Intelligent well lid lock

Abstract

The intelligent well lid lock comprises an operation assembly, a lock body, an unlocking and locking assembly, a clutch assembly and an authorization assembly, the operation assembly comprises a driving shaft rotationally installed on the lock body, the unlocking and locking assembly is rotationally installed on the lock body, and the clutch assembly comprises a first clutch piece, a second clutch piece and a first elastic piece; the first clutch piece is movably installed on the driving shaft in the axial direction of the driving shaft and is in transmission connection with the driving shaft, the second clutch piece is fixedly connected with the unlocking and locking assembly, and the first elastic piece is elastically installed between the first clutch piece and the second clutch piece so that the first clutch piece can be separated from the second clutch piece in a transmission mode under the action of the first elastic piece. The authorization assembly acts on the first clutch piece after being authorized to drive the first clutch piece to extrude the first elastic piece to overcome the effect of the first elastic piece, so that the first clutch piece is in transmission fit with the second clutch piece. According to the technical scheme, the internal structure of the intelligent well lid lock can be well protected against violent damage.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of intelligent lock, in particular to an intelligent well lid lock. BACKGROUND

[0002] With the development of urban construction, various pipelines are set in the city underground for laying urban power cables and communication cables, and shafts are set at the intersection or important nodes of underground pipelines to facilitate the laying and maintenance of cables in the pipelines. At the same time, in order to ensure the safety of the road personnel, a well lid and a well lid lock for locking the well lid are generally arranged on the shaft to prevent the well lid from being opened during non-task period, thereby causing the problem of out-of-control of the sewer management.

[0003] The intelligent well lid lock generally comprises an operation assembly and an authorization assembly, the authorization assembly has one or more electronic component modules for identity information verification, and the authorization assembly can obtain authorization only when the identity verification is passed, thereby providing the worker with the permission to operate the operation assembly. The worker rotates the operation assembly to realize the unlocking and locking of the well lid.

[0004] Before the authorization assembly obtains authorization, the operation assembly is relatively fixed and cannot be rotated. Therefore, if the operation assembly is forcibly twisted by external force, the internal structure of the intelligent well lid lock will be violently damaged, which easily leads to the failure of the function of the intelligent well lid lock. CONTENT OF THE UTILITY MODEL

[0005] The main purpose of the present application is to provide an intelligent well lid lock, which aims at the existing intelligent well lid lock, the operation assembly of which cannot be rotated before the authorization assembly obtains authorization, and the internal structure of the intelligent well lid lock is easily violently damaged if the operation assembly is forcibly twisted by external force.

[0006] To achieve the above purpose, the intelligent well lid lock provided by the present application comprises an operation assembly, a lock body, an unlocking and locking assembly, a clutch assembly and an authorization assembly. Wherein,

[0007] The operation assembly comprises a driving shaft rotatably installed on the lock body.

[0008] The unlocking and locking assembly is rotatably installed on the lock body.

[0009] The clutch assembly comprises a first clutch member, a second clutch member and a first elastic member. The first clutch member is movably installed on the driving shaft along the axial direction of the driving shaft and is in transmission connection with the driving shaft. The second clutch member is fixedly connected with the unlocking and locking assembly. The first elastic member is elastically installed between the first clutch member and the second clutch member, so that the first clutch member is in transmission separation with the second clutch member under the action of the first elastic member.

[0010] The authorization component, after authorization, acts on the first clutch to drive the first clutch to press the first elastic component, to overcome the action of the first elastic component, so that the first clutch and the second clutch are in transmission cooperation.

[0011] In some embodiments of the present application, one side of the first clutch towards the second clutch is provided with a first clutch part, and one side of the second clutch towards the first clutch is provided with a second clutch part.

[0012] The first clutch part is in transmission cooperation with the second clutch part under the action of the authorization component.

[0013] In some embodiments of the present application, the first clutch part comprises at least one clutch block, and the second clutch part comprises at least one clutch groove, the clutch block and the clutch groove are separated from each other under the action of the first elastic component, and the clutch block and the clutch groove are in plug-in cooperation under the action of the authorization component.

[0014] In some embodiments of the present application, a bottom wall of the clutch groove is provided with a locking hole, and the intelligent well lid lock further comprises a locking component, the locking component comprises an unlocking component, a locking pin and a second elastic component, the unlocking component is movably installed in the locking hole, and the locking pin is elastically installed in the lock body through the second elastic component.

[0015] When the clutch block and the clutch groove are separated from each other and the locking pin is aligned with the locking hole, the locking pin is in plug-in cooperation with the locking hole under the action of the second elastic component, to limit the rotation of the second clutch, and when the clutch block and the clutch groove are in plug-in cooperation, the clutch block abuts against the unlocking component to extrude the locking pin out of the locking hole to release the limitation on the second clutch.

[0016] In some embodiments of the present application, the authorization component comprises a control component and an authorization component, the authorization component is movably installed in the lock body along the axial direction of the drive shaft and located on the side of the first clutch away from the second clutch, and the control component is fixedly installed in the lock body, the control component controls the movement of the authorization component along the axial direction of the drive shaft towards the first clutch after authorization, to act on the first clutch.

[0017] In some embodiments of the present application, the authorization component is provided with a magnetic material part, the control component comprises an electromagnet, and the control component controls the movement of the authorization component along the axial direction of the drive shaft towards the first clutch by controlling the electromagnet to magnetically attract the magnetic material part after authorization.

[0018] In some embodiments of the present application, the first clutch element is further fixedly installed with a first magnetic element, the intelligent manhole cover lock further comprises an emergency unlocking key, the emergency unlocking key is provided with a second magnetic element, when the emergency unlocking key is placed in the lock body, the second magnetic element drives the first clutch element to press the first elastic element through the action of magnetic repulsion, so as to overcome the action of the first elastic element, so that the first clutch element is in transmission cooperation with the second clutch element.

[0019] In some embodiments of the present application, the operation assembly further comprises a handle, the handle is in rotational connection with the driving shaft, the handle has a first state of being attached to the upper surface of the lock body and a second state of being arranged at an angle with the upper surface of the lock body and being capable of driving the driving shaft to rotate under the action of external force.

[0020] In some embodiments of the present application, the intelligent manhole cover lock further comprises a wake-up detection assembly, the wake-up detection assembly is fixedly installed on the lock body and is in electrical connection with the authorization assembly, and the wake-up detection assembly is used to detect whether the handle is in the first state or the second state.

[0021] In some embodiments of the present application, the unlocking assembly comprises an output shaft and a handle, the output shaft is rotatably installed on the lock body, one end of the output shaft is fixedly connected with the second clutch element, the other end of the output shaft is in separable transmission connection with the handle, and the handle is further used to be in transmission connection with the unlocking mechanism.

[0022] In some embodiments of the present application, the second clutch element is provided with a limiting column, and the lock body is provided with a limiting portion in movable abutment with the limiting column, so as to limit the amplitude of rotation of the second clutch element.

[0023] The intelligent manhole cover lock provided by the embodiments of the present application, through the above structure, when the authorization assembly has not been authorized, the first clutch element is in transmission separation with the second clutch element under the action of the first elastic element, that is, the first clutch element cannot transmit power to the second clutch element, at this time, if the driving shaft of the operation assembly is subjected to external force, the driving shaft can only drive the first clutch element to idle, but cannot synchronously drive the second clutch element to rotate, and since the driving shaft is rotatably installed on the lock body and there is no limiting structure to limit the amplitude of rotation of the driving shaft, thus, the driving shaft subjected to external force can drive the first clutch element to idle at full angle, it can be seen that, when the authorization assembly has not been authorized, the driving shaft of the operation assembly subjected to external force can only drive the first clutch element to idle at full angle, and cannot transmit power to the second clutch element, which can well protect the internal structure of the intelligent manhole cover lock from being damaged by violence, and further avoid the function failure of the intelligent manhole cover lock. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced. Obviously, the drawings in the following description only represent some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained according to the structures shown in these drawings without any creative effort.

[0025] Figure 1 A structural schematic diagram of an embodiment of the intelligent manhole cover lock of the present application;

[0026] Figure 2 A schematic diagram of the handle of the intelligent manhole cover lock in the first state; Figure 1

[0027] Figure 3 A schematic diagram of the handle of the intelligent manhole cover lock in the first state; Figure 1

[0028] Figure 4 Another schematic diagram of the intelligent manhole cover lock; Figure 1

[0029] Figure 5 An exploded view of the clutch assembly; Figure 1

[0030] Figure 6 A sectional view of the authorization assembly of the intelligent manhole cover lock without authorization; Figure 2

[0031] Figure 7 A sectional view of the authorization assembly of the intelligent manhole cover lock after authorization; Figure 2

[0032] Figure 8 Another sectional view of the authorization assembly of the intelligent manhole cover lock after authorization. Figure 2

[0033] Explanation of the reference signs:

[0034] ​​​​​​​100, Intelligent well lid lock; 10, operation assembly; 11, driving shaft; 111, prism; 12, handle; 20, lock body; 21, guide column; 22, mounting cavity; 23, limiting part; 30, unlocking assembly; 31, output shaft; 32, handle; 321, connecting shaft; 322, key wrench; 323, bolt; 40, clutch assembly; 41, first clutch part; 411, mounting hole; 412, first clutch part; 413, first mounting groove; 414, first magnetic part; 42, second clutch part; 421, second clutch part; 422, locking hole; 423, second mounting groove; 424, limiting column; 43, first elastic part; 50, authorization assembly; 51, control part; 52, authorization part; 521, magnetic material part; 522, abutting part; 60, locking assembly; 61, unlocking part; 62, locking pin; 63, second elastic part; 70, emergency unlocking key.

[0035] The implementation, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0037] In the present application, unless otherwise explicitly specified and limited, the terms "connection", "fixation" and the like should be understood in a broad sense, for example, "fixation" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through an intermediate medium; can be internal connection of two elements or interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0038] In addition, in the present application, the description such as "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of various embodiments can be combined with each other, but it must be based on the fact that the technical solutions can be realized by those skilled in the art, and when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the scope of protection claimed by the present application.

[0039] The embodiments of the present application provide a kind of intelligent well lid lock 100, which is fixedly installed on well lid, mainly prevent being opened well lid during non-task period, cause the problem of sewer management out of control occurs. Figures 1 to 8 In the embodiments of the present application, the intelligent well lid lock 100 includes an operating assembly 10, a lock body 20, an unlocking assembly 30, a clutch assembly 40, and an authorization assembly 50.

[0040] It can be understood that when the well lid covers the well opening of the shaft, the well lid has an outer surface and an inner surface corresponding to the shaft, and a through hole is formed in the well lid for mounting the intelligent well lid lock 100. The lock body 20 is fixedly installed on the well lid. The lock body 20 can be installed on the well lid in various ways, such as clamping, screw structure locking, etc. The lock body 20 can also be installed on the well lid in a non-detachable manner such as welding. Preferably, in order to facilitate the maintenance and replacement of the intelligent well lid lock 100 in the future, the lock body 20 is preferably installed on the well lid in a detachable manner. And considering that the environment of the well lid is usually harsh, the material of the lock body 20 is usually corrosion-resistant and high-strength.

[0041] The operating assembly 10 includes a drive shaft 11 rotatably installed on the lock body 20. The drive shaft 11 can be indirectly rotatably installed on the lock body 20 through a bearing. It should be noted that the operating assembly 10 is mainly used for workers to operate. Therefore, when the intelligent well lid lock 100 is installed on the well lid, part of the structure of the drive shaft 11 is usually exposed to the outer surface of the well lid to be held by the worker. Of course, in some examples, the drive shaft 11 can also be exposed to the surface of the well lid shell through other structures of the operating assembly 10.

[0042] The unlocking assembly 30 is rotatably installed on the lock body 20. The unlocking assembly 30 can also be indirectly rotatably installed on the lock body 20 through a bearing. The main function of the unlocking assembly 30 is to drive the unlocking mechanism on the inner surface of the well lid to lock or unlock the well lid. Therefore, when the intelligent well lid lock 100 is installed on the well lid, part of the structure of the unlocking assembly 30 is usually exposed to the inner surface of the well lid to be in driving connection with the unlocking mechanism. The unlocking mechanism includes but is not limited to pawls, connecting rods, etc. The unlocking mechanism should be designed according to the specific application scenario and actual needs of the intelligent well lid lock 100.

[0043] The clutch assembly 40 comprises a first clutch member 41, a second clutch member 42, and a first elastic member 43. The first clutch member 41 is movably mounted on the drive shaft 11 in the axial direction of the drive shaft 11 and is in driving connection with the drive shaft 11. In this way, the first clutch member 41 can only move in the axial direction of the drive shaft 11 and cannot rotate relative to the drive shaft 11, that is, when the first clutch member 41 is subjected to an external force, it can only move in the axial direction of the drive shaft 11 and cannot rotate relative to the drive shaft 11. When the drive shaft 11 rotates, the drive shaft 11 can transmit power to the first clutch member 41 to drive the first clutch member 41 to rotate synchronously.

[0044] There are various ways to achieve the connection between the first clutch member 41 and the drive shaft 11. In some examples, the drive shaft 11 comprises a prism 111, and the first clutch member 41 is provided with a mounting hole 411 matched with the prism 111. The mounting hole 411 is sleeved on the prism 111, so that the first clutch member 41 is movably mounted on the drive shaft 11 in the axial direction of the drive shaft 11. The hole wall of the mounting hole 411 abuts against the peripheral side of the prism 111, so that the first clutch member 41 is in driving connection with the drive shaft 11, thereby achieving the connection between the first clutch member 41 and the drive shaft 11. Specifically, when the prism 111 is a triangular prism, the mounting hole 411 is triangular in shape. When the prism 111 is a square prism, the mounting hole 411 is square in shape. When the prism 111 is a pentagonal prism, the mounting hole 411 is pentagonal in shape.

[0045] In yet another example, the drive shaft 11 comprises a cylinder, and a drive groove is recessed in the peripheral side of the cylinder and extends in the axial direction of the drive shaft 11. The first clutch member 41 is provided with a circular hole, and a driving rib matched with the drive groove is protruded on the hole wall of the circular hole. The circular hole is sleeved on the cylinder, so that the first clutch member 41 is movably mounted on the drive shaft 11 in the axial direction of the drive shaft 11. The driving rib is in sliding connection with the drive groove, so that the first clutch member 41 is in driving connection with the drive shaft 11, thereby achieving the connection between the first clutch member 41 and the drive shaft 11.

[0046] The second clutch member 42 is fixedly connected with the unlocking assembly 30. The second clutch member 42 can be fixedly connected with the unlocking assembly 30 by means of insertion, clamping, bolt locking, welding, etc. It should be emphasized that the unlocking assembly 30 is rotatably mounted on the lock body 20. Therefore, when the first clutch member 41 is rotated by an external force, the unlocking assembly 30 will rotate synchronously.

[0047] The first elastic member 43 is elastically mounted between the first clutch member 41 and the second clutch member 42, so that the first clutch member 41 is driven to be separated from the second clutch member 42 under the action of the first elastic member 43. As described above in the description of the mounting mode of the first clutch member 41 and the second clutch member 42, the first clutch member 41 is driven to move along the axial direction of the driving shaft 11 away from the second clutch member 42 under the elastic drive of the first elastic member 43, so that the first clutch member 41 is separated from the second clutch member 42. It should be emphasized that the separation of the first clutch member 41 from the second clutch member 42 does not mean that the first clutch member 41 is completely separated from the second clutch member 42, but can also be in abutting contact, i.e., the first clutch member 41 and the second clutch member 42 can be in sliding contact with each other. Preferably, when the first clutch member 41 is separated from the second clutch member 42, the first clutch member 41 is completely separated from the second clutch member 42, so that the resistance to the rotation of the first clutch member 41 or the second clutch member 42 can be reduced.

[0048] The authorization component 50 generally has one or more electronic component modules for identity information verification, and the authorization component 50 can be authorized only when the identity verification is passed. The worker can establish a communication connection with the authorization component 50 through a wireless connection such as Bluetooth to perform identity information verification. After being authorized, the authorization component 50 acts on the first clutch member 41 to drive the first clutch member 41 to press the first elastic member 43, so as to overcome the action of the first elastic member 43 and make the first clutch member 41 and the second clutch member 42 in transmission cooperation.

[0049] The authorization component 50 has various specific forms. In some examples, the authorization component 50 includes an air bag and an air pump. After the authorization component 50 is authorized, the air pump inflates the air bag, so as to act on the first clutch member 41, i.e., the first clutch member 41 is driven to move by the volume change of the air bag. In some other examples, the authorization component 50 includes a gas cylinder. After the authorization component 50 is authorized, the piston rod of the gas cylinder extends, so as to act on the first clutch member 41, i.e., the first clutch member 41 is driven to move by the piston rod abutting against the first clutch member 41.

[0050] It can be understood that the authorization assembly 50 drives the first clutch 41 to press the first elastic member 43. When the force of the authorization assembly 50 acting on the first clutch 41 is greater than the elastic force of the first elastic member 43, the elastic force of the first elastic member 43 can be gradually overcome. The authorization assembly 50 continues to drive the first clutch 41 to press the first elastic member 43, and the first clutch 41 moves along the axial direction of the drive shaft 11 towards the second clutch 42, and is in transmission cooperation with the second clutch assembly 40. After the first clutch 41 and the second clutch 42 are in transmission cooperation, the drive shaft 11 establishes a connection relationship of transmission connection with the unlocking and locking assembly 30 through the transmission cooperation of the first clutch 41 and the second clutch 42. At this time, rotating the drive shaft 11 drives the clutch assembly 40 and the unlocking and locking assembly 30 to rotate synchronously, and drives the unlocking and locking mechanism connected with the unlocking and locking assembly 30 to lock or unlock the well cover.

[0051] The intelligent well cover lock 100 provided by the embodiment of the present application is provided with the above structure. When the authorization assembly 50 has not been authorized, the first clutch 41 is separated from the second clutch 42 in transmission under the action of the first elastic member 43, that is, the first clutch 41 cannot transmit power to the second clutch 42. At this time, if the drive shaft 11 of the operation assembly 10 is subjected to external force, the drive shaft 11 can only drive the first clutch 41 to idle, and cannot drive the second clutch 42 to rotate synchronously. Since the drive shaft 11 is rotatably installed on the lock body 20 and there is no limiting structure to limit the rotation amplitude of the drive shaft 11, the drive shaft 11 can drive the first clutch 41 to idle at full angle under the action of external force. It can be seen that, when the authorization assembly 50 has not been authorized, the drive shaft 11 of the operation assembly 10 can only drive the first clutch 41 to idle at full angle under the action of external force, and cannot transmit power to the second clutch 42. Therefore, the internal structure of the intelligent well cover lock 100 can be well protected from violent damage, and the function failure of the intelligent well cover lock 100 can be avoided.

[0052] In some examples, as shown in Figures 3 to 6 The first clutch 41 is provided with a first clutch portion 412 on the side facing the second clutch 42, and the second clutch 42 is provided with a second clutch portion 421 on the side facing the first clutch 41. The first clutch portion 412 is separated from the second clutch portion 421 in transmission under the action of the first elastic member 43, and the first clutch portion 412 is in transmission cooperation with the second clutch portion 421 under the action of the authorization assembly 50.

[0053] In this way, the transmission separation and transmission cooperation efficiency and reliability between the first clutch 41 and the second clutch 42 are improved through the cooperation between the first clutch portion 412 and the second clutch portion 421.

[0054] In some examples, as shown in Figures 3 to 7As shown, the first clutch part 412 includes at least one clutch block, and the second clutch part 421 includes at least one clutch groove. The clutch block is separated from the clutch groove under the action of the first elastic member 43, and the clutch block is inserted and matched with the clutch groove under the action of the authorization assembly 50.

[0055] It can be understood that when the clutch block is separated from the clutch groove, the first clutch member 41 and the second clutch member 42 cannot transmit power, that is, the transmission between the first clutch member 41 and the second clutch member 42 is separated. When the clutch block is inserted and matched with the clutch groove, the clutch block can be abutted with the groove wall of the clutch groove to realize the transmission of power, that is, the first clutch member 41 and the second clutch member 42 are in transmission cooperation. By such arrangement, the reliability of the transmission cooperation between the first clutch member 41 and the second clutch member 42 is further improved, thereby improving the reliability of the transmission connection between the driving shaft 11 and the unlocking assembly 30 through the clutch assembly 40.

[0056] In Figure 5 In the example shown, the first clutch part 412 includes six uniformly spaced clutch blocks, and the second clutch part 421 includes six uniformly arranged clutch grooves.

[0057] In some examples, as Figures 3 to 5 As shown, the first clutch member 41 is provided with a first mounting groove 413 on the side facing the second clutch member 42, the second clutch member 42 is provided with a second mounting groove 423 on the side facing the first clutch member 41, and the first elastic member 43 is a spring. One end of the spring is mounted in the first mounting groove 413, and the other end of the spring is mounted in the second mounting groove 423.

[0058] In combination with the above content of the clutch block and the first mounting groove 413, in some examples, the groove walls of the first mounting groove 413 connect the six clutch blocks together, that is, one end of the spring is mounted on the inner side of the six clutch blocks. In combination with the above content of the clutch groove and the second mounting groove 423, the second mounting groove 423 is in communication with the six clutch grooves, respectively.

[0059] In some examples, as Figures 3 to 8 As shown, the bottom wall of the clutch groove is provided with a locking hole 422, and the intelligent well lid lock 100 further includes a locking assembly 60. The locking assembly 60 includes an unlocking member 61, a locking pin 62, and a second elastic member 63. The unlocking member 61 is movably mounted in the locking hole 422, and the locking pin 62 is elastically mounted in the lock body 20 through the second elastic member 63. When the clutch block is separated from the clutch groove and the locking pin 62 is aligned with the locking hole 422, the locking pin 62 is inserted and matched with the locking hole 422 under the action of the second elastic member 63 to limit the rotation of the second clutch member 42. When the clutch block is inserted and matched with the clutch groove, the clutch block abuts against the unlocking member 61 to extrude the locking pin 62 out of the locking hole 422 to release the limitation on the second clutch member 42.

[0060] This configuration aims to ensure that when the authorization component 50 is not authorized, the second clutch component 40 and the unlocking / locking component 30 remain stationary under the action of the locking pin 62. This prevents the smart manhole cover lock 100 from being automatically activated by external forces (such as knocking or collisions) to lock or unlock the manhole cover, thus improving the reliability of the smart manhole cover lock 100. After the authorization component 50 obtains authorization, the clutch block can quickly push the locking pin 62 out of the locking hole 422, thereby releasing the restriction of the locking pin 62 on the rotation of the second clutch component 40.

[0061] In some examples, such as Figures 3 to 7 As shown, the authorization component 50 includes a control component 51 and an authorization component 52. The authorization component 52 is movably mounted on the lock body 20 along the axial direction of the drive shaft 11 and is located on the side of the first clutch component 41 away from the second clutch component 42. The control component 51 is fixedly mounted on the lock body 20. After obtaining authorization, the control component 51 controls the authorization component 52 to move along the axial direction of the drive shaft 11 toward the first clutch component 41 to act on the first clutch component 41.

[0062] The authorization component 52 is axially mounted on the lock body 20 along the drive shaft 11 and can be installed in various ways. In some examples, such as... Figure 3 and Figure 6 As shown, the lock body 20 is provided with guide posts 21, which extend along the axial direction of the drive shaft 11. The authorization member 52 is provided with through holes and sleeved on the guide posts 21. Preferably, there are two guide posts 21. In some other examples, the lock body 20 is provided with columnar grooves, the depth direction of which is parallel to the axial direction of the drive shaft 11. The authorization member 52 is provided with protruding insertion posts that engage with the columnar grooves. Preferably, there are two columnar grooves.

[0063] This configuration aims to control the authorized component 52 to move axially along the drive shaft 11 toward the first clutch component 41 via the control component 51, thereby acting on the first clutch component 41. This ensures that the control component 51, which executes control commands, acts intermittently on the drive shaft 11, thus preventing wear on the control component 51 during rotation and reducing its lifespan. Furthermore, after the authorized component 52 wears out, maintenance and upkeep of the smart manhole cover lock 100 can be performed by replacing it with a lower-cost replacement.

[0064] Considering that the first clutch 41 is usually disc-shaped, the authorization part 52 is provided with an annular abutment part 522 that abuts against the first clutch 41, and the hollow abutment part 522 can avoid the drive shaft 11, so as to avoid affecting the connection between the drive shaft 11 and the first clutch 41.

[0065] In some examples, such as Figures 3 to 7As shown, the authorization component 52 is provided with a magnetic material portion 521, and the control component 51 includes an electromagnet. After authorization is obtained, the control component 51 controls the electromagnet to magnetically attract the magnetic material portion 521, so as to control the authorization component 52 to move along the axial direction of the drive shaft 11 towards the first clutch component 41. The magnetic material portion 521 includes but is not limited to an iron block and a magnetic block. Preferably, the magnetic material portion 521 is an iron block.

[0066] In this way, after the activity authorization, the control component 51 can magnetically attract the magnetic material portion 521 through the magnetic force generated by the electromagnet. The electromagnet can generate a larger magnetic force in an instant. In this way, the authorization component 52 can quickly move along the axial direction of the drive shaft 11 towards the first clutch component 41, and further quickly press the first elastic component 43, thereby improving the response speed of the intelligent manhole cover lock 100.

[0067] In some examples, as shown in Figures 1 to 3 The first clutch component 41 is further fixedly provided with a first magnetic component 414. The intelligent manhole cover lock 100 further includes an emergency unlocking key 70. The emergency unlocking key 70 is provided with a second magnetic component. When the emergency unlocking key 70 is placed in the lock body 20, the second magnetic component drives the first clutch component 41 to press the first elastic component 43 through magnetic repulsion, so as to overcome the action of the first elastic component 43, and make the first clutch component 41 and the second clutch component 42 in transmission cooperation.

[0068] In this way, in the emergency situation such as failure of the authorization assembly 50, no unlocking key, and no power of the intelligent manhole cover lock 100, the emergency unlocking key 70 can be used to perform the unlocking operation on the intelligent manhole cover lock 100. Meanwhile, the unlocking mode of the intelligent manhole cover lock 100 is added, so as to provide more choices for workers.

[0069] In some examples, as shown in Figure 1 and Figure 2 The operation assembly 10 further includes a handle 12. The handle 12 is rotationally connected with the drive shaft 11. The handle 12 has a first state of being attached to the upper surface of the lock body 20 and a second state of being arranged at an angle with the upper surface of the lock body 20 and being capable of driving the drive shaft 11 to rotate under the action of an external force.

[0070] In this way, the handle 12 is used to perform the unlocking operation, so as to improve the convenience and unlocking efficiency of the intelligent manhole cover lock 100.

[0071] In some examples, the smart manhole cover lock 100 also includes a wake-up detection component, which is fixedly installed on the lock body 20 and electrically connected to the authorization component 50. The wake-up detection component is used to detect whether the handle 12 is in a first state or a second state. When the handle 12 is detected to be in the first state, the wake-up detection component sends a sleep signal or a keep-sleep signal to the authorization component 50, causing the authorization component 50 to go into sleep mode to save power. When the handle 12 is detected to be in the second state, the wake-up detection component sends a wake-up signal or a keep-working signal to the authorization component 50, enabling the worker to establish a communication connection with the authorization component 50.

[0072] In some specific configurations, the wake-up detection component includes a reed switch. The reed switch determines whether the handle 12 is in a first state or a second state by detecting the magnet on the handle 12. Specifically, when the reed switch stably and continuously detects the magnet, it can be determined that the handle 12 is in the first state. When the reed switch detects the magnet moving away from the reed switch, it can be determined that the handle 12 is in the second state.

[0073] In some specific configurations, the wake-up detection component includes a push-button switch. This push-button switch determines whether the handle 12 is in a first state or a second state by detecting whether the handle 12 is pressed down. Specifically, when the handle is pressed down steadily and continuously, the handle 12 is determined to be in the first state, and when the handle is not pressed down, the handle 12 is determined to be in the second state.

[0074] In some examples, such as Figure 3 and Figure 6 As shown, the locking / unlocking assembly 30 includes an output shaft 31 and a handle 32. The output shaft 31 is rotatably mounted on the lock body 20. One end of the output shaft 31 is fixedly connected to the second clutch 42, and the other end of the output shaft 31 is detachably connected to the handle 32. The handle 32 is also used for transmission connection with the locking / unlocking mechanism.

[0075] With this configuration, after the worker inside the shaft separates the transmission connection between the output shaft 31 and the handle 32, they can operate the locking / unlocking mechanism by operating the handle 32, thereby controlling the locking / unlocking mechanism to lock or unlock the manhole cover, thus realizing the locking / unlocking operation inside the shaft and preventing accidents, such as preventing workers from being trapped inside the shaft.

[0076] In some examples, the handle 32 includes a connecting shaft 321, a box wrench 322, and a pin 323. The connecting shaft 321 is sleeved on the end of the output shaft 31 away from the second clutch 42, and is engaged with the connecting shaft 321 and the output shaft 31 respectively by the pin 323 to achieve a separable transmission connection. The connecting shaft 321 is also used for transmission connection with the unlocking and locking mechanism. The box wrench 322 is fixedly connected to the end of the connecting shaft 321 away from the output shaft 31.

[0077] The worker can pull out the pin 323 to achieve the transmission separation of the output shaft 31 and the connecting shaft 321, at this time, the worker can operate the unlocking and locking mechanism by rotating the spanner wrench 322.

[0078] Considering that the output shaft 31 rotates within a certain range, the unlocking and locking operation of the unlocking and locking mechanism can be achieved. In some examples, as shown in Figures 3 to 7 The second clutch 42 is provided with a limiting column 424, and the lock body 20 is provided with a limiting portion 23 which is in movable abutment with the limiting column 424 to limit the rotation range of the second clutch 42.

[0079] The limiting portion 23 has various setting forms. In one setting form, the lock body 20 is concavely provided with an arc-shaped recess to form the above-mentioned limiting portion 23, and the limiting column 424 is inserted and matched with the arc-shaped recess. The limiting column 424 is in abutment with the slot wall of the arc-shaped recess to achieve the purpose of limiting the rotation range of the second clutch 42. In another setting form, the lock body 20 is convexly provided with two protrusions to form the above-mentioned limiting portion 23, and the limiting column 424 is in abutment with the two protrusions respectively to achieve the purpose of limiting the rotation range of the second clutch 42.

[0080] Considering the protection performance of the intelligent well lid lock 100, the lock body 20 is usually provided with a mounting cavity 22, and the above-mentioned clutch assembly 40 and the authorization assembly 50 are mounted in the mounting cavity 22. The above-mentioned driving shaft 11 and the output shaft 31 are partially mounted in the mounting cavity 22.

[0081] The above-mentioned is only an optional embodiment of the present application, and does not limit the patent scope of the present application. Any equivalent structural transformation made according to the content of the present application specification and drawings, or direct / indirect application in other related technical fields under the inventive concept of the present application is included in the patent protection scope of the present application.

Claims

1. A smart manhole cover lock, characterized by, The intelligent well lid lock comprises an operation assembly, a lock body, an unlocking assembly, a clutch assembly and an authorization assembly. The operation assembly comprises a driving shaft rotatably installed on the lock body. The unlocking assembly is rotatably installed on the lock body. The clutch assembly comprises a first clutch member, a second clutch member and a first elastic member. The first clutch member is movably installed on the driving shaft in the axial direction of the driving shaft and is in transmission connection with the driving shaft. The second clutch member is fixedly connected with the unlocking assembly. The first elastic member is elastically installed between the first clutch member and the second clutch member, so that the first clutch member is in transmission separation with the second clutch member under the action of the first elastic member. The authorization assembly acts on the first clutch member after authorization to drive the first clutch member to press the first elastic member, so as to overcome the action of the first elastic member and make the first clutch member in transmission cooperation with the second clutch member.

2. The intelligent manhole cover lock of claim 1, wherein, The first clutch member is provided with a first clutch portion on the side facing the second clutch member, and the second clutch member is provided with a second clutch portion on the side facing the first clutch member. The first clutch portion is in transmission separation with the second clutch portion under the action of the first elastic member, and the first clutch portion is in transmission cooperation with the second clutch portion under the action of the authorization assembly.

3. The intelligent manhole cover lock of claim 2, wherein, The first clutch portion comprises at least one clutch block, and the second clutch portion comprises at least one clutch groove. The clutch block is separated from the clutch groove under the action of the first elastic member, and the clutch block is in plug-in cooperation with the clutch groove under the action of the authorization assembly.

4. The intelligent manhole cover lock of claim 3, wherein, The bottom wall of the clutch groove is provided with a locking hole. The intelligent well lid lock further comprises a locking assembly. The locking assembly comprises an unlocking member, a locking pin and a second elastic member. The unlocking member is movably installed in the locking hole. The locking pin is elastically installed in the lock body through the second elastic member. When the clutch block and the clutch groove are separated from each other and the locking pin is aligned with the locking hole, the locking pin is in plug-in cooperation with the locking hole under the action of the second elastic member to limit the rotation of the second clutch member. When the clutch block and the clutch groove are in plug-in cooperation, the clutch block abuts against the unlocking member to press the locking pin out of the locking hole to release the limitation on the second clutch member.

5. The intelligent manhole cover lock of claim 1, wherein, The authorization assembly comprises a control member and an authorization member. The authorization member is movably installed on the lock body in the axial direction of the driving shaft and is located on the side away from the second clutch member. The control member is fixedly installed on the lock body. The control member controls the movement of the authorization member in the axial direction of the driving shaft towards the first clutch member after authorization to act on the first clutch member.

6. The intelligent manhole cover lock of claim 5, wherein, The authorization member is provided with a magnetic material portion. The control member comprises an electromagnet. The control member controls the movement of the authorization member in the axial direction of the driving shaft towards the first clutch member by controlling the electromagnet to magnetically attract the magnetic material portion after authorization.

7. The intelligent manhole cover lock of claim 1, wherein, The first clutch member is further fixedly provided with a first magnetic member, the intelligent well lid lock further comprises an emergency unlocking key, the emergency unlocking key is provided with a second magnetic member, when the emergency unlocking key is placed in the lock body, the second magnetic member drives the first clutch member to press the first elastic member through magnetic repulsion, so as to overcome the effect of the first elastic member, so that the first clutch member is in transmission cooperation with the second clutch member.

8. The intelligent manhole cover lock of claim 1, wherein, The operation assembly further comprises a handle, the handle is rotationally connected with the drive shaft, the handle has a first state of being attached to the upper surface of the lock body and a second state of being arranged at an angle with the upper surface of the lock body and being capable of driving the drive shaft to rotate under the action of external force.

9. The intelligent manhole cover lock of claim 8, wherein, The intelligent well lid lock further comprises a wake-up detection assembly, the wake-up detection assembly is fixedly installed on the lock body and electrically connected with the authorization assembly, and the wake-up detection assembly is used to detect whether the handle is in the first state or the second state.

10. The intelligent manhole cover lock of claim 1, wherein, The unlocking assembly comprises an output shaft and a handle, the output shaft is rotationally installed on the lock body, one end of the output shaft is fixedly connected with the second clutch member, and the other end of the output shaft is detachably transmissionally connected with the handle, and the handle is further used to be transmissionally connected with the unlocking mechanism.

11. The intelligent manhole cover lock of claim 1, wherein, The second clutch member is provided with a limiting column, and the lock body is provided with a limiting portion which is movably abutted with the limiting column, so as to limit the rotating range of the second clutch member.

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