Intelligent well lid

Abstract

The invention relates to the technical field of safety well lids, in particular to an intelligent well lid. Comprising a well mouth seat, and a cover body is rotationally connected to the well mouth seat; the rotating sleeve is rotationally connected to the cover body, a lock cylinder is arranged in the rotating sleeve, a first telescopic rod is rotationally connected to the rotating sleeve, and the telescopic end of the first telescopic rod is rotationally connected with the lock cylinder; and the liquid guide pipe communicates with the first telescopic rod, the lower side of the cover body is slidably connected with a plurality of sliding shells, the sliding shells are slidably connected with limiting blocks, a plurality of blind holes are formed in the wellhead seat, and the sliding shells communicate with the liquid guide pipe. Through rotation of the rotating sleeve and cooperation with a lock cylinder opening mode, whether an illegal person tries to pry the lock cylinder on the cover body or not exists is detected, then the liquid guide pipe is closed, the locking state of the cover body cannot be relieved through the lock cylinder, the difficulty of illegal invasion is increased, and safety of equipment in a cable tunnel is protected.

Description

Technical Field

[0001] The present invention relates to the technical field of safety manhole covers, and particularly to an intelligent manhole cover. Background Art

[0002] A manhole cover is a protective device used to cover the entrances of underground facilities such as urban roads and sidewalks, and is widely used in drainage systems, water supply pipes, cable tunnels and other fields. However, manhole covers, especially those in cable tunnels, due to the importance of their locations and the high value of the cables inside, are often in a locked state. Existing intelligent manhole covers for cable tunnels are usually equipped with electronic locks, manual emergency keyholes and alarms, which firmly lock the manhole cover on the frame of the wellhead.

[0003] However, in the actual use process of intelligent manhole covers for cable tunnels, if illegal personnel forcibly open the manhole cover by picking the lock, the lock core of the intelligent manhole cover is extremely easy to fail due to external force, resulting in the manhole cover being illegally opened, thus allowing criminals to enter the cable tunnel for theft or sabotage. This situation not only makes the safety protection of the intelligent manhole cover ineffective, but also increases the risk of theft of cables and other valuable equipment in the cable tunnel. Summary of the Invention

[0004] Aiming at the problem that the lock core of the intelligent manhole cover is extremely easy to fail when being pried, the present invention provides an intelligent manhole cover.

[0005] The technical solution of the present invention is: an intelligent manhole cover, comprising: a wellhead seat, on which a cover body is rotatably connected; an intelligent module is arranged on the cover body; a rotating sleeve, rotatably connected to the cover body, a lock core is arranged inside the rotating sleeve, a first telescopic rod is rotatably connected to the rotating sleeve, and the telescopic end of the first telescopic rod is rotatably connected to the lock core; a liquid guide pipe, communicated with the first telescopic rod, a plurality of sliding shells are slidably connected to the lower side of the cover body, a limiting block is slidably connected to the sliding shell, a plurality of blind holes are arranged on the wellhead seat, and the limiting block limits the rotation of the cover body through adjacent blind holes on the wellhead seat. All the sliding shells are communicated with the liquid guide pipe, and hydraulic oil is filled in both the first telescopic rod and the sliding shells; a locking mechanism, arranged inside the cover body, is used for making the lock core ineffective when it is deflected; an unlocking mechanism, arranged at the lower part of the cover body, is used for enabling an operator to unlock the cover body inside the well.

[0006] Preferably, a damping is arranged between the contact surfaces of the rotating sleeve and the cover body, and this damping only offsets the deflecting force when the lock core is opened by a key, and is used for making the deflecting force generated when the lock core is opened by non-key drive the rotation of the rotating sleeve.

[0007] Preferably, as for the present invention, the locking mechanism includes: a fixed frame fixedly connected inside the cover body, the liquid guide pipe penetrating the fixed frame, a sliding plate slidably connected inside the fixed frame, a through hole provided on the sliding plate, and the through hole of the sliding plate is used to communicate the liquid guide pipe; a second telescopic rod rotatably connected inside the cover body, the telescopic end of the second telescopic rod being rotatably connected to the rotating sleeve, the second telescopic rod being communicated with a connecting pipe, and hydraulic oil being injected into the second telescopic rod; a third telescopic rod fixedly connected inside the cover body, the telescopic end of the third telescopic rod being used to push the sliding plate, and the third telescopic rod being communicated with the connecting pipe to block the liquid guide pipe when the rotating sleeve rotates.

[0008] Preferably, as for the present invention, the unlocking mechanism includes: a rotating frame rotatably connected to the lower part of the cover body; a plurality of rotating rods, the number of which is the same as that of the sliding shells, all rotatably connected to the rotating frame, and the rotating rods being rotatably connected to the adjacent sliding shells; a rotating handle spline-connected to the rotating frame, a connecting ring rotatably connected to the lower part of the cover body, and the connecting ring being spline-connected to the rotating handle; a remote unlocking assembly provided on the lower part of the cover body for remotely unlocking the cover body; and a failure assembly provided inside the cover body for disabling the remote unlocking of the cover body.

[0009] Preferably, as for the present invention, the liquid guide pipe is composed of a circular ring pipe and a plurality of branch pipes. The circular ring pipe part of the liquid guide pipe is a rigid structure, and all the branch pipes of the liquid guide pipe are made of flexible materials, so as to expand the circular ring pipe of the liquid guide pipe to a plurality of branch pipes and prevent the liquid guide pipe from interfering with the rotation of the rotating frame.

[0010] Preferably, when the limiting block is located in the adjacent blind holes on the wellhead seat, the rotating rod, the sliding shell and the limiting block are located in the same vertical plane, so that the cover body can be unlocked no matter the rotating handle rotates forward or backward.

[0011] Preferably, as for the present invention, the remote unlocking assembly includes: a motor fixedly connected to the lower part of the cover body, a rotating shaft rotatably connected inside the cover body, and the output shaft of the motor and the rotating shaft being driven by a worm and worm gear; a sliding rod slidably connected to the rotating shaft, and the sliding rod being spline-connected to the connecting ring.

[0012] Preferably, the remote unlocking assembly further includes: a fixed column fixedly connected to the lower part of the lock core, the fixed column being slidably connected to both the rotating shaft and the sliding rod, and the fixed column being used to disconnect the rotating handle and the connecting ring.

[0013] As a preference of the present invention, the failure component includes: a fourth telescopic rod fixedly connected inside the cover body. The fourth telescopic rod is communicated with a first diversion pipe, and the first diversion pipe is communicated with the second telescopic rod; a connecting plate fixedly connected to the telescopic end of the fourth telescopic rod. The connecting plate is rotatably connected with the sliding rod, and hydraulic oil is filled in the fourth telescopic rod.

[0014] As a preference of the present invention, it further includes: a prying detection mechanism arranged inside the wellhead seat and used for disabling all external opening methods when the cover body is pried. The prying detection mechanism includes: a sliding frame slidably connected inside the wellhead seat. A fifth telescopic rod is fixedly connected inside the wellhead seat, and the telescopic end of the fifth telescopic rod is connected with the sliding frame through a steel wire rope. The sliding frame is used for limiting adjacent limiting blocks, and hydraulic oil is filled in the fifth telescopic rod; a second diversion pipe communicated with the fifth telescopic rod, and the second diversion pipe is communicated with the first diversion pipe.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. By the rotation of the rotating sleeve and in cooperation with the opening method of the lock core, the present invention detects whether there are illegal personnel attempting to pry open the lock core on the cover body, and then closes the liquid diversion pipe, so that the locked state of the cover body cannot be released through the lock core, increasing the difficulty of illegal intrusion and protecting the safety of the internal equipment in the cable tunnel.

[0016] 2. Through the cooperation mode of the rotating handle and the connecting ring in the unlocking mechanism, when an illegal method is used to attempt to open the lock core on the cover body, the remote signal unlocking method of the cover body is synchronously disconnected, so that the cover body cannot be opened through an external method, increasing the protection effect of the present device.

[0017] 3. The present invention detects the prying of the cover body through the sliding frame in the prying detection mechanism, and warns through the alarm to attract the attention of nearby residents, patrol personnel or the monitoring center, timely preventing illegal activities, ensuring the safety of the present device, and reducing the damage degree of the present device. Description of the Drawings

[0018] Figure 1 is a three-dimensional structural schematic diagram of the present invention; Figure 2 is a three-dimensional structural schematic diagram of the lower part structure of the cover body of the present invention; Figure 3 is a three-dimensional structural schematic diagram of the parts at the rotating frame and the rotating handle of the present invention; Figure 4 is a three-dimensional structural schematic diagram of the parts at the rotating handle and the connecting ring of the present invention; Figure 5 is a three-dimensional structural schematic diagram of the parts at the first telescopic rod and the second telescopic rod of the present invention; Figure 6Schematic three-dimensional structure diagram of the parts at the sliding rod and connecting plate of the present invention; Figure 7 Cross-sectional view of the parts at the sliding shell and sliding frame of the present invention; Figure 8 Cross-sectional view of the parts at the connecting ring and sliding rod of the present invention.

[0019] In the attached drawing reference numerals: 1 - wellhead seat, 2 - cover body, 3 - rotating sleeve, 4 - lock core, 5 - first telescopic rod, 6 - liquid guide pipe, 7 - sliding shell, 8 - limiting block, 101 - intelligent module, 21 - fixed frame, 22 - sliding plate, 23 - second telescopic rod, 24 - connecting pipe, 25 - third telescopic rod, 31 - rotating frame, 32 - rotating rod, 33 - rotating handle, 34 - connecting ring, 41 - motor, 42 - rotating shaft, 43 - sliding rod, 51 - fixed column, 61 - fourth telescopic rod, 62 - first diversion pipe, 63 - connecting plate, 71 - sliding frame, 72 - fifth telescopic rod, 73 - second diversion pipe. Detailed implementation manners

[0020] The following combines the attached Figure 1 - attached Figure 8 drawings to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts belong to the scope of protection of the present invention.

[0021] Embodiment 1: Existing intelligent manhole covers are usually equipped with electronic locks. To prevent the electronic locks from failing, a manual emergency keyhole is usually also installed for backup opening in case of emergency. However, when illegal personnel forcibly open the manhole cover by picking the lock, the lock core of the intelligent manhole cover fails due to external force, resulting in the manhole cover being illegally opened, which will threaten the safety of the cables and other valuable equipment in the cable tunnel.

[0022] An intelligent manhole cover, please refer to the attached Figure 1 - attached Figure 7As shown in the figure, it includes: a wellhead seat 1, a cover body 2 is rotatably connected to the wellhead seat 1, and an intelligent module 101 is arranged on the cover body 2; a rotating sleeve 3 is rotatably connected to the cover body 2, a lock core 4 is arranged inside the rotating sleeve 3, a first telescopic rod 5 is rotatably connected to the rotating sleeve 3, and the telescopic end of the first telescopic rod 5 is rotatably connected to the lock core 4; a liquid guide pipe 6 is communicated with the first telescopic rod 5, a plurality of sliding shells 7 are slidably connected to the lower side of the cover body 2, a limiting block 8 is slidably connected to the sliding shell 7, a plurality of blind holes are arranged on the wellhead seat 1, and the limiting block 8 limits the rotation of the cover body 2 through the adjacent blind holes on the wellhead seat 1. A plurality of sliding shells 7 are all communicated with the liquid guide pipe 6, and hydraulic oil is filled in both the first telescopic rod 5 and the sliding shell 7; a locking mechanism is arranged inside the cover body 2 and is used to make it ineffective when the lock core 4 is deflected; an unlocking mechanism is arranged at the lower part of the cover body 2 and is used to enable the operator to unlock the cover body 2 in the well. A damping is provided between the contact surfaces of the rotating sleeve 3 and the cover body 2, and this damping only offsets the deflecting force when the lock core 4 is opened by a key, and is used to make the deflecting force generated when the lock core 4 is opened by non-key drive the rotating sleeve 3 to rotate. The locking mechanism includes: a fixed frame 21 fixedly connected inside the cover body 2, the liquid guide pipe 6 penetrates through the fixed frame 21, a sliding plate 22 is slidably connected inside the fixed frame 21, a through hole is arranged on the sliding plate 22, and the through hole of the sliding plate 22 is used to communicate the liquid guide pipe 6; a second telescopic rod 23 is rotatably connected inside the cover body 2, the telescopic end of the second telescopic rod 23 is rotatably connected to the rotating sleeve 3, a connecting pipe 24 is communicated with the second telescopic rod 23, and hydraulic oil is filled in the second telescopic rod 23; a third telescopic rod 25 is fixedly connected inside the cover body 2, the telescopic end of the third telescopic rod 25 is used to push the sliding plate 22, and the third telescopic rod 25 is communicated with the connecting pipe 24 and is used to block the liquid guide pipe 6 when the rotating sleeve 3 rotates.

[0023] In the above solution, it aims to solve the problem that when illegal personnel attempt to open the intelligent manhole cover by picking the lock, the lock core 4 of the intelligent manhole cover is extremely likely to fail due to external force, resulting in the opening of the intelligent manhole cover. The intelligent module 101 is electrically connected to the signal receiver. An alarm and a signal detector are provided inside the intelligent module 101 to monitor whether there are stranded personnel near the intelligent manhole cover. The upper part of the cover body 2 is made of cast iron. The cover body 2 is a splicing part used to form a cavity at the center of the cover body 2. A protective shell (an existing part not shown in the figure) is provided on the upper side of the cover body 2. The protective shell usually covers above the lock core 4 to prevent dust, rainwater, etc. from entering the keyhole of the lock core 4. When the operator needs to insert the key into the lock core 4, only need to lift the protective shell. The intelligent module 101 is signal-connected to the remote control terminal (an existing device not shown in the figure, enabling this device to remotely control unlocking when there are staff nearby). The number of sliding shells 7 in this device can be changed according to the actual situation to enable the cover body 2 to be stably locked on the wellhead seat 1. The number of sliding shells 7 in this device is set to four, and the four sliding shells 7 are evenly distributed circumferentially. The lock core 4 is an existing mechanical lock. When the key is inserted into the lock core 4 and rotated, the internal structure of the lock core 4 rotates counterclockwise (viewed from top to bottom), and the telescopic end of the first telescopic rod 5 is pushed to contract in the state where both the lock core 4 and the rotating sleeve 3 are stationary. (The first telescopic rod 5 is an existing mechanism composed of a cylinder, a sliding rod, and a piston. The sliding rod moves in the cylinder through the piston, causing the hydraulic oil in the cylinder to flow. The sliding rod refers to the telescopic end in the subsequent description).

[0024] Working process: When using this device as the manhole cover of the cable tunnel, if the operator needs to open the cover body 2 to enter the cable tunnel for inspection, the operator can first move to the vicinity of this device, and then send a signal through the remote control terminal. After passing through the signal receiver and the intelligent module 101, the unlocking mechanism is controlled to make the four sliding shells 7 and the limit block 8 move synchronously towards the center to unlock the cover body 2. The operator can then lift the cover body 2 and enter the cable tunnel from the wellhead seat 1. Additionally, if the unlocking mechanism fails to unlock the cover body 2 after the remote control terminal sends a signal, the operator can manually insert the key into the lock core 4 and then rotate the key. The lock core 4 pushes the telescopic end of the first telescopic rod 5 to contract. The hydraulic oil in the four sliding shells 7 enters the first telescopic rod 5 through the liquid guide pipe 6. The limit block 8 moves into the sliding shell 7, and the limit block 8 moves out of the blind hole of the wellhead seat 1, unlocking the cover body 2. When the tunnel inspection is completed, the operator first covers the cover body 2, and then rotates the key in the reverse direction. The telescopic end of the first telescopic rod 5 is pulled out, the hydraulic oil in the liquid guide pipe 6 flows reversely, and the limit block 8 moves back into the blind hole of the wellhead seat 1, and the cover body 2 resumes the locked state.

[0025] If there are lawbreakers attempting to unlock the cover body 2 by prying open the lock core 4, the existing lock-prying methods usually involve first providing a rotational force and then successively releasing the locking of the limit pins in the lock core 4. When the lawbreakers deflect the lock core 4, the lock core 4 will drive the rotating sleeve 3 to rotate counterclockwise (viewed from top to bottom). The rotating sleeve 3 pushes the telescopic end of the second telescopic rod 23 to contract. The hydraulic oil in the second telescopic rod 23 enters the third telescopic rod 25 through the connecting pipe 24. The telescopic end of the third telescopic rod 25 extends and pushes the sliding plate 22. The through hole on the sliding plate 22 is misaligned with the liquid guide pipe 6, and the liquid guide pipe 6 is blocked. The four limit blocks 8 maintain the state of limiting the cover body 2. At the same time, the transmission of the electric control part in the unlocking mechanism fails. After that, whether the lawbreakers pry open the lock core 4 or not, the cover body 2 cannot be opened. Then, when the operator conducts an inspection, if both the remote signal opening and the manual key opening fail, it indicates that the device has been attempted to be opened by lawbreakers. The operator needs to enter the tunnel from the tunnel wellhead at other positions and manually unlock the cover body 2 through the unlocking mechanism from inside the wellhead, which increases the safety of the device. Finally, the operator needs to check and reset the integrity of the parts in the device, and all parts return to their initial positions.

[0026] Please refer to the attached Figure 2 - attached Figure 8As shown in the figure, the unlocking mechanism includes: a rotating frame 31, rotatably connected to the lower part of the cover body 2; a plurality of rotating rods 32, the number of which is the same as that of the sliding shells 7, all rotatably connected to the rotating frame 31, and the rotating rod 32 is rotatably connected to the adjacent sliding shell 7; a rotating handle 33, spline-connected to the rotating frame 31, a connecting ring 34 is rotatably connected to the lower part of the cover body 2, and the connecting ring 34 is spline-connected to the rotating handle 33; a remote unlocking assembly, arranged at the lower part of the cover body 2, for remotely unlocking the cover body 2; a failure assembly, arranged in the cover body 2, for disabling the remote unlocking of the cover body 2. The liquid guide pipe 6 is composed of a circular pipe and a plurality of branch pipes. The circular pipe part of the liquid guide pipe 6 is a rigid structure, and the branch pipes of the liquid guide pipe 6 are all made of soft materials, which are used to expand the circular pipe of the liquid guide pipe 6 to a plurality of branch pipes, so as to prevent the liquid guide pipe 6 from interfering with the rotation of the rotating frame 31. When the limit block 8 is located in the adjacent blind hole on the wellhead seat 1, the rotating rod 32, the sliding shell 7 and the limit block 8 are located in the same vertical plane, which is used to enable the cover body 2 to be unlocked regardless of whether the rotating handle 33 rotates forward or backward. The remote unlocking assembly includes: a motor 41, fixedly connected to the lower part of the cover body 2, a rotating shaft 42 is rotatably connected in the cover body 2, and the output shaft of the motor 41 and the rotating shaft 42 are driven by a worm and gear; a sliding rod 43, slidably connected to the rotating shaft 42, and the sliding rod 43 is spline-connected to the connecting ring 34. The remote unlocking assembly further includes: a fixing column 51, fixedly connected to the lower part of the lock core 4, and the fixing column 51 is slidably connected to both the rotating shaft 42 and the sliding rod 43. The fixing column 51 is used to disconnect the rotating handle 33 and the connecting ring 34. The failure assembly includes: a fourth telescopic rod 61, fixedly connected in the cover body 2, the fourth telescopic rod 61 is communicated with a first liquid guide pipe 62, and the first liquid guide pipe 62 is communicated with the second telescopic rod 23; a connecting plate 63, fixedly connected to the telescopic end of the fourth telescopic rod 61, and the connecting plate 63 is rotatably connected to the sliding rod 43. The fourth telescopic rod 61 is filled with hydraulic oil.

[0027] In the above solution, it is aimed to enable the cover body 2 to be electrically and automatically unlocked through a remote signal, increasing the convenience of using this device. At the same time, when there is a lock-picking behavior at the lock core 4, the transmission of the electric opening of the cover body 2 is released, making all external opening methods of the cover body 2 ineffective, and it can only be unlocked from the inside of the tunnel; the motor 41 is electrically connected to the intelligent module 101. The communication positions of the connecting pipe 24 and the first liquid guide pipe 62 with the second telescopic rod 23 are on the same side, and the hydraulic pressure in the connecting pipe 24 and the first liquid guide pipe 62 can flow to each other. The rotating shaft 42 drives the connecting ring 34 to rotate synchronously through the sliding rod 43. There is damping on the contact surface between the rotating frame 31 and the rotating handle 33, enabling the rotating handle 33 to overcome the influence of its own gravity, so that the rotating handle 33 is relatively stationary with the rotating frame 31 without external force. The axis of the rotating shaft 42 of the rotating frame 31 coincides with the central axis of the cover body 2.

[0028] Workflow: When the remote control terminal sends an unlocking signal, the intelligent module 101 starts the motor 41. The output shaft of the motor 41 drives the rotating shaft 42 to rotate through a worm and worm gear. The rotating shaft 42 drives the rotating frame 31 to rotate through the sliding rod 43, the connecting ring 34, and the rotating handle 33. The rotating frame 31 drives the four sliding shells 7 and the limiting blocks 8 to move towards the center of the wellhead seat 1 through the four rotating rods 32, unlocking the locking of the cover body 2. The operator can open the cover body 2 by himself and enter the cable tunnel for inspection. If an illegal person pries the lock core 4, a part of the hydraulic oil in the second telescopic rod 23 enters the fourth telescopic rod 61 through the first diversion pipe 62. The telescopic end of the fourth telescopic rod 61 extends and drives the sliding rod 43 to move downward through the connecting plate 63. The sliding rod 43 pushes the rotating handle 33 to move downward relative to the rotating frame 31, and the rotating handle 33 loses contact with the connecting ring 34. At this time, the operator starts the motor 41 through a signal, and the cover body 2 is not unlocked. If an illegal person uses a hydraulic device to try to damage the lock core 4 to unlock the cover body 2, during the process of the hydraulic device squeezing the lock core 4, the connection relationship between the lock core 4 and the rotating sleeve 3 is damaged, and the lock core 4 moves into the cover body 2. The lock core 4 repeats the operation of the sliding rod 43 through the fixed column 51, and the rotating handle 33 and the connecting ring 34 lose contact, and the cover body 2 still remains locked, increasing the safety of the cables and important equipment in the tunnel, and at the same time increasing the protection effect of the device. Finally, the operator can open the cover body 2 from the inside, repair the damaged parts in the device and reset all parts.

[0029] Embodiment 2: On the basis of Embodiment 1, please refer to the attached Figure 1 - attached Figure 5 and attached Figure 8 As shown, it further includes: a prying detection mechanism, which is arranged in the wellhead seat 1 and is used to make all external opening methods ineffective when the cover body 2 is pried. The prying detection mechanism includes: a sliding frame 71, which is slidably connected in the wellhead seat 1. A fifth telescopic rod 72 is fixedly connected in the wellhead seat 1. The telescopic end of the fifth telescopic rod 72 is connected to the sliding frame 71 through a steel wire rope. The sliding frame 71 is used to limit the adjacent limiting blocks 8. The fifth telescopic rod 72 is filled with hydraulic oil; a second diversion pipe 73, which is communicated with the fifth telescopic rod 72, and the second diversion pipe 73 is communicated with the first diversion pipe 62.

[0030] In the above solution, a pressure sensing sheet (an existing mechanism, not shown in the figure) is arranged at the sliding frame 71. The pressure sensing sheet is electrically connected to the intelligent module 101 and is used to detect whether the cover body 2 is pried. The sliding frame 71 in the device is located in the left part of the wellhead seat 1, so that no matter an illegal person pries the front end of the cover body 2 or the rotating connection part, the sliding frame 71 can detect the movement of the cover body 2. There is a gap between the cover body 2 and the wellhead seat 1, which is used to enable the cover body 2 to rotate stably on the wellhead seat 1 under the condition of thermal expansion and contraction of the cover body 2 due to seasonal changes.

[0031] Workflow: During the daily use of this device, the sliding frame 71 only serves as a blind hole on the wellhead seat 1 for limiting the adjacent limiting block 8. If an illegal person attempts to pry open the cover body 2 and the cover body 2 shakes upward, the cover body 2 drives the sliding frame 71 to move slightly upward through the limiting block 8, and the telescopic end of the fifth telescopic rod 72 is pulled out. The hydraulic oil in the fifth telescopic rod 72 enters the first diversion pipe 62 through the second diversion pipe 73. A part of the hydraulic oil entering the first diversion pipe 62 enters the fourth telescopic rod 61, and the other part of the hydraulic oil enters the third telescopic rod 25 through the second telescopic rod 23 and the connecting pipe 24. The telescopic ends of the fourth telescopic rod 61 and the third telescopic rod 25 extend simultaneously, the liquid guide pipe 6 is blocked, the rotating handle 33 loses contact with the connecting ring 34, and at the same time, the pressure sensing sheet on the sliding frame 71 is squeezed to cause the alarm in the intelligent module 101 to sound an alarm, enabling this device to accurately determine whether an illegal person attempts to pry open the cover body 2 according to the shaking state of the cover body 2. After that, when the operator checks this device, it can be determined that an illegal person attempts to pry open this device based on the failure of all external opening conditions of this device, facilitating the subsequent operator to retrieve relevant monitoring, reducing the risk of accidental opening, and protecting public safety.

[0032] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the present invention to only the specific implementation manners. Obviously, according to the content of this specification, many modifications and changes can be made. This specification selects and specifically describes these embodiments to better explain the principle and practical application of the present invention, so that those skilled in the art in the relevant technical field can well understand and utilize the present invention. As long as it does not deviate from the structure of the invention or exceed the protection scope of the present invention, it should fall within the protection scope of the present invention.

Claims

1. A smart manhole cover, characterized in that: include: A wellhead seat (1), a cover body (2) being rotatably connected to the wellhead seat (1), and an intelligent module (101) being arranged on the cover body (2); A rotating sleeve (3) is rotatably connected to the cover body (2), a lock core (4) is arranged inside the rotating sleeve (3), a first telescopic rod (5) is rotatably connected to the rotating sleeve (3), and a telescopic end of the first telescopic rod (5) is rotatably connected to the lock core (4); a liquid guide tube (6) connected to the first telescopic rod (5); a plurality of sliding shells (7) are slidably connected to the lower side of the cover body (2); the sliding shells (7) are slidably connected to a limit block (8); a plurality of blind holes are provided on the wellhead seat (1); the limit block (8) limits the rotation of the cover body (2) through adjacent blind holes on the wellhead seat (1); the plurality of sliding shells (7) are all connected to the liquid guide tube (6); and hydraulic oil is filled in the first telescopic rod (5) and the sliding shells (7); A locking mechanism, arranged in the cover body (2), and used to disable the lock core (4) when it is deflected; An unlocking mechanism is arranged at the lower part of the cover body (2) and is used to enable an operator to unlock the cover body (2) in the well.

2. The intelligent manhole cover according to claim 1, characterized in that: A damping is provided between the contact surfaces of the rotating sleeve (3) and the cover body (2), the damping only counteracting the deflection force when the lock core (4) is opened by a key, and is used to enable the deflection force generated when the lock core (4) is opened without a key to drive the rotating sleeve (3) to rotate.

3. The intelligent manhole cover according to claim 2, characterized in that: The locking mechanism comprises: A fixed frame (21) is fixedly connected to the cover body (2), the liquid guiding tube (6) penetrates the fixed frame (21), a sliding plate (22) is slidably connected to the fixed frame (21), a through hole is provided on the sliding plate (22), and the through hole of the sliding plate (22) is used to connect the liquid guiding tube (6); A second telescopic rod (23) is rotatably connected to the cover body (2); a telescopic end of the second telescopic rod (23) is rotatably connected to the rotating sleeve (3); the second telescopic rod (23) is connected to a connecting pipe (24); and hydraulic oil is filled in the second telescopic rod (23); A third telescopic rod (25) is fixedly connected to the cover body (2); the telescopic end of the third telescopic rod (25) is used to push the sliding plate (22); the third telescopic rod (25) is connected to the connecting tube (24) and is used to block the liquid guiding tube (6) when the rotating sleeve (3) rotates.

4. The intelligent manhole cover according to claim 3, characterized in that: The unlocking mechanism comprises: A rotating frame (31) rotatably connected to the lower part of the cover body (2); a plurality of rotating rods (32), the number of which is the same as the number of the sliding shells (7), and all of which are rotatably connected to the rotating frame (31); the rotating rods (32) are rotatably connected to adjacent sliding shells (7); A rotating handle (33) is spline-connected to the rotating frame (31); a connecting ring (34) is rotatably connected to the lower part of the cover body (2); and the connecting ring (34) is spline-connected to the rotating handle (33); A remote unlocking component, arranged at the lower part of the cover body (2), and used for remotely unlocking the cover body (2); A disabling component is arranged in the cover body (2) and is used to disable the remote unlocking of the cover body (2).

5. The intelligent manhole cover according to claim 4, characterized in that: The catheter tube (6) is composed of a circular tube and a plurality of branch tubes. The circular tube portion of the catheter tube (6) is a hard structure, and the branch tubes of the catheter tube (6) are all made of soft material, so that the circular tube of the catheter tube (6) can open up the plurality of branch tubes, thereby preventing the catheter tube (6) from interfering with the rotation of the rotating frame (31).

6. The intelligent manhole cover according to claim 4, characterized in that: When the limit block (8) is located in the adjacent blind hole on the wellhead seat (1), the rotating rod (32), the sliding shell (7) and the limit block (8) are located on the same vertical plane, so that the cover body (2) can be unlocked regardless of whether the rotating handle (33) is rotated forward or reversely.

7. The intelligent manhole cover according to claim 6, characterized in that: The remote unlocking component comprises: A motor (41) is fixedly connected to the lower part of the cover body (2), and a rotating shaft (42) is rotatably connected to the inside of the cover body (2), and a worm gear is used to drive the output shaft of the motor (41) and the rotating shaft (42); A sliding rod (43) is slidably connected to the rotating shaft (42), and the sliding rod (43) is spline-connected to the connecting ring (34).

8. The intelligent manhole cover according to claim 7, characterized in that: The remote unlocking component also includes: A fixed column (51) is fixedly connected to the lower part of the lock core (4). The fixed column (51) is slidably connected to the rotating shaft (42) and the sliding rod (43). The fixed column (51) is used to disconnect the rotating handle (33) and the connecting ring (34).

9. The intelligent manhole cover according to claim 7, characterized in that: The failed components include: a fourth telescopic rod (61) fixedly connected to the cover body (2); the fourth telescopic rod (61) is connected to a first flow guide tube (62); the first flow guide tube (62) is connected to the second telescopic rod (23); The connecting plate (63) is fixedly connected to the telescopic end of the fourth telescopic rod (61); the connecting plate (63) is rotatably connected to the sliding rod (43); and the fourth telescopic rod (61) is filled with hydraulic oil.

10. The intelligent manhole cover according to claim 9, characterized in that: Also includes: A prying detection mechanism is arranged in the wellhead seat (1) and is used to disable all external opening methods when the cover body (2) is pried, and the prying detection mechanism comprises: a sliding frame (71) slidably connected to the wellhead seat (1); a fifth telescopic rod (72) is fixedly connected to the wellhead seat (1); a telescopic end of the fifth telescopic rod (72) is connected to the sliding frame (71) via a steel rope; the sliding frame (71) is used to limit the adjacent limit blocks (8); and hydraulic oil is filled in the fifth telescopic rod (72); The second flow guiding pipe (73) is connected to the fifth telescopic rod (72), and the second flow guiding pipe (73) is connected to the first flow guiding pipe (62).

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