Light integral type steel mould trolley

Abstract

The invention belongs to the technical field of box culvert pouring top plates, and particularly relates to a light integral type steel mould trolley which comprises bottom beams on the left side and the right side, a plurality of stand columns are fixedly connected to the upper end faces of the bottom beams, middle cross arms are fixedly connected between the corresponding stand columns on the left side and the right side, and an upper cross beam is arranged above the middle cross arms. The upper cross beams are fixedly connected with the stand columns through bolts, the top longitudinal beams are connected between the multiple upper cross beams through bolts, the top formwork is arranged above the top longitudinal beams, the side formworks are arranged on the left side and the right side of the top formwork, and the steel formwork trolley is machined through profile steel and steel plates and is large in rigidity, small in deformation, good in integrity and not prone to formwork shifting. The panel is formed by splicing the steel dies, so that the defects of slurry leakage and appearance of joints are reduced, the dimensional accuracy of the box culvert is improved, and the appearance quality is also greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of box culvert casting top plates, in particular to a light integral steel formwork trolley. Background Art

[0002] When pouring the top plate of the existing box culvert, its template is divided into two parts: the side template and the top template. When the template is reused, the template is installed through the processes of setting up the bracket, installing the side template, installing the top side I-beam, and the top side template. When removing the template, it is necessary to loosen the top support bracket first, and then remove the side template and the top template respectively. The template installation and removal process is complicated and time-consuming. There are the following problems when pouring the top plate of the box culvert: ① The overall stability of the template is poor, the templates are not a whole, and it is easy to run the mold and leak slurry; ② The repeated assembly of formwork during box culvert construction wastes a lot of time. It is difficult to remove the formwork, the turnover and assembly time of the formwork is long, and the labor and mechanical equipment costs are high.

[0003] For this purpose, we propose a lightweight integral steel mold trolley. Summary of the invention

[0004] In view of the shortcomings of the prior art, the present invention provides a light integral steel mold trolley to solve the background problem.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: A light integral steel mold trolley comprises left and right bottom beams, wherein the upper end surface of the bottom beam is fixedly connected with a plurality of columns, a middle cross brace is fixedly connected between the corresponding left and right columns, an upper cross beam is arranged above the middle cross brace, the upper cross beam is fixedly connected to the columns by bolts, a top longitudinal beam is bolted between a plurality of upper cross beams, a top template is arranged above the top longitudinal beam, side templates are arranged on the left and right sides of the top template, a sub-template is bolted between the side template and the top template, a plurality of cross brace screw rods are hingedly installed between the side template and the columns, a plurality of top brace screw rods are hingedly installed between the top template and the top longitudinal beam, a plurality of first diagonal brace screw rods are hingedly installed between the side template and the columns, a plurality of second diagonal brace screw rods are hingedly installed between the top template and the top longitudinal beam, and a connecting screw rod is installed between the left and right bottom beams.

[0006] As a further feature of the present application, a plurality of moving wheels are installed at the bottom of the bottom beam, and a steel rail is arranged at the bottom of the bottom beam.

[0007] As a further feature of the present application, adjacent front and rear side columns are bolted to each other with a cross beam.

[0008] As a further feature of the present application, adjacent front and rear side columns are bolted to each other with a first scissors diagonal brace and a second scissors diagonal brace, and the first scissors diagonal brace and the second scissors diagonal brace are cross-arranged.

[0009] As a further feature of the present application, a plurality of lifting blocks are fixedly welded to the bottom of the upper cross beam, and a group of lifting holes are opened on the lifting blocks.

[0010] As a further feature of the present application, the connecting screw rod, the cross support screw rod, the top support screw rod, the first diagonal support screw rod and the second diagonal support screw rod are all bidirectional screw rods.

[0011] As a further feature of the present application, a column diagonal brace is bolted between the upper cross beam and the column.

[0012] As a further feature of the present application, a plurality of first reinforcing inner ribs are fixedly connected to the bottom of the top template, and a plurality of first connecting ribs are bolted to the bottom of the first reinforcing inner ribs.

[0013] As a further feature of the present application, a connecting frame is fixedly welded on the inner side of the side formwork, a number of second reinforcing inner ribs are fixedly welded inside the connecting frame, a number of second connecting ribs are bolted to the second reinforcing inner ribs, and longitudinal beam ribs are bolted to the second connecting ribs.

[0014] As a further feature of the present application, the bottom beam, the columns and the top longitudinal beam are all made of I-shaped steel, and a plurality of reinforcing blocks are fixedly welded to the inner walls of the bottom beam, the columns and the top longitudinal beam.

[0015] The present invention provides a light integral steel mold trolley. Compared with the prior art, it has the following beneficial effects: 1. Strong stability: The trolley truss has good integrity and each component is assembled, disassembled and recycled. Travel wheels are installed on the bottom plate of the truss, so it can be moved as a whole during construction.

[0016] 2. Strong simplicity: The box culvert uses standardized steel trusses as the support system. The initial investment cost is high and the assembly time is long, but in the later construction, a large amount of manpower and mechanical equipment can be reduced to transport steel supports and formworks, reducing labor costs and speeding up work efficiency.

[0017] 3. Strong mobility: After the steel formwork trolley is assembled for the first time, it can be directly lifted and installed into the box culvert as a whole. It is convenient and fast, saving a lot of installation and disassembly time, and plays a key role in cost control and construction period control.

[0018] Considering the above construction methods can improve production capacity and reduce construction risks, this project decided to adopt the integral steel formwork trolley construction process, which has a significant effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the main structure of the present invention; Figure 2 It is a bottom view structural diagram of the main body of the present invention; Figure 3 It is a schematic diagram of a part of the main structure of the present invention; Figure 4 It is a bottom view schematic diagram of a part of the main structure of the present invention; Figure 5 It is a schematic front view of part of the main structure of the present invention; Figure 6 It is a schematic diagram of the side formwork structure of the present invention.

[0020] In the figure: 1. Rail; 2. Side formwork; 3. Branch formwork; 4. Top formwork; 5. Second diagonal brace screw rod; 6. Bottom beam; 7. Horizontal connecting beam; 8. Second scissors diagonal brace; 9. First scissors diagonal brace; 10. Top longitudinal beam; 11. Upper horizontal beam; 12. Lifting block; 13. Column diagonal brace; 14. Middle horizontal brace; 15. Column; 16. Connecting screw rod; 17. Second reinforcing inner rib plate; 18. Second connecting rib plate; 19. Longitudinal beam rib plate; 20. Horizontal brace screw rod; 21. Connecting frame; 22. First reinforcing inner rib plate; 23. First connecting rib plate; 24. First diagonal brace screw rod; 25. Moving wheel. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. 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.

[0022] See also Figure 1-6 The present invention provides a technical solution: a light integral steel mold trolley, including a bottom beam 6 on the left and right sides, a plurality of columns 15 are fixedly connected to the upper end surface of the bottom beam 6, a middle cross brace 14 is fixedly connected between the corresponding left and right columns 15, an upper cross beam 11 is arranged above the middle cross brace 14, the upper cross beam 11 and the columns 15 are fixedly connected by bolts, a top longitudinal beam 10 is bolted between the plurality of upper cross beams 11, a top template 4 is arranged above the top longitudinal beam 10, side templates 2 are arranged on the left and right sides of the top template 4, a sub-template 3 is bolted between the side template 2 and the top template 4, and the side template 2 A plurality of transverse support screw rods 20 are hingedly installed between the column 15, a plurality of top support screw rods are hingedly installed between the top template 4 and the top longitudinal beam 10, a plurality of first diagonal support screw rods 24 are hingedly installed between the side template 2 and the column 15, a plurality of second diagonal support screw rods 5 are hingedly installed between the top template 4 and the top longitudinal beam 10, a connecting screw rod 16 is installed between the left and right bottom beams 6, a plurality of moving wheels 25 are installed at the bottom of the bottom beam 6, a steel rail 1 is arranged at the bottom of the bottom beam 6, and the connecting screw rod 16, the transverse support screw rod 20, the top support screw rod, the first diagonal support screw rod 24 and the second diagonal support screw rod 5 all adopt bidirectional screw rods.

[0023] The main vertical force support system of this trolley is composed of a bottom beam 6, columns 15, a middle cross brace 14, an upper cross beam 11, and a top longitudinal beam 10. The total length of the trolley is 5.1m, and it is made of 20# channel steel. The column axis spacing is 2.8m. First, install the 4 door frames with columns 15 with equal spacing of 1.4 meters on the bottom beam of the trolley, and then connect the connecting screws 16, the middle cross brace 14, the middle cross brace 14, and the upper cross beam 11 in the middle and on both sides of the door frame to form a whole. Finally, install the top plate longitudinal beam 10. When assembling the template, first install the top plate template 4, and then install the side template 2. The top template 2 is provided with a connecting plate at the back rib, which can be directly connected to the trolley top plate longitudinal beam 10 with screws. The side template is provided with a full-length connecting rod, which can be directly connected to the cross brace screw 20 on the trolley column 15. All templates are installed After installation, enter the trolley, and ensure that the overall size meets the design requirements by adjusting the horizontal support screw rod 20 and the diagonal support screw rod. After the size adjustment is completed, the template is polished and the release agent is applied. Then, the rail 1 (spacing 2800) is arranged in the box culvert first, and the rails 1 are connected and fixed with 10# channel steel to prevent the rails 1 from shifting. Then the equipment is lifted. After reaching the box culvert position, the iron wedge is first inserted into the moving wheel 25 to prevent the trolley from moving and sliding. Then the size of the overall trolley is adjusted using the internal horizontal support screw rod 20, diagonal support screw rod, and top support screw rod. When adjusting the height, use 4 jacks to support the trolley so that its bottom is at the same level, and then install the top support screw rod. After fixing the screw rod height, unload the 4 jacks at the same time. This device can prevent the template from running and leaking easily between the templates, and the overall stability is strong. After the box culvert is poured, when the top plate concrete strength reaches the designed demolding strength, the top template 4 can be demolded. Before removing the formwork, arrange the position of the winch and the completed rail support frame in advance. The track of the rail support frame and the track inside the trolley should be kept horizontal and straight. When removing the formwork, first retract the cross support screw to separate the side formwork from the concrete surface (30mm). Secondly, use 6 screw jacks to support the bottom beam of the trolley, loosen the bottom connecting screw 16, and separate it from the rail 1. Finally, slowly lower the jacks at the same time to separate the trolley from the top plate concrete under the action of its own weight until the moving wheel drops onto the steel track to complete the demoulding. After confirming that all the formworks are separated from the concrete surface, use 2 lifting rings to connect the wire rope on the winch to the trolley pull ring, and then the winch operator will press the remote control to pull the trolley out at a uniform speed. The gantry crane assists in traction. After the overall pulling and moving is completed, it is polished and coated with a release agent, and then hoisted to the inside of the next box culvert. The templates during the construction of this box culvert are simple to assemble repeatedly. It is difficult to remove the formwork, the turnover and assembly time of the template is short, and the labor and mechanical equipment costs are relatively low.

[0024] A transverse connecting beam 7 is bolted between the adjacent front and rear side columns 15 , and a first scissors diagonal brace 9 and a second scissors diagonal brace 8 are bolted between the adjacent front and rear side columns 15 , and the first scissors diagonal brace 9 and the second scissors diagonal brace 8 are cross-arranged.

[0025] The connection strength of the trolley and the stability of the overall structure can be improved by providing the transverse connecting beam 7, the first scissors diagonal brace 9 and the second scissors diagonal brace 8.

[0026] A plurality of lifting blocks 12 are fixedly welded to the bottom of the upper cross beam 11 , and a group of lifting holes are opened on the lifting blocks 12 , so that the trolley can be conveniently lifted through the lifting blocks 12 .

[0027] A column diagonal brace 13 is bolted between the upper cross beam 11 and the column 15, which further improves the connection strength of the vehicle and the stability of the overall structure.

[0028] The bottom of the top template 4 is fixedly connected with a plurality of first reinforcing inner ribs 22 , and the bottom of the first reinforcing inner ribs 22 is bolted with a plurality of first connecting ribs 23 . The structural strength of the top template 4 can be improved by the first reinforcing inner ribs 22 and the first connecting ribs 23 .

[0029] A connecting frame 21 is fixedly welded to the inner side of the side formwork 2, a plurality of second reinforcing inner ribs 17 are fixedly welded inside the connecting frame 21, a plurality of second connecting ribs 18 are bolted to the second reinforcing inner ribs 17, and a longitudinal beam rib 19 is bolted to the second connecting ribs 18. The structural strength of the side formwork 2 can be increased by means of the second reinforcing inner ribs 17, the second connecting ribs 18 and the longitudinal beam ribs 19.

[0030] The bottom beam 6 , the columns 15 and the top longitudinal beam 10 are all made of I-shaped steel. A plurality of reinforcing blocks are fixedly welded to the inner walls of the bottom beam 6 , the columns 15 and the top longitudinal beam 10 .

[0031] Working principle: The main vertical force support system of this trolley is composed of a bottom beam 6, columns 15, middle cross braces 14, upper cross beams 11, and top longitudinal beams 10. The total length of the trolley is 5.1m, and it is made of 20# channel steel. The column axis spacing is 2.8m. First, install 4 door frames with columns 15 with equal spacing of 1.4 meters on the bottom beam of the trolley, and then connect the connecting screws 16, middle cross braces 14, middle cross braces 14, and upper cross beams 11 in the middle and on both sides of the door frame to form a whole. Finally, install the top plate longitudinal beam 10. When assembling the formwork, first install the top plate formwork 4, and then install the side formwork 2. A connecting plate is set at the back rib of the top formwork 2, which can be directly connected to the trolley top plate longitudinal beam 10 with screws. The side formwork is provided with a full-length connecting rod, which can be directly connected to the cross bracing screw rod 20 on the trolley column 15. All formworks are installed After installation, enter the trolley, and ensure that the overall size meets the design requirements by adjusting the horizontal support screw rod 20 and the diagonal support screw rod. After the size adjustment is completed, the template is polished and the release agent is applied. Then, the rail 1 (spacing 2800) is arranged in the box culvert first, and the rails 1 are connected and fixed with 10# channel steel to prevent the rails 1 from shifting. Then the equipment is lifted. After reaching the box culvert position, the iron wedge is first inserted into the moving wheel 25 to prevent the trolley from moving and sliding. Then the size of the overall trolley is adjusted using the internal horizontal support screw rod 20, diagonal support screw rod, and top support screw rod. When adjusting the height, use 4 jacks to support the trolley so that its bottom is at the same level, and then install the top support screw rod. After fixing the screw rod height, unload the 4 jacks at the same time. This device can prevent the template from running and leaking easily between the templates, and the overall stability is strong. After the box culvert is poured, when the top plate concrete strength reaches the designed demolding strength, the top template 4 can be demolded. Before removing the formwork, arrange the position of the winch and the completed rail support frame in advance. The track of the rail support frame and the track inside the trolley should be kept horizontal and straight. When removing the formwork, first retract the cross support screw to separate the side formwork from the concrete surface (30mm). Secondly, use 6 screw jacks to support the bottom beam of the trolley, loosen the bottom connecting screw 16, and separate it from the rail 1. Finally, slowly lower the jacks at the same time to separate the trolley from the top plate concrete under the action of its own weight until the moving wheel drops onto the steel track to complete the demoulding. After confirming that all the formworks are separated from the concrete surface, use 2 lifting rings to connect the wire rope on the winch to the trolley pull ring, and then the winch operator will press the remote control to pull the trolley out at a uniform speed. The gantry crane assists in traction. After the overall pulling and moving is completed, it is polished and coated with a release agent, and then hoisted to the inside of the next box culvert. The templates during the construction of this box culvert are simple to assemble repeatedly. It is difficult to remove the formwork, the turnover and assembly time of the template is short, and the labor and mechanical equipment costs are relatively low.

[0032] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A light integral steel mold trolley, comprising bottom beams (6) on the left and right sides, characterized in that: The upper end surface of the bottom beam (6) is fixedly connected to a plurality of columns (15); a middle cross brace (14) is fixedly connected between the corresponding left and right columns (15); an upper cross beam (11) is arranged above the middle cross brace (14); the upper cross beam (11) is fixedly connected to the columns (15) by bolts; a top longitudinal beam (10) is bolted between the plurality of upper cross beams (11); a top formwork (4) is arranged above the top longitudinal beam (10); side formworks (2) are arranged on the left and right sides of the top formwork (4); the side formworks (2) ) and the top template (4) are bolted to a sub-template (3), a plurality of transverse support screw rods (20) are hingedly installed between the side template (2) and the column (15), a plurality of top support screw rods are hingedly installed between the top template (4) and the top longitudinal beam (10), a plurality of first diagonal support screw rods (24) are hingedly installed between the side template (2) and the column (15), a plurality of second diagonal support screw rods (5) are hingedly installed between the top template (4) and the top longitudinal beam (10), and a connecting screw rod (16) is installed between the bottom beams (6) on the left and right sides.

2. The light integral steel mold trolley according to claim 1, characterized in that: A plurality of moving wheels (25) are installed at the bottom of the bottom beam (6), and a steel rail (1) is provided at the bottom of the bottom beam (6).

3. The light integral steel mold trolley according to claim 2 is characterized in that: A transverse connecting beam (7) is bolted between adjacent front and rear side uprights (15).

4. The light integral steel mold trolley according to claim 3 is characterized in that: A first scissor diagonal brace (9) and a second scissor diagonal brace (8) are bolted between adjacent front and rear side uprights (15), and the first scissor diagonal brace (9) and the second scissor diagonal brace (8) are cross-arranged.

5. The light integral steel mold trolley according to claim 4, characterized in that: A plurality of lifting blocks (12) are fixedly welded to the bottom of the upper crossbeam (11), and a group of lifting holes are provided on the lifting blocks (12).

6. The light integral steel mold trolley according to claim 5, characterized in that: The connecting screw rod (16), the horizontal support screw rod (20), the top support screw rod, the first diagonal support screw rod (24) and the second diagonal support screw rod (5) are all bidirectional screw rods.

7. The light integral steel mold trolley according to claim 6, characterized in that: A column diagonal brace (13) is bolted between the upper cross beam (11) and the column (15).

8. The light integral steel mold trolley according to claim 7, characterized in that: A plurality of first reinforcing inner ribs (22) are fixedly connected to the bottom of the top template (4), and a plurality of first connecting ribs (23) are bolted to the bottom of the first reinforcing inner ribs (22).

9. The light integral steel mold trolley according to claim 8, characterized in that: A connection frame (21) is fixedly welded to the inner side of the side formwork (2), a plurality of second reinforcing inner ribs (17) are fixedly welded inside the connection frame (21), a plurality of second connecting ribs (18) are bolted to the second reinforcing inner ribs (17), and a longitudinal beam rib (19) is bolted to the second connecting ribs (18).

10. The light integral steel mold trolley according to claim 9, characterized in that: The bottom beam (6), the columns (15) and the top longitudinal beam (10) are all made of I-shaped steel, and a plurality of reinforcing blocks are fixedly welded to the inner walls of the bottom beam (6), the columns (15) and the top longitudinal beam (10).

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