A casting device for assembled street crossing

Abstract

The present invention discloses a casting device for an assembled pedestrian crossing, which includes a support seat, a column mold and a top beam mold; the bottom edge of the column mold is fitted and corresponding to the support seat, and one side of the top of the column mold is fastened to one end of the top beam mold. The column mold is used to cast the columns on both sides of the box culvert, i.e., the walls, and the top beam mold is used to cast the top wall and the ground of the box culvert. Each adjacent plate can be fastened and connected by bolts or clamped and positioned by a clamp. The positioning method can be selected as needed, and the operation is convenient. The present invention has a reasonable structure, does not require repeated disassembly and assembly, can adapt to the casting operations of box culverts of different spans and sizes, and solves the technical problems of the existing technology that the molds are not versatile, the work efficiency is low, and the product quality standards are inconsistent.

Description

Technical Field

[0001] The invention belongs to the technical field of street crossing casting devices, and in particular relates to a casting device for an assembled street crossing. Background Art

[0002] With the development of society and economic progress, people's living standards and quality of life are gradually improving. Street crossings have brought many conveniences to people's daily travel. In places with large traffic flow or complex traffic congestion, street crossings can increase the passing rate and reduce congestion. Street crossings are made of steel-concrete frames, with an internal height of 3.5-4.5 meters, that is, the top frame and the bottom frame are staggered to form a cylindrical structure. The top frame and the bottom frame are commonly known as box culverts.

[0003] At present, the pouring process of box culverts is very complicated. The general process is to first set up scaffolding, splice the templates into the outer contour of the street crossing, and then pour concrete after tightening the whole. Since the size of the box culvert will change according to the road conditions of the target section, but the splicing size of the template is fixed, it is impossible to pour box culverts of different sizes. Templates of different sizes must be used to reassemble and use. Therefore, there are many types of templates and no compatibility.

[0004] Secondly, the box culvert is large in size and the template splicing process is cumbersome. In order to ensure product quality, there are many fixing accessories between the templates to ensure the firmness of the connection between the templates and to ensure that the box culvert is regular in size after casting. However, after casting, the template still needs to be disassembled and the internal contact surface cleaned before reassembly. The constant disassembly and assembly of many fixed connectors increases the time cost and labor cost of the construction process. It takes about 5-7 days to cast a box culvert. The long construction period and low efficiency will also have a greater time impact on the later road construction cycle.

[0005] In addition, it is difficult to ensure the standard uniformity of mold dimensions due to repeated manual disassembly and assembly of the template. In order to ensure product quality, a lot of time is required for measurement and adjustment, and human errors are difficult to avoid. Summary of the invention

[0006] The purpose of the present invention is to solve the technical problems of the prior art that the molds are not versatile, the working efficiency is low and the product quality standards are inconsistent, and to provide a casting device for an assembled street crossing to overcome the shortcomings of the prior art.

[0007] In order to achieve the above object, the technical solution adopted by the present invention is:

[0008] A casting device for an assembled street crossing comprises a support seat, a column mold and a top beam mold; the bottom edge of the column mold is fitted and corresponding to the support seat, and one side of the top end of the column mold is tightly connected to one end of the top beam mold;

[0009] The column mold comprises a column left side plate, a column right side plate, a column front panel and a column rear panel; the column front panel and the column rear panel are mirror images of each other, and the same side of the column front panel and the column rear panel are rotatably connected to each other through a support arm and a rotating shaft provided on the support seat; the front and rear side edges of the column left side plate are respectively fitted and connected to the inner opposite surfaces of the column front panel and the column rear panel; the front and rear side edges of the column right side plate are respectively fitted and connected to the inner opposite surfaces of the column front panel and the column rear panel;

[0010] The top beam mold includes a top beam bottom panel, a top beam front panel and a top beam rear panel; the top beam front panel and the top beam rear panel are mirror images of each other, and the bottom edges of the top beam front panel and the top beam rear panel are rotatably connected to the top beam bottom panel through a rotating shaft; the vertical edges on both sides of the top beam front panel and the top beam rear panel are respectively fastened to the vertical edges of the column front panel and the column rear panel.

[0011] In order to facilitate the casting of multi-channel box culverts, partition wall molds are provided between the column molds; the partition wall mold includes a left side plate, a right side plate, a front panel and a rear panel; the bottom edges of the left side plate, the right side plate, the front panel and the rear panel are respectively fastened to the support seats, and the top edges of the left side plate, the right side plate, the front panel and the rear panel are respectively connected to the bottom panel of the top beam of the top beam mold.

[0012] In order to increase the length of the top beam mold, the top beam bottom panel, the top beam front panel and the top beam rear panel are respectively formed by a plurality of splicing plates that are fastened end to end to each other by fastening bolts.

[0013] In order to facilitate the lateral opening and closing of the right side plate of the column and thus facilitate the demoulding of the box culvert, the top edge of the right side plate of the column and the bottom panel of the top beam present an integrated flexible bending structure; the bottom of the right side plate of the column is connected to the support seat through an adjusting screw, and the right side plate of the column moves longitudinally in a fan shape with its top end as the center under the action of the adjusting screw.

[0014] In order to facilitate the sliding opening and closing of the left side plate of the column and thus facilitate the demoulding of the box culvert, a transverse bottom rail is fixedly provided at the bottom end of the left side plate of the column, and the transverse bottom rail and the fixed pulley provided in the support seat are transversely slidably connected to each other; a limit sleeve is provided in the support seat and is slidably connected to the transverse bottom rail.

[0015] In order to improve the stable support of the top beam mold casting process, the top end of the top beam front panel and the top end of the top beam rear panel are positioned and connected to each other through a connecting rod.

[0016] In order to facilitate the adjustment of the casting height of the columns on both sides of the box culvert, a supporting pad corresponding to the inner diameter is provided at the bottom of the column mold.

[0017] In order to improve the stable support of the top beam mold casting process, the top beam bottom panel is tightly connected to the support seat.

[0018] In order to facilitate climbing operations, a ladder is provided on the outer side of the left side plate of the column.

[0019] The beneficial effects of the present invention are:

[0020] The column mold is used to cast the columns on both sides of the box culvert, i.e., the walls, and the top beam mold is used to cast the top wall and the ground of the box culvert; the span of the box culvert, i.e., the length of the top beam mold, can be adjusted by extending or shortening the span length; there is no specific requirement for the width of the box culvert, and the box culvert can be connected from end to end during construction; the width of the walls on both sides of the box culvert, i.e., the columns, can be adjusted by the left side plate of the column, i.e., the greater the spacing between the left side plate of the column and the right side plate of the column, the greater the thickness of the wall, and vice versa; the height of the walls on both sides of the box culvert can be adjusted by the supporting pads in the column mold, i.e., the greater the number of supporting pads, the lower the height of the column after casting; the use of the present invention can cast box culverts of different spans and sizes, and has strong adaptability and expanded functionality.

[0021] The left side plate of the column and the right side plate of the column are rotatably connected to each other through the support arms and the rotating shafts provided on the support base, and can be opened and closed in a fan shape similar to a door, which is convenient for operation and construction; the left side plate of the column can slide horizontally within a limited position, and the right side plate of the column can be opened and closed in a fan shape longitudinally, without repeated disassembly, and can be operated and constructed separately, which can also facilitate demoulding.

[0022] Each adjacent plate can be connected by bolts or clamped in place by clamps. The positioning method can be selected according to needs, and the operation is convenient.

[0023] The invention has a reasonable structure, does not need to be repeatedly disassembled and assembled, can adapt to the pouring operation of box culverts with different spans and sizes, and solves the technical problems of the prior art that the mold has no compatibility, the work efficiency is low, and the product quality standards are inconsistent. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic front view of the structure of the present invention.

[0025] Figure 2 It is a schematic structural front view of the column mold in the present invention.

[0026] Figure 3 It is a schematic structural front view of the top beam mold in the present invention.

[0027] Figure 4 It is a schematic diagram of the box culvert structure after casting of the present invention.

[0028] In the figure, 1 - support seat 101 - fixed pulley 102 - rotating shaft 2 - column mold 201 - horizontal bottom rail 202 - column left side plate 203 - column front panel 204 - support arm 205 - column right side plate 206 - distance adjusting screw 3 - top beam mold 301 - top beam front panel 302 - top beam bottom panel 303 - connecting rod. DETAILED DESCRIPTION

[0029] The following will be combined Figures 1 to 4 The technical solution of the present invention is described clearly and completely. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Reference Figures 1 to 4 The present invention comprises a support seat 1, a column mold 2 and a top beam mold 3; the bottom edge of the column mold 2 is fitted and corresponds to the support seat 1, and the top side of the column mold 2 is fastened to one end of the top beam mold 3;

[0031] The column mold 2 includes a column left side plate 202, a column right side plate 205, a column front panel 203 and a column rear panel; the column front panel 203 and the column rear panel are mirror images of each other, and the same side of the column front panel 203 and the column rear panel are rotatably connected to the rotating shaft 102 provided on the support seat 1 through the support arm 204; the front and rear side edges of the column left side plate 202 are respectively connected to the inner opposite sides of the column front panel 203 and the column rear panel; the front and rear side edges of the column right side plate 205 are respectively connected to the inner opposite sides of the column front panel 203 and the column rear panel;

[0032] The top beam mold 3 includes a top beam bottom panel 302, a top beam front panel 301 and a top beam rear panel; the top beam front panel 301 and the top beam rear panel are mirror images of each other, and the bottom edges of the top beam front panel 301 and the top beam rear panel are rotatably connected to the top beam bottom panel 302 via a rotating shaft; the vertical edges on both sides of the top beam front panel 301 and the top beam rear panel are respectively fastened to the vertical edges of the column front panel 203 and the column rear panel.

[0033] In order to facilitate the casting of multi-channel box culverts, a partition wall mold is provided between the column molds 2; the partition wall mold includes a left side plate, a right side plate, a front panel and a rear panel; the bottom edges of the left side plate, the right side plate, the front panel and the rear panel are respectively fastened to the support seat, and the top edges of the left side plate, the right side plate, the front panel and the rear panel are respectively interpenetrated with the top beam bottom panel 302 of the top beam mold 3. When it is necessary to cast a box culvert with a partition wall in the middle, a partition wall mold can be added, and the structure of the partition wall mold is the same as that of the column mold.

[0034] In order to increase the length of the top beam mold, the top beam bottom panel 302, the top beam front panel 301 and the top beam rear panel are respectively formed by a plurality of splicing plates that are spliced ​​end to end by fastening bolts. The length of the box culvert can be adjusted by setting the number of splicing plates.

[0035] In order to facilitate the lateral opening and closing of the right side plate of the column and thus facilitate the demoulding of the box culvert, the top edge of the right side plate 205 of the column and the bottom plate 302 of the top beam are in an integrated flexible bending structure; the bottom of the right side plate 205 of the column is connected to the support seat 1 through the pitch adjusting screw 206, and the right side plate 205 of the column moves longitudinally in a fan shape with its top as the center under the action of the pitch adjusting screw 206. When the right side plate of the column is opened longitudinally in a fan shape, it is convenient to lift and disassemble the box culvert from the top.

[0036] In order to facilitate sliding opening and closing of the left side plate of the column and thus facilitate demoulding of the box culvert, a transverse bottom rail 201 is fixedly provided at the bottom end of the left side plate 202 of the column, and the transverse bottom rail 201 is slidably connected to the fixed pulley 101 provided in the support seat 1; a limit sleeve slidably connected to the transverse bottom rail 201 is provided in the support seat 1. When the left side plate of the column slides out transversely, it is convenient for personnel to enter for cleaning and maintenance and also convenient for demoulding of the box culvert.

[0037] In order to improve the stability of the top beam mold casting process, the top of the top beam front panel 301 and the top of the top beam rear panel are positioned and connected to each other through a connecting rod 303. It can effectively prevent the pressure of internal casting from squeezing and deforming the top beam front panel and the top beam rear panel.

[0038] In order to adjust the pouring height of the columns on both sides of the box culvert, a support pad corresponding to the inner diameter is provided at the bottom of the column mold 1. The more the number of support pads, the less the amount of concrete poured, and the lower the height of the box culvert.

[0039] In order to improve the stability of the top beam mold casting process, the top beam bottom panel 302 is tightly connected to the support seat 1.

[0040] In order to facilitate climbing operations, a ladder is provided on the outer side of the left side plate 202 of the column.

[0041] The column mold in the present invention is used to cast the columns on both sides of the box culvert, i.e., the walls, and the top beam mold is used to cast the top wall and the ground of the box culvert. The span of the box culvert, i.e., the length of the top beam mold, can be adjusted by extending or reducing the span length. There is no specific requirement for the width of the box culvert, and the box culvert can be connected from end to end during construction. The width of the walls on both sides of the box culvert, i.e., the columns, can be adjusted by the left side plate of the column, i.e., the greater the spacing between the left side plate of the column and the right side plate of the column, the greater the thickness of the wall, and vice versa. The height of the walls on both sides of the box culvert can be adjusted by the support pads in the column mold, i.e., the greater the number of support pads, the lower the height of the column after casting.

[0042] The present invention can be used to cast box culverts of different spans and sizes, and has strong adaptability and expanded functionality. The overall depth of the box culvert is uniform, and the differences in size are: the thickness and height of the column and the thickness and length of the top beam. The thickness of the column is determined by the distance between the left plate of the column and the right plate of the column, and is specifically determined by adjusting the lateral movement distance of the left plate of the column. The height of the column is determined by stacking different numbers of support pads at the bottom, and the more support pads are stacked, the lower the height after casting. The thickness of the top beam can be determined by the amount of concrete poured; the length of the top beam can be adjusted by increasing the number of splicing plates.

[0043] The left side plate of the column and the right side plate of the column are rotatably connected to each other through the support arm and the rotating shaft provided on the support seat, and can be opened and closed in a fan-shaped manner similar to a door for easy operation and construction. The left side plate of the column can slide horizontally and the right side plate of the column can be opened and closed in a fan-shaped manner longitudinally, without repeated disassembly, and can be operated and constructed separately, which can also facilitate demoulding.

[0044] Each adjacent plate can be fastened with bolts or positioned by clamping with plywood. The positioning method can be selected according to needs, which is easy to operate. Different accessory openings can be set on the plate to facilitate the pre-embedding of different accessories, which is determined by actual operation requirements. After the plates are butt-jointed, the gap is sealed with sealant to prevent leakage during the pouring process. After the pouring is completed, the corresponding plates are loosened and the box culvert is lifted with a crane. When pouring a box culvert with a middle partition wall, a partition wall mold can be added. The structure of the partition wall mold is the same as that of the column mold. The box culvert after pouring is a two-way channel structure with a partition wall in the middle.

[0045] The invention has a reasonable structure, does not need to be repeatedly disassembled and assembled, can adapt to the pouring operation of box culverts with different spans and sizes, and solves the technical problems of the prior art that the mold has no compatibility, the work efficiency is low, and the product quality standards are inconsistent.

[0046] The above description is only a specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a technician familiar with the technical field within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention.

Claims

1. A casting device for an assembled street crossing, characterized by: It comprises a support seat (1), a column mould (2) and a top beam mould (3); the bottom edge of the column mould (2) is fitted and corresponds to the support seat (1), and the top side of the column mould (2) is tightly connected to one end of the top beam mould (3); The column mold (2) comprises a column left side plate (202), a column right side plate (205), a column front panel (203) and a column rear panel; the column front panel (203) and the column rear panel are mirror images of each other, and the same side of the column front panel (203) and the column rear panel are rotatably connected to the rotating shaft (102) provided on the support seat (1) through the support arm (204); the front and rear side edges of the column left side plate (202) are respectively connected to the inner opposite sides of the column front panel (203) and the column rear panel; the front and rear side edges of the column right side plate (205) are respectively connected to the inner opposite sides of the column front panel (203) and the column rear panel; The top beam mould (3) comprises a top beam bottom panel (302), a top beam front panel (301) and a top beam rear panel; the top beam front panel (301) and the top beam rear panel are mirror images of each other, and the bottom edges of the top beam front panel (301) and the top beam rear panel are rotatably connected to the top beam bottom panel (302) via a rotating shaft; the vertical edges of the top beam front panel (301) and the top beam rear panel are respectively fastened to the vertical edges of the column front panel (203) and the column rear panel.

2. A casting device for an assembled street crossing according to claim 1, characterized in that A partition wall mold is provided between the column molds (2); the partition wall mold comprises a partition wall left side plate, a partition wall right side plate, a partition wall front panel and a partition wall rear panel; the bottom edges of the partition wall left side plate, the partition wall right side plate, the partition wall front panel and the partition wall rear panel are respectively fastened to the support seat, and the top edges of the partition wall left side plate, the partition wall right side plate, the partition wall front panel and the partition wall rear panel are respectively interlinked with the top beam bottom panel (302) of the top beam mold (3).

3. A casting device for a prefabricated street crossing according to claim 1, characterized in that The top beam bottom panel (302), the top beam front panel (301) and the top beam rear panel are respectively formed by a plurality of splicing panels being spliced ​​end to end with each other via fastening bolts.

4. A casting device for a prefabricated street crossing according to claim 1, characterized in that The top edge of the right side plate (205) of the column and the bottom plate (302) of the top beam form an integrated flexible bending structure; the bottom of the right side plate (205) of the column is connected to the support seat (1) via a pitch-adjusting screw (206), and the right side plate (205) of the column moves longitudinally in a fan-shaped manner with its top end as the center under the action of the pitch-adjusting screw (206).

5. The pouring device for a prefabricated street crossing according to claim 1, characterized in that A transverse bottom rail (201) is fixedly provided at the bottom end of the left side plate (202) of the upright column, and the transverse bottom rail (201) and a fixed pulley (101) provided in the support seat (1) are mutually slidably connected transversely; a limiting sleeve is provided in the support seat (1) and is slidably connected to the transverse bottom rail (201).

6. A casting device for a prefabricated street crossing according to claim 1, characterized in that The top end of the top beam front panel (301) and the top end of the top beam rear panel are positioned and connected to each other via a connecting rod (303).

7. The pouring device for a prefabricated street crossing according to claim 1, characterized in that The bottom of the column mould (2) is provided with a supporting pad which fits the inner diameter thereof.

8. The pouring device for a prefabricated street crossing according to claim 1, characterized in that The top beam bottom panel (302) is firmly connected to the support seat (1).

9. The pouring device for a prefabricated street crossing according to claim 1, characterized in that A ladder is provided on the outer side of the left side plate (202) of the upright column.

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