Well lid combined by composite well lid and cast iron jacket

Abstract

The utility model discloses a well lid combined by a composite well lid and a cast iron jacket. The reverse side of the composite well seat is embedded with a quick-taking screw sheet, then the quick-taking screw sheet is placed into the cast iron jacket, a bolt A is inserted into a connecting bolt A hole, a composite anti-falling frame is placed into the cast iron jacket, a bolt B is inserted into a bolt B hole, the upper end of an inner opening of the composite well seat is bonded with a dust-proof rubber ring and then placed into the composite well cover, and a gap between the cast iron jacket and the composite well seat is filled with a gap circulation sealing material. The colored pattern material is embedded into the upper plane of the composite well lid, the waterproof glue piston is embedded into a double-opening lid hole in the upper face of the composite well lid, and the composite well seat quick-taking screw rod is screwed into the composite well seat quick-taking screw piece till the quick-taking screw rod makes contact with the upper plane of the cast iron outer sleeve. The combined well lid has no abnormal sound, does not disturb residents, is attractive, can be quickly taken out of the whole combined well lid, can also be quickly embedded into the whole combined well lid, can quickly replace an invalid well lid, and is resistant to abnormal sound, dust, slag and water.

Description

Technical Field

[0001] This utility model belongs to the field of manhole cover technology, specifically relating to a manhole cover that combines a composite manhole cover with a cast iron outer casing. Background Technology

[0002] Cast iron manhole covers can cause noise, disturb residents, and are unsightly with prolonged use. They are not theft-proof and are difficult to open later. Composite manhole covers have disadvantages such as not preventing displacement or settlement, making it difficult to open for maintenance. Composite manhole covers may shift during road roller construction, reducing their lifespan. After a period of use, dust and debris can accumulate in the gaps between the composite manhole cover and the frame, making it difficult to open and maintain. Power and communication manholes are generally susceptible to flooding, and both cast iron and composite manhole covers will leak. This results in the need to use a pump to remove the water from the well for subsequent maintenance, causing great inconvenience. Considering the above disadvantages, to avoid the drawbacks of the two types of well covers, it is necessary to combine the two types of well covers into one. However, it is not possible to embed a complete set of standard-sized composite well covers into a cast iron outer cover. For example, if an 80cm round composite well base is embedded into an 80cm round cast iron outer cover, the awkward situation will occur where the cast iron outer cover is either 5mm too large or 5mm too small. This is because the cast iron outer cover will have a size error of 5mm after production, which causes the composite well base to be unable to be embedded into the cast iron outer cover. Summary of the Invention

[0003] The purpose of this utility model is to overcome the above-mentioned shortcomings and provide a composite well cover that is noiseless, does not disturb residents, is aesthetically pleasing, can be quickly removed and quickly inserted into the whole set of composite well covers, can quickly replace damaged well covers, and is noise-proof, dustproof, and waterproof. It is a combination of a composite well cover and a cast iron outer casing.

[0004] This utility model discloses a composite manhole cover combined with a cast iron outer casing, comprising a cast iron outer casing, a composite manhole base, a composite manhole cover, an anti-sludge rubber ring, a waterproof rubber plug, a connecting bolt A, a quick-release screw on the composite manhole base, a gap-flow sealing material, a colored pattern, a composite fall arrestor, a connecting bolt B, and a composite manhole base quick-release screw. Its features include: a composite manhole base quick-release screw embedded below the composite manhole base; the composite manhole base being disposed within the cast iron outer casing and connected to the connecting bolt A hole on the cast iron outer casing via the connecting bolt A; a composite fall arrestor being disposed within the cast iron outer casing and connected to the connecting bolt B hole on the cast iron outer casing via the connecting bolt B; an anti-sludge rubber ring adhered to the inner opening of the composite manhole base, and the composite manhole cover being disposed within the anti-sludge rubber ring; a gap-flow sealing material filling the gap between the cast iron outer casing and the composite manhole base; and a colored pattern embedded on the composite manhole cover.

[0005] The composite well base is provided with quick-access holes for engaging with the quick-access screw of the composite well base.

[0006] The waterproof plug is embedded in the double-opening hole on the composite manhole cover.

[0007] Compared with the prior art, this utility model has significant advantages. As can be seen from the above technical solution: a quick-release screw is embedded under the composite well base; the composite well base is then placed inside the cast iron outer sleeve, and connecting bolt A is inserted and screwed into the connecting bolt A hole. A composite fall arrestor is placed inside the cast iron outer sleeve, and connecting bolt B is inserted and screwed into the connecting bolt B hole. An anti-sludge rubber ring is bonded to the inner opening of the composite well base, and a composite well cover is placed inside the anti-sludge rubber ring. Colored patterned material is embedded in the upper surface of the composite well cover, and a waterproof plug is embedded in the double-opening hole on the top of the composite well cover. The gap between the cast iron outer sleeve and the composite well base is filled with a gap-flow sealing material. The composite well cover is then opened, and a quick-release screw is inserted and screwed into the quick-release hole of the composite well base until it contacts the upper surface of the inner side of the cast iron outer sleeve. Enlarge the cast iron outer casing size and place the standard-sized composite manhole cover set inside. Any gaps larger than the standard size can be filled with a gap-sealing material to solve the problem of the cast iron outer casing not fitting snugly with the composite manhole cover. After assembly, the composite manhole cover will not produce any abnormal noise because the material itself does not emit any. Insert the quick-release screw into the quick-release hole on the composite manhole cover and screw in the quick-release plate. Hold the quick-release screw against the upper inner surface of the cast iron outer casing and screw clockwise until the composite manhole cover loosens and separates from the cast iron outer casing. This solves the problem of quick removal and installation of the entire composite manhole cover set. After the composite manhole cover reaches its service life, only the entire set needs to be replaced. The cast iron outer casing can be used for a long time and can be easily removed and replaced without digging large holes in the road surface, which is time-consuming and destructive. To address the inconvenience caused by disruptions to public transportation, a colorful pattern is created by filling pre-drilled grooves in the composite manhole cover with a mixture of epoxy resin A, epoxy resin B, carbon fiber, and iron oxide pigment, resulting in an aesthetically pleasing design. An anti-sludge ring is adhered to the inner opening of the composite manhole cover, and the cover is placed inside, preventing dust and water penetration and achieving dust and water resistance. The gap sealing material is composed of epoxy resin A, epoxy resin B, carbon fiber, quartz sand, and talc powder; by weight: 26 parts epoxy resin A, 26 parts epoxy resin B, 10 parts carbon fiber, 28 parts quartz sand, and 10 parts talc powder, mixed thoroughly. The colorful pattern is composed of epoxy resin A, epoxy resin B, carbon fiber, and iron oxide pigment; by weight: 35 parts epoxy resin A, 35 parts epoxy resin B, 20 parts carbon fiber, and 10 parts iron oxide pigment, mixed thoroughly. In summary, this utility model is noiseless, does not disturb residents, is aesthetically pleasing, and allows for quick removal and installation of the entire composite manhole cover. Expired manhole covers can be quickly replaced, and it is noise-proof, dustproof, and waterproof. Attached Figure Description

[0008] Figure 1This is a schematic diagram of the structure of this utility model;

[0009] Figure 2 This is a bottom view of the present invention;

[0010] Figure 3 yes Figure 1 Schematic diagram of the structure without the composite manhole cover;

[0011] Figure 4 This is an exploded view of this utility model;

[0012] Figure 5 This is a structural schematic diagram of the cast iron outer casing, composite well seat, anti-sludge rubber ring, connecting bolt A, and gap flow sealing material of this utility model;

[0013] Figure 6 This is a schematic diagram of the structure of the cast iron outer casing, connecting bolt A, and composite well seat bolt of this utility model;

[0014] Figure 7 This is a structural schematic diagram of the composite well cover, waterproof rubber plug, and colored pattern of this utility model;

[0015] Figure 8 This is a schematic diagram of the composite well seat of this utility model;

[0016] Figure 9 This is a schematic diagram of the structure of the cast iron jacket of this utility model;

[0017] Figure 10 This is a schematic diagram of the installation of the cast iron jacket of this utility model;

[0018] Figure 11 This is a diagram showing the replacement status of the composite manhole cover of this utility model.

[0019] Markings in the diagram;

[0020] 1. Cast iron outer casing; 2. Composite well base; 3. Composite well cover; 4. Anti-sludge rubber ring; 5. Waterproof rubber plug; 6. Connecting bolt A; 7. Composite well base threaded plate; 8. Gap flow sealing material; 9. Colored pattern; 10. Composite fall arrestor; 11. Connecting bolt B; 12. Composite well base quick-release screw; 13. Connecting bolt A hole; 14. Connecting bolt B hole; 15. Cement grout; 16. Foundation. Detailed Implementation

[0021] The following detailed description, in conjunction with the accompanying drawings and preferred embodiments, describes the specific implementation methods, structure, features, and effects of this utility model.

[0022] This utility model discloses a composite manhole cover combined with a cast iron outer casing, comprising a cast iron outer casing 1, a composite manhole base 2, a composite manhole cover 3, an anti-sludge rubber ring 4, a waterproof rubber plug 5, a connecting bolt A6, a composite manhole base quick-release screw 7, a gap flow sealing material 8, a colored pattern 9, a composite fall arrestor 10, a connecting bolt B11, and a composite manhole base quick-release screw 12. Its features include: a composite manhole base quick-release screw 7 embedded below the composite manhole base 2; the composite manhole base 2 being disposed within the cast iron outer casing 1 and connected to the connecting bolt A hole 13 on the cast iron outer casing 1 via the connecting bolt A6; a composite fall arrestor 10 disposed within the cast iron outer casing 1 and connected to the connecting bolt B hole 14 on the cast iron outer casing 1 via the connecting bolt B11; an anti-sludge rubber ring 4 adhered to the inner opening of the composite manhole base 2, and the composite manhole cover 3 disposed within the anti-sludge rubber ring 4; a gap flow sealing material 8 filling the gap between the cast iron outer casing 1 and the composite manhole base 2; and a colored pattern 9 embedded on the composite manhole cover 3.

[0023] During manufacturing, the standard size is used as a basis, and then the inner diameter of the cast iron outer sleeve 1 is enlarged to 18-22mm. The cast iron outer sleeve 1 is made, and the composite well base 2, composite well cover 3, anti-sludge rubber ring 4, and composite anti-fall frame 10 are made according to the standard size. When making the composite well cover 3, a pattern groove is reserved on the composite well cover 3. The pattern groove is filled with a mixed material that is mixed evenly to form a colored pattern 9.

[0024] Assembly: Insert the quick-release screw 7 into the composite well base 2, place it inside the cast iron outer sleeve 1, insert the connecting bolt A6 and screw it into the connecting bolt A hole 13. Place the composite fall arrestor 10 inside the cast iron outer sleeve 1, insert the connecting bolt B11 and screw it into the connecting bolt B hole 14. Adhere the anti-sludge rubber ring 4 to the inner opening of the composite well base 2. Place the anti-sludge rubber ring 4 into the composite well cover 3. Fill the gap between the cast iron outer sleeve 1 and the composite well base 2 with gap-flow sealing material 8. Assembly is complete. On-site installation: Assemble the well cover by combining the composite well cover and the cast iron outer sleeve within the prepared foundation 16, then pour cement grout 15.

[0025] Removal of Composite Manhole Covers and Bases When They Fail: After the composite manhole cover 3 and composite manhole base 2 have reached the end of their service life, they need to be removed and replaced. First, remove the composite manhole cover 3, then insert the quick-release screw 12 into the quick-release hole provided on the composite manhole base 2 and screw in the quick-release plate 7. The quick-release screw 12 abuts against the upper surface of the inner side of the cast iron outer sleeve. Tighten the quick-release screw 12 clockwise until the quick-release plate 7 moves upward. The quick-release plate 7 drives the composite manhole base 2 to move upward until the composite manhole base 2 loosens and separates from the cast iron outer sleeve 1. Then, the composite manhole base 2 can be removed.

[0026] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A manhole cover consisting of a composite manhole cover and a cast iron outer casing, comprising a cast iron outer casing (1), a composite manhole base (2), a composite manhole cover (3), an anti-sludge rubber ring (4), a waterproof rubber plug (5), a connecting bolt A (6), a quick-release screw for the composite manhole base (7), a gap flow sealing material (8), a colored pattern (9), a composite anti-fall frame (10), a connecting bolt B (11), and a quick-release screw for the composite manhole base (12), characterized in that: The composite well seat (2) has a quick-access screw plate (7) embedded below it. The composite well base (2) is set inside the cast iron outer sleeve (1) and is connected to the connecting bolt A hole (13) on the cast iron outer sleeve (1) by connecting bolt A (6); The cast iron jacket (1) is provided with a composite fall arrestor (10), and is connected to the connecting bolt B hole (14) on the cast iron jacket (1) by connecting bolt B (11); The composite well base (2) has an anti-sludge rubber ring (4) bonded to its inner opening, and the composite well cover (3) is set inside the anti-sludge rubber ring (4); The gap between the cast iron outer casing (1) and the composite well seat (2) is filled with a gap flow sealing material (8). The composite manhole cover (3) is embedded with colored patterns (9); The composite well base (2) is provided with a quick-access hole for cooperating with the quick-access screw (12) of the composite well base.

2. The manhole cover as described in claim 1, consisting of a composite manhole cover and a cast iron outer casing, characterized in that: The waterproof plug (5) is embedded in the double-opening hole on the composite well cover (3).

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