Sewer pollution discharge well lid
By installing ventilation holes and moisture-proof layers on the sewer sewage discharge manhole cover, the problem that existing manhole covers cannot discharge biogas is solved, and the moisture-proof and breathable function of the manhole cover is realized, ensuring safety and extending the service life.
Patent Information
- Application Number
- CN202421993810.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-16
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-08-16
AI Technical Summary
The existing sewer sewage manhole covers lack moisture-proof and breathable function, which leads to the inability to discharge biogas in the sewer in time, and accumulates into a safety hazard.
A sewage sewage discharge manhole cover is designed, using polyethylene foam as the moisture-proof layer, and a ventilation hole and a barrier barrel are installed on the cover body. The ventilation holes are opened through the opening, and the top of the barrier barrel is threaded to connect the screw cap to facilitate the control of biogas emissions.
Through the setting of ventilation holes, the sewer is vented to the outside world to dissipate biogas, avoid accumulation, and ensure safety; the moisture-proof layer and rain-proof cover effectively prevent moisture and rainwater from entering, extending service life; the screw cap can control biogas emissions and prevent urban environmental pollution.
Smart Images

Figure CN222909004U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of sewer sewage well covers, and particularly relates to a sewer sewage well cover. Background Art
[0002] Sewer sewage well covers are mainly used in sewer systems. Their function is to cover and protect the sewer entrance to prevent people or objects from accidentally falling in. Such well covers are usually located on the street and are used to collect and discharge domestic sewage and wastewater in the city.
[0003] Existing sewer sewage well covers do not have the function of moisture-proof and ventilation. They cannot effectively discharge the biogas in the sewer in time. The accumulation of biogas is a safety hazard because the accumulation of biogas may cause an explosion. The generation of biogas is mainly due to the decomposition of organic matter in the sewer under an oxygen-deficient environment. If not ventilated, these gases may accumulate and reach the explosion limit, affecting safety. Summary of the Utility Model
[0004] The purpose of the utility model is to provide a sewer sewage well cover, which has the characteristics of facilitating ventilation between the sewer and the outside world, enabling the biogas inside the sewer to disperse, avoiding the accumulation of biogas, and ensuring safety.
[0005] To achieve the above purpose, the utility model provides the following technical solution: A sewer sewage well cover includes a frame. The bottom end of the inner wall of the frame is fixedly connected with an installation bottom frame. The upper end surface of the installation bottom frame is inlaid with a cover body. Two ventilation holes are penetrated through the upper end surface of the cover body. Two blocking cylinders are fixedly connected to the upper end surface of the cover body. The two blocking cylinders are respectively located directly above the two ventilation holes. The tops of the two blocking cylinders are both threadedly connected with screw caps. Support rods are arranged on the left and right sides of the two blocking cylinders. The lower end surfaces of multiple support rods are fixedly connected with the upper end surface of the cover body. The upper end surfaces of the two support rods are fixedly connected with a rain-proof cover. The cover body includes a base plate, and a moisture-proof layer is attached to the lower end surface of the base plate.
[0006] To avoid water accumulation on the upper end of the cover body, as an optimal choice for the sewer sewage well cover of the utility model, the cover body is in an arc shape.
[0007] To prevent rainwater from entering the cable trench, as an optimal choice for the sewer sewage well cover of the utility model, the diameter of the rain-proof cover is larger than the diameter of the blocking cylinder.
[0008] To avoid the accumulation of moisture in the cable trench, as an optimal choice for the sewer sewage well cover of the utility model, the moisture-proof layer is a laminated polyethylene foam cotton.
[0009] To improve the moisture-proof property of the cover body, as an optimal choice for the sewer sewage well cover of the utility model, a moisture-proof coating is applied to the upper end surface of the base plate.
[0010] In order to facilitate lifting the cover body and make it more labor-saving, as an optimization of the sewage drain manhole cover of the present utility model, handles are provided on both left and right sides of the upper end surface of the frame.
[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0012] The cover body is composed of a base plate and a moisture-proof layer. The base plate is formed by cement casting to ensure the basic structural strength of the base plate. The moisture-proof layer is made of polyethylene foam cotton, and multiple small bubbles are formed inside by foaming, which can effectively improve the moisture-proof effect and prevent the cover body from being corroded by moisture for a long time and reducing its service life. By providing ventilation holes, it is convenient for the sewer to communicate with the outside, so that the biogas inside the sewer can be discharged, avoiding the accumulation of biogas and ensuring safety. By providing a baffle cylinder and a rain cover, it can effectively prevent foreign objects and sundries from entering the cable trench through the ventilation holes, playing a protective role. At the same time, the rain cover can prevent rainwater from entering the cable trench, playing a rain-proof role. By providing a rotary cover, the baffle cylinder can be closed when the biogas is not discharged, so as to facilitate the control of the biogas discharge time and frequency, prevent pollution to the urban environment, and is flexible to use. Description of the Drawings
[0013] Figure 1 It is the overall top view structure diagram of the present utility model;
[0014] Figure 2 It is the installation schematic diagram of the overall top view cover body of the present utility model;
[0015] Figure 3 It is the overall front view structure diagram of the present utility model;
[0016] Figure 4 It is the side view structure diagram of the present utility model;
[0017] Figure 5 It is the internal structure cross-sectional view of the cover body of the present utility model;
[0018] In the figure: 1, frame; 2, installation bottom frame; 3, cover body; 4, ventilation hole; 5, baffle cylinder; 6, support rod; 7, rain cover; 8, base plate; 9, moisture-proof layer; 10, moisture-proof coating; 11, handle; 12, rotary cover. Detailed Implementation Modes
[0019] Please refer to Figures 1-5, the present utility model provides a technical solution: a sewer manhole cover, including a frame 1, the inner bottom end of the frame 1 is fixedly connected with an installation bottom frame 2, the upper end surface of the installation bottom frame 2 is embedded with a cover body 3, two ventilation holes 4 are penetrated through the upper end surface of the cover body 3, two retaining cylinders 5 are fixedly connected to the upper end surface of the cover body 3, the two retaining cylinders 5 are respectively located directly above the two ventilation holes 4, screw caps 12 are threadedly connected to the tops of the two retaining cylinders 5, support rods 6 are arranged on the left and right sides of the two retaining cylinders 5, the lower end surfaces of the plurality of support rods 6 are fixedly connected to the upper end surface of the cover body 3, a rain cover 7 is fixedly connected to the upper end surfaces of the two support rods 6, the cover body 3 includes a base plate 8, and a moisture-proof layer 9 is attached to the lower end surface of the base plate 8.
[0020] In this embodiment: The cover body 3 is composed of a base plate 8 and a moisture-proof layer 9. The base plate 8 is formed by cement pouring to ensure the basic structural strength of the base plate 8. The moisture-proof layer 9 is polyethylene foam cotton, and multiple small bubbles are formed by foaming inside, which can effectively improve the moisture-proof effect and avoid the cover body 3 being corroded by moisture for a long time and reducing its service life. By providing the ventilation holes 4, it is convenient for the sewer to ventilate with the outside, so that the methane inside the sewer can be discharged, avoiding the accumulation of methane and ensuring safety. By providing the retaining cylinders 5 and the rain cover 7, foreign objects and sundries are effectively prevented from entering the cable trench through the ventilation holes 4, playing a protective role. At the same time, the rain cover 7 can prevent rainwater from entering the cable trench, playing a rain-proof role. By providing the screw caps 12, the retaining cylinders 5 can be closed when methane is not discharged, so as to facilitate the control of the discharge time and frequency of methane and prevent pollution to the urban environment, with flexible use.
[0021] As a technical optimization scheme of the present utility model, the cover body 3 is arc-shaped.
[0022] In this embodiment: The cover body 3 is arc-shaped to avoid water accumulation on the upper end of the cover body 3.
[0023] As a technical optimization scheme of the present utility model, the diameter of the rain cover 7 is larger than the diameter of the retaining cylinder 5.
[0024] In this embodiment: The diameter of the rain cover 7 is larger than the diameter of the retaining cylinder 5. When it rains, the rain cover 7 prevents rainwater from entering the sewer through the retaining cylinder 5.
[0025] As a technical optimization scheme of the present utility model, the moisture-proof layer 9 is pressed polyethylene foam cotton.
[0026] In this embodiment: The moisture-proof layer 9 is polyethylene foam cotton, and multiple small bubbles are formed by foaming inside, which can effectively improve the moisture-proof effect and avoid the cover body 3 being corroded by moisture for a long time and reducing its service life.
[0027] As a technical optimization scheme of the present utility model, a moisture-proof coating 10 is coated on the upper end surface of the base plate 8.
[0028] In this embodiment: The moisture-proof coating 10 protects the cover body 3 from the top to prevent rainwater and moisture from seeping into the substrate 8.
[0029] As a technical optimization scheme of the utility model, handles 11 are arranged on both the left and right sides of the upper end surface of the frame 1.
[0030] In this embodiment: It is convenient to lift the cover body 3 through the handles 11, which is more labor-saving.
[0031] Working principle: The cover body 3 is composed of a substrate 8 and a moisture-proof layer 9. The substrate 8 is formed by cement pouring to ensure the basic structural strength of the substrate 8. The moisture-proof layer 9 is made of polyethylene foam cotton, and multiple small bubbles are formed inside by foaming, which can effectively improve the moisture-proof effect and prevent the cover body 3 from being corroded and reducing its service life due to long-term influence of moisture. By setting the ventilation holes 4, it is convenient for the sewer to ventilate with the outside world, so that the biogas inside the sewer can be discharged, avoiding the accumulation of biogas and ensuring safety. By setting the baffle cylinder 5 and the rain-proof cover 7, foreign objects and sundries can be effectively prevented from entering the cable trench through the ventilation holes 4, playing a protective role. At the same time, the rain-proof cover 7 can prevent rainwater from entering the cable trench, playing a rain-proof role. By setting the screw cap 12, the baffle cylinder 5 can be closed when the biogas is not discharged, so as to facilitate the control of the biogas discharge time and frequency, prevent the urban environment from being polluted, and is flexible to use.
[0032] The above is only a preferred embodiment of the utility model and is not intended to limit the utility model. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
Claims
1. A sewer manhole cover, comprising a frame (1), characterized in that: The bottom end of the inner wall of the frame (1) is fixedly connected to a mounting bottom frame (2), the upper end surface of the mounting bottom frame (2) is embedded with a cover body (3), the upper end surface of the cover body (3) is penetrated with two ventilation holes (4), the upper end surface of the cover body (3) is fixedly connected with two retaining cylinders (5), the two retaining cylinders (5) are respectively located directly above the two ventilation holes (4), the top ends of the two retaining cylinders (5) are both threadedly connected with a screw cap (12), the left and right sides of the two retaining cylinders (5) are provided with support rods (6), the lower end surfaces of the plurality of support rods (6) are fixedly connected to the upper end surface of the cover body (3), the upper end surfaces of the two support rods (6) are fixedly connected with a rainproof cover (7), and the cover body (3) comprises a base plate (8), the lower end surface of the base plate (8) is fitted with a moisture-proof layer (9).
2. A sewer manhole cover according to claim 1, characterized in that: The cover body (3) is in an arc shape.
3. The sewer manhole cover according to claim 1, characterized in that: The diameter of the rainproof cover (7) is greater than the diameter of the retaining cylinder (5).
4. The sewer manhole cover according to claim 1, characterized in that: The moisture-proof layer (9) is a laminated polyethylene foam.
5. The sewer manhole cover according to claim 1, characterized in that: The upper end surface of the substrate (8) is coated with moisture-proof paint (10).
6. The sewer manhole cover according to claim 1, characterized in that: Handles (11) are provided on both left and right sides of the upper end surface of the frame (1).