Integrated door lock structure for small safe deposit box

Abstract

An integrated door lock structure for a small safe deposit box. The integrated door lock structure comprises a sliding plate (2) provided with latches (4) at the right end, a lock (9), and a sliding plate driving structure, and further comprises a cover (1) fixed on the back of a box door (10); the cover (1) is provided with a mounting cavity (Q) having an open lower end; the sliding plate (2) is constrained in the inner bottom surface of the cover (1) and can move in a left-right direction; the right side wall of the cover (1) is provided with through holes (13) for the latches (4) to pass through; and the lock (9) and the driving structure are both mounted on the inner bottom surface of the cover (1).

Description

Integrated door lock structure for small safe deposit boxes Technical Field

[0001] This utility model relates to a safe door locking structure, specifically to an integrated door lock structure for a small safe. Background Technology

[0002] Existing safe door locking mechanisms include a drive mechanism mounted on the door panel and a lock mechanism that uses the drive mechanism to close and open the door. The lock mechanism typically includes a sliding plate, a latch connected to the sliding plate, a lock for securing the sliding plate, and a drive mechanism for moving the sliding plate. The assembly is complex, and the overall cost of the latch mechanism is relatively high. For safe doors used in daily life, improving their cost-effectiveness is a major concern for ordinary households.

[0003] For example, the Chinese utility model patent "Four-Sided Latch Mechanism for Safe Door" with patent number ZL200920117151.X (publication number CN201381698Y) discloses a mechanism including a door panel, a front slide plate connected to a front latch, an upper slide plate connected to an upper latch at its upper end, and a lower slide plate connected to a lower latch at its lower end. The front end of a connecting plate is connected to the front slide plate via a front drive pin, and the rear end of the connecting plate is connected to the rear slide plate via a rear drive pin. The door panel is provided with a drive mechanism for driving the front slide plate to move laterally. The drive mechanism for driving the front slide plate to move laterally includes a fork that is rotatably mounted on the back of the door panel and driven to rotate by a key or handle. The other end of the fork is hinged to a waist-shaped hole on the front slide plate via a drive pin. Looking at the existing safe door lock structures, the slide plate, lock, and drive mechanism are all directly and scattered on the door panel. Because the door panel is large and heavy, it is quite complicated to assemble and process the slide plate, lock, drive mechanism, and other components directly on the door panel. Furthermore, the existing fork transmission method requires the fork to be placed on the side of the front slide plate, which results in a loose latch structure that is unsuitable for small safe deposit boxes. In addition, the fork transmission has poor smoothness, is prone to jamming, and requires considerable effort to transmit.

[0004] In conclusion, the existing door lock structure is not suitable for small safe deposit boxes. Summary of the Invention

[0005] The technical problem to be solved by this utility model is to provide an integrated door lock structure for a small safe that integrates a skateboard, lock, and drive structure, without any of them being directly mounted on the door, in light of the above-mentioned existing technology.

[0006] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: an integrated door lock structure for a small safe deposit box, including a sliding plate with a latch on the right end, a lock and a sliding plate drive structure, characterized in that: it also includes a cover for fixing to the back of the box door, the cover has an open mounting cavity at the lower end, the sliding plate is constrained in the inner bottom surface of the cover and can move left and right, the right side wall of the cover has a through hole for the latch to pass through, and the lock and drive structure are both installed on the inner bottom surface of the cover.

[0007] As a further improvement, a circuit board is mounted on the inner bottom surface of the cover, and a recessed battery compartment is provided on the outer end face of the cover. This essentially allows the entire door lock structure of the safe to be assembled onto the cover.

[0008] To better constrain the slide plate within the mounting cavity of the cover, the upper and lower ends of the slide plate are provided with outwardly protruding guide ribs arranged in the left-right direction. The bottom surface of the cover is provided with outwardly extending support ribs, on which the slide plate rests. The bottom surface of the cover is also provided with vertically spaced retaining ribs, which are positioned outside the guide ribs. This rib-groove fit ensures the slide plate is more stably constrained within the cover and can only slide left-right.

[0009] Further improvements include a sliding plate drive structure comprising a gear seat, a transmission gear, and a knob. The sliding plate has a left crossbeam, an upper crossbeam, and a lower crossbeam. The upper and lower crossbeams are located to the right of the left crossbeam and spaced apart vertically. The gear seat is fixed to the inner bottom surface of the cover and located between the upper and lower crossbeams. The transmission gear is mounted on the gear seat and can rotate around its own axis. The drive shaft of the knob is inserted into the transmission gear, allowing rotation of the knob to drive the transmission gear to rotate. The upper or lower crossbeam has a rack portion that meshes with the transmission gear. The transmission gear and the sliding plate form a gear and rack engagement transmission method, which has the advantage of smooth transmission. Importantly, the gear seat is relatively fixed inside the cover and located between the upper and lower crossbeams. The transmission gear is mounted on the gear seat, meaning the entire transmission structure is located inside the sliding plate. This makes the entire latching structure more compact and suitable for use in small safes.

[0010] As an improvement, the skateboard also features a right crossbeam, which connects the rear ends of the upper and lower crossbeams. The left, right, upper, and lower crossbeams form a rectangular frame structure, enhancing the overall strength of the skateboard.

[0011] To facilitate quick installation of the transmission gear onto the gear housing, the gear housing has a first mounting hole at its center, and the top surface of the transmission gear has at least two upward-extending first elastic arms. These elastic arms pass through the first mounting hole and are secured to the top of the gear housing. During installation, simply passing the first elastic arms through the first mounting hole and securing them to the top of the gear housing completes the installation of the transmission gear onto the gear housing, ensuring that the transmission gear can rotate relative to the gear housing around its own axis.

[0012] As an improvement, the drive shaft of the aforementioned knob has a flat cross-section, and the top of the drive shaft has two spaced-apart second elastic arms. The transmission gear has a second mounting hole whose shape matches the drive shaft. The drive shaft passes through the second mounting hole, and the second elastic arms are engaged with the transmission gear. This structure facilitates the installation of the knob onto the transmission gear. During installation, simply insert it upwards, and the second elastic arms will automatically engage with the transmission gear to complete the installation. Furthermore, the shape of the second mounting hole in the transmission gear matches the flat hole of the drive rod, so that rotation of the knob can drive the transmission gear to rotate.

[0013] In a further improvement, a top post with an arc-shaped bottom surface is fixed on the gear seat. The upper surface of the transmission gear has multiple recesses arranged at intervals along the circumference, and the bottom surface of the top post mates with these recesses. The mating of the bottom surface of the top post with the recesses provides a tactile feedback when the knob is rotated.

[0014] To facilitate the engagement of the sliding plate with the lock, the sliding plate is equipped with a raised locking protrusion that engages with the lock's latch. Because of this raised locking protrusion, the lock can be staggered with the plate, allowing it to be positioned behind the sliding plate without obstructing its movement. This results in a more compact overall layout, making it more suitable for small safes.

[0015] As an improvement, the outer end face of the cover is provided with multiple hooks. The hooks enable the cover to have a hanging function, allowing valuables such as necklaces or keys to be hung on the back of the case door.

[0016] Compared with the existing technology, the advantages of this utility model are: changing the conventional design of placing these components on the door panel, the sliding plate, lock and drive structure are all installed on the inner bottom surface of the cover, and the right side wall of the cover has a through hole for the latch to pass through, so that the entire door lock structure is formed as a whole and no longer installed separately. After all the components are assembled in the cover, it is only necessary to fix the cover to the back of the door of the safe. The modular installation of the entire door lock structure is more convenient. Attached Figure Description

[0017] Figure 1 is a front perspective view of an embodiment of the present utility model;

[0018] Figure 2 is a three-dimensional structural diagram of the back of an embodiment of the present invention;

[0019] Figure 3 is a front perspective view of the embodiment of this utility model after the knob is removed.

[0020] Figure 4 is a cross-sectional view along the length of the cover of this utility model embodiment;

[0021] Figure 5 is a cross-sectional view of an embodiment of the present invention along the height of the cover;

[0022] Figure 6 is an exploded perspective view of the skateboard drive structure in an embodiment of this utility model;

[0023] Figure 7 is a front view of the embodiment of this utility model used on the door;

[0024] Figure 8 is a rear view of the embodiment of this utility model used on the door. Detailed Implementation

[0025] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0026] Referring to Figures 1 to 8, a preferred embodiment of this utility model is shown.

[0027] An integrated door lock structure for a small safe includes a sliding plate 2 with a latch 4 at its right end, a lock 9, and a sliding plate drive structure. It also includes a cover 1 for fixing to the back of the safe door 10. The cover 1 has a mounting cavity Q with an open lower end, and multiple hook portions 15 are provided on the outer end face of the cover 1. The sliding plate 2 is constrained within the inner bottom surface of the cover 1 and can move left and right. A through hole 13 for the latch 4 to pass through is opened on the right side wall of the cover 1. The lock 9 and drive structure are both mounted on the inner bottom surface of the cover 1. A circuit board 7 is located on the inner bottom surface of the cover 1, and a recessed battery compartment 14 is provided on the outer end face of the cover 1.

[0028] The upper and lower ends of the slide plate 2 are provided with outwardly protruding guide ribs 22 arranged in the left and right direction. The bottom surface of the cover 1 is provided with outwardly extending support ribs 11. The slide plate 2 rests on the support ribs 11. The bottom surface of the cover 1 is also provided with vertically spaced baffle ribs 12. The baffle ribs 12 are positioned outside the guide ribs 22.

[0029] The skateboard drive structure includes a gear seat 3, a transmission gear 5, and a knob 6. The skateboard 2 has a left crossbeam 2a, an upper crossbeam 2b, a lower crossbeam 2c, and a right crossbeam 2d. The upper crossbeam 2b and the lower crossbeam 2c are located to the right of the left crossbeam 2a and are spaced apart vertically. The right crossbeam 2d connects the rear ends of the upper crossbeam 2b and the lower crossbeam 2c. The gear seat 3 fixes the inner bottom surface of the cover and is located between the upper crossbeam 2b and the lower crossbeam 2c. The transmission gear 5 is mounted on the gear seat 3 and can rotate around its own axis. The drive shaft 61 of the knob 6 is inserted into the transmission gear 5, so that the rotation of the knob 6 can drive the transmission gear 5 to rotate. The upper crossbeam 2b or the lower crossbeam 2c is provided with a rack portion 21 that meshes with the transmission gear 5.

[0030] The gear seat 3 has a first mounting hole 31 at its center. The top surface of the transmission gear 5 has at least two upwardly extending first elastic arms 51. The first elastic arms 51 pass through the first mounting hole 31 and are fastened to the top of the gear seat 3. The drive shaft 61 of the knob 6 has a flat cross-section. The top end of the drive shaft 61 has two spaced-apart second elastic arms 62. The transmission gear 5 has a second mounting hole 52 with a shape matching the drive shaft. The drive shaft 61 passes through the second mounting hole 52 and the second elastic arms 62 are fastened to the transmission gear 5.

[0031] A top post 8 with an arc-shaped bottom surface is fixed on the gear seat 3. The upper surface of the transmission gear 5 is provided with a plurality of recesses 53 arranged at intervals along the circumference. The bottom surface of the top post 8 matches the recesses 53.

[0032] The slide plate 2 has a protruding locking protrusion 23 for engaging with the latch 91 of the lock 9.

[0033] This door lock structure changes the conventional design of placing these components on the door panel. The slide plate 2, lock 9 and drive structure are all installed on the inner bottom surface of the cover 1. The right side wall of the cover 1 has a through hole 13 for the latch head 4 to pass through, so that the entire door lock structure is formed as a whole and no longer installed separately. After all the components are assembled in the cover 1, the cover 1 only needs to be fixed to the back of the door 10 of the safe, as shown in Figures 7 and 8. The modular installation of the entire door lock structure is more convenient.

[0034] Rotating knob 6 causes the transmission gear 5 to rotate in the forward or reverse direction. Because the rack portion 21 on the upper crossbeam 2b or lower crossbeam 2c meshes with the transmission gear 5, it causes the slide plate 2 to slide left and right. The gear and rack transmission method has the advantage of smooth transmission. Since the gear seat 3 is fixed inside the cover 1 and located between the upper crossbeam 2b and the lower crossbeam 2c, and the transmission gear 5 is installed on the gear seat 3, it can be understood that the entire transmission structure is located inside the slide plate 2. This makes the entire latching structure more compact and suitable for use in small safe deposit boxes.

[0035] It should be noted that in the description of this embodiment, the terms "front," "rear," "left," "right," "inner," "outer," "upper," and "lower," etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are merely for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model. The terms "installation," "connection," and "linking" 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 direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

Claims

1. A one-piece door lock structure for a small safe deposit box, comprising a slide plate (2) provided with a latch head (4) at a right end, a lock (9) and a slide plate driving structure, characterized in that: The cover (1) has an open mounting cavity (Q) at the lower end, the slide plate (2) is constrained in the inner bottom surface of the cover (1) and can move left and right, a through hole (13) is formed in the right side wall of the cover (1) for the latch head (4) to pass through, and the lock (9) and the driving structure are both mounted on the inner bottom surface of the cover (1).

2. The integrated door lock structure of a small safe deposit box according to claim 1, wherein: The inner bottom surface of the cover (1) is provided with a circuit board (7), and the outer end surface of the cover (1) is provided with a concave battery box (14).

3. The integrated door lock structure for a small safe deposit box according to claim 1, wherein: The upper and lower ends of the slide plate (2) are provided with outwardly protruding guide ribs (22) arranged in the left and right directions, the bottom surface of the cover (1) is provided with outwardly extending support ribs (11), the slide plate (2) is rested on the support ribs (11), and the bottom surface of the cover (1) is further provided with upper and lower spaced apart blocking ribs (12), which are arranged outside the guide ribs (22).

4. The integrated door lock structure for a small safe deposit box according to claim 3, wherein: The slide plate driving structure comprises a gear seat (3), a transmission gear (5) and a knob (6), the slide plate (2) has a left cross beam (2a), an upper cross beam (2b) and a lower cross beam (2c), the upper cross beam (2b) and the lower cross beam (2c) are arranged above and below the right side of the left cross beam (2a), the gear seat (3) is fixed to the inner bottom surface of the cover and is located between the upper cross beam (2b) and the lower cross beam (2c), the transmission gear (5) is mounted on the gear seat (3) and can rotate around its own axis, the driving shaft (61) of the knob (6) is inserted into the transmission gear (5), so that the rotation of the knob (6) can drive the transmission gear (5) to rotate, and the upper cross beam (2b) or the lower cross beam (2c) is provided with a rack portion (21) engaged with the transmission gear (5).

5. The integrated door lock structure for a small safe deposit box according to claim 4, wherein: The slide plate (2) further has a left cross beam (2d) connected between the rear ends of the upper cross beam (2b) and the lower cross beam (2c).

6. The integrated door lock structure for a small safe deposit box according to claim 4, wherein: The center of the gear seat (3) has a first mounting through hole (31), the top surface of the transmission gear (5) has at least two upwardly extending first elastic arms (51), and the first elastic arms (51) are buckled on the top of the gear seat (3) after passing through the first mounting through hole (31).

7. The integrated door lock structure for a small safe deposit box according to claim 5, wherein: The cross section of the driving shaft (61) of the knob (6) is flat, the top end of the driving shaft (61) has two spaced apart second elastic arms (62), the transmission gear (5) has a second mounting through hole (52) matching the shape of the driving shaft, the driving shaft (61) is inserted into the second mounting through hole (52), and the second elastic arms (62) are buckled on the transmission gear (5).

8. The integrated door lock structure for a small safe deposit box according to claim 4, wherein: The gear seat (3) is fixed with a top column (8) with an arc-shaped bottom surface, the upper surface of the transmission gear (5) is provided with a plurality of concave pits (53) arranged in a circumferential direction, and the bottom surface of the top column (8) is matched with the concave pits (53).

9. The integrated door lock structure for a small safe deposit box according to claim 4, wherein: The slide plate (2) is provided with a protruding locking protrusion (23) for blocking the locking tongue (91) of the lock (9).

10. The integrated door lock structure for a small safe deposit box according to claim 1, wherein: The outer end surface of the cover (1) is provided with a plurality of hook portions (15).

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