Steel formwork for shaping prefabricated pipe ditch cover plate

Abstract

The utility model belongs to the technical field of precast concrete cover plate forming, and relates to a steel formwork for forming a precast pipe ditch cover plate, which comprises a forming bottom tire, hinged plates, side formwork steel plates and opposite-pull screws, the hinged plates are uniformly distributed on the peripheral side walls of the forming bottom tire at intervals, each hinged plate is provided with a hinged hole, and the opposite-pull screws are connected with the hinged holes. The hinge plates on the periphery are rotationally connected with side die steel plates through pin shafts, opposite-pull connecting holes are formed in the upper ends of the side die steel plates at intervals, opposite-pull screws are installed in the opposite opposite-pull connecting holes in a penetrating mode, and gaskets and nuts are assembled at the two ends of each opposite-pull screw. The forming bottom tire comprises a mounting groove, a bottom die steel plate, hydraulic cylinders and guide columns, the guide columns are evenly distributed on the periphery of the interior of the mounting groove at intervals, the hydraulic cylinders for driving the bottom die steel plate to ascend and descend are arranged in the middle of the interior of the mounting groove at intervals, and the periphery of the bottom of the bottom die steel plate is supported on the guide columns. The device has the advantages of being convenient to assemble, capable of guaranteeing the forming quality of the cover plate, labor-saving and easy to implement.

Description

Technical Field

[0001] The utility model belongs to the technical field of prefabricated concrete cover plate molding, and relates to a steel template, in particular to a steel template used for molding prefabricated trench cover plates. Background Art

[0002] In various construction projects, precast concrete trench covers are relatively common prefabricated semi-finished materials. They are quick to install, can be prefabricated in advance, and can shorten construction periods, making them widely used in projects.

[0003] At present, precast concrete trench covers are formed in forming templates, which are manually assembled on site. During the assembly process, the fineness of manual assembly will affect the assembly of the forming templates, which often results in defects such as uneven lines of prefabricated panels. At the same time, when assembling the forming templates, four to five construction workers are needed to install and splice them, which is labor-intensive. In addition, depending on the load carried, covers of different thicknesses need to be adapted at the trench, and the current steel templates cannot control the thickness of the cast cover. Summary of the invention

[0004] The utility model aims to provide a steel template for prefabricated trench cover plate shaping, which has a scientific and reasonable structural design, is easy to assemble, ensures the quality of cover plate molding, saves manpower and effort, can adjust the casting thickness of the cover plate, and is easy to implement.

[0005] The utility model solves the technical problem through the following technical solutions:

[0006] A steel formwork for shaping prefabricated trench cover plates, characterized in that it comprises a forming base, a hinge plate, a side form steel plate and a tension screw rod, the hinge plates are evenly spaced on the side walls of the forming base, each hinge plate is provided with a hinge hole, the side form steel plates are rotatably connected to the hinge plates on the four sides through a pin shaft, tension connection holes are spaced at intervals on the upper ends of each side form steel plate, tension screw rods are installed on the opposite tension connection holes, and washers and nuts are installed at both ends of each tension screw rod;

[0007] The molding base tire includes a mounting groove, a bottom mold steel plate, a hydraulic cylinder and a guide column. The guide columns are evenly spaced around the inside of the mounting groove. A hydraulic cylinder for driving the bottom mold steel plate to rise and fall is arranged at intervals in the middle of the mounting groove. The bottom of the bottom mold steel plate is supported on the guide columns.

[0008] Moreover, it also includes stop-slurry strips, which are arranged around the bottom mold steel plate.

[0009] Moreover, the side form steel plate includes a plate body, transverse ribs, vertical ribs and connecting ears. Transverse ribs arranged opposite to each other up and down are welded on the outer side surface of the plate body, vertical ribs are evenly spaced between the two transverse ribs, and connecting ears opposite to the hinged plates are spaced at intervals at the bottom of the plate body, and perforations are provided on the connecting ears.

[0010] Moreover, a release agent is applied on the upper end surface of the bottom mold steel plate.

[0011] The advantages and beneficial effects of the utility model are:

[0012] This steel template used for shaping the prefabricated trench cover is easy to disassemble and assemble. When in use, the depth of the steel template can be adjusted according to the thickness of the cover to be formed, which is convenient for use. After the steel template is formed, it is standardized and can effectively solve the problem of the finished panel line being crooked due to the workers' inadequate assembly of the template. At the same time, it reduces the use of manpower. Only two to three people are needed to install and disassemble this shaped steel template. The operation is simple and fast, and the construction quality is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model in the open state of the side form steel plate (the front and rear side form steel plates are omitted);

[0014] Figure 2 This is a schematic diagram of the structure of the utility model after assembly (the front and rear side mold steel plates are omitted);

[0015] Figure 3 It is a structural schematic diagram of the side form steel plate of the utility model.

[0016] Reference numerals

[0017] 1- tension connection hole, 2- side form steel plate, 3- vertical ribs, 4- horizontal ribs, 5- hinged plate, 6- telescopic column, 7- sleeve, 8- connection block, 9- hydraulic cylinder, 10- bottom form steel plate, 11- stop slurry strip, 12- tension screw, 13- plate body, 14- connection ear, 15- installation groove. DETAILED DESCRIPTION

[0018] The present invention will be further described in detail below through specific embodiments. The following embodiments are merely descriptive and not restrictive, and the protection scope of the present invention cannot be limited by them.

[0019] A steel formwork for shaping prefabricated trench covers, the innovation of which lies in: comprising a forming base, a hinged plate 5, a side form steel plate 2 and a tension screw 12, hinged plates are evenly spaced on the side walls around the forming base, hinged holes are provided on each hinged plate, side form steel plates are rotatably connected to the hinged plates around the sides through pins, tension connection holes 1 are spaced on the upper end of each side form steel plate, tension screws are installed on the opposite tension connection holes, gaskets and nuts are installed at both ends of each tension screw, and a release agent is applied on the base steel plate to facilitate the grooving of the finished component.

[0020] The molding base tire includes a mounting groove 15, a bottom mold steel plate 10, a hydraulic cylinder 9 and a guide column. The guide columns are evenly spaced around the inside of the mounting groove. The guide column is composed of a sleeve 7 and a telescopic column 6 that is retracted and extended by a spring in the sleeve. A hydraulic cylinder 9 for driving the bottom mold steel plate to rise and fall is arranged at a middle interval in the mounting groove. The cylinder rod of the hydraulic cylinder is connected to the connecting block 8 at the bottom of the bottom mold steel plate, and the bottom of the bottom mold steel plate is supported on the guide columns around.

[0021] The bottom mold steel plate is in the shape of the prefabricated trench cover plate to be cast, that is, it is composed of a middle horizontal part, an inclined connecting part and an end horizontal part, and the end horizontal parts are arranged at both ends of the middle horizontal part through the inclined connecting parts. Guide columns are evenly spaced at the bottom of the end horizontal part along its length direction, and hydraulic cylinders are evenly spaced at both ends of the middle horizontal part along its length direction.

[0022] It also includes a slurry stop bar 11, which is arranged around the bottom mold steel plate. A slurry stop bar is arranged between the two side mold steel plates. The slurry stop bar can make the side mold steel plate fit closely with the bottom mold steel plate to prevent slurry leakage and ensure the molding quality.

[0023] The side mold steel plate includes a plate body 13, a transverse rib 4, a vertical rib 3 and a connecting ear 14. On the outer side of the plate body, transverse ribs are welded and arranged opposite to each other. Vertical ribs are evenly spaced between the two transverse ribs. Connecting ears opposite to the hinged plate are spaced at intervals at the bottom of the plate body, and perforations are provided on the connecting ears. By arranging transverse ribs and vertical ribs on the plate body, the strength of the side mold steel plate is enhanced, and the molding quality and the service life of the entire device are guaranteed.

[0024] After assembly, the height of the bottom mold steel plate is adjusted by lifting and lowering the hydraulic cylinder to adapt to the required cover plate thickness; after adjustment, the staff lifts the surrounding side mold steel plates to make them fit with the side walls of the molded base tire, and then uses the tension screws and nuts to position the four side mold steel plates, thereby completing the molding of the steel template.

[0025] When removing the mold, first loosen the nut, remove the tension screws, and then slowly turn the surrounding side mold steel plates downward. Since the mold release agent is applied to the bottom mold steel plate in advance, it is easy to demould the finished product. The finished product is standard and consistent, ensuring the laying effect and quality of the precast concrete trench cover in the later stage.

[0026] Although the embodiments and drawings of the present invention are disclosed for illustrative purposes, those skilled in the art will appreciate that various substitutions, changes and modifications are possible without departing from the spirit and scope of the present invention and the appended claims. Therefore, the scope of the present invention is not limited to the contents disclosed in the embodiments and drawings.

Claims

1. A steel formwork for shaping prefabricated trench covers, characterized in that: It includes a molding base tire, a hinge plate, a side mold steel plate and a tension screw rod. The hinge plates are evenly spaced on the side walls of the molding base tire. Each hinge plate is provided with a hinge hole. The side mold steel plates are rotatably connected to the hinge plates on the four sides through a pin shaft. The upper end of each side mold steel plate is provided with a tension connection hole. The tension screw rods are installed through the opposite tension connection holes. Washers and nuts are installed at both ends of each tension screw rod. The molding base tire includes a mounting groove, a bottom mold steel plate, a hydraulic cylinder and a guide column. The guide columns are evenly spaced around the inside of the mounting groove. A hydraulic cylinder for driving the bottom mold steel plate to rise and fall is arranged at intervals in the middle of the mounting groove. The bottom of the bottom mold steel plate is supported on the guide columns.

2. A steel formwork for shaping prefabricated trench cover plates according to claim 1, characterized in that: It also includes stop slurry strips, which are arranged around the bottom mold steel plate.

3. The steel formwork for shaping prefabricated trench cover plates according to claim 1, characterized in that: The side form steel plate includes a plate body, transverse ribs, vertical ribs and connecting ears. Transverse ribs arranged opposite to each other are welded on the outer side surface of the plate body, vertical ribs are evenly spaced between the two transverse ribs, and connecting ears opposite to the hinged plates are spaced at intervals at the bottom of the plate body, and perforations are provided on the connecting ears.

4. The steel formwork for shaping prefabricated trench cover plates according to claim 1, characterized in that: A release agent is coated on the upper end surface of the bottom mold steel plate.

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