Intelligent well lid with anti-theft function

Abstract

The invention relates to the technical field of well lids, in particular to an intelligent well lid with an anti-theft function, the intelligent well lid comprises a well seat and a well lid placed at the top of the well seat, the circumferential direction of the well lid is in a stepped cone shape, a driving rod is slidably connected to the well lid in a penetrating mode, and the driving rod and the well lid are detachably installed. The frame bodies can be locked and limited through the cylinders formed by the semicircular locking blocks I and the semicircular locking blocks II, the frame bodies enable the well lid to be locked and limited, the frame bodies are evenly arranged in the circumferential direction of the well lid at intervals, locking and limiting can be conducted in the circumferential direction of the well lid, the well lid cannot be prized and stolen from any side of the well lid, and the well lid can be prevented from being stolen. Therefore, the anti-theft capability is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of manhole covers, and in particular to an intelligent manhole cover with an anti-theft function. Background Art

[0002] As an important part of urban underground facilities, the safety of manhole covers is directly related to the safety of life and property of citizens and the normal operation of the city. However, due to the limitations of materials and designs, traditional manhole covers often become targets of thieves. Loss or damage of manhole covers can not only cause pedestrians to fall and get injured, but also may cause road traffic accidents, resulting in immeasurable losses. Therefore, manhole covers with anti-theft functions are needed.

[0003] A Chinese patent with announcement number CN103469819B discloses an anti-theft manhole cover, comprising a lid and a base, wherein the lid is hinged to one side of the base, and the hinge between the lid and the base is that a connecting shaft parallel to the lid is provided on the bottom surface of the lid, and two parallel opening grooves that can be inserted into the lid connecting shaft are provided at corresponding positions of the base, and the direction of the opening groove is along the horizontal direction, and the opening of the opening groove faces the inside of the base, and positioning pins communicating the upper and lower groove edges for locking the opening of the opening groove are provided on the upper and lower groove edges of the opening groove. Although the above patent can make the manhole cover have an anti-theft function, it only simply hides the hinge between the manhole cover and the manhole seat, and there is no multi-point effective mutual locking and restriction function between the manhole cover and the manhole seat, which makes it very easy to pry out and steal from one side of the manhole cover, and the anti-theft ability is poor.

[0004] The present invention aims to solve the problems existing in the above-mentioned patents. To this end, an intelligent manhole cover with anti-theft function that can be locked and restricted along the circumference of the manhole cover and has high anti-theft ability is proposed. Summary of the invention

[0005] In order to overcome the disadvantage that although the above patent can make the manhole cover have the function of anti-theft, it only simply hides the hinge between the manhole cover and the manhole seat, and there is no multi-point effective mutual locking and restriction function between the manhole cover and the manhole seat, which makes it easy to pry and steal from one side of the manhole cover, and the anti-theft ability is poor, the present invention provides a smart manhole cover with anti-theft function that can be locked and restricted along the circumference of the manhole cover and has high anti-theft ability.

[0006] The present invention is achieved through the following technical solutions: An intelligent manhole cover with anti-theft function, including a manhole seat and a manhole cover placed on the top of the manhole seat. The circumferential direction of the manhole cover is a stepped cone. A driving rod is slidably inserted through the manhole cover, and the driving rod is installed on the manhole cover in a detachable manner. It also includes a frame body fixedly connected to the bottom of the manhole cover at equal intervals. The frame body is located inside the manhole seat. Arc-shaped rod I is symmetrically and fixedly connected inside the frame body. A semi-circular lock block I is slidably sleeved between the arc-shaped rods I in each frame body. The semi-circular lock block I rotatably penetrates the frame body and contacts the inner side of the manhole seat. A return spring is connected between the semi-circular lock block I and the frame body. Arc-shaped rod II is fixedly connected to the inner side of the manhole seat along the circumferential direction at equal intervals. A movable plate is slidably sleeved between the arc-shaped rods II. A semi-circular lock block II in contact with the inner side of the frame body is fixedly connected to the movable plate. The semi-circular lock block II contacts the semi-circular lock block I and forms a cylinder. The cylinder formed by the semi-circular lock block II and the semi-circular lock block I locks the frame body, so that the frame body locks and restricts the circumferential direction of the manhole cover. A trigger component in contact with the bottom end of the driving rod is arranged on the manhole cover, which is used to drive the movable plate to slide upward.

[0007] Further description, the trigger component includes an internal gear ring rotatably connected to the inner circumferential direction of the manhole seat. Wedge-shaped plates corresponding to the movable plate are fixedly connected to the top of the internal gear ring along the circumferential direction at equal intervals, which are used to drive the movable plate to slide. A spur gear meshing with the internal gear ring is rotatably connected to the inner side of the manhole seat. A rotating component in contact with the bottom end of the driving rod is arranged on the inner side of the manhole seat, which is used to drive the spur gear to rotate.

[0008] Further description, the rotating component includes a mounting plate fixedly connected to the inner side of the manhole seat. The mounting plate is located on the right side of the spur gear. A defective gear meshing with the spur gear is rotatably connected to the mounting plate. An opening disc is slidably inserted through the defective gear. Connecting springs are connected between the opening disc and the defective gear at equal intervals. A chuck is rotatably inserted through the mounting plate. The end of the chuck is located in the hole of the opening disc, which is used to drive the opening disc to rotate. The top end of the chuck is adapted to the bottom end of the driving rod.

[0009] Further description, the intelligent manhole cover with anti-theft function also includes a pressing component. The pressing component includes L-shaped plates slidably connected to the inner circumferential direction of the manhole seat at equal intervals. A contact rod is fixedly connected to the L-shaped plate. The top end of the contact rod contacts the bottom of the manhole cover. A tension spring sleeved on the contact rod is connected between the manhole seat and the L-shaped plate. A pressing plate in contact with the circumferential direction of the manhole cover is rotatably connected between the ends of the L-shaped plates, which is used to press and seal the circumferential direction of the manhole cover. The inner side of the pressing plate is stuck on the top circumferential direction of the manhole seat.

[0010] Further description, the pressing component also includes a torsion spring connected between the pressing plate and the L-shaped plate.

[0011] Further explanation, the smart manhole cover with anti-theft function also includes an identification component, which includes a shell fixed to the missing tooth position of the missing gear, an electric winding wheel is installed on the shell, a pull wire is wound on the electric winding wheel, the tail end of the pull wire slides through the shell and the missing gear, the tail end of the pull wire is fixedly connected to the hole disk, and is used to drive the hole disk to move. An induction component is arranged between the driving rod and the chuck for controlling the electric winding wheel.

[0012] To further explain, the sensing component includes a receiving module fixed to the eccentric position of the chuck, the receiving module is electrically connected to the electric winding wheel through the control module, and the sensing module is installed on the driving rod, and the sensing module cooperates with the receiving module.

[0013] Further explanation, the intelligent manhole cover with anti-theft function also includes fixed blocks fixed to the top of the manhole cover at uniform intervals, and a fixing frame is mounted on the driving rod through a damping rotation type, and the fixing frame is mounted on the fixing block.

[0014] The beneficial effects of the present invention are: 1. The cylinder formed by the semicircular locking block I and the semicircular locking block II can lock and restrict the frame, and the frame locks and restricts the manhole cover. Since the frame is evenly spaced around the manhole cover, it can also lock and restrict along the manhole cover. No matter which side of the manhole cover is pried and stolen, the anti-theft ability is improved.

[0015] 2. Under the action of the compression plate, whenever the manhole cover is placed, the compression plate can compress and seal the circumferential edge of the manhole cover. In this way, the manhole cover can be further compressed and sealed to prevent the edge of the manhole cover from being exposed to the outside and easily lifted up, thereby further improving the anti-theft ability.

[0016] 3. Under the action of the identification component, whenever the driving rod is removed, the identification component causes the perforated disk to move downward and disengage from the chuck. The tool used by the thief is not equipped with a sensing module, so the thief can only make the chuck idle and cannot unlock the manhole cover. In this way, the thief can be prevented from using the tool to drive the chuck to rotate so that the manhole cover is unlocked, thereby further ensuring the safety of the manhole cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0018] Figure 2 This is a structural separation diagram of the well seat, well cover and driving rod of the present invention.

[0019] Figure 3 It is a three-dimensional structural schematic diagram of the semicircular locking block I and the semicircular locking block II of the present invention.

[0020] Figure 4This is a three-dimensional structural schematic diagram of the arc-shaped rod I and the return spring of the present invention.

[0021] Figure 5 This is a three-dimensional structural schematic diagram of the trigger component of the present invention.

[0022] Figure 6 This is a three-dimensional structural schematic diagram of the pressing component of the present invention.

[0023] Figure 7 This is a three-dimensional structural schematic diagram of the torsion spring of the present invention.

[0024] Figure 8 This is a three-dimensional structural schematic diagram of the identification component of the present invention.

[0025] Figure 9 This is a three-dimensional structural schematic diagram of the fixed block and the fixed frame of the present invention.

[0026] Reference numerals in the drawings: 1 - manhole base, 2 - manhole cover, 3 - drive rod, 4 - frame body, 5 - semi-circular lock block I, 51 - arc-shaped rod I, 52 - return spring, 6 - arc-shaped rod II, 7 - movable plate, 8 - semi-circular lock block II, 9 - internal gear ring, 91 - wedge plate, 92 - spur gear, 93 - mounting plate, 94 - missing gear, 95 - perforated disc, 96 - connecting spring, 97 - chuck, 10 - pressing plate, 101 - L-shaped plate, 102 - contact rod, 103 - tension spring, 104 - torsion spring, 11 - housing, 111 - electric wire winding wheel, 112 - wire, 113 - induction module, 114 - receiving module, 12 - fixed block, 13 - fixed frame. Detailed implementation manners

[0027] First of all, it should be pointed out that in different described embodiments, the same components are provided with the same reference numerals or the same component names. Among them, the disclosed content included in the entire specification can be meaningfully applied to the same components with the same reference numerals or the same component names. The positional descriptions selected in the specification, such as up, down, lateral, etc., also refer to the directly described and shown drawings and are meaningfully applied to the new positions when the positions change.

[0028] Embodiment: An intelligent manhole cover with anti-theft function, please refer to Figures 1-7As shown in the figure, it includes a well seat 1 and a well cover 2 placed on the top of the well seat 1. The circumferential direction of the well cover 2 is a stepped cone. A driving rod 3 is slidably connected through the left side of the well cover 2. The driving rod 3 and the well cover 2 are installed in a detachable manner. It also includes a frame 4, a semi-circular lock block I 5, an arc rod I 51, a return spring 52, an arc rod II 6, a movable plate 7, a semi-circular lock block II 8 and a trigger assembly. The bottom of the well cover 2 is fixedly connected with frames 4 at equal intervals along the circumferential direction. The frames 4 are located inside the well seat 1. Arc rods I 51 are symmetrically fixedly connected inside the frames 4. A semi-circular lock block I 5 is slidably sleeved between the two arc rods I 51 in each frame 4. The semi-circular lock block I 5 rotates through the frame 4 and contacts the inner side of the well seat 1. A return spring 52 is connected between the upper part of the semi-circular lock block I 5 and the inner top of the frame 4. Multiple groups of arc rods II 6 are fixedly connected to the inner side of the well seat 1 at equal intervals along the circumferential direction. The number of each group of arc rods II 6 is two. A movable plate 7 is slidably sleeved between the two arc rods II 6 in each group. A semi-circular lock block II 8 is fixedly connected to the inner side of the movable plate 7. The semi-circular lock block II 8 contacts the semi-circular lock block I 5 and forms a cylinder. The semi-circular lock block II 8 contacts the inner side of the frame 4. The cylinder formed by the semi-circular lock block II 8 and the semi-circular lock block I 5 locks the frame 4, so that the frame 4 locks and restricts the circumferential direction of the well cover 2. A trigger assembly is arranged inside the well cover 2. The trigger assembly contacts the bottom end of the driving rod 3. When the trigger assembly operates, the trigger assembly can drive the movable plate 7 to slide upward.

[0029] Please refer to Figure 5 As shown in the figure, the trigger assembly includes an internal gear ring 9, a wedge plate 91, a spur gear 92 and a rotating assembly. The internal gear ring 9 is rotatably connected to the middle part of the inner side of the well seat 1 along the circumferential direction. Wedge plates 91 are fixedly connected to the top of the internal gear ring 9 at equal intervals along the circumferential direction. The wedge plates 91 correspond to the movable plates 7. When the wedge plates 91 rotate in reverse and contact the movable plates 7, the wedge plates 91 can drive the movable plates 7 to slide upward. The spur gear 92 is rotatably connected to the left side inside the well seat 1. The spur gear 92 meshes with the internal gear ring 9. A rotating assembly is arranged inside the well seat 1. The rotating assembly contacts the bottom end of the driving rod 3. When the rotating assembly operates, the rotating assembly can drive the spur gear 92 to rotate; The rotating assembly includes a mounting plate 93, a missing gear 94, an opening disk 95, a connecting spring 96 and a chuck 97. The mounting plate 93 is fixedly connected to the left side inside the well seat 1. The mounting plate 93 is located on the right side of the spur gear 92. The missing gear 94 is rotatably connected to the top of the mounting plate 93. The missing gear 94 meshes with the spur gear 92. The opening disk 95 is slidably connected through the missing gear 94. Connecting springs 96 are evenly spaced and connected between the bottom of the opening disk 95 and the top of the missing gear 94. The chuck 97 is rotatably connected through the middle part of the mounting plate 93. The end of the chuck 97 is located in the hole of the opening disk 95. When the chuck 97 rotates, the chuck 97 can drive the opening disk 95 to rotate, so that the missing gear 94 rotates forward. The top end of the chuck 97 is adapted to the bottom end of the driving rod 3.

[0030] When it is necessary to lift the manhole cover 2 from the manhole seat 1, first twist the drive rod 3 clockwise to drive the chuck 97 to rotate clockwise. The clockwise rotation of the chuck 97 drives the perforated disc 95 to rotate clockwise. The clockwise rotation of the perforated disc 95 drives the deficient gear 94 to rotate clockwise. The clockwise rotation of the deficient gear 94 drives the spur gear 92 to rotate counterclockwise. The counterclockwise rotation of the spur gear 92 drives the internal gear ring 9 to rotate counterclockwise. When the counterclockwise rotation of the internal gear ring 9 drives the wedge plate 91 to rotate counterclockwise and the wedge plate 91 contacts the movable plate 7, the wedge plate 91 drives the movable plate 7 to slide upward on the arc-shaped rod II 6. The upward sliding of the movable plate 7 drives the semi-circular locking block II 8 to rotate. The rotation of the semi-circular locking block II 8 disengages from the inner side of the frame body 4. The rotation of the semi-circular locking block II 8 drives the semi-circular locking block I 5 to rotate, and the return spring 52 is stretched. The rotation of the semi-circular locking block I 5 disengages from the inner side of the manhole seat 1. When the semi-circular locking block I 5 rotates completely into the frame body 4, stop twisting the drive rod 3. The chuck 97 stops driving the perforated disc 95 to rotate clockwise, and the wedge plate 91 stops driving the movable plate 7 to slide upward. Pull the drive rod 3 upward to disengage from the chuck 97, and take out the drive rod 3 from the manhole cover 2. Then the manhole cover 2 can be removed from the manhole seat 1. The removal of the manhole cover 2 drives the frame body 4 to move upward outside the manhole seat 1. The upward movement of the frame body 4 drives the semi-circular locking block I 5 to move upward outside the manhole seat 1 through the arc-shaped rod I 51. The upward movement of the semi-circular locking block I 5 disengages from the semi-circular locking block II 8. Due to the action of the return spring 52, the semi-circular locking block I 5 rotates reversely to reset. The reset of the semi-circular locking block I 5 causes a part of it to be outside the frame body 4. Then the staff can enter below the ground through the manhole seat 1 to work. When the staff finishes working, the staff comes up from below the ground to the ground through the manhole seat 1, and then places the manhole cover 2 on the manhole seat 1. The manhole cover 2 drives the frame body 4 to move downward. The downward movement of the frame body 4 drives the semi-circular locking block I 5 to move downward through the arc-shaped rod I 51. The semi-circular locking block I 5 moves downward and first contacts the manhole seat 1. The manhole seat 1 pushes the downward moving semi-circular locking block I 5 to rotate, so that the semi-circular locking block I 5 rotates completely into the frame body 4. Then the semi-circular locking block I 5 continues to move downward to reset and contacts the semi-circular locking block II 8. Then the operator passes the drive rod 3 through the manhole cover 2 to contact the top of the chuck 97, and twists the drive rod 3 counterclockwise to drive the chuck 97 to rotate counterclockwise. The counterclockwise rotation of the chuck 97 drives the perforated disc 95 to rotate counterclockwise. The counterclockwise rotation of the perforated disc 95 drives the deficient gear 94 to rotate counterclockwise. The counterclockwise rotation of the deficient gear 94 drives the spur gear 92 to rotate clockwise. The clockwise rotation of the spur gear 92 drives the internal gear ring 9 to rotate clockwise. The clockwise rotation of the internal gear ring 9 drives the wedge plate 91 to rotate clockwise. The clockwise rotation of the wedge plate 91 disengages from the movable plate 7. Due to the action of the return spring 52, the reverse rotation and reset of the semi-circular locking block I 5 drive the reverse rotation and reset of the semi-circular locking block II 8. The reset of the semi-circular locking block II 8 contacts the frame body 4, and the reset of the semi-circular locking block I 5 contacts the inside of the manhole seat 1. The semi-circular locking block I 5 and the semi-circular locking block II 8 form a cylinder to lock and limit the frame body 4. Since the frame body 4 is fixedly connected to the circumferential direction of the manhole cover 2, it can be locked and limited along the circumferential direction of the manhole cover 2, and it cannot be pried and stolen from any side of the manhole cover 2, thus improving the anti-theft ability. Then take the drive rod 3 off the manhole cover 2, and the drive rod 3 disengages from the chuck 97.

[0031] Please refer to Figure 6 and Figure 7 As shown, the intelligent manhole cover with anti-theft function further includes a pressing component installed on the manhole seat 1. The pressing component includes a pressing plate 10, an L-shaped plate 101, a contact rod 102, a tension spring 103, and a torsion spring 104. A plurality of groups of L-shaped plates 101 are slidably connected to the lower part of the inner side of the manhole seat 1 at equal intervals along the circumference. The number of each group of L-shaped plates 101 is two. A contact rod 102 is fixedly connected to the inner bottom of the L-shaped plate 101. The top of the contact rod 102 contacts the bottom of the manhole cover 2. A tension spring 103 is connected between the lower part of the inner side of the manhole seat 1 and the inner bottom of the L-shaped plate 101. The tension spring 103 is sleeved on the contact rod 102. A pressing plate 10 is rotatably connected between the tops of each group of two L-shaped plates 101. The inner side of the pressing plate 10 contacts the circumference of the manhole cover 2. The pressing plate 10 can press and seal the manhole cover 2 circumferentially. The inner side of the pressing plate 10 is stuck on the top circumference of the manhole seat 1. A torsion spring 104 is connected between the pressing plate 10 and the L-shaped plate 101.

[0032] Please refer to Figure 8 As shown, the intelligent manhole cover with anti-theft function further includes an identification component installed between the missing gear 94 and the opening disk 95. The identification component includes a housing 11, an electric wire winding wheel 111, a wire 112, and an induction component. A housing 11 is fixedly connected to the missing tooth position of the missing gear 94. An electric wire winding wheel 111 is installed on the housing 11. Two wires 112 are wound around the electric wire winding wheel 111. The tails of the two wires 112 slidably penetrate through the housing 11 and the missing gear 94. The tails of the two wires 112 are fixedly connected to the bottom of the opening disk 95. When the wire 112 is wound up, the wire 112 can drive the opening disk 95 to move downward so that the opening disk 95 is separated from the chuck 97. An induction component is arranged between the driving rod 3 and the chuck 97. The induction component can control the electric wire winding wheel 111. The induction component includes an induction module 113 and a receiving module 114. A receiving module 114 is fixedly connected to the eccentric position at the top of the chuck 97. The receiving module 114 is electrically connected to the electric wire winding wheel 111 through a control module. An induction module 113 is installed at the lower part of the driving rod 3. The induction module 113 cooperates with the receiving module 114.

[0033] Initially, the tension spring 103 is in a stretched state and the torsion spring 104 is in a compressed state. When the manhole cover 2 moves upward and is removed from the manhole seat 1, the upward movement of the manhole cover 2 stops limiting the contact rod 102. Due to the action of the tension spring 103, the L-shaped plate 101 moves upward, driving the contact rod 102 and the pressing plate 10 upward. The pressing plate 10 moves upward synchronously with the manhole cover 2. When the pressing plate 10 stops pressing and fixing the manhole cover 2 and moves upward to disengage from the manhole seat 1, due to the action of the torsion spring 104, the pressing plate 10 swings outward to disengage from the manhole cover 2. When the manhole cover 2 is placed back on the manhole seat 1, during the process of placing the manhole cover 2 back, it contacts the contact rod 102. The manhole cover 2 drives the contact rod 102 to move downward. The downward movement of the contact rod 102 drives the L-shaped plate 101 to move downward, stretching the tension spring 103. The downward movement of the L-shaped plate 101 drives the pressing plate 10 to move downward. The pressing plate 10 moves downward to contact the inner side of the manhole seat 1. The manhole seat 1 drives the pressing plate 10 to swing inward to reset, compressing the torsion spring 104. Subsequently, the pressing plate 10 continues to move downward to press and fix the manhole cover 2. At the same time, the pressing plate 10 also seals the circumferential edge position of the manhole cover 2. In this way, the manhole cover 2 can be further pressed and sealed to prevent the edge position of the manhole cover 2 from being exposed to the outside and being easily lifted, thereby further improving the anti-theft ability.

[0034] When the drive rod 3 is taken out of the manhole cover 2, the drive rod 3 is disengaged from the chuck 97. The drive rod 3 drives the induction module 113 to move upward. The induction module 113 moves upward out of the receiving area of the receiving module 114. Then, the receiving module 114 controls the electric wire winding wheel 111 to rotate through the control module. The electric wire winding wheel 111 rotates to wind up the wire rope 112. The winding of the wire rope 112 drives the opening disk 95 to move downward through the missing gear 94. The connecting spring 96 is compressed. The opening disk 95 moves downward and is disengaged from the chuck 97. The electric wire winding wheel 111 is turned off. If a thief uses a suitable tool to drive the chuck 97 to rotate, since there is no induction module 113 on the tool, the receiving module 114 does not receive a signal, and the electric wire winding wheel 111 will not rotate in the reverse direction to make the opening disk 95 reset and contact the chuck 97. At this time, when the thief twists the chuck 97 to rotate with the tool, the chuck 97 is in an idling state, and the wedge plate 91 will not drive the movable plate 7 to slide upward, and the semi-circular lock block I 5 and the semi-circular lock block II 8 will not be unlocked. When the operator uses the drive rod 3 with the induction module 113 to contact the chuck 97, the drive rod 3 drives the induction module 113 to be within the receiving range of the receiving module 114. The receiving module 114 receives the signal. The receiving module 114 controls the electric wire winding wheel 111 to start through the control module. The electric wire winding wheel 111 rotates in the reverse direction to relax the wire rope 112. The wire rope 112 is in a relaxed state and stops pulling the opening disk 95. Due to the action of the connecting spring 96, the opening disk 95 moves upward and contacts and cooperates with the chuck 97. At this time, when the chuck 97 is twisted to rotate through the drive rod 3, when the chuck 97 rotates and inserts into the hole of the opening disk 95, the rotation of the chuck 97 drives the opening disk 95 to rotate. The opening disk 95 drives the missing gear 94 to rotate. The missing gear 94 drives the housing 11 to rotate. Since the housing 11 is at the missing tooth position of the missing gear 94, the housing 11 does not affect the meshing of the missing gear 94 and the spur gear 92, and thus the semi-circular lock block I 5 and the semi-circular lock block II 8 rotate to be unlocked. In this way, it can prevent thieves from using tools to drive the chuck 97 to rotate and unlock the manhole cover 2, thereby further ensuring the safety of the manhole cover 2.

[0035] Please refer to Figure 9 As shown in the figure, the intelligent manhole cover with anti-theft function further includes a fixed block 12 and a fixing frame 13. Four fixed blocks 12 are fixedly connected to the left side of the top of the manhole cover 2 at equal intervals. The middle part of the drive rod 3 is sleeved with a fixing frame 13 in a damping rotation manner. The fixing frame 13 is sleeved on the fixed block 12.

[0036] When the operator twists the drive rod 3 to rotate forward, the drive rod 3 drives the fixed frame 13 to rotate forward. When the fixed frame 13 rotates forward to the maximum stroke on the fixed block 12, the fixed frame 13 stops rotating forward. The drive rod 3 continues to rotate forward to drive the chuck 97 to rotate forward. Then, when the semi-circular locking block I 5 and the semi-circular locking block II 8 stop locking the well cover 2, the operator stops twisting the drive rod 3 and pulls the drive rod 3 upward to drive the fixed frame 13 upward. The fixed frame 13 drives the fixed block 12 upward, and the fixed block 12 drives the well cover 2 upward. The well cover 2 moves upward to disengage from the well seat 1. When it is necessary to place the well cover 2 back on the well seat 1, the operator holds the drive rod 3 and drives the well cover 2 to be placed on the well seat 1 through the fixed block 12 and the fixed frame 13. Subsequently, the operator twists the drive rod 3 to rotate backward to drive the chuck 97 to rotate backward, so that the semi-circular locking block I 5 and the semi-circular locking block II 8 are reset to continue locking the well cover 2. At the same time, the drive rod 3 rotates backward to drive the fixed frame 13 to rotate backward. The fixed frame 13 rotates backward to disengage from the fixed block 12. When the fixed frame 13 rotates backward to the maximum stroke, the fixed frame 13 is limited by the well cover 2. The drive rod 3 continues to rotate backward. When the well cover 2 is locked and restricted, the operator stops twisting the drive rod 3 to rotate backward and pulls the drive rod 3 upward to disengage from the well cover 2. Moreover, the drive rod 3 drives the fixed frame 13 upward to disengage from the well cover 2. In this way, it is more convenient for the operator to remove the well cover 2 from the well seat 1.

[0037] Finally, it is necessary to state that the above content is only used to help understand the technical solution of the present invention and cannot be construed as a limitation on the protection scope of the present invention. Non-essential improvements and adjustments made by those skilled in the art based on the above content of the present invention all fall within the scope of protection required by the present invention.

Claims

1. An intelligent manhole cover with an anti-theft function, comprising a manhole seat (1) and a manhole cover (2) placed on the top of the manhole seat (1), the manhole cover (2) being in a stepped cone shape in the circumferential direction, a driving rod (3) being slidably connected to the manhole cover (2), the driving rod (3) and the manhole cover (2) being detachably mounted, characterized in that: The invention also comprises a frame (4) fixedly connected to the bottom of the manhole cover (2) at uniform intervals, the frame (4) being located in the manhole seat (1), arc-shaped rods I (51) being symmetrically fixedly connected in the frame (4), a semicircular locking block I (5) being slidably mounted between the arc-shaped rods I (51) in each frame (4), the semicircular locking block I (5) rotatably passing through the frame (4) and contacting the inner side of the manhole seat (1), a return spring (52) being connected between the semicircular locking block I (5) and the frame (4), and arc-shaped rods II (6) being fixedly connected to the inner side of the manhole seat (1) at uniform intervals along the circumferential direction, A movable plate (7) is slidably mounted between the arc-shaped rods II (6). A semicircular locking block II (8) in contact with the inner side of the frame (4) is fixedly connected to the movable plate (7). The semicircular locking block II (8) contacts with the semicircular locking block I (5) to form a cylinder. The cylinder formed by the semicircular locking block II (8) and the semicircular locking block I (5) locks the frame (4), so that the frame (4) locks and restricts the manhole cover (2) in the circumferential direction. A trigger assembly in contact with the bottom end of the driving rod (3) is provided on the manhole cover (2) for driving the movable plate (7) to slide upward.

2. The intelligent manhole cover with anti-theft function according to claim 1 is characterized in that: The trigger assembly comprises an inner gear ring (9) rotatably connected to the inner circumference of the well seat (1); wedge-shaped plates (91) corresponding to the movable plate (7) are fixedly connected to the top of the inner gear ring (9) at uniform intervals along the circumference, and are used to drive the movable plate (7) to slide; a spur gear (92) meshing with the inner gear ring (9) is rotatably connected to the inner side of the well seat (1); and a rotating assembly in contact with the bottom end of the driving rod (3) is provided on the inner side of the well seat (1), and is used to drive the spur gear (92) to rotate.

3. The intelligent manhole cover with anti-theft function according to claim 2 is characterized in that: The rotating assembly comprises a mounting plate (93) fixed to the inner side of the well seat (1), the mounting plate (93) being located on the right side of the spur gear (92), a missing gear (94) meshing with the spur gear (92) being rotatably connected to the mounting plate (93), a perforated disk (95) being slidably connected to the missing gear (94), connecting springs (96) being evenly spacedly connected between the perforated disk (95) and the missing gear (94), a chuck (97) being rotatably connected to the mounting plate (93), an end of the chuck (97) being located in a hole of the perforated disk (95) for driving the perforated disk (95) to rotate, and a top end of the chuck (97) being adapted to a bottom end of a driving rod (3).

4. The intelligent manhole cover with anti-theft function according to claim 3 is characterized in that: The intelligent manhole cover with anti-theft function also includes a clamping assembly, which includes an L-shaped plate (101) slidably connected to the inner circumference of a manhole seat (1) at uniform intervals, a contact rod (102) fixedly connected to the L-shaped plate (101), the top of the contact rod (102) in contact with the bottom of the manhole cover (2), a tension spring (103) sleeved on the contact rod (102) connected between the manhole seat (1) and the L-shaped plate (101), a clamping plate (10) in circumferential contact with the manhole cover (2) rotatably connected between the ends of the L-shaped plate (101), and used for circumferentially clamping and sealing the manhole cover (2), and the inner side of the clamping plate (10) is clamped in the circumferential direction of the top of the manhole seat (1).

5. The intelligent manhole cover with anti-theft function according to claim 4 is characterized in that: The pressing assembly also includes a torsion spring (104) connected between the pressing plate (10) and the L-shaped plate (101).

6. The intelligent manhole cover with anti-theft function according to claim 5 is characterized in that: The intelligent manhole cover with anti-theft function also includes an identification component, the identification component including a housing (11) fixedly connected to the missing tooth position of the missing gear (94), an electric winding wheel (111) mounted on the housing (11), a pull wire (112) wound around the electric winding wheel (111), the tail end of the pull wire (112) slidingly passing through the housing (11) and the missing gear (94), the tail end of the pull wire (112) fixedly connected to the perforated disk (95) for driving the perforated disk (95) to move, and an induction component is provided between the drive rod (3) and the chuck (97) for controlling the electric winding wheel (111).

7. The intelligent manhole cover with anti-theft function according to claim 6 is characterized in that: The sensing component comprises a receiving module (114) fixed to an eccentric position of the chuck (97); the receiving module (114) is electrically connected to the electric winding wheel (111) via a control module; a sensing module (113) is mounted on the driving rod (3); the sensing module (113) cooperates with the receiving module (114).

8. The intelligent manhole cover with anti-theft function according to claim 7 is characterized in that: The intelligent manhole cover with anti-theft function also includes fixed blocks (12) fixedly connected to the top of the manhole cover (2) at even intervals, and a fixed frame (13) is sleeved on the driving rod (3) in a damping rotation manner, and the fixed frame (13) is sleeved on the fixed block (12).

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