Cast iron well lid facilitating drainage

By designing a flared drainage notch and multiple drainage through holes on the top of the cast iron manhole cover plate, combined with the lifting device and anti-blocking net, the problem of insufficient drainage of the existing cast iron manhole cover is solved, and efficient drainage and safety monitoring is achieved.

CN223202456UActive Publication Date: 2025-08-08FUZHOU YONGSHENGDA COMPOSITE MATERIAL CO LTD
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Patent Information

Application Number
CN202422163132.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-04
Publication Date
2025-08-08
Estimated Expiration
2034-09-04

AI Technical Summary

Technical Problem

The drainage holes of the existing cast iron manhole cover are designed in a single design, resulting in insufficient water discharge and difficult to open in the case of water accumulation, which poses safety hazards.

Method used

The top of the cast iron manhole cover plate is designed to have a flare-shaped drainage notch, and is equipped with multiple drainage through holes, combining the lifting device and anti-blocking net, and the lifting device is activated through external control equipment to expose the complete drainage notch, increase the drainage amount and prevent blockage.

Benefits of technology

It realizes efficient drainage of multiple drainage channels, avoids debris blockage, improves drainage effect, and monitors the internal conditions of the manhole cover in real time through monitoring probes to ensure safety.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223202456U_ABST
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Abstract

The utility model discloses a cast iron well lid convenient for drainage, which comprises a well lid seat, a cast iron well lid plate is mounted on the well lid seat, a plurality of drainage notches are arranged at the top of the cast iron well lid plate, the drainage notches are in a horn shape with a small upper part and a large lower part, and drainage through holes are arranged at two ends of the drainage notches. A lifting device is arranged below the cast iron well lid plate, the output end of the lifting device is connected with a lifting plate, the lifting plate is provided with a groove filling part corresponding to the drainage notch, the size of the groove filling part is smaller than that of the drainage notch, and anti-blocking nets are arranged on the two sides of the upper end of the groove filling part. A movable distance is reserved between the anti-blocking net and the inner side wall of the drainage notch, the lifting device is in communication connection with external control equipment, the external control equipment controls the lifting device to drive the groove filling part to descend, the complete drainage notch is exposed, and drainage of the cast iron well lid is facilitated.
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Description

Technical Field

[0001] The utility model relates to the technical field of manhole covers, in particular to a cast iron manhole cover which is convenient for drainage. Background Art

[0002] In daily life, manhole covers on the road are flooded. If the water on the road cannot be drained away in time, there will be a safety hazard. So people will step on the accumulated water to open the manhole cover. However, due to the effect of the accumulated water, it is difficult to open the manhole cover, which is not conducive to operation. In the prior art, such as patent CN218933221U, a cast iron manhole cover for convenient drainage is disclosed, which includes a manhole cover body and a mounting ring matching the manhole cover body. A drainage hole is opened on the manhole cover body, and a drainage device including a mounting seat, a switch baffle and a switch control mechanism is arranged at the bottom of the manhole cover body. The switch baffle is fitted with the manhole cover body under normal conditions to close the drainage hole. When drainage is required, the switch baffle is pushed downward by the switch control mechanism to open the drainage hole. After drainage is completed, the switch baffle is reset by the switch control mechanism. However, having only one drainage hole is not conducive to increasing the drainage volume and improving the drainage effect. Utility Model Content

[0003] The purpose of the present invention is to overcome the above-mentioned defects or problems existing in the background technology and to provide a cast iron manhole cover that is convenient for drainage.

[0004] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0005] A cast iron manhole cover for convenient drainage includes a manhole cover seat, a cast iron manhole cover plate is installed on the manhole cover seat, a plurality of drainage slots are provided on the top of the cast iron manhole cover plate, the drainage slots are in the shape of a trumpet with a small top and a large bottom, and drainage through holes are arranged at both ends of each drainage slot, a lifting device is arranged under the cast iron manhole cover plate, the output end of the lifting device is connected to the lifting plate, and the lifting plate is provided with a slot filling portion corresponding to the drainage slot, the size of the slot filling portion is smaller than the size of the drainage slot, anti-blocking nets are arranged on both sides of the upper end of the slot filling portion, and a movable distance is left between the anti-blocking net and the inner wall of the drainage slot, and the lifting device is communicatively connected to an external control device.

[0006] In certain embodiments of the present invention, the drainage notches are arranged in sequence on the top of the cast iron manhole cover.

[0007] In certain embodiments of the present invention, the surfaces of the manhole cover seat and the cast iron manhole cover plate are coated with an anti-rust layer.

[0008] In certain embodiments of the present invention, the anti-blocking net includes a grid, a net body is arranged inside the grid, and one side of the grid is installed on the slot filling part.

[0009] In certain embodiments of the present invention, the upper end of the slot filling portion is lower than the top opening of the drainage slot, and the bottom of the slot filling portion is connected to the top of the lifting plate through a connecting rod.

[0010] In certain embodiments of the present invention, an LED warning light is arranged on one side of the connecting rod.

[0011] In some embodiments of the present invention, a water guide portion is provided on the top of the lifting plate, and the water guide portion is in a convex shape with a higher middle and a lower outer side.

[0012] In certain embodiments of the present invention, the lifting device includes a telescopic rod, which is vertically mounted on the mounting frame, and a telescopic end of the telescopic rod is connected to the back side of the lifting plate.

[0013] In certain embodiments of the present invention, a monitoring probe is provided below the cast iron manhole cover, the monitoring probe is arranged outside the lifting device, and a waterproof shield is provided on the top of the monitoring probe.

[0014] In certain embodiments of the present invention, the lifting device and the monitoring probe are electrically connected to the controller, and a communication device is provided in the controller.

[0015] From the above description of the present invention, it can be seen that compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. Multiple drainage holes combined with drainage grooves can help increase the drainage capacity of the cast iron manhole cover, and the anti-blocking net can help prevent debris from entering and clogging the drainage grooves.

[0017] 2. The external control device sends a start signal to the lifting device, causing the lifting device to drive the slot filling part down, exposing a complete drainage slot, which is convenient for the cast iron manhole cover to drain water and improve the drainage effect.

[0018] 3. A monitoring probe is installed under the cast iron manhole cover, which can monitor the internal space of the manhole cover and the drainage conditions in real time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 It is a structural diagram of the utility model;

[0021] Figure 2 For the utility model Figure 1 AA cross-section of

[0022] Figure 3 Schematic diagram of the slot filling portion of the present invention;

[0023] Description of main reference numerals:

[0024] 1. Cast iron manhole cover, 10. Drainage groove, 11. Drainage through hole, 2. Manhole cover seat, 20. Manhole wall, 21. Step part, 3. Lifting device, 30. Lifting plate, 31. Slot filling part, 32. Connecting rod, 33. Water guide part, 4. Anti-blocking net, 40. Installation part, 5. Installation frame. DETAILED DESCRIPTION

[0025] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are preferred embodiments of the present invention and should not be regarded as excluding other embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0026] In the claims, description and the above-mentioned drawings of the present utility model, unless otherwise clearly defined, the use of terms such as "first", "second" or "third" is to distinguish different objects rather than to describe a specific order.

[0027] In the claims, specification and the above-mentioned drawings of the present utility model, unless otherwise expressly defined, directional words, such as the terms "center", "transverse", "longitudinal", "horizontal", "vertical", "top", "bottom", "inside", "outside", "up", "down", "front", "back", "left", "right", "clockwise", "counterclockwise" and the like, indicating directions or positional relationships are based on the directions and positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the specific protection scope of the present utility model.

[0028] In the claims, specification and the above drawings of the present utility model, unless otherwise clearly defined, if the terms "fixed connection" or "fixed connection" are used, they should be understood in a broad sense, that is, any connection method without any displacement relationship and relative rotation relationship between the two parties, that is to say, including non-detachable fixed connection, detachable fixed connection, integral connection and fixed connection through other devices or elements.

[0029] In the claims, description and drawings of the present utility model, if the terms "include", "have" and their variations are used, they are intended to mean "including but not limited to".

[0030] See also Figure 1-3 :

[0031] A cast iron manhole cover for convenient drainage includes a manhole cover base 2 and a cast iron manhole cover plate 1 that matches the manhole cover base 2. The cast iron manhole cover plate 1 is installed on the manhole cover base 2. A step portion 21 is provided on the inner side of the manhole cover base 2 for convenient placement of the cast iron manhole cover plate 1. A plurality of drainage grooves 10 are provided on the top of the cast iron manhole cover plate 1. The cross-section of the drainage grooves 10 is in the shape of a trumpet that is small at the top and large at the bottom. Compared with traditional vertical through holes, the trumpet-shaped drainage grooves 10 are not easily clogged.

[0032] As an embodiment, the drainage grooves 10 are arranged in sequence on the top of the cast iron manhole cover 1, and drainage holes 11 are arranged at both ends of each drainage groove 10. Multiple drainage holes 11 cooperate with the drainage grooves 10 to help increase the drainage capacity of the cast iron manhole cover.

[0033] A lifting device 3 is arranged below the cast iron manhole cover 1. The output end of the lifting device 3 is connected to a lifting plate 30. The lifting plate 30 is provided with a slot-filling portion 31 corresponding to the drainage notch 10. The lifting device 3 drives the lifting plate 30 to move up and down in the vertical direction. It is understandable that the size of the slot-filling portion 31 is smaller than the size of the drainage notch 10. The slot-filling portion 31 is a long strip structure with an isosceles trapezoidal cross section. When drainage is required, the lifting device 3 drives the slot-filling portion 31 to descend, facilitating water flow from the drainage notch 10 into the cast iron manhole cover. It is understandable that in daily use, when the lifting device 3 is not activated, accumulated water on the road surface can also flow into the cast iron manhole cover along the gap between the drainage notch 10 and the slot-filling portion 31 and the drainage through-hole 11.

[0034] As an embodiment, the upper end of the slot filling portion 31 is lower than the top opening of the drainage slot 10 , and the distance between adjacent drainage slots 10 is smaller than the width of the top opening of the drainage slot 10 .

[0035] Anti-blocking nets 4 are arranged on both sides of the upper end of the slot filling portion 31, and a movable gap is left between the anti-blocking nets 4 and the inner side walls of the drainage slot 10. When not draining, the anti-blocking nets 4 help prevent debris from entering and clogging the drainage slot 10.

[0036] As an embodiment, the anti-blocking net 4 includes a grid, a mesh body is arranged inside the grid, and the inner side of the grid is mounted on the side wall of the slot-filling portion 31. Preferably, a mounting portion 40 is provided on the inner side of the grid corresponding to the outer wall of the slot-filling portion 31 and is installed on the slot-filling portion 31 via fasteners. It is understood that the mounting portion 40 and the slot-filling portion 31 are correspondingly provided with mounting holes.

[0037] As an embodiment, the surfaces of the manhole cover seat 2 and the cast iron manhole cover plate 1 are coated with an anti-rust layer, which effectively prevents the manhole cover seat 2 and the cast iron manhole cover plate 1 from rusting and prolongs their service life.

[0038] As an embodiment, the lifting device 3 includes a telescopic rod, which is vertically mounted on a mounting frame 5, and the outer side of the mounting frame 5 is mounted on the well wall 20. The telescopic end of the telescopic rod is connected to the back side of the lifting plate 30, thereby driving the lifting plate 30 to rise and fall, and the lifting plate 30 serves as a water barrier for the telescopic rod.

[0039] As an embodiment, a water guide portion 33 is provided on the top of the lifting plate 30. The water guide portion 33 is in a convex shape with a high middle and low outer sides to facilitate drainage.

[0040] As an embodiment, the bottom of the slot filling portion 31 is connected to the top of the lifting plate 30 via a connecting rod 32 , and the connecting rods 32 are arranged on the water guiding portion 33 in sequence.

[0041] The lifting device 3 is communicatively connected to an external control device. The external control device sends a start signal to the lifting device 3, causing the lifting device 3 to lower the slot-filling portion 31, exposing a complete drainage slot 10, thereby facilitating drainage of the cast iron manhole cover. Preferably, the external control device sends a start signal to the lifting device 3 when it receives rainfall information, or the external control device is manually operated to send a communication signal.

[0042] It is understandable that, in actual applications, drainage slots 10 of different widths can be customized and selected according to expected drainage requirements.

[0043] As an embodiment, a monitoring probe is provided below the cast iron manhole cover 1. The monitoring probe is mounted on the manhole wall 20 outside the lifting device 3. A waterproof shield is provided on the top of the monitoring probe. The monitoring probe can monitor the interior space of the manhole cover and the drainage conditions in real time. Preferably, the monitoring probe is mounted on the manhole wall 20 and located on the upper side of the mounting frame 5.

[0044] As an implementation method, the lifting device 3 and the monitoring probe are electrically connected to the controller, and a communication device is provided in the controller, which is connected to the external control device through the communication device in the controller.

[0045] As an embodiment, an LED warning light is arranged on one side of the connecting rod 32. Specifically, the LED warning light is installed on the top of the lifting plate 30. The LED warning light is electrically connected to the controller. When the lifting device 3 starts to drive the lifting plate 30 to descend, the LED warning light is turned on, and the light emitted by the LED warning light can be seen from outside the drainage groove 10.

[0046] The above description and embodiments are used to explain the scope of protection of the utility model, but do not constitute a limitation on the scope of protection of the utility model. Based on the enlightenment of the utility model or the above embodiments, modifications, equivalent replacements, or other improvements to the embodiments of the utility model or part of the technical features thereof that can be obtained by ordinary technicians in this field through logical analysis, reasoning, or limited experiments in combination with common knowledge, ordinary technical knowledge in this field and / or existing technology should be included in the scope of protection of the utility model.

Claims

1. A cast iron manhole cover for convenient drainage, characterized by: The invention comprises a manhole cover seat (2), the manhole cover seat (2) is installed with a cast iron manhole cover plate (1), a plurality of drainage slots (10) are provided on the top of the cast iron manhole cover plate (1), the drainage slots (10) are in the shape of a trumpet with a small top and a large bottom, and drainage through holes (11) are arranged at both ends of each drainage slot (10), a lifting device (3) is arranged below the cast iron manhole cover plate (1), the output end of the lifting device (3) is connected to a lifting plate (30), a slot filling portion (31) is arranged on the lifting plate (30) corresponding to the drainage slot (10), the size of the slot filling portion (31) is smaller than the size of the drainage slot (10), anti-blocking nets (4) are arranged on both sides of the upper end of the slot filling portion (31), and a movable spacing is left between the anti-blocking net (4) and the inner side wall of the drainage slot (10), and the lifting device (3) is communicatively connected to an external control device.

2. The cast iron manhole cover for convenient drainage according to claim 1, characterized in that: The drainage notches (10) are arranged in a line in sequence on the top of the cast iron manhole cover (1).

3. The cast iron manhole cover for convenient drainage according to claim 1, characterized in that: The surfaces of the manhole cover seat (2) and the cast iron manhole cover plate (1) are coated with an anti-rust layer.

4. The cast iron manhole cover for convenient drainage according to claim 1, characterized in that: The anti-blocking net (4) comprises a grid frame, a net body is arranged inside the grid frame, and one side of the grid frame is installed on the slot filling portion (31).

5. The cast iron manhole cover for convenient drainage according to claim 1, characterized in that: The upper end of the slot filling portion (31) is lower than the top opening of the drainage slot (10), and the bottom of the slot filling portion (31) is connected to the top of the lifting plate (30) via a connecting rod (32).

6. The cast iron manhole cover for convenient drainage according to claim 5, characterized in that: An LED warning light is arranged on one side of the connecting rod (32).

7. The cast iron manhole cover for convenient drainage according to claim 1, characterized in that: A water guide portion (33) is provided on the top of the lifting plate (30), and the water guide portion (33) is in a convex shape with a high middle and a low outer side.

8. The cast iron manhole cover for convenient drainage according to claim 1, characterized in that: The lifting device (3) comprises a telescopic rod, which is vertically mounted on a mounting frame (5), and a telescopic end of the telescopic rod is connected to the back side of a lifting plate (30).

9. A cast iron manhole cover for convenient drainage according to any one of claims 1 to 8, characterized in that: A monitoring probe is provided below the cast iron manhole cover (1), the monitoring probe is arranged outside the lifting device (3), and a waterproof shield is provided on the top of the monitoring probe.

10. The cast iron manhole cover for convenient drainage according to claim 9, characterized in that: The lifting device (3), the monitoring probe and the controller are electrically connected, and a communication device is provided in the controller.