Combination lock mechanism for combination security cabinet

Abstract

The application relates to a combined locking mechanism of a combined safe cabinet, which comprises multiple safe bodies stacked from top to bottom, the top surface of the lower safe body is provided with at least three upward protruding connecting columns with T-shaped cross sections, the bottom of the upper safe body is correspondingly provided with at least three positioning holes, the positioning holes have large hole parts and small hole parts which are communicated with each other, the top surface of the lower safe body is provided with a lock column which is kept from moving upward and exposed on the top surface of the safe body by a spring, the bottom surface of the upper safe body is provided with a lock hole for inserting the lock column, and the lock column can move downward under the action of external force. In the state that the two adjacent safe bodies are spliced in place, the head of the connecting column is clamped into the small hole part of the positioning hole, and the lock column is inserted into the lock hole. The combined locking mechanism has the advantages of reasonable structure and convenient and fast locking of multiple safe bodies from top to bottom.

Description

TECHNICAL FIELD

[0001] The present application relates to a safe storage device, in particular to a combined locking mechanism of a combined safe cabinet. BACKGROUND

[0002] A safe is a special safe storage device, which is mainly divided into cabinet door type safe, drawer type safe and display type safe according to the opening mode. Different types of safes are suitable for storing different objects. Conventional safes are mostly single structures, and various safes exist independently, which leads to the need to place different types of safes separately in the room, occupying a lot of space, and the weight of a single safe is not enough, and it is easy for lawbreakers to carry it away as a whole. Of course, there are also relatively large safes, which have an opening cabinet door, and multiple drawers are arranged in the safe. Each time the drawer is taken out, the cabinet door needs to be opened, which is not convenient to use.

[0003] In view of the foregoing status, a combined safe can be obtained by combining multiple safes (cabinets), such as a Chinese utility model patent with application number CN201711110370.0 (publication number CN109779446A) discloses such a structure, which includes four safes, and the combined safe is composed of four safes, one layer of two safes at the upper part and one layer of two safes at the lower part, forming a rectangular parallelepiped. Each face between the adjacent safes above and below has at least two connecting holes for connection. One of the safes is welded with a nut at the position of the screw hole inside, and the other safe is connected with a bolt passing through the connecting hole and tightened in the nut by a wrench. The combined safe also has a base, and the two safes at the lower part are also connected with the base by bolts and nuts. Another Chinese utility model patent with application number CN201711277323.5 (publication number CN109882021A) discloses a similar structure.

[0004] The foregoing safe can fix each safe in sequence from top to bottom, but the assembly process is complex and not easy to assemble, and it is also not convenient to disassemble after assembly. In addition, the electronic parts of each safe need to be controlled independently, and effective signal connection cannot be formed between the safes, which is not convenient for unified intelligent management.

[0005] In summary, the existing combined safe can be further improved. SUMMARY

[0006] The technical problem to be solved by the present application is to provide a combined locking mechanism of a combined safe cabinet, which is reasonable in structure, can lock multiple safes together in sequence from top to bottom, and can also conveniently disassemble the safes under the premise of considering safety.

[0007] The technical scheme adopted by the present application to solve the above technical problems is: a combined locking mechanism of a combined safe cabinet, comprising a plurality of safe bodies stacked from top to bottom, among the two adjacent safe bodies, the top surface of the lower safe body is provided with at least three upwardly protruding connecting columns with a T-shaped cross section, the bottom of the upper safe body is provided with at least three positioning holes corresponding to the connecting columns, the positioning holes have a large hole part and a small hole part which are in communication with each other, the large hole part is for the head part of the connecting column to pass through, and the small hole part is for the rod part of the connecting column to pass through, the top surface of the lower safe body is provided with a lock column which is kept in a state of being exposed to the top surface of the safe body by a spring and tends to be upwardly moved, the bottom surface of the upper safe body is provided with a lock hole for the lock column to be inserted into, and the lock column can be downwardly moved under the action of an external force, in the state that the two adjacent safe bodies are spliced in place, the head part of the connecting column is clamped into the small hole part of the positioning hole, and the lock column is inserted into the lock hole.

[0008] Further improvement, the lock column is constrained at the top of the safe body and can rotate around its own axis, the top of the lock column has a guide slope which tends to be exposed to the top surface of the safe body under the action of the spring, the top surface inside the safe body is provided with an operation knob connected with the lock column, and rotating the operation knob can drive the lock column to rotate around its own axis so that the guide slope faces forward or backward. This structure can realize semi-automatic locking and unlocking, and the unlocking operation is more convenient, when the locking is to be released and the upper safe body is to be disassembled, only the operation knob needs to be rotated to make the guide slope face backward, so that when the upper safe body moves backward, the lock column will automatically move downward and shrink under the pushing of the side wall of the lock hole against the elastic force of the spring, at this time, the upper safe body can move forward relative to the lower safe body until the head part of the connecting column moves to the position of the large hole part of the positioning hole, and then the upper safe body can be removed. The unlocking operation does not need external force to always pull downward to keep the lock column in a shrinking trend, and the unlocking operation is more convenient.

[0009] As an improvement, the bottom surface of the upper safe body is fixed with a plurality of pads, and the positioning holes are arranged on the bottom surface of the pads. The pads are a separate part, which facilitates the arrangement of the positioning holes and the replacement and installation, and in addition, the top surface and the bottom surface of the two adjacent safe bodies do not directly contact each other, so that the upper safe body is easier to push. In addition, the pad of the lowermost safe body is used as a supporting leg.

[0010] As preferred, the top edge of the lower safe body has an upwardly turned upper rim, and the bottom edge of the upper safe body has a downwardly turned lower rim, which are fitted together to hide the spacer and connecting post in the mutual stacking state of the safe bodies. The rims are provided to hide the spacer and connecting post therein, which is more beautiful in appearance and will not leave gaps, and also serves to protect the male and female terminal connectors from being exposed too much upwardly.

[0011] Alternatively, the safe body is a cabinet door type safe or a drawer type safe or a display type safe. The safe bodies can be combined in any form, and assembled according to the customer's requirements, which is more flexible, such as a plurality of drawer type safes combined or a cabinet door type safe and a drawer type safe combined to form a bedside cabinet, or three types combined to form a multifunctional safety cabinet.

[0012] As preferred, the head of the connecting post has a conical outer surface. The conical surface has a guiding effect, and even if the connecting post is slightly misaligned, it will be guided by the conical surface to slide into the large hole of the lock hole.

[0013] Due to the thickness error of the top plate of the safe body caused by processing, if the connecting post is fixed to the top surface of the safe body, the distance between the head of the connecting post and the top surface of the safe body is constant, and the bottom plate of the safe body may be too loose or too tight to be pressed into the distance between the head of the connecting post and the top surface of the safe body. To solve this problem, as an improvement, a connecting screw is provided to pass through the connecting post and the top surface of the safe body, the connecting post can axially move relative to the connecting screw, and a compression spring is provided on the connecting screw to apply a downward pressure to the connecting post to keep the connecting post pressed against the top surface of the safe body. The connecting post is installed floatingly, and the compression spring applies a downward pressure to the connecting post, which can ensure that each connecting post can press the bottom plate of the safe body against the top plate of the lower safe body, eliminating the influence of the thickness error of the top plate of the safe body.

[0014] Further improvement, it also includes a male terminal and a female terminal, the male terminal is fixed on the bottom surface of the safe body and protrudes downward, the female terminal is fixed on the top surface of the safe body and protrudes upward, in the state that the two adjacent safe bodies are spliced in place, the male terminal and the female terminal are inserted into each other. The setting of the male terminal and the female terminal can realize the electrical connection and the communication connection of the control parts of the two adjacent safe bodies, so that each safe body is controlled by a main control part, without setting the main control part on each safe body, reducing the cost, and in use, only the main control part needs to be set on one of the safe bodies, and the other safe bodies are automatically connected with the main control part after splicing to form the electrical connection and the communication connection, and the structure design is very reasonable.

[0015] Further improvement, the above-mentioned lock post is arranged in the shell of the female terminal, the middle part of the lock post has an annular shoulder, the spring is supported below the annular shoulder, and the annular shoulder is in position cooperation with the inner top surface of the shell of the female terminal. The lock post can be prearranged in the shell of the female terminal, and then the shell of the female terminal is fixed on the safe body, without the need to find an additional place to arrange the lock post.

[0016] Further improvement, the above-mentioned lock hole penetrates the shell of the male terminal. In this way, the depth of the lock hole can be increased to ensure more reliable locking.

[0017] Further improvement, the shell of the male terminal and the top surface of the safe body are provided with a lower emergency key hole, the shell of the female terminal and the bottom surface of the safe body are provided with an upper emergency key hole, and in the state that the two adjacent safe bodies are spliced in place, the lower emergency key hole and the upper emergency key hole are aligned and communicated. The locking structure is additionally provided with an emergency key hole, which ensures emergency opening, and the emergency opening position of the previous safe body is arranged in the inside of the next safe body, so that only the next safe body can be opened to realize emergency opening, and the emergency opening is safer. When the emergency key is inserted from the lower emergency key hole, it enters the inside of the previous safe body through the upper emergency key hole, and is connected with the lock piece to drive the lock piece to rotate and release the locking.

[0018] Compared with the prior art, the advantages of the present application are that: the two adjacent safe bodies are matched with the positioning hole in the shape of 8 through the T-shaped connecting column, which ensures the accurate assembly position of the two adjacent safe bodies, after the bottom surface of the safe body is placed on the top surface of the safe body below, the safe body above will press the lock column inwards, in the state that the two adjacent safe bodies are spliced in place, the head of the connecting column is clamped into the small hole part of the positioning hole, so that the two safe bodies are locked in the height direction, at this time, the lock column is aligned with the lock hole, and the lock column is clamped into the lock hole under the action of the spring, so that the two safe bodies are locked in the front-back direction, so as to complete the locking assembly. When unlocking, the lock column needs to be operated inside the safe body below, so that the lock column moves downwards, the safe body above can move forwards relative to the safe body below, until the head of the connecting column moves to the position of the large hole part of the positioning hole, and then the safe body above can be taken off, and only after the safe body below is opened, the unlocking operation can be performed, so that the unlocking operation is convenient and safer. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a schematic view of the three-dimensional structure of the embodiment of the present application Figure 1 ;

[0020] Figure 2 is a schematic view of the three-dimensional structure of the embodiment of the present application Figure 2 ;

[0021] Figure 3 is a sectional view of the lock column position of the embodiment of the present application (spliced in place and locked position);

[0022] Figure 4 is a sectional view of the connecting head position of the embodiment of the present application (spliced in place and locked position);

[0023] Figure 5 is a sectional view of the lock column position of the embodiment of the present application (the lock column is rotated to the position that the guide slope faces backwards);

[0024] Figure 6 is a sectional view of the lock column position of the embodiment of the present application (disengaged from the locked position);

[0025] Figure 7 is a sectional view of the connecting head position of the embodiment of the present application (disengaged from the locked position);

[0026] Figure 8 is a schematic view of the three-dimensional structure of the safe body after separation of the embodiment of the present application. DETAILED DESCRIPTION

[0027] The present application will be further described in detail below with reference to the embodiments of the drawings.

[0028] As Figures 1-8The figure shows a preferred embodiment of the present application.

[0029] A combined locking mechanism of a combined safe cabinet, comprising a plurality of safe bodies 1 stacked from top to bottom, which are cabinet door type safes or drawer type safes or display type safes. The selection can be made according to the needs. In this embodiment, two drawer type safes are taken as examples of the safe bodies 1.

[0030] Among the two adjacent safe bodies 1, the top surface of the lower safe body 1 is provided with four upwardly protruding connecting columns 2 with T-shaped cross section, which are distributed at the four corners of the top surface. The head part 21 of the connecting column 2 has a conical outer surface. A connecting screw 13 passes through the connecting column 2 and is connected to the top surface of the safe body 1. The connecting column 2 can axially move relative to the connecting screw 13. A compression spring 14 is sleeved on the connecting screw 13. The compression spring 14 acts on the connecting column 2 to keep the connecting column 2 in a state of pressing the top surface of the safe body 1. The connecting screw 13 is preferably a stepped screw.

[0031] The bottom surface of the upper safe body 1 is provided with at least three positioning holes 3, which have a large hole part 31 and a small hole part 32 that are in communication with each other. The large hole part 31 is for the head part 21 of the connecting column 2 to pass through, and the small hole part 32 is for the rod part 22 of the connecting column 2 to pass through. The top surface of the lower safe body 1 is provided with a lock column 5, which is held in an upward position by a spring 4 to expose the top surface of the safe body 1. The bottom surface of the upper safe body 1 is provided with a lock hole 6 for the lock column 5 to insert into. The lock column 5 can move downward under the action of external force. In the state that the two adjacent safe bodies 1 are properly connected, the head part 21 of the connecting column 2 is clamped into the small hole part 32 of the positioning hole 3, and the lock column 5 is inserted into the lock hole 6.

[0032] The lock column 5 is constrained on the top of the safe body 1 and can rotate around its own axis. The top of the lock column 5 has a guide inclined surface 51, which keeps exposing the top surface of the safe body 1 under the action of the spring 4. The top surface inside the safe body 1 is provided with an operation knob 52 connected to the lock column 5. Rotating the operation knob 52 can drive the lock column 5 to rotate around its own axis, so that the guide inclined surface 51 faces forward or backward.

[0033] The bottom surface of the upper safe body 1 is fixed with a plurality of pads 7, which are fixed on the bottom surface of the safe body 1 by screws. The positioning holes 3 are arranged on the bottom surface of the pads 7. The top surface of the lower safe body 1 has an upwardly turned upper surrounding edge 12, and the bottom surface of the upper safe body 1 has a downwardly turned lower surrounding edge 11. In the state that the safe bodies 1 are stacked on each other, the upper surrounding edge 12 and the lower surrounding edge 11 are matched with each other to hide the pads 7 and the connecting columns 2 inside.

[0034] It also includes a male terminal 8 and a female terminal 9. The male terminal 8 is fixed to the bottom surface of the safe body 1 and protrudes downward, and the female terminal 9 is fixed to the top surface of the safe body 1 and protrudes upward. When two adjacent safe bodies 1 are spliced ​​in place, the male terminal 8 and the female terminal 9 are plugged into each other.

[0035] The locking post 5 is disposed within the housing of the female terminal 9. An annular shoulder 53 is formed in the middle of the locking post 5. The spring 4 is supported below the annular shoulder. The annular shoulder 53 engages with the top surface of the housing of the female terminal 9. A locking hole 6 extends through the housing of the male terminal 8.

[0036] A lower emergency key through-hole 10a is provided on the housing of the male terminal 8 and the top surface of the safe body 1, and an upper emergency key through-hole 10b is provided on the housing of the female terminal 9 and the bottom surface of the safe body 1. When two adjacent safe bodies 1 are spliced ​​in place, the lower emergency key through-hole 10a and the upper emergency key through-hole 10b are aligned and connected.

[0037] The working principle and process of the present invention are as follows.

[0038] Splicing process: Figures 1-4 As shown, turning the operating knob 52 causes the lock cylinder 5 to rotate about its own axis, so that the guide slope 51 is set forward, placing the upper safe body 1 on the top surface of the lower safe body. The head 21 of the connecting cylinder 2 is inserted through the large hole 31 of the positioning hole 3. The upper safe body 1 presses the lock cylinder 5 downward and inward, pushing the upper safe body 1 backward until the two adjacent safe bodies 1 are spliced ​​into place. At this time, the head 221 of the connecting cylinder 2 is engaged with the small hole 32 of the positioning hole 3, so that the two safe bodies 1 are locked in the vertical direction. At this time, the lock cylinder 5 is aligned with the lock hole 6. Under the action of the spring 4, the lock cylinder 5 moves upward and engages the lock hole 6, so that the two safe bodies 1 are locked in the front-to-back direction, thus completing the locking assembly. At the same time, the male terminal 8 and the female terminal 9 are plugged into each other, and the control parts of the two adjacent safe bodies 1 are electrically and communicatively connected.

[0039] Unlocking process: Figures 5-8 As shown, turning the operating knob 52 causes the lock cylinder 5 to rotate about its own axis, causing the guide bevel 51 to face rearward, thereby moving the upper safe body 1 forward. As the upper safe body 1 moves forward, the guide bevel 51, pushed by the sidewall of the lock hole 6, automatically causes the lock cylinder 5 to move downward and inward, overcoming the elastic force of the spring 4. The upper safe body 1 can then move forward relative to the lower safe body 1 until the head 21 of the connecting column 2 moves to the position of the large hole portion 31 of the positioning hole 3. At this point, the upper safe body 1 can be removed. This unlocking operation does not require external force to constantly pull down the lock cylinder to maintain its inward trend, making the unlocking operation more convenient.

[0040] It should be noted that in the description of this embodiment, the terms "front, back", "left, right", "inside, outside", "up, down", etc. indicating directions or positional relationships are all based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention. The terms "install", "connect", and "connected" should be understood in a broad sense. For example, they can be fixedly connected, detachably connected, or integrally connected; they can be directly connected, or indirectly connected through an intermediate medium, or they can be internal connections between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A combined locking mechanism for a combined safety cabinet, comprising a plurality of safe bodies (1) stacked in sequence from top to bottom, characterized in that: In two adjacent safe bodies (1), the top surface of the safe body (1) located at the bottom is provided with at least three upwardly protruding connecting columns (2) with a T-shaped cross section, and the bottom of the safe body (1) located at the top is correspondingly provided with at least three positioning holes (3), and the positioning holes (3) have a large hole portion (31) and a small hole portion (32) that are connected to each other, the large hole portion (31) is for the head portion (21) of the connecting column (2) to pass through, and the small hole portion (32) is for the rod portion (22) of the connecting column (2) to pass through, and the safe body (1) located at the bottom is provided with at least three positioning holes (3). The top surface of the safe body (1) is provided with a lock column (5), and the lock column (5) is held by a spring (4) to move upward to reveal the top surface of the safe body (1). The bottom surface of the safe body (1) located above is provided with a lock hole (6) for inserting the lock column (5). The lock column (5) can move downward under the action of an external force. When two adjacent safe bodies (1) are spliced ​​in place, the head (21) of the connecting column (2) is inserted into the small hole (32) of the positioning hole (3), and the lock column (5) is inserted into the lock hole (6).

2. The combined locking mechanism of the combined safety cabinet according to claim 1, characterized in that: The lock column (5) is constrained at the top of the safe body (1) and can rotate around its own axis. The top of the lock column (5) is provided with a guiding inclined surface (51). Under the action of a spring (4), the guiding inclined surface (51) maintains a tendency to expose the top surface of the safe body (1). The top surface inside the safe body (1) is provided with an operating knob (52) connected to the lock column (5). Turning the operating knob (52) can drive the lock column (5) to rotate around its own axis, so that the guiding inclined surface (51) faces forward or backward.

3. The combined locking mechanism of the combined safety cabinet according to claim 2, characterized in that: A plurality of cushion blocks (7) are fixed to the bottom surface of the safe body (1) located above, and the positioning holes (3) are arranged on the bottom surfaces of the cushion blocks (7).

4. The combined locking mechanism of the combined safety cabinet according to claim 3, characterized in that: The top peripheral edge of the safe body (1) located at the bottom has an upper peripheral edge (12) that is turned up, and the bottom peripheral edge of the safe body (1) located at the top has a lower peripheral edge (11) that is turned down. When the safe bodies (1) are stacked on each other, the upper peripheral edge (12) and the lower peripheral edge (11) are combined with each other to hide the cushion block (7) and the connecting column (2) therein.

5. The combined locking mechanism of the combined safety cabinet according to claim 1, characterized in that: The safe body (1) is a cabinet door type safe, a drawer type safe, or a display type safe.

6. The combined locking mechanism of the combined safety cabinet according to any one of claims 1 to 5, characterized in that: The invention also includes a male terminal (8) and a female terminal (9), wherein the male terminal (8) is fixed on the bottom surface of the safe body (1) and protrudes downward, and the female terminal (9) is fixed on the top surface of the safe body (1) and protrudes upward. When two adjacent safe bodies (1) are spliced ​​in place, the male terminal (8) and the female terminal (9) are plugged into each other.

7. The combined locking mechanism of the combined safety cabinet according to claim 6, characterized in that: The locking column (5) is arranged in the housing of the female terminal (9), and the middle part of the locking column (5) has an annular shoulder (53). The spring (4) is supported below the annular shoulder, and the annular shoulder (53) is matched with the top surface of the housing of the female terminal (9).

8. The combined locking mechanism of the combined safety cabinet according to claim 6, characterized in that: The lock hole (6) passes through the housing of the male terminal (8).

9. The combined locking mechanism of the combined safety cabinet according to claim 6, characterized in that: A lower emergency key through-hole (10a) is provided on the outer shell of the male terminal (8) and the top surface of the safe body (1), and an upper emergency key through-hole (10b) is provided on the outer shell of the female terminal (9) and the bottom surface of the safe body (1). When two adjacent safe bodies (1) are spliced ​​in place, the lower emergency key through-hole (10a) and the upper emergency key through-hole (10b) are aligned and connected.

Images