Lifting type cantilever retaining wall formwork assembly

Abstract

The utility model relates to a lifting type cantilever retaining wall formwork assembly, and belongs to the technical field of cantilever retaining wall construction. Comprising a plurality of groups of mutually spliced formworks and two groups of winches used for lifting the formworks, square timber frames abut against the outer sides of the formworks, a plurality of groups of main beams abut against the sides, away from the formworks, of the square timber frames, each group of main beams comprises two transverse steel pipes, and longitudinal steel pipes abut against the sides, away from the square timber frames, of the multiple groups of main beams. The transverse steel pipes and the longitudinal steel pipes are perpendicular to each other and are fixed through first cross-shaped fasteners. During construction, the formwork only needs to be assembled once, and after lower-layer concrete is solidified, the whole formwork can be integrally lifted to the required height through the assistance of the winch, so that the pouring work of upper-layer concrete is smoothly carried out. According to the construction method, the tedious steps caused by repeatedly disassembling and assembling the formwork in a traditional construction method are effectively omitted, the operation time and energy needed by workers are remarkably reduced, and the overall efficiency and safety of construction are greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cantilever retaining wall construction, in particular to a lifting cantilever retaining wall formwork assembly. Background Art

[0002] With the rise of slope construction, high-grade highway and railway construction, and the construction of numerous high-rise buildings in cities, retaining walls are increasingly used in foundation pits and slopes. Cantilever retaining walls, a lightweight type of retaining wall that has become increasingly common in China in recent years, have been widely used in water conservancy projects, highways, railways, and landscape gardens due to their simple structure, economical and practical application, and aesthetically pleasing appearance. Currently, cantilever retaining walls consist of a base plate and vertical walls fixed to it, relying primarily on the weight of the fill on the base plate for stability.

[0003] Most existing cantilever retaining walls utilize cast-in-place reinforced concrete structures. This type of structure requires formwork support prior to concrete pouring to ensure a smooth pouring process and structural stability. Conventional formwork support typically utilizes a combination of wooden formwork, square timber, and steel tube formwork. Although this support method is widely used in construction, workers must repeatedly disassemble and assemble the formwork during layered pouring, which is not only time-consuming and labor-intensive but also causes significant damage to the formwork, leading to a significant increase in formwork loss. Utility Model Content

[0004] In order to solve the above technical problems, the present invention provides a lifting cantilever retaining wall formwork assembly. The technical solution of the present invention is as follows:

[0005] A lifting cantilever retaining wall formwork assembly comprises multiple groups of mutually spliced formworks and two groups of winches for lifting the formworks, a square timber frame is placed against the outer side of the formwork, multiple groups of main beams are placed against the side of the square timber frame away from the formwork, each group of main beams comprises two transverse steel pipes, multiple groups of main beams are placed against the side away from the square timber frame, the transverse steel pipes and the longitudinal steel pipes are perpendicular to each other and fixed by a cross fastener, the formworks on the front and rear sides are fixed by tension bolts, multiple groups of through holes are provided on the surface of the formwork, the tension bolts pass through the through holes, and the tension bolts are located between the two transverse steel pipes. The front and rear ends of the tension bolts are movably sleeved with a clamping plate, and the clamping plate is located on the side of the main beam away from the square timber frame. The outer thread of the tension bolts is sleeved with a fixing nut, and the fixing nut abuts the side of the clamping plate away from the main beam. The clamping plate and the formwork are fixed by fixing parts, and two groups of inverted U-shaped frames are fixedly connected to the outer side of the main beam. The two groups of winches are respectively fixedly connected to the two groups of bases located on the left and right sides of the cantilever retaining wall. The upper surface of the base and the side close to the cantilever retaining wall are fixedly connected to an inverted L-shaped seat, and a pulley group is connected to the outer side of the transverse short side of the inverted L-shaped seat, and the steel strand connected to the winch passes through the pulley group and is connected to the inverted U-shaped frame.

[0006] Optionally, a trapezoidal protrusion is fixedly connected to one side of the template, and a trapezoidal groove matching the trapezoidal protrusion is provided on the other side of the template.

[0007] Optionally, the square timber frame includes two groups of longitudinal beams and multiple groups of transverse beams, the multiple groups of transverse beams are fixedly connected between the two groups of longitudinal beams, and the longitudinal beams and the transverse beams are perpendicular to each other, and the surface of the template close to the square timber frame is provided with two groups of longitudinal grooves for placing the longitudinal beams, and multiple groups of transverse grooves for placing the transverse beams are provided between the two groups of longitudinal grooves.

[0008] Optionally, the fixing part includes a connecting bolt and a hexagonal nut. A center hole for passing the tension bolt is opened at the center position of the card plate surface, and side holes are opened on the card plate surface above and below the center hole. A hexagonal groove is opened on the side surface of the template close to the square wooden frame and above and below the through hole. The hexagonal nut is fixedly connected to the inside of the hexagonal groove, and the connecting bolt passes through the side hole and is threadedly connected to the hexagonal nut.

[0009] Optionally, the two longitudinal sides of the inverted U-shaped frame are fixed to the transverse steel pipe through a cross fastener 2, and multiple sets of limit plates are fixedly connected to the outer sides of the two longitudinal sides of the inverted U-shaped frame, and the multiple sets of limit plates are respectively located under the main beam at corresponding positions.

[0010] Optionally, two groups of fixed ear seats are fixedly connected to the lateral sides of the inverted U-shaped frame, and a hook is fixedly connected to the end of the steel strand away from the winch, and the fixed ear seat and the hook are connected by an iron chain.

[0011] Optionally, the pulley assembly includes two groups of outer fixed pulley one, two groups of inner fixed pulley one, two groups of inner fixed pulley two and one group of outer fixed pulley two, the two groups of outer fixed pulley one are respectively fixedly connected to the left and right sides of the transverse short side of the inverted L-shaped seat, the steel strand passes through the inner side of the wheel body of the outer fixed pulley one, the two groups of inner fixed pulley one are respectively fixedly connected to the left and right sides of the transverse short side of the inverted L-shaped seat and are located above the outer fixed pulley one, the steel strand passes through the outer side of the wheel body of the inner fixed pulley one, the two groups of inner fixed pulley two are both fixedly connected to the upper surface of the transverse short side of the inverted L-shaped seat, the steel strand passes through the outer side of the wheel body of the inner fixed pulley two, the outer fixed pulley two is fixedly connected to the upper surface of the transverse short side of the inverted L-shaped seat and is located between the two groups of inner fixed pulley two, and the steel strand passes through the inner side of the wheel body of the outer fixed pulley two.

[0012] All the above optional technical solutions can be combined arbitrarily, and the present utility model does not provide detailed descriptions of the structures after the combinations.

[0013] By means of the above solution, the beneficial effects of the present invention are as follows:

[0014] This new construction method requires only one formwork assembly during construction. Once the lower layer of concrete solidifies, the entire formwork can be hoisted to the desired height with the help of a winch, allowing for smooth pouring of the upper layer of concrete. This effectively eliminates the tedious steps of repeatedly disassembling and assembling the formwork required in traditional construction methods, significantly reducing the time and effort required of workers and significantly improving overall construction efficiency and safety.

[0015] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and to implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall appearance and structure of the lifting cantilever retaining wall formwork assembly provided by the utility model;

[0017] Figure 2 for Figure 1 Schematic diagram of the enlarged structure at A in the middle;

[0018] Figure 3 This is a schematic diagram of the structure of the template, square timber frame, main beam, longitudinal steel pipe and tension bolts in the utility model;

[0019] Figure 4 for Figure 3 The right side cross-sectional view of

[0020] Figure 5 This is a schematic structural diagram of the template in the present utility model;

[0021] Figure 6 This is a schematic diagram of the exploded structure of the template, square timber frame and pallet in the utility model;

[0022] Figure 7 It is a structural schematic diagram of the inverted U-shaped frame in the utility model.

[0023] Numbers in the figure: 1, template; 11, trapezoidal protrusion; 12, trapezoidal groove; 13, longitudinal groove; 14, transverse groove; 15, through hole; 16, hexagonal groove; 17, hexagonal nut; 2, square timber frame; 21, longitudinal beam; 22, transverse beam; 3, main beam; 31, transverse steel pipe; 4, longitudinal steel pipe; 41, cross fastener 1; 5, tension bolt; 51, clamping plate; 511, center hole; 512, Side hole; 513, connecting bolt; 52, fixing nut; 6, inverted U-shaped frame; 61, cross fastener 2; 62, limit plate; 63, fixing ear seat; 64, iron chain; 7, base; 8, inverted L-shaped seat; 81, pulley block; 811, outer fixed pulley 1; 812, inner fixed pulley 1; 813, inner fixed pulley 2; 814, outer fixed pulley 2; 9, winch; 91, steel wire rope; 92, hook. DETAILED DESCRIPTION

[0024] The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0025] See also Figure 1-7 The utility model provides a lifting cantilever retaining wall formwork assembly, including multiple groups of mutually spliced formworks 1 and two groups of winches 9 for lifting the formworks 1, a square timber frame 2 is placed against the outer side of the formwork 1, and multiple groups of main beams 3 are placed against the side of the square timber frame 2 away from the formwork 1, each group of main beams 3 includes two transverse steel pipes 31, and multiple groups of main beams 3 are placed against the side away from the square timber frame 2. The transverse steel pipes 31 and the longitudinal steel pipes 4 are perpendicular to each other and are fixed by a cross fastener 41. The formworks 1 on the front and rear sides are fixed by tension bolts 5. Multiple groups of through holes 15 are opened on the surface of the formwork 1, and the tension bolts 5 pass through the through holes 15, and the tension bolts 5 are located between the two transverse steel pipes 31 The front and rear ends of the tension bolts 5 are movably sleeved with a clamping plate 51, which is located on the side of the main beam 3 away from the square timber frame 2. The outer thread of the tension bolts 5 is sleeved with a fixing nut 52, which abuts against the side of the clamping plate 51 away from the main beam 3. The clamping plate 51 and the formwork 1 are fixed by fixing parts. Two groups of inverted U-shaped frames 6 are fixedly connected to the outer side of the main beam 3. Two groups of winches 9 are respectively fixedly connected to two groups of bases 7 located on the left and right sides of the cantilever retaining wall. An inverted L-shaped seat 8 is fixedly connected to the upper surface of the base 7 and the side close to the cantilever retaining wall. A pulley group 81 is connected to the outer side of the transverse short side of the inverted L-shaped seat 8. The steel strand 91 connected to the winch 9 passes through the pulley group 81 and is connected to the inverted U-shaped frame 6.

[0026] The present invention greatly improves work efficiency when pouring concrete in layers. During construction, the formwork 1 only needs to be assembled once. After the lower layer of concrete solidifies, the formwork 1 is lifted as a whole by the winch 9, and the upper layer of concrete can be poured. This eliminates the tedious steps of repeatedly disassembling and assembling the formwork 1 in traditional methods, thereby significantly reducing labor costs and improving construction efficiency and safety.

[0027] Specifically, during installation, multiple sets of formwork 1 are first spliced and secured. Then, the formwork 1, square timbers 2, main beams 3, and longitudinal steel tubes 4 are installed sequentially from the inside out. Once secured, the tension bolts 5 are inserted through the through-holes 15 of the front formwork 1 and then exit through the through-holes 15 of the rear formwork 1. Clamps 51 are then placed over the front and rear ends of the tension bolts 5 and secured with nuts 52. Clamps 51 are then secured to the formwork 1 using fasteners to facilitate subsequent lifting. After the lower layer of concrete solidifies, the tension bolts 5 are removed, separating the formwork 1 from the underlying concrete. Two sets of inverted U-shaped frames 6 are then secured to the left and right ends of the main beam 3, respectively. The inverted U-shaped frames 6 are then secured to the ends of the steel strands 91 facing away from the winches 9. Finally, the two winches 9 are activated simultaneously, reeling in the steel strands 91, thereby raising the inverted U-shaped frames 6 and, in turn, lifting the main beam 3, formwork 1, and its connecting components. This completes the lifting operation of the formwork 1.

[0028] It should be noted that, in actual use, in order to ensure the stability of the support of the formwork 1, it is necessary to add diagonal braces to the longitudinal steel pipes 4.

[0029] Furthermore, a trapezoidal protrusion 11 is fixedly connected to one side of the template 1 , and a trapezoidal groove 12 matching with the trapezoidal protrusion 11 is formed on the other side of the template 1 .

[0030] Specifically, when multiple sets of templates 1 are spliced, it is only necessary to insert the trapezoidal protrusion 11 into the trapezoidal groove 12 of the adjacent template 1. This not only simplifies the splicing process and improves the splicing efficiency, but also greatly enhances the sealing between the templates 1 and effectively reduces the possibility of leakage.

[0031] Furthermore, the square timber frame 2 includes two groups of longitudinal beams 21 and multiple groups of cross beams 22. The multiple groups of cross beams 22 are fixedly connected between the two groups of longitudinal beams 21, and the longitudinal beams 21 and the cross beams 22 are perpendicular to each other. Two groups of longitudinal grooves 13 for placing the longitudinal beams 21 are opened on the surface of the template 1 on one side close to the square timber frame 2, and multiple groups of cross grooves 14 for placing the cross beams 22 are opened between the two groups of longitudinal grooves 13.

[0032] Specifically, the formwork 1 and the timber frames 2 are relatively fixed. The interaction between the longitudinal beams 21 and the longitudinal slots 13 limits left-right movement between the formwork 1 and the timber frames 2. The interaction between the crossbeams 22 and the transverse slots 14 limits up-and-down movement between the formwork 1 and the timber frames 2. As a result, when the formwork 1 is lifted, the two can maintain a stable structure.

[0033] Furthermore, the fixing parts include a connecting bolt 513 and a hexagonal nut 17. A center hole 511 for passing the tension bolt 5 is opened at the center position of the surface of the clamping plate 51. Side holes 512 are opened on the surface of the clamping plate 51 and located above and below the center hole 511. A hexagonal groove 16 is opened on the side surface of the template 1 close to the square timber frame 2 and located above and below the through hole 15. The hexagonal nut 17 is fixedly connected to the inside of the hexagonal groove 16, and the connecting bolt 513 passes through the side hole 512 and is threadedly connected to the hexagonal nut 17.

[0034] Specifically, when fixing the template 1 and the main beam 3, the connecting bolt 513 is passed through the side hole 512 and then screwed into the hexagonal nut 17, so that the template 1 and the main beam 3 form an integral structure, which is convenient for subsequent lifting operations.

[0035] Furthermore, the two longitudinal sides of the inverted U-shaped frame 6 are fixed to the transverse steel pipe 31 through a cross fastener 61, and multiple sets of limit plates 62 are fixedly connected to the outer sides of the two longitudinal sides of the inverted U-shaped frame 6, and the multiple sets of limit plates 62 are respectively located under the main beam 3 at corresponding positions.

[0036] Specifically, after the longitudinal sides of the inverted U-shaped frame 6 are fixed to the transverse steel pipe 31 via the second cross fastener 61, during the lifting process, the inverted U-shaped frame 6 may slide relative to the second cross fastener 61. In this case, the provision of the limit plate 62 can prevent the inverted U-shaped frame 6 from sliding relative to the transverse steel pipe 31 during the lifting process, thereby ensuring the safety of the lifting operation.

[0037] Furthermore, two sets of fixed ear seats 63 are fixedly connected to the lateral sides of the inverted U-shaped frame 6, and a hook 92 is fixedly connected to the end of the steel strand 91 away from the winch 9, and the fixed ear seat 63 and the hook 92 are connected by an iron chain 64.

[0038] Specifically, when connecting the inverted U-shaped frame 6 and the steel strand 91 , it is only necessary to hook the iron chain 64 on the hook 92 .

[0039] Furthermore, the pulley group 81 includes two sets of outer fixed pulleys 811, two sets of inner fixed pulleys 812, two sets of inner fixed pulleys 813 and one set of outer fixed pulleys 814. The two sets of outer fixed pulleys 811 are fixedly connected to the left and right sides of the transverse short side of the inverted L-shaped seat 8, and the steel strand 91 passes through the inner side of the wheel body of the outer fixed pulley 811. The two sets of inner fixed pulleys 812 are fixedly connected to the left and right sides of the transverse short side of the inverted L-shaped seat 8 and are located at the outer fixed pulley. Above the wheel 1 811, the steel strand 91 passes through the outer side of the wheel body of the inner fixed pulley 1 812, and the two groups of inner fixed pulleys 2 813 are fixedly connected to the upper surface of the transverse short side of the inverted L-shaped seat 8, and the steel strand 91 passes through the outer side of the wheel body of the inner fixed pulley 2 813, and the outer fixed pulley 2 814 is fixedly connected to the upper surface of the transverse short side of the inverted L-shaped seat 8 and is located between the two groups of inner fixed pulleys 2 813, and the steel strand 91 passes through the inner side of the wheel body of the outer fixed pulley 2 814.

[0040] Specifically, the pulley block 81 limits and guides the steel strand 91, allowing the steel strand 91 to slide smoothly along a set path. The rotation of the wheel further reduces friction, ensuring that the movement of the steel strand 91 is smoother.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. It should be pointed out that ordinary technicians in this technical field can make several improvements and modifications without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A lifting cantilever retaining wall formwork assembly, characterized in that: The invention comprises a plurality of mutually connected templates (1) and two groups of winches (9) for lifting the templates (1); a square timber frame (2) is placed against the outer side of the template (1); a plurality of main beams (3) are placed against the side of the square timber frame (2) away from the template (1); each group of the main beams (3) comprises two transverse steel pipes (31); a longitudinal steel pipe (4) is placed against the side of the plurality of main beams (3) away from the square timber frame (2); the transverse steel pipes (31) and the longitudinal steel pipes (4) are perpendicular to each other and fixed by a cross fastener (41); the templates (1) at the front and rear sides are fixed by tension bolts (5); a plurality of through holes (15) are provided on the surface of the template (1); the tension bolts (5) pass through the through holes (15); the tension bolts (5) are located between the two transverse steel pipes (31); the tension bolts (5) The front and rear ends of the main beam (3) are movably sleeved with a clamping plate (51), the clamping plate (51) is located on the side of the main beam (3) away from the square timber frame (2), the outer thread of the tension bolt (5) is sleeved with a fixing nut (52), the fixing nut (52) abuts against the side of the clamping plate (51) away from the main beam (3), the clamping plate (51) and the template (1) are fixed by a fixing piece, the outer side of the main beam (3) is fixedly connected with two groups of inverted U-shaped frames (6), the two groups of winches (9) are respectively fixedly connected to two groups of bases (7) located on the left and right sides of the cantilever retaining wall, the upper surface of the base (7) and the side close to the cantilever retaining wall are fixedly connected with an inverted L-shaped seat (8), the outer side of the transverse short side of the inverted L-shaped seat (8) is connected with a pulley group (81), and the steel strand (91) connected to the winch (9) passes through the pulley group (81) and is connected to the inverted U-shaped frame (6).

2. A lifting cantilever retaining wall formwork assembly according to claim 1, characterized in that: A trapezoidal protrusion (11) is fixedly connected to one side of the template (1), and a trapezoidal groove (12) matching the trapezoidal protrusion (11) is provided on the other side of the template (1).

3. The lifting cantilever retaining wall formwork assembly according to claim 1, characterized in that: The square timber frame (2) comprises two groups of longitudinal beams (21) and multiple groups of transverse beams (22). The multiple groups of transverse beams (22) are fixedly connected between the two groups of longitudinal beams (21), and the longitudinal beams (21) and the transverse beams (22) are perpendicular to each other. The template (1) is provided with two groups of longitudinal grooves (13) for accommodating the longitudinal beams (21) on a surface of one side close to the square timber frame (2). Multiple groups of transverse grooves (14) for accommodating the transverse beams (22) are provided between the two groups of longitudinal grooves (13).

4. The lifting cantilever retaining wall formwork assembly according to claim 1, characterized in that: The fixing member includes a connecting bolt (513) and a hexagonal nut (17). A center hole (511) for passing the tension bolt (5) is provided at the center position of the surface of the card plate (51). Side holes (512) are provided on the surface of the card plate (51) above and below the center hole (511). A hexagonal groove (16) is provided on the surface of one side of the template (1) close to the square timber frame (2) and above and below the through hole (15). The hexagonal nut (17) is fixedly connected to the inside of the hexagonal groove (16). The connecting bolt (513) passes through the side hole (512) and is threadedly connected to the hexagonal nut (17).

5. The lifting cantilever retaining wall formwork assembly according to claim 1, characterized in that: The two longitudinal sides of the inverted U-shaped frame (6) are fixed to the transverse steel pipe (31) through a second cross fastener (61), and multiple groups of limit plates (62) are fixedly connected to the outer sides of the two longitudinal sides of the inverted U-shaped frame (6), and the multiple groups of limit plates (62) are respectively located below the main beam (3) at corresponding positions.

6. The lifting cantilever retaining wall formwork assembly according to claim 5, characterized in that: Two groups of fixed ear seats (63) are fixedly connected to the transverse sides of the inverted U-shaped frame (6); one end of the steel strand (91) away from the winch (9) is fixedly connected to a hook (92); and the fixed ear seat (63) and the hook (92) are connected by an iron chain (64).

7. The lift-type cantilever retaining wall formwork assembly according to claim 1, characterized in that: The pulley group (81) includes two groups of outer fixed pulleys (811), two groups of inner fixed pulleys (812), two groups of inner fixed pulleys (813) and one group of outer fixed pulleys (814). The two groups of outer fixed pulleys (811) are respectively fixedly connected to the left and right sides of the transverse short side of the inverted L-shaped seat (8). The steel strand (91) passes through the inner side of the wheel body of the outer fixed pulley (811). The two groups of inner fixed pulleys (812) are respectively fixedly connected to the left and right sides of the transverse short side of the inverted L-shaped seat (8) and are located at the outer fixed pulley (81 1), the steel strand (91) passes through the outer side of the wheel body of the inner fixed pulley one (812), the two groups of the inner fixed pulley two (813) are fixedly connected to the upper surface of the transverse short side of the inverted L-shaped seat (8), the steel strand (91) passes through the outer side of the wheel body of the inner fixed pulley two (813), the outer fixed pulley two (814) is fixedly connected to the upper surface of the transverse short side of the inverted L-shaped seat (8) and is located between the two groups of the inner fixed pulley two (813), and the steel strand (91) passes through the inner side of the wheel body of the outer fixed pulley two (814).

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