Double-key unlocking device

Abstract

The utility model provides a double-key unlocking device. The double-key unlocking device comprises a shell; the first key assembly is movably arranged in the shell and has a state of being stored in the shell and a state of extending out of the shell; the second key assembly is movably arranged in the shell and has a state of being stored in the shell and a state of extending out of the shell; the interlocking piece is movably arranged between the first key assembly and the second key assembly, when one of the first key assembly and the second key assembly is switched to extend out of the shell, the interlocking piece is driven to move, and the interlocking piece extends into and locks the other one of the first key assembly and the second key assembly. The key solves the problem that a key in the prior art is inconvenient to carry and use.

Description

Technical Field

[0001] The utility model relates to the technical field of unlockers, in particular to a double-key unlocking device. Background Art

[0002] At present, the management of multiple keys has the problems of messy management, inconvenience in use and search. In order to solve the above problems, multiple keys are generally integrated together for unified authorization management. In order to ensure the effectiveness of management, a common method is to equip each key with an authorization drive unit so that each key can be managed separately. However, this method requires a larger space inside the key, resulting in a larger key size, and the wiring and mechanism layout are too complicated. There are management conflicts between multiple keys, which is not conducive to the carrying and use of keys. Utility Model Content

[0003] The main purpose of the utility model is to provide a dual-key unlocking device to solve the problem that the keys in the prior art are inconvenient to carry and use.

[0004] In order to achieve the above-mentioned purpose, the utility model provides a dual-key unlocking device, including: a shell; a first key assembly, the first key assembly is movably arranged in the shell, and has a state of being received in the shell and a state of being extended out of the shell; a second key assembly, the second key assembly is movably arranged in the shell, and has a state of being received in the shell and a state of being extended out of the shell; an interlocking piece, the interlocking piece is movably arranged between the first key assembly and the second key assembly, and when one of the first key assembly and the second key assembly switches to the state of extending out of the shell, the interlocking piece is driven to move, and the interlocking piece extends into and locks the other of the first key assembly and the second key assembly.

[0005] Furthermore, the first key assembly and the second key assembly both have a locking groove, and the interlocking piece has a plurality of locking ends that cooperate with the locking grooves. When the first key assembly and the second key assembly are both in a state of being stored in the shell, there is a movement gap between the locking grooves and the locking ends of the first key assembly and the second key assembly. When one of the first key assembly and the second key assembly switches to a state of extending out of the shell, the interlocking piece is pushed to move, and the locking end of the interlocking piece extends into the locking groove of the other of the first key assembly and the second key assembly and hinders the movement of the first key assembly or the second key assembly.

[0006] Furthermore, the first key assembly and the second key assembly can both be rotatably arranged, the interlocking piece is located between the first key assembly and the second key assembly, and the moving trajectory of the interlocking piece is perpendicular to the rotation axes of the first key assembly and the second key assembly.

[0007] Furthermore, the dual-key unlocking device further comprises a rolling member, which is arranged between the interlocking member and the housing, and rolling friction is formed between the interlocking member and the rolling member, and between the rolling member and the housing.

[0008] Furthermore, the dual-key unlocking device also includes: an authorization component, wherein the first key component and the second key component are provided with an authorization component, the authorization component is movably arranged and has an authorized state and an unauthorized state; a driving component, the driving component has a movable authorization end corresponding to the first key component and the second key component respectively, when the first key component or the second key component is switched to a state of extending out of the shell, the authorization component is located on the movement path of the corresponding authorization end, and the corresponding authorization end moves and drives the authorization component to switch to the authorized state.

[0009] Furthermore, the first key assembly and the second key assembly include a main body and a key blade, the key blade is connected to the main body and moves synchronously, the authorization assembly is movably arranged in the key blade, one end of the authorization assembly is located in the main body, the authorization end is located in the main body, and the authorization assembly is driven to switch to the authorization state by pushing one end of the authorization assembly.

[0010] Furthermore, the driving assembly includes: a driving member; a push rod, which is drivingly connected to the driving member and moves under the drive of the driving member, the push rod has a plurality of extending arms, the extending arms respectively cooperate with the first key assembly and the second key assembly, the extending arms have a protruding column, the protruding column is located in the first key assembly or the second key assembly and has an authorization end.

[0011] Furthermore, the authorization component includes: an authorization piece for unlocking the lock, the authorization piece is movably arranged in the part of the first key component or the second key component extending out of the shell; an authorization rod, the authorization rod is movably arranged in the first key component or the second key component and abuts against the authorization piece, when the first key component or the second key component is switched to a state extending out of the shell, the authorization rod is located on the movement path of the authorization end, and the authorization end drives the authorization piece to move by pushing the authorization rod; a reset piece, the reset piece abuts against the authorization piece and provides a reset force for the authorization piece to move to an unauthorized state.

[0012] Furthermore, the first key assembly and / or the second key assembly has an avoidance groove, the authorization end is located in the avoidance groove, and when the first key assembly or the second key assembly moves, the authorization end moves relative to the avoidance groove, and the end of the authorization rod away from the authorization member is located in the avoidance groove.

[0013] Furthermore, the avoidance groove includes a first section, a second section and a third section connected in sequence, the first section is a straight section, a part of the authorization rod is located in the first section, the second section is an arc section, and the third section is an arc section. When the first key assembly or the second key assembly rotates to a switching state, the first key assembly or the second key assembly is in a state of being stored in the shell and the authorization assembly is actuated, the authorization end has a movement located in the third section and relative to the third section.

[0014] By applying the technical solution of the utility model, a first key assembly and a second key assembly are simultaneously arranged in the shell, so that the dual-key unlocking device has two or more keys at the same time. Compared with the traditional method of managing each key separately, the size of the dual-key unlocking device can be greatly reduced, making it easier to carry and use. At the same time, in order to ensure the effectiveness of management, an interlocking part is also provided. The interlocking part can cooperate with the corresponding key assembly as needed to lock the unused key assembly. Specifically, under normal circumstances, both key assemblies are stored in the shell. At this time, the interlocking part neither locks the first key assembly nor the second key assembly, and both key assemblies can be extended normally. When one of the key assemblies needs to be used, taking the use of the first key assembly as an example, the first key assembly is switched to a state of extending from the shell. During this process, the first key assembly drives the interlocking part to move, so that the interlocking part extends into the second key assembly. At this time, the movement of the second key assembly is locked by the interlocking part, so that the second key assembly cannot move, thereby locking the position of the second key assembly. In this way, the effect of the second key assembly being unable to be used when the first key assembly is in use is achieved, that is, only one of the two key assemblies can be used to unlock, and one key assembly is taken out while the other key assembly remains stored, thereby achieving effective management of the dual-key unlocking device while achieving the aforementioned reduction in overall volume. On the one hand, the above-mentioned arrangement enables a dual-key unlocking device to accommodate two keys at the same time, thereby reducing the space required for storing multiple keys, reducing the overall footprint of multiple keys, and facilitating carrying and use. On the other hand, it ensures effective management of keys, avoids management conflicts, and ensures that only one key can be used, preventing two key components from being taken out at the same time to obtain authorization to illegally open the lock, thereby ensuring security. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0016] Figure 1 The schematic diagram of the structure of the dual-key unlocking device of the utility model is shown;

[0017] Figure 2Shows Figure 1 A schematic diagram of the structure of the unlocking mechanism without the housing;

[0018] Figure 3 Shows Figure 2 A rear cross-sectional view of

[0019] Figure 4 Shows Figure 2 A schematic diagram of the structure of the unlocking mechanism in use;

[0020] Figure 5 Shows Figure 4 A rear cross-sectional view of

[0021] Figure 6 Shows Figure 2 A schematic diagram of the structure of the interlocking parts in FIG.

[0022] Figure 7 Shows Figure 2 Schematic diagram of the structure of the push rod.

[0023] The above drawings include the following reference numerals:

[0024] 10. Shell; 20. First key assembly; 21. Locking groove; 22. Main body; 23. Key blade; 24. Avoidance groove; 30. Second key assembly; 40. Interlocking member; 41. Receiving hole; 50. Rolling member; 60. Authorization assembly; 61. Authorization member; 62. Authorization rod; 63. Reset member; 70. Drive assembly; 71. Drive member; 72. Push rod; 721. Extending arm; 722. Boss; 73. Screw rod; 74. Nut; 80. Button; 90. Induction coil. DETAILED DESCRIPTION

[0025] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0026] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0027] In the present invention, unless otherwise specified, the directional words used, such as "up, down, top, bottom", usually refer to the directions shown in the drawings, or to the components themselves in the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "inside and outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directional words are not used to limit the present invention.

[0028] In order to solve the problem in the prior art that keys are inconvenient to carry and use, the utility model provides a double-key unlocking device.

[0029] like Figures 1 to 7 A dual-key unlocking device shown in the figure includes a shell 10, a first key assembly 20, a second key assembly 30 and an interlocking member 40. The first key assembly 20 is movably arranged in the shell 10, and has a state of being accommodated in the shell 10 and a state of being extended out of the shell 10; the second key assembly 30 is movably arranged in the shell 10, and has a state of being accommodated in the shell 10 and a state of being extended out of the shell 10; the interlocking member 40 is movably arranged between the first key assembly 20 and the second key assembly 30, and when one of the first key assembly 20 and the second key assembly 30 switches to the state of extending out of the shell 10, it drives the interlocking member 40 to move, and the interlocking member 40 extends into and locks the other of the first key assembly 20 and the second key assembly 30.

[0030] In this embodiment, a first key assembly 20 and a second key assembly 30 are simultaneously arranged in the shell 10, so that the dual-key unlocking device has two or more keys at the same time. Compared with the traditional method of managing each key separately, the size of the dual-key unlocking device can be greatly reduced, making it easier to carry and use. At the same time, in order to ensure the effectiveness of management, an interlocking member 40 is also provided. The interlocking member 40 can cooperate with the corresponding key assembly as needed to lock the unused key assembly. Specifically, under normal circumstances, both key assemblies are stored in the housing 10. At this time, the interlocking member 40 neither locks the first key assembly 20 nor the second key assembly 30, and both key assemblies can be normally extended. When one of the key assemblies needs to be used, taking the use of the first key assembly 20 as an example, the first key assembly 20 is switched to a state of extending from the housing 10. In this process, the first key assembly 20 drives the interlocking member 40 to move, so that the interlocking member 40 extends into the second key assembly 30. At this time, the movement of the second key assembly 30 is locked by the interlocking member 40, so that the second key assembly 30 cannot move, thereby locking the position of the second key assembly 30. In this way, the effect of the second key assembly 30 being unable to be used when the first key assembly 20 is used is achieved, that is, only one of the two key assemblies can be used for unlocking, and one key assembly is taken out while the other key assembly remains stored, thereby achieving effective management of the dual-key unlocking device while achieving the aforementioned reduction in overall volume. On the one hand, the above-mentioned arrangement enables a dual-key unlocking device to accommodate two keys at the same time, thereby reducing the space required for storing multiple keys, reducing the overall footprint of multiple keys, and facilitating carrying and use. On the other hand, it ensures effective management of keys, avoids management conflicts, and ensures that only one key can be used, preventing two key components from being taken out at the same time to obtain authorization to illegally open the lock, thereby ensuring security.

[0031] like Figure 2 and Figure 3 As shown, in this embodiment, the interlocking member 40 and the two key assemblies are locked by concave-convex matching. Specifically, the first key assembly 20 and the second key assembly 30 both have a locking groove 21, and the interlocking member 40 has a plurality of locking ends that match the locking groove 21. Since two key assemblies are provided in this embodiment, there are also two locking ends, and the two locking ends are respectively located at the two ends of the interlocking member 40. When the first key assembly 20 and the second key assembly 30 are both in a state of being stored in the housing 10, there is a movement gap between the locking groove 21 and the locking end of the first key assembly 20 and the second key assembly 30. At this time, although the locking end is located in the locking groove 21, only a small part of it is located in the locking groove 21, so that the locking end will not block the movement of the locking groove 21, so that the interlocking member 40 will not affect the movement of the two key assemblies. When one of the first key assembly 20 and the second key assembly 30 switches to a state of extending out of the shell 10, the movement of the key assembly in the switched state will push the interlocking member 40 to move, so that the locking end of the interlocking member 40 at one end will exit the locking groove 21 under the action of the locking groove 21 of the key assembly, and the locking end at the other end will further extend into the locking groove 21 of the other of the first key assembly 20 and the second key assembly 30, thereby hindering the movement of the other key assembly, so that the other key assembly is locked.

[0032] The above process takes the switching of the first key assembly 20 to extend out of the shell 10 as an example. When the first key assembly 20 switches to the state of extending out of the shell 10, the locking groove 21 of the first key assembly 20 squeezes the locking end corresponding to the interlocking part 40. Since there is a movement gap between the interlocking part 40 and the locking groove 21 of the second key assembly 30 at this time, the interlocking part 40 can move, and the interlocking part 40 can withdraw from the locking groove 21 of the first key assembly 20, and the corresponding locking end of the second key assembly 30 will further extend into the locking groove 21 of the second key assembly 30. Due to the obstruction of the outer side of the first key assembly 20, the interlocking part 40 has no space to move, so that the interlocking part 40 remains in the locking groove 21 of the second key assembly 30, thereby locking the position of the second key assembly 30, so that the second key assembly 30 cannot switch states.

[0033] In this embodiment, both the first key assembly 20 and the second key assembly 30 can be rotatably arranged, which has the advantages of small size, strong protection, and convenient carrying. The interlocking member 40 is located between the first key assembly 20 and the second key assembly 30. Correspondingly, the locking grooves 21 on the first key assembly 20 and the second key assembly 30 are also relatively arranged, so as to cooperate with the interlocking member 40 therebetween. At the same time, the moving trajectory of the interlocking member 40 is perpendicular to the rotation axis of the first key assembly 20 and the second key assembly 30. The moving trajectory of the interlocking member 40 can be roughly along the radial direction of the key assembly, or it can have a certain angle with the radial direction of the key assembly. It can be moved in a straight line or in an arc, as long as it can achieve cooperation with the two key assemblies. In this way, when any key assembly rotates, the locking groove 21 on it can push the interlocking member 40 toward the other key assembly, thereby realizing the locking of the other key assembly.

[0034] like Figure 6 As shown, the interlocking piece 40 of this embodiment is a sheet-like structure with a certain length, and a sharp corner is respectively provided at both ends in the length direction, and the sharp corner serves as a locking end. The locking groove 21 is also set as an arc groove, so that the locking groove 21 can push out the locking end smoothly.

[0035] like Figure 2 and Figure 6 As shown, the dual-key unlocking device of this embodiment also includes a rolling member 50, which is arranged between the interlocking member 40 and the shell 10. More specifically, the rolling member 50 is a steel ball, which is located between the side of the interlocking member 40 with a larger area and the shell 10. The side of the interlocking member 40 with a larger area and the shell 10 can be provided with a receiving hole 41 for accommodating the rolling member 50. In this way, rolling friction is formed between the interlocking member 40 and the rolling member 50, and between the rolling member 50 and the shell 10, thereby reducing the friction between the interlocking member 40 and the shell 10 when it moves, ensuring that the interlocking member 40 can move smoothly, thereby making the interlocking effect more stable.

[0036] In this embodiment, the dual-key unlocking device further includes an authorization component 60 and a drive component 70. The first key component 20 and the second key component 30 are both provided with the authorization component 60. The authorization component 60 is movably provided and has an authorized state and an unauthorized state, so that the two become authorized keys and can cooperate with the authorized pins and other components in the lock. The drive component 70 has a movably provided authorization end, and there are multiple authorization ends, which correspond to the first key component 20 and the second key component 30 respectively. In this embodiment, two authorization ends are provided, and the two authorization ends are used to cooperate with the two key components respectively. When the first key assembly 20 or the second key assembly 30 is in the state of extending into the housing 10, there is no relationship between the authorization assembly 60 therein and the authorization end, and even if the authorization end moves at this time, it will not affect the authorization assembly 60. When the first key assembly 20 or the second key assembly 30 switches to the state of extending out of the housing 10, its rotation makes the internal authorization assembly 60 located on the movement path of the corresponding authorization end. At this time, the authorization assembly 60 drives the authorization end to move after confirming the identity of the lock, and the corresponding authorization end can drive the authorization assembly 60 to switch to the authorization state, thereby realizing the authorized unlocking of the lock. The corresponding authorization end mentioned here refers to the authorization end that corresponds to the key assembly switched to extend out of the housing 10.

[0037] The structures of the first key assembly 20 and the second key assembly 30 of this embodiment are basically the same. Taking the first key assembly 20 as an example, the first key assembly 20 includes a main body 22 and a key blade 23, wherein the main body 22 is the main part and the main part of rotation. A torsion spring, a button 80 and other components can be provided between the main body 22 and the housing 10 as needed to control the rotation of the first key assembly 20, thereby realizing the state switching. The key blade 23 is connected to the main body 22 and moves synchronously. The key blade 23 is provided with a tooth-shaped groove and other structures for cooperating with the lock to realize unlocking. The main difference between the first key assembly 20 and the second key assembly 30 is that the types and shapes of the unlocking groove and other structures of the key blade 23 are different. When the main body 22 rotates, the key blade 23 rotates together with the main body 22. An opening is provided on the side of the housing 10, so that the key blade 23 can be extended from the opening or retracted into the housing 10. The authorization component 60 is movably arranged in the key blade 23 and can move along the length direction of the key blade 23. Specifically, a slide groove is provided in the key blade 23 along the length direction, and a part of the authorization component 60 is accommodated in the slide groove, and the part of the authorization component 60 extending out of the slide groove is located in the main body 22, and the authorization end is also located in the main body 22. In this way, when the main body 22 rotates, the main body 22 drives the authorization component 60 to rotate together, so that the authorization component 60 rotates to the movement path of the authorization end. At this time, the movement of the authorization end can push one end of the authorization component 60, thereby driving the authorization component 60 to switch to the authorization state, thereby realizing the authorized unlocking of the lock.

[0038] like Figures 2 to 5 As shown, the driving assembly 70 of this embodiment includes a driving member 71 and a push rod 72. The driving member 71 can be a cylinder, a motor, a solenoid or other components. The push rod 72 is driven and connected to the driving member 71. The push rod 72 of this embodiment is movable. Therefore, when the driving member 71 is a cylinder, the push rod 72 can be directly connected to the driving member 71. When the driving member 71 is a motor, a transmission member can be provided between the driving member 71 and the push rod 72. For example, the driving member 71 of this embodiment adopts a motor. The transmission member adopts a screw-nut structure. The screw 73 is connected to the motor. The nut 74 is embedded in the push rod 72. The nut 74 and the screw 73 are threadedly matched, so that the rotation of the motor is converted into the movement of the push rod 72 through the cooperation between the screw-nut structure. The push rod 72 has a plurality of extending arms 721, which respectively cooperate with the first key assembly 20 and the second key assembly 30. Since the present embodiment is provided with two key assemblies and two authorization assemblies 60, two extending arms 721 are provided, and the two extending arms 721 respectively cooperate with the authorization assemblies 60 in the two key assemblies. In this way, one driving assembly 70 can cooperate with the two key assemblies at the same time, thereby further simplifying the space arrangement and making the structure more concise. The end of the extending arm 721 has a boss 722, which is perpendicular to the length of the push rod 72. In this way, the extending arm 721 can be located at the side of the main body 22, and the boss 722 can extend into the main body 22 of the first key assembly 20 or the second key assembly 30, so as to cooperate with the authorization assembly 60. In this way, the boss 722 has the aforementioned authorization end.

[0039] like Figure 2 and Figure 7 As shown, the push rod 72 of this embodiment is in a concave shape, with a nut 74 embedded at the bottom, and two branches at the top are two extending arms 721, which are respectively located at the side with a larger area of ​​the main body 22, and the protruding column 722 extends from the side with a larger area of ​​the main body 22 into the main body 22, so as to cooperate with the authorization component 60. Of course, the specific structure of the push rod 72 can also be adjusted as needed, and is not limited to the structure of this embodiment.

[0040] like Figure 3 and Figure 5As shown, the authorization assembly 60 of this embodiment includes an authorization member 61, an authorization rod 62 and a reset member 63 for unlocking the lock. The authorization member 61 can be made of a structure such as a magnetic steel, and is movably arranged in the part of the first key assembly 20 or the second key assembly 30 extending out of the housing 10, that is, movably arranged in the key blade 23; the authorization rod 62 is movably arranged in the first key assembly 20 or the second key assembly 30, and a part of the authorization rod 62 is located in the key blade 23, so as to abut against the authorization member 61, so as to drive the authorization member 61 to move, thereby achieving the effect of authorizing the magnetic pin of the lock to unlock, and the other part of the authorization rod 62 is located in the main body 22, which is the part that cooperates with the authorization end of the push rod 72. When the first key assembly 20 or the second key assembly 30 is switched to the state of extending out of the housing 10, the authorization rod 62 is located on the movement path of the authorization end. At this time, the driving member 71 can be actuated to enable the authorization end to drive the authorization member 61 to move by pushing the authorization rod 62, so that the authorization member 61 moves in the direction close to the lock, thereby achieving the authorized unlocking of the lock. The reset member 63 can be a spring or other component, which abuts against the authorization member 61. In this embodiment, the reset member 63 is arranged at one end of the authorization member 61 away from the authorization rod 62, so that the reset member 63 provides a reset force for the authorization member 61 to move to an unauthorized state, so that after the authorization end is reset, the authorization member 61 is automatically reset under the action of the reset member 63.

[0041] like Figure 5 As shown, in this embodiment, the first key assembly 20 and the second key assembly 30 have an avoidance groove 24, the authorization end is located in the avoidance groove 24, and the avoidance groove 24 cooperates with the authorization end. Since two authorization ends are provided in this embodiment, the main body 22 of the first key assembly 20 and the second key assembly 30 both have an avoidance groove 24. When the first key assembly 20 or the second key assembly 30 moves, the authorization end, that is, the boss 722 moves relative to the avoidance groove 24. The substantially moving part is the main body 22, and the end of the authorization rod 62 away from the authorization member 61 is also located in the avoidance groove 24. In this way, when the first key assembly 20 or the second key assembly 30 switches to the state of extending out of the housing 10, the rotation of the main body 22 causes the boss 722 to move in the avoidance groove 24, so that the authorization rod 62, which was not originally located on the movement path of the authorization end, changes to the movement path of the authorization end. At this time, the action of the driving assembly 70 can make the authorization end approach the authorization rod 62 along the avoidance groove 24 until the authorization rod 62 is pushed to realize the switching of the authorization assembly 60 to the authorization state. The arrangement of the avoidance groove 24 controls the movement of the authorization rod 62 and the authorization end, thereby ensuring the accuracy of the cooperation between the two and avoiding misalignment.

[0042] Taking into account that the movement trajectories of the authorization rod 62 and the authorization end are not completely consistent, the avoidance groove 24 of this embodiment is not a regular straight line, arc shape, etc., but is set based on the movement trajectories of the authorization rod 62 and the authorization end. Specifically, the avoidance groove 24 of this embodiment includes a first section, a second section, and a third section connected in sequence. A part of the authorization rod 62 is located in the first section. Considering that the movement trajectory of the authorization rod 62 is the axis of the key blade 23, which is a straight line, the first section is set as a straight section to match the movement of the authorization rod 62; the second section is an intermediate section, and the boss 722 is located in the second section when the main body 22 rotates. Since the main body 22 rotates in a circle, the second section is set as a circular arc section; and considering that when the main body 22 rotates, the boss 722 is initially located in the third section, the third section is also set as an arc section, but unlike the second section, when the first key assembly 20 or the second key assembly 30 rotates to switch states, the first key assembly 20 or When the second key assembly 30 is in the state of being stored in the shell 10 and the authorization assembly 60 is in operation, the authorization end has the ability to move within the third section and relative to the third section. That is to say, for the key assembly that is locked by the interlocking member 40 and does not rotate, since the push rod 72 will also drive the corresponding boss 722 of the key assembly to move when it moves, the third section needs to allow the boss 722 to rotate as well as move. Therefore, the width of the third section can be increased accordingly compared to the first and second sections to accommodate various movements of the boss 722. Alternatively, the overall width of the three sections of the give way slot can be increased, as long as it can ensure that the linear movement of the boss 722 within the third section and the rotation relative to the third section can be carried out smoothly.

[0043] Optionally, the dual-key unlocking device may also be provided with components such as an induction coil 90 at the housing 10 as required, and the induction coil 90 may cooperate with a code chip in the lock to realize functions such as identity recognition.

[0044] The operation process of using the dual-key unlocking device of this embodiment is as follows:

[0045] By pressing the button 80, the first key assembly 20 rotates under the action of the torsion spring, and its key blade 23 is exposed. At the same time, the locking groove 21 on its main body 22 pushes the interlocking member 40 to be inserted into the locking groove 21 of the main body 22 of the second key assembly 30. At this time, even if the button 80 of the second key assembly 30 is pressed, the main body 22 is restricted by the interlocking member 40 and cannot rotate, and the second key assembly 30 remains in the storage shell 10.

[0046] Insert the key blade 23 of the first key assembly 20 into the lock, and pair the induction coil 90 with the code chip on the lock for identity recognition. After the pairing is successful, the motor drives the screw rod 73 to rotate, and the screw rod 73 drives the nut 74 to move linearly, thereby driving the push rod 72 to move linearly, and the protrusion 722 of the push rod 72 pushes the authorization rod 62 and the authorization member 61 in the key blade 23 to move in the direction close to the lock until they cooperate with the magnetic pin in the lock, and the lock is authorized to unlock. During the movement of the push rod 72, since the second key assembly 30 remains in the storage state, the corresponding protrusion 722 will move linearly in the third section of the avoidance groove 24. Since the width of the third section is wide enough, the linear movement of the protrusion 722 will not be hindered.

[0047] After the lock is unlocked, the motor reverses to drive the screw rod 73, the nut 74 and the push rod 72 to return to the initial position. The authorization rod 62 and the authorization member 61 are also reset to the initial position under the action of the reset member 63. The button 80 of the first key assembly 20 is pressed to rotate the key blade 23 back into the housing 10.

[0048] It should be noted that, the multiple in the above embodiments refers to at least two.

[0049] From the above description, it can be seen that the above embodiments of the utility model achieve the following technical effects:

[0050] 1. Solve the problem that the key in the prior art is inconvenient to carry and use;

[0051] 2. Compared with the traditional method of managing each key separately, the size of the dual-key unlocking device can be greatly reduced, making it easier to carry and use;

[0052] 3. When one key component is taken out, the other key component is kept in storage, ensuring effective key management and preventing two key components from being taken out at the same time to obtain authorization to illegally open the lock, thus ensuring security;

[0053] 4. The two key components share the same housing, drive components and other parts, which effectively simplifies the space layout and has a simple structure.

[0054] Obviously, the embodiments described above are only some embodiments of the utility model, not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0055] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0056] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0057] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A dual-key unlocking device, characterized in that: include: Housing (10); a first key assembly (20), the first key assembly (20) being movably disposed in the housing (10) and having a state of being accommodated in the housing (10) and a state of being extended out of the housing (10); a second key assembly (30), the second key assembly (30) being movably disposed in the housing (10) and having a state of being accommodated in the housing (10) and a state of being extended out of the housing (10); An interlocking piece (40) is movably arranged between the first key assembly (20) and the second key assembly (30), and when one of the first key assembly (20) and the second key assembly (30) switches to a state of extending out of the housing (10), the interlocking piece (40) is driven to move, and the interlocking piece (40) extends into and locks the other of the first key assembly (20) and the second key assembly (30).

2. The dual-key unlocking device according to claim 1, characterized in that: The first key assembly (20) and the second key assembly (30) both have a locking groove (21), and the interlocking member (40) has a plurality of locking ends that cooperate with the locking groove (21). When the first key assembly (20) and the second key assembly (30) are both in a state of being accommodated in the housing (10), there is a movement gap between the locking groove (21) and the locking ends of both the first key assembly (20) and the second key assembly (30). When one of the first key assembly (20) and the second key assembly (30) switches to a state of extending out of the housing (10), the interlocking member (40) is pushed to move, and the locking end of the interlocking member (40) extends into the locking groove (21) of the other of the first key assembly (20) and the second key assembly (30) and hinders the movement of the first key assembly (20) or the second key assembly (30).

3. The dual-key unlocking device according to claim 1, characterized in that: The first key assembly (20) and the second key assembly (30) are both rotatably arranged, the interlocking member (40) is located between the first key assembly (20) and the second key assembly (30), and the moving trajectory of the interlocking member (40) is perpendicular to the rotation axes of the first key assembly (20) and the second key assembly (30).

4. The dual-key unlocking device according to claim 1, characterized in that: The dual-key unlocking device further comprises a rolling member (50), wherein the rolling member (50) is arranged between the interlocking member (40) and the housing (10), and rolling friction is formed between the interlocking member (40) and the rolling member (50), and between the rolling member (50) and the housing (10).

5. The dual-key unlocking device according to any one of claims 1 to 4, characterized in that: The dual-key unlocking device also includes: An authorization component (60), the authorization component (60) being arranged inside the first key component (20) and the second key component (30), the authorization component (60) being movably arranged and having an authorized state and an unauthorized state; A drive assembly (70), wherein the drive assembly (70) has movable authorization ends corresponding to the first key assembly (20) and the second key assembly (30), respectively; when the first key assembly (20) or the second key assembly (30) is switched to a state of extending out of the housing (10), the authorization assembly (60) is located on a movement path of the corresponding authorization end, and the corresponding authorization end moves and drives the authorization assembly (60) to switch to the authorization state.

6. The dual-key unlocking device according to claim 5, characterized in that: The first key assembly (20) and the second key assembly (30) comprise a main body (22) and a key blade (23), wherein the key blade (23) is connected to the main body (22) and moves synchronously, and the authorization assembly (60) is movably arranged in the key blade (23), one end of the authorization assembly (60) is located in the main body (22), the authorization end is located in the main body (22), and the authorization assembly (60) is driven to switch to the authorization state by pushing one end of the authorization assembly (60).

7. The dual-key unlocking device according to claim 5, characterized in that: The drive assembly (70) comprises: A driving member (71); A push rod (72), wherein the push rod (72) is connected to the driving member (71) and moves under the drive of the driving member (71), wherein the push rod (72) has a plurality of extending arms (721), wherein the extending arms (721) respectively cooperate with the first key assembly (20) and the second key assembly (30), wherein the extending arms (721) have a convex column (722), wherein the convex column (722) is located in the first key assembly (20) or the second key assembly (30) and has the authorization end.

8. The dual-key unlocking device according to claim 5, characterized in that: The authorization component (60) comprises: an authorization member (61) for unlocking the lock, the authorization member (61) being movably disposed in a portion of the first key assembly (20) or the second key assembly (30) extending out of the housing (10); an authorization rod (62), the authorization rod (62) being movably arranged in the first key assembly (20) or the second key assembly (30) and abutting against the authorization member (61); when the first key assembly (20) or the second key assembly (30) is switched to a state of extending out of the housing (10), the authorization rod (62) is located on a movement path of the authorization end, and the authorization end drives the authorization member (61) to move by pushing the authorization rod (62); A reset member (63) is in contact with the authorization member (61) and provides a reset force for the authorization member (61) to move to an unauthorized state.

9. The dual-key unlocking device according to claim 8, characterized in that: The first key assembly (20) and the second key assembly (30) have an avoidance groove (24), the authorization end is located in the avoidance groove (24), and when the first key assembly (20) or the second key assembly (30) moves, the authorization end moves relative to the avoidance groove (24), and an end of the authorization rod (62) away from the authorization member (61) is located in the avoidance groove (24).

10. The dual-key unlocking device according to claim 9, characterized in that: The avoidance groove (24) comprises a first section, a second section and a third section connected in sequence, the first section is a straight section, a part of the authorization rod (62) is located in the first section, the second section is an arc section, and the third section is an arc section. When the first key assembly (20) or the second key assembly (30) is in a rotation switching state, the first key assembly (20) or the second key assembly (30) is in a state of being stored in the housing (10) and the authorization assembly (60) is in motion, the authorization end has a movement located in the third section and relative to the third section.

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