Multifunctional UHPC manhole cover device based on multi-layer structure design

Abstract

A multifunctional UHPC manhole cover device based on a multi-layer structure design, comprising a manhole frame (1) and a manhole cover (2). A snap-fit slot (11) is formed in the manhole frame (1); the manhole cover (2) is arranged in the snap-fit slot (11); the manhole cover (2) comprises a metal frame (21), reinforcing ribs (22) and a filling layer (23); the reinforcing ribs (22) are arranged in the metal frame (21); the filling layer (23) is arranged between the metal frame (21) and the reinforcing ribs (22); and a plurality of cylindrical protrusions (231) are evenly distributed at the top of the filling layer (23).

Description

Multifunctional UHPC well lid device based on multi-layer structure design TECHNICAL FIELD

[0001] The utility model relates to well lid technical field, more specifically, especially a kind of multifunctional UHPC well lid device based on multi-layer structure design. BACKGROUND

[0002] Well lid is everywhere in green belt, sidewalk, motorway, its function is to cover the well mouth of underground passage, drainage and pipeline passage entrance and exit, facilitate underground operation, prevent people or object from falling down.Currently common well lid is mainly divided into cast iron, macromolecule and ordinary concrete well lid, ordinary concrete bearing capacity is low, not corrosion resistant, facing elimination.Cast iron well lid is easy to rust, bearing capacity is also small and also easy to be stolen, driving noise is large.

[0003] UTILITARY MODEL CONTENT

[0004] The utility model provides a kind of multifunctional UHPC well lid device based on multi-layer structure design to solve the problems raised in the above background technique.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] A kind of multifunctional UHPC well lid device based on multi-layer structure design, including well seat and well lid;

[0007] The well seat is equipped with clamping groove, and the well lid is arranged in the clamping groove;

[0008] The well lid includes frame, reinforcing rib and filling layer;

[0009] The reinforcing rib is arranged in the frame, and the filling layer is arranged between the frame and the reinforcing rib, and the top of the filling layer is uniformly distributed with a plurality of cylindrical convex parts;

[0010] The reinforcing rib includes top layer rib mesh and middle layer rib mesh, and the top layer rib mesh and the middle layer rib mesh are arranged at the center position of the frame, and the area of the top layer rib mesh is less than the area of the middle layer rib mesh;The top layer rib mesh includes a plurality of top layer horizontal rib strips and a plurality of top layer vertical rib strips, and the top layer horizontal rib strips and the top layer vertical rib strips are arranged perpendicular to each other;The middle layer rib mesh includes a plurality of middle layer horizontal rib strips and a plurality of middle layer vertical rib strips, and the middle layer horizontal rib strips and the middle layer vertical rib strips are arranged perpendicular to each other;

[0011] The filling layer is UHPC filling layer, and the well seat is UHPC well seat.

[0012] Preferably, the top layer horizontal ribs and the top layer vertical ribs have the same diameter and length, the middle layer horizontal ribs and the middle layer vertical ribs have the same diameter and length, and the diameter and length of the top layer horizontal ribs are smaller than those of the middle layer horizontal ribs; the top layer vertical ribs, the top layer horizontal ribs, the middle layer horizontal ribs and the middle layer vertical ribs are sequentially arranged in the frame from top to bottom.

[0013] Preferably, the reinforcing rib further comprises a bottom layer rib mesh comprising a plurality of bottom layer horizontal ribs and a plurality of bottom layer vertical ribs, and the bottom layer horizontal ribs and the bottom layer vertical ribs are arranged perpendicularly to each other.

[0014] Preferably, the reinforcing rib is a steel fiber reinforcing rib or an engineering fiber reinforcing rib.

[0015] Preferably, the surface of the reinforcing rib is roughened to form a rough surface.

[0016] Preferably, the outer surfaces of the well cover and the well seat are respectively provided with an outer cladding layer, and the outer cladding layer is a UHPC outer cladding layer.

[0017] Preferably, the periphery of the well seat is provided with a plurality of limiting protrusions, and the plurality of limiting protrusions are arranged in a circumferential array structure around the clamping groove.

[0018] Preferably, the surfaces of the well cover and the well seat are provided with a waterproof and impermeable coating layer, and the material of the waterproof and impermeable coating layer is methyl methacrylate, and the thickness of the waterproof and impermeable coating layer is 200 nm.

[0019] Preferably, the surface of the well cover is provided with a functional coating layer; the functional coating layer is an inorganic pigment coating layer, a fluorescent phase change material coating layer or a reflective material coating layer; and the functional coating layer is externally sprayed with a methyl methacrylate coating layer with a thickness of 200-300 nm.

[0020] Preferably, the frame is a metal frame.

[0021] Preferably, the diameter of the well lid is 900mm, which is larger than the size of a conventional well lid. Compared with the prior art, the well lid device has the advantages that: the well lid and the well seat are made of UHPC material, so that the well lid and the well seat have the advantages of rust prevention, theft prevention, noise reduction, aging resistance and the like, and have good bearing capacity and a large safety margin coefficient. Through optimization of the distribution structure of the internal reinforcing ribs of the well lid, the top layer rib mesh and the bottom layer rib mesh are arranged in the area of the well lid where the stress is large, and the middle layer rib mesh is arranged in the area where the stress is low, so that the overall bearing capacity is effectively improved, and the amount of reinforcing ribs is saved to reduce the product cost. In addition, by arranging different coatings, the functionality of the well lid is increased, and the use effect of the well lid is improved. Compared with the traditional well lid, the well lid device can improve the overall bearing capacity, has high strength and long service life, and can effectively reduce the cost of the well lid. BRIEF DESCRIPTION OF DRAWINGS

[0022] Fig. 1 is a structure diagram of the multifunctional UHPC well lid device based on the multi-layer structure design according to the embodiment of the present application;

[0023] Fig. 2 is a structure diagram of the multifunctional UHPC well lid device based on the multi-layer structure design according to the embodiment of the present application;

[0024] Fig. 3 is a well seat structure diagram of the multifunctional UHPC well lid device based on the multi-layer structure design according to the embodiment of the present application;

[0025] Fig. 4 is a well seat sectional view of the multifunctional UHPC well lid device based on the multi-layer structure design according to the embodiment of the present application;

[0026] Fig. 5 is a well lid structure diagram of the multifunctional UHPC well lid device based on the multi-layer structure design according to the embodiment of the present application;

[0027] Fig. 6 is a side view of the well lid of the multifunctional UHPC well lid device based on the multi-layer structure design according to the embodiment of the present application;

[0028] Fig. 7 is a top layer rib mesh structure diagram of the multifunctional UHPC well lid device based on the multi-layer structure design according to the embodiment of the present application;

[0029] Fig. 8 is a middle layer rib mesh and bottom layer rib mesh structure diagram of the multifunctional UHPC well lid device based on the multi-layer structure design according to the embodiment of the present application;

[0030] Fig. 9 is a side sectional view of the well lid of the multifunctional UHPC well lid device based on the multi-layer structure design according to the embodiment of the present application;

[0031] In FIG. 1 to FIG. 9, the corresponding relationship between the names of various components and the reference numerals of the drawings is as follows: 1 - well seat, 11 - clamping groove, 12 - limiting protrusion, 2 - well cover, 21 - frame, 22 - reinforcing rib, 221 - top layer rib mesh, 2211 - top layer horizontal rib, 2212 - top layer vertical rib, 222 - middle layer rib mesh, 2221 - middle layer horizontal rib, 2222 - middle layer vertical rib, 223 - bottom layer rib mesh, 23 - filling layer, 231 - cylindrical protruding part. DETAILED DESCRIPTION

[0032] The embodiments of the present application will be further described in detail below with reference to the drawings and examples. The following examples are used to illustrate the present application, but cannot be used to limit the scope of the present application.

[0033] In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and are not intended to indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0034] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0035] It should be noted that UHPC is ultra-high performance concrete, and ultra-high performance concrete belongs to the prior art, so it will not be described in detail.

[0036] Please refer to FIG. 1 to FIG. 9, the present application provides a kind of multi-function UHPC well cover device based on multi-layer structure design, including well seat 1 and well cover 2;

[0037] The well seat 1 is provided with a clamping groove 11, and the well cover 2 is arranged in the clamping groove 11.

[0038] The well cover 2 includes a frame 21, a reinforcing rib 22 and a filling layer 23.

[0039] The frame is preferably a metal frame.

[0040] The reinforcing rib 22 is arranged in the metal frame 21, the filling layer 23 is arranged between the metal frame 21 and the reinforcing rib 22, and the top of the filling layer 23 is uniformly distributed with a plurality of cylindrical convex portions 231.

[0041] The reinforcing rib 22 comprises a top layer rib net 221 and a middle layer rib net 222, the top layer rib net 221 and the middle layer rib net 222 are arranged at the center position of the metal frame 21, and the area of the top layer rib net 221 is smaller than that of the middle layer rib net 222; the top layer rib net 221 comprises a plurality of top layer horizontal rib strips 2211 and a plurality of top layer vertical rib strips 2212, and the top layer horizontal rib strips 2211 and the top layer vertical rib strips 2212 are arranged perpendicular to each other; the middle layer rib net 222 comprises a plurality of middle layer horizontal rib strips 2221 and a plurality of middle layer vertical rib strips 2222, and the middle layer horizontal rib strips 2221 and the middle layer vertical rib strips 2222 are arranged perpendicular to each other.

[0042] The filling layer 23 is made of UHPC material, and the well seat 1 is made of UHPC material.

[0043] The traditional well cover device mainly realizes the bearing capacity by increasing the thickness or adding rib plates when the bearing capacity is not enough, which is heavy and not beautiful. Compared with the traditional well cover device, the well cover device of the embodiment adopts UHPC material, UHPC is ultra-high performance concrete, which mainly shows high strength, high toughness, high durability, good and stable overall performance, and the product life cycle is greatly improved. The performance of the base material made of UHPC is higher, which can reach 140-160 megapascals, the UHPC adopts fine bone material, high-grade cement, ultra-fine high-activity mineral admixture, micro-bead ultra-fine powder and special organic chemical additives and other materials to produce multiple filling effects in the UHPC structure system, form a dense structure, reduce micro defects, greatly optimize the internal micro-pore structure, so as to achieve high mechanical properties, durability and construction performance, and the addition of steel fiber or various engineering fibers improves the brittleness of the base material and improves the toughness.

[0044] The UHPC material has the advantages of anti-rust, anti-theft, noise reduction, and non-aging, and due to the excellent performance of UHPC, it has good bearing capacity and large safety margin coefficient, and the breaking load of the D400 well cover 2 can reach 60 tons.

[0045] The embodiment establishes a stress model of the well lid 2 through finite element analysis, and designs the distribution of the reinforcing rib 22 of the UHPC according to the stress condition. For the area with large stress, the content of the reinforcing rib 22 is high, and for the area with low stress, the content of the reinforcing rib 22 is low. In addition, the transverse and longitudinal distribution in the reinforcing rib 22 is in the same plane, such as the top horizontal rib 2211 distributed in the same plane, and each rib is distributed in the same plane, so that the transverse and longitudinal ribs have the same thickness of the protective layer, and higher tensile strength is achieved. In addition, the UHPC material itself has super high strength, thereby improving the overall carrying capacity of the well lid device, and saving the amount of reinforcing rib 22 and saving product cost.

[0046] Further, color paste material can be added in the UHPC ratio, and the dispersibility of the color paste in the concrete is further improved to make well lids 2 of various colors, facilitating the classification and management of the well lids 2.

[0047] Preferably, the diameter and length of the top horizontal rib 2211 are the same as those of the top vertical rib 2212, the diameter and length of the middle horizontal rib 2221 are the same as those of the middle vertical rib 2222, and the diameter and length of the top horizontal rib 2211 are smaller than those of the middle horizontal rib 2221. The top vertical rib 2212, the top horizontal rib 2211, the middle horizontal rib 2221 and the middle vertical rib 2222 are sequentially arranged in the metal frame 21 from top to bottom.

[0048] Preferably, the reinforcing rib 22 further comprises a bottom rib mesh 223, the bottom rib mesh 223 comprises a plurality of bottom horizontal ribs and a plurality of bottom vertical ribs, and the bottom horizontal ribs and the bottom vertical ribs are arranged perpendicular to each other.

[0049] Preferably, the reinforcing rib 22 is a steel fiber or an engineering fiber.

[0050] Preferably, the surface of the reinforcing rib 22 is roughened to become a rough surface. The embodiment processes and treats the reinforcing rib 22, roughens the surface of the reinforcing rib 22 to have better gripping property, thereby improving the tensile property.

[0051] Preferably, the outer surfaces of the well lid 2 and the well seat 1 are respectively provided with an outer cladding layer, and the outer cladding layer is made of UHPC material. In the embodiment, the well lid 2 and the well seat 1 are fully cladded with UHPC super high performance concrete, effectively improving the corrosion and rust resistance.

[0052] Preferably, the outer periphery of the well seat 1 is provided with a plurality of limiting protrusions 12, which are arranged in a circumferential array structure and distributed around the clamping groove 11. By adding limiting protrusions 12 to the outer periphery of the well seat 1, not only the material consumption of the entire well seat 1 can be reduced, but also the installation can be more stable.

[0053] Preferably, the surface of the well cover 2 and the well seat 1 is provided with a layer of waterproof and anti-permeable coating, and the material of the waterproof and anti-permeable coating is methyl methacrylate, and the thickness is 200 nm. Through the above structure design, after the completion of the substrate, a layer of 200 nm methyl methacrylate coating is brushed on the substrate, so that the waterproof and anti-permeable property of the substrate is improved.

[0054] Preferably, the surface of the well cover 2 is provided with a functional coating layer; the functional coating layer is an inorganic pigment coating layer, a fluorescent phase change material coating layer or a reflective material coating layer. In the embodiment, the functional coating layer can be set as needed, such as adding inorganic pigments to make inorganic coating layers, and different inorganic pigments can be added according to needs to make products of different colors, such as red, green, black or custom colors according to color cards, so that the color of the well cover 2 has diversity, which facilitates the differentiation of well covers 2 for different purposes and facilitates classification management.

[0055] By adding fluorescent phase change material, it can convert into energy by absorbing light during the day and into light energy at night, reminding pedestrians and traffic participants of the existence of the well cover 2, which can effectively improve the recognition rate and auxiliary function at night or in special environment, and enable the well cover 2.

[0056] In addition, reflective materials can also be added to block direct sunlight and reduce the temperature of the well cover 2, which is especially suitable for environments that need to be cooled, such as chemical raw material covers.

[0057] Preferably, the functional coating layer is externally sprayed with a layer of methyl methacrylate coating with a thickness of 200-300 nm. By spraying a layer of methyl methacrylate coating on the functional coating layer, the anti-permeability of the substrate can be improved, and the functional coating layer can be well protected.

[0058] Compared with the prior art, the utility model has the advantages that: the utility model has adopted UHPC material to make the well lid and well pedestal, so that the well lid and well pedestal have the advantages of rust prevention, theft prevention, noise reduction, aging resistance and the like, and have good bearing capacity and large safety margin coefficient. Through optimization of the distribution structure of the internal reinforcing ribs of the well lid, top layer rib mesh and bottom layer rib mesh are arranged in the area of the well lid with large stress, and middle layer rib mesh is arranged to cover the area with low stress, so that the overall bearing capacity is effectively improved, the amount of reinforcing ribs is saved to reduce product cost. In addition, different coating layers are arranged to increase the functionality of the well lid and improve the use effect of the well lid. Compared with the traditional well lid, the well lid device of the utility model can improve the overall bearing capacity, has high strength and long service life, and can effectively reduce the cost of the well lid.

[0059] The embodiments of the present application are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present application to the disclosed form. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are chosen and described in order to best explain the principles of the present application and its practical application, and to enable others skilled in the art to understand the present application for various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. A multi-functional UHPC manhole cover device based on multi-layer structure design, characterized in that, The well seat (1) and the well cover (2) are included. The well seat is provided with a clamping groove (11), and the well cover is arranged in the clamping groove. The well cover includes a frame (21), a reinforcing rib (22) and a filling layer (23). The reinforcing rib is arranged in the frame, and the filling layer is arranged between the frame and the reinforcing rib. The reinforcing rib includes a top layer rib mesh (221) and a middle layer rib mesh (222), and the top layer rib mesh and the middle layer rib mesh are arranged at the center of the frame. The filling layer is a UHPC filling layer, and the well seat is a UHPC well seat.

2. The multi-functional UHPC manhole cover device based on multi-layer structure according to claim 1, characterized in that, The diameters and lengths of the top layer horizontal rib and the top layer vertical rib are the same, the diameters and lengths of the middle layer horizontal rib and the middle layer vertical rib are the same, and the diameters and lengths of the top layer horizontal rib are smaller than those of the middle layer horizontal rib.

3. The multi-functional UHPC manhole cover device designed based on multi-layer structure according to claim 2, characterized in that, The reinforcing rib further includes a bottom layer rib mesh (223) including a plurality of bottom layer horizontal ribs and a plurality of bottom layer vertical ribs arranged perpendicularly.

4. The multi-functional UHPC manhole cover device designed based on multi-layer structure according to claim 3, characterized in that, The reinforcing rib is a steel fiber reinforcing rib or an engineering fiber reinforcing rib.

5. The multi-functional UHPC manhole cover device based on multi-layer structure according to claim 4, characterized in that, The surface of the reinforcing rib is roughened to form a rough surface.

6. The multi-functional UHPC manhole cover device based on multi-layer structure according to claim 1, characterized in that, The outer surfaces of the well cover and the well seat are respectively provided with an outer cladding layer, which is a UHPC outer cladding layer.

7. The multi-functional UHPC manhole cover device designed based on multi-layer structure according to claim 6, characterized in that, The outer periphery of the well seat is provided with a plurality of limiting protrusions (12) arranged in a circumferential array structure around the clamping groove.

8. The multi-functional UHPC manhole cover device designed based on multi-layer structure according to claim 1, characterized in that, The surfaces of the well cover and the well seat are provided with a waterproof and impermeable coating layer, and the material of the waterproof and impermeable coating layer is methyl methacrylate with a thickness of 200 nm.

9. The multi-functional UHPC manhole cover device based on multi-layer structure according to any one of claims 1 to 8, characterized in that, The surface of the well cover is provided with a functional coating layer, which is an inorganic pigment coating layer, a fluorescent phase change material coating layer or a reflective material coating layer.

10. The multi-functional UHPC manhole cover device based on multi-layer structure according to any one of claims 1 to 8, characterized in that, The frame is a metal frame.

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