Integrated well lid

Abstract

The utility model discloses an integrated well lid which comprises a concrete well seat, a well lid body and a water outlet, the water outlet is formed in the middle of the concrete well seat, the well lid body is integrally poured in the center of the concrete well seat, and at least two steel bar assemblies for hoisting are arranged in the concrete well seat around the well lid body. When the integrated well lid needs to be hoisted to a drainage port of a roadbed after being poured, a worker can directly bind through a rope or lock an annular steel bar penetrating through the prefabricated sleeve through a lifting hook of a hoisting machine, then the concrete well base is hoisted through the hoisting machine, and therefore the whole steel bar assembly is stressed in the actual hoisting process, and the construction efficiency is improved. And in addition, in rainy days, part of rainwater can directly flow into the drainage opening through the prefabricated sleeve, and the drainage effect of the well lid is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of manhole covers, in particular to an integrated manhole cover. Background Art

[0002] Traditional manhole covers are cast-in-place, which takes a long time to construct. Installation and maintenance require at least 10 days. Therefore, integrated manhole covers have appeared on the market. This kind of construction scheme integrates the manhole cover with the road surface, which reduces the processing period, improves the flatness, stability and aesthetics of the road, and effectively reduces the occurrence of traffic accidents.

[0003] However, in order to facilitate the lifting of the existing integrated manhole cover and its concrete manhole seat during casting, it is necessary to pre-embed hanging nails in the concrete manhole seat. The hanging nails are vertical and perpendicular to the cast concrete manhole seat. Therefore, the pre-embedded hanging nails are often subjected to vertical force in the cast concrete manhole seat. Since the existing hanging nails are relatively small, the vertical force will cause the hanging nails to fall off or be pulled out during the actual lifting process, resulting in lifting failure. In addition, the process of pre-embedding hanging nails is relatively complicated.

[0004] Therefore, the utility model proposes an integrated manhole cover based on the above problems. Utility Model Content

[0005] The purpose of the utility model is to solve the problem that the hanging nails are pre-buried in the prior art, and the hanging nails are in a vertical shape. In the actual lifting process, the vertical force may cause the hanging nails to fall off or be pulled out during lifting, resulting in lifting failure, and the pre-buried hanging nail process is relatively complicated;

[0006] Therefore, based on the above-mentioned problem, the utility model proposes an integrated manhole cover, including a concrete manhole seat, a manhole cover and a drain outlet. A drain outlet is opened in the middle of the concrete manhole seat, and a manhole cover is cast integrally at the center of the concrete manhole seat. At least two steel bar assemblies for lifting are arranged around the manhole cover inside the concrete manhole seat.

[0007] Preferably: the steel bar assembly includes: supporting steel bars, annular steel bars and prefabricated sleeves, which are provided at the upper and lower parts of the concrete well seat, and at least two supporting steel bars are provided at the upper and lower parts of the concrete well seat, and preferably three supporting steel bars are provided at the upper and lower parts of the concrete well seat, and the six supporting steel bars are externally sleeved with annular steel bars, wherein the upper and side parts of the annular steel bars are penetrated by prefabricated sleeves, and the upper supporting steel bars and the lower supporting steel bars are bundled with multiple inclined steel bars, and the annular steel bars can be composed of four straight steel bars bundled together, or they can be composed of two L-shaped steel bars bundled together.

[0008] Preferably, the prefabricated sleeve is L-shaped and hollow inside, the upper end of the prefabricated sleeve is flush with the concrete well seat, and the lower end is connected to the drain outlet.

[0009] Preferably, the height of the center of the concrete well seat is higher than the height of the outer side of the concrete well seat, and the height difference between the two is 10-15 degrees.

[0010] Preferably: the outer side of the concrete well seat is provided with a chamfer that is not easily damaged. In actual use, the chamfer can reduce the stress on the four corners of the concrete well seat and protect it from cracking.

[0011] Beneficial Effects

[0012] 1. In the actual application process, when the integrated manhole cover needs to be hoisted to the drainage outlet of the roadbed after pouring, the staff can directly lock the annular steel bar running through the prefabricated sleeve by rope binding or the hook of the hoisting machine, and then lift the concrete manhole seat by the hoisting machine. Since the steel bar assembly is directly hoisted during hoisting, the entire steel bar assembly is actually subjected to force during hoisting, which greatly enhances the hoisting force. In addition, when encountering rainy weather, part of the rainwater can flow directly into the drainage outlet through the prefabricated sleeve, which enhances the drainage effect of the manhole cover.

[0013] 2. By making the height of the center of the concrete well seat higher than the height of the outer side of the concrete well seat, and the height difference between the two is 10-15 degrees, the stress concentration when the vehicle impacts the concrete well seat can be reduced, thereby reducing the impact stress. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the internal structure of the utility model as a whole;

[0015] Figure 2 This is a schematic diagram of the structure of the overall internal steel reinforcement frame assembly of the utility model;

[0016] Figure 3 It is a schematic cross-sectional view of the internal structure of the utility model as a whole;

[0017] Figures 1 to 3 The reference numerals are: concrete well base 1, inclined surface 101, chamfer 102, drain outlet 104, well cover 2, supporting steel bars 3, annular steel bars 301, inclined steel bars 302, prefabricated sleeve 4. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0019] Reference Figures 1 to 3An integrated manhole cover includes a concrete manhole base 1, a manhole cover 2 and a drain port 104. The drain port 104 is opened in the middle of the concrete manhole base 1, and the manhole cover 2 is integrally cast at the center of the concrete manhole base 1. At least two steel bar assemblies for lifting are arranged around the manhole cover 2 inside the concrete manhole base 1.

[0020] Preferably: the steel bar assembly includes: supporting steel bars 3, annular steel bars 301 and prefabricated sleeves 4. More than two supporting steel bars 3 are provided at the upper and lower parts of the concrete well seat 1. Preferably, three supporting steel bars 3 are provided at the upper and lower parts of the concrete well seat 1. The six supporting steel bars 3 are externally sleeved with annular steel bars 301, wherein the upper and side parts of the annular steel bars 301 are penetrated by prefabricated sleeves 4. The upper supporting steel bars 3 and the lower supporting steel bars 3 are bundled with a plurality of inclined steel bars 302. A triangular shape is formed by bundling a plurality of inclined steel bars 302 at the upper supporting steel bars 3 and the lower supporting steel bars 3. The longitudinal force between the concrete well seat 1 and the manhole cover 2 is enhanced to prevent the deformation of the annular steel bars 301 and the sinking or rupture of the concrete well seat at the edge of the manhole cover 2 due to insufficient force when a heavier vehicle rolls over the manhole cover for a long time. The annular steel bar 301 can be composed of four straight steel bars bundled together, or it can be composed of two L-shaped steel bars bundled together.

[0021] Preferably: the prefabricated sleeve 4 is L-shaped and hollow inside, the upper end of the prefabricated sleeve 4 is flush with the concrete well seat 1, and the lower end is connected to the drain outlet 104. When the integrated well cover is cast and needs to be hoisted to the drain outlet of the roadbed, the staff can directly lock the annular steel bar 301 running through the prefabricated sleeve 4 by rope binding or the hook of the hoisting machine, and then the concrete well seat 1 is hoisted by the hoisting machine. Since the steel bar assembly is directly hoisted during hoisting, the entire steel bar assembly is actually subjected to force during hoisting, which greatly enhances the force of hoisting.

[0022] Preferably, the height of the center of the concrete well seat 1 is higher than the height of the outer side of the concrete well seat 1, and the height difference between the two is 10-15 degrees. The height difference between the two has the effect of facilitating drainage, and the height difference of 10-15 degrees can reduce stress concentration, so the impact stress will also be reduced.

[0023] Preferably, the outer side of the concrete well seat 1 is provided with a chamfer which is not easily damaged.

[0024] Working principle:

[0025] In actual application, when the integrated manhole cover needs to be hoisted to the drainage outlet of the roadbed after casting, the staff can directly lock the annular steel bar 301 running through the prefabricated sleeve 4 by rope binding or the hook of the hoisting machine, and then the concrete manhole seat 1 is hoisted by the hoisting machine. Since the steel bar assembly is directly hoisted during hoisting, the entire steel bar assembly is actually subjected to force during hoisting, which greatly enhances the force of hoisting;

[0026] Furthermore, when it rains, part of the rainwater can flow directly into the drain port 104 through the prefabricated sleeve 4, thereby enhancing the drainage effect of the manhole cover.

[0027] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An integrated manhole cover, comprising a concrete manhole base (1), a manhole cover (2) and a drain outlet (104), wherein the drain outlet (104) is provided in the middle of the concrete manhole base (1), and the manhole cover (2) is integrally cast at the center of the concrete manhole base (1), characterized in that: At least two steel bar assemblies for lifting are arranged inside the concrete well seat (1) and around the well cover (2); The steel bar assembly comprises: supporting steel bars (3), annular steel bars (301) and a prefabricated sleeve (4), and at least two supporting steel bars (3) are provided at the upper and lower parts of the concrete well seat (1).

2. The integrated manhole cover according to claim 1, characterized in that: The concrete well seat (1) is provided with three supporting steel bars (3) at the upper and lower parts thereof, and the six supporting steel bars (3) are sleeved with annular steel bars (301) at the outside, wherein the upper and side parts of the annular steel bars (301) are penetrated by prefabricated sleeves (4), and the upper supporting steel bars (3) and the lower supporting steel bars (3) are bundled with a plurality of inclined steel bars (302).

3. The integrated manhole cover according to claim 2, characterized in that: The prefabricated sleeve (4) is L-shaped and hollow inside; the upper end of the prefabricated sleeve (4) is flush with the concrete well seat (1), and the lower end is connected to the drainage outlet (104).

4. The integrated manhole cover according to claim 1, characterized in that: The height of the center of the concrete well seat (1) is higher than the height of the outer side of the concrete well seat (1), and the height difference between the two is 10-15 degrees.

5. The integrated manhole cover according to claim 1, characterized in that: The outer side of the concrete well seat (1) is provided with a chamfer that is not easily damaged.

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