Anti-lost certificate box and anti-lost certificate issuing device

Abstract

The utility model provides a kind of anti-lost certificate box and anti-lost certification device.The anti-lost certificate box includes box, baffle, first elastic member and plate driver.The box is used to accommodate certificate, and the side of the box is provided with certificate port.The baffle is movably arranged at the certificate port along the vertical direction, and the baffle includes first position and second position on its moving track.When the baffle is located at the first position, the baffle blocks the certificate port.When the baffle is located at the second position, the certificate port is in an open state.The first elastic member is connected to the box and the baffle, and is used to provide elastic force, so that the baffle moves from the second position to the first position.The plate driver is connected to the baffle, and is used to drive the baffle to move from the first position to the second position.The anti-lost certification device includes the above-mentioned anti-lost certificate box.The anti-lost certificate box and the anti-lost certification device of the utility model can prevent the loss of certificates and improve safety.

Description

Technical Field

[0001] This utility model relates to the field of certificate issuing device technology, and in particular to an anti-loss certificate box and an anti-loss certificate issuing device. Background Technology

[0002] With societal development, residents frequently need to use various personal identification documents in their daily lives. Commonly used documents include ID cards, residence permits, bank cards, social security cards, passports, and household registration books. After applying for a document, the document production center will manufacture it. During production, blank documents are fed one by one to the next workstation via an issuing device, allowing information to be written onto them later. Finally, the documents are collected by a receiving device. Both the issuing and receiving devices use document boxes to hold the documents. However, existing document boxes are prone to losing documents when not in use, making them insecure.

[0003] Therefore, there is a need to provide an anti-loss certificate box and an anti-loss certificate issuing device to solve the above-mentioned technical problems. Utility Model Content

[0004] This utility model provides an anti-loss certificate box and an anti-loss certificate issuing device, which can prevent the loss of certificates and improve security.

[0005] The technical solution of this utility model is as follows: A lost-proof card holder, comprising: A box for holding documents, with a document opening on one side of the box; A baffle is movably disposed at the certificate opening. The baffle has a first position and a second position on its movement trajectory. When the baffle is in the first position, the baffle blocks the certificate opening. When the baffle is in the second position, the certificate opening is in an open state. A first elastic element, connected to the housing and the baffle, provides elastic force to move the baffle from the second position to the first position; and A board driver, connected to the baffle, is used to drive the baffle to move from the first position to the second position.

[0006] The anti-loss ID card holder of this utility model further includes a limiting structure disposed inside the holder, the limiting structure comprising: A limiting member is movably configured, and the limiting member includes a third position and a fourth position on its movement trajectory; when the limiting member is located in the third position, the limiting member can limit the baffle and prevent the baffle from moving to the second position; when the limiting member is located in the fourth position, the baffle can move from the first position to the second position. A second elastic element, connected to the housing and the limiting element, provides elastic force to move the limiting element from the fourth position to the third position; and A limit driver, connected to the limit member, is used to drive the limit member to move from the third position to the fourth position.

[0007] In the anti-lost ID card box of this utility model, the baffle is movably arranged vertically, and the baffle is provided with a clearance groove; the limiting member is movably arranged at the clearance groove, and when the limiting member is in the third position, the limiting member can limit the side wall of the clearance groove in the vertical direction.

[0008] In the anti-lost ID card holder of this utility model, the limiting member includes a first arm and a second arm, which are connected in an L-shape. The connection between the first arm and the second arm is rotatably connected to the holder body. The first arm is provided with an oblong hole, the length direction of which is consistent with the length direction of the first arm. The second elastic member is connected to the first arm. When the limiting member is in the third position, the second arm can limit the side wall of the clearance groove in the vertical direction. The limiting actuator includes a connecting pin and an electromagnet; the connecting pin is movably inserted through the oblong hole; the electromagnet is connected to the connecting pin and is used to drive the connecting pin to move in a straight line, thereby driving the first arm to rotate, and then driving the limiting member to rotate from the third position to the fourth position.

[0009] In the anti-loss card box of this utility model, a step is provided in the clearance groove. When the limiting member is in the third position, the second support arm is vertically arranged, and its bottom end abuts against the step to restrict the step from moving upward.

[0010] Another technical solution of this utility model is: A device for preventing the loss of identification documents, comprising: The aforementioned anti-loss certificate box; and, The certificate pushing module is located at the bottom of the box and is used to push the certificate out from the certificate opening.

[0011] The anti-loss certificate issuing device of this utility model further includes: The fixed base, wherein the anti-loss card holder is detachably mounted on the fixed base; and, A fixing module includes a pressure block, a third elastic element, a cam, and a power motor. The pressure block is rotatably mounted on the fixing base and is used to press down on or release the anti-lost ID box. The third elastic element is connected to the fixing base and one end of the pressure block, and provides elastic force to raise the other end of the pressure block and release the anti-lost ID box. The cam is rotatably connected to the fixing base and abuts against the pressure block. The power motor is connected to the cam and drives the cam to rotate, thereby causing the pressure block to rotate so that the other end of the pressure block presses down on the anti-lost ID box.

[0012] The anti-loss certificate issuing device of this utility model further includes a conveying module, which includes: A document-carrying guide rail is laterally movable. One end of the guide rail, facing the anti-loss document locker, has a first document slot that communicates with the document opening. The other end, facing the same direction, has a second document slot that communicates with the first document slot. The two inner sidewalls of the guide rail laterally limit the movement of the document. A guide rail driver, connected to the certificate guide rail, is used to drive the certificate guide rail to move laterally.

[0013] In the anti-loss certificate issuing device of this utility model, the conveying module further includes a first detection sensor and a second detection sensor; the first detection sensor is disposed on the side of the certificate carrying guide rail near the anti-loss certificate box, and is electrically connected to the guide rail driver, and is used to detect whether the certificate has entered the certificate carrying guide rail; the second detection sensor is disposed on the side of the certificate carrying guide rail away from the anti-loss certificate box, and is electrically connected to the guide rail driver, and is used to detect whether the certificate has reached the edge of the certificate carrying guide rail away from the anti-loss certificate box.

[0014] In the anti-loss certificate issuing device of this utility model, the conveying module further includes a damping structure, which is disposed on the certificate carrying guide rail and is used to apply vertical pressure to the certificate located on the certificate carrying guide rail.

[0015] Compared with the prior art, the advantages of this utility model are as follows: In the working state, the anti-loss certificate holder and anti-loss certificate issuing device of this utility model, driven by the board driver, moves the baffle from a first position to a second position to expose the certificate slot. When the anti-loss certificate holder is used in the certificate issuing device, it can issue certificates through the certificate slot; when used in the certificate receiving device, it can collect certificates through the certificate slot. In the non-working state, the board driver does not operate, and the first elastic element provides elasticity, causing the baffle to move from the second position to the first position to block the certificate slot, preventing certificate loss and improving security. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments are briefly introduced below. The drawings described below are only the corresponding drawings of some embodiments of this utility model.

[0017] Figure 1 A schematic diagram of the anti-loss certificate issuing device provided in a preferred embodiment of this utility model.

[0018] Figure 2 Another structural schematic diagram of the anti-loss certificate issuing device provided in a preferred embodiment of this utility model.

[0019] Figure 3 A schematic diagram of the anti-loss certificate box provided in a preferred embodiment of this utility model.

[0020] Figure 4 This is another structural schematic diagram of the anti-loss certificate box provided in a preferred embodiment of the present invention, in which part of the box body is omitted.

[0021] Figure 5 A schematic diagram of the limiting component of the anti-loss certificate box provided in a preferred embodiment of this utility model.

[0022] Figure 6 A schematic diagram of the limit driver for the anti-loss card box provided in a preferred embodiment of this utility model.

[0023] Figure 7 This is a schematic diagram of the baffle of the anti-loss certificate box provided in a preferred embodiment of the present invention.

[0024] Figure 8 A schematic diagram of the structure of the fixing base of the anti-loss certificate issuing device provided in a preferred embodiment of this utility model.

[0025] Figure 9 A schematic diagram of the conveying module of the anti-loss certificate issuing device provided in a preferred embodiment of this utility model.

[0026] in, 1. Anti-loss certificate box 11. Box body, 111. Certificate opening, 12. Baffle, 121. Clearance groove, 1211. Step, 13. First elastic element, 14. Limiting structure, 141. Limiting component; 1411. First arm; 14111. Waist-shaped hole; 1412. Second arm. 142. Second elastic element, 143. Limit actuator; 1431. Connecting pin; 1432. Electromagnet. 2. Proof module, 3. Fixed base, 4. Fixed module, 41. Pressure block; 42. Third elastic element; 43. Cam; 44. Power motor. 5. Conveying module, 51. Document guide rail; 511. First document slot; 512. Second document slot. 52. First detection sensor, 53. Second detection sensor, 54. Damping structure, 55. Rail drive.

[0027] In the diagram, units with similar structures are represented by the same labels. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0029] The directional terms mentioned in this utility model, such as "up", "down", "front", "back", "left", "right", "inner", "outer", "side", "top" and "bottom", are only for reference to the orientation of the accompanying drawings. The directional terms used are for the purpose of explaining and understanding this utility model, and are not intended to limit this utility model.

[0030] The terms "first" and "second" in this utility model are used for descriptive purposes only and should not be construed as indicating or implying relative importance, nor as a restriction on the order of events.

[0031] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0032] Existing ID lockers are not secure enough as they are prone to losing IDs when not in use.

[0033] The following is a preferred embodiment of the anti-loss certificate box 1 and anti-loss certificate issuing device provided by this utility model, which can solve the above technical problems.

[0034] A preferred embodiment of this utility model provides a device for preventing the loss of identification documents. Please refer to... Figure 2 The anti-loss certificate issuing device includes an anti-loss certificate box 1 and a certificate pushing module 2.

[0035] Please refer to Figure 3 and Figure 4 The anti-loss document locker 1 includes a housing 11, a baffle 12, a first elastic element 13, and a plate actuator (not shown in the figure). The housing 11 is used to hold documents, and a document opening 111 is provided on one side of the housing 11. The baffle 12 is movably disposed at the document opening 111. The baffle 12 has a first position and a second position on its movement trajectory. When the baffle 12 is in the first position, the baffle 12 blocks the document opening 111. When the baffle 12 is in the second position, the document opening 111 is in the open state. Figure 4 In the first position, baffle 12 is located. A first elastic element 13 is connected to the housing 11 and the baffle 12 to provide elastic force, causing the baffle 12 to move from the second position to the first position. A plate driver is connected to the baffle 12 to drive the baffle 12 to move from the first position to the second position.

[0036] The push-out module 2 is located at the bottom of the housing 11 and is used to push out the certificate from the certificate opening 111.

[0037] Figure 1 In the diagram, the x-direction is horizontal, the y-direction is vertical, and the z-direction is vertical.

[0038] In the working state, the anti-loss certificate holder 1 and the anti-loss certificate issuing device of this utility model, the board driver drives the baffle 12 to move from the first position to the second position to expose the certificate opening 111. When the anti-loss certificate holder 1 is used as a certificate issuing device, it can issue certificates through the certificate opening 111. When the anti-loss certificate holder 1 is used as a certificate receiving device, it can collect certificates through the certificate opening 111. In the non-working state, the board driver does not work, and the first elastic member 13 provides elastic force to move the baffle 12 from the second position to the first position to block the certificate opening 111, preventing certificate loss and improving security.

[0039] Please refer to Figure 4 and Figure 6 The anti-loss card box 1 also includes a limiting structure 14, which is disposed inside the box body 11. The limiting structure 14 includes a limiting member 141, a second elastic member 142, and a limiting driver 143.

[0040] The limiting member 141 is movably configured, including a third position and a fourth position on its movement trajectory. When the limiting member 141 is in the third position, it can limit the baffle 12, preventing it from moving to the second position. When the limiting member 141 is in the fourth position, the baffle 12 can move from the first position to the second position. The second elastic member 142 is connected to the housing 11 and the limiting member 141, providing elastic force to move the limiting member 141 from the fourth position to the third position. The limiting actuator 143 is connected to the limiting member 141, driving the limiting member 141 to move from the third position to the fourth position. Figure 4 In the middle, the limiting component 141 is located in the third position.

[0041] In the non-operating state, the second elastic element 142 moves the limiting element 141 from the fourth position to the third position. Vertically, the limiting element 141 can limit the baffle 12, preventing it from moving from the first position to the second position, thus keeping the certificate opening 111 in a blocked state and further improving safety performance. In the operating state, the limiting actuator 143 drives the limiting element 141 from the third position to the fourth position, allowing the baffle 12 to move from the first position to the second position, and the certificate opening 111 can be normally exposed. The limiting structure 14 is located inside the housing 11, preventing interference from external forces and improving safety performance.

[0042] Please refer to Figure 7 The baffle 12 is vertically movable and has a clearance groove 121. A limiting member 141 is movably disposed at the clearance groove 121. When the limiting member 141 is in the third position, it can limit the side wall of the clearance groove 121 vertically. The movable placement of the limiting member 141 at the clearance groove 121 effectively saves space, making the anti-lost card box 1 compact in structure.

[0043] Please refer to Figure 5 and Figure 6The limiting member 141 includes a first arm 1411 and a second arm 1412, which are connected in an L-shape. The connection between the first arm 1411 and the second arm 1412 is rotatably connected to the housing 11. The first arm 1411 is provided with an oblong hole 14111, the length direction of which is consistent with the length direction of the first arm 1411. A second elastic member 142 is connected to the first arm 1411. When the limiting member 141 is in the third position, the second arm 1412 can limit the side wall of the clearance groove 121 vertically. The limit actuator 143 includes a connecting pin 1431 and an electromagnet 1432. The connecting pin 1431 is movably inserted through the oblong hole 14111. The electromagnet 1432 is connected to the connecting pin 1431 and is used to drive the connecting pin 1431 to move in a straight line, thereby driving the first arm 1411 to rotate, and then driving the limit member 141 to rotate from the third position to the fourth position.

[0044] When the electromagnet 1432 is energized, it drives the connecting pin 1431 to move in a set direction. The connecting pin 1431 is movably inserted through the oblong hole 14111, which can drive the first arm 1411 to rotate, causing the limiting member 141 to move from the third position to the fourth position. The baffle 12 can move from the first position to the second position, and the certificate opening 111 can be opened. When the electromagnet 1432 is de-energized, the connecting pin 1431 loses external force control, and the second elastic member 142 pulls the first arm 1411 to rotate in the opposite direction. The limiting member 141 moves from the fourth position to the third position, and the second arm 1412 can vertically limit the side wall of the clearance groove 121, preventing the baffle 12 from moving to the second position and keeping the certificate opening 111 sealed. With the above structure, it is easy to control the position change of the limiting member 141.

[0045] Please refer to Figure 7 A step 1211 is provided inside the clearance groove 121. When the limiting member 141 is in the third position, the second support arm 1412 is vertically positioned, with its bottom end abutting against the step 1211 to restrict the upward movement of the step 1211. The limiting member 141 can rotate at a small angle, and the vertical displacement of the second support arm 1412 is small. By providing the step 1211, the distance between the second support arm 1412 and the vertical sidewall of the clearance groove 121 can be made larger, thus avoiding restriction of the movement of the baffle 12.

[0046] Please refer to Figure 1 , Figure 2 and Figure 8The anti-loss certificate issuing device also includes a fixed base 3 and a fixed module 4. The anti-loss certificate box 1 is detachably mounted on the fixed base 3. The fixed module 4 includes a pressure block 41, a third elastic element 42, a cam 43, and a power motor 44. The pressure block 41 is rotatably mounted on the fixed base 3 and is used to press down on or release the anti-loss certificate box 1. The third elastic element 42 is connected to one end of the fixed base 3 and the pressure block 41, and is used to provide elastic force so that the other end of the pressure block 41 rises and releases the anti-loss certificate box 1. The cam 43 is rotatably connected to the fixed base 3 and abuts against the pressure block 41. The power motor 44 is connected to the cam 43 and is used to drive the cam 43 to rotate, thereby driving the pressure block 41 to rotate, so that the other end of the pressure block 41 presses down on the anti-loss certificate box 1.

[0047] During normal operation, the power motor 44 drives the cam 43 to rotate, causing its protruding position to abut against one end of the pressure block 41, thus pressing the other end of the pressure block 41 downwards against the anti-lost ID card holder 1. When the anti-lost ID card holder 1 needs to be replaced, the power motor 44 drives the cam 43 to rotate again, causing its recessed position to abut against one end of the pressure block 41. The third elastic element 42 provides elastic force, causing the other end of the pressure block 41 to rise away from the anti-lost ID card holder 1. When the pressure block 41 presses against the anti-lost ID card holder 1, it prevents the anti-lost ID card holder 1 from shaking during operation, facilitating the precise insertion of the push module 2 into the push opening. When the pressure block 41 moves away from the anti-lost ID card holder 1, it does not hinder the replacement of the anti-lost ID card holder 1.

[0048] Please refer to Figure 1 and Figure 8 The anti-loss certificate issuing device also includes a conveying module 5, which includes a certificate-carrying guide rail 51 and a guide rail driver 55. The certificate-carrying guide rail 51 is arranged to move laterally. At one end of the certificate-carrying guide rail 51 facing the anti-loss certificate box 1, a first certificate slot 511 is provided, which can communicate with the certificate slot 111. At the other end, opposite to the longitudinal direction, a second certificate slot 512 is provided, which communicates with the first certificate slot 511. The two inner sidewalls of the certificate-carrying guide rail 51 can laterally limit the movement of the certificate. The guide rail driver 55 is connected to the certificate-carrying guide rail 51 and is used to drive the certificate-carrying guide rail 51 to move laterally.

[0049] After the document leaves the anti-loss document box 1 through the document slot 111, it enters the document carrying guide rail 51 through the first document slot 511. The guide rail driver 55 drives the document carrying guide rail 51 to move to the next station, and the document can leave the document carrying guide rail 51 through the first document slot 511 or the second document slot 512. The two transverse inner side walls of the document carrying guide rail 51 can laterally limit the document, which can prevent the document from falling off during lateral movement.

[0050] Please refer to Figure 8The conveying module 5 also includes a first detection sensor 52 and a second detection sensor 53. The first detection sensor 52 is disposed on the side of the document-carrying guide rail 51 near the anti-lost document box 1, and is electrically connected to the guide rail driver 55. The first detection sensor 52 is used to detect whether the document has entered the document-carrying guide rail 51. The second detection sensor 53 is disposed on the side of the document-carrying guide rail 51 away from the anti-lost document box 1, and is electrically connected to the guide rail driver 55. The second detection sensor 53 is used to detect whether the document has reached the edge of the document-carrying guide rail 51 away from the anti-lost document box 1.

[0051] When the first detection sensor 52 detects an identification document, the system determines that the document has entered the document-carrying guide rail 51, and the guide rail driver 55 drives the document-carrying guide rail 51 to move. When the second detection sensor 53 detects an identification document, the system determines that the pushing force is too great and there is a possibility that the document may be pushed out of the document-carrying guide rail 51, issues an alarm, and the guide rail driver 55 stops driving the document-carrying guide rail 51 to move. With the above structure, the guide rail driver 55 can control the movement or cessation of the document-carrying guide rail 51.

[0052] Please refer to Figure 9 The conveying module 5 also includes a damping structure 54 disposed on the document guide rail 51, which is used to apply vertical pressure to the document located on the document guide rail 51. By applying vertical pressure to the document through the damping structure 54, the document can be prevented from being pushed out of the document guide rail 51 and is confined within the document guide rail 51.

[0053] The working principle of the anti-loss certificate issuing device in the preferred embodiment of this utility model is as follows: In operation, the electromagnet 1432 is energized, which drives the connecting pin 1431 to move in a set direction. The connecting pin 1431 is movably inserted through the waist-shaped hole 14111, which can drive the first arm 1411 to rotate, so that the limiting member 141 moves from the third position to the fourth position. The plate driver drives the baffle 12 to move from the first position to the second position to expose the certificate opening 111.

[0054] In the non-working state, the electromagnet 1432 is de-energized, the connecting pin 1431 loses external force control, the second elastic element 142 pulls the first arm 1411 to rotate in the opposite direction, the limiting element 141 moves from the fourth position to the third position, the second arm 1412 can limit the side wall of the clearance groove 121 in the vertical direction, preventing the baffle 12 from moving to the second position, the first elastic element 13 provides elastic force to make the baffle 12 move from the second position to the first position, so as to block the certificate opening 111 and keep the certificate opening 111 blocked.

[0055] During normal operation, the power motor 44 drives the cam 43 to rotate, causing its protruding position to abut against one end of the pressure block 41, thereby pressing the other end of the pressure block 41 downwards against the anti-lost ID card holder 1. When the anti-lost ID card holder 1 needs to be replaced, the power motor 44 drives the cam 43 to rotate again, causing its recessed position to abut against one end of the pressure block 41. The third elastic element 42 provides elastic force, causing the other end of the pressure block 41 to rise away from the anti-lost ID card holder 1.

[0056] After the document leaves the anti-loss document box 1 through the document port 111, it enters the document carrying guide rail 51 through the first document port 511. The guide rail driver 55 drives the document carrying guide rail 51 to move to the next station. The document can leave the document carrying guide rail 51 through the first document port 511 or the second document port 512.

[0057] When the first detection sensor 52 detects an ID, the system determines that the ID has entered the document-carrying guide rail 51, and the guide rail driver 55 drives the document-carrying guide rail 51 to move. When the second detection sensor 53 detects an ID, the system determines that the pushing force is too great and there is a possibility that the ID may be pushed out of the document-carrying guide rail 51, issues an alarm, and the guide rail driver 55 stops driving the document-carrying guide rail 51 to move.

[0058] This is the working principle of the anti-loss certificate issuing device in this preferred embodiment.

[0059] This utility model discloses an anti-loss ID card holder and an anti-loss ID card issuing device. In operation, a board driver moves a baffle from a first position to a second position to expose the ID card slot. When the anti-loss ID card holder is used in the issuing device, it can issue ID cards through the slot; when used in the receiving device, it can collect ID cards through the slot. In non-operating mode, the board driver is inactive, and a first elastic element provides elasticity, causing the baffle to move from the second position to the first position to block the ID card slot, preventing ID card loss and improving security.

[0060] In summary, although the present invention has been disclosed above with reference to preferred embodiments, the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the concept of the technical solution of the present invention, should be included within the scope of protection of the present invention.

Claims

1. A lost-proof certificate holder, characterized in that, include: A box for holding documents, with a document opening on one side of the box; A baffle is movably disposed at the certificate opening. The baffle has a first position and a second position on its movement trajectory. When the baffle is in the first position, the baffle blocks the certificate opening. When the baffle is in the second position, the certificate opening is in an open state. A first elastic element, connected to the housing and the baffle, provides elastic force to move the baffle from the second position to the first position; and A board driver, connected to the baffle, is used to drive the baffle to move from the first position to the second position.

2. The anti-loss certificate box according to claim 1, characterized in that, The anti-loss card holder also includes a limiting structure disposed within the holder body, the limiting structure comprising: A limiting member is movably configured, and the limiting member includes a third position and a fourth position on its movement trajectory; when the limiting member is located in the third position, the limiting member can limit the baffle and prevent the baffle from moving to the second position; when the limiting member is located in the fourth position, the baffle can move from the first position to the second position; A second elastic element, connected to the housing and the limiting element, provides elastic force to move the limiting element from the fourth position to the third position; and A limit driver, connected to the limit member, is used to drive the limit member to move from the third position to the fourth position.

3. The anti-loss certificate box according to claim 2, characterized in that, The baffle is vertically movable and has a clearance groove; the limiting member is movably disposed at the clearance groove, and when the limiting member is in the third position, the limiting member can limit the side wall of the clearance groove in the vertical direction.

4. The anti-loss certificate box according to claim 3, characterized in that, The limiting member includes a first arm and a second arm, which are connected in an L-shape. The connection between the first arm and the second arm is rotatably connected to the housing. The first arm has an oblong hole, the length of which is aligned with the length of the first arm. A second elastic member is connected to the first arm. When the limiting member is in the third position, the second arm can vertically limit the sidewall of the clearance groove. The limiting actuator includes a connecting pin and an electromagnet; the connecting pin is movably inserted through the oblong hole; the electromagnet is connected to the connecting pin and is used to drive the connecting pin to move in a straight line, thereby driving the first arm to rotate, and then driving the limiting member to rotate from the third position to the fourth position.

5. The anti-loss certificate box according to claim 4, characterized in that, The clearance groove is provided with a step. When the limiting member is in the third position, the second support arm is vertically set and its bottom end abuts against the step to restrict the step from moving upward.

6. A device for preventing the loss of identification documents, characterized in that, include: The anti-loss certificate box according to any one of claims 1-5; as well as, The certificate pushing module is located at the bottom of the box and is used to push the certificate out from the certificate opening.

7. The anti-loss certificate issuing device according to claim 6, characterized in that, The anti-loss certificate issuing device also includes: The fixed base, wherein the anti-loss card holder is detachably mounted on the fixed base; and, A fixing module includes a pressure block, a third elastic element, a cam, and a power motor. The pressure block is rotatably mounted on the fixing base and is used to press down on or release the anti-lost ID box. The third elastic element is connected to the fixing base and one end of the pressure block, and provides elastic force to raise the other end of the pressure block and release the anti-lost ID box. The cam is rotatably connected to the fixing base and abuts against the pressure block. The power motor is connected to the cam and drives the cam to rotate, thereby causing the pressure block to rotate so that the other end of the pressure block presses down on the anti-lost ID box.

8. The anti-loss certificate issuing device according to claim 6, characterized in that, The anti-loss certificate issuing device also includes a conveying module, which comprises: A document-carrying guide rail is laterally movable. One end of the guide rail, facing the anti-loss document locker, has a first document slot that communicates with the document opening. The other end, facing the same direction, has a second document slot that communicates with the first document slot. The two inner sidewalls of the guide rail laterally limit the movement of the document. A guide rail driver, connected to the certificate guide rail, is used to drive the certificate guide rail to move laterally.

9. The anti-loss certificate issuing device according to claim 8, characterized in that, The conveying module further includes a first detection sensor and a second detection sensor; the first detection sensor is disposed on the side of the document-carrying guide rail near the anti-loss document box, and is electrically connected to the guide rail driver, and is used to detect whether the document has entered the document-carrying guide rail; the second detection sensor is disposed on the side of the document-carrying guide rail away from the anti-loss document box, and is electrically connected to the guide rail driver, and is used to detect whether the document has reached the edge of the document-carrying guide rail away from the anti-loss document box.

10. The anti-loss certificate issuing device according to claim 8, characterized in that, The conveying module also includes a damping structure disposed on the certificate guide rail for applying vertical pressure to the certificate located on the certificate guide rail.

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