Intelligent key and intelligent lock for well lid

Abstract

The embodiment of the utility model discloses an intelligent key and an intelligent lock for a well lid, a spring bolt is inserted into a lock hole, and then a magnetic moving part can push the spring bolt to rotate by utilizing the characteristic that a magnetic lock control part and a magnetic moving part are opposite in magnetism, so that the spring bolt is converted into a horizontal state from a vertical state in a shell, and at the moment, the shell is rotated, and the spring bolt is locked. And in the rotating process of the spring bolt, thrust can be formed on the locking assembly, the locking end of the locking assembly is made to retreat from the locking groove of the well lid, and therefore unlocking of the well lid is completed. When the magnetic force between the magnetic lock control piece and the magnetic moving piece disappears, the spring bolt is reset to the vertical state from the horizontal state and withdrawn into the shell by utilizing the reset function of the second reset assembly, the thrust borne by the locking assembly disappears, and under the action of the first reset assembly, the locking assembly is reset, so that the locking end is inserted into the locking groove of the well lid, and the well lid is locked. And locking of the well lid is completed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of intelligent keys and intelligent locks for manhole covers, in particular to an intelligent key and an intelligent lock for a manhole cover. BACKGROUND

[0002] As an indispensable part of urban road construction, manhole covers are widely used in municipal, telecommunications, power and other fields. The main functions are to protect road safety, facilitate maintenance and repair, etc. However, the traditional management mode of manhole covers has many drawbacks. On the one hand, the manhole cover is often directly placed on the wellhead, and there is no effective locking device, which leads to the fact that the manhole cover can be opened at will, and there is a great risk of safety and loss of the manhole cover. This not only affects the normal operation of the city, but also may cause safety hazards to pedestrians and vehicles. On the other hand, the ordinary lock and key structure on the market is relatively simple, easy to be imitated, poor in safety, and difficult to meet the high safety requirements of manhole cover management. CONTENT OF THE UTILITY MODEL

[0003] The embodiments of the present application provide an intelligent key and an intelligent lock for a manhole cover to improve the problem that the manhole cover has no locking device, which leads to the fact that the manhole cover can be opened at will, and there is a great risk of safety and loss of the manhole cover.

[0004] In a first aspect, the embodiments of the present application provide an intelligent key for a manhole cover, which is used to close and open the manhole cover in cooperation with an intelligent lock arranged on the manhole cover. The intelligent key comprises a housing, a magnetic lock control, a magnetic moving part, a second reset assembly and a lock tongue. The magnetic lock control, the magnetic moving part and the second reset assembly are arranged in the housing. The magnetic end of the magnetic lock control is located on one side of the moving direction of the magnetic moving part. The magnetic lock control and the magnetic moving part are opposite in magnetism. The second reset assembly is used to reset the magnetic moving part. The lock tongue is slidably connected with one end of the magnetic moving part away from the magnetic lock control, so that the lock tongue can rotate with the linear movement of the magnetic moving part. The lock tongue is used to be inserted into the lock hole of the intelligent lock and drive the locking end of the locking assembly of the intelligent lock to exit the lock slot of the manhole cover.

[0005] In some embodiments of the present application, the housing is in the shape of T, comprising a horizontal sub-housing and a vertical sub-housing which are in communication with each other. The magnetic lock control is arranged in the horizontal sub-housing. The magnetic moving part and the second reset assembly are arranged in the vertical sub-housing. The magnetic moving part can move along the vertical direction of the vertical sub-housing under the action of the second reset assembly or the magnetic lock control, so as to drive the lock tongue to rotate out of the vertical sub-housing or rotate into the vertical sub-housing.

[0006] In some embodiments of the present application, the second reset assembly comprises a fixing ring and a third elastic member, the fixing ring and the third elastic member are sleeved on the magnetic moving member, and the third elastic member is located between the fixing ring and the end of the magnetic moving member away from the lock tongue.

[0007] The transverse sub-housing is provided with a manual button, which is aligned with the switch button of the magnetic lock control and used to open or close the magnetism of the magnetic lock control.

[0008] In some embodiments of the present application, the lock tongue is rotatably arranged in the vertical sub-housing and formed with a guide arc surface, and the end of the magnetic moving member away from the magnetic lock control can be in contact with the guide arc surface, so that the lock tongue is driven to rotate by the magnetic moving member, and the magnetic moving member can slide on the guide arc surface.

[0009] When the magnetism of the magnetic lock control is turned on, repulsion is generated between the magnetic moving member and the magnetic lock control, and the repulsion is greater than the elastic force of the third elastic member, so that the magnetic moving member drives the lock tongue to rotate from the vertical state to the horizontal state, and the two ends of the lock tongue in the horizontal state extend to the outside of the vertical sub-housing.

[0010] In some embodiments of the present application, the lock tongue comprises a limiting portion located on one side of the guide arc surface.

[0011] In some embodiments of the present application, the smart key further comprises a rechargeable power supply, a main control circuit board and an indicator light, the rechargeable power supply, the indicator light and the main control circuit board are arranged in the housing, and a part of the indicator light extends to the outside of the housing, the indicator light, the main control circuit board and the magnetic lock control are electrically connected with the rechargeable power supply, and the indicator light and the magnetic lock control are electrically connected with the main control circuit board.

[0012] In the second aspect, the embodiments of the present application provide a smart lock for a manhole cover, which is arranged on the manhole cover and matched with the smart key for the manhole cover in the first aspect to close and open the manhole cover, the smart lock comprises a lock seat, a locking assembly and a first reset assembly, the lock seat is provided with a lock hole, the locking assembly and the first reset assembly are arranged on the lock seat, the locking end of the locking assembly is used to be inserted into or withdrawn from the lock slot of the manhole cover to realize the locking or unlocking of the manhole cover, the end of the locking assembly away from the locking end is connected with the first reset assembly, and the first reset assembly is used to reset the locking assembly.

[0013] The locking assembly comprises a locking rod and a motion transmission plate, the locking rod is fixedly connected with the motion transmission plate, when the lock tongue is inserted into the lock hole and rotated, the lock tongue extrudes the motion transmission plate to move towards a first direction, so that the locking end of the locking rod retreats into the lock seat, when the lock tongue is retracted into the shell, the first reset assembly resets the locking rod, so that the locking end of the locking rod extends out of the lock seat.

[0014] In some embodiments of the present application, the first reset assembly comprises a reset rod, a first elastic member, a second elastic member, a limiting nut and a reset block, the reset rod and the reset block are both slidingly arranged in the lock seat, the first elastic member is sleeved on the reset rod, the second elastic member and the limiting nut are both sleeved on the locking rod, and the limiting nut is fixed to the lock seat, the locking rod can move relative to the limiting nut, the second elastic member is located between the limiting nut and the motion transmission plate, one side of the reset block is connected with one end of the locking rod away from the locking end, and the other side is in contact with one end of the reset rod, and the surface of the reset block in contact with the reset rod is a bevel, so that when the reset block moves towards the reset rod, the reset rod is extruded by the reset block, and the first elastic member is extruded by the reset rod.

[0015] In some embodiments of the present application, the hole diameter of the lock hole is greater than the maximum width of the lock tongue when the lock tongue is inserted into the lock hole.

[0016] Therefore, the smart key and the smart lock for the well lid disclosed by the embodiments of the present application can prevent the well lid from being opened and taken away at will, and reduce the risk of loss and safety accidents of the well lid. In detail, the lock tongue is inserted into the lock hole, and then the magnetic lock control and the magnetic moving part are used to make the magnetic moving part rotate the lock tongue, so that the lock tongue is converted from the vertical state in the shell to the horizontal state. At this time, the shell is rotated to make the lock tongue rotate synchronously. In the rotating process of the lock tongue, a pushing force is formed on the locking assembly, so that the locking end of the locking assembly exits the lock slot of the well lid, thereby completing the unlocking of the well lid. When the magnetic force between the magnetic lock control and the magnetic moving part disappears, the reset function of the second reset assembly is used to reset the lock tongue from the horizontal state to the vertical state, and the shell is retracted. The pushing force on the locking assembly disappears, and the locking assembly is reset under the action of the first reset assembly, so that the locking end is inserted into the lock slot of the well lid, thereby completing the locking of the well lid. The whole locking and unlocking process only needs to start and stop the magnetic lock control, and then a series of mechanical transmission structures can be used to achieve the locking and unlocking. Compared with the software control hardware structure in the related art, the structure and control mode of the present application are more simple and stable, consume less energy, and have lower cost. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments will be briefly introduced. Obviously, the drawings in the following description are only some of the embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor on the basis of these drawings.

[0018] Figure 1 A structure schematic view of a lock tongue of an intelligent key for a manhole cover provided by an embodiment of the present application is located in a shell.

[0019] Figure 2 A structure schematic view of a lock tongue of an intelligent key for a manhole cover provided by an embodiment of the present application is located in a shell.

[0020] Figure 3 A structure schematic view of a lock tongue of an intelligent key for a manhole cover provided by an embodiment of the present application is located in a shell.

[0021] Figure 4 A structure schematic view of a lock tongue of an intelligent key for a manhole cover provided by an embodiment of the present application is located in a shell.

[0022] Figure 5 A structure schematic view of an intelligent lock for a manhole cover provided by an embodiment of the present application.

[0023] Explanation of reference signs:

[0024] 1, intelligent lock; 11, lock seat; 12, locking assembly; 121, lock rod; 122, movement transmission plate; 13, first reset assembly; 131, reset rod; 132, first elastic member; 133, second elastic member; 134, limiting nut; 135, reset block; 14, lock hole; 2, intelligent key; 21, shell; 211, horizontal sub-shell; 212, vertical sub-shell; 22, magnetic lock control; 221, magnetic end; 23, magnetic moving member; 24, second reset assembly; 241, fixed ring; 242, third elastic member; 25, lock tongue; 251, guide arc surface; 252, limiting part; 26, hand control button; 27, rechargeable power supply; 28, indicator light; 29, main control circuit board. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be described clearly and completely in the following with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, and not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0026] In the description of the present application, it should be understood that the words "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can be explicitly or implicitly included one or more features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically limited.

[0027] Please refer to Figures 1 to 5 The embodiments of the present application provide a smart lock kit, which comprises a smart key matched with a smart lock arranged on a manhole cover, and the smart key and the smart lock are plugged together to close and open the manhole cover. The structure and matching relationship of the smart lock and the smart key will be described in detail below:

[0028] The smart lock 1 comprises a lock seat 11, a locking assembly 12 and a first reset assembly 13. The lock seat 11 is provided with a lock hole 14, and the locking assembly 12 and the first reset assembly 13 are arranged on the lock seat 11. The locking end of the locking assembly 12 is used to insert or withdraw the lock slot of the manhole cover to realize the locking or unlocking of the manhole cover. The end of the locking assembly 12 away from the locking end is connected with the first reset assembly 13, and the first reset assembly 13 is used to reset the locking assembly 12. The smart lock 1 is a pure mechanical structure design. When the manhole lock fails, the maintenance personnel can quickly locate the problem and repair it without the need for complex electronic equipment detection and maintenance process, which reduces the maintenance cost and time. In addition, compared with the electronic design of the smart lock, it is also not easy to be affected by the moisture and corrosion in the well, so as to cause the situation that the smart lock cannot be used normally.

[0029] The smart key 2 comprises a shell 21, a magnetic lock control 22, a magnetic moving part 23, a second reset assembly 24 and a lock tongue 25. The magnetic lock control 22, the magnetic moving part 23 and the second reset assembly 24 are arranged in the shell 21. The magnetic end 221 of the magnetic lock control 22 is located on one side of the moving direction of the magnetic moving part 23. The magnetic lock control 22 and the magnetic moving part 23 are opposite in magnetism. The second reset assembly 24 is used to reset the magnetic moving part 23. The lock tongue 25 is slidingly connected with the end of the magnetic moving part 23 away from the magnetic lock control 22, so that the lock tongue 25 can rotate with the linear movement of the magnetic moving part 23. The lock tongue 25 is used to insert the lock hole 14 and drive the locking end of the locking assembly 12 to withdraw the lock slot.

[0030] The technical scheme provided in the application sets the intelligent lock 1 on the well lid, cooperates the intelligent key 2 with the intelligent lock 1, realizes the opening and closing of the well lid, thereby preventing the well lid from being opened and taken away at will, and reducing the risk of loss of the well lid and safety accidents. In detail, the lock tongue 25 is inserted into the lock hole 14, then the magnetic lock control 22 and the magnetic moving piece 23 are opposite in magnetic property, so that the magnetic moving piece 23 can push the lock tongue 25 to rotate, thereby converting the lock tongue 25 from the vertical state in the shell 21 to the horizontal state, at this time, the shell 21 is rotated again to make the lock tongue 25 rotate synchronously, and the lock tongue 25 will form a pushing force on the locking assembly 12 in the rotating process, so that the locking end of the locking assembly 12 exits the lock slot of the well lid, thereby completing the unlocking of the well lid. When the magnetic force between the magnetic lock control 22 and the magnetic moving piece 23 disappears, the reset function of the second reset assembly 24 is used to reset the lock tongue 25 from the horizontal state to the vertical state, and the shell 21 is retracted, the pushing force on the locking assembly 12 disappears, and the locking assembly 12 is reset under the action of the first reset assembly 13, so that the locking end is inserted into the lock slot of the well lid, and the locking of the well lid is completed. The whole locking and unlocking process only needs to start and stop the magnetic lock control 22, and then a series of mechanical transmission structures can be realized. Compared with the software control hardware structure adopted in the related art, the structure and control mode of the application are more simple and stable, the energy consumption is lower, and the cost is lower.

[0031] In some embodiments, referring to Figure 5 , the locking assembly 12 includes a lock rod 121 and a motion transmission plate 122. The lock rod 121 is fixedly connected with the motion transmission plate 122, when the lock tongue 25 is inserted into the lock hole 14 and rotated, the lock tongue 25 extrudes the motion transmission plate 122 to move towards the first direction, so that the locking end of the lock rod 121 retreats into the lock seat 11, when the lock tongue 25 is retracted into the shell 21, the first reset assembly 13 resets the lock rod 121, so that the locking end of the lock rod 121 extends out of the lock seat 11. The first direction refers to the direction in which the motion transmission plate 122 moves away from the locking end.

[0032] Further, the first reset assembly 13 comprises a reset rod 131, a first elastic member 132, a second elastic member 133, a limiting nut 134 and a reset block 135. The reset rod 131 and the reset block 135 are both slidingly arranged in the lock seat 11, and the first elastic member 132 is sleeved on the reset rod 131. Exemplarily, two fixed plates are arranged on the lock seat 11, the reset rod 131 passes through the two fixed plates so that the reset rod 131 is arranged in a spaced manner with the lock seat 11, the reset rod 131 can move in a direction opposite to the two fixed plates, the first elastic member 132 is a spring, is arranged between the two fixed plates, and one end of the first elastic member 132 is fixed on one of the fixed plates and the other end is fixed on the reset rod 131. The reset rod 131 is perpendicular to the lock rod 121. The second elastic member 133 and the limiting nut 134 are both sleeved on the lock rod 121, and the limiting nut 134 is fixed on the lock seat 11, the lock rod 121 can move relative to the limiting nut 134, the second elastic member 133 is located between the limiting nut 134 and the motion transmission plate 122, one side of the reset block 135 is connected with an end of the lock rod 121 away from the locking end, and the other side is in contact with one end of the reset rod 131, and the surface of the reset block 135 in contact with the reset rod 131 is a slope, so that when the reset block 135 moves towards the reset rod 131, the reset rod 131 will be extruded by the reset block 135, and the first elastic member 132 will be extruded by the reset rod 131. Exemplarily, when the motion transmission plate 122 is pushed by the lock tongue 25, the lock rod 121 moves towards the reset rod 131, the locking end of the lock rod 121 exits the lock slot, and the lock rod 121 synchronously drives the reset block 135 to move towards the reset rod 131, because the reset block 135 is a slope, the reset rod 131 will gradually move towards a direction perpendicular to and away from the lock rod 121 along the slope, and in the moving process of the reset rod 131, the first elastic member 132 will be compressed, and in the moving process of the lock rod 121, the second elastic member 133 will also be compressed, at this time, both elastic members are in a compressed state and accumulate elastic potential energy. When the lock tongue 25 removes the pushing force on the motion transmission plate 122, the first elastic member 132 pushes the reset rod 131 to move towards a direction perpendicular to the lock rod 121, and pushes the reset block 135 to move towards the locking end, and then pushes the lock rod 121 to move towards the locking end of the lock rod 121, at the same time, the second elastic member 133 also restores the deformation, taking the limiting nut 134 as a fulcrum, pushes the motion transmission plate 122 to move towards the locking end, and then drives the lock rod 121 to move towards the locking end of the lock rod 121, so as to complete the automatic insertion of the locking end into the lock slot and realize the automatic locking of the smart lock 1.

[0033] In some embodiments, the hole diameter of the lock hole 14 is greater than the maximum width of the lock tongue 25 when the lock tongue 25 is inserted into the lock hole 14, where the maximum width refers to the maximum width of the portion of the lock tongue 25 passing through the lock hole 14, which is perpendicular to the vertical direction when the lock tongue 25 is in the vertical state. By limiting the hole diameter of the lock hole 14 to be greater than the maximum width of the lock tongue 25 when the lock tongue 25 is inserted into the lock hole 14, the hole diameter of the lock hole 14 can be increased as much as possible while ensuring that the lock tongue 25 can normally pass through the lock hole 14, so as to avoid the situation that the lock hole 14 is too small and is blocked by mud.

[0034] In some embodiments, referring to Figures 1 to 4 , the shell 21 is in a T shape and includes a horizontal sub-shell 211 and a vertical sub-shell 212 that are in communication with each other, the magnetic lock control 22 is arranged in the horizontal sub-shell 211, the magnetic moving piece 23 and the second reset assembly 24 are arranged in the vertical sub-shell 212, and the magnetic moving piece 23 can move in the vertical direction of the vertical sub-shell 212 under the action of the second reset assembly 24 or the magnetic lock control 22, so as to drive the lock tongue 25 to rotate out of or into the vertical sub-shell 212. The structure that the horizontal sub-shell 211 and the vertical sub-shell 212 are in communication is beneficial to the force borrowed by the rotation of the smart key 2, that is, when the end portion of the vertical sub-shell 212 away from the horizontal sub-shell 211 is inserted into the lock hole 14 and the lock tongue 25 is in the horizontal state, the smart key 2 needs to be rotated to rotate the lock tongue 25 on the surface of the lock seat 11, and the horizontal sub-shell 211 can provide a large torque to realize the rotation of the smart key 2 with a small force, so as to push the motion transmission plate 122.

[0035] It should be noted that the end portion of the vertical sub-shell 212 is provided with two opposite vertical strip-shaped through holes, which are arranged opposite to the side surface of the lock tongue 25, so that when the lock tongue 25 rotates in the vertical sub-shell 212, the two sides of the lock tongue 25 in the vertical direction can rotate to the horizontal state through the vertical strip-shaped through holes and extend to the outside of the vertical sub-shell 212.

[0036] In some embodiments, the second reset assembly 24 includes a fixed ring 241 and a third elastic member 242, both of which are sleeved on the magnetic moving piece 23, and the third elastic member 242 is located between the fixed ring 241 and the end of the magnetic moving piece 23 away from the lock tongue 25, so that the third elastic member 242 can be compressed and accumulate elastic potential energy when the magnetic moving piece 23 moves towards the lock tongue 25. The fixed ring 241 is fixedly connected with the vertical sub-housing 212 as the force point of the third elastic member 242. When the magnetic lock control 22 and the magnetic moving piece 23 repel each other by magnetic force, the magnetic moving piece 23 will move towards the lock tongue 25 due to the magnetic force, and the third elastic member 242 will be compressed. The end of the magnetic moving piece 23 will slide along the length direction of the lock tongue 25, and because the lock tongue 25 is rotationally arranged in the vertical sub-housing 212, the lock tongue 25 cannot move linearly, so the force acting on the magnetic moving piece 23 will be gradually transferred from the end of the lock tongue 25 to the middle of the lock tongue 25, causing the lock tongue 25 to rotate and change from the vertical state to the horizontal state, and the two ends of the lock tongue 25 extend to the outside of the vertical sub-housing 212 through the vertical strip-shaped through hole, facilitating the subsequent contact between the lock tongue 25 and the motion transmission plate 122. The third elastic member 242 here will accumulate elastic potential energy at this time, and when the magnetic force between the magnetic moving piece 23 and the magnetic lock control 22 disappears, the third elastic member 242 can pull the magnetic moving piece 23 to move towards the magnetic lock control 22 by elastic force, and one end of the magnetic moving piece 23 also slides from the middle of the lock tongue 25 towards the end of the lock tongue 25, cooperating to drive the lock tongue 25 to rotate from the horizontal state to the vertical state and be received in the vertical sub-housing 212, so that the subsequent smart key 2 can be pulled out of the lock hole 14.

[0037] In some embodiments, the horizontal sub-housing 211 is provided with a manual button 26, which is aligned with the switch button of the magnetic lock control 22, for turning on or off the magnetism of the magnetic lock control 22. It should be noted that the magnetic lock control 22 is a device that generates magnetism by power supply, which belongs to the prior art, and its specific structure will not be described here. By the manual button 26, the generation of magnetism of the magnetic lock control 22 can be controlled in real time, and then the extension and retraction of the lock tongue 25 can be controlled.

[0038] In some embodiments, the lock tongue 25 is rotatably arranged in the vertical sub-housing 212 and is formed with a guide arc surface 251, and the end of the magnetic moving piece 23 away from the magnetic lock control 22 can be in contact with the guide arc surface 251. For example, the middle or the position close to the middle of the lock tongue 25 is rotatably arranged in the vertical sub-housing 212 by a pin shaft. When the magnetic lock control 22 is magnetically opened, repulsion is generated between the magnetic moving piece 23 and the magnetic lock control 22, and the repulsion is greater than the elastic force of the third elastic piece 242, so as to overcome the elastic force of the third elastic piece 242, avoid the repulsion from pushing the magnetic moving piece 23 to move towards the direction of the lock tongue 25, and make the magnetic moving piece 23 drive the lock tongue 25 to rotate from the vertical state to the horizontal state, and the two ends of the lock tongue 25 extend to the outside of the vertical sub-housing 212 in the horizontal state. It also needs to be explained that when the lock tongue 25 rotates to the horizontal state, the lock tongue 25 will no longer rotate.

[0039] Further, the lock tongue 25 comprises a limiting portion 252 located at one side of the guide arc surface 251, which is used to ensure that the magnetic moving piece 23 will not continue to slide after acting on the middle or the position close to the middle of the lock tongue 25, and avoid the two ends of the lock tongue 25 not being in the horizontal state, which affects the stability.

[0040] In some embodiments, the smart key 2 further comprises a rechargeable power supply 27, a main control circuit board 29 and indicator lights 28, the rechargeable power supply 27, the indicator lights 28 and the main control circuit board 29 are all arranged in the housing 21, and a part of the indicator lights 28 extends out of the housing 21, the indicator lights 28, the main control circuit board 29 and the magnetic lock control 22 are all electrically connected with the rechargeable power supply 27, and the indicator lights 28 and the magnetic lock control 22 are all electrically connected with the main control circuit board 29. The rechargeable power supply 27 can be a rechargeable lithium sub-battery, the indicator lights 28 are mainly used to display various states of the smart key 2, for example, the indicator lights 28 have three, one of which is used to display whether the current main control circuit board 29 is powered on, one is used to display the Bluetooth pairing status of the smart key 2 and the manhole cover, and one is used to display the working status of the current magnetic lock control 22. Alternatively, one indicator light 28 is used to indicate the current power, one indicator light 28 is used to indicate the current charging status, and one indicator light 28 is used to indicate the current working status of the smart key 2. The main control circuit board 29 is provided with a Bluetooth module, which is used to pair with the Bluetooth information corresponding to the mobile communication device in which the operator's identity information has been recorded, so as to realize the authorized opening and closing of the smart key 2 and the manhole cover. For example, the operator's identity information has been recorded in a mobile communication device with Bluetooth function. When the operator operates the smart key 2 to try to open a certain manhole cover, the Bluetooth module on the main control circuit board 29 of the smart key 2 will actively search and try to pair with the mobile communication device in which the operator's identity information has been recorded. Only when the smart key 2 and the mobile communication device in which the operator's identity information has been recorded are successfully paired, the function of the manual control button 26 will be activated, allowing the operator to trigger the magnetic generation of the magnetic lock control 22 by pressing the manual control button 26, and then performing the unlocking operation of the manhole cover. Unauthorized keys trying to open the manhole cover are effectively prevented, and safety hazards are eliminated.

[0041] Further, the main control circuit board 29 is provided with a storage module for recording and storing the operation of the operator each time the manhole cover is opened or closed. For example, the storage module records and stores each time the operator opens or closes the manhole cover, which is convenient for later tracing of the manhole cover opening event.

[0042] The above has described the basic concept, and it is obvious that the above detailed disclosure is only an example and does not constitute a limitation on the present application for those skilled in the art. Although it is not explicitly stated here, those skilled in the art can make various modifications, improvements and corrections to the present application. Such modifications, improvements and corrections are suggested in the present application, so such modifications, improvements and corrections still belong to the spirit and scope of the exemplary embodiments of the present application.

[0043] Furthermore, this application uses specific terms to describe embodiments of the application. For example, "an embodiment," "one embodiment," and / or "some embodiments" refer to a particular feature, structure, or characteristic associated with at least one embodiment of the application. Therefore, it should be emphasized and noted that "an embodiment," "one embodiment," or "an alternative embodiment" mentioned twice or more in different locations in this specification do not necessarily refer to the same embodiment. In addition, certain features, structures, or characteristics in one or more embodiments of the application can be appropriately combined.

[0044] Similarly, it should be noted that, in order to simplify the description of the present application and thus aid in the understanding of one or more embodiments, the foregoing description of the embodiments of the present application sometimes combines multiple features into a single embodiment, drawing, or description thereof. However, this disclosure method does not imply that the subject matter of the present application requires more features than those mentioned in the claims. In fact, the embodiments contain fewer features than all the features of the single embodiments disclosed above.

[0045] For each patent, patent application, patent application publication, and other material such as articles, books, specifications, publications, and documents referenced in this application, the entire contents of that patent application are incorporated herein by reference, except for historical application documents that are inconsistent with or conflict with the content of this application, and documents that limit the broadest scope of the claims of this application (currently or subsequently appended to this application). It should be noted that if there are any inconsistencies or conflicts between the descriptions, definitions, and / or terminology used in the supplementary materials of this application and the content of this application, the descriptions, definitions, and / or terminology used in this application shall prevail.

[0046] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An intelligent key for a manhole cover for cooperating with an intelligent lock provided in the manhole cover to close and open the manhole cover, characterized in that, The intelligent key comprises a shell, a magnetic lock control, a magnetic moving part, a second reset assembly and a lock tongue, the magnetic lock control, the magnetic moving part and the second reset assembly are all arranged in the shell, a magnetic end of the magnetic lock control is located on one side of the moving direction of the magnetic moving part, the magnetic lock control and the magnetic moving part are opposite in magnetism, the second reset assembly is used for resetting the magnetic moving part, the lock tongue is slidably connected with one end of the magnetic moving part away from the magnetic lock control, so that the lock tongue can rotate with the linear movement of the magnetic moving part, and the lock tongue is used for being inserted into a lock hole of the intelligent lock and driving a locking end of a locking assembly of the intelligent lock to exit a lock slot of the well cover.

2. The smart key for a manhole cover according to claim 1, wherein The shell is in T shape and comprises a horizontal sub-shell and a vertical sub-shell which are communicated with each other, the magnetic lock control is arranged in the horizontal sub-shell, the magnetic moving part and the second reset assembly are arranged in the vertical sub-shell, and the magnetic moving part can move along the vertical direction of the vertical sub-shell under the action of the second reset assembly or the magnetic lock control, so as to drive the lock tongue to rotate out of or into the vertical sub-shell.

3. The smart key for a manhole cover according to claim 2, wherein The second reset assembly comprises a fixed ring and a third elastic member, the fixed ring and the third elastic member are both sleeved on the magnetic moving part, and the third elastic member is located between the fixed ring and one end of the magnetic moving part away from the lock tongue.

4. The smart key for a manhole cover according to claim 2, wherein A manual button is arranged on the horizontal sub-shell and is aligned with a switch button of the magnetic lock control, and is used for turning on or off the magnetism of the magnetic lock control.

5. The smart key for a manhole cover according to claim 3, wherein The lock tongue is rotatably arranged in the vertical sub-shell and is formed with a guide arc surface, one end of the magnetic moving part away from the magnetic lock control can be in contact with the guide arc surface, so that the lock tongue is driven by the magnetic moving part, and the magnetic moving part can slide on the guide arc surface; When the magnetism of the magnetic lock control is turned on, repulsion is generated between the magnetic moving part and the magnetic lock control, the repulsion is greater than the elastic force of the third elastic member, so that the magnetic moving part drives the lock tongue to rotate from a vertical state to a horizontal state, and the lock tongue extends to the outside of the vertical sub-shell at both ends in the horizontal state.

6. The smart key for a manhole cover according to claim 5, wherein The lock tongue comprises a limiting part located on one side of the guide arc surface.

7. The smart key for a manhole cover according to claim 1, wherein The intelligent key further comprises a rechargeable power supply, a main control circuit board and an indicator light, the rechargeable power supply, the indicator light and the main control circuit board are all arranged in the shell, and a part of the indicator light extends to the outside of the shell, the indicator light, the main control circuit board and the magnetic lock control are electrically connected with the rechargeable power supply, and the indicator light and the magnetic lock control are electrically connected with the main control circuit board.

8. An intelligent lock for a manhole cover, which is provided in a manhole cover and is inserted into the intelligent key for a manhole cover according to any one of claims 1 to 7 to close and open the manhole cover, characterized in that, The smart lock includes a lock base, a locking component, and a first reset component. The lock base has a lock hole. The locking component and the first reset component are both disposed on the lock base. The locking end of the locking component is used to insert into or exit the lock groove of the manhole cover to lock or unlock the manhole cover. The end of the locking component away from the locking end is connected to the first reset component. The first reset component is used to reset the locking component. The locking assembly includes a locking rod and a motion transmission plate. The locking rod is fixedly connected to the motion transmission plate. When the bolt is inserted into the lock hole and rotated, the bolt presses the motion transmission plate to move in a first direction, so that the locking end of the locking rod retracts into the lock seat. When the bolt is retracted into the housing, the first reset assembly resets the locking rod, so that the locking end of the locking rod extends out of the lock seat.

9. The intelligent lock for a manhole cover according to claim 8, wherein, The first reset assembly includes a reset rod, a first elastic element, a second elastic element, a limiting nut, and a reset block. The reset rod and the reset block are slidably disposed on the lock seat. The first elastic element is sleeved on the reset rod. The second elastic element and the limiting nut are both sleeved on the lock rod, and the limiting nut is fixed to the lock seat. The lock rod is movable relative to the limiting nut. The second elastic element is located between the limiting nut and the motion transmission plate. One side of the reset block is connected to the end of the lock rod away from the locking end, and the other side is in contact with one end of the reset rod. The surface of the reset block in contact with the reset rod is inclined so that when the reset block moves toward the reset rod, the reset rod will be squeezed by the reset block, and the first elastic element will be squeezed by the reset rod.

10. The intelligent lock for a manhole cover according to claim 8, wherein, The diameter of the keyhole is greater than the maximum width when the bolt is inserted into the keyhole.

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