Invisible well lid structure

Abstract

The utility model discloses a kind of invisible well lid structure;Including well lid, well ring and tray, the well ring and well lid are arranged on well wall, the well ring inside has the through-hole of upper wide and lower narrow, the well lid is located in lower layer through-hole, the tray is located in upper layer through-hole, buffer filling layer and supporting assembly are equipped between the tray and the well lid, the supporting assembly is connected at the bottom of the tray, the tray is equipped with with road surface flush surface layer.The utility model tray is set on well ring, tray is set on well ring, buffer filling layer is filled between tray and well lid, buffer filling layer can resist tray under vertical force and bend deformation, improve the strength and carrying capacity of well lid structure, also can play the role of buffer, avoid when vehicle passing, tray shake, and can reduce noise to some extent.

Description

Technical Field

[0001] This utility model relates to the field of manhole cover technology, and in particular to an invisible manhole cover structure. Background Technology

[0002] Urban construction involves numerous underground pipelines, such as sewers, underground gas pipelines, water supply pipelines, power pipelines, communication pipelines, and defense pipelines. These pipelines require an exit to the surface at regular intervals, and these exits must be covered with manhole covers to prevent people or objects from falling in. However, existing manhole covers suffer from low strength and insufficient load-bearing capacity. Furthermore, when vehicles pass over them, the covers may move and make noise, posing a safety hazard. Utility Model Content

[0003] To address the aforementioned problems, this utility model provides an invisible manhole cover structure, comprising a manhole cover, a manhole ring, and a tray. The manhole ring and the manhole cover are mounted on the manhole wall. The inner side of the manhole ring has a through hole that is wider at the top and narrower at the bottom. The manhole cover is located in the lower through hole, and the tray is located in the upper through hole. A buffer filling layer and a support assembly are provided between the tray and the manhole cover. The support assembly is connected to the bottom of the tray, and the tray has a surface layer flush with the road surface.

[0004] Furthermore, the buffer filling layer includes a rubber ring disposed around the edge of the manhole cover and a sand pad layer disposed within the rubber ring.

[0005] Furthermore, the support assembly includes several spaced-apart transverse ribs and several spaced-apart longitudinal ribs, with the transverse ribs and longitudinal ribs arranged in a crisscross pattern.

[0006] Furthermore, each of the transverse reinforcing plates and each of the longitudinal reinforcing plates are welded to the bottom of the tray.

[0007] Furthermore, all of the transverse reinforcing plates and all of the longitudinal reinforcing plates are made of stainless steel.

[0008] Furthermore, the height of the buffer filling layer is 20–35 mm.

[0009] Furthermore, it also includes an embedded part, which is disposed on the upper through hole of the well ring, and the tray is placed on the embedded part.

[0010] Furthermore, the embedded part is connected with anchoring steel bars, which are anchored into the well ring.

[0011] Furthermore, the embedded part includes a base plate and a side plate, the side plate being perpendicular to the base plate, and the tray being placed on the base plate.

[0012] Furthermore, the tray is a stainless steel tray.

[0013] By adopting the above technical solution, this utility model has the following beneficial effects compared with the prior art:

[0014] 1) The concealed manhole cover structure provided by this utility model has a tray set on the manhole ring, and a buffer filling layer is filled between the tray and the manhole cover. The buffer filling layer can resist the downward bending deformation of the tray under vertical force, improve the strength and load-bearing capacity of the manhole cover structure, and also play a buffering role to prevent the tray from shaking when vehicles pass by, and can reduce noise to a certain extent.

[0015] 2) The concealed manhole cover structure provided by this utility model has a support component at the bottom of the tray. On the one hand, when the tray is bent and deformed, the support component can support the manhole cover and play a certain supporting role. On the other hand, it can improve the connection reliability between the tray and the sand pad layer and prevent the tray from shaking. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 A schematic diagram of the concealed manhole cover structure provided by this utility model;

[0018] Figure 2 This is a top view of the support component in the concealed manhole cover structure provided by this utility model.

[0019] 1-Well wall; 2-Well cover; 21-Cover seat; 3-Well ring; 4-Embedded parts; 41-Anchoring steel bars; 5-Sand cushion layer; 6-Platform; 7-Surface layer; 8-Cement mortar; 9-Supporting components; 91-Transverse rib plate; 92-Longitudinal rib plate; 10-Rubber ring. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model. In the accompanying drawings, the dimensions and relative dimensions of certain parts may be enlarged for clarity.

[0021] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connection" and "connected" should be interpreted broadly. For example, they can be fixed connections, detachable connections, or integral connections; they can be mechanical connections or electrical connections; they can be direct connections or indirect connections through an intermediate medium; they can be internal connections between two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0022] In the description of this utility model, the terms "upper", "lower", "left", "right", "front", "back", "center", "horizontal", "vertical", "top", "bottom", "inner", and "outer" are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] Furthermore, in the description of this utility model, the terms "first" and "second" are used merely for descriptive distinction and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Additionally, features defined with "first" and "second" may explicitly or implicitly include one or more of that feature.

[0024] As per the instruction manual Figure 1 As shown, this utility model provides an invisible manhole cover structure, including a manhole cover 2, a manhole ring 3, and a tray 6. The manhole ring 3 and the manhole cover 2 are disposed on the manhole wall 1. The inner side of the manhole ring 3 has a through hole that is wider at the top and narrower at the bottom. The manhole cover 2 is disposed in the lower through hole, and the tray 6 is disposed in the upper through hole. A buffer filling layer and a support component 9 are provided between the tray 6 and the manhole cover 2. The support component 9 is connected to the bottom of the tray 6. The tray 6 has a surface layer 7 that is flush with the road surface.

[0025] Preferably, the manhole cover 2 is a cast iron manhole cover, which has good strength and rigidity, can play a supporting role, and transmit the force received to the manhole wall. The surface layer 7 is set on the tray 6 with cement mortar 8. The surface layer 7 is at the same height as the surrounding road surface. The surface layer 7 can be made of the same bricks as the road surface or different bricks, and can be arranged according to the needs.

[0026] Specifically, the manhole wall 1 is lower than the road surface. The manhole cover 2 and manhole ring 3 are both set on the manhole wall 1. The manhole ring 3 is arranged around the manhole cover 2. The manhole ring 3 and the manhole cover 2 are fitted with a gap to facilitate the installation and removal of the manhole cover 2 during maintenance. The inner side of the manhole ring 3 is provided with a through hole that is wider at the top and narrower at the bottom. This through hole is coaxially set with the manhole cover 2. The manhole ring 3 is made of C25 concrete and is cast in place. When the manhole ring 3 is cast, it forms a through hole that is wider at the top and narrower at the bottom. A stepped surface is formed between the upper and lower through holes for installing the tray 6. The edge of the tray 6 is supported on the stepped surface. The middle part of the tray 6 is supported on the manhole cover by a buffer filling layer and a support component. The surface layer 7 is set on the tray 6 with cement mortar 8 and is flush with the surrounding road surface.

[0027] Preferably, the well wall 1 is further provided with a cover seat 21, the well cover 2 is provided on the cover seat 21, and the cover seat 21 is located inside the well ring 3.

[0028] As one specific embodiment, the inner side of the cover seat 21 is provided with an L-shaped receiving groove for placing the manhole cover 2, and the outer side of the cover seat 21 is provided with an L-shaped receiving groove for connecting with the manhole ring 3. The manhole cover 2 and the cover seat 21 can be limited by a pin.

[0029] In some embodiments, to strengthen the connection between the well ring 3 and the cover seat 21, the well ring 3 and the cover seat 21 can be anchored.

[0030] In an optimized implementation, the buffer filling layer includes a rubber ring 10 arranged around the edge of the manhole cover 2 and a sand pad layer 5 disposed within the rubber ring 10. To facilitate removal of the manhole cover 2, the manhole cover 2 and the cover seat 21 are fitted with a clearance. To prevent sand from the sand pad layer 5 from falling into the gap between the manhole cover 2 and the cover seat 21, a rubber ring 10 is arranged along the edge of the manhole cover 2. The rubber ring 10 is located above the gap between the manhole cover 2 and the cover seat 21, and the sand pad layer 5 is disposed inside the rubber ring 10 to prevent sand from overflowing. The rubber ring 10 and the sand pad layer 5 are at the same height. The sand pad layer 5 can support the tray 6, preventing the tray 6 from deforming downwards, and also provides a buffering effect.

[0031] In an optimized implementation, to further enhance the strength of the tray 6, a support component 9 is provided at the bottom of the tray 6. The support component 9 is inserted into the sand pad layer 5, and the tray 6 is further supported by the support component 9. The support component 9 is located inside the rubber ring to avoid damage to the rubber layer.

[0032] Preferably, to avoid unevenness of the tray 6 caused by unevenness of the upper surface of the manhole cover 2, a certain gap is provided between the bottom of the support component 9 and the manhole cover 2 to ensure that the tray 6 can be installed on the manhole ring 3. If the tray 6 bends downward and deforms significantly, the support component 9 moves downward and contacts the manhole cover 2, supporting the manhole cover 2, which can provide a certain support. If the tray 6 bends downward and deforms slightly, it can directly provide a buffer support through the sand pad layer 5.

[0033] In some embodiments, if the surface of the manhole cover 2 is flat, the bottom of the support assembly 9 contacts the manhole cover 2, and the support assembly 9 and the sand pad layer 5 work together to provide support and improve the strength of the tray 6.

[0034] Optimized implementation methods, as shown in the appendix to the instruction manual. Figure 2 As shown, the support assembly 9 includes several spaced-apart transverse ribs 91 and several spaced-apart longitudinal ribs 92. The transverse ribs 91 and longitudinal ribs 92 are arranged in a crisscross pattern. The height of the transverse ribs 91 and longitudinal ribs 92 is set according to the distance between the manhole cover 2 and the bottom plate of the tray 6. The force on the tray 6 can be transmitted to the manhole cover 2 through the support assembly 9 and the sand pad layer 5, and then to the manhole wall 1, preventing excessive local stress on the tray 6. The transverse ribs 91 and longitudinal ribs 92 are located within the sand pad layer 5, which can enhance the connection strength between the tray 6 and the sand pad layer 5. When a vehicle drives over the manhole cover, it can reduce the shaking of the tray and reduce noise to a certain extent.

[0035] In an optimized implementation, each of the transverse reinforcing plates 91 and each of the longitudinal reinforcing plates 92 are respectively welded to the bottom of the tray 6.

[0036] In the optimized implementation, all the transverse reinforcing plates 91 and all the longitudinal reinforcing plates 92 are made of stainless steel, which has good rigidity and stability.

[0037] In an optimized implementation, the sand cushion layer 5 uses medium sand, and its thickness is 20-35mm. In this embodiment, the thickness of the sand cushion layer is 30mm. During maintenance, the pallet is moved aside, the sand from the medium sand cushion layer is collected to one side, the rubber ring is removed, and the manhole cover is opened for maintenance. After maintenance, the manhole cover is replaced, the rubber ring is installed, and then the sand is reapplied to the manhole cover, with any lost sand replenished to ensure that the elevation of the upper surface of the medium sand cushion layer is flush with the horizontal plane of the embedded part. Setting a sand cushion layer between the pallet and the manhole cover is inexpensive, durable, and reusable, allowing for replenishment as needed and reducing costs. It also provides cushioning and support.

[0038] Preferably, the upper end of the tray 6 is provided with a handle hole for easy maintenance. The tray can be removed by using a pry tool or lifting equipment to operate on the handle hole for easy maintenance.

[0039] Preferably, the well ring 3 is pre-embedded with a 5mm thick embedded part 4 during the pouring process, for installing the tray 6.

[0040] In an optimized implementation, the embedded part 4 is connected to an anchoring steel bar 41, which is anchored into the well ring 3. The anchoring steel bar 41 is preferably a threaded steel bar. The anchoring steel bar 41 is embedded into the well ring 3, and the embedded part 4 is fixed to the anchoring steel bar 41.

[0041] In an optimized implementation, the embedded part 4 is annular, arranged around the inner side of the well ring 3, wherein the inner side of the well ring 3 refers to the side of the well ring 3 closest to its central axis. The embedded part 4 includes a base plate and a side plate, the side plate being L-shaped and perpendicular to the base plate. The tray 6 is placed on the base plate, and the inner side of the well ring 3 is provided with an installation groove adapted to the embedded part 4, into which the embedded part 4 is placed.

[0042] In an optimized implementation, a gap of 10mm is provided between the side wall of the tray 6 and the side plate of the embedded part 4 to facilitate the installation of the tray 6 and the opening of the tray 6 for maintenance.

[0043] In an optimized implementation, the tray 6 is a stainless steel tray.

[0044] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0045] Those skilled in the art will understand that this invention can be implemented in many other specific forms without departing from the spirit and scope of this invention. Although embodiments of this invention have been described, it should be understood that this invention is not limited to these embodiments, and those skilled in the art can make changes and modifications within the spirit and scope of this invention as defined in the appended claims.

Claims

1. A concealed manhole cover structure, characterized in that, The device includes a manhole cover, a manhole ring, and a tray. The manhole ring and the manhole cover are installed on the manhole wall. The manhole ring has a through hole that is wider at the top and narrower at the bottom. The manhole cover is installed in the lower through hole, and the tray is installed in the upper through hole. A buffer filling layer and a support assembly are provided between the tray and the manhole cover. The support assembly is connected to the bottom of the tray. The tray has a surface layer that is flush with the road surface.

2. The concealed manhole cover structure according to claim 1, characterized in that, The buffer filling layer includes a rubber ring arranged around the edge of the manhole cover and a sand pad layer inside the rubber ring.

3. The concealed manhole cover structure according to claim 1, characterized in that, The support assembly includes several spaced transverse ribs and several spaced longitudinal ribs, with the transverse and longitudinal ribs arranged in a crisscross pattern.

4. The concealed manhole cover structure according to claim 3, characterized in that, Each of the transverse reinforcing plates and each of the longitudinal reinforcing plates are welded to the bottom of the tray.

5. The concealed manhole cover structure according to claim 3, characterized in that, All of the transverse reinforcing plates and all of the longitudinal reinforcing plates are made of stainless steel.

6. The concealed manhole cover structure according to claim 1, characterized in that, The height of the buffer filling layer is 20-35 mm.

7. The concealed manhole cover structure according to claim 1, characterized in that, It also includes embedded parts, which are set on the upper through hole of the well ring, and the tray is placed on the embedded parts.

8. The concealed manhole cover structure according to claim 7, characterized in that, The embedded part is connected to an anchoring steel bar, which is anchored into the well ring.

9. The concealed manhole cover structure according to claim 7, characterized in that, The embedded component includes a base plate and a side plate, the side plate being perpendicular to the base plate, and the tray being placed on the base plate.

10. The concealed manhole cover structure according to claim 1, characterized in that, The tray is a stainless steel tray.

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