A shockproof adjustable inspection well cover

Abstract

The present invention discloses a shockproof and adjustable manhole cover, which belongs to the technical field of packaging equipment. The shockproof and adjustable manhole cover comprises a base, a control terminal, a sliding mechanism and a cover body. Two cover bodies are arranged in mirror image. A protective frame is hinged on the cover body. The protective frame is arranged in a receiving groove in the cover body. A clamping mechanism is arranged on both sides of the cover body. A support and damping mechanism is arranged in the base. The support and damping mechanism comprises an opening and closing drive unit arranged on the inner wall of the base. The opening and closing drive unit is connected to two support units arranged in mirror image. A damping member detachably connected to the cover body is arranged on the support unit. The above-mentioned shockproof and adjustable manhole cover has a protective function, a large supporting strength, and a supporting and damping effect, thereby improving the shockproof effect.

Description

Technical Field

[0001] The invention relates to the technical field of manhole covers, and in particular to a shockproof and adjustable inspection manhole cover. Background Art

[0002] In order to facilitate the maintenance and inspection of underground pipelines, a certain number of inspection wells are usually set up on both sides of the road and equipped with corresponding well covers for protection. Inspection well covers are widely used in urban infrastructure. Their existence is to facilitate the staff to enter the underground space safely and quickly to perform related tasks.

[0003] The patent with announcement number CN114108700B discloses an impact-resistant lifting manhole cover and its inspection method, wherein the manhole cover includes a manhole shell, a lifting adjustment assembly, a snap nut, a buffer closure assembly and a lifting manhole cover assembly. When performing maintenance or repair on the equipment in the manhole, the lifting stepper motor in the lifting manhole cover assembly is started to control the depth position of the adjusting manhole cover in the manhole shell. The maintenance staff can stand on the adjusting manhole cover. When the adjusting manhole cover is lowered to the height of the inspection port, the maintenance staff can perform maintenance or repair on the equipment in the manhole through the inspection port. When performing maintenance and repair on the equipment at the bottom of the manhole shell, the manhole cover is opened. The maintenance and repair staff can enter the bottom of the manhole shell through the center of the manhole cover outer seat and perform maintenance and repair on the corresponding equipment. It is convenient for the maintenance and repair staff to stand on the manhole cover to perform step-by-step maintenance and repair work. The manhole cover has strong impact resistance and is convenient for drainage. However, the following problems still exist: (1) When maintenance personnel enter or exit the well for maintenance, they need to be warned by the protective fence before going down the well and need to carry the protective fence.

[0004] (2) Although a spring with a buffering effect is provided, it is only provided at the edge of the manhole cover and the spring has no damping effect, which will aggravate the vibration of the manhole cover and easily cause abnormal noise. Summary of the invention

[0005] The purpose of the present invention is to provide a shockproof and adjustable inspection manhole cover to solve the above technical problems.

[0006] To achieve the above-mentioned purpose, the present invention provides a shockproof adjustable manhole cover, comprising a base, a control terminal, a sliding mechanism and a cover body, wherein two cover bodies are arranged in mirror image, a protective frame is hinged on the cover body, the protective frame is arranged in a receiving groove in the cover body, a clamping mechanism is arranged on both sides of the cover body, a support damping mechanism is arranged in the base, the support damping mechanism comprises an opening and closing drive unit arranged on the inner wall of the base, the opening and closing drive unit is connected to the two mirror-arranged support units, and a damping member detachably connected to the cover body is arranged on the support unit; The sliding mechanism, the clamping mechanism, the opening and closing driving unit and the damping member are all electrically connected to the control terminal.

[0007] Preferably, the sliding mechanism includes a meshing rack fixed to the inner side of the base, a fixed limit plate is fixed to the upper side of the meshing rack, a sliding gear meshing with the meshing rack is arranged below the fixed limit plate, the sliding gear is connected to a sliding drive motor, the sliding drive motor is connected to a mobile lifting telescopic rod, the telescopic end of the mobile lifting telescopic rod is connected to the inner side of the cover body, a fixed lifting telescopic rod is arranged on the inner side of the base, and a support roller is arranged at the telescopic end of the fixed lifting telescopic rod, and the support roller is arranged in a guide groove on the inner side of the cover body; The sliding drive motor, the mobile lifting and telescopic rod and the fixed lifting and telescopic rod are all electrically connected to the control terminal; When the cover body needs to be opened, the mobile lifting telescopic rod and the fixed lifting telescopic rod are started, so that the mobile lifting telescopic rod and the fixed lifting telescopic rod synchronously lift the cover body, and then the sliding drive motor is started, so that the mobile lifting telescopic rod drives the cover body to move along the direction of the meshing rack until the mobile lifting telescopic rod moves to the tail of the meshing rack and stops, and the two cover bodies move away from each other, so that the cover body is opened.

[0008] Preferably, a shockproof rubber pad embedded with an adsorption magnet is provided on the contact surface between the protective frame and the accommodating groove, and a bending portion is provided on the top of the protective frame, and the bending portion fits one side of the cover body.

[0009] Preferably, the clamping mechanism includes a clamping column, which is connected to the clamping electromagnet through a return spring. The clamping electromagnet, the return spring and one end of the clamping column are all arranged in a clamping groove on the side of the cover body, and a clamping through hole is opened on the edge of the base opposite to the clamping column.

[0010] Preferably, the opening and closing driving unit comprises an opening and closing driving motor mounted on the base, the output shaft of the opening and closing driving motor is connected to an opening and closing gear, the opening and closing gear is meshed with a rotating gear of one of the supporting units, the opening and closing gear is meshed with an intermediate gear rotatably connected to the inner wall of the base, the rotating shaft of the intermediate gear is connected to a transmission gear, and the transmission gear is connected to the rotating gear of another supporting unit through a chain; The opening and closing driving motor is electrically connected to the control terminal.

[0011] Preferably, the support unit comprises a support shaft rotatably connected to the base, a plurality of arc-shaped support plates arranged in parallel are mounted on the support shaft, and a damping member is mounted on one end of the arc-shaped support plate away from the support shaft; After the cover is opened, the opening and closing drive motor is started to rotate the two supporting shafts, so that the arc-shaped support plate rotates outwardly of the base by not less than 90°, thereby realizing protection on both sides of the base.

[0012] Preferably, a plurality of support reinforcement plates arranged in parallel are slidably arranged on both sides of the bottom of the base, a ball plunger is arranged on the side of the support reinforcement plate, the ball plunger is arranged opposite to the positioning groove in the base slide groove, and the plurality of support reinforcement plates are connected by a connecting plate; After the arc-shaped support plate is rotated outwardly of the base to a certain position, the connecting plate is operated to push a plurality of support reinforcement plates inwardly to expand the inlet space of the base.

[0013] Preferably, a plug-in mechanism for realizing detachable connection is arranged on the top of the damping member, the plug-in mechanism comprises a plug-in seat, the plug-in seat comprises a fixed sleeve, a movable sleeve is arranged on the outer side of the fixed sleeve, a plug-in plate telescopic rod is connected to the bottom of the movable sleeve, an upper limit ring is arranged on the fixed sleeve, a positioning ball is arranged between the upper limit ring and the limiting convex ring on the inner side of the movable sleeve, the upper end face of the limiting ring is an inclined surface, the fixed sleeve is provided with a positioning through hole arranged opposite to the positioning ball, a plug-in column is arranged at the bottom of the cover body, a positioning ring groove is arranged on the circumferential side of the plug-in column, and the positioning ring groove is arranged opposite to the positioning ball; The plug board telescopic rod is electrically connected to the control terminal; When the cover body reaches the covering position, the plug plate telescopic rod contracts, causing the movable sleeve to move downward, and the movable lifting telescopic rod and the fixed lifting telescopic rod are extended and retracted, so that the plug-in column is inserted into the fixed sleeve, the plug plate telescopic rod is extended, and the movable sleeve returns to the initial position, so that the positioning ball passes through the positioning through hole and is engaged with the positioning ring groove under the squeezing action of the limiting convex ring, thereby realizing the vertical limitation of the fixed sleeve and the plug-in column.

[0014] Preferably, the damping member is a hydraulic shock absorber arranged in the adjustment hole of the arc-shaped support plate, a pressure sensor is arranged on the top of the damping member, a height adjustment assembly is arranged on the bottom of the damping member, the height adjustment assembly comprises a pushing telescopic rod arranged in the arc-shaped support plate, a first wedge is arranged at the telescopic end of the pushing telescopic rod, and the first wedge is in contact with a second wedge at the bottom of the damping member; The pressure sensor and the push telescopic rod are both electrically connected to the control terminal; When the cover body is covered, the control terminal adjusts the extension amount of the telescopic rod according to the pressure of the pressure sensor, thereby adjusting the pressure between the damping member and the cover body.

[0015] Preferably, a distance sensor is also provided on the circumferential side of the damping element, and the distance sensor is electrically connected to the control terminal; When the arc support plate rotates 90°, the data of the distance sensors of the two rows of damping parts are used. When the distance data is within the set range, it is determined that the manhole cover has not settled, otherwise the control terminal issues a settlement warning.

[0016] Therefore, the present invention adopts the above-mentioned anti-vibration adjustable manhole cover, which has the following beneficial effects: (1) When performing maintenance, slide open the cover and open the protective frame to provide a protective warning around the manhole cover without carrying other protective equipment.

[0017] (2) The cover body and the damping member in the support damping mechanism in the base are detachably connected, and the middle part of the cover body is supported by the arc-shaped support plate. At the same time, after the cover body is opened, the two support shafts are rotated by starting the opening and closing drive motor, so that the arc-shaped support plate rotates outward from the base by not less than 90 degrees, thereby realizing protection on both sides of the base.

[0018] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of a shockproof and adjustable inspection well cover of the present invention; Figure 2 This is a schematic diagram of the cover structure of the present invention; Figure 3 It is a schematic diagram of the structure of the sliding mechanism of the present invention; Figure 4 This is a schematic diagram of the structure of the opening and closing drive unit of the present invention; Figure 5 It is a schematic diagram of the structure of the clamping mechanism of the present invention; Figure 6 This is a schematic diagram of the support reinforcement plate structure of the present invention; Figure 7 It is a schematic diagram of the structure of the plug-in mechanism of the present invention; Figure 8 It is a schematic diagram of the structure of the height adjustment component of the present invention.

[0020] Reference numerals 1. Base; 11. Snap-in hole; 12. Slide slot; 13. Positioning slot; 2. Cover; 21. Accommodating slot; 22. Guide slot; 23. Snap-in slot; 3. Protective frame; 31. Bending portion; 4. Sliding mechanism; 41. Meshing rack; 42. Fixed limit plate; 43. Sliding gear; 44. Sliding drive motor; 45. Mobile lifting telescopic rod; 46. Fixed lifting telescopic rod; 47. Support roller; 5. Snap-in mechanism; 51. Snap-in column; 52. Return spring; 53. Snap-in electromagnet; 6. Support damping mechanism; 61. Opening and closing drive unit; 611. Opening and closing drive motor; 612. Opening and closing Gear; 613, intermediate gear; 614, transmission gear; 62, support unit; 621, support shaft; 622, arc support plate; 623, adjustment hole; 63, support reinforcement plate; 64, ball plunger; 65, plug-in mechanism; 651, fixed sleeve; 652, movable sleeve; 653, plug-in plate telescopic rod; 654, upper limit ring; 655, limit convex ring; 656, positioning ball; 657, positioning through hole; 658, plug-in column; 659, positioning ring groove; 66, height adjustment component; 661, push telescopic rod; 662, first wedge block; 663, second wedge block; 67, damping member. DETAILED DESCRIPTION

[0021] In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the invented product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In the description of the present invention, it should also be noted that, unless otherwise clearly specified and limited, the terms "setting", "installation", and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] The embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.

[0023] like Figure 1 As shown, a shockproof adjustable manhole cover comprises a base 1 and a control terminal, a sliding mechanism 4 and a cover body 2, wherein the cover body 2 is provided with two mirror images. Figure 1 Only one cover 2 is shown. Figure 2As shown, a protective frame 3 is hinged on the cover body 2, and the protective frame 3 is set in the receiving groove 21 in the cover body 2. When the cover body 2 is not opened, the protective frame 3 is in the receiving groove 21. After the cover body 2 is opened, the protective frame 3 can be opened to be in a vertical state, which plays a role of a protective reminder, and no additional protective equipment is required. The contact surface between the protective frame 3 and the receiving groove 21 is provided with a shockproof rubber pad embedded with an adsorption magnet, and the top of the protective frame 3 is provided with a bending portion 31, and the bending portion 31 is attached to one side of the cover body 2, so that when the cover body 2 is in a closed state, the protective frame 3 is reliably fixed in the receiving groove 21.

[0024] The cover 2 is connected to the base 1 through a sliding mechanism 4. Figure 3 As shown, the sliding mechanism 4 includes a meshing rack 41 fixed to the inner side of the base 1, a fixed limit plate 42 is fixed on the upper side of the meshing rack 41, a sliding gear 43 meshing with the meshing rack 41 is arranged below the fixed limit plate 42, the sliding gear 43 is connected to a sliding drive motor 44, the sliding drive motor 44 is connected to a mobile lifting telescopic rod 45, the cylinder of the mobile lifting telescopic rod 45 is connected to a connecting plate, one end of the connecting plate is arranged in the strip groove of the fixed limit plate 42, which plays a role in limiting the rotation of the mobile lifting telescopic rod 45. The telescopic end of the mobile lifting telescopic rod 45 is connected to the inner side of the cover body 2, the inner side of the base 1 is arranged with a fixed lifting telescopic rod 46, the telescopic end of the fixed lifting telescopic rod 46 is arranged with a supporting roller 47, and the supporting roller 47 is arranged in the guide groove 22 inside the cover body 2; the sliding drive motor 44, the mobile lifting telescopic rod 45 and the fixed lifting telescopic rod 46 are all electrically connected to the control terminal.

[0025] When it is necessary to open the cover body 2, the mobile lifting telescopic rod 45 and the fixed lifting telescopic rod 46 are started, so that the mobile lifting telescopic rod 45 and the fixed lifting telescopic rod 46 lift the cover body 2 synchronously, and then the sliding drive motor 44 is started, so that the mobile lifting telescopic rod 45 drives the cover body 2 to move along the direction of the meshing rack 41 until the mobile lifting telescopic rod 45 moves to the tail end of the meshing rack 41 and stops, and the two cover bodies 2 move away from each other, thereby realizing the opening of the cover body 2.

[0026] The cover body 2 is provided with a clamping mechanism 5 on both sides. Figure 5 As shown, the clamping mechanism 5 includes a clamping column 51, which is connected to the clamping electromagnet 53 through a return spring 52. The clamping electromagnet 53, the return spring 52 and one end of the clamping column 51 are all arranged in the clamping groove 23 on the side of the cover body 2. The edge of the base 1 is provided with a clamping through hole 11 arranged opposite to the clamping column 51. The clamping electromagnet 53 is electrically connected to the control terminal. The clamping column 51 is contracted or extended out of the clamping groove 23 by turning the clamping electromagnet 53 on or off, thereby realizing the clamping connection between the cover body 2 and the base 1 and improving the shockproof performance.

[0027] The base 1 is provided with a support damping mechanism 6, which includes an opening and closing driving unit 61 arranged on the inner wall of the base 1, and the opening and closing driving unit 61 is connected to two mirror-image support units 62, and the support units 62 are provided with a damping member 67 detachably connected to the cover 2. Figure 4 As shown, the opening and closing drive unit 61 includes an opening and closing drive motor 611 installed on the base 1, the output shaft of the opening and closing drive motor 611 is connected to the opening and closing gear 612, the opening and closing gear 612 is meshed with the rotating gear of one of the support units 62, the opening and closing gear 612 is meshed with the intermediate gear 613 rotatably connected to the inner wall of the base 1, the rotating shaft of the intermediate gear 613 is connected to the transmission gear 614, the transmission gear 614 is connected to the rotating gear of the other support unit 62 through a chain, and the opening and closing drive motor 611 is electrically connected to the control terminal.

[0028] The support unit 62 includes a support shaft 621 rotatably connected to the base 1, and a plurality of arc-shaped support plates 622 are installed on the support shaft 621 in parallel. A damping member 67 is installed at one end of the arc-shaped support plate 622 away from the support shaft 621. After the cover body 2 is opened, the opening and closing drive motor 611 is started to rotate the two support shafts 621, so that the arc-shaped support plate 622 rotates outward from the base 1 by not less than 90°, thereby realizing protection on both sides of the base 1.

[0029] A plurality of support reinforcement plates 63 arranged in parallel are slidably arranged on both sides of the bottom of the base 1, and a ball head plunger 64 is arranged on the side of the support reinforcement plate 63. Figure 6 As shown, the ball plunger 64 is arranged opposite to the positioning groove 13 in the slide groove 12 of the base 1, and a plurality of support reinforcement plates 63 are connected by a connecting plate. After the arc-shaped support plate 622 is rotated outwardly of the base 1 into place, the connecting plate is operated to push the plurality of support reinforcement plates 63 inward to expand the inlet space of the base 1.

[0030] A plug-in mechanism 65 is provided on the top of the damping member 67 to achieve a detachable connection. Figure 7 As shown, the plug-in mechanism 65 includes a plug-in socket, which includes a fixed sleeve 651, a movable sleeve 652 is sleeved on the outer side of the fixed sleeve 651, and a plug-in plate telescopic rod 653 is connected to the bottom of the movable sleeve 652. An upper limit ring 654 is provided on the fixed sleeve 651, and a positioning ball 656 is provided between the upper limit ring 654 and the limiting convex ring 655 on the inner side of the movable sleeve 652. The upper end surface of the limiting ring is an inclined surface, and the fixed sleeve 651 is provided with a positioning through hole 657 arranged opposite to the positioning ball 656. A plug-in column 658 is provided at the bottom of the cover body 2, and a positioning ring groove 659 is provided on the circumferential side of the plug-in column 658. The positioning ring groove 659 is arranged opposite to the positioning ball 656, and the plug-in plate telescopic rod 653 is electrically connected to the control terminal.

[0031] When the cover body 2 reaches the covering position, the plug-in plate telescopic rod 653 contracts, causing the movable sleeve 652 to move downward, and the movable lifting telescopic rod 45 and the fixed lifting telescopic rod 46 extend and retract, so that the plug-in column 658 is inserted into the fixed sleeve 651, the plug-in plate telescopic rod 653 extends, and the movable sleeve 652 returns to the initial position, so that the positioning ball 656 passes through the positioning through hole 657 and is engaged with the positioning ring groove 659 under the squeezing action of the limiting convex ring 655, thereby realizing the vertical limitation of the fixed sleeve 651 and the plug-in column 658.

[0032] The damping member 67 is a hydraulic shock absorber disposed in the adjustment hole 623 of the arc-shaped support plate 622. A pressure sensor is disposed on the top of the damping member 67, and a height adjustment component 66 is disposed on the bottom of the damping member 67. Figure 8 As shown, the height adjustment assembly 66 includes a push telescopic rod 661 disposed in the arc-shaped support plate 622, and a first wedge block 662 is disposed at the telescopic end of the push telescopic rod 661, and the first wedge block 662 contacts the second wedge block 663 at the bottom of the damping member 67, and the pressure sensor and the push telescopic rod 661 are both electrically connected to the control terminal; When the cover body 2 is covered, the control terminal adjusts the extension and contraction amount of the telescopic rod 661 according to the pressure of the pressure sensor, thereby adjusting the pressure between the damping member 67 and the cover body 2 .

[0033] A distance sensor is also provided on the circumferential side of the damping member 67, and the distance sensor is electrically connected to the control terminal. When the arc support plate 622 rotates 90°, the data of the distance sensors of the two rows of damping members 67 are used. When the distance data is within the set range, it is determined that the manhole cover has not settled, otherwise the control terminal issues a settlement warning.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that they can still modify or replace the technical solution of the present invention with equivalents, and these modifications or equivalent replacements cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of the present invention.

Claims

1. A seismic-proof and adjustable manhole cover, comprising a base and a control terminal, characterized in that: It also includes a cover body connected to the base through a sliding mechanism, two cover bodies are arranged in a mirror image, a protective frame is hinged on the cover body, the protective frame is arranged in a receiving groove in the cover body, a clamping mechanism is arranged on both sides of the cover body, a support damping mechanism is arranged in the base, the support damping mechanism includes an opening and closing drive unit arranged on the inner wall of the base, the opening and closing drive unit is connected to the two mirror image support units, and a damping member detachably connected to the cover body is arranged on the support unit; The sliding mechanism, the clamping mechanism, the opening and closing driving unit and the damping member are all electrically connected to the control terminal.

2. The shockproof and adjustable manhole cover according to claim 1 is characterized in that: The sliding mechanism includes a meshing rack fixed to the inner side of the base, a fixed limit plate is fixed to the upper side of the meshing rack, a sliding gear meshing with the meshing rack is arranged below the fixed limit plate, the sliding gear is connected to a sliding drive motor, the sliding drive motor is connected to a mobile lifting telescopic rod, the telescopic end of the mobile lifting telescopic rod is connected to the inner side of the cover body, a fixed lifting telescopic rod is arranged on the inner side of the base, and a support roller is arranged at the telescopic end of the fixed lifting telescopic rod, and the support roller is arranged in a guide groove on the inner side of the cover body; The sliding drive motor, the mobile lifting and telescopic rod and the fixed lifting and telescopic rod are all electrically connected to the control terminal; When the cover body needs to be opened, the mobile lifting telescopic rod and the fixed lifting telescopic rod are started, so that the mobile lifting telescopic rod and the fixed lifting telescopic rod synchronously lift the cover body, and then the sliding drive motor is started, so that the mobile lifting telescopic rod drives the cover body to move along the direction of the meshing rack until the mobile lifting telescopic rod moves to the tail of the meshing rack and stops, and the two cover bodies move away from each other, so that the cover body is opened.

3. The shockproof and adjustable manhole cover according to claim 2 is characterized in that: A shockproof rubber pad embedded with an adsorption magnet is arranged on the contact surface between the protection frame and the containing groove, and a bending portion is arranged on the top of the protection frame, and the bending portion is in contact with one side of the cover body.

4. The shockproof and adjustable manhole cover according to claim 3 is characterized in that: The clamping mechanism includes a clamping column, which is connected to the clamping electromagnet through a return spring. The clamping electromagnet, the return spring and one end of the clamping column are all arranged in a clamping groove on the side of the cover body, and a clamping through hole is opened on the edge of the base opposite to the clamping column.

5. The shockproof and adjustable manhole cover according to claim 4 is characterized in that: The opening and closing driving unit includes an opening and closing driving motor installed on the base, the output shaft of the opening and closing driving motor is connected to an opening and closing gear, the opening and closing gear is meshed with a rotating gear of one of the supporting units, the opening and closing gear is meshed with an intermediate gear rotatably connected to the inner wall of the base, the rotating shaft of the intermediate gear is connected to a transmission gear, and the transmission gear is connected to the rotating gear of the other supporting unit through a chain; The opening and closing driving motor is electrically connected to the control terminal.

6. The shockproof and adjustable manhole cover according to claim 5 is characterized in that: The support unit comprises a support shaft rotatably connected to the base, a plurality of arc-shaped support plates arranged in parallel are mounted on the support shaft, and a damping member is mounted on one end of the arc-shaped support plate away from the support shaft; After the cover is opened, the opening and closing drive motor is started to rotate the two supporting shafts, so that the arc-shaped support plate rotates outwardly of the base by not less than 90°, thereby realizing protection on both sides of the base.

7. The shockproof and adjustable manhole cover according to claim 6 is characterized in that: Several support reinforcement plates arranged in parallel are slidably arranged on both sides of the bottom of the base, and ball head plungers are arranged on the sides of the support reinforcement plates. The ball head plungers are arranged opposite to the positioning grooves in the base slide grooves, and the several support reinforcement plates are connected by connecting plates; After the arc-shaped support plate is rotated outwardly of the base to a certain position, the connecting plate is operated to push a plurality of support reinforcement plates inwardly to expand the inlet space of the base.

8. The shockproof and adjustable manhole cover according to claim 7 is characterized in that: A plug-in mechanism for realizing detachable connection is arranged on the top of the damping member, the plug-in mechanism includes a plug-in seat, the plug-in seat includes a fixed sleeve, a movable sleeve is arranged on the outer side of the fixed sleeve, a plug-in plate telescopic rod is connected to the bottom of the movable sleeve, an upper limit ring is arranged on the fixed sleeve, a positioning ball is arranged between the upper limit ring and the limiting convex ring on the inner side of the movable sleeve, the upper end face of the limiting ring is an inclined surface, the fixed sleeve is provided with a positioning through hole arranged opposite to the positioning ball, a plug-in column is arranged at the bottom of the cover body, a positioning ring groove is arranged on the circumferential side of the plug-in column, and the positioning ring groove is arranged opposite to the positioning ball; The plug board telescopic rod is electrically connected to the control terminal; When the cover body reaches the covering position, the plug plate telescopic rod contracts, causing the movable sleeve to move downward, and the movable lifting telescopic rod and the fixed lifting telescopic rod are extended and retracted, so that the plug-in column is inserted into the fixed sleeve, the plug plate telescopic rod is extended, and the movable sleeve returns to the initial position, so that the positioning ball passes through the positioning through hole and is engaged with the positioning ring groove under the squeezing action of the limiting convex ring, thereby realizing the vertical limitation of the fixed sleeve and the plug-in column.

9. The shockproof and adjustable manhole cover according to claim 8 is characterized in that: The damping member is a hydraulic shock absorber arranged in the adjustment hole of the arc-shaped support plate, a pressure sensor is arranged on the top of the damping member, a height adjustment assembly is arranged on the bottom of the damping member, and the height adjustment assembly includes a pushing telescopic rod arranged in the arc-shaped support plate, and a first wedge block is arranged at the telescopic end of the pushing telescopic rod, and the first wedge block contacts the second wedge block at the bottom of the damping member; The pressure sensor and the push telescopic rod are both electrically connected to the control terminal; When the cover body is covered, the control terminal adjusts the extension amount of the telescopic rod according to the pressure of the pressure sensor, thereby adjusting the pressure between the damping member and the cover body.

10. The shockproof and adjustable manhole cover according to claim 9, characterized in that: A distance sensor is also provided on the circumferential side of the damping element, and the distance sensor is electrically connected to the control terminal; When the arc support plate rotates 90°, the data of the distance sensors of the two rows of damping parts are used. When the distance data is within the set range, it is determined that the manhole cover has not settled, otherwise the control terminal issues a settlement warning.

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