A formwork system and method for producing large-sized cable troughs based on pedestals

Abstract

The present invention belongs to the technical field of construction engineering, and specifically provides a formwork system and method for producing large-sized cable trenches based on a pedestal. The formwork system includes an inner formwork assembly, an outer formwork assembly, segmented partitions, tie members, and top tie rods, etc.; the method includes the following steps: Step S1: Clean the pedestal and lay an isolation layer on the surface of the working area of the pedestal; Step S2: Process and install a steel mesh; Step S3: Install the segmented partitions; Step S4: Install the inner formwork assembly and the outer formwork assembly, and adjust and reinforce the inner formwork assembly and the outer formwork assembly; The area between any two adjacent segmented partitions forms a casting and molding area; Step S5: Pour, plaster, and cure concrete in the casting and molding area to form a number of cable trenches; Step S6: After the concrete reaches the designed strength, remove the formwork; Step S7: After removing the formwork, connect the lifting rings embedded in the cable trench to a forklift, and transfer the cable trench to the finished product storage area. The present invention is easy to disassemble and assemble, can be self-made, does not require "turning over", and can quickly and simply realize the production of large-sized cable trenches.

Description

Technical Field

[0001] The present invention belongs to the technical field of construction engineering, and particularly relates to a formwork system and method for producing large-size cable troughs based on a pedestal. Background Art

[0002] Ordinary small-size cable troughs generally use shaped plastic-steel formwork or steel formwork. Concrete is poured on a vibrating table. After being vibrated and compacted by the vibrating table, it is transferred to the curing area. After the concrete reaches the strength, it is "turned over" for form removal.

[0003] The plastic-steel formwork is light in weight but insufficient in stiffness. When producing large-size cable troughs, "bulging" is likely to occur, and form removal is impossible, and it is severely damaged during the form removal process. The shaped steel formwork is too heavy. When removing the formwork, the formwork needs to be inverted and "turned over", and form removal is extremely inconvenient. The formwork must be manufactured by a professional manufacturer, with high cost and low production efficiency. Combining the above pain points, a method for simply and quickly producing large-size cable troughs is developed. Summary of the Invention

[0004] In order to solve the problems existing in the above-mentioned prior art, a formwork system and method for producing large-size cable troughs based on a pedestal are proposed.

[0005] The technical solution adopted by the present invention to solve its technical problems is:

[0006] This technical solution proposes a formwork system for producing large-size cable troughs based on a pedestal. A plurality of spaced convex platforms are connected to the top of the pedestal, and the area between any two adjacent convex platforms forms a working area for producing cable troughs; an outer formwork assembly is arranged in the working area, and the outer formwork assembly includes outer formworks respectively positioned on the inner sides of two adjacent convex platforms;

[0007] A plurality of sectional partition plates are arranged between the two outer formworks along the length direction of the working area. The sectional partition plates include a bottom plate, and side plates are respectively connected to both sides of the bottom plate; an intermediate plate connected to the bottom plate is arranged between the two side plates, and the bottom plate is pressed above the pedestal; the outer edges of the side plates abut against the inner walls of the outer formworks;

[0008] The formwork system further includes an inner formwork assembly arranged between the side plates and the intermediate plate. The inner formwork assembly includes a first inner formwork and a second inner formwork. The first inner formwork abuts against the inner edge of the side plate, and the second inner formwork abuts against the side wall of the intermediate plate; a plurality of retractable and adjustable tie members are connected between the first inner formwork and the second inner formwork.

[0009] Preferably, a plurality of positioning cards are welded to the top of the outer formwork. The positioning cards have positioning grooves. Positioning rods are welded to both sides of the sectional partition plates, and the positioning rods are adaptively clamped with the positioning grooves.

[0010] Preferably, a wooden wedge is provided between the boss and the outer formwork.

[0011] Preferably, it further includes a top tie rod. The two ends of the top tie rod are bent into hooks to form a "U" - shaped structure; the top tie rod is clamped on the upper edge of the outer formwork.

[0012] Preferably, the tie member is a turnbuckle. The turnbuckle includes an open - body flower basket. Adjusting rods are respectively thread - connected to the two ends of the open - body flower basket; angle irons are connected to the side walls of the first inner formwork and the second inner formwork, and the adjusting rods are respectively hinged to the corresponding angle irons.

[0013] Preferably, the positioning clamp is composed of two steel bar heads. The steel bar heads are welded to the top of the outer formwork, and a gap is formed between the two steel bar heads to form the positioning groove.

[0014] The present invention also proposes a method for producing large - size cable troughs based on a pedestal, including the following steps:

[0015] S1: Clean the pedestal and lay an isolation layer on the surface of the working area of the pedestal;

[0016] S2: Process and install the steel bar mesh;

[0017] The steel bar mesh used for cable trough production is processed and manufactured in advance at a processing factory. The cross - sectional shape of the steel bar mesh is in a "mountain" - shaped structure; lifting rings are welded to the steel bars at the bottom of the steel bar mesh; multiple groups of steel bar meshes are arranged in sequence and placed above the isolation layer;

[0018] S3: Install the sectional partition plates;

[0019] The sectional partition plates are pre - fabricated at a processing factory, and positioning rods are welded on both sides of the sectional partition plates; a group of sectional partition plates are positioned and installed between any two adjacent steel bar meshes; sectional partition plates are also positioned and installed at the outermost ends of the steel bar meshes at both the head and the tail;

[0020] S4: Install the inner formwork assembly and the outer formwork assembly; and adjust and reinforce the inner formwork assembly and the outer formwork assembly; the area between any two adjacent sectional partition plates forms a pouring and molding area;

[0021] S5: Pour, plaster and cure the concrete in the pouring and molding area to form several cable troughs;

[0022] S6: Demold after the concrete reaches the designed strength;

[0023] S7: After demolding, connect the lifting rings embedded in the cable trough to a forklift and transfer the cable trough to the finished product storage area.

[0024] Preferably, the method for adjusting and strengthening the inner mold assembly in S4 is as follows: Install the inner mold assembly between the side plate and the middle plate, and telescopically adjust the tie member so that the first inner template abuts against the inner edge of the side plate and the second inner template abuts against the side wall of the middle plate.

[0025] Preferably, the method for adjusting and strengthening the outer mold assembly in S4 is as follows: Install the outer mold assembly so that the outer template closely abuts against the side plate of the segmented partition, and insert the positioning rod into the positioning groove at the top of the outer template to complete the positioning; Drive a wooden wedge between the outer template and the boss to tightly press the outer template; Install top tie rods at the tops of the outer templates on both sides to complete the strengthening.

[0026] Compared with the prior art, the present invention has the following advantages:

[0027] 1. The formwork system in the present invention has the advantages of being easy to disassemble and assemble and convenient to strengthen; The overall formwork system adopts the structural form of the outer mold assembly, the inner mold assembly and the segmented partition, and cooperates with the prefabricated pedestal, which can conveniently realize the positioning installation and strengthening of the formwork system, and can quickly and simply realize the production of large-size cable troughs; And lifting rings are arranged on the steel mesh sheet, and in combination with the convenient disassembly and assembly characteristics of the formwork system, after demolding, the cable trough can be directly lifted by forklifting the lifting rings, without the need for "turning over", with high safety and reduced transportation difficulty.

[0028] 2. A concrete pedestal is adopted, and bosses are arranged on the pedestal, and a groove-shaped working area is formed between the bosses. By driving a wooden wedge between the boss and the outer template, it has the advantage of being easy to disassemble and assemble.

[0029] 3. The formwork system is self-made with low processing difficulty. The inner mold assembly is supported by adjustable tie members, which is convenient for the installation and disassembly of the inner mold.

[0030] 4. The cable trough adopts a segmentation method of 1 section / m. When segmenting, the concrete is separated by a 1-cm-thick segmented partition, which is convenient for installation; The segmented partition plays multiple roles; Firstly, it plays a role in segmentation; Secondly, it plays a role in supporting and positioning the inner mold assembly; Thirdly, it plays a role in positioning the outer template.

[0031] 5. Positioning rods are welded on both sides of the segmented partition, and positioning cards are welded on the top of the outer template. The positioning cards have positioning grooves, and the positioning rods are adaptively clamped with the positioning grooves, which can realize the positioning installation between the segmented partition and the outer template and improve the assembly speed.

[0032] 6. The top of the outer template is also strengthened by top tie rods. The top tie rods are made of steel bars, and the two ends are bent with hooks to form a "U" shape structure, which is easy to process. When in use, it is clamped into the upper edge of the top of the outer template, and it is convenient for disassembly and assembly. Description of the Drawings

[0033] The above and / or additional aspects and advantages of the present invention will become apparent and be readily understood from the following description of embodiments in conjunction with the accompanying drawings, in which:

[0034] Figure 1 It is the front view of the cable trough structure.

[0035] Figure 2 It is the structural sectional view of the formwork system of the present invention during construction.

[0036] Figure 3 It is the schematic diagram of the sectional partition structure.

[0037] Figure 4 It is the schematic diagram of the turnbuckle structure.

[0038] Figure 5 It is the schematic diagram of the layout structure of the formwork system of the present invention in the top view direction.

[0039] Figure 6 It is Figure 5 The enlarged schematic diagram of the structure of area A in

[0040] Figure 7 It is the schematic diagram of the cable trough structure after prefabrication and shaping.

[0041] Explanation of reference numerals:

[0042] 1 - Cable trough; 2 - Section joint; 3 - Pedestal; 31 - Isolation layer; 4 - Boss; 5 - Wooden wedge; 6 - Outer formwork; 7 - Inner formwork assembly; 71 - First inner formwork; 72 - Second inner formwork; 8 - Angle iron; 9 - Turnbuckle; 91 - Open body turnbuckle; 92 - Adjusting rod; 10 - Reinforcement mesh; 11 - Lifting ring; 12 - Top tie rod; 13 - Section partition; 131 - Bottom plate; 132 - Intermediate plate; 133 - Side plate; 14 - Positioning rod; 15 - Positioning clip; 16 - Positioning groove. Detailed implementation manners

[0043] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the accompanying drawings, in which the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation to the present invention.

[0044] As Figure 1-7 shown, this embodiment proposes a formwork system for producing large - size cable troughs based on a pedestal. The pedestal 3 is a concrete pedestal 3, and a number of spaced - apart bosses 4 are connected to the top of the pedestal 3. The area between any two adjacent bosses 4 forms a working area for producing the cable trough 1; the working area is a trough - shaped structure; an outer formwork assembly is arranged in the working area, and the outer formwork assembly includes outer formworks 6 respectively positioned on the inner sides of two adjacent bosses 4.

[0045] A number of sectional partition plates 13 are arranged between the two outer formworks 6 along the length direction of the working area. The sectional partition plate 13 includes a bottom plate 131, and side plates 133 are respectively connected to both sides of the bottom plate 131. An intermediate plate 132 connected to the bottom plate 131 is arranged between the two side plates 133. The cross-sectional shape of the sectional partition plate 13 is the same as that of the cable trough 1, both being a structure similar to the Chinese character "mountain". The bottom plate 131 is pressed on the upper part of the pedestal 3; the outer edges of the side plates 133 abut against the inner wall of the outer formwork 6. During installation, the outer side edges of the sectional partition plate 13 are closely attached to the inner wall of the outer formwork 6.

[0046] The cable trough 1 adopts a sectional method of 1 section / m. When sectioning, the concrete is separated by the sectional partition plate 13 with a thickness of 1 cm, which is convenient for installation; the sectional partition plate 13 has multiple functions; firstly, it serves as a sectional function; secondly, it serves as a function of supporting and positioning the inner formwork assembly 7; thirdly, it serves as a function of positioning the outer formwork 6. The sectional partition plate 13 is processed and manufactured with a steel plate with a thickness of 1 cm.

[0047] The formwork system further includes an inner formwork assembly 7 arranged between the side plate 133 and the intermediate plate 132. Two sets of inner formwork assemblies are required for prefabricating one cable trough 1. The inner formwork assembly 7 includes a first inner formwork 71 and a second inner formwork 72. The first inner formwork 71 abuts against the inner edge of the side plate 133, and the second inner formwork 72 abuts against the side wall of the intermediate plate 132; a number of retractable and adjustable tie members are connected between the first inner formwork 71 and the second inner formwork 72 for adjusting the distance between the first inner formwork 71 and the second inner formwork 72. A casting cavity is formed between the first formwork and the outer formwork 6; a casting cavity is also formed between the two second inner formworks 72.

[0048] A number of positioning cards 15 are welded on the top of the outer formwork 6. The positioning card 15 has a positioning groove 16. Positioning rods 14 are welded on both sides of the sectional partition plate 13, and the positioning rods 14 are adaptively clamped with the positioning groove 16. With such a design method, the positioning installation between the sectional partition plate 13 and the outer formwork 6 can be realized, and the assembly speed can be improved.

[0049] For the convenience of processing, the positioning card 15 is composed of two steel bar heads, and the steel bar heads are welded on the top of the outer formwork 6. A gap is formed between the two steel bar heads to form the positioning groove 16.

[0050] For the convenience of fixing, disassembling and assembling, a wooden wedge 5 is arranged between the boss 4 and the outer formwork 6. During construction, the wooden wedge 5 is hammered into the space between the boss 4 and the outer formwork 6 to complete the fixing of the outer formwork 6.

[0051] The entire system further includes a top tie rod 12. The two ends of the top tie rod 12 are bent into hooks, forming a "U" - shaped structure. The top tie rod 12 is clamped on the upper edge of the outer formwork 6. During construction, the top tie rod 12 is clamped on the upper edge of the outer formwork 6 and gently tapped with a hammer to achieve clamping of the top tie rod 12, which can play a role in tightening the top of the outer formwork 6. Cooperating with the wooden wedge 5 at the bottom, it can ensure the reliable fixation of the outer formwork 6. The top tie rod 12 is made by processing steel bars, which is easy to process and convenient for disassembly and assembly.

[0052] The tie member has a telescopic adjustment function and can be an electric telescopic rod or other structural forms. From an economic perspective, in this embodiment, the tie member is a turnbuckle 9. The turnbuckle 9 includes an open - body turnbuckle 91, and adjusting rods 92 are respectively thread - connected to both ends of the open - body turnbuckle 91. Angle irons 8 are connected to the side walls of the first inner formwork 71 and the second inner formwork 72, and the adjusting rods 92 are respectively hinged to the corresponding angle irons 8. When in use, by screwing the open - body turnbuckle 91, the adjustment of the tightness can be realized. The turnbuckle 9 is a common structure and will not be elaborated too much.

[0053] The present invention also proposes a method for producing large - size cable ducts 1 based on the pedestal 3, which includes the following steps:

[0054] S1: Clean the pedestal 3 and lay an isolation layer 31 on the surface of the working area of the pedestal 3; it should be noted that the isolation layer 31 can be a plastic sheet.

[0055] S2: Process and install the steel bar mesh 10;

[0056] The steel bar mesh 10 used for producing the cable duct 1 is processed and made in the processing factory in advance. The cross - sectional shape of the steel bar mesh 10 is a "mountain" - shaped structure; lifting rings 11 are welded to the steel bars at the bottom of the steel bar mesh 10; multiple groups of steel bar meshes 10 are arranged in sequence and placed above the isolation layer 31; it should be noted that cushion blocks are placed between the steel bar mesh 10 and the isolation layer 31, so that the steel bar mesh 10 is located in the middle position of the formed cable duct 1 after pouring.

[0057] S3: Install the sectional partition plates 13;

[0058] The sectional partition plates 13 are made in the processing factory in advance, and positioning rods 14 are welded to both sides of the sectional partition plates 13; a group of sectional partition plates 13 are positioned and installed between any two adjacent steel bar meshes 10; sectional partition plates 13 are also positioned and installed at the outermost ends of the steel bar meshes 10 at the head and tail ends.

[0059] S4: Install the inner formwork assembly 7 and the outer formwork assembly; and adjust and reinforce the inner formwork assembly 7 and the outer formwork assembly; the area between any two adjacent sectional partition plates 13 forms a pouring and forming area;

[0060] S5: Pour, plaster, and cure the concrete in the pouring and forming area to form several cable ducts 1;

[0061] S6: After the concrete reaches the designed strength, remove the formwork; after formwork removal, a joint seam 2 is formed between adjacent cable troughs 1. Refer to the appendix Figure 7 ;

[0062] S7: After formwork removal, connect the lifting rings 11 embedded in the cable trough 1 to a forklift, and transfer the cable trough 1 to the finished product storage area; tie a rope to the lifting ring 11, and the forklift's fork frame lifts the rope to lift the cable trough 1.

[0063] In the above steps, the method for adjusting and strengthening the inner formwork assembly 7 in S4 is as follows: Install the inner formwork assembly 7 between the side plate 133 and the middle plate 132, and telescopically adjust the tie members so that the first inner formwork 71 abuts against the inner edge of the side plate 133 and the second inner formwork 72 abuts against the side wall of the middle plate 132.

[0064] The method for adjusting and strengthening the outer formwork assembly in S4 is as follows: Install the outer formwork assembly so that the outer formwork 6 abuts tightly against the side plate 133 of the segmented partition 13, and insert the positioning rod 14 into the positioning groove 16 at the top of the outer formwork 6 to complete the positioning; drive a wooden wedge 5 between the outer formwork 6 and the convex platform 4 to tightly press the outer formwork 6; install top tie rods 12 at the tops of the outer formworks 6 on both sides to complete the strengthening.

[0065] In this solution, the formwork system is self-made without customization, and the processing difficulty is low. The inner formwork assembly 7 is supported by adjustable tie members, which facilitates the installation and removal of the inner formwork.

[0066] It should be noted that: Adopt a reasonable concrete pouring sequence. First pour the bottom plate 131 of the cable trough 1, and then pour the side wall of the cable trough 1. The concrete is vibrated with a small inserted vibrator.

[0067] It can be seen from the above embodiments that:

[0068] The formwork system in the present invention has the advantages of being easy to disassemble and assemble and convenient for strengthening; the overall formwork system adopts the structural form of the outer formwork assembly, the inner formwork assembly 7 and the segmented partition 13, and cooperates with the prefabricated pedestal 3, which can facilitate the positioning installation and strengthening of the formwork system, and can quickly and simply realize the production of large-size cable troughs 1; and lifting rings 11 are provided on the steel mesh 10. Combining with the characteristics of the convenient disassembly and assembly of the formwork system, after formwork removal, by lifting the lifting rings 11 with a forklift, the cable trough 1 can be directly lifted without "turning over", with high safety and reduced transportation difficulty.

[0069] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that: Various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and purposes of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. A formwork system for producing large-sized cable trenches based on a pedestal, characterized in that, a number of spaced convex platforms are connected to the top of the pedestal, and the area between any two adjacent convex platforms forms a working area for producing cable trenches; an outer formwork assembly is arranged in the working area, and the outer formwork assembly includes outer formwork plates respectively positioned on the inner sides of two adjacent convex platforms; a number of sectional partition plates are arranged between the two outer formwork plates along the length direction of the working area, the sectional partition plates include a bottom plate, and side plates are respectively connected to both sides of the bottom plate; an intermediate plate connected to the bottom plate is arranged between the two side plates, and the bottom plate is pressed above the pedestal; the outer edges of the side plates abut against the inner wall of the outer formwork plate; the formwork system further includes an inner formwork assembly arranged between the side plate and the intermediate plate, the inner formwork assembly includes a first inner formwork plate and a second inner formwork plate, the first inner formwork plate abuts against the inner edge of the side plate, and the second inner formwork plate abuts against the side wall of the intermediate plate; a number of retractable and adjustable tie members are connected between the first inner formwork plate and the second inner formwork plate.

2. The formwork system for producing large-sized cable trenches based on a pedestal according to claim 1, characterized in that, a number of positioning cards are welded to the top of the outer formwork plate, the positioning cards have positioning grooves, positioning rods are welded to both sides of the sectional partition plate, and the positioning rods are adaptively clamped with the positioning grooves.

3. The formwork system for producing large-sized cable trenches based on a pedestal according to claim 2, characterized in that, a wooden wedge is arranged between the convex platform and the outer formwork plate.

4. The formwork system for producing large-sized cable trenches based on a pedestal according to claim 1, characterized in that, it further includes a top pull rod, and both ends of the top pull rod are bent into hooks to form a "U" - shaped structure; the top pull rod is clamped on the upper edge of the outer formwork plate.

5. The formwork system for producing large-sized cable trenches based on a pedestal according to claim 1, characterized in that, the tie member is a turnbuckle, the turnbuckle includes an open - body flower basket, and adjusting rods are respectively thread - connected to both ends of the open - body flower basket; angle irons are connected to the side walls of the first inner formwork plate and the second inner formwork plate, and the adjusting rods are respectively hinged to the corresponding angle irons.

6. The formwork system for producing large-sized cable trenches based on a pedestal according to claim 2, characterized in that, the positioning card is composed of two steel bar heads, the steel bar heads are welded to the top of the outer formwork plate, and a gap is formed between the two steel bar heads to form the positioning groove.

7. A method for producing large-sized cable trenches based on a pedestal, characterized in that, using the formwork system for producing large-sized cable trenches based on a pedestal according to any one of claims 1 - 6, includes the following steps: S1: Clean the pedestal and lay an isolation layer on the surface of the working area of the pedestal; S2: Process and install the steel bar mesh; The steel bar mesh used for cable trench production is processed and manufactured in advance in a processing factory, and the cross - sectional shape of the steel bar mesh is a "mountain" - shaped structure; lifting rings are welded to the steel bars at the bottom of the steel bar mesh; multiple groups of steel bar meshes are arranged in sequence and placed above the isolation layer; S3: Install the sectional partition plates; The segmented partition plates are prefabricated in a processing factory, and positioning rods are welded on both sides of the segmented partition plates; a group of segmented partition plates are positioned and installed between any two adjacent steel mesh sheets; segmented partition plates are also positioned and installed at the outermost ends of the steel mesh sheets at the head and tail ends. S4: Install the inner mold assembly and the outer mold assembly; adjust and reinforce the inner mold assembly and the outer mold assembly; the area between any two adjacent segmented partition plates forms a pouring and molding area. S5: Pour, plaster and cure concrete in the pouring and molding area to form several cable troughs. S6: Demold after the concrete reaches the designed strength. S7: After demolding, connect the lifting rings embedded in the cable trough to a forklift, and transfer the cable trough to the finished product storage area.

8. A method for producing large-sized cable troughs based on a pedestal according to claim 7, wherein, The method for adjusting and reinforcing the inner mold assembly in S4 is: install the inner mold assembly between the side plate and the middle plate, and telescopically adjust the tie members so that the first inner template abuts against the inner edge of the side plate and the second inner template abuts against the side wall of the middle plate.

9. A method for producing large-sized cable troughs based on a pedestal according to claim 7, wherein, The method for adjusting and reinforcing the outer mold assembly in S4 is: install the outer mold assembly so that the outer template abuts closely against the side plate of the segmented partition plate, and insert the positioning rod into the positioning groove at the top of the outer template to complete positioning; drive wooden wedges between the outer template and the convex platform to tightly hold the outer template; install top tie rods at the tops of the outer templates on both sides to complete reinforcement.

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