Intelligent key cabinet based on RFID

Abstract

The invention provides an intelligent key cabinet based on RFID, and relates to the technical field of key cabinets. The intelligent key cabinet based on the RFID comprises a main cabinet body and an auxiliary cabinet body, a built-in partition plate is fixedly connected to the interior of the main cabinet body, a plurality of key insertion plates are fixedly installed on the side wall of the built-in partition plate, the key insertion plates are arranged in a rectangular array, and a key storage box is fixedly connected to the rear sides of the key insertion plates. According to the key pushing device, a first driving air cylinder is started, the piston end of the first driving air cylinder drives a limiting insertion rod to move downwards, the limiting insertion rod does not limit a key any more, then a second driving air cylinder is started, the piston end of the second driving air cylinder drives a horizontal ejection rod to move towards the interior of an ejection through hole, and the key in a key storage box is ejected out; when the key is taken out, the key falls on the falling inclined plate, the key is taken out through the key taking hole door, taking is convenient, the safety cabinet door does not need to be opened, and the situation that the key is lost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of key cabinets, in particular to an intelligent key cabinet based on RFID. Background Art

[0002] The traditional key cabinet access method is to use a mechanical lock to close the cabinet door, attach different numbered labels to the keys, hang each key on the corresponding hook, and manually take the key by opening the cabinet door when the key is needed. When returning the key, it is hung on the empty hook at will. This key access method is only suitable for scenarios with a small number of keys and low frequency of key use. When the frequency of key use is very high and the number of keys is hundreds, this storage method will seriously affect the efficiency of key retrieval. In addition, sometimes keys are forgotten to be returned after being taken. Traditional key cabinets cannot trace the flow of keys, which makes it easy for keys to be lost.

[0003] Patent publication number CN212391852U, the utility model discloses an RFID-based smart key cabinet, including a main cabinet and a sub-cabinet, the main cabinet is equipped with an industrial control host and a reader; the sub-cabinet includes a cabinet body and a cabinet door, the cabinet door is provided with a safety door, an RFID card reader is provided under the safety door, a long hook is provided on the safety door facing the inside of the cabinet, and an electromagnetic lock is provided on the safety door; a plurality of key hooks are provided in the cabinet body, and keys carrying RFID information are hung on the key hooks; a key retrieval mechanism is provided in the cabinet body, and the utility model has the advantages of high key retrieval efficiency and keys are not easily lost.

[0004] However, in the above patent, whether taking out the key or storing the key, the security door needs to be opened, and the key is simply hung in the cabinet, lacking an effective protection mechanism, and there is a possibility of key loss. Summary of the invention

[0005] 1. Technical issues to be resolved In view of the deficiencies in the prior art, the present invention provides an RFID-based smart key cabinet, which solves the problem in the prior art that the security door needs to be opened whether to take out or store keys, and the keys are simply hung in the cabinet, lacking an effective protection mechanism, and there is a problem of key loss.

[0006] (II) Technical solution To achieve the above objectives, the present invention is implemented through the following technical solutions: an RFID-based smart key cabinet, comprising a main cabinet and a sub-cabinet, wherein a built-in partition plate is fixedly connected inside the main cabinet, a plurality of key plugging plates are fixedly installed on the side wall of the built-in partition plate, and the plurality of key plugging plates are arranged in a rectangular array, a key storage box is fixedly connected to the rear side of the key plugging plate, a key slot is penetrated through the side wall of the key plugging plate, the key slot is connected to the key storage box, an ejection through hole is penetrated through the side of the key storage box away from the key plugging plate, a limiting assembly is arranged on the rear side of the key plugging plate, a first guide rod is fixedly connected inside the main cabinet and located at the rear side of the built-in partition plate, a first movable plate is slidably connected to the outer surface of the first guide rod, a first power assembly for driving the first movable plate to rise and fall is installed inside the main cabinet, a second guide rod is fixedly connected to the side wall of the first movable plate, a second movable plate is slidably connected to the outer surface of the second guide rod, a second power assembly for driving the second movable plate to move is installed on the side wall of the first movable plate, and an ejection assembly is installed on the upper surface of the second movable plate.

[0007] Preferably, the limiting assembly includes an installation and connection vertical plate fixedly connected to the rear side of the key insertion plate, a first driving cylinder is fixedly connected to the side wall of the installation and connection vertical plate, a piston end of the first driving cylinder is fixedly connected to a limiting rod, an end of the limiting rod away from the first driving cylinder passes through the key storage box, the first driving cylinder is started, the piston end of the first driving cylinder moves upward with the limiting rod, so that the limiting rod is inserted into the interior of the key storage box, the limiting rod limits the key, and the key cannot be pulled out.

[0008] Preferably, the first power assembly includes a first servo motor fixedly connected to the inside of the main cabinet, the output shaft of the first servo motor is fixedly connected to a first threaded rod, one end of the first threaded rod away from the first servo motor is rotatably connected to the inner top of the main cabinet, the first movable plate is threadedly connected to the outer surface of the first threaded rod, the first servo motor is started, and the output shaft of the first servo motor drives the first threaded rod to rotate, so that the first movable plate can move on the outer surface of the first threaded rod and can move up and down with the second movable plate, the second movable plate drives the second driving cylinder to move up and down, and the second driving cylinder drives the horizontal ejection rod to move up and down.

[0009] Preferably, the second power assembly includes a second servo motor fixedly connected to the side wall of the first movable plate, the output shaft of the second servo motor is fixedly connected to a second threaded rod, the end of the second threaded rod away from the second servo motor is rotatably connected to the inner wall of the main cabinet, the second movable plate is threadedly connected to the outer surface of the second threaded rod, and the second servo motor is started, and the output shaft of the second servo motor drives the second threaded rod to rotate, so that the second movable plate can move left and right on the outer surface of the second threaded rod, the second movable plate drives the second driving cylinder to move left and right, and the second driving cylinder drives the horizontal ejection rod to move left and right.

[0010] Preferably, the ejection assembly includes a vertical mounting plate body fixedly connected to the upper surface of the second movable plate, a second driving cylinder is fixedly connected to the side wall of the vertical mounting plate body, a horizontal ejection rod is fixedly connected to the piston end of the second driving cylinder, and the horizontal ejection rod is adapted to the ejection through-hole. When the second driving cylinder is started, the piston end of the second driving cylinder moves the horizontal ejection rod toward the inside of the ejection through-hole to eject the key in the key storage box, and the key falls onto the blanking inclined plate.

[0011] Preferably, an industrial control host is arranged inside the sub-cabinet, a touch screen and an RFID card reader 1 are arranged on the front side of the sub-cabinet, a plurality of RFID card readers 2 are fixedly installed on the front side of the built-in partition plate, and the plurality of RFID card readers 2 correspond one-to-one to a plurality of key plug plates.

[0012] Preferably, a safety cabinet door is movably connected to the front side of the main cabinet, an electromagnetic lock 1 is arranged between the safety cabinet door and the main cabinet, a key retrieval hole door is movably connected to the bottom of the safety cabinet door, an electromagnetic lock 2 is arranged between the key retrieval hole door and the safety cabinet door, and a blanking inclined plate is fixedly installed inside the main cabinet, the blanking inclined plate is located on the front side of the built-in partition plate and corresponds to the key retrieval hole door.

[0013] Preferably, a rear cabinet door 1 is movably installed on the rear side of the main cabinet, and a mechanical lock 1 is arranged between the rear cabinet door 1 and the main cabinet. A rear cabinet door 2 is movably installed on the rear side of the sub-cabinet, and a mechanical lock 2 is arranged between the rear cabinet door 2 and the main cabinet. The rear cabinet door 1 and the rear cabinet door 2 can be opened by setting the mechanical lock 1 and the mechanical lock 2, so as to facilitate the maintenance of the equipment inside the main cabinet and the sub-cabinet.

[0014] (III) Beneficial effects The present invention provides an intelligent key cabinet based on RFID, which has the following beneficial effects: 1. The present invention starts the first servo motor, the second moving plate moves up and down with the second driving cylinder, the second driving cylinder moves up and down with the horizontal ejector rod, starts the second servo motor, the second moving plate moves left and right with the second driving cylinder, the second driving cylinder moves left and right with the horizontal ejector rod, so that the horizontal ejector rod moves to the rear of the corresponding key storage box; starts the first driving cylinder, the piston end of the first driving cylinder moves downward with the limit rod, the limit rod no longer limits the key, and then starts the second driving cylinder, the piston end of the second driving cylinder moves the horizontal ejector rod to the inside of the ejection through hole, the key in the key storage box is ejected, the key falls to the blanking inclined plate, and the key is taken out through the key taking hole, which is convenient to take, and there is no need to open the safety cabinet door, thereby reducing the situation of key loss.

[0015] 2. In the present invention, when storing a key, the staff swipes the card at RFID reader 1. After the card swiping is successful, the staff selects to store the key on the touch screen, and then the safety cabinet door is opened. The staff inserts the key into the corresponding key storage box according to the key number, and then swipes the card at the corresponding RFID reader 2 position. After the card swiping is completed, the first driving cylinder is started, and the piston end of the first driving cylinder moves upward with the limiting rod, so that the limiting rod is inserted into the interior of the key storage box. The limiting rod limits the key, and the key cannot be pulled out, thereby improving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the three-dimensional structure of an RFID-based smart key cabinet provided by the present invention from a first perspective; Figure 2 A schematic diagram of the third perspective structure of an RFID-based smart key cabinet provided by the present invention; Figure 3 A schematic diagram of the internal structure of the main cabinet of an RFID-based smart key cabinet provided by the present invention; Figure 4 A schematic diagram of the inner structure of a built-in partition plate of an RFID-based smart key cabinet provided by the present invention; Figure 5 A schematic diagram of the structure of a first guide rod of an RFID-based smart key cabinet provided by the present invention; Figure 6 A cross-sectional view of a key storage box of an RFID-based smart key cabinet provided by the present invention; Figure 7 The present invention provides a RFID-based smart key cabinet Figure 3 The enlarged structural diagram at A in the middle; Figure 8 The present invention provides a RFID-based smart key cabinet Figure 4Enlarged structural diagram at B in the middle.

[0017] Among them, 1. main cabinet; 2. auxiliary cabinet; 3. touch screen; 4. RFID card reader 1; 5. safety cabinet door; 6. key retrieval hole; 7. built-in partition plate; 8. blanking inclined plate; 9. rear cabinet door 1; 10. rear cabinet door 2; 11. RFID card reader 2; 12. key plug plate; 13. key storage box; 14. key slot; 15. ejection hole; 16. installation and connection vertical plate; 17. first driving cylinder; 18. limit plug rod; 19. first guide rod; 20. first moving plate; 21. first servo motor; 22. first threaded rod; 23. second guide rod; 24. second moving plate; 25. second servo motor; 26. second threaded rod; 27. vertical installation plate; 28. second driving cylinder; 29. ​​horizontal ejector rod. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] Example: like Figure 1-Figure 8As shown, an embodiment of the present invention provides an RFID-based smart key cabinet, including a main cabinet 1 and a sub-cabinet 2, the main cabinet 1 is fixedly connected to a built-in partition plate 7, a plurality of key plug-ins 12 are fixedly installed on the side wall of the built-in partition plate 7, the plurality of key plug-ins 12 are arranged in a rectangular array, a key storage box 13 is fixedly connected to the rear side of the key plug-in plate 12, a key slot 14 is penetrated through the side wall of the key plug-in plate 12, the key slot 14 is connected to the key storage box 13, a side of the key storage box 13 away from the key plug-in plate 12 is penetrated with an ejection through hole 15, an industrial control host is arranged in the sub-cabinet 2, a touch screen 3 and an RFID reader 4 are arranged on the front side of the sub-cabinet 2, a plurality of RFID readers 11 are fixedly installed on the front side of the built-in partition plate 7, and the plurality of RFID readers 11 and the plurality of key plug-ins are connected. 12 correspond one to one, a safety cabinet door 5 is movably connected to the front side of the main cabinet 1, an electromagnetic lock 1 is arranged between the safety cabinet door 5 and the main cabinet 1, a key retrieval hole door 6 is movably connected to the bottom of the safety cabinet door 5, and an electromagnetic lock 2 is arranged between the key retrieval hole door 6 and the safety cabinet door 5, a blanking inclined plate 8 is fixedly installed inside the main cabinet 1, the blanking inclined plate 8 is located on the front side of the built-in partition plate 7 and corresponds to the key retrieval hole door 6, a rear cabinet door 1 9 is movably installed on the rear side of the main cabinet 1, and a mechanical lock 1 is arranged between the rear cabinet door 1 9 and the main cabinet 1, a rear cabinet door 2 10 is movably installed on the rear side of the auxiliary cabinet 2, and a mechanical lock 2 is arranged between the rear cabinet door 2 10 and the main cabinet 1, and the rear cabinet door 1 9 and the rear cabinet door 2 10 can be opened by setting the mechanical lock 1 and the mechanical lock 2, so as to facilitate the maintenance of the equipment inside the main cabinet 1 and the auxiliary cabinet 2; A limit assembly is provided at the rear side of the key plug plate 12, and the limit assembly includes an installation connection vertical plate 16 fixedly connected to the rear side of the key plug plate 12, and a first driving cylinder 17 is fixedly connected to the side wall of the installation connection vertical plate 16, and a piston end of the first driving cylinder 17 is fixedly connected to a limit rod 18, and the end of the limit rod 18 away from the first driving cylinder 17 passes through the key storage box 13, and the safe cabinet door 5 is opened. The staff inserts the key into the corresponding key storage box 13 according to the key number, and then swipes the card at the corresponding RFID card reader 2 11 position. After the card swiping is completed, the first driving cylinder 17 is started, and the piston end of the first driving cylinder 17 moves upward with the limit rod 18, so that the limit rod 18 is inserted into the interior of the key storage box 13, and the limit rod 18 limits the key, and the key cannot be pulled out; A first guide rod 19 is fixedly connected to the interior of the main cabinet 1 and located at the rear side of the built-in partition plate 7, and a first movable plate 20 is slidably connected to the outer surface of the first guide rod 19. A first power assembly that drives the first movable plate 20 to rise and fall is installed inside the main cabinet 1. The first power assembly includes a first servo motor 21 fixedly connected to the interior of the main cabinet 1, and an output shaft of the first servo motor 21 is fixedly connected to a first threaded rod 22. One end of the first threaded rod 22 away from the first servo motor 21 is rotatably connected to the inner top of the main cabinet 1. The first movable plate 20 is threadedly connected to the outer surface of the first threaded rod 22. When the first servo motor 21 is started, the output shaft of the first servo motor 21 rotates with the first threaded rod 22, so that the first movable plate 20 can move on the outer surface of the first threaded rod 22 and can move up and down with the second movable plate 24. The second movable plate 24 moves up and down with the second driving cylinder 28, and the second driving cylinder 28 moves up and down with the horizontal ejector rod 29; A second guide rod 23 is fixedly connected to the side wall of the first movable plate 20, and a second movable plate 24 is slidably connected to the outer surface of the second guide rod 23. A second power assembly that drives the second movable plate 24 to move is installed on the side wall of the first movable plate 20. The second power assembly includes a second servo motor 25 fixedly connected to the side wall of the first movable plate 20, and an output shaft of the second servo motor 25 is fixedly connected to a second threaded rod 26. One end of the second threaded rod 26 away from the second servo motor 25 is rotatably connected to the inner side wall of the main cabinet 1. The second movable plate 24 is threadedly connected to the outer surface of the second threaded rod 26. When the second servo motor 25 is started, the output shaft of the second servo motor 25 rotates with the second threaded rod 26, so that the second movable plate 24 can move left and right on the outer surface of the second threaded rod 26, and the second movable plate 24 moves left and right with the second driving cylinder 28, and the second driving cylinder 28 moves left and right with the horizontal ejection rod 29; An ejection assembly is installed on the upper surface of the second movable plate 24, and the ejection assembly includes a vertical mounting plate body 27 fixedly connected to the upper surface of the second movable plate 24, and a second driving cylinder 28 is fixedly connected to the side wall of the vertical mounting plate body 27, and a horizontal ejection rod 29 is fixedly connected to the piston end of the second driving cylinder 28, and the horizontal ejection rod 29 is adapted to the ejection through hole 15. The first driving cylinder 17 is started, and the piston end of the first driving cylinder 17 moves downward with the limiting plug 18, so that the limiting plug 18 is disengaged from the inside of the key storage box 13. At this time, the limiting plug 18 no longer limits the key, and then the second driving cylinder 28 is started again, and the piston end of the second driving cylinder 28 moves with the horizontal ejection rod 29 to the inside of the ejection through hole 15, and the key in the key storage box 13 is ejected, and the key falls onto the blanking inclined plate 8.

[0020] Working principle: When taking the key, the staff swipes the card on the RFID card reader 4. After the card swiping is successful, the key number to be taken is selected on the touch screen 3. After the selection is completed, the key is automatically taken. When taking the key automatically, the first servo motor 21 is started, and the output shaft of the first servo motor 21 rotates with the first threaded rod 22, so that the first movable plate 20 can move on the outer surface of the first threaded rod 22, and can move up and down with the second movable plate 24, the second movable plate 24 moves up and down with the second driving cylinder 28, and the second driving cylinder 28 moves up and down with the horizontal ejector rod 29, and the second servo motor 25 is started, and the output shaft of the second servo motor 25 rotates with the second threaded rod 26, so that the second movable plate 24 can move left and right on the outer surface of the second threaded rod 26, the second movable plate 24 moves left and right with the second driving cylinder 28, and the second driving cylinder 28 moves up and down with the horizontal ejector rod 29. The horizontal ejector rod 29 moves left and right, so that the horizontal ejector rod 29 moves to the rear of the corresponding key storage box 13 and corresponds to the ejection through hole 15; first start the first driving cylinder 17, the piston end of the first driving cylinder 17 moves downward with the limiting plug rod 18, so that the limiting plug rod 18 is separated from the inside of the key storage box 13, at this time, the limiting plug rod 18 no longer limits the key, and then start the second driving cylinder 28, the piston end of the second driving cylinder 28 moves with the horizontal ejector rod 29 to the inside of the ejection through hole 15, the key in the key storage box 13 is ejected, and the key falls to the blanking inclined plate 8, according to the above method, all the keys that need to be taken out are ejected, and after all the keys are ejected, the electromagnetic lock 2 is opened, and the key is taken out through the key taking hole door 6, which is more convenient to take, and there is no need to open the safe door 5, which reduces the situation of key loss; When storing the key, the staff swipes the card on the RFID card reader 4. After the card swiping is successful, select "save the key" on the touch screen 3, and then the safe door 5 is opened. The staff inserts the key into the corresponding key storage box 13 according to the key number, and then swipes the card at the corresponding RFID card reader 2 11. After the card swiping is completed, the first driving cylinder 17 is started, and the piston end of the first driving cylinder 17 moves upward with the limiting rod 18, so that the limiting rod 18 is inserted into the interior of the key storage box 13. The limiting rod 18 limits the key and the key cannot be pulled out.

[0021] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprising a reference structure" do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0022] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An RFID-based smart key cabinet, comprising a main cabinet (1) and a secondary cabinet (2), characterized in that: The main cabinet (1) is fixedly connected to a built-in partition plate (7) inside, and a plurality of key insert plates (12) are fixedly mounted on the side wall of the built-in partition plate (7), and the plurality of key insert plates (12) are arranged in a rectangular array. A key storage box (13) is fixedly connected to the rear side of the key insert plate (12), and a key slot (14) is provided through the side wall of the key insert plate (12), and the key slot (14) is connected to the key storage box (13). A ejection through hole (15) is provided through the side of the key storage box (13) away from the key insert plate (12), and a limit assembly is provided on the rear side of the key insert plate (12). ) is fixedly connected to a first guide rod (19) inside and at the rear side of the built-in partition plate (7); a first movable plate (20) is slidably connected to the outer surface of the first guide rod (19); a first power assembly for driving the first movable plate (20) to rise and fall is installed inside the main cabinet (1); a second guide rod (23) is fixedly connected to the side wall of the first movable plate (20); a second movable plate (24) is slidably connected to the outer surface of the second guide rod (23); a second power assembly for driving the second movable plate (24) to move is installed on the side wall of the first movable plate (20); and an ejection assembly is installed on the upper surface of the second movable plate (24).

2. The RFID-based smart key cabinet according to claim 1, characterized in that: The limit assembly comprises a mounting connection vertical plate (16) fixedly connected to the rear side of the key insert plate (12); a first driving cylinder (17) is fixedly connected to the side wall of the mounting connection vertical plate (16); a piston end of the first driving cylinder (17) is fixedly connected to a limit rod (18); and an end of the limit rod (18) away from the first driving cylinder (17) passes through the key storage box (13).

3. The RFID-based smart key cabinet according to claim 1, characterized in that: The first power assembly comprises a first servo motor (21) fixedly connected to the inside of the main cabinet (1); the output shaft of the first servo motor (21) is fixedly connected to a first threaded rod (22); one end of the first threaded rod (22) away from the first servo motor (21) is rotatably connected to the inner top of the main cabinet (1); and the first movable plate (20) is threadedly connected to the outer surface of the first threaded rod (22).

4. The RFID-based smart key cabinet according to claim 1, characterized in that: The second power assembly comprises a second servo motor (25) fixedly connected to the side wall of the first movable plate (20); the output shaft of the second servo motor (25) is fixedly connected to a second threaded rod (26); one end of the second threaded rod (26) away from the second servo motor (25) is rotatably connected to the inner wall of the main cabinet (1); and the second movable plate (24) is threadedly connected to the outer surface of the second threaded rod (26).

5. The RFID-based smart key cabinet according to claim 1, characterized in that: The ejection assembly comprises a vertical mounting plate body (27) fixedly connected to the upper surface of the second movable plate (24); a second driving cylinder (28) is fixedly connected to the side wall of the vertical mounting plate body (27); a horizontal ejection rod (29) is fixedly connected to the piston end of the second driving cylinder (28); and the horizontal ejection rod (29) is adapted to the ejection through hole (15).

6. The RFID-based smart key cabinet according to claim 1, characterized in that: An industrial control host is arranged inside the sub-cabinet (2), a touch screen (3) and an RFID card reader 1 (4) are arranged on the front side of the sub-cabinet (2), a plurality of RFID card readers 2 (11) are fixedly mounted on the front side of the built-in partition plate (7), and the plurality of RFID card readers 2 (11) correspond one-to-one to the plurality of key insert plates (12).

7. The RFID-based smart key cabinet according to claim 1, characterized in that: The front side of the main cabinet (1) is movably connected to a safety cabinet door (5), a first electromagnetic lock is arranged between the safety cabinet door (5) and the main cabinet (1), the bottom of the safety cabinet door (5) is movably connected to a key access hole (6), a second electromagnetic lock is arranged between the key access hole (6) and the safety cabinet door (5), and a blanking inclined plate (8) is fixedly installed inside the main cabinet (1), the blanking inclined plate (8) is located on the front side of the built-in partition plate (7) and corresponds to the key access hole (6).

8. The RFID-based smart key cabinet according to claim 1, characterized in that: A rear cabinet door 1 (9) is movably mounted on the rear side of the main cabinet (1), and a mechanical lock 1 is arranged between the rear cabinet door 1 (9) and the main cabinet (1). A rear cabinet door 2 (10) is movably mounted on the rear side of the auxiliary cabinet (2), and a mechanical lock 2 is arranged between the rear cabinet door 2 (10) and the main cabinet (1).

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