A smart edge IoT manhole cover for cable tunnels

Abstract

The present invention relates to the technical field of cable tunnel manhole covers, and in particular to an intelligent edge IoT manhole cover for cable tunnels. It comprises a manhole seat, the manhole seat is fixedly connected with a fixed frame with mirror distribution, the fixed frame with mirror distribution is slidably connected with a sliding member, the sliding member is rotatably connected with a manhole cover, the height of the upper side of the manhole cover is higher than the height of the upper side of the manhole seat, the manhole cover and the manhole seat are sealed and slidably matched, a buffer is arranged in the manhole seat, the manhole seat is detachably connected with a sealing member, and the sealing member is provided with an intelligent edge IoT module. The present invention adopts a method of actively adjusting the position of the manhole cover, so that when the vehicle contacts the manhole cover during fast driving, the manhole cover remains stable, quickly disperses and withstands this force in a short time, and when the vehicle contacts the manhole cover during slow driving, the manhole cover can move downward in accordance with the pressure, absorb energy, reduce direct impact, and improve the stability of vehicle driving.

Description

Technical Field

[0001] The present invention relates to the technical field of cable tunnel manhole covers, and in particular to an intelligent edge IoT manhole cover for a cable tunnel. Background Art

[0002] The manhole cover is equivalent to the ground entrance and exit of the cable tunnel. It provides a channel for maintenance personnel to enter and exit the tunnel for inspection, repair or new cables. The smart edge IoT manhole cover is an advanced technical means. It can realize the manhole cover status monitoring, prevent non-maintenance personnel from illegally opening and entering and exiting the cable tunnel at will, thereby reducing the occurrence of cable tunnel equipment theft.

[0003] The manhole covers used in cable tunnels will inevitably come into contact with vehicles traveling on the road during the placement process. When a vehicle comes into contact with the manhole cover, it will exert pressure on the manhole cover. When the pressure on the manhole cover exceeds its designed bearing limit, it will cause the manhole cover to deform, crack or even rupture. This rupture not only poses a major safety hazard to pedestrians and vehicles, but may also allow foreign objects to enter the cable tunnel, thereby threatening the reliability and safety of the power supply. Summary of the invention

[0004] In order to solve the problem that manhole covers are frequently squeezed by vehicles, causing deformation, cracking and even rupture, thus posing a serious safety hazard to passers-by and vehicles, an intelligent edge IoT manhole cover for cable tunnels is provided.

[0005] The technical solution of the present invention is as follows: a smart edge IoT manhole cover for a cable tunnel, comprising a manhole seat, the manhole seat being fixedly connected to a mirror-image fixed frame, the mirror-image fixed frame being slidably connected to sliding members, the mirror-image sliding members being rotatably connected to the manhole cover, the height of the upper side of the mirror-image manhole cover being higher than the height of the upper side of the manhole seat, the mirror-image manhole covers being sealed and slidably matched with the manhole seat, a buffer member being arranged in the manhole seat, the manhole seat being detachably connected to a sealing member, the sealing member being provided with a smart edge IoT module, the sealing member being slidably connected to a mirror-image first limiting rod, a tension spring being fixedly connected between the first limiting rod and the sealing member, the manhole seat being fixedly connected to a mirror-image sealing shell, a piston rod being slidably connected to the sealing shell, a spring being arranged between the sealing shell and the adjacent piston rod, a non-Newtonian fluid being stored in the sealing shell, a gasket being fixedly connected to the upper side of the piston rod and being in contact with the adjacent first limiting rod, and the gasket being slidably matched with the manhole seat.

[0006] Furthermore, the buffer component is composed of a mirror-distributed partition, a plurality of elastic components, a mirror-distributed first bellows and a second bellows, the back sides of the mirror-distributed partition are respectively in contact with the mirror-distributed manhole cover and the sealing component, a plurality of the elastic components are fixedly connected to the partition on the lower side, a plurality of the elastic components are in contact with the partition on the upper side, the cross-section of the elastic component is V-shaped, the mirror-distributed first bellows are fixedly connected to the mirror-distributed partition, the facing sides of the mirror-distributed partition are fixedly connected to the second bellows, all the elastic components and the mirror-distributed first bellows are located in the second bellows, and no two adjacent elastic components are in contact.

[0007] Furthermore, the sealing member is slidably connected to a first extrusion frame with a mirror-image distribution, the first extrusion frame is extruded and matched with the adjacent first limiting rod, the first extrusion frames with a mirror-image distribution are all fixedly connected to the adjacent partitions, the sealing member is slidably connected to a cross-shaped rod with a mirror-image distribution, the cross-shaped rods with a mirror-image distribution are all located between the first extrusion frames with a mirror-image distribution, the gravity of the buffer member is greater than the supporting force of the adjacent tension springs of the first limiting rods with a mirror-image distribution, the lower sides of the cross-shaped rods with a mirror-image distribution are commonly fixedly connected with a connecting member, and all the first limiting rods, all the first extrusion frames and all the cross-shaped rods are located on the same vertical plane.

[0008] Furthermore, a mirror-distributed rotating part is rotatably connected inside the sealing part, the mirror-distributed rotating part and the mirror-distributed first limiting rod are cross-distributed, the well seat is provided with a mirror-distributed lock core, the mirror-distributed lock cores all penetrate the adjacent elastic parts and the mirror-distributed partitions and slide with the three, the lock core is fixedly connected to the adjacent rotating part, a mirror-distributed magnetic part is fixedly connected to the well seat on one side close to the mirror-distributed rotating part, the well seat is fixedly connected to an elliptical elastic part with a mirror-distribution, the elliptical elastic part is fixedly connected to the adjacent magnetic part, the magnetic part is magnetically connected to a sliding frame, the mirror-distributed sliding frames are all extrusion-fitted with the sealing part, and the sliding frame is limitedly fitted with the adjacent rotating part.

[0009] Furthermore, the sealing member is slidably connected to a second limiting rod with a mirror-distributed arrangement, the second limiting rod is in contact and cooperation with the adjacent sliding frame, a spring is fixedly connected between the second limiting rod and the sealing member, a second extrusion frame with a mirror-distributed arrangement is fixedly connected to the upper side of the connecting member, the second extrusion frames with a mirror-distributed arrangement all pass through the sealing member and slidably cooperate with it, and the second extrusion frame is extruded and cooperated with the adjacent second limiting rod.

[0010] Furthermore, it also includes a gas detection module, which is arranged on the sealing member, and the sealing member is slidably connected with an air guide tube, the mirror-distributed manhole covers are all sealed and slidably matched with the air guide tube, a spring is arranged between the air guide tube and the sealing member, the air guide tube passes through the buffer member and slidably matches therewith, the upper side of the air guide tube is fixedly connected and connected with an air guide cover, the air guide cover is fixedly connected and connected with an air guide shell distributed in a ring array, the inner side of the air guide shell has inconsistent thickness, and an air exhaust member is arranged in the air guide cover.

[0011] Furthermore, the upper side of the air guide tube is rotatably connected to a blocking shell that rotatably cooperates with the air guide cover, and the blocking shell is provided with air outlets distributed in a circular array. The air outlets on the blocking shell are connected to the adjacent air guide shells, and the blocking shell cooperates with the air guide shells distributed in a circular array for shielding.

[0012] Furthermore, a sliding plate is connected to the air guide tube in a limited sliding manner, and the sliding plate is provided with a plurality of air outlets. An extrusion piece is fixedly connected to the upper side of the sliding plate, and extrusion pins distributed in a ring array are fixedly connected to the upper side of the extrusion piece. A rotating shell is fixedly connected to the lower side of the blocking shell, and a spring is provided between the rotating shell and the extrusion piece. An inclined slide groove distributed in a ring array is provided in the rotating shell, and the extrusion pins on the extrusion piece are extruded and matched with adjacent inclined slide grooves in the rotating shell.

[0013] Furthermore, the air guide tube is provided with air outlet channels which are connected thereto and distributed in a circular array, the sliding plate is used to block the lower side of the air outlet channels distributed in the circular array, and the air outlet channels distributed in the circular array are used to balance the pressure in the air guide tube.

[0014] Furthermore, a mirror-distributed U-shaped rod is fixedly connected to the lower side of the sliding plate, and the back sides of the mirror-distributed U-shaped rods pass through the sealing member and slideably cooperate with it. The side of the U-shaped rod away from the air guide tube is limitedly cooperated with the adjacent first limiting rod, and the air guide tube is slidably connected with a mirror-distributed baffle, and the baffle is fixedly connected to the adjacent U-shaped rod.

[0015] The beneficial effects of the present invention are as follows: the present invention adopts a method of actively adjusting the position of the manhole cover, so that when the vehicle contacts the manhole cover during fast driving, the manhole cover remains stable, quickly disperses and withstands the force in a short time, and when the vehicle contacts the manhole cover during slow driving, the pressure applied is relatively uniform and continuous because the wheel and the manhole cover are in contact for a long time. Therefore, the present device adopts a method of lowering the current height of the manhole cover, so that the manhole cover can move downward in accordance with the pressure under a small and continuous force, thereby absorbing energy, reducing direct impact, and improving the stability of vehicle driving, thereby reducing damage to the manhole cover;

[0016] When the inspection inside the cable tunnel is completed, the magnetic attraction of the magnetic attraction piece and the sliding frame facilitates the personnel to push out the seal and its accessories in the cable tunnel, thereby achieving the effect of pushing the seal upward in the cable tunnel in a keyless manner;

[0017] The present invention completes the exhaust in the cable tunnel without opening the manhole cover, and actively locks the manhole cover during the exhaust process. During the exhaust process of the cable tunnel, maintenance personnel cannot open the manhole cover, thereby ensuring the health of the maintenance personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a perspective view of the three-dimensional structure of the present invention;

[0019] Figure 2 A bottom view of the three-dimensional structure of the present invention;

[0020] Figure 3 It is a three-dimensional structural cross-sectional view of the well seat of the present invention;

[0021] Figure 4 It is a three-dimensional structural cross-sectional view of the sealing member of the present invention;

[0022] Figure 5 It is a three-dimensional structural cross-sectional view of the well seat and the sealing member of the present invention;

[0023] Figure 6 is a three-dimensional structural cross-sectional view of the first limiting rod of the present invention;

[0024] Figure 7 A three-dimensional structural cross-sectional view of the well seat and the sealing member of the present invention from another perspective;

[0025] Figure 8 is a three-dimensional structural cross-sectional view of the second limiting rod of the present invention;

[0026] Fig. 9 It is a three-dimensional structural cross-sectional view of the air guide tube of the present invention;

[0027] Fig.10 It is a sectional exploded view of the three-dimensional structure of the blocking shell and 51-air guide cover of the present invention.

[0028] Marked in the figure: 1-intelligent edge IoT module, 10-well seat, 11-fixed frame, 12-sliding part, 13-well cover, 14-buffer part, 141-partition, 142-elastic part, 143-first bellows, 144-second bellows, 15-seal, 16-first limit rod, 17-sealing shell, 18-piston rod, 19-gasket, 20-first extrusion frame, 21-cross rod, 22-connecting part, 30-rotating part, 31-lock cylinder, 32-magnetic part, 33-sliding frame, 40-second limit rod, 41-second extrusion frame, 5-gas detection module, 50-air guide tube, 51-air guide cover, 52-air guide shell, 53-exhaust part, 60-blocking shell, 70-sliding plate, 71-extrusion part, 72-rotating shell, 80-air outlet channel, 90-U-shaped rod, 91-baffle. DETAILED DESCRIPTION

[0029] The present invention will be further described below in conjunction with specific embodiments. The illustrative embodiments and descriptions of the present invention are used to explain the present invention but are not intended to limit the present invention.

[0030] In order to solve the problem that manhole covers are frequently squeezed by vehicles, causing deformation, cracking and even rupture, thereby posing a serious safety hazard to passers-by and vehicles, the present invention adopts a method of actively adjusting the position of the manhole cover so that when the vehicle contacts the manhole cover during fast driving, the manhole cover remains stable, quickly disperses and withstands this force in a short time; when the vehicle contacts the manhole cover during slow driving, the pressure applied is relatively uniform and continuous due to the long contact time between the wheels and the manhole cover. Therefore, the present device adopts a method of lowering the current height of the manhole cover, thereby allowing the manhole cover to move downward in accordance with the pressure under a small and continuous force, thereby absorbing energy, reducing direct impact, and improving the stability of vehicle driving, thereby reducing damage to the manhole cover.

[0031] Embodiment 1: A smart edge IoT manhole cover for a cable tunnel, such as Figure 1-Figure 6 As shown, it includes a well seat 10, and the well seat 10 is fixedly connected with two fixed frames 11 distributed in left and right mirror images, and the two fixed frames 11 distributed in left and right mirror images are both limitedly slidably connected with sliding members 12, and the two sliding members 12 distributed in left and right mirror images are both limitedly rotatably connected with well covers 13, and the upper sides of the two well covers 13 distributed in left and right mirror images are higher than the upper side of the well seat 10, and the height of the upper sides of the two well covers 13 distributed in left and right mirror images is higher than the height of the upper side of the well seat 10, and the two well covers 13 distributed in left and right mirror images are sealed and slidably matched with the well seat 10, and the two well covers 13 distributed in left and right mirror images present a well seat 10. Figure 1After the state is in, the external environment will not affect the environment in the cable tunnel. A buffer 14 is arranged in the well seat 10. The buffer 14 is used to provide buffering for the two well covers 13 distributed in left and right mirror images, and share the pressure on the two well covers 13 distributed in left and right mirror images. The well seat 10 is detachably connected with a seal 15, and the seal 15 is provided with an intelligent edge IoT module 1. The seal 15 is limitedly slidably connected with two first limit rods 16 distributed in left and right mirror images. A tension spring is fixedly connected between the first limit rod 16 and the seal 15, and this tension spring is used to drive the adjacent first limit rod 16 to reset. After the seal 15 is located in the well seat 10, the tension spring adjacent to the first limit rod 16 is in a stretched state. The well seat 10 is fixedly connected with two sealing shells 17 distributed in left and right mirror images. The sealing shell 17 is limitedly sealed and slidably connected with a piston rod 18. The diameter of the lower side of the piston rod 18 is smaller than the diameter inside the adjacent sealing shell 17. The sealing shell 1 A spring is arranged between the inner and adjacent piston rods 18 of the sealing shell 17, and the spring is used to drive the adjacent piston rods 18 to reset and move. Non-Newtonian fluid is stored in the sealing shell 17. A gasket 19 that contacts and cooperates with the adjacent first limiting rod 16 is fixedly connected to the upper side of the piston rod 18. The gasket 19 slides with the well seat 10. When the vehicle travels quickly and contacts the two manhole covers 13 distributed in left and right mirror images, the piston rod 18 quickly squeezes the non-Newtonian fluid in the adjacent sealing shell 17, so that when the vehicle contacts all the manhole covers 13 during fast driving, all the manhole covers 13 remain stable, quickly disperse and withstand this force in a short time, and when the vehicle travels slowly and contacts the two manhole covers 13 distributed in left and right mirror images, the piston rod 18 slowly squeezes the non-Newtonian fluid in the adjacent sealing shell 17, so that the non-Newtonian fluid is squeezed, thereby absorbing energy, reducing direct impact, improving the stability of vehicle driving and reducing noise.

[0032] like Figure 3-Figure 6 As shown, the buffer member 14 is composed of two partitions 141 distributed in mirror images, a plurality of elastic members 142 of different lengths, a first bellows 143 and a second bellows 144 distributed in mirror images, a plurality of elastic members 142 are fixedly connected to the partition 141 on the lower side, a plurality of elastic members 142 are in contact with the partition 141 on the upper side, the cross section of the elastic member 142 is V-shaped, the two first bellows 143 distributed in mirror images on the left and right sides are fixedly connected to the two partitions 141 distributed in mirror images on the upper and lower sides, and the facing sides of the two partitions 141 distributed in mirror images on the upper and lower sides are fixedly connected to the first bellows 143 and the second bellows 144. The two bellows 144 are fixedly connected, and all the elastic members 142 and the first bellows 143 in mirror distribution are located in the second bellows 144. No two adjacent elastic members 142 are in contact with each other. The deformation of the elastic members 142 can buffer the initial contact between the vehicle and all the manhole covers 13, thereby preventing the tires of the vehicle from being deformed due to hard obstruction when the vehicle initially contacts all the manhole covers 13. When the distance between the two upper and lower mirror-distributed partitions 141 is not shortened (all the manhole covers 13 are not squeezed at this time), no two adjacent elastic members 142 are in contact with each other.

[0033] like Figure 4-Figure 6 As shown, the seal 15 is slidably connected with two first extrusion frames 20 distributed in left and right mirror images, the first extrusion frames 20 are provided with inclined surfaces, the first limiting rod 16 is provided with inclined surfaces, the inclined surfaces of the first limiting rod 16 are pressed and matched with the inclined surfaces of the adjacent first extrusion frames 20, after the seal 15 is located in the well seat 10, the first limiting rod 16 enters the well seat 10, and the tension spring adjacent to the first limiting rod 16 is in a stretched state, the two first extrusion frames 20 distributed in left and right mirror images are fixedly connected to the adjacent partitions 141, and the seal 15 is limitedly slidably connected with two crosses distributed in left and right mirror images The two cross-shaped rods 21 in the left and right mirror distribution are located between the two first extrusion frames 20 in the left and right mirror distribution. The gravity of the buffer 14 is greater than the supporting force of the adjacent tension springs of the first limit rods 16 in the left and right mirror distribution, so that after the buffer 14 and the seal 15 are fitted, the first limit rod 16 will not slide toward the side close to the axis of the seal 15 under the action of the adjacent tension springs. The lower sides of the two cross-shaped rods 21 in the left and right mirror distribution are commonly fixed with a connecting member 22, and all the first limit rods 16, all the first extrusion frames 20 and all the cross-shaped rods 21 are located on the same vertical plane.

[0034] like Figure 2 , Figure 7 and Figure 8 As shown, the seal 15 is rotatably connected with two rotating members 30 in front and back mirror image distribution, the two rotating members 30 in front and back mirror image distribution and the two first limit rods 16 in left and right mirror image distribution are cross-staggered, the well seat 10 is provided with two lock cores 31 in front and back mirror image distribution, the mirror image distribution lock cores 31 all penetrate the adjacent elastic member 142 and the mirror image distribution partition 141 and slide with the three, the lock core 31 is fixedly connected with the adjacent rotating member 30, the well seat 10 is fixedly connected with two magnetic suction members 32 in front and back mirror image distribution, and the magnetic suction member 31 is fixedly connected with the magnetic suction member 31. 2 is a magnet, the well seat 10 is fixed with two elliptical elastic members respectively fixed with the two magnetic suction members 32 in the front and rear mirror distribution, the magnetic suction member 32 is magnetically connected with a sliding frame 33, the sliding frame 33 is made of iron, the two sliding frames 33 in the front and rear mirror distribution are squeezed and matched with the sealing member 15, and the sealing member 15 will squeeze the two sliding frames 33 in the front and rear mirror distribution during the downward movement, so that the two sliding frames 33 in the front and rear mirror distribution move downward synchronously with the sealing member 15, and the sliding frame 33 is limitedly matched with the adjacent rotating member 30.

[0035] like Figure 7 and Figure 8As shown, the sealing member 15 is limitedly slidably connected with two second limiting rods 40 distributed in front and back mirror images, and a trapezoidal groove is arranged in the second limiting rod 40, and the second limiting rod 40 contacts and cooperates with the adjacent sliding frame 33, and a spring is fixedly connected between the second limiting rod 40 and the sealing member 15, and this spring is used to drive the second limiting rod 40 to reset and move, and the upper side of the connecting member 22 is fixedly connected with two second extrusion frames 41 distributed in front and back mirror images, and an inclined surface is arranged on the upper side of the second extrusion frame 41, and the inclined surface on the second extrusion frame 41 is extruded and cooperated with the inclined surface of the trapezoidal groove in the adjacent second limiting rod 40, and when the second extrusion frame 41 extrudes the adjacent second limiting rod 40, the second limiting rod 40 drives the adjacent sliding frame 33 to move toward the axial direction of the sealing member 15, so that the sliding frame 33 actively breaks away from the contact with the adjacent magnetic attraction member 32, and the two second extrusion frames 41 distributed in front and back mirror images both pass through the sealing member 15 and slide with it, and the second extrusion frame 41 is extruded and cooperated with the adjacent second limiting rod 40.

[0036] When the device is needed to be applied in a cable tunnel, the maintenance personnel can bury the device at the required position for the work. After the burying is completed, the upper side of the manhole seat 10 is at the same horizontal plane as the ground. When a vehicle passes through the upper side of the device, the vehicle squeezes all the manhole covers 13. At this time, all the manhole covers 13 drive the two sliding members 12 to move downward at the same time. In the process of rapid downward movement of all the manhole covers 13, the upper partition 141 is squeezed. The upper partition 141 transfers the pressure to the lower partition 141 through all the elastic members 142 (the second bellows 144 and the two first bellows 143 are squeezed during the movement of the upper partition 141). All the elastic members 142 are deformed after being subjected to the pressure, so that the upper side of the elastic member 142 diffuses to the surroundings, and the adjacent sides of two adjacent elastic members 142 are in contact. Through the deformation of the elastic member 142, buffering is achieved when the vehicle initially contacts all the manhole covers 13, so as to avoid deformation of the vehicle's tires after being hard-blocked when the vehicle initially contacts all the manhole covers 13.

[0037] When the pressure exerted on two adjacent elastic members 142 exceeds the supporting force provided by the two adjacent elastic members 142 when they are in contact, the two adjacent elastic members 142 continue to be squeezed, and at this time all the elastic members 142 are deformed to achieve further buffering (this situation is suitable for vehicles with heavier weight).

[0038] When a vehicle travels rapidly on the upper side of the device, the partition 141 moves downward and rapidly drives the seal 15 and the two first limit rods 16 and their accessory parts to move downward at the same time. Taking the downward movement of one of the first limit rods 16 as an example, the first limit rod 16 rapidly squeezes the adjacent gasket 19 during the downward movement, so that the gasket 19 drives the adjacent piston rod 18 to move rapidly downward, and the piston rod 18 rapidly squeezes the non-Newtonian fluid in the adjacent sealing shell 17, and utilizes the characteristics of the non-Newtonian fluid itself (when the non-Newtonian fluid is subjected to a rapid impact force, the non-Newtonian fluid itself will become hard), so that when the vehicle comes into contact with all the manhole covers 13 during rapid driving, all the manhole covers 13 remain stable, and quickly disperse and withstand this force in a short time.

[0039] When the vehicle travels slowly on the upper side of the device, the partition 141 slowly drives the seal 15 and the two first limit rods 16 and their accessory parts to move downward at the same time. During the downward movement of the first limit rod 16, the adjacent gasket 19 is slowly squeezed, so that the gasket 19 drives the adjacent piston rod 18 to move slowly downward, and the piston rod 18 slowly squeezes the non-Newtonian fluid in the adjacent sealing shell 17. By utilizing the characteristics of the non-Newtonian fluid itself (when the non-Newtonian fluid is subjected to a slow impact force, the non-Newtonian fluid itself will become soft), the piston rod 18 can move downward and squeeze the adjacent spring, so that when the vehicle comes into contact with all the manhole covers 13 during slow driving, all the manhole covers 13 are allowed to move downward in accordance with the pressure under a small and continuous force, thereby absorbing energy, reducing direct impact, improving the stability of vehicle driving and reducing noise.

[0040] When the sealing member 15 moves downward, all the rotating members 30 , all the magnetic members 32 and their accessory parts are driven to move downward, so that the elliptical elastic member adjacent to the magnetic member 32 is deformed.

[0041] When the vehicle no longer squeezes all the manhole covers 13, all the elastic members 142 are reset, so that the upper partition 141 drives all the manhole covers 13 to move upward, and all the manhole covers 13 drive the adjacent sliding members 12 to move upward. Under the action of the spring in the sealing shell 17, the adjacent sealing shells 17, the adjacent gaskets 19 and the adjacent first limiting rods 16 are driven to move upward and reset. The first limiting rod 16 drives the sealing member 15 to move upward synchronously, and the sealing member 15 drives the lower partition 141 to move upward, so that the elliptical elastic member adjacent to the magnetic attraction member 32 is no longer deformed. Through the above steps, the above-mentioned parts are moved to Figure 5 Status in.

[0042] When the vehicle contacts all the manhole covers 13 again, the above-mentioned actions are repeated.

[0043] When it is necessary to open all the manhole covers 13 and carry out maintenance or daily inspection of the cable tunnel, the maintenance personnel open all the manhole covers 13 in turn, rotate all the manhole covers 13 along the adjacent sliding members 12 to a vertical state, and then use the key to open the two lock cylinders 31 in turn (the opening method of the lock cylinders 31 is consistent with the unlocking method in the prior art). After the two lock cylinders 31 are opened by the key, the two lock cylinders 31 drive the two rotating members 30 to rotate. When the rotating member 30 rotates to 90°, it disengages from the limiting cooperation with the adjacent sliding frame 33, thereby releasing the limiting of the sealing member 15.

[0044] After the limiting of the seal 15 is released, the maintenance personnel put the tool into the two first bellows 143 [the shape inside the first bellows 143 is in accordance with the shape required for the work (which can be understood as a special shape, and the tool proposed above is also a special tool), and the figure is only an example]. After the tool enters the two first bellows 143, the maintenance personnel pulls the tool upward so that the tool preferentially drives the two first bellows 143, the two partitions 141 and their accessory parts to move upward. In the process of the lower partition 141 moving upward, the two first extrusion frames 20 are driven to move synchronously. In the process of the movement of the first extrusion frame 20, the adjacent first limiting rod 16 is no longer squeezed. Under the action of the adjacent tension spring, the first limiting rod 16 moves toward the axis of the seal 15 and gradually breaks away from the contact with the adjacent gasket 19.

[0045] When the first limiting rod 16 is out of contact with the adjacent gasket 19, the limiting of the seal 15 is released, so that when the lower partition 141 moves upward, the two cross rods 21 are in contact with the seal 15, thereby driving the seal 15 and its accessory parts to move upward synchronously. During the upward movement of the seal 15, the two rotating parts 30 are no longer in contact with the adjacent sliding frames 33, and the two second limiting rods 40 are no longer in contact with the two sliding frames 33.

[0046] When the seal 15 and its accessory parts are moved to a position where they are not in contact with the well seat 10, the maintenance personnel place the buffer 14 and its accessory parts in a position where they do not interfere with the maintenance and daily inspection of the cable tunnel, and then the maintenance personnel perform maintenance and daily inspection of the cable tunnel.

[0047] When the maintenance personnel complete the inspection and daily inspection of the cable tunnel, the maintenance personnel manipulate the tools and put the seal 15 and the parts thereon back into the manhole seat 10. After the seal 15 and the parts thereon are moved to the lower side of the seal 15 and fit with the two sliding frames 33, the two second limit rods 40 contact the two sliding frames 33, and the maintenance personnel use the key to close the two lock cylinders 31 in turn. After the two lock cylinders 31 are closed by the key, the two lock cylinders 31 drive the two rotating parts 30 to rotate in the opposite direction. When the rotating parts 30 rotate 90° in the opposite direction, the adjacent sliding frames 33 are limited, thereby achieving the limitation of the seal 15. After completing the above operations, the maintenance personnel can close all the manhole covers 13.

[0048] When the maintenance personnel need to open all the manhole covers 13 from the cable tunnel, the maintenance personnel push the connecting piece 22 upward, so that the connecting piece 22 drives the two second extrusion frames 41 and the two cross rods 21 and the parts thereon to move upward, and the two second extrusion frames 41 respectively squeeze the adjacent second limit rods 40 during the upward movement (the adjacent springs are squeezed during the movement of the second limit rods 40, and the inclined surfaces of the second extrusion frames 41 squeeze the inclined surfaces of the adjacent second limit rods 40), so that the second limit rods 40 drive the adjacent sliding frames 33 to move in a direction away from the adjacent magnetic suction parts 32, thereby making the sliding frames 33 break away from the contact with the adjacent magnetic suction parts 32.

[0049] When the sliding frame 33 is out of contact with the adjacent magnetic attraction member 32, the two cross-shaped rods 21 move upward, causing the buffer member 14 to squeeze all the manhole covers 13, or other maintenance personnel open all the manhole covers 13 from the outside first. The buffer member 14 moves upward, driving the two first extrusion frames 20 to move upward synchronously, so that the two first extrusion frames 20 no longer squeeze the adjacent first limiting rods 16. The first limiting rod 16 is reset and moved under the action of the adjacent tension spring (the specific movement process can refer to the above process). When the first limiting rod 16 moves into the sealing member 15, the maintenance personnel push out the sealing member 15 and its accessories in the cable tunnel, thereby realizing the keyless pushing of the sealing member 15 upward in the cable tunnel.

[0050] When the seal 15 and its accessory parts need to be put back into the well seat 10, the maintenance personnel remove the two sliding frames 33 and put them back into the two magnetic parts 32 to complete the resetting of the sliding frames 33. The subsequent placement process of the seal 15 and its accessory parts can be repeated as above.

[0051] Cables will generate heat when operating under high load or when a local fault occurs. High temperature environment may accelerate the decomposition of cable materials and release harmful gases, such as hydrogen sulfide and ethylene oxide. When maintenance personnel enter the cable tunnel for maintenance or daily inspections, they need to open the manhole cover first and use exhaust equipment to assist in removing harmful gases from the cable tunnel. In the process of extracting harmful gases from the cable tunnel, maintenance personnel are required to continuously and actively detect the concentration of harmful gases until the concentration of harmful gases is reduced to an environment that provides maintenance personnel with safe breathing. In the above-mentioned process, if the equipment for detecting the concentration of harmful gases has an error and causes the maintenance personnel to misjudge, the maintenance personnel rashly entering the cable tunnel will cause damage to the maintenance personnel's health.

[0052] In order to solve the above-mentioned problems, the present invention completes the exhaust in the cable tunnel without opening the manhole cover, and actively locks the manhole cover during the exhaust process. During the exhaust process of the cable tunnel, maintenance personnel cannot open the manhole cover, thereby ensuring the health of the maintenance personnel.

[0053] Embodiment 2: Based on embodiment 1, Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 7 , Fig. 9 and 10 As shown, a gas detection module 5 is also included. The gas detection module 5 is used to detect the content of harmful gases in the cable tunnel. The gas detection module 5 is arranged on the sealing member 15. The sealing member 15 is sealingly and slidably connected with the air guide 50. The two manhole covers 13 distributed in the left and right mirror images are both sealed and slidably matched with the air guide 50. A spring is arranged between the air guide 50 and the sealing member 15. When the vehicle presses the air guide 50, the air guide 50 can move downward along the sealing member 15 and the two manhole covers 13 distributed in the left and right mirror images. When the vehicle no longer presses the air guide 50, the air guide 50 can move upward along the sealing member 15 and the two manhole covers 13 distributed in the left and right mirror images under the action of the adjacent springs. The air guide tube 50 passes through the buffer member 14 and is sealed and slidably matched therewith. The upper side of the air guide tube 50 is fixedly connected and connected with an air guide cover 51. The outer side of the air guide cover 51 is fixedly connected and connected with an air guide shell 52 distributed in a ring array. The diameter of the air guide tube 50 is larger than the diameter of the "circle" formed by the air guide shells 52 distributed in the ring array. The thickness of the inner side of the air guide shell 52 is inconsistent. The thickness of the opposite sides of the air guide shells 52 distributed in the ring array is greater than the thickness of the back side of the air guide shells 52 distributed in the ring array, which is used to speed up the speed of the air guide shell 52 ejecting gas. An exhaust piece 53 is arranged in the air guide cover 51. The exhaust piece 53 is an exhaust fan. The exhaust piece 53 is electrically connected to the smart edge IoT module.

[0054] like Fig. 9 and Fig.10As shown, the upper side of the air guide tube 50 is limitedly rotatably connected to a blocking shell 60 which is sealed and rotatably matched with the air guide cover 51. The blocking shell 60 is provided with air outlets distributed in a circular array. The air outlets on the blocking shell 60 are connected with the adjacent air guide shell 52. When the air outlets on the blocking shell 60 are connected with the adjacent air guide shell 52, the gas in the air guide tube 50 can flow out through the air outlets on the blocking shell 60 and the adjacent air guide shell 52. The blocking shell 60 is matched with the air guide shells 52 distributed in a circular array for shielding.

[0055] like Fig. 9 and Fig.10 As shown, the air guide tube 50 is limitedly and slidingly connected with a sliding plate 70, and the sliding plate 70 is provided with a plurality of air outlets. An extrusion piece 71 is fixedly connected to the upper side of the sliding plate 70, and an extrusion pin distributed in a ring array is fixedly connected to the upper side of the extrusion piece 71. A rotating shell 72 is fixedly connected to the lower side of the blocking shell 60. A spring is provided between the rotating shell 72 and the extrusion piece 71, and this spring is used to drive the extrusion piece 71 to reset and move. An inclined slide groove distributed in a ring array is provided in the rotating shell 72. The extrusion pin on the extrusion piece 71 is squeezed and matched with the adjacent inclined slide groove in the rotating shell 72. The rotating shell 72 is rotated by the cooperation of the extrusion pin on the extrusion piece 71 and the adjacent inclined slide groove in the rotating shell 72.

[0056] like Fig. 9 and Fig.10 As shown, the air duct 50 is provided with an air outlet channel 80 which is connected thereto and distributed in a circular array. The air outlet channel 80 distributed in the circular array is C-shaped. The sliding plate 70 is used to block the lower side of the air outlet channel 80 distributed in the circular array. The sliding range of the sliding plate 70 is located in the lower middle side of the air outlet channel 80 distributed in the circular array. The air outlet channel 80 distributed in the circular array is used to balance the pressure in the air duct 50.

[0057] like Figure 5 , Figure 6 and Fig. 9 As shown, two U-shaped rods 90 distributed in left and right mirror images are fixedly connected to the lower side of the sliding plate 70, and the back sides of the two U-shaped rods 90 distributed in left and right mirror images pass through the sealing member 15 and slide with it, and the back sides of the two U-shaped rods 90 distributed in left and right mirror images are respectively limited and cooperated with the adjacent first limit rods 16, and the air guide tube 50 is slidably connected with a baffle plate 91 distributed in left and right mirror images, and the baffle plate 91 is fixedly connected to the adjacent U-shaped rod 90. When the U-shaped rod 90 is inserted into the adjacent first limit rod 16, the first limit rod 16 will not slide.

[0058] When the gas detection module 5 detects that the concentration of harmful gas in the cable tunnel is too high, the gas detection module 5 transmits an electrical signal to the exhaust member 53, so that the exhaust member 53 extracts the gas in the cable tunnel. The gas in the cable tunnel enters the air guide tube 50 after being extracted by the exhaust member 53, and moves upward from the air guide tube 50. The upward moving part of the gas passes through all the air outlets on the sliding plate 70, and the other part of the gas drives the sliding plate 70 to move upward. The sliding plate 70 drives all the U-shaped rods 90 and the baffle plate 91 to move upward along the air guide tube 50. During the upward movement of the U-shaped rod 90, it is stuck in the adjacent first limit rod 16, thereby actively limiting the position of the adjacent first limit rod 16, so that the first limit rod 16 will not be driven and moved by the adjacent tension spring, thereby achieving the effect that the maintenance personnel cannot remove the sealing member 15 when the exhaust member 53 is exhausting air.

[0059] When the sliding plate 70 is pushed upward by the gas, the extrusion member 71 is driven upward (the adjacent spring is squeezed during the movement of the extrusion member 71), and all the extrusion pins on the extrusion member 71 squeeze all the inclined grooves in the rotating shell 72, so that the rotating shell 72 drives the blocking shell 60 to rotate. After the extrusion member 71 moves to the point where all the extrusion pins on it are located on the upper side of all the inclined grooves in the rotating shell 72, the blocking shell 60 releases the shielding of all the air guide shells 52, and all the air outlets on the blocking shell 60 are respectively connected to all the air guide shells 52, and the air is discharged by the air guide shell 52. Under the effect of the different thickness of the inner side of the air guide shell 52, the gas is accelerated to prevent rainwater from flowing back into the air guide tube 50 through the air guide shell 52 when it rains.

[0060] When the sliding plate 70 moves upward, the lower sides of all the air outlet channels 80 are no longer blocked, so that part of the gas in the air guide tube 50 can flow through all the air outlet channels 80, thereby stabilizing the pressure in the air outlet channels 80.

[0061] When the gas is exhausted, the gas detection module 5 transmits an electrical signal to the intelligent edge IoT module 1, and the intelligent edge IoT module 1 controls the exhaust member 53 to stop extracting the gas in the cable tunnel. The extrusion member 71 drives the sliding plate 70 to reset and move under the action of the adjacent spring. During the downward movement of the extrusion member 71, all the extrusion pins on the extrusion member 71 cooperate with all the inclined grooves in the rotating shell 72, so that the rotating shell 72 drives the blocking shell 60 to reset and rotate along the upper side of the air guide tube 50. When all the extrusion pins on the extrusion member 71 move to Fig.10 After the state is reached, the blocking shell 60 covers all the air guide shells 52, so that the upper side of the air guide tube 50 remains sealed, preventing foreign matter from entering the air guide tube 50 and entering the cable tunnel along the air guide tube 50, thereby affecting the normal operation in the cable tunnel.

[0062] During the downward reset movement of the sliding plate 70, all the U-shaped rods 90 and the baffles 91 are driven to move downward along the air guide tube 50. During the downward movement of the U-shaped rod 90, it no longer contacts the adjacent first limit rod 16, thereby releasing the limit on the adjacent first limit rod 16, so that it is convenient for maintenance personnel to remove the seal 15 and perform maintenance or daily inspections on the cable tunnel. The removal process of the seal 15 can be repeated as mentioned in Example 1.

[0063] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A smart edge IoT manhole cover for a cable tunnel, characterized in that: The invention comprises a well seat (10), wherein the well seat (10) is fixedly connected to a fixed frame (11) of mirror-image distribution, wherein sliding members (12) are slidably connected inside the fixed frame (11) of mirror-image distribution, wherein the sliding members (12) of mirror-image distribution are rotatably connected to a well cover (13), wherein the height of the upper side of the well cover (13) of mirror-image distribution is higher than the height of the upper side of the well seat (10), wherein the well cover (13) of mirror-image distribution is sealingly slidably matched with the well seat (10), wherein a buffer member (14) is arranged inside the well seat (10), wherein the well seat (10) is detachably connected to a sealing member (15), wherein the sealing member (15) is provided with an intelligent edge IoT module (1) The sealing member (15) is slidably connected to a first limiting rod (16) distributed in a mirror image, a tension spring is fixedly connected between the first limiting rod (16) and the sealing member (15), the well seat (10) is fixedly connected to a sealing shell (17) distributed in a mirror image, a piston rod (18) is slidably connected in the sealing shell (17), a spring is arranged between the sealing shell (17) and the adjacent piston rod (18), a non-Newtonian fluid is stored in the sealing shell (17), a gasket (19) contacting and cooperating with the adjacent first limiting rod (16) is fixedly connected to the upper side of the piston rod (18), and the gasket (19) is slidably cooperating with the well seat (10); The buffer member (14) is composed of a mirror-distributed partition plate (141), a plurality of elastic members (142), a mirror-distributed first bellows (143) and a second bellows (144); the back side of the mirror-distributed partition plate (141) is in contact with the mirror-distributed manhole cover (13) and the sealing member (15), respectively; the plurality of elastic members (142) are fixedly connected to the partition plate (141) on the lower side; and the plurality of elastic members (142) are fixedly connected to the plurality of elastic members (142) on the upper side. The partition (141) is in contact with the second bellows (144), the cross section of the elastic member (142) is V-shaped, the first bellows (143) distributed in a mirror image are all fixedly connected to the partition (141) distributed in a mirror image, the opposite sides of the partition (141) distributed in a mirror image are all fixedly connected to the second bellows (144), all the elastic members (142) and the first bellows (143) distributed in a mirror image are located in the second bellows (144), and two adjacent elastic members (142) are not in contact; The sealing member (15) is slidably connected to a first extrusion frame (20) distributed in a mirror image, the first extrusion frame (20) is extruded and matched with the adjacent first limiting rod (16), the first extrusion frames (20) distributed in a mirror image are all fixedly connected to the adjacent partition (141), the sealing member (15) is slidably connected to a cross-shaped rod (21) distributed in a mirror image, the cross-shaped rods (21) distributed in a mirror image are all located between the first extrusion frames (20) distributed in a mirror image, the gravity of the buffer member (14) is greater than the supporting force of the tension springs adjacent to the first limiting rods (16) distributed in a mirror image, the lower sides of the cross-shaped rods (21) distributed in a mirror image are commonly fixedly connected with a connecting member (22), and all the first limiting rods (16), all the first extrusion frames (20) and all the cross-shaped rods (21) are located in the same vertical plane.

2. The intelligent edge IoT manhole cover for a cable tunnel according to claim 1 is characterized in that: The sealing member (15) is rotatably connected to a mirror-distributed rotating member (30), the mirror-distributed rotating member (30) and the mirror-distributed first limiting rod (16) are cross-distributed, the well seat (10) is provided with a mirror-distributed lock core (31), the mirror-distributed lock core (31) penetrates the adjacent elastic member (142) and the mirror-distributed partition (141) and slidably cooperates with the three, the lock core (31) is fixedly connected to the adjacent rotating member (30), A mirror-distributed magnetic attraction member (32) is fixedly connected to one side of the well seat (10) close to the mirror-distributed rotating member (30), and a mirror-distributed elliptical elastic member is fixedly connected to the well seat (10). The elliptical elastic member is fixedly connected to the adjacent magnetic attraction member (32), and the magnetic attraction member (32) is magnetically connected to a sliding frame (33). The mirror-distributed sliding frames (33) are all pressed and matched with the sealing member (15), and the sliding frame (33) is limitedly matched with the adjacent rotating member (30).

3. The intelligent edge IoT manhole cover for a cable tunnel according to claim 2 is characterized in that: The sealing member (15) is slidably connected to a second limiting rod (40) distributed in a mirror image, the second limiting rod (40) is in contact with and cooperates with the adjacent sliding frame (33), a spring is fixedly connected between the second limiting rod (40) and the sealing member (15), a second extrusion frame (41) distributed in a mirror image is fixedly connected to the upper side of the connecting member (22), the second extrusion frames (41) distributed in a mirror image all pass through the sealing member (15) and are slidably cooperated with it, and the second extrusion frames (41) are extruded and cooperated with the adjacent second limiting rod (40).

4. The intelligent edge IoT manhole cover for a cable tunnel according to claim 3 is characterized in that: It also includes a gas detection module (5), the gas detection module (5) being arranged on the sealing member (15), the sealing member (15) being slidably connected to an air guide tube (50), the mirror-distributed manhole covers (13) all being sealingly and slidably matched with the air guide tube (50), a spring being arranged between the air guide tube (50) and the sealing member (15), the air guide tube (50) penetrating the buffer member (14) and being slidably matched therewith, the upper side of the air guide tube (50) being fixedly connected to and connected with an air guide cover (51), the air guide cover (51) being fixedly connected to and connected with an air guide shell (52) distributed in a ring array, the inner side of the air guide shell (52) having an inconsistent thickness, and an air exhaust member (53) being arranged inside the air guide cover (51).

5. The intelligent edge IoT manhole cover for a cable tunnel according to claim 4 is characterized in that: The upper side of the air guide tube (50) is rotatably connected to a blocking shell (60) that rotatably cooperates with the air guide cover (51); the blocking shell (60) is provided with air outlets distributed in a circular array; the air outlets on the blocking shell (60) are in communication with the adjacent air guide shells (52); the blocking shell (60) and the air guide shells (52) distributed in a circular array are shielded and cooperated.

6. The intelligent edge IoT manhole cover for a cable tunnel according to claim 5 is characterized in that: The air guide tube (50) is internally connected with a sliding plate (70) in a limited sliding manner, the sliding plate (70) is provided with a plurality of air outlets, an extrusion piece (71) is fixedly connected to the upper side of the sliding plate (70), an extrusion pin distributed in a ring array is fixedly connected to the upper side of the extrusion piece (71), a rotating shell (72) is fixedly connected to the lower side of the blocking shell (60), a spring is provided between the rotating shell (72) and the extrusion piece (71), an inclined slide groove distributed in a ring array is provided in the rotating shell (72), and the extrusion pin on the extrusion piece (71) is extrusion-matched with an adjacent inclined slide groove in the rotating shell (72).

7. The intelligent edge IoT manhole cover for a cable tunnel according to claim 6 is characterized in that: The air guide cylinder (50) is provided with air outlet channels (80) which are connected thereto and are distributed in a ring array. The sliding plate (70) is used to block the lower side of the air outlet channels (80) distributed in the ring array. The air outlet channels (80) distributed in the ring array are used to balance the pressure in the air guide cylinder (50).

8. The intelligent edge IoT manhole cover for a cable tunnel according to claim 7 is characterized in that: A mirror-distributed U-shaped rod (90) is fixedly connected to the lower side of the sliding plate (70); the back sides of the mirror-distributed U-shaped rod (90) pass through the sealing member (15) and are slidably engaged therewith; the side of the U-shaped rod (90) away from the air guide tube (50) is limitedly engaged with the adjacent first limiting rod (16); the air guide tube (50) is slidably connected to a mirror-distributed baffle plate (91); and the baffle plate (91) is fixedly connected to the adjacent U-shaped rod (90).

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