An adaptive leveling base structure for preventing settlement of municipal road manhole covers

Abstract

This utility model relates to the field of municipal road engineering technology, specifically disclosing a self-adjusting leveling base structure for anti-settlement manhole covers in municipal roads. It includes a manhole casing installed at the upper end of a vertical manhole. The manhole casing includes: a lower ring plate with an inner ring fixedly installed on its inner wall and inserted into the vertical manhole; an outer inclined ring fixedly installed on its outer wall; and an upper ring plate with a flap overlaid on its inner wall. The self-adjusting leveling base structure for anti-settlement manhole covers provided by this utility model uses an elastic element as a buffer when the upper ring plate is under pressure, reducing the pressure damage caused by external forces on the manhole casing and also reducing the pressure acting on the upper end of the vertical manhole, thus protecting the vertical manhole and the surrounding soil. The upper ring plate can distribute the pressure received onto the surrounding asphalt layer through the extended ring, thereby reducing the sinking of the manhole casing. The inclined ring uses its inclined surface to increase the contact area with the interior of the asphalt layer, improving the pressure dispersion ability and further increasing the resistance to sinking of the manhole casing.

Description

Technical Field

[0001] This utility model relates to municipal road engineering technology, specifically a self-adjusting leveling base structure for anti-settlement manhole covers in municipal roads. Background Technology

[0002] Urban roads are typically equipped with drainage pipes, and manhole covers are installed on the roads to seal the pipe inlets and ensure the safety of pedestrians and vehicles.

[0003] For example, the publication (announcement) number: CN210737615U, publication (announcement) date: 2020-06-12, discloses an anti-settlement manhole cover structure, including a manhole cover base with a top cover, and a shock-absorbing ring and reinforcing ribs located inside the manhole cover base.

[0004] The shortcomings of existing technology are that in some municipal road sections frequently traversed by large vehicles, manhole covers are easily damaged by being run over, and may also sink due to excessive pressure, resulting in a significant difference in elevation between the manhole cover and the surrounding road surface, thus affecting the safety of passing vehicles. Since manhole covers are installed directly on pipe shafts, the sinking of the manhole cover under pressure can also damage the upper part of the shaft, and in severe cases, cause the entire shaft to sink, easily leading to loosening of the soil below the road surface, and even large areas of the road surface sinking and subsiding, thus compromising road safety. Utility Model Content

[0005] The purpose of this invention is to provide an anti-settlement adaptive leveling base structure for municipal road manhole covers, in order to overcome the aforementioned shortcomings in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A self-adjusting leveling base structure for anti-settlement manhole covers in municipal roads includes a vertical shaft disposed in an asphalt layer, and a manhole cylinder component installed at the upper end of the vertical shaft, the manhole cylinder component comprising:

[0008] The lower ring plate has an inner ring fixedly installed on its inner wall and inserted into the vertical shaft, and an inclined ring fixedly installed on its outer wall;

[0009] The upper ring plate has a flap attached to its inner wall and an extension ring fixedly installed on its outer wall.

[0010] Multiple elastic elements are fixedly installed between the lower ring plate and the upper ring plate.

[0011] As a further description of the above technical solution: the upper ring plate is provided with a cover for storing the flip cover.

[0012] As a further description of the above technical solution: a guide rod that interlocks with the lower ring plate is fixedly installed on the extension ring.

[0013] As a further description of the above technical solution: a nut is threaded onto the end of the guide rod.

[0014] As a further description of the above technical solution: a vertical ring located outside the elastic element is fixedly installed on the lower ring plate.

[0015] As a further description of the above technical solution: the end face of the upper ring plate is provided with an insertion port for the vertical ring to slide.

[0016] As a further description of the above technical solution: it also includes a mesh plate with multiple sliders, and the inner wall of the inner ring is provided with a slot for securing the sliders.

[0017] As a further description of the above technical solution: the upper ring plate is provided with a sliding hole that slides with the slider.

[0018] As a further description of the above technical solution: the well casing is made of ferroalloy metal.

[0019] As a further description of the above technical solution: the elastic element is specifically a spring.

[0020] In the above technical solution, the adaptive leveling base structure for anti-settlement of municipal road manhole covers provided by this utility model has the following beneficial effects: The elastic element between the upper and lower ring plates acts as a buffer when the upper ring plate is under pressure, reducing the crushing damage caused by external forces to the manhole casing and also reducing the pressure acting on the upper end of the vertical shaft, thus protecting the vertical shaft and the surrounding soil. The upper ring plate can distribute the pressure received onto the surrounding asphalt layer through the extended ring, thereby reducing the sinking of the manhole casing. Furthermore, the inclined ring, which has the same function, uses its inclined surface to increase the contact area with the interior of the asphalt layer, improving the pressure dispersion ability and further increasing the resistance to sinking of the manhole casing. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0022] Figure 1 A schematic diagram of a vertical shaft equipped with well casing components located in an asphalt layer and a soil layer, provided for an embodiment of this utility model;

[0023] Figure 2 for Figure 1 Enlarged view of point A;

[0024] Figure 3This is a schematic diagram of the well casing and shaft assembly provided in the embodiments of this utility model;

[0025] Figure 4 A schematic diagram of the shaft components and the vertical shaft from an exploded upward perspective provided for embodiments of this utility model;

[0026] Figure 5 An exploded view of a well casing component provided in an embodiment of this utility model.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1. Asphalt layer; 2. Vertical shaft; 3. Shaft components; 31. Lower ring plate; 311. Inclined ring; 312. Vertical ring; 313. Inner ring; 314. Slot; 32. Upper ring plate; 321. Extension ring; 322. Cover; 323. Insert; 324. Guide rod; 325. Sliding hole; 4. Flip cover; 5. Slotted mesh plate; 51. Sliding block; 6. Elastic component. Detailed Implementation

[0029] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0030] Please see Figure 1-5 This utility model provides a technical solution: a self-adjusting leveling base structure for anti-settlement of municipal road manhole covers, including a vertical shaft 2 disposed in an asphalt layer 1, and a manhole sleeve 3 installed on the upper end of the vertical shaft 2, the manhole sleeve 3 including:

[0031] The lower ring plate 31 has an inner ring 313 fixedly installed on its inner wall and inserted into the vertical shaft 2, and an inclined ring 311 fixedly installed on its outer wall;

[0032] The upper ring plate 32 has a flap 4 overlapping its inner wall and an extension ring 321 fixedly installed on its outer wall.

[0033] Multiple elastic elements 6 are fixedly installed between the lower ring plate 31 and the upper ring plate 32.

[0034] Specifically, the lower layer of the asphalt layer 1 is a foundation composed of soil or gravel, and the shaft 2 is also buried in the foundation. The shaft 2 is generally a reinforced concrete drainage pipe. The shaft component 3 is entirely buried in the asphalt layer 1, and the upper surface of the upper ring plate 32 is flush with the surface of the asphalt layer 1.

[0035] Furthermore, both the inner ring 313 and the inclined ring 311 are integrally formed on the lower ring plate 31, and similarly, the extension ring 321 is integrally formed on the upper ring plate 32. The flip cover 4 serves as the upper port seal of the well cylinder component 3, and its surface is provided with circumferentially arranged drainage holes.

[0036] Furthermore, the installed well casing 3 maintains a predetermined distance between the inclined ring 311 and the outer wall of the vertical shaft 2, and the lower end of the inclined ring 311 with a frustum-shaped cross section and the end of the extension ring 321 are on the same vertical plane.

[0037] The well casing 3, composed of an upper ring plate 32 and a lower ring plate 31, allows the elastic element 6 between the two ring plates to act as a buffer when the upper ring plate 32 is under pressure, reducing the crushing damage caused by external forces to the well casing 3. It also reduces the pressure acting on the upper end of the shaft 2, thus protecting the shaft 2 and the surrounding soil. The upper ring plate 32 distributes the pressure it receives onto the surrounding asphalt layer 1 through the extended ring 321, thereby reducing the likelihood of the well casing 3 sinking. The inclined ring 311, which has the same function, uses its inclined surface to increase the contact area with the interior of the asphalt layer 1, improving the pressure dispersion capability and further increasing the resistance to sinking of the well casing 3, ensuring stable operation of the well casing 3.

[0038] In another embodiment of the present invention, the upper ring plate 32 is provided with a cover opening 322 for storing the flip cover 4.

[0039] Specifically, the flip cover 4 has an integrally formed protrusion at one end, which rotates in the slot opened at the cover opening 322. The protrusion has a groove at the opposite position, and the slot has a notch on the outside of the groove at the opposite position. The purpose is to make it easier to hold the groove and flip the flip cover 4 open.

[0040] The opening 322 is used to make the upper surface of the flip cover 4 after rotation and closure flush with the upper surface of the upper ring plate 32, so as to achieve stable and safe storage of the flip cover 4.

[0041] In another embodiment of the present invention, a guide rod 324 that interlocks with the lower ring plate 31 is fixedly installed on the extension ring 321.

[0042] Specifically, the lower ring plate 31 has circumferentially arranged holes, and the guide rod 324 slides in the holes.

[0043] Multiple guide rods 324 are used to guide the vertical movement of the upper ring plate 32, making it less likely for the upper ring plate 32 to tilt, thereby avoiding uneven stress on the asphalt layer 1 around the upper ring plate 32. With the addition of elastic element 6, the upper ring plate 32 has the function of self-adaptive horizontal maintenance.

[0044] In another embodiment of this utility model, a nut is threadedly connected to the end of the guide rod 324.

[0045] After the guide rod 324 passes through the lower ring plate 31, it is fixed with a nut to prevent the two ring plates from separating, and the fixed guide rod 324 still has a vertical sliding length.

[0046] In another embodiment of this utility model, a vertical ring 312 located outside the elastic member 6 is fixedly installed on the lower ring plate 31.

[0047] Specifically, the vertical ring 312 is integrally formed on the lower ring plate 31.

[0048] The vertical ring 312 can isolate the inside of the wellbore component 3, prevent the asphalt layer 1 from seeping in, and ensure the internal stability of the wellbore component 3 and the working safety of the elastic component 6.

[0049] In another embodiment of the present invention, the end face of the upper ring plate 32 is provided with an insertion port 323 for the vertical ring 312 to be inserted and slid.

[0050] Specifically, the outer wall of the vertical ring 312 and one of the inner walls of the socket 323 slide together, while the inner wall of the vertical ring 312 maintains a predetermined distance from the other inner wall of the socket 323.

[0051] The vertical ring 312 slides within the socket 323, ensuring a tight seal after the two ring plates are joined.

[0052] In another embodiment of the present invention, a mesh plate 5 is provided with a plurality of sliders 51, and a slot 314 for securing the sliders 51 is provided on the inner wall of the inner ring 313.

[0053] Specifically, the mesh plate 5 is an iron alloy metal mesh, which has a downward and stable weight.

[0054] By sliding the drain plate 5 vertically downwards onto the inner ring 313 and stopping when the slider 51 reaches the lowest position of the slot 314, a simple and stable installation of the drain plate 5 is achieved. When the flip cover 4 is opened and used for emergency drainage, the drain plate 5 can prevent large items or people from falling.

[0055] In another embodiment of this utility model, the upper ring plate 32 is provided with a sliding hole 325 that slides with the slider 51.

[0056] When the mesh strainer 5 is slidably installed, the slider 51 passes through the sliding hole 325, facilitating the installation and use of the mesh strainer 5. When dirt accumulates on the mesh strainer 5, the dirt that is difficult to clean will enter between the two ring plates, or even get stuck in the elastic element 6. However, this also makes the elastic element 6 less susceptible to compression and deformation, thus applying resistance to the downward movement of the upper ring plate 32 and further improving the ability to prevent pressure damage.

[0057] In another embodiment of this utility model, the well casing 3 is made of iron alloy metal.

[0058] By making the well casing 3 from ferroalloy metal, the well casing 3 itself can have high strength and compressive strength, thereby ensuring the normal service life of the well casing 3.

[0059] In another embodiment of this utility model, the elastic element 6 is specifically a spring.

[0060] The spring allows the elastic element 6 to have a significant cushioning effect under pressure, while also allowing some dirt to adhere, thus improving its resistance to pressure.

[0061] Working principle: The well casing 3 is composed of an upper ring plate 32 and a lower ring plate 31. The elastic element 6 between the two ring plates acts as a buffer when the upper ring plate 32 is under pressure, reducing the pressure damage caused by external forces on the well casing 3. At the same time, it can also reduce the pressure acting on the upper end of the vertical shaft 2, thus protecting the vertical shaft 2 and the surrounding soil. The upper ring plate 32 can disperse the pressure it receives onto the surrounding asphalt layer 1 through the extended ring 321, thereby reducing the sinking of the well casing 3. The inclined ring 311, which has the same function, uses its inclined surface to increase the contact area with the interior of the asphalt layer 1, thereby improving the pressure dispersion ability and further increasing the sinking resistance of the well casing 3.

[0062] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A self-adjusting leveling base structure for anti-settlement manhole covers in municipal roads, comprising a vertical shaft (2) disposed in an asphalt layer (1), characterized in that, It also includes a shaft component (3) installed at the upper end of the vertical shaft (2), the shaft component (3) comprising: The lower ring plate (31) has an inner ring (313) fixedly installed on its inner wall and inserted into the vertical shaft (2), and an inclined ring (311) fixedly installed on its outer wall. The upper ring plate (32) has a flap (4) overlapping its inner wall and an extension ring (321) fixedly installed on its outer wall. Multiple elastic elements (6) are fixedly installed between the lower ring plate (31) and the upper ring plate (32).

2. The self-adjusting leveling base structure for anti-settlement of municipal road manhole covers according to claim 1, characterized in that, The upper ring plate (32) has a cover opening (322) for storing the flip cover (4).

3. The self-adjusting leveling base structure for anti-settlement of municipal road manhole covers according to claim 1, characterized in that, The extension ring (321) is fixedly installed with a guide rod (324) that interlocks with the lower ring plate (31).

4. The self-adjusting leveling base structure for anti-settlement of municipal road manhole covers according to claim 3, characterized in that, The end of the guide rod (324) is threaded with a nut.

5. The self-adjusting leveling base structure for anti-settlement of municipal road manhole covers according to claim 1, characterized in that, A vertical ring (312) located outside the elastic member (6) is fixedly installed on the lower ring plate (31).

6. The self-adjusting leveling base structure for anti-settlement of municipal road manhole covers according to claim 5, characterized in that, The upper ring plate (32) has an insertion port (323) on its end face for the vertical ring (312) to slide.

7. The self-adjusting leveling base structure for anti-settlement of municipal road manhole covers according to claim 1, characterized in that, It also includes a mesh plate (5) with multiple sliders (51), and the inner wall of the inner ring (313) is provided with a slot (314) for securing the sliders (51).

8. The self-adjusting leveling base structure for anti-settlement of municipal road manhole covers according to claim 7, characterized in that, The upper ring plate (32) is provided with a sliding hole (325) that slides with the slider (51).

9. The self-adjusting leveling base structure for anti-settlement of municipal road manhole covers according to claim 1, characterized in that, The well casing component (3) is made of ferroalloy metal.

10. A self-adjusting leveling base structure for anti-settlement of municipal road manhole covers according to claim 1, characterized in that, The elastic element (6) is specifically a spring.

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