Rainwater grate for municipal road

Abstract

The utility model discloses a rainwater grate for municipal roads, which comprises an outer frame, a grate main body is arranged on the inner side of the outer frame, the outer frame and the grate main body are of an integrally formed casting structure, the grate main body comprises a material base layer, anti-corrosion layers are arranged inside and outside the material base layer, protective layers are arranged outside the anti-corrosion layers, and the protective layers are arranged on the outer side of the outer frame. The material base layer comprises a cast iron material layer. The spheroidal graphite cast iron has the advantages that the comprehensive performance of the spheroidal graphite cast iron is close to that of steel due to the arrangement of the material base layer, and the spheroidal graphite cast iron is successfully used for casting some parts with complex stress and high requirements for strength, toughness and abrasion resistance based on the excellent performance of the material base layer, has certain bearing capacity and is obtained through spheroidizing and inoculation treatment; the mechanical performance of cast iron is effectively improved, and particularly the plasticity and the toughness are improved, so that the strength higher than that of carbon steel is obtained, the use strength of the grate main body is improved, and the pressure resistance of the grate main body is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to rainwater grate relevant technical field, concretely is a rainwater grate for municipal road. BACKGROUND

[0002] In modern city planning, who is the drainage design time a very important work content, is directly related to the basic life of urban residents and the economic development of city, and plays a decisive role, is also an important representation of city construction level, in the city modernization construction pace is accelerating today, the drainage and sewage system of city often uses rainwater grate.

[0003] And the rainwater grate for municipal road at present, the compression resistance is poor, and the use intensity is low, and the rainwater grate is often pressed by the passing vehicles and can be damaged, can have certain security hidden danger, shortens the service life of rainwater grate. UTILITY MODEL CONTENT

[0004] The utility model discloses a rainwater grate for municipal road to solve the problem in the background art.

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

[0006] A rainwater grate for municipal road, including the outer frame, the outer frame inside is provided with the grate main part, the outer frame and grate main part are integrally formed cast structure, the grate main part includes material base layer, the material base layer inside and outside are provided with the corrosion -resistant layer, the corrosion -resistant layer outside is provided with the protective layer.

[0007] The material base layer includes cast iron material layer, the cast iron material layer outside is provided with alloy material layer, and the alloy material layer outside is provided with nodular cast iron layer.

[0008] The protective layer includes manganese alloy layer, and the manganese alloy layer outside is provided with a nickel-plated alloy layer.

[0009] Preferably, the outer frame lower end is installed with the positioning ring, and the positioning ring and the outer frame are integrally formed structure.

[0010] Preferably, the grate main part upper end center is provided with the positioning hole, the positioning hole number is three, and three are equally spaced annular distribution in the grate main part upper end center.

[0011] Preferably, the grate main part upper end is provided with V-shaped sewage groove, the V-shaped sewage groove number is several, and several V-shaped sewage grooves are equally spaced annular distribution in the grate main part upper end.

[0012] Preferably, the outer frame material and the grate main part material are same.

[0013] Preferably, the cast iron material layer has the same thickness as the ductile cast iron layer.

[0014] Compared with the prior art, the utility model has the beneficial effects that: through the setting of the material base layer, its comprehensive performance is close to steel, and based on its excellent performance, it has been successfully used for casting some parts with complex stress, high strength, toughness and wear resistance, has certain bearing capacity, is through spheroidization and inoculation treatment to obtain spheroidal graphite, effectively improves the mechanical property of cast iron, especially improves plasticity and toughness, thereby obtains higher strength than carbon steel, increases the use strength of the grate main body and improves the pressure resistance of the grate main body. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a front view structural schematic view of a rainwater grate for municipal roads of the utility model;

[0016] Figure 2 It is an outer frame and sewage pipe structure bottom view of a rainwater grate for municipal roads of the utility model;

[0017] Figure 3 It is a grate main body structure sectional view of a rainwater grate for municipal roads of the utility model;

[0018] Figure 4 It is a material base layer structure sectional view of a rainwater grate for municipal roads of the utility model;

[0019] Figure 5 It is a protective layer structure sectional view of a rainwater grate for municipal roads of the utility model.

[0020] In the drawing: 1, outer frame; 2, grate main body; 3, V-shaped sewage groove; 4, positioning hole; 5, material base layer; 51, cast iron material layer; 52, alloy material layer; 53, ductile cast iron layer; 6, corrosion-resistant layer; 7, protective layer; 71, manganese alloy layer; 72, nickel-plated alloy layer. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0022] Please refer to Figures 1-5The utility model provides a municipal road rainwater grate technical scheme: including the frame 1, the frame 1 inside is provided with grate main part 2, the frame 1 and grate main part 2 are integrally formed cast structure, and grate main part 2 includes material base layer 5, and material base layer 5 inside and outside are provided with anticorrosive layer 6, and anticorrosive layer 6 outside is provided with protective layer 7,

[0023] Material base layer 5 includes cast iron material layer 51, and cast iron material layer 51 outside is provided with alloy material layer 52, and alloy material layer 52 outside is provided with nodular cast iron layer 53.

[0024] Protective layer 7 includes manganese alloy layer 71, and manganese alloy layer 71 outside is provided with nickel plating alloy layer 72.

[0025] Further, the frame 1 lower end is provided with a positioning ring, and the positioning ring and the frame 1 are integrally formed, and the comprehensive performance of the cast iron material layer 51, the alloy material layer 52 and the nodular cast iron layer 53 is close to that of steel, and the excellent performance has been successfully used in casting some parts with complex stress, high strength, toughness and wear resistance, and the positioning ring has certain load-carrying capacity.

[0026] Further, a plurality of positioning holes 4 are formed in the center of the upper end of the grate main part 2, and the positioning holes 4 are equally and annularly distributed in the center of the upper end of the grate main part 2, the graphite is spherical by spheroidization and inoculation treatment, the mechanical properties of the cast iron are effectively improved, especially the plasticity and toughness are improved, so that the strength is higher than that of carbon steel, the use strength of the grate main part 2 is increased, and the pressure resistance of the grate main part 2 is improved.

[0027] Further, a plurality of V-shaped sewage slots 3 are arranged on the upper end of the grate main part 2, and the V-shaped sewage slots 3 are equally and annularly distributed on the upper end of the grate main part 2, the manganese alloy layer 71 has the effects of deoxidization, desulfurization and adjustment, and can increase the strength, toughness and hardenability of the steel, and is widely used in the process of steel and iron, the strength of the grate main part 2 is increased, and the service life of the grate main part 2 is improved.

[0028] Further, the frame 1 and the grate main part 2 are made of the same material, the nickel plating alloy layer 72 increases the corrosion resistance of the grate main part 2, and further increases the service life of the grate main part 2.

[0029] Further, the thickness of the cast iron material layer 51 is the same as that of the nodular cast iron layer 53, and the rainwater forms a vortex at the grate main part 2 through the V-shaped sewage slots 3, so that the flow rate of the rainwater is greatly improved, the vortex effect can drive the surrounding water to flow quickly to the grate main part 2 for drainage, and the drainage speed of the rainwater is improved.

[0030] It needs to be explained that the utility model is a kind of municipal road rainwater grate, through the setting of cast iron material layer 51, alloy material layer 52 and nodular cast iron layer 53, its comprehensive performance is close to steel, it is just based on its excellent performance, has been successfully used to cast some complex stress, strength, toughness, wear resistance requirement higher parts, with certain bearing capacity, it is through spheroidization and gestation processing to obtain spherical graphite, effectively improve the mechanical properties of cast iron, especially improve plasticity and toughness, to obtain higher strength than carbon steel, increase the use intensity of grate main body 2, improve the pressure resistance of grate main body 2, through the setting of manganese alloy layer 71, with deoxidization, desulfurization and adjusting effect, can also increase the strength, toughness, quenchability of steel, the application in steel and process is very extensive, increase the strength of grate main body 2, improve the service life of grate main body 2, through the setting of nickel alloy layer 72, increase the corrosion resistance of grate main body 2, further increase the service life of grate main body 2, rainwater forms vortex at grate main body 2 by V-shaped drain groove 3, greatly improve the flow rate of rainwater here, vortex effect can drive the water around fast flow to grate main body 2 and drain, improve the drainage speed of rainwater.

[0031] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A stormwater grate for municipal roads, characterised in that: Including the outer frame (1), the outer frame (1) inside is provided with the grate main part (2), the outer frame (1) and grate main part (2) are integrally formed cast structure, the grate main part (2) includes material base layer (5), the material base layer (5) inside and outside are provided with the corrosion-resistant layer (6), the corrosion-resistant layer (6) outside is provided with the protective layer (7); The material base layer (5) includes cast iron material layer (51), the cast iron material layer (51) outside is provided with alloy material layer (52), the alloy material layer (52) outside is provided with nodular cast iron layer (53); The protective layer (7) includes manganese alloy layer (71), the manganese alloy layer (71) outside is provided with nickel-plated alloy layer (72).

2. A rainwater grate for a municipal road according to claim 1, characterized in that: The outer frame (1) lower end is installed with the positioning ring, and the positioning ring and the outer frame (1) are integrally formed structure.

3. A rainwater grate for a municipal road according to claim 1, characterized in that: The grate main part (2) upper end center is provided with positioning hole (4), the positioning hole (4) number is three, and three are equally spaced annular distribution on the grate main part (2) upper end center.

4. A rainwater grate for a municipal road according to claim 1, characterized in that: The grate main part (2) upper end is provided with V-shaped pollution drainage groove (3), the V-shaped pollution drainage groove (3) number is several, and several V-shaped pollution drainage grooves (3) are equally spaced annular distribution on the grate main part (2) upper end.

5. The rainwater grate for a municipal road according to claim 1, wherein: The outer frame (1) material and grate main part (2) material are same.

6. A rainwater grate for a municipal road according to claim 1, characterized in that: The cast iron material layer (51) thickness and nodular cast iron layer (53) thickness are same.

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