Anti-settling well lid

Abstract

The utility model discloses an anti-settling well lid, which relates to the technical field of well lids and comprises a well seat assembly and a well seal assembly, the well seat assembly is arranged at the top of a shaft, the well seal assembly is arranged at the top of the well seat assembly, the shaft is embedded in a geological layer, a cement layer is arranged on the periphery of the top of the shaft, and an asphalt layer is arranged on the periphery of the well seat assembly. The well seat assembly comprises an upper ring piece, a middle ring piece and a lower ring piece, bearing plates and extending ribs are arranged on the outer side walls of the upper ring piece, the middle ring piece and the lower ring piece, a supporting block and a compression spring are installed at the bottom of the lower ring piece, a supporting groove is formed in the top of the shaft, and the supporting block and the compression spring are located in the supporting groove. Load transmitted to the well seat assembly by the well lid plate can be dispersed and transmitted to the asphalt layer, fatigue damage caused by impact on the well seat assembly and the well seal assembly is reduced, the supporting blocks and the compression springs can perform buffering, the load borne by the well seat assembly and the well seal assembly is further reduced, and the anti-settling effect of the well lid is good.

Description

Technical Field

[0001] This utility model relates to the field of manhole cover technology, specifically a manhole cover designed to prevent settlement. Background Technology

[0002] Manholes are drainage facilities used on city streets, roads, and sidewalks, while manhole covers are used to cover manholes or sewer inlets in underground drainage systems. Because manhole covers are frequently run over by passing vehicles, and the cover base has a small stress area, the pressure on the adjacent road surface is high, which can cause settlement and result in noticeable depressions in the manhole cover area. Sunken manhole covers pose safety hazards to pedestrians and vehicles and also affect the aesthetics of the road surface.

[0003] To address the above issues, utility model patent CN219547873U discloses a municipal anti-settlement manhole cover. This device supports the manhole base via a support unit. When the manhole base sinks, the lower support bolts can be adjusted to bring the manhole base back to a predetermined height. However, the support unit of this device has limited supporting force, and the force of the support bolts alone cannot maintain the manhole base at the required height for a long period, resulting in only a moderate anti-settlement effect. Utility Model Content

[0004] The purpose of this invention is to provide a manhole cover that prevents settlement, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A settlement-prevention manhole cover includes a manhole base assembly and a manhole seal assembly. The manhole base assembly is located on top of a manhole casing, and the manhole seal assembly is located on top of the manhole base assembly. The manhole casing is embedded inside a geological layer. A cement layer is provided around the top of the manhole casing, and an asphalt layer is provided around the manhole base assembly. The manhole base assembly includes an upper ring, a middle ring, and a lower ring with decreasing inner diameters from top to bottom. A positioning ring is provided at the bottom of the lower ring, and the positioning ring is located inside the manhole casing and fits tightly against the inner wall of the manhole casing. Several bearing plates are provided on the outer walls of the upper, middle, and lower rings. Several extending ribs are fixedly connected to both sides of the bearing plates. The manhole seal assembly includes a manhole cover plate and several positioning blocks arranged circumferentially around it. A locking block is provided around the bottom of the manhole cover plate.

[0007] As a further embodiment of this utility model: the inner sidewalls of the upper ring, middle ring and lower ring are sequentially stepped, and the outer sidewalls are sequentially inclined inward from top to bottom.

[0008] As a further improvement of this utility model, the upper ring, middle ring, lower ring and positioning ring are integrally cast.

[0009] As a further improvement of this utility model: the top of the upper ring is provided with several positioning grooves around its perimeter, and the top wall of the lower ring is provided with a locking groove.

[0010] As a further improvement of this utility model: the positioning block matches the positioning groove on the top of the upper ring, and the engaging block matches the engaging groove on the top wall of the lower ring.

[0011] As a further improvement of this utility model: several support blocks are circumferentially installed at the bottom of the lower ring of the well base assembly, and compression springs are fixedly connected to the bottom of the support blocks.

[0012] As a further improvement of this utility model: a number of support grooves are provided circumferentially at the top of the well shaft, and the support block and compression spring are located inside the support grooves.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. By inserting the bearing plate and extension ribs of the manhole cover assembly into the asphalt layer, making it part of the asphalt layer, the tightness of the connection between the manhole cover assembly and the asphalt layer is increased. This allows the load transferred from the manhole cover plate to the manhole cover assembly to be directly distributed to the asphalt layer through the bearing plate and extension ribs, reducing fatigue damage to the manhole cover assembly and manhole seal assembly caused by impact, protecting the asphalt pavement on the surface of the asphalt layer around the manhole cover plate, and improving the anti-settlement effect of the manhole cover.

[0015] 2. The manhole cover assembly is supported by support blocks and compression springs. When a vehicle drives over the road, the compression springs are squeezed to buffer the load, further reducing the load on the manhole cover assembly and the manhole seal assembly, and improving the anti-settlement effect of the manhole cover. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this utility model.

[0017] Figure 2 This is a schematic diagram of the overall structure of the well base assembly in Embodiment 1 of this utility model.

[0018] Figure 3 This is a cross-sectional structural diagram of the well base assembly and well casing in Embodiment 1 of this utility model.

[0019] Figure 4 This is a schematic diagram of the overall structure of the well sealing assembly in Embodiment 1 of this utility model.

[0020] Figure 5 This is a schematic diagram of the overall structure of Embodiment 2 of this utility model.

[0021] Figure 6 This is a schematic diagram of the overall structure of the well base assembly, well seal assembly, and well casing in Embodiment 2 of this utility model.

[0022] Figure 7This is a cross-sectional structural diagram of the well seat assembly, well seal assembly, and well casing in Embodiment 2 of this utility model.

[0023] In the diagram: 1. Well base assembly; 11. Upper ring component; 12. Middle ring component; 13. Lower ring component; 14. Positioning ring; 15. Positioning groove; 16. Engaging groove; 17. Bearing plate; 18. Extension rib; 2. Well seal assembly; 21. Well cover plate; 22. Positioning block; 23. Engaging block; 3. Well shaft; 4. Geological layer; 5. Cement layer; 6. Asphalt layer; 7. Support block; 8. Compression spring; 9. Support groove. Detailed Implementation

[0024] The following embodiments will be described in detail with reference to the accompanying drawings. In the drawings and description, similar or identical parts are referred to by the same reference numerals. Furthermore, in practical applications, the shape, thickness, or height of each component may be enlarged or reduced. The embodiments listed in this utility model are merely illustrative and not intended to limit the scope of the utility model. Any obvious modifications or alterations made to this utility model do not depart from its spirit and scope.

[0025] Example 1

[0026] Please see Figures 1-4 In this embodiment of the present invention, a manhole cover for preventing settlement includes a manhole base assembly 1 and a manhole seal assembly 2. The manhole base assembly 1 is disposed on top of a manhole casing 3, and the manhole seal assembly 2 is disposed on top of the manhole base assembly 1. The manhole casing 3 is embedded inside a geological layer 4, and a cement layer 5 is provided around the top of the manhole casing 3. An asphalt layer 6 is provided around the manhole base assembly 1.

[0027] The well base assembly 1 includes an upper ring 11, a middle ring 12, and a lower ring 13, with their inner diameters decreasing sequentially from top to bottom. The inner sidewalls of the upper ring 11, middle ring 12, and lower ring 13 are sequentially stepped, and their outer sidewalls are sequentially inclined inward from top to bottom. The bottom of the lower ring 13 is provided with a positioning ring 14, which is located inside the well barrel 3 and fits tightly against the inner wall of the well barrel 3. The upper ring 11, middle ring 12, lower ring 13, and positioning ring 14 are integrally cast. The top of the upper ring 11 is provided with several positioning grooves 15 circumferentially, and the top wall of the lower ring 13 is provided with a locking groove 16. Several bearing plates 17 are provided extending outward from the outer sidewalls of the upper ring 11, middle ring 12, and lower ring 13, and multiple extending ribs 18 are fixedly connected to both sides of the bearing plates 17.

[0028] The well sealing assembly 2 includes a well cover plate 21 and a plurality of positioning blocks 22 arranged circumferentially around it. The positioning blocks 22 match the positioning grooves 15 on the top of the upper ring 11. The well cover plate 21 has locking blocks 23 around its bottom, which match the locking grooves 16 on the top wall of the lower ring 13. The well cover plate 21 can be locked onto the top of the well seat assembly 1 by means of the positioning blocks 22 and the locking blocks 23.

[0029] In a specific implementation of this utility model, a cement layer 5 is first poured on the outer side of the well shaft 3 along the geological layer 4, so that the top surface of the cement layer 5 is flush with the top end face of the well shaft 3. Then, the well seat assembly 1 is placed on top of the well shaft 3 using the positioning ring 14. After placement, an asphalt layer 6 is poured on the outer side of the well seat assembly 1, so that the asphalt layer 6 covers the well seat assembly 1. After the asphalt layer 6 is compacted and cooled, it is flush with the top surface of the well seat assembly 1. At this time, the bearing plate 17 and the extension ribs 18 of the well seat assembly 1 are inserted into the asphalt layer 6, making it into asphalt. As part of layer 6, the tightness of the connection between the upper ring 11, the middle ring 12 and the lower ring 13 and the asphalt layer 6 is increased. Finally, the well seal assembly 2 is installed on top of the well seat assembly 1, so that the load transmitted from the well cover plate 21 to the well seat assembly 1 can be directly distributed to the asphalt layer 6 through the bearing plate 17 and the extension ribs 18, reducing the fatigue damage caused by impact to the well seat assembly 1 and the well seal assembly 2, protecting the asphalt pavement on the surface of the asphalt layer 6 around the well cover plate 21, and improving the anti-settlement effect of the well cover.

[0030] Example 2

[0031] Please see Figures 5-7 Based on Embodiment 1, the bottom of the lower ring 13 of the manhole cover assembly 1 is circumferentially equipped with several support blocks 7, and a compression spring 8 is fixedly connected to the bottom of the support blocks 7. The top of the manhole cylinder 3 is circumferentially provided with several support grooves 9, and the support blocks 7 and compression springs 8 are located inside the support grooves 9. By supporting the manhole cover assembly 1 with the support blocks 7 and compression springs 8, the compression springs 8 can be squeezed to buffer when a vehicle drives over the road surface, further reducing the load borne by the manhole cover assembly 1 and the manhole seal assembly 2, and improving the anti-settlement effect of the manhole cover.

[0032] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims in the field of manhole cover technology.

[0033] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A manhole cover for preventing settlement, comprising a manhole base assembly (1) and a manhole seal assembly (2), characterized in that, The well seat assembly (1) is located on top of the well casing (3), the well sealing assembly (2) is located on top of the well seat assembly (1), the well casing (3) is embedded in the geological layer (4), a cement layer (5) is provided on the outer periphery of the top of the well casing (3), an asphalt layer (6) is provided on the outer periphery of the well seat assembly (1), the well seat assembly (1) includes an upper ring (11), a middle ring (12) and a lower ring (13) with the inner diameter decreasing sequentially from top to bottom, and a positioning ring (13) is provided at the bottom of the lower ring (13). 14), and the positioning ring (14) is located inside the well barrel (3) and fits tightly against the inner wall of the well barrel (3). The outer walls of the upper ring (11), middle ring (12) and lower ring (13) are provided with several bearing plates (17) extending outward. Several extending ribs (18) are fixedly connected to both sides of the bearing plate (17). The well sealing assembly (2) includes a well cover plate (21) and several positioning blocks (22) arranged around it. The bottom of the well cover plate (21) is provided with locking blocks (23).

2. The anti-settlement manhole cover according to claim 1, characterized in that, The inner walls of the upper ring (11), middle ring (12) and lower ring (13) are sequentially stepped, and the outer walls are inclined inward from top to bottom.

3. The anti-settlement manhole cover according to claim 1, characterized in that, The upper ring (11), middle ring (12), lower ring (13) and positioning ring (14) are integrally cast.

4. The anti-settlement manhole cover according to claim 2, characterized in that, The upper ring (11) has several positioning grooves (15) circumferentially arranged around its top, and the lower ring (13) has a locking groove (16) on its top wall.

5. The anti-settlement manhole cover according to claim 4, characterized in that, The positioning block (22) matches the positioning groove (15) on the top of the upper ring (11), and the engaging block (23) matches the engaging groove (16) on the top wall of the lower ring (13).

6. The anti-settlement manhole cover according to claim 5, characterized in that, The bottom of the lower ring (13) of the well base assembly (1) is circumferentially equipped with several support blocks (7), and the bottom of the support blocks (7) is fixedly connected with compression springs (8).

7. The anti-settlement manhole cover according to claim 6, characterized in that, The top of the wellbore (3) is provided with several support grooves (9) in a circumferential direction, and the support block (7) and compression spring (8) are located inside the support grooves (9).

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