Cast iron manhole cover with buffer protection device

Abstract

This utility model relates to the field of cast iron manhole cover technology, specifically a cast iron manhole cover with a buffer protection device. It includes a bearing ring, a mounting component, a manhole cover component, a cover, and a sliding opening. The mounting component includes a base, with a limiting ring on its upper side. A sliding rod is located inside the limiting ring, and an adjusting ring is located on the upper side of the sliding rod. A spring is located on the outer side of the sliding rod at a position corresponding to the limiting ring and the adjusting ring. The manhole cover component includes a rubber ring, with a cast iron cover on its upper side. An insert rod is located on the upper side of the adjusting ring, with a limiting block at its upper end. This utility model improves the buffering effect of the cast iron manhole cover by using the sliding rod and spring to buffer the adjusting ring. The rubber ring and limiting ring seal the connection and support the cast iron cover, improving the stability of the buffer. The adjusting ring facilitates the disassembly and assembly of the mounting component, enhancing maintenance convenience.

Description

Technical Field

[0001] This utility model relates to the field of cast iron manhole cover technology, specifically a cast iron manhole cover with a buffer protection device. Background Technology

[0002] Cast iron manhole covers are a type of manhole cover. Cast iron manhole covers are divided into ductile iron manhole covers and gray cast iron manhole covers. Generally speaking, ductile iron manhole covers of the same weight have stronger pressure resistance than gray iron manhole covers.

[0003] Chinese patent (publication number CN215715899U) discloses a ductile iron manhole cover with a cushioning and shock absorption function. This patented technology uses a pivot to rotate the handle until the horizontal plate abuts against the limiting plate. Workers can then easily open the manhole cover by gripping the handle. When the manhole cover is run over by a vehicle or a heavy object passes over it, the cushioning device protects the manhole cover body and base. However, the aforementioned cast iron manhole cover uses a cushioning ball for cushioning, but the cushioning ball has poor resilience, which is detrimental to the cushioning effect of the cast iron manhole cover. Furthermore, the cushioning ball is prone to deformation, which is detrimental to the stability of the cushioning. The installation and disassembly of the manhole cover are inconvenient, hindering maintenance. Therefore, those skilled in the art have provided a cast iron manhole cover with a cushioning and protection device to solve the problems mentioned in the background art. Utility Model Content

[0004] The purpose of this invention is to provide a cast iron manhole cover with a buffer protection device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A cast iron manhole cover with a buffer protection device includes a bearing ring, a mounting component, a manhole cover component, a cover, and a sliding opening. The mounting component is located above the bearing ring, the manhole cover component is located above the mounting component, the cover is located above the bearing ring, and the sliding opening is located above the cover. The mounting component includes a base, a limit ring is provided on the upper side of the base, a sliding rod is provided inside the limit ring, an adjusting ring is provided on the upper side of the sliding rod, and a spring is provided on the outer side of the sliding rod at the corresponding side of the limit ring and the adjusting ring. The manhole cover component includes a rubber ring, and a cast iron cover is provided on the upper side of the rubber ring.

[0006] As a further embodiment of this utility model: an insertion rod is provided on the upper side of the adjusting ring, a limit block is provided at the upper end of the insertion rod, a groove is provided on the upper side of the cast iron cover, a rotating ring is provided inside the groove, an octagonal nut is provided on the upper side of the rotating ring, an insertion hole is provided on the upper side of the rotating ring, and a limit groove is provided on the upper side of the rotating ring near the insertion hole.

[0007] As a further embodiment of this utility model: the lower end of the slide rod slides at the inner position of the limiting ring, and the adjusting ring slides at the upper position of the limiting ring via the slide rod.

[0008] As a further improvement of this utility model: the lower side of the cast iron cover is located above the adjusting ring, and the lower end of the rubber ring is located above the limiting ring.

[0009] As a further embodiment of this utility model: the position of the insertion rod corresponds to the position of the insertion hole, the insertion rod slides inside the insertion hole, the limiting block slides inside the limiting groove, and the rotating ring rotates inside the groove.

[0010] Compared with the prior art, the beneficial effects of this utility model are: This utility model features a cast iron manhole cover with a buffer protection device. The adjusting ring is buffered by a sliding rod and a spring, which improves the buffering effect of the cast iron manhole cover. The connection is sealed by a rubber ring and a limiting ring, which also supports the cast iron cover and improves the stability of the buffer. Using the adjusting ring to disassemble and assemble the components facilitates maintenance. Attached Figure Description

[0011] Figure 1 A schematic diagram of a cast iron manhole cover with a buffer protection device; Figure 2 A schematic diagram of the structure for installing components in a cast iron manhole cover with a buffer protection device; Figure 3 A schematic diagram of the structure of a cast iron manhole cover component with a buffer protection device; Figure 4 for Figure 2 A schematic diagram of the structure of part A; Figure 5 for Figure 3 A schematic diagram of the structure of part B.

[0012] In the diagram: 1. Bearing ring; 2. Mounting component; 3. Manhole cover component; 4. Cover; 5. Sliding port; 6. Seat; 7. Limiting ring; 8. Sliding rod; 9. Adjusting ring; 10. Spring; 11. Rubber ring; 12. Cast iron cover; 13. Insert rod; 14. Limiting block; 15. Groove; 16. Rotary ring; 17. Octagonal nut; 18. Insertion hole; 19. Limiting groove. Detailed Implementation

[0013] Please see Figures 1-5In this embodiment of the present invention, a cast iron manhole cover with a buffer protection device includes a bearing ring 1, a mounting component 2, a manhole cover component 3, a cover 4, and a sliding opening 5. The mounting component 2 is located above the bearing ring 1, the manhole cover component 3 is located above the mounting component 2, the cover 4 is located above the bearing ring 1, and the sliding opening 5 is located above the cover 4. The mounting component 2 includes a seat 6, with a limit ring 7 on the upper side of the seat 6. A sliding rod 8 is provided inside the limit ring 7, and an adjusting ring 9 is provided on the upper side of the sliding rod 8. A spring 10 is provided on the outer side of the sliding rod 8 at the corresponding positions of the limit ring 7 and the adjusting ring 9. The manhole cover component 3 includes a rubber ring 11, with a cast iron cover 12 on the upper side of the rubber ring 11. The lower end of rod 8 slides inside the limiting ring 7, and the adjusting ring 9 slides above the limiting ring 7 via the sliding rod 8. The lower side of the cast iron cover 12 is located above the adjusting ring 9, and the lower end of the rubber ring 11 is located above the limiting ring 7. First, the bearing ring 1 is fixed to the mounting position, and the cover 4 is embedded in the mounting surface. Then, the rubber ring 11 and the cast iron cover 12 slide into the inside of the cover 4 through the sliding port 5. The cast iron cover 12 presses against the upper side of the adjusting ring 9, and the lower end of the rubber ring 11 is locked against the upper side of the limiting ring 7, thus completing the fixing of the cast iron cover 12. Finally, it is put into use. The cast iron cover 12 is compressed by the spring 10, the lower end of the sliding rod 8 slides inside the limiting ring 7, and the adjusting ring 9 moves to buffer and protect the cast iron cover 12.

[0014] exist Figure 2 , 3 In sections 4 and 5: An insert rod 13 is provided on the upper side of the adjusting ring 9, and a limit block 14 is provided at the upper end of the insert rod 13. A groove 15 is provided on the upper side of the cast iron cover 12, and a rotating ring 16 is provided inside the groove 15. An octagonal nut 17 is provided on the upper side of the rotating ring 16, and an insertion hole 18 is provided on the upper side of the rotating ring 16. A limit groove 19 is provided on the upper side of the rotating ring 16 near the insertion hole 18. The insert rod 13 corresponds to the position of the insertion hole 18, and the insert rod 13 slides within the insertion hole 18. At the location, the limiting block 14 slides inside the limiting groove 19, the rotating ring 16 rotates inside the groove 15, the rubber ring 11 and the cast iron cover 12 slide into the inside of the cover 4 through the sliding port 5, the insertion rod 13 slides into the inside of the insertion hole 18, the limiting block 14 slides into the inside of the limiting groove 19, the lower end of the rubber ring 11 is locked onto the upper side of the limiting ring 7, the tool is locked onto the outside of the octagonal nut 17 and the rotating ring 16 is rotated, the limiting groove 19 and the limiting block 14 are misaligned, and the cast iron cover 12 is fixed.

[0015] The working principle of this utility model is as follows: First, the bearing ring 1 is fixed to the mounting position, and the cover 4 is embedded in the mounting surface. Then, the rubber ring 11 and the cast iron cover 12 slide into the inside of the cover 4 through the sliding hole 5. The insertion rod 13 slides into the inside of the insertion hole 18, and the limiting block 14 slides into the inside of the limiting groove 19. The lower end of the rubber ring 11 is locked onto the upper side of the limiting ring 7, and the tool is locked onto the outside of the octagonal nut 17. The rotating ring 16 is rotated, and the limiting groove 19 and the limiting block 14 are misaligned, thus completing the fixing of the cast iron cover 12. Finally, when it is put into use, the cast iron cover 12 is compressed by the spring 10, the lower end of the sliding rod 8 slides inside the limiting ring 7, and the adjusting ring 9 moves to buffer and protect the cast iron cover 12.

[0016] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A cast iron manhole cover with a buffer protection device, comprising a bearing ring (1), a mounting member (2), a manhole cover member (3), a cover (4) and a slide opening (5), said mounting member (2) being located at the upper side of the bearing ring (1), said manhole cover member (3) being located at the upper side of the mounting member (2), said cover (4) being located at the upper side of the bearing ring (1), said slide opening (5) being located at the upper side of the cover (4), characterized in that, The mounting component (2) includes a base (6), a limiting ring (7) is provided on the upper side of the base (6), a slide rod (8) is provided inside the limiting ring (7), an adjusting ring (9) is provided on the upper side of the slide rod (8), and a spring (10) is provided on the outer side of the slide rod (8) at the corresponding side position of the limiting ring (7) and the adjusting ring (9). The manhole cover component (3) includes a rubber ring (11), and a cast iron cover (12) is provided on the upper side of the rubber ring (11).

2. The cast iron cover with a buffer protection device according to claim 1, characterized in that, The upper side of the adjusting ring (9) is provided with a plug rod (13), the upper end of the plug rod (13) is provided with a limit block (14), the upper side of the cast iron cover (12) is provided with a groove (15), the inside of the groove (15) is provided with a rotating ring (16), the upper side of the rotating ring (16) is provided with an octagonal nut (17), the upper side of the rotating ring (16) is provided with a socket (18), and the upper side of the rotating ring (16) is provided with a limit groove (19) near the socket (18).

3. The cast iron cover with a buffer protection device according to claim 1, characterized in that, The lower end of the slide rod (8) slides inside the limiting ring (7), and the adjusting ring (9) slides on the upper side of the limiting ring (7) via the slide rod (8).

4. The cast iron cover with a buffer protection device according to claim 1, characterized in that, The lower side of the cast iron cover (12) is located above the adjusting ring (9), and the lower end of the rubber ring (11) is located above the limiting ring (7).

5. The cast iron cover with a buffer protection device according to claim 2, characterized in that, The position of the insertion rod (13) corresponds to that of the insertion hole (18). The insertion rod (13) slides inside the insertion hole (18). The limiting block (14) slides inside the limiting groove (19). The rotating ring (16) rotates inside the groove (15).

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