Flood prevention well lid capable of ascending and descending

Abstract

The utility model relates to the technical field of drainage well lids, in particular to a liftable flood control well lid which comprises a well ring fixed to the edge of a well way, the well ring is coaxially provided with a well lid, and at least three lifting mechanisms for controlling the well lid to ascend and descend are evenly distributed around the well lid by one circle of the well ring. The lifting mechanism comprises a radial sliding groove formed in the lower side face of the well ring, the radial sliding groove is connected with a sliding block in a sliding mode, a connecting rod is hinged between the sliding block and the well lid, and the well ring is provided with a driving mechanism controlling the sliding block to move. The well lid can be operated to sink to the position below the well ring, so that flood can flow down along the outer edge of the well lid, the flood discharge speed is increased, due to the fact that the well lid sinks, water pressure does not need to be overcome in the operation process, labor is saved in the operation process, large sundries can be prevented from entering a well, and the hidden danger that people fall into the well is eliminated.

Description

Technical Field

[0001] The utility model relates to the technical field of drainage well covers, in particular to a liftable flood control well cover. Background Technique

[0002] In the existing construction standards, there is no clear regulation on the drainage flow of drainage well covers. In case of sudden heavy rainfall and other situations, the existing drainage well covers often cause waterlogging due to insufficient drainage flow, which in turn leads to road closure and affects traffic. In the face of this situation, the well cover is usually directly lifted to speed up the drainage, but the floodwater will make it difficult to open the well cover, and the opened well cover will also allow sundries in the water to directly enter the municipal pipeline, easily causing blockage of the municipal pipeline. In addition, the lifted well cover also poses a safety hazard. Content of the Utility Model

[0003] The purpose of the utility model is to provide a liftable flood control well cover aiming at the deficiencies of the prior art. It is provided with a liftable drainage well cover. During floods, the well cover sinks, and the accumulated water can flow into the well channel from around the well cover, thereby increasing the drainage speed, and having the function of blocking large sundries and eliminating the hidden danger of people falling into the well channel.

[0004] The technical solution adopted by the utility model to solve its technical problems is: a liftable flood control well cover, including a well ring fixed to the edge of the well channel, a well cover coaxially arranged with the well ring, at least three lifting mechanisms for controlling the lifting of the well cover are evenly distributed around the well cover on the well ring. The lifting mechanism includes a radial sliding groove arranged on the lower side of the well ring, a sliding block is slidably connected to the radial sliding groove, a connecting rod is hinged between the sliding block and the well cover, and a driving mechanism for controlling the movement of the sliding block is arranged on the well ring.

[0005] Preferably, a stop plate for preventing the sliding block from derailing is arranged at the front end of the radial sliding groove.

[0006] Preferably, there are eight lifting mechanisms, and two of the lifting mechanisms located on the same diameter are provided with the driving mechanism. Setting two driving mechanisms and operating them simultaneously can prevent the lifting mechanisms from failing to be linked in time and ensure the safe lifting of the well cover.

[0007] Preferably, the driving mechanism includes a gear rotatably connected to the well ring and a rack arranged on the sliding block. The gear meshes with the rack, a handwheel is fixed to the shaft end of the gear, and an operation hole is opened on the well ring at the position of the handwheel.

[0008] Preferably, a direction mark for operating the handwheel is arranged beside the operation hole on the well ring.

[0009] Preferably, four hanging rods for preventing the manhole cover from sinking are circumferentially and uniformly arranged along the outer edge of the upper surface of the manhole cover, and the middle part of the hanging rod is rotatably connected to the manhole cover.

[0010] Preferably, the manhole cover is provided with three general drainage ports.

[0011] Preferably, an intercepting net is arranged below the manhole cover, and the periphery of the intercepting net is suspended on the manhole ring.

[0012] Preferably, the gap between the manhole cover and the manhole ring after the manhole cover sinks to the lowest end is greater than 20 mm.

[0013] Preferably, a notch for avoiding interference is arranged at the connecting rod of the manhole cover.

[0014] The beneficial effects of the utility model are as follows: a flood control manhole cover capable of lifting and lowering, which comprises a manhole ring fixed on the edge of a well passage, a manhole cover coaxially arranged with the manhole ring, at least three lifting mechanisms for controlling the lifting and lowering of the manhole cover uniformly arranged around the manhole cover in a circumferential direction, the lifting mechanism comprising a radial sliding groove arranged on the lower side surface of the manhole ring, a sliding block slidably connected to the radial sliding groove, a connecting rod hinged between the sliding block and the manhole cover, and a driving mechanism for controlling the movement of the sliding block arranged on the manhole ring. The manhole cover of the utility model can be operated to sink below the manhole ring, so that flood water can flow down along the outer edge of the manhole cover, thereby increasing the flood discharge speed. Because the manhole cover sinks, there is no need to overcome water pressure during operation, the operation is labor-saving, and large sundries can be blocked from entering the well passage, and the hidden danger of personnel falling into the well passage can be eliminated. Description of the Drawings

[0015] Figure 1 is the front view of a flood control manhole cover capable of lifting and lowering of the utility model;

[0016] Figure 2 is Figure 1 the top view of

[0017] Figure 3 is Figure 1 the sectional view of

[0018] Figure 4 is Figure 3 the partial enlarged view of

[0019] Description of the Reference Numerals:

[0020] 1 - manhole ring, 2 - manhole cover, 21 - general drainage port, 3 - lifting mechanism, 31 - radial sliding groove, 32 - sliding block, 33 - connecting rod, 34 - stop plate, 4 - driving mechanism, 41 - gear, 42 - rack, 43 - hand wheel, 44 - operation hole, 45 - direction mark, 5 - hanging rod, 6 - intercepting net. Detailed Description of the Invention

[0021] The present utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments, and the scope of implementation of the present utility model is not limited thereto.

[0022] As Figures 1 to 4 shown, a flood control manhole cover that can be lifted in this embodiment includes a manhole ring 1 fixed to the edge of the wellbore. The manhole ring 1 is coaxially provided with a manhole cover 2. At least three lifting mechanisms 3 for controlling the lifting of the manhole cover 2 are evenly distributed around the manhole cover 2 in a circumferential direction of the manhole ring 1. The lifting mechanism 3 includes a radial chute 31 provided on the lower side surface of the manhole ring 1. A slider 32 is slidably connected to the radial chute 31. A connecting rod 33 is hinged between the slider 32 and the manhole cover 2. The manhole ring 1 is provided with a driving mechanism 4 for controlling the movement of the slider 32.

[0023] In this embodiment, eight such lifting mechanisms 3 are provided between the manhole ring 1 and the manhole cover 2, and the driving mechanisms 4 are provided in two of the lifting mechanisms 3 located on the same diameter. The driving mechanism 4 includes a gear 41 rotatably connected to the manhole ring 1 and a rack 42 provided on the slider 32. The gear 41 meshes with the rack 42. A handwheel 43 is fixed to the shaft end of the gear 41. An operation hole 44 is formed in the manhole ring 1 at the position of the handwheel 43. In addition, in order to prevent the manhole cover 2 from falling into the wellbore after sinking, a stop plate 34 for preventing the slider 32 from derailing is provided at the front end of the radial chute 31.

[0024] Under normal circumstances, the upper surface of the manhole cover 2 is flush with the manhole ring 1. In order to prevent the manhole cover 2 from falling, four hanging rods 5 are evenly distributed in a circumferential direction on the outer edge of the upper surface of the manhole cover 2. The middle part of the hanging rod 5 is rotatably connected to the manhole cover 2.

[0025] When the water volume is small, the accumulated water can be discharged from the three general drainage outlets 21 provided on the manhole cover 2; when the water volume is large, first rotate the hanging rod 5 so that it no longer abuts against the manhole ring 1, and then operate the two handwheels 43 simultaneously according to the direction marks provided beside the operation hole 44 to make the manhole cover 2 sink below the manhole ring 1. The specific principle is that the operator reaches into the operation hole 44 with both hands and rotates the handwheel 43. The rotation of the handwheel 43 drives the gear 41 to rotate, and then drives the rack 42 engaged with it to move. Since the rack 42 is fixed to the slider 32, the slider 32 also moves synchronously towards the center of the manhole cover 2, and then makes the manhole cover 2 sink by pushing the connecting rod 33. The manhole cover 2 of this embodiment can sink 25 mm below the manhole ring 1. In this way, the accumulated water can flow down from the periphery of the manhole cover 2, thereby increasing the drainage speed. When there is no need to increase the drainage speed, rotate the handwheel 43 in the reverse direction to make the manhole cover 2 rise, and rotate the hanging rod 5 to make the manhole cover 2 hang on the manhole ring 1 through the above-mentioned hanging rod 5.

[0026] In order to prevent too large sundries from falling into the wellbore and causing blockage, an interception net 6 is provided below the manhole cover 2. The periphery of the interception net 6 is suspended on the manhole ring 1, and the interception net 6 can be woven from steel wire ropes.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention. For the convenience of describing the technical solutions, the front, back, left, right, up, middle, down and other orientations used are based on the drawings, rather than a limitation on the protection scope of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the essence and scope of the technical solutions of the present invention.

Claims

1. A liftable flood control manhole cover, characterized in that: It includes a well ring fixed to the edge of the well, the well ring is coaxially provided with a well cover, the well ring is evenly distributed around the well cover with at least three lifting mechanisms for controlling the lifting of the well cover, the lifting mechanism includes a radial slide groove provided on the lower side of the well ring, the radial slide groove is slidably connected with a slider, a connecting rod is hinged between the slider and the well cover, and the well ring is provided with a driving mechanism for controlling the movement of the slider.

2. The liftable flood protection manhole cover according to claim 1, characterized in that: A stop plate is provided at the front end of the radial slide groove to prevent the slider from derailing.

3. The liftable flood protection manhole cover according to claim 1, characterized in that: There are eight lifting mechanisms, two of which are located on the same diameter and are provided with the driving mechanism.

4. The liftable flood protection manhole cover according to claim 1, characterized in that: The driving mechanism includes a gear rotatably connected to the well ring and a rack arranged on the slider, the gear is meshed with the rack, a hand wheel is fixed to the shaft end of the gear, and an operating hole is opened in the well ring at the hand wheel.

5. The liftable flood protection manhole cover according to claim 4, characterized in that: The well ring is provided with a direction mark for operating the hand wheel beside the operating hole.

6. The liftable flood protection manhole cover according to claim 1, characterized in that: Four hanging rods are evenly distributed circumferentially on the outer edge of the upper surface of the manhole cover to prevent the manhole cover from sinking, and the middle part of the hanging rod is rotatably connected to the manhole cover.

7. The liftable flood protection manhole cover according to claim 1, characterized in that: The manhole cover is provided with three universal drainage openings.

8. The liftable flood protection manhole cover according to claim 1, characterized in that: An interception net is arranged below the manhole cover, and the four sides of the interception net are suspended on the manhole ring.

9. The liftable flood protection manhole cover according to claim 1, characterized in that: After the manhole cover sinks to the lowest end, the gap between the manhole cover and the manhole ring is greater than 20 mm.

10. The liftable flood protection manhole cover according to claim 1, characterized in that: The manhole cover is provided with a notch at the connecting rod to avoid interference.

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