the locking strength and avoids false locking.

[0038] When a user needs to unlock the device in an emergency, they simply need to turn the emergency lock 17. The fork 14 on the emergency lock 17 drives the lock hook 15 to rotate via the connecting plate 13, thereby forcing the hook 29 on the lock hook 15 to engage with the lock hook 41 on the fixed seat 16 to unlock the device. This then moves the lock box 1 to achieve the unlocking function. The advantage of this design is that when the emergency lock 17 is locked, this structure keeps the entire mechanism locked. Only by turning the key to move the fork 14 of the emergency lock to a parallel position, and pressing down one end of the fork 14 to disengage the hook 29 from the locked position on the fixed seat 16, and continuing to turn the fork 14, can the lock box 1 housing in the middle move backward, causing the moving plate 9 and the bolt assembly 11 to move backward as a whole, allowing the bolt to disengage from the door frame and completing the opening action. Without this mechanism, the entire mechanism would rely on the lock head to bear the force, which would be relatively small. With this structure, the mounting base connected to the fixed seat 16 bears the force, which is larger. Even if the mechanical lock is damaged or knocked off, the emergency lock's fork 14 will not rotate, and the mechanism cannot be opened, thus achieving better security performance.

Claims

1. An integrated locking tongue mechanism, characterized in that... Including: A lock box, comprising a lock body and a lock cover, is combined together, with its interior forming an installation cavity; A latch assembly includes at least one latch, with a latch spring arranged at the rear end of the latch. The latch spring always applies an outward thrust to keep the latch in a pop-out tendency. An output motor is installed inside the mounting cavity, and an eccentric wheel shaft is fixed at the output end; A movable plate is slidably mounted on the lock cover, with a lateral protrusion at the bottom. It drives the lock tongue assembly to move left and right through a transmission assembly. The front end is fixed with a door bolt assembly. When the movable plate moves, it drives the door bolt assembly to move. The movable plate is connected to the eccentric shaft on the eccentric wheel axle through a transmission connection. An emergency unlocking mechanism includes a connecting plate rotatably mounted on a lock box. The lower part of the connecting plate has an oblong hole for inserting a fork of the emergency lock, so that one end of the connecting plate is movably connected to the fork on the emergency lock. The other end of the connecting plate is in contact with one end of a lock hook that is swayably mounted on the lock box. Correspondingly, the other end of the lock hook is mutually locked or unlocked with the lock hook part of the fixed base. Under normal conditions, it prevents the lock box from moving. When the emergency lock is rotated, it is unlocked through the connecting plate and then the lock box is moved. A fixed base is installed on the door panel, allowing the lock box to be moved left and right within the fixed base.

2. The integrated locking tongue mechanism according to claim 1, characterized in that... The transmission assembly includes a transmission base and a connector. The transmission base has a lateral recess that engages with a lateral protrusion on the moving plate. The transmission base also has an upward recess. Correspondingly, a latch frame is assembled at the rear of the latch. A limit guide hole is opened at the bottom of the latch frame, so that the upper and lower ends of the connector are respectively inserted into the upward recess on the transmission base and the upper limit guide hole at the top of the latch frame.

3. The integrated locking tongue mechanism according to claim 2, characterized in that... The lock body has a transverse groove for the transmission seat to slide. The front part of the bottom surface of the transverse groove is hollowed out and formed into an insert with a bevel. The inner side of the transmission seat has an opening for the insert to be inserted or removed. The bottom surface of the middle part of the connector is provided with a mating bevel to cooperate with the insert with the bevel.

4. The integrated locking tongue mechanism according to claim 3, characterized in that... The connector is fitted with a floating spring to keep it elastically floating.

5. The integrated locking tongue mechanism according to claim 1, characterized in that... The locking hook is an inverted L-shape, with a fixing post at the lower end and a locking hook spring. The other end of the locking hook spring is fixed to the fixing post on the side of the lock body. The locking hook spring always applies an outward thrust to help the hook part of the locking hook engage with the locking hook part of the fixing seat.

6. The integrated locking tongue mechanism according to claim 1, characterized in that... The bottom of the mounting cavity is provided with front and rear micro switches, and the upper part of the corresponding movable plate is provided with lateral front and rear abutment blocks, which abut and cooperate with the front and rear micro switches to realize the limiting function.

7. The integrated locking tongue mechanism according to claim 1, characterized in that... The movable plate is provided with a vertical drive groove, which allows the eccentric shaft to be inserted into the drive groove to achieve a transmission connection.

8. The integrated locking tongue mechanism according to claim 1, characterized in that... The fixing seat includes a mating fixing body and a fixing cover. The fixing body has a U-shaped cross section and guide limiting holes are provided at the top and bottom of the fixing body. Correspondingly, a slider is provided on the lock box to realize the limiting and guiding cooperation.

9. The integrated locking tongue mechanism according to claim 8, characterized in that... The lock cover has multiple rows of guide posts, which also serve as screw posts. The movable plate has corresponding guide holes and is hung on the guide posts. The fixed cover has corresponding screw holes and is fixed to the screw posts with screws.

10. The integrated locking tongue mechanism according to claim 1, characterized in that... The upper end of the connecting plate has an arc-shaped flange that abuts against the concave arc surface of the lower middle part of the locking hook.

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