CN214530789U

CN214530789U - Circular concrete prefabricated section anticreep cast iron well lid

Info

Publication number: CN214530789U
Application number: CN202022667048.1U
Authority: CN
Inventors: 沙镇嵩; 杨治晓; 夏芝贤
Original assignee: Rockhan Technology Co ltd
Current assignee: Rockhan Technology Co ltd
Priority date: 2020-11-18
Filing date: 2020-11-18
Publication date: 2021-10-29
Anticipated expiration: 2030-11-18

Abstract

The utility model relates to a circular concrete precast block anticreep cast iron well lid, including well lid frame and well lid board, the whole ring shape that is of well lid frame comprises mutually vertically annular riser and annular flat board, and the cross-section is perpendicular to shape, and the well lid board includes well lid board mainboard, annular supporting seat, typecasting platform and groined type gusset, and the well lid board mainboard includes loop configuration's riser and spherical surface structure's bottom plate, and the equipartition has groined type gusset and hook anchor round platform on the bottom plate, is equipped with the concrete hook anchor on the hook anchor round platform. The height of the groined rib plate in the manhole cover plate is lower than the height of the top surface of the manhole cover plate, the filled and solidified concrete blocks are higher than the groined rib plate, the concrete blocks positioned above the groined rib plate and the small concrete blocks divided by the groined rib plate are connected into a whole, and the overall strength of the concrete blocks is ensured. The concrete hook anchor is additionally arranged in the well cover plate, and the concrete block is fastened in the well cover plate by the concrete hook anchor, so that the concrete block cannot fall off easily, and the integrity and firmness of the concrete block and the well cover plate are improved.

Description

Circular concrete prefabricated section anticreep cast iron well lid

Technical Field

The utility model relates to an inspection shaft well lid field in the municipal facilities, concretely relates to circular concrete prefabricated section anticreep cast iron well lid.

Background

The concrete filled cast iron well lid is a well lid formed by making a well lid plate into a concave spherical structure and filling concrete in a concave cavity, and is gradually widely applied due to various excellent performances such as structural strength, anti-skid performance, light reflection effect and appearance.

A typical concrete filled cast iron manhole cover is shown in fig. 6:

the concrete-filled well lid comprises a well lid frame and a well lid plate, wherein the well lid frame is integrally in a ring shape and comprises mutually-perpendicular annular vertical plates and annular flat plates, the well lid plate comprises a well lid plate main plate, a groined rib plate and a typecasting platform, the well lid plate main plate structure is a concave spherical structure, a concave cavity is formed in the well lid plate, and the whole concave cavity forms a whole concrete-filled area. Be equipped with two liang of vertically crossing groined type gusset on the well lid board mainboard, highly and well lid board top surface parallel and level divide into 9 fritters with the concrete filled area, the top surface at well lid board center is equipped with square cast iron plate, and its downside forms an unsealed cavity, as the typecasting platform of placing the well lid sign.

In structural design, the well lid board mainboard designs into spherical structure, has better space power transmission performance to less component thickness forms bearing structure that bearing capacity is high, rigidity is big, and the deep floor that is equipped with in addition in the well lid board has further strengthened the bearing strength and the structural stability of well lid.

However, the above-mentioned cast iron manhole cover has the following problems in use:

1. the edge of the concrete block filled and solidified in the well cover plate forms a sharp slice, and the concrete block is easy to crack when being rolled and impacted by vehicles due to high brittleness.

2. The reinforcing rib plate falls into 9 fritters with the concrete in the well lid board, because there is the draft angle in groined type gusset to and there is the arc inclined plane at well lid board mainboard edge, the vehicle rolls the back for a long time, and the concrete piece is become flexible easily and break away from cast iron well lid, and the well lid pit of disappearance concrete piece becomes the hidden danger that threatens traffic safety.

3. The lower side of the typecasting platform with the existing structure is a cavity, so that in the casting production process, direct demolding cannot be performed, a special core needs to be manufactured, and the modeling complexity and the casting production difficulty of the well cover plate are increased.

SUMMERY OF THE UTILITY MODEL

To the defect that exists among the prior art, the utility model aims at providing a circular concrete precast block anticreep cast iron well lid aims at solving following problem:

1. the solidified concrete blocks form sharp slices at the edge of the well cover plate, so that the well cover plate is easy to crack and break;

2. the concrete blocks are divided into 9 small blocks by the reinforcing rib plates, and after the well cover is in service for a long time, the concrete small blocks are easy to loosen and separate from the cast iron well cover;

3. the typecasting platform structure in the well lid needs to make special core casting, has increased the casting degree of difficulty and the manufacturing cost of well lid.

In order to achieve the above purpose, the utility model adopts the technical proposal that:

the utility model provides a circular concrete prefabricated section anticreep cast iron well lid, includes: well lid frame 1 and well lid board 2, well lid frame 1 is whole to be the ring shape, comprises mutually perpendicular annular riser and annular flat board, and the cross-section is the shape of perpendicular to, well lid board 2 includes: well lid board mainboard 3, annular supporting seat 4, typefounding platform 5 and groined type gusset 8, well lid board mainboard 3 includes annular structure's riser 6 and spherical surface structure's bottom plate 7, and the equipartition has groined type gusset 8 and hook anchor round platform 9 on the bottom plate 7, is equipped with concrete hook anchor 10 on the hook anchor round platform 9.

On the basis of the scheme, the whole concave cavity from the bottom surface of the bottom plate 7 to the top surface of the well cover plate 2 forms a concrete filling area.

The top surface of the bottom plate 7 is the main bearing surface of the well cover plate 2, and the design of a spherical structure is adopted, so that the structure has the characteristics of strong bearing capacity and high rigidity;

on the basis of the scheme, the vertical plate 6 is an annular vertical part at the inner side edge of the well cover plate 2 and is vertically tangent to the outer side of the bottom plate 7.

On the basis of the scheme, the groined rib plates 8 are composed of 4 reinforcing rib plates which are vertically intersected in pairs, the height of each groined rib plate 8 from the top surface of the groined cover plate 2 is about half of the height of each vertical plate 6, the groined rib plates 8 divide the concrete filling area into 9 small filling areas, the 9 small filling areas are used for filling concrete, and after the filled concrete is solidified, concrete blocks located above the groined rib plates 8 and concrete blocks located in the 9 small filling areas are connected into a whole due to the fact that the height of each groined rib plate 8 is lower than the top surface of the groined cover plate 2.

On the basis of the scheme, the number of the hook-and-anchor round tables 9 is 8, the hook-and-anchor round tables are distributed in 8 small filling areas on the periphery of the groined rib plate 8, the top surfaces of the hook-and-anchor round tables 9 are provided with concrete hook anchors 10, the concrete hook anchors 10 are of L-shaped structures and used for fixing concrete blocks, after concrete is filled, the concrete hook anchors 10 are solidified in the concrete blocks and integrated with the concrete blocks, and under the combined action of the 8 concrete hook anchors 10, the whole concrete block is fixed in the well cover plate 2.

On the basis of the scheme, the typecasting platform 5 is an annular platform with a groove structure, is located on the top surface of the well cover plate 2 and is used for setting well cover marks, the inner side of the typecasting platform 5 is provided with the vertical plate 6, the outer side of the typecasting platform is provided with the annular supporting seat 4, the inner side and the outer side of the typecasting platform 5 are both of a closed structure, and a semi-closed cavity does not exist, so that a special core does not need to be manufactured during casting production.

On the basis of the scheme, the concrete hook anchor 10 has two design schemes, wherein one scheme is that a steel bar bent into an L-shaped structure is placed in a casting sand mold; the other is to drill a hole on the hook anchor round table 9 and screw and install a bent bolt.

The utility model has the advantages that:

1. because the height of the groined rib plate in the manhole cover plate is lower than the height of the top surface of the manhole cover plate, the filled and solidified concrete block is higher than the groined rib plate, the concrete block positioned above the groined rib plate and the small concrete block divided by the groined rib plate are connected into a whole, and the integral strength of the concrete block is ensured.

2. The concrete hook anchor is additionally arranged in the well cover plate, and the concrete block is fastened in the well cover plate by the concrete hook anchor, so that the concrete block cannot fall off easily, and the integrity and firmness of the concrete block and the well cover plate are improved.

3. Well lid inboard side is equipped with annular riser, forms annular side after the concrete is filled, makes concrete piece edge possess enough thickness, can not rolled easily cracked, has improved concrete piece edge structural strength.

4. The inner side and the outer side of the typecasting platform are of a closed structure, so that the use of special cores for casting is avoided, the modeling difficulty is reduced, and the production cost is saved.

Drawings

The utility model discloses there is following figure:

FIG. 1 is a perspective view of a well lid;

FIG. 2 is a perspective view of a partial cross-section of a well cover plate;

FIG. 3 is a cross-sectional view of FIG. 2;

FIG. 4 is an enlarged view of a portion of FIG. 2;

FIG. 5 is a schematic view of a concrete filling section of a well cover plate;

FIG. 6 is a schematic view of a typical concrete filled cast iron manhole cover;

in the figure: 1. well lid frame 2, well lid board 3, well lid board mainboard 4, annular supporting seat 5, typecast platform 6, riser 7, bottom plate 8, groined gusset 9 hook anchor round platform, 10, concrete hook anchor 11, concrete block

Detailed Description

The present invention will be described in further detail with reference to fig. 1 to 5.

As shown in fig. 1-5, a round concrete precast block anti-drop cast iron well lid comprises a well lid frame 1 and a well lid plate 2 which are made of cast iron.

The well cover plate 2 includes: well lid board mainboard 3, annular supporting seat 4, typefounding platform 5 and groined type gusset 8, well lid board mainboard 3 includes annular structure's riser 6 and spherical surface structure's bottom plate 7, and the equipartition has groined type gusset 8 and hook anchor round platform 9 on the bottom plate 7, is equipped with concrete hook anchor 10 on the hook anchor round platform 9.

The bottom plate 7 is of a spherical structure, the whole concave cavity from the bottom surface to the top surface of the well cover plate 2 forms a concrete filling area, and the top surface of the bottom plate 7 is a main bearing surface of the well cover plate 2 and is designed by adopting the spherical structure; the vertical plate 6 is an annular vertical part at the inner side of the well cover plate 2 and is vertically tangent with the outer side of the spherical shell type bottom plate 7.

The groined rib plate 8 is composed of 4 reinforcing rib plates which are vertically intersected with each other, the height of the groined rib plate 8 from the top surface of the groined cover plate 2 is about half of the height of the vertical plate 6, the groined rib plate 8 divides the concrete filling area into 9 small filling areas, the 9 small filling areas are used for filling concrete, and after the filled concrete is solidified, concrete blocks above the groined rib plate 8 and concrete blocks in the 9 small filling areas are connected into a whole, namely the concrete block 11 shown in fig. 5, because the height of the groined rib plate 8 is lower than the top surface of the groined cover plate 2.

The anchor circular platform 9 is provided with 8 anchor blocks which are distributed in 8 small filling areas around the groined rib plate 8, concrete anchors 10 are arranged on the anchor circular platform, the concrete anchors 10 are of L-shaped structures and used for fixing concrete blocks, after concrete is filled, the concrete anchors 10 are solidified in the concrete blocks and integrated with the concrete blocks, and under the combined action of the 8 concrete anchor blocks 10, the whole concrete block is fixed in the well cover plate 2.

The typecasting platform 5 is the annular platform of groove structure, is located the top surface of well cover board 2 for set up the well lid sign, the inboard of typecasting platform 5 is riser 6, and the outside is annular supporting seat 4, and the inside and outside of typecasting platform 5 is enclosed construction, does not have semi-enclosed cavity, so when casting production, need not make special core.

The concrete hook anchor 10 has two design schemes, and usually, bent reinforcing steel bars are arranged in a sand mould and integrated with cast iron after casting; in addition, the hook anchor round platform can be drilled and tapped, and a bolt is screwed and bent to be used as a hook anchor.

The utility model discloses a key point and protection point in advance:

1: well font gusset is less than well lid board top surface height in the well lid board, makes the concrete piece that solidifies can link into an organic whole, has improved concrete piece bulk strength, and well lid board mainboard annular riser is vertical tangent with spherical shell type bottom plate, has avoided the concrete piece that solidifies to form sharp-pointed thin slice, has guaranteed concrete piece bulk thickness, has strengthened concrete piece edge structural strength.

2: the well cover plate is internally fixed with 8 concrete hook anchors with L-shaped structures for fixing concrete blocks, and the concrete hook anchors have two design forms, wherein one form is to place and bend reinforcing steel bars with L-shaped structures on a casting sand mold, and the other form is to drill holes on a hook anchor platform and screw and install bent bolts.

3: the typecasting platform is established at well lid board top surface, for groove structure's annular platform, and the unclosed cavity does not exist in typecasting platform inside and outside, only needs the upper and lower type of design well lid board mould, need not make extra core.

Those not described in detail in this specification are within the skill of the art.

Claims

1. The utility model provides a circular concrete prefabricated section anticreep cast iron well lid which characterized in that includes: well lid frame (1) and well lid board (2), well lid frame (1) wholly is the ring shape, comprises mutually perpendicular annular riser and annular flat board, and the cross-section is the shape of perpendicular to, well lid board (2) include: well lid board mainboard (3), annular supporting seat (4), typecasting platform (5) and groined type gusset (8), well lid board mainboard (3) are including annular structure's riser (6) and spherical structure's bottom plate (7), riser (6) are the annular vertical portion of the inboard edge of well lid board (2), and are vertical tangent with the outside of bottom plate (7), and the equipartition has groined type gusset (8) and hook anchor round platform (9) on bottom plate (7), is equipped with concrete hook anchor (10) on hook anchor round platform (9), typecasting platform (5) are groove structure's annular platform, are located the top surface of well lid board (2) for set up the well lid sign, the inboard of typecasting platform (5) is riser (6), and the outside is annular supporting seat (4), and the inside and outside of typecasting platform (5) is enclosed construction.

2. The round concrete precast block anti-drop cast iron well lid as claimed in claim 1, characterized in that the whole concave cavity from the bottom surface of the bottom plate (7) to the top surface of the well lid plate (2) forms a concrete filling area.

3. The round concrete precast block anti-drop cast iron well lid according to claim 2, characterized in that the groined rib plates (8) are composed of 4 reinforcing rib plates which are vertically intersected in pairs, the height of the groined rib plates (8) from the top surface of the groined cover plate (2) is half of the height of the vertical plate (6), the groined rib plates (8) are used for dividing the concrete filling area into 9 small filling areas, and the 9 small filling areas are used for filling concrete.

4. The round concrete precast block anti-drop cast iron well lid according to claim 3, characterized in that the number of the anchor hooking round tables (9) is 8, the anchor hooking round tables are distributed in 8 small block filling areas around the groined rib plate (8), the top surfaces of the anchor hooking round tables (9) are provided with concrete anchors (10), and the concrete anchors (10) are L-shaped structures and used for fixing concrete blocks.

5. The round concrete precast block anti-drop cast iron well lid as claimed in claim 4, characterized in that the concrete hook anchor (10) has two design schemes, one is to place the steel bar bent into L-shaped structure in the casting sand mold; the other is to drill a hole on the hook anchor round table (9) and screw and install a bent bolt.