Key bolt lock and key management device

Abstract

The utility model discloses a key bolt locking device and a key management device, the key management device comprises a key bolt, a bolt body of the key bolt is cylindrical, two ends of the bolt body are respectively connected with a key chain and a top body with an arc-shaped end face, and an annular clamping groove is arranged between the top body and the bolt body; the key bolt socket comprises at least one key bolt locking device, each key bolt locking device comprises an electromagnet and a cylinder, the top body end of the key bolt can be inserted into the cylinder, a lock hole is formed in the cylinder, the free end of an iron core of the electromagnet penetrates through the lock hole and is inserted into a clamping groove of the key bolt, and the iron core is sleeved with a reset spring. According to the key cabinet, the problems that key management is disordered, keys are inconvenient to take and use, the size of the key cabinet is large and the like are solved, the key bolt lock is used for locking and managing the key bolt, orderly management of the keys can be achieved through matching of the key bolt and the lock, and due to the full-angle matching mode of the circular key bolt and the cylinder, the key cabinet is convenient to use. The arrangement gap and depth of the key bolt can be effectively reduced, and space is saved.

Description

Technical Field

[0001] This utility model relates to the field of key management technology, and in particular to a key bolt locker and a key management device. Background Technology

[0002] Keys are a common and important item used to lock doors or cabinets. A key often signifies access to an area or item. Most keys are shared by multiple people and need to be rotated. During this rotation, there is a risk of loss or unauthorized use. Therefore, proper key management is an important issue.

[0003] Many organizations use a large number of keys, and the current common way to manage keys is to hang them all on the wall. This leads to problems such as keys being placed in disarray and being stolen. Keys in normal use are also lost. Some organizations entrust the management of keys to specific personnel, but this management method not only wastes manpower but also increases the communication costs of retrieving keys, which is time-consuming and laborious. Therefore, it is necessary to use specially designed key management equipment to ensure the safe and orderly storage and quick retrieval of keys. Chinese Patent Publication No. CN110236311A, published on September 17, 2019, entitled "An Intelligent Key Cabinet and Key Storage and Retrieval Method," discloses a key cabinet including a key retrieval component, a main body component, a key storage component, and a control component. It can be used for unified storage and management of keys. However, the key cabinet provided by this patent uses a rotatable key hook to hang and lock the keys. Opening the key hook to retrieve the key is complicated and laborious, and putting the key back is also inconvenient. Moreover, the key hook is easily damaged. The structure controlling the locking and unlocking on the key cabinet requires a long extension space, and the arrangement density of the key hooks is limited by the width of the key and the integration degree of the control component, so it cannot be set too densely. This results in a thick and wide key cabinet that occupies a lot of space. Utility Model Content

[0004] This invention overcomes the problems of chaotic key management, inconvenient key retrieval, and bulky key cabinets by providing a key management device. It uses a key bolt to bind the corresponding key and a key bolt locker to lock and manage the key bolt. The key bolt adopts a circular structure that allows for quick insertion into the key bolt locker, facilitating key retrieval and return. The cooperation between the key bolt and the locker enables orderly key management. Due to the full-angle cooperation between the circular key bolt and the cylinder, the spacing and depth of the key bolt arrangement can be effectively reduced, saving space.

[0005] To achieve the above objectives, the present invention adopts the following solution:

[0006] The key bolt has a cylindrical body, with a key buckle and a top body with an arc-shaped end face connected to both ends of the body. An annular groove is provided between the top body and the key bolt.

[0007] Preferably, the plug body includes a metal outer shell and a metal inner core separated by an insulating sleeve. The top body is made of a conductive material and is electrically connected to the inner core. A chip is also disposed inside the plug body, and the positive and negative terminals of the chip are connected to the metal inner core and the metal outer shell, respectively.

[0008] This application also provides a key bolt locker, including an electromagnet and a cylinder for inserting a key bolt, the cylinder having a lock hole, the free end of the electromagnet's core passing through the lock hole to lock the key bolt in the cylinder, and a return spring sleeved on the core, the return spring exerting force on the core toward the cylinder.

[0009] Preferably, the key bolt lock also includes an emergency unlocking handle, one end of which is vertically fixed to the iron core.

[0010] This application also provides a key management device, including:

[0011] A key bolt, the bolt body of which is cylindrical, with a key buckle and a top body with an arc-shaped end face connected to both ends of the bolt body, and an annular groove provided between the top body and the bolt body;

[0012] A key bolt socket includes at least one key bolt locker, the key bolt locker including an electromagnet and a cylinder into which the top end of the key bolt is inserted, the cylinder having a lock hole, the free end of the iron core of the electromagnet passing through the lock hole and inserted into the slot of the key bolt, a return spring sleeved on the iron core, the return spring exerting force on the iron core toward the cylinder.

[0013] Preferably, the bolt body includes a metal outer shell and a metal inner core separated by an insulating sleeve. The top body is made of conductive material and is electrically connected to the inner core. A chip is also provided inside the bolt body, and the positive and negative terminals of the chip are connected to the metal inner core and the metal outer shell, respectively.

[0014] The inner wall of the cylinder of the key bolt lock is provided with a positive electrode and a negative electrode for power supply. The positive electrode abuts against the top body, and the negative electrode abuts against the metal shell.

[0015] Preferably, the key bolt socket is provided with a back plate for mounting the key bolt locker, and the back plate is provided with an electromagnet socket for supplying power to the electromagnet and a pole contact socket for supplying power to the positive and negative poles.

[0016] Preferably, the back plate is provided with a cascade socket, which is electrically connected to the electromagnet socket and the electrode contact socket.

[0017] Preferably, the cylinder is provided with an elastic steel wire clip to assist in locking the key bolt, and the elastic steel wire clip is engaged in the slot.

[0018] Preferably, the key bolt socket is provided with a back plate for installing the key bolt locker, and the back plate is provided with a push-button switch, which corresponds one-to-one with the key bolt inserted into the cylinder, and the push-button switch is electrically connected to a key in position indicator.

[0019] This utility model includes at least the following beneficial effects: (1) The bolt body of the key bolt is cylindrical. When inserted into the locker, the top body with the arc-shaped end face can push open the iron core in the locker. The ring groove can cooperate with the iron core at any angle. It can be quickly inserted into the locker for fixing without adjusting the angle of the key bolt, and can realize the quick locking of the key and the key bolt; (2) The metal shell and top body of the key bolt have the effect of isolating positive and negative polarity conductivity. A chip can be embedded in the key bolt. Each key bolt can independently record the usage status information of the corresponding key, which is convenient for distinguishing and managing the key. Since the key bolt is connected with the key bolt locker by contact positive and negative polarity, the electromagnetic interference problem that exists when the inductive plug is close is avoided. The key bolt lockers can be set very densely, thereby reducing the volume of the entire key management device and saving space; (3) The key bolt The locking device uses a combination of magnetic attraction and spring. When the electromagnet is working, the magnetic attraction can quickly unlock the key bolt. When the electromagnet is not working, the return spring can keep the iron core in the locked key bolt position to prevent the key bolt from accidentally falling off or being taken away. (4) By setting a push-button switch at the other end of the cylinder, the push-button switch is connected to the key position indicator. When the key is in place, the key bolt presses against the push-button switch. By checking the key position indicator, the position status information of all keys can be quickly known. (5) By integrating multiple key bolt lockers on the key bolt socket and using multiple key bolt sockets in combination through cascade sockets, it is convenient to adapt and expand the key management device according to the number of keys. (6) The circular structure of the key bolt, combined with the all-round locking method of the cylinder, allows the key bolt to obtain sufficient connection strength with a shallow insertion depth, which can greatly reduce the thickness of the key management device. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of a key bolt socket structure according to the present invention;

[0021] Figure 2 This is a schematic diagram of the overall structure of a key bolt according to the present invention;

[0022] Figure 3 This is a schematic diagram of the internal structure of a key bolt according to the present invention;

[0023] Figure 4 This is a schematic diagram illustrating the cooperation between a key bolt locker and a key bolt according to this utility model;

[0024] Figure 5 This is a schematic diagram of the internal structure of a key bolt lock according to the present invention;

[0025] Figure 6 This is a schematic diagram of the overall structure of a key management device according to the present invention.

[0026] In the diagram: 1. Bolt body, 101. Insulating sleeve, 102. Metal outer shell, 103. Metal inner core, 104. Chip, 2. Key buckle, 3. Top body, 4. Slot, 5. Electromagnet, 6. Iron core, 7. Cylinder, 8. Return spring, 9. Emergency unlocking handle, 10. Positive electrode, 11. Negative electrode, 12. Back plate, 13. Electromagnet socket, 14. Electrode contact socket, 15. Cascade socket, 16. Elastic wire clip, 17. Push-button switch, 18. Panel. Detailed Implementation

[0027] The present invention will now be described in further detail with reference to the accompanying drawings, so that those skilled in the art can implement it based on the description.

[0028] It should be understood that terms such as “having”, “including” and “comprising” used herein do not preclude the existence or addition of one or more other elements or combinations thereof.

[0029] It should be noted that, unless otherwise specified, the experimental methods described in the following embodiments are conventional methods, and the materials described are commercially available unless otherwise specified. In the description of this utility model, it should be noted that, unless otherwise explicitly stated and limited, the terms "installation," "connection," and "setting" should be interpreted broadly. For example, they can refer to fixed connection or setting, detachable connection or setting, or integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The terms "lateral," "longitudinal," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0030] like Figure 2As shown, the key bolt provided by this utility model has a cylindrical bolt body 1. A key buckle 2 and a top body 3 with an arc-shaped end face are respectively connected to both ends of the bolt body 1. An annular groove 4 is provided between the top body 3 and the bolt body 1. The key buckle 2 is used in conjunction with the key. For several keys that need to be used together, they can be bound together to one key buckle 2. Because the key and key buckle 2 are strictly bound, after the key is hung in the key buckle 2, the opening of the key buckle 2 can be welded or otherwise operated to prevent the key from being easily removed from the key buckle 2 for use. The arc-shaped end face of the top body 3 can adopt a hemispherical or semi-ellipsoidal structure. The arc-shaped section of the top body 3 can be directly connected to the slot 4, or a cylindrical section with the same diameter as the bolt body 1 can be set for transition connection. The change in diameter of the top body 3 allows it to gradually compress the bolt when inserted into the space with the elastic retractable bolt, so that the bolt can be smoothly locked into the slot 4. This quick locking effect can be achieved when the key bolt is rotated to any angle. Furthermore, when the key bolt is inserted into the cylinder 7, the arc-shaped end face will slide in the opening of the cylinder 7 to achieve automatic alignment, reducing the difficulty of alignment and making the operation more convenient and faster.

[0031] In another technical solution, such as Figure 3 As shown, the plug 1 includes a metal outer shell 102 and a metal inner core 103 separated by an insulating sleeve 101. The top body 3 is made of conductive material and is electrically connected to the inner core. A chip 104 is also disposed inside the plug 1. The positive and negative terminals of the chip 104 are connected to the metal inner core 103 and the metal outer shell 102, respectively. The plug 1 has a coaxial three-layer structure, consisting of a metal inner core 103, an insulating sleeve 101, and a metal outer shell 102 from the inside out. The metal inner core 103 and the top body 3 can be connected in an integral manner. The chip 104 is located in the two reserved spaces on the inner side of the plug 1. As a preferred installation method, the metal inner core 103 adopts a hollow structure and has the chip 104 embedded in an insulated barrier. By setting the bolt body 1 and top body 3 with positive and negative conductive functions, the possibility of powering and transmitting signals to the built-in chip 104 is provided. The built-in chip 104 enables each key bolt to independently store data, record the usage log and usage permission status information of the corresponding key, and use a dedicated device to easily read this information to understand the detailed usage of the key.

[0032] like Figure 3 and Figure 4As shown, this utility model also provides a key bolt locker, including an electromagnet 5 and a cylinder 7 for inserting a key bolt. The cylinder 7 is provided with a lock hole. The free end of the iron core 6 of the electromagnet 5 passes through the lock hole to lock the key bolt in the cylinder 7. A return spring 8 is sleeved on the iron core 6, and the return spring 8 applies force to the iron core 6 towards the cylinder 7. The electromagnet 5 is fixed to the outside of the cylinder 7. The cylinder 7 can adopt an open design for easy insertion. When the electromagnet 5 is energized, the iron core 6 is pulled out from the lock hole and retracted into the electromagnet 5 under magnetic attraction, thereby releasing the lock on the key bolt in the cylinder 7. A limiting piece is provided at a distance from the end of the free end of the iron core 6. The limiting piece abuts against the outer wall of the cylinder 7 around the lock hole to limit the length of the iron core 6 extending into the cylinder 7. At the same time, the limiting piece is also connected to one end of the return spring 8. The other end of the return spring 8 abuts against the shell of the electromagnet 5. The diameter of the return spring 8 gradually decreases towards the end of the iron core 6.

[0033] In another technical solution, such as Figure 4 As shown, the key bolt lock also includes an emergency unlocking handle 9, one end of which is vertically fixed to the iron core 6. When a malfunction causes the electromagnet 5 to malfunction, the iron core 6 can be moved in the retracting direction by moving the emergency unlocking handle 9, thereby unlocking the key bolt in an emergency and ensuring that the key can be used normally during fault repair.

[0034] like Figure 1-6 As shown, this utility model also provides a key management device, including:

[0035] The key bolt has a cylindrical body 1, with a key buckle 2 and a top body 3 with an arc-shaped end face connected to both ends of the body 1. An annular groove 4 is provided between the top body 3 and the body 1. This key bolt adopts the same structure and usage as the key bolt provided in the above scheme.

[0036] A key bolt socket includes at least one key bolt locker, which comprises an electromagnet 5 and a cylinder 7 into which the top end of the key bolt is inserted. The cylinder 7 has a lock hole. The free end of the iron core 6 of the electromagnet 5 passes through the lock hole and is inserted into the key bolt's slot 4. A return spring 8 is fitted onto the iron core 6, and the return spring 8 exerts a force on the iron core 6 towards the cylinder 7. Each key bolt locker in this key bolt socket adopts the same structure and usage as the key bolt locker provided in the above solution. The number of key bolt lockers integrated into the key bolt socket can be customized according to the number of keys.

[0037] When using this key management device to manage keys, the keys are pre-bound to the key buckle 2 of the key bolt. Initially, all key bolts are inserted into their corresponding key bolt lockers on the key bolt sockets. When retrieving a key, the staff selects the corresponding key according to their needs and permissions. This selection is typically performed on the display panel of the management system that matches this key management device. This management system can be implemented using a common permission management system and an electromagnet operating status control module. If the staff has the permission to use the selected key and the key is in place, the corresponding electromagnet 5 operates to unlock the key bolt, allowing the staff to easily retrieve the key bolt and use the corresponding key. When returning a key, the key bolt is inserted into its corresponding key bolt locker. The iron core 6 springs open under the pressure of the top body 3. When the key bolt's slot 4 reaches the position corresponding to the lock hole, the return spring 8 resets the iron core 6, locking it in the slot 4 and completing the key bolt locking.

[0038] This key management device uses a cylindrical key bolt body 1. When inserted into the lock, the top body 3 with an arc-shaped end face can smoothly push open the iron core 6 in the lock. A full-circle annular groove 4 can engage with the iron core 6 at any angle, allowing for quick insertion and fixation into the lock without adjusting the angle of the key bolt, thus achieving rapid locking of the key and key bolt. The key bolt lock uses a combination of magnetic attraction and spring. When the electromagnet 5 is working, the magnetic attraction can quickly unlock the key bolt. When the electromagnet 5 is not working, the return spring 8 can keep the iron core 6 in the locked position, preventing the key bolt from accidentally falling off. The circular structure of the key bolt, combined with the omnidirectional locking method of the cylinder 7, allows the key bolt to achieve sufficient connection strength with a shallow insertion depth, which can greatly reduce the thickness of the key management device.

[0039] In another technical solution, such as Figure 3 As shown, the bolt body 1 of the key bolt includes a metal outer shell 102 and a metal inner core 103 separated by an insulating sleeve 101. The top body 3 is made of conductive material and is electrically connected to the inner core. A chip 104 is also provided inside the bolt body 1. The positive and negative terminals of the chip 104 are connected to the metal inner core 103 and the metal outer shell 102, respectively.

[0040] like Figure 4As shown, the inner wall of the cylinder 7 of the key bolt lock is provided with a positive electrode 10 and a negative electrode 11 for power supply. The positive electrode 10 abuts against the top body 3, and the negative electrode 11 abuts against the metal shell 102. The positive electrode 10 and the negative electrode 11 can adopt the structure of a common compression spring to achieve close contact with the top body 3 and the metal shell 102. The positive electrode 10 and the negative electrode 11 pass outward through the cylinder 7 and are connected to the power supply or control circuit board, forming a preferred structure for powering the chip 104 inside the key bolt. The metal shell 102 and the top body 3 of the key bolt body 1 have an isolated positive and negative conductive effect, and the chip 104 can be embedded in the key bolt. Each key bolt can independently record the usage status information of the corresponding key, which is convenient for distinguishing and managing the keys. Since the key bolt uses a contact-type positive and negative connection method to cooperate with the key bolt lock, the problem of electromagnetic interference when the inductive plug is close is avoided. The key bolt locks can be set very densely, thereby reducing the size of the entire key management device and saving installation space.

[0041] like Figure 1 As shown, the key bolt socket is provided with a back plate 12 for mounting the key bolt locker. The back plate 12 is provided with an electromagnet socket 13 for powering the electromagnet 5 and a pole contact socket 14 for powering the positive pole piece 10 and the negative pole piece 11. The back plate 12 can be made of circuit board material, serving as a frame carrier for mounting the key bolt locker while also realizing the wiring of the circuit and the integration of the control module. The electromagnet socket 13 and the pole contact socket 14 can be uniformly powered and controlled through the control module equipped on the back plate 12, facilitating the management of all key bolt lockers. Correspondingly, a front panel 18 and upper and lower connecting plates can be provided, which, together with the back plate 12, form the housing of the key bolt socket. The panel 18 is provided with plate holes corresponding one-to-one with the cylinder 7, and the plate holes are labeled with serial numbers.

[0042] like Figure 1 As shown, a cascading socket 15 is provided on the back plate 12, which is electrically connected to the electromagnet socket 13 and the electrode contact socket 14. The cascading socket 15 provides a cascading interface for cascading between two or more key bolt sockets, realizing the scaling of the key management device to adapt to scenarios with a large basic or incremental number of keys in the key management process.

[0043] In another technical solution, such as Figure 1 As shown, the cylinder 7 is provided with an elastic steel wire clip 16 for assisting in locking the key bolt. The elastic steel wire clip 16 is engaged in the slot 4. The cylinder 7 has slots that penetrate the cylinder wall on both sides of the lock hole. The elastic steel wire clip 16 is clamped in the slot in the form of a clamp. The part inside the cylinder 7 has a circular outline and is engaged in the slot 4. When the key bolt is pulled out, the inner side of the elastic steel wire clip 16 is subjected to force and opens, popping out from the slot 4.

[0044] In another technical solution, such as Figure 1 As shown, the key bolt socket is provided with a back plate 12 for installing the key bolt locker. A push-button switch 17 is provided on the back plate 12, and each push-button switch 17 corresponds one-to-one with a key bolt inserted into the cylinder 7. Each push-button switch 17 is electrically connected to a key-in-position indicator. The push-button switch 17 has a flexible structure. When the key is in position, the top of the key bolt 3 directly or indirectly presses against the push-button switch 17, switching it to the on state. The key-in-position indicator displays the information that the key is in position. The key-in-position indicator can be an indicator light directly controlled by the push-button switch 17. As an energy-saving option, the indicator light can be off to indicate that the key is in position, while the indicator light on indicates that the key is to be returned. The key-in-position indicator can also be displayed using a management system display panel, collecting the status information of all push-button switches 17 and displaying the position information of all keys simultaneously on one page in the form of a key symbol matrix. Staff can intuitively know whether the corresponding key is in position based on the status of the key-in-position indicator, and whether it is locked in place when the key is returned.

[0045] The number of devices and processing scale described herein are for the purpose of simplifying the description of this utility model. Applications, modifications, and variations of this utility model will be readily apparent to those skilled in the art.

[0046] Although the embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the description and implementation methods. They can be fully applied to various fields suitable for the present invention. For those familiar with this field, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and illustrations shown and described herein.

Claims

1. A key bolt locker, characterized in that, The device includes an electromagnet and a cylinder into which a key bolt is inserted. The cylinder has a lock hole. The free end of the electromagnet's core passes through the lock hole to hold the key bolt in the cylinder. A return spring is fitted on the core, and the return spring exerts a force on the core toward the cylinder. The key bolt has a cylindrical body, with a key buckle and a top body with an arc-shaped end face connected to both ends of the bolt. An annular groove is provided between the top body and the bolt.

2. The key bolt locking device according to claim 1, characterized in that, The plug body includes a metal outer shell and a metal inner core separated by an insulating sleeve. The top body is made of conductive material and is electrically connected to the inner core. A chip is also disposed inside the plug body, and the positive and negative terminals of the chip are connected to the metal inner core and the metal outer shell, respectively.

3. The key bolt locker according to claim 1, characterized in that, It also includes an emergency unlocking handle, one end of which is vertically fixed to the iron core.

4. A key management device, characterized in that, include: A key bolt, the bolt body of which is cylindrical, with a key buckle and a top body with an arc-shaped end face connected to both ends of the bolt body, and an annular groove provided between the top body and the bolt body; A key bolt socket includes at least one key bolt locker, the key bolt locker including an electromagnet and a cylinder into which the top end of the key bolt is inserted, the cylinder having a lock hole, the free end of the iron core of the electromagnet passing through the lock hole and inserted into the slot of the key bolt, a return spring sleeved on the iron core, the return spring exerting force on the iron core toward the cylinder.

5. The key management device according to claim 4, characterized in that, The key bolt body includes a metal outer shell and a metal inner core separated by an insulating sleeve. The top body is made of conductive material and is electrically connected to the inner core. A chip is also provided inside the bolt body, and the positive and negative terminals of the chip are connected to the metal inner core and the metal outer shell, respectively. The inner wall of the cylinder of the key bolt lock is provided with a positive electrode and a negative electrode for power supply. The positive electrode abuts against the top body, and the negative electrode abuts against the metal shell.

6. The key management device according to claim 5, characterized in that, The key bolt socket is provided with a back plate for mounting the key bolt locker. The back plate is provided with an electromagnet socket for powering the electromagnet and a pole contact socket for powering the positive and negative poles.

7. The key management device according to claim 6, characterized in that, The back panel is provided with a cascade socket, which is electrically connected to the electromagnet socket and the electrode contact socket.

8. The key management device according to claim 4, characterized in that, The cylinder is provided with an elastic steel wire clip to assist in locking the key bolt, and the elastic steel wire clip is engaged in the slot.

9. The key management device according to claim 4, characterized in that, The key bolt socket is provided with a back plate for installing the key bolt locker. The back plate is provided with a push-button switch, which corresponds one-to-one with the key bolt inserted into the cylinder. The push-button switch is electrically connected to a key position indicator.

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