CN113775262A

CN113775262A - Intelligent well cover lock based on wireless communication

Info

Publication number: CN113775262A
Application number: CN202111029638.4A
Authority: CN
Inventors: 杨自然; 王琛琛; 赵琦浩; 黄明明
Original assignee: Nanjing Huamai Technology Co Ltd
Current assignee: Nanjing Huamai Technology Co Ltd
Priority date: 2021-09-03
Filing date: 2021-09-03
Publication date: 2021-12-10
Anticipated expiration: 2041-09-03
Also published as: CN113775262B

Abstract

The invention discloses an intelligent manhole cover lock which comprises an intelligent lock bottom shell and an intelligent lock upper cover, wherein a battery bin for mounting a battery is arranged on the back of the intelligent lock bottom shell, a main body bin is arranged on the front of the intelligent lock bottom shell, a motor, a lock core shaft, a connecting rod shaft, a shaft pin mechanism, an elastic bolt assembly, a main control panel, a wireless communication module panel and a motor drive panel are arranged in the main body bin, the lower end of the lock core shaft is a cylindrical convex shaft, a cavity is arranged in the cylindrical body, and the cavity, the shaft pin, a spring and a fastening screw are combined to form the shaft pin mechanism capable of automatically extending out; a cylindrical cavity is arranged at one end of the connecting rod shaft close to the lock core shaft, the cylindrical cavity is matched with the convex shaft, a circle of groove is arranged on the inner wall of the cylindrical cavity, and a horn-shaped hole with a small inner opening and a large outer opening is formed in the side wall of the groove; the elastic bolt assembly is positioned on the outer side of the running track of the horn-shaped hole and comprises a bolt head, a spring and a transmission nut, wherein the bolt head is matched with the horn-shaped hole and is provided with a blind hole, the spring is positioned in the blind hole, and the transmission nut is inserted into the blind hole. The lock can be unlocked from the well.

Description

Intelligent well cover lock based on wireless communication

Technical Field

The invention relates to the field of well cover locks in communication, municipal administration and the like, in particular to an intelligent well cover lock based on wireless communication.

Background

With the rapid layout of 5G in China and the orderly promotion of new infrastructure, an optical fiber network is rapidly grown, pipeline resources of a bearing network cannot be enlarged in the same proportion at one time, so that pipe well resources become tense and important, and well cover equipment added with the pipe well resources belongs to dummy resources and is easy to be dislocated and lost under the condition that effective management cannot be achieved, so that direct cost loss and indirect potential safety hazards are caused.

Currently, the Internet of things industry is developed vigorously, and smart cities are well-trained in construction. In the process of creating a smart city, how to comprehensively utilize new-generation information technologies such as internet of things, big data, artificial intelligence and the like to realize functions such as real-time monitoring, early warning and the like of a well lid, so that accidents are reduced, and the method becomes an important research project and a practical subject which are generally concerned by all the circles of society.

In patent (CN 213898514U) earlier filed by the applicant, an intelligent manhole cover lock based on wireless communication has been provided, but the problem that the lock cannot be unlocked in the well after being locked exists, and the safety of a worker in the well is affected.

Disclosure of Invention

In order to solve the problem that the manhole cover lock cannot be unlocked from the inside of the well after being locked, the invention provides an intelligent manhole cover lock based on wireless communication.

The invention discloses an intelligent well lid lock based on wireless communication, which comprises an intelligent lock bottom shell and an intelligent lock upper cover, wherein a battery bin for mounting a battery is arranged on the back surface of the intelligent lock bottom shell, a main body bin is arranged on the front surface of the intelligent lock bottom shell, and a motor, a lock core shaft, a connecting rod shaft, a shaft pin mechanism, an elastic bolt component, a main control board, a wireless communication module board and a motor drive board are arranged in the main body bin; the lower end of the lock core shaft is a convex shaft of a cylindrical body, and a cavity is arranged in the cylindrical body; a cylindrical cavity is arranged at one end of the connecting rod shaft close to the lock core shaft, the cylindrical cavity is matched with a convex shaft of the lock core shaft for use, a circle of groove is arranged on the inner wall of the cylindrical cavity, a horn-shaped hole with a small inner opening and a large outer opening is formed in the side wall of the groove, and the axis of the horn-shaped hole is perpendicular to the axis of the cylindrical cavity; the shaft pin mechanism comprises a shaft pin, a first spring and a fastening screw, the shaft pin, the first spring and the fastening screw are combined with the cavity, and the shaft pin can automatically extend out of the cavity and be inserted into the horn-shaped hole; the elastic bolt assembly is positioned outside the running track of the horn-shaped hole and comprises a bolt head, a second spring and a transmission nut, the bolt head is matched with the horn-shaped hole, a blind hole is formed in the bolt head from the tail to the head, the second spring is arranged in the blind hole, one end of the transmission nut is limited in the blind hole to move so as to enable the second spring to stretch, and the other end of the transmission nut is connected with the motor; under the state that the bolt head is matched with the trumpet-shaped hole, the lock core shaft can idle.

As a preferred scheme, the upper end of the lock core shaft is a hexagonal head, and the hexagonal head penetrates through a mounting hole formed in the upper cover and is used for being matched with an external hexagonal mechanical key to unlock; the lower end of the connecting rod shaft penetrates through a mounting hole formed in the bottom shell, and the end head of the connecting rod shaft is in a tenon shape.

According to the preferable scheme, two sections of sealing grooves are arranged in the middle of the lock core shaft, sealing rings are arranged in the seal grooves, and the lock core shaft is matched with an intelligent lock upper cover to achieve a waterproof effect when the lock core shaft is static or rotates; two sections of sealing grooves are arranged in the middle of the connecting rod shaft, sealing rings are arranged in the sealing grooves, and the connecting rod shaft is matched with an intelligent lock bottom shell structure, so that the connecting rod shaft plays a waterproof role in static or rotating.

As preferred scheme, intelligence lock chassis is equipped with motor fixed position and elasticity bolt subassembly transmission guide rail, and the motor shaft is axial linear motion.

As preferred scheme, main part storehouse lateral wall is equipped with water joint.

As a preferred scheme, a sealing ring is arranged on the lower surface of the intelligent lock bottom shell, and the battery compartment is isolated from the outside by the sealing ring and the battery box upper cover; the upper surface of intelligence lock drain pan also sets up the sealing washer, and sealing washer and intelligence lock upper cover keep apart the main part storehouse with external.

Preferably, the main control board comprises a control unit board taking BC35 or M5310 as a main chip; the wireless communication module board comprises a communication unit board mainly comprising a mobile NB module, a telecommunication NB module and a general module, and the main control board and the wireless communication module board are responsible for collecting, analyzing and uploading information and analysis results of each sensor, receiving instructions sent by the intelligent well lid management system, sending and controlling execution and feeding back execution results.

As the preferred scheme, a travel switch is arranged on the motor driving plate and used for detecting the working position condition of the motor.

As preferred scheme, the trumpet-shaped hole becomes fan-shaped breach, and fan-shaped breach link up the cylinder cavity lateral wall to the opening is in connecting rod axle up end, and the bolt head has the arcwall face with fan-shaped breach matched with. After the arrangement, the area of the notch of the fan-shaped notch is obviously larger than that of the horn-shaped hole, so that the fault rate and the fault tolerance rate of the bolt head in the locking process are reduced.

As the preferred scheme, still include the rolling disc that is located the drain pan bottom, the rolling disc has the mortise with the tenon form end matched with of connecting rod axle to form mortise-tenon joint with the tenon form end of connecting rod axle. After the arrangement, an operator in the well can rotate the rotating disc to unlock the lock from the well.

Has the advantages that: according to the intelligent well cover lock, the round holes formed in the side wall of the groove in the past are changed into the horn-shaped holes, the elastic bolt component is adopted to replace an inelastic push rod, when the bolt head of the elastic bolt component is matched with the horn-shaped holes in the connecting rod shaft, the connecting rod shaft can still be rotated, then the connecting rod shaft pushes the bolt head to extrude the second spring to retreat, so that the lock is unlocked, namely the connecting rod shaft can also idle in the locking state, so that the well cover lock can be freely unlocked from the inside of the well, and the safety of operating personnel in the well is improved; the horn hole is changed into a fan-shaped notch, the fan-shaped notch penetrates through the side wall of the cylindrical cavity and is opened on the upper end face of the connecting rod shaft, and the bolt head is provided with an arc-shaped face matched with the fan-shaped notch, so that the fault rate and the fault tolerance rate of the bolt head in the locking process are reduced; the rotating disc is arranged at the bottom of the bottom shell, and the rotating disc is in mortise and tenon connection with the lower end head of the connecting rod shaft, so that an operator in the well can conveniently unlock the well through rotating the rotating disc.

Through setting up elasticity bolt subassembly, when tubaeform hole misalignment elasticity bolt subassembly, when the lock is closed to operating personnel mistake, the motor can take drive nut to target in place in advance to keep certain thrust for the bolt head, when tubaeform hole turned to the position again, the second spring can promote bolt head compression pivot mechanism immediately, forms and closes the lock, has avoided the motor hard top and the damage that causes when the maloperation.

Drawings

FIG. 1 is a schematic structural diagram of an intelligent manhole cover lock of the present invention;

FIG. 2 is an exploded view of the intelligent well cover lock of the present invention;

FIG. 3 is an exploded view of the construction of the locking spindle;

FIG. 4 is an exploded view of the structure of the link shaft;

FIG. 5 is an exploded view of the structure of the resilient latch assembly;

in the figure, 1, an intelligent lock bottom shell; 2. an upper cover of the intelligent lock; 3. a battery box upper cover; 4. a motor pressing plate; 5. a lock core shaft; 51. a hexagonal head; 52. a shaft pin; 53. a first spring; 54. fastening screws; 55. a first seal ring; 56. a first magnet; 6. a link shaft; 61. a sector-shaped notch; 62. a second seal ring; 63. a groove; 64. a second magnet; 7. an elastic plug pin assembly; 71. a plug pin head; 72. a second spring; 73. a drive nut; 8. a shaft pin mechanism; 9. a third seal ring; 11. a main control panel; 12. a wireless communication module board; 13. a motor drive plate; 14. a small DC motor set; 15. authenticating a driving board; 16. a battery base; 17. a battery; 18. a waterproof joint; 19. rotating the disc; 20. and (4) screws.

Detailed Description

The technical solution of the present invention is described in detail below with reference to the accompanying drawings, but the scope of the present invention is not limited to the embodiments.

Examples

The utility model provides an intelligence well lid lock based on wireless communication, includes intelligent lock drain pan 1, intelligent lock upper cover 2, battery case upper cover 3, motor clamp plate 4, lock dabber 5, connecting rod axle 6, elasticity bolt subassembly 7, pivot mechanism 8, third sealing washer 9, main control board 11, wireless communication module board 12, motor drive board 13 and small-size direct current motor group 14, the emergent key of bluetooth and authentication drive board 15, battery base 16 and battery 17.

There is a battery compartment at the back of intelligence lock drain pan 1 for the installation battery, be equipped with the seal groove at the lower surface of intelligence lock drain pan 1, cooperation third sealing washer 9 and battery case upper cover 3 keep apart battery compartment and external world, and reach the IP68 grade, the front of intelligence lock drain pan 1 is provided with the main part storehouse, the upper surface of intelligence lock drain pan also is equipped with the seal groove, cooperation intelligence lock upper cover 2 keeps apart main part storehouse and external world, and reach IP68 grade.

The main body bin is used for components such as a motor pressing plate 4, a lock core shaft 5, a connecting rod shaft 6, an elastic bolt component 7, a shaft pin mechanism 8, a third sealing ring 9 and the like; the main body bin is provided with a motor installation groove, and a small direct current motor set 14 is installed in the motor installation groove; the main body bin is provided with a PCBA board mounting area, a main control board 11, a wireless communication module board 12 and a motor drive board 13; the side wall of the main body bin is provided with a waterproof joint 18, so that the use of various external sensing periods and subsequent function expansion is facilitated.

The lower end of the lock core shaft 5 is a convex shaft of a cylindrical body, and a cavity is arranged in the cylindrical body; a cylindrical cavity is arranged at one end of the connecting rod shaft 6 close to the lock core shaft 5, the cylindrical cavity is matched with a convex shaft of the lock core shaft 5 for use, and a circle of groove 63 is arranged on the inner wall of the cylindrical cavity; the side wall of the cylindrical cavity is provided with a fan-shaped notch 61 which penetrates through the side wall, the axis of the cylindrical cavity is vertical to the fan surface, and the fan-shaped notch 61 is opened on the upper end surface of the connecting rod shaft; the shaft pin mechanism 8 comprises a shaft pin 52, a first spring 53 and a fastening screw 54, the shaft pin 52, the first spring 53 and the fastening screw 54 are combined with the cavity, and the shaft pin 52 can automatically extend out of the cavity and be inserted into the horn-shaped hole; the elastic bolt component 7 is positioned on the outer side of the running track of the fan-shaped notch, the elastic bolt component 7 comprises a bolt head 71, a second spring 72 and a transmission nut 73, the bolt head 71 is provided with an arc-shaped surface matched with the fan-shaped notch 61, the bolt head 71 is provided with a blind hole from the tail to the head, the second spring 72 is arranged in the blind hole, the end of a transmission rod of the transmission nut 73 is provided with a through hole vertical to the axis, two opposite sliding grooves penetrating through the wall of the blind hole are arranged on the wall of the blind hole along the length direction of the blind hole, the transmission rod is inserted into the blind hole and pins are inserted from the sliding grooves and the through hole, one end of the transmission nut 73 is limited to move in the blind hole to enable the second spring 72 to stretch, and the other end of the transmission nut 73 is connected with the small-size direct current motor group 14; in a state where the plug head 71 is fitted to the trumpet-shaped hole, the lock cylinder shaft 5 can idle.

An elastic bolt component sliding rail is arranged in the main body bin, and an elastic bolt component 7 is arranged on the sliding rail to realize the linear motion of the elastic bolt component; the bottom shell is provided with a motor fixing position and an elastic bolt assembly transmission guide rail, a small direct current motor set is fixed at the motor fixing position, a motor shaft moves axially and linearly, and the motor shaft is fixed with a transmission nut 73.

In addition, the upper end of the lock core shaft 5 is a hexagonal head 51, and the hexagonal head 51 penetrates through a mounting hole arranged on the upper cover and is used for being matched with an external hexagonal mechanical key to unlock; two sections of sealing grooves are arranged in the middle of the lock core shaft 5, a first sealing ring 55 is arranged in the lock core shaft, the first sealing ring 55 is a butyronitrile sealing ring, and the lock core shaft 5 plays a waterproof role in static or rotating by matching with an upper cover; the outer circular surface of the lower end of the seal groove of the lock core shaft is provided with a circular hole groove, a first magnet 56 is assembled, and the lock core shaft 5 rotation condition is detected by matching with external detection equipment.

The lower end of the connecting rod shaft 6 penetrates through a mounting hole formed in the bottom shell, and the end head of the connecting rod shaft is in a tenon shape; two sections of sealing grooves are formed in the middle of the connecting rod shaft 6, a second sealing ring 62 is arranged in the sealing grooves, the second sealing ring 62 is a butyronitrile sealing ring, and a bottom shell structure is matched, so that the connecting rod shaft 6 plays a waterproof role when in static or rotating; the connecting rod shaft 6 is provided with a circular hole slot, is provided with a second magnet 64, and is matched with external detection equipment to detect the rotation condition of the connecting rod shaft 6.

The main control board 11 includes a control unit board using BC35 or M5310 as a main chip; the wireless communication module board 12 includes a communication unit board mainly including a mobile NB module, a telecommunication NB module, and a general module, and is responsible for collecting, analyzing, and uploading information and analysis results of each sensor together with a main control board and a program, and receiving an instruction issued by the intelligent manhole cover management system, and sending and controlling execution and feeding back execution results, such as starting and stopping of a motor; the motor driving plate 13 is provided with a travel switch for detecting the working position condition of the motor.

After all parts in the intelligent well lid lock are installed, the intelligent lock bottom shell 1 and the intelligent lock upper cover 2 are fixedly connected through the screws 20 and the matched nuts.

The intelligent well lid lock further comprises a rotating disc 19 located at the bottom of the bottom shell, wherein the rotating disc 19 is provided with mortise matched with the tenon-shaped end of the connecting rod shaft 6 and is fixedly connected with the tenon-shaped end of the connecting rod shaft 6 in a tenon-and-mortise mode.

This intelligence well lid lock is through having set up fan-shaped breach 61 on connecting rod axle 6, establish the bolt head front end of elasticity bolt subassembly 7 into the arcwall face with fan-shaped breach 61 matched with, rotate to relevant position when lock core axle 5, pivot 52 of pivot mechanism 8 can be popped out by first spring 53, fall into this fan-shaped breach 61, thereby make lock core axle 5 and the linkage of connecting rod axle 6, under elasticity bolt subassembly 7 is under the motor action, the space of this fan-shaped breach 61 has been filled to bolt head 71, lock core axle 5 and connecting rod axle 6 disassociation, and pin connecting rod axle 6, thereby reach the effect of separation and reunion. Especially, the front end of the bolt head is an arc-shaped surface and is matched with the fan-shaped notch 61, and the connecting rod shaft 6 can also idle in a locking state, so that in an emergency, a worker in a well can manually rotate the rotating disc 19 at the bottom of the lock body to drive the connecting rod shaft 6 to rotate, and the lock body is opened from the inner side of the well.

The above-mentioned techniques not specifically mentioned refer to the prior art.

As noted above, while the present invention has been shown and described with reference to certain preferred embodiments, it is not to be construed as limited thereto. Various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. An intelligent manhole cover lock based on wireless communication is characterized by comprising an intelligent lock bottom shell and an intelligent lock upper cover, wherein a battery bin for mounting a battery is arranged on the back of the intelligent lock bottom shell, a main body bin is arranged on the front of the intelligent lock bottom shell, and a motor, a lock core shaft, a connecting rod shaft, a shaft pin mechanism, an elastic bolt assembly, a main control board, a wireless communication module board and a motor drive board are arranged in the main body bin; the lower end of the lock core shaft is a convex shaft of a cylindrical body, and a cavity is arranged in the cylindrical body; a cylindrical cavity is arranged at one end of the connecting rod shaft close to the lock core shaft, the cylindrical cavity is matched with a convex shaft of the lock core shaft for use, a circle of groove is arranged on the inner wall of the cylindrical cavity, a horn-shaped hole with a small inner opening and a large outer opening is formed in the side wall of the groove, and the axis of the horn-shaped hole is perpendicular to the axis of the cylindrical cavity; the shaft pin mechanism comprises a shaft pin, a first spring and a fastening screw, the shaft pin, the first spring and the fastening screw are combined with the cavity, and the shaft pin can automatically extend out of the cavity and be inserted into the horn-shaped hole; the elastic bolt assembly is positioned outside the running track of the horn-shaped hole and comprises a bolt head, a second spring and a transmission nut, the bolt head is matched with the horn-shaped hole, a blind hole is formed in the bolt head from the tail to the head, the second spring is arranged in the blind hole, one end of the transmission nut is limited in the blind hole to move so as to enable the second spring to stretch, and the other end of the transmission nut is connected with the motor; under the state that the bolt head is matched with the trumpet-shaped hole, the lock core shaft can idle.

2. The intelligent well lid lock based on wireless communication of claim 1, wherein the upper end of the lock core shaft is a hexagonal head, and the hexagonal head penetrates through a mounting hole formed in the upper cover and is used for being matched with an external hexagonal mechanical key to unlock; the lower end of the connecting rod shaft penetrates through a mounting hole formed in the bottom shell, and the end head of the connecting rod shaft is in a tenon shape.

3. The intelligent well lid lock based on wireless communication of claim 2, wherein two sections of sealing grooves are arranged in the middle of the lock core shaft, a sealing ring is arranged in the sealing grooves, and the lock core shaft is matched with the intelligent lock upper cover to achieve a waterproof effect when the lock core shaft is static or rotates; two sections of sealing grooves are arranged in the middle of the connecting rod shaft, sealing rings are arranged in the sealing grooves, and the connecting rod shaft is matched with an intelligent lock bottom shell structure, so that the connecting rod shaft plays a waterproof role in static or rotating.

4. The intelligent well lid lock based on wireless communication of claim 3, wherein the intelligent lock bottom shell is provided with a motor fixing position and an elastic bolt assembly transmission guide rail, and a motor shaft moves linearly in the axial direction.

5. The intelligent well cover lock based on wireless communication of claim 4, wherein the side wall of the main body cabin is provided with a waterproof joint.

6. The intelligent well lid lock based on wireless communication of claim 5, wherein the lower surface of the bottom shell of the intelligent lock is provided with a sealing ring, and the sealing ring and the upper cover of the battery box isolate the battery compartment from the outside; the upper surface of intelligence lock drain pan also sets up the sealing washer, and sealing washer and intelligence lock upper cover keep apart the main part storehouse with external.

7. The intelligent manhole cover lock based on wireless communication of claim 6, wherein the main control board comprises a control unit board with BC35 or M5310 as a main chip; the wireless communication module board comprises a communication unit board mainly comprising a mobile NB module, a telecommunication NB module and a general module, and the main control board and the wireless communication module board are responsible for collecting, analyzing and uploading information and analysis results of each sensor, receiving instructions sent by the intelligent well lid management system, sending and controlling execution and feeding back execution results.

8. The intelligent well lid lock based on wireless communication of claim 7, wherein a travel switch is arranged on a motor driving plate and used for detecting the working position condition of the motor.

9. The intelligent well lid lock based on wireless communication of claim 8, wherein the trumpet-shaped hole is changed into a fan-shaped notch, the fan-shaped notch penetrates through the side wall of the cylindrical cavity and opens at the upper end face of the connecting rod shaft, and the bolt head is provided with an arc-shaped face matched with the fan-shaped notch.

10. The intelligent well lid lock based on wireless communication of claim 9, further comprising a rotating disc located at the bottom of the bottom shell, wherein the rotating disc is provided with mortise holes matched with the tenon-shaped ends of the connecting rod shafts and forms mortise-tenon connection with the tenon-shaped ends of the connecting rod shafts.