Slipform device for a decked culvert

Abstract

This invention discloses a slipform device for culvert covers, comprising: a pouring platform, a ladder frame, end plates, and multiple connecting rods; the pouring platform consists of a construction platform, two constraint plate assemblies, and a moving part, with the construction platform positioned above two rows of reinforcing steel frames; the constraint plate assemblies include wall formwork and supporting beams on both sides of the corresponding reinforcing steel frames; the ladder frame is located on one side of the pouring platform; the end plates are detachably mounted at both ends of the wall formwork; and the connecting rods are vertically evenly distributed between the two constraint plate assemblies. In this invention, a traction device moves the pouring platform, the reinforcing steel frames move into the space between the constraint plate assemblies, and the end plates are used to enclose the pouring section and limit the moving part before pouring; once the concrete reaches a predetermined strength, the end plates are removed and the moving part is unlocked, and the pouring platform is moved to the next position for repeated operation. This device eliminates the need for repeated disassembly and assembly of formwork, reducing labor intensity and improving work efficiency.

Description

Technical Field

[0001] This invention relates to the field of highway engineering construction technology, and in particular to a culvert slipform device. Background Technology

[0002] In highway construction, culverts are important underground structures that enable water flow, small passage crossings, and roadbed protection.

[0003] Traditional culvert construction often uses modular steel or wooden formwork spliced ​​together to form the casting support for the culvert wall. However, to ensure the strength of the wall and meet acceptance standards, the wall needs to be cast in sections. This means that after each section is cast, the formwork needs to be removed and reassembled to the next section. This process is complicated, time-consuming, and labor-intensive, affecting work efficiency. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings mentioned above by providing a culvert cover slipform device that eliminates the need for repeated disassembly and assembly of the template, thereby improving work efficiency.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a culvert cover slipform device, comprising: a pouring platform, a ladder frame, a plug plate and multiple connecting rods; The pouring platform consists of a construction platform, two constraint plate assemblies, and a moving part. The construction platform is set above the two rows of steel reinforcement frames to support workers and provide them with a construction platform; Each of the aforementioned constraint plate groups corresponds one-to-one with each steel reinforcement frame, and each constraint plate group is composed of two wall formworks and multiple support beams respectively set on both sides of the corresponding steel reinforcement frame; Each of the aforementioned wall formwork templates is used to support and shape the concrete; Each of the aforementioned support beams is evenly distributed on the corresponding wall formwork and connected to the construction platform to support the wall formwork; The ladder is located on one side of the pouring platform to facilitate workers' access to the platform. Each of the aforementioned end plates is detachably installed at both ends of the two corresponding wall templates to separate the reinforcing steel frame; Each connecting rod is vertically distributed between the two constraint plate groups to support the corresponding wall template.

[0006] Furthermore, all wall formwork and supporting beams are slidably mounted on the construction platform; The connecting rod consists of an adjusting cylinder and two first adjusting rods; Each of the aforementioned adjusting cylinders is rotatably mounted on the construction platform, and has two threaded sections with opposite directions of rotation inside; Each of the first adjusting rods is threaded onto the corresponding end of the adjusting cylinder, and its other end is connected to the corresponding wall template in the corresponding constraint plate group; The construction platform is equipped with adjustment components connected to each of the adjustment cylinders, which are used to drive each of the adjustment cylinders to rotate together.

[0007] Furthermore, the adjustment component includes a first power unit and a chain drive assembly; The first power unit is mounted on the construction platform, and its moving end is connected to one end of the chain drive assembly. The chain drive assembly is connected to each of the adjusting cylinders, and the first power unit drives each of the adjusting cylinders to rotate together through it.

[0008] Furthermore, each of the wall formwork panels corresponding to the outer side of each steel reinforcement frame is provided with a toothed rack; Two demolding components are provided opposite to each other on the construction platform. Each demolding component includes a second power unit and gears disposed on the construction platform. The gear is rotatably mounted on the construction platform and located on one side of the corresponding wall template. The gear is connected to the moving end of the second power unit and meshes with the corresponding rack. The second power unit drives the corresponding wall template to move closer to or further away from the wall through the gear.

[0009] Furthermore, each wall template corresponding to the inner side of the steel reinforcement frame is vertically slidably provided with a plastic plate for forming the cover plate seat groove on the wall. The construction platform is also threaded with two second adjusting rods, each of which is rotatably connected to the corresponding plastic plate to drive its vertical lifting and lowering movement.

[0010] Furthermore, each of the wall templates is composed of multiple separable and connectable panels, with adjacent panels connected by bolts.

[0011] Furthermore, both the construction platform and the ladder are equipped with guardrails.

[0012] The beneficial effects of this invention are reflected in: In this invention, a traction device moves a pouring platform, positioning the corresponding steel reinforcement frame between corresponding constraint plate groups. End plates are then installed at both ends of each constraint plate group to enclose a pouring section within each steel reinforcement frame. Workers pour concrete into the pouring section on the construction platform. Once the concrete has solidified to a predetermined strength, workers remove the end plates and unlock the moving parts. The traction device then moves the pouring platform to the next location, repeating the pouring process until the entire steel reinforcement frame is poured. This eliminates the need for repeated disassembly and reassembly of formwork, reduces component removal workload, lowers labor intensity, and improves work efficiency. Attached Figure Description

[0013] Figure 1 This is a first front view of a culvert sliding formwork device according to the present invention; Figure 2 This is a cross-sectional view of a culvert sliding formwork device according to the present invention; Figure 3 for Figure 2 Enlarged view at point A in the middle; Figure 4 for Figure 2 A magnified view of point B in the middle.

[0014] In the picture: 1. Pouring platform; 11. Construction platform; 12. Restraint plate assembly; 121. Wall formwork; 1211. Plate; 122. Support beam; 13. Moving part; 14. Rack; 15. Plastic board; 2. Ladder frame; 3. End plate; 4. Connecting rod; 41. Adjusting cylinder; 42. First adjusting rod; 5. Adjusting component; 51. First power unit; 52. Chain drive assembly; 521. Sprocket; 522. Chain; 6. Demolding component; 61. Second power unit; 62. Gear; 7. Second adjusting rod; 8. Guardrail. Detailed Implementation

[0015] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0016] Please see Figure 1-4 The present invention discloses a culvert slipform device, comprising: a pouring platform 1, a ladder frame 2, a plug plate 3, and multiple connecting rods 4; The pouring platform 1 consists of a construction platform 11, two constraint plate assemblies 12, and a moving part 13; The construction platform 11 is set above two rows of steel reinforcement frames, and has a pouring port and a vibration operation area on it to support the workers and provide them with a construction platform. Each constraint plate group 12 corresponds to a corresponding steel reinforcement frame. The constraint plate group 12 is composed of two wall formwork 121 and multiple support beams 122 respectively set on both sides of the corresponding steel reinforcement frame. Each wall formwork 121 is used to support and shape the concrete; Each support beam 122 is evenly distributed on the corresponding wall formwork 121 and connected to the construction platform 11 to support the wall formwork 121; The ladder 2 is set on one side of the pouring platform 1 to facilitate workers to climb onto the pouring platform 1; Each end plate 3 is separably installed at both ends of two corresponding wall formwork 121 to separate the steel reinforcement frame and form a casting section; Each connecting rod 4 is vertically distributed between the two constraint plate groups 12 to support the corresponding wall formwork 121.

[0017] In practice, after the wall reinforcement frame is tied, the external traction component pulls the pouring platform 1 to move until each wall formwork 121 is located on the corresponding side of the corresponding reinforcement frame. Then, each moving part 13 is locked. Workers climb onto the construction platform 11 via the ladder 2 and connect each end plate 3 to the corresponding end of the wall formwork 121. At this time, the wall formwork 121 on both sides of the reinforcement frame cooperates with the corresponding two end plates 3 to enclose the pouring section in the reinforcement frame. Then, the workers pour and vibrate the pouring section. When the concrete in the pouring section reaches the initial setting strength, the workers remove each end plate 3 and unlock the moving part 13. Then, the traction device drives the construction platform 11 to move again until it moves to the next preset pouring section position of the reinforcement frame. Then, the moving part 13 is fixed again and the corresponding end plate 3 is installed in the predetermined position. The pouring operation is carried out again. This process is repeated to pour the entire wall reinforcement frame.

[0018] In this invention, a traction device moves the pouring platform 1, positioning the corresponding steel reinforcement frame between the corresponding constraint plate groups 12. End plates 3 are then installed at both ends of each constraint plate group 12 to enclose a pouring section within each steel reinforcement frame. Workers pour concrete into the pouring section on the construction platform 11. Once the concrete has solidified to a predetermined strength, workers remove the end plates 3 and unlock the moving parts 13. The traction device then moves the pouring platform 1 to the next position, repeating the pouring process until the entire steel reinforcement frame is poured. This eliminates the need for repeated disassembly and reassembly of the formwork, reduces the workload of component removal, lowers labor intensity, and improves work efficiency.

[0019] It should be noted that the traction equipment can use the winch from existing equipment.

[0020] It should be noted that the structure and function of the end cap 3 are common knowledge to those skilled in the art, so they will not be described in detail here.

[0021] It should be noted that the moving part 13 may use heavy-duty casters in the prior art. The structure and function of heavy-duty casters are common knowledge to those skilled in the art, so they will not be described in detail here.

[0022] It should be noted that each end plate 3 is equipped with a flexible sealing strip (not shown in the figure) at the splice, and each end plate 3 is connected to the corresponding wall template 121 by multiple tie bolts; After all tie bolts are installed, each flexible sealing strip is deformed by the compression between the corresponding end plate 3 and the wall template 121 to fill the gap between the corresponding end plate 3 and the corresponding wall template 121, thereby ensuring the sealing of the connection between each wall template 121 and the corresponding end plate 3.

[0023] In one embodiment, each wall template 121 and support beam 122 is slidably mounted on the construction platform 11; Each connecting rod 4 is composed of an adjusting cylinder 41 and two first adjusting rods 42; The adjusting cylinder 41 is rotatably mounted on the construction platform 11, and has two threaded sections with opposite directions of rotation inside. Each first adjusting rod 42 is threaded onto the corresponding end of the adjusting cylinder 41, and its other end is connected to the wall formwork 121 corresponding to the inner side of the steel reinforcement frame in the corresponding constraint plate group 12. The construction platform 11 is equipped with adjustment components 5 connected to each adjustment cylinder 41, which are used to drive each adjustment cylinder 41 to rotate together.

[0024] With this design, when the construction platform 11 moves above each steel reinforcement frame and the corresponding wall template 121 moves to the predetermined position outside the corresponding steel reinforcement frame, the adjusting component 5 works to drive each adjusting cylinder 41 to rotate together. At this time, each adjusting cylinder 41 drives the two corresponding wall templates 121 to move away from each other through the two corresponding first adjusting rods 42 until the corresponding wall template 121 moves to one side of the inner wall of the corresponding steel reinforcement frame. This allows the spacing between the two corresponding wall templates 121 to be adjusted according to the actual specifications of the wall, thus improving applicability.

[0025] It should be noted that the outer side and inner side of the steel reinforcement frame mentioned above refer to the outer and inner sides of the wall after the concrete is poured on the steel reinforcement frame to form the wall.

[0026] In one embodiment, the adjustment component 5 includes a first power unit 51 disposed on the construction platform 11; It also includes a chain drive assembly 52 connected to each adjusting cylinder 41, the corresponding end of which is connected to the moving end of the first power unit 51, through which the first power unit 51 drives each adjusting cylinder 41 to rotate together.

[0027] With this design, when it is necessary to adjust the spacing between the two wall templates 121 in each constraint plate group 12, the first power unit 51 works to drive each adjusting cylinder 41 to rotate through the chain drive group 52, thereby driving each wall template 121 corresponding to the inner wall of the wall to move closer to or away from the culvert axis, thus adapting to walls of different thicknesses and improving applicability.

[0028] Preferably, the first power unit 51 can be an electric motor from the prior art.

[0029] It should be noted that the chain drive assembly 52 includes multiple sprockets 521 respectively disposed on the moving end of the first power unit 51 and on each adjusting cylinder 41, and chains 522 connecting each sprocket 521. When the first power unit 51 is working, the sprockets 521 disposed on the first power unit 51 drive each sprocket 521 to rotate through the chains 522, thereby realizing the synchronous rotation of each adjusting cylinder 41.

[0030] In one embodiment, each constraint plate group 12 has a toothed rack 14 on the wall formwork 121 corresponding to the inner side of the corresponding steel reinforcement frame; The construction platform 11 is equipped with two demolding components 6, each demolding component 6 corresponding to the outer wall template 121 of the corresponding steel frame. The demolding component 6 includes a second power unit 61 and a gear 62 installed on the construction platform 11. The gear 62 is rotatably mounted on the construction platform 11 and meshes with the rack 14 on the corresponding wall template 121. The gear 62 is connected to the moving end of the second power unit 61. The second power unit 61 drives the corresponding wall template 121 to move closer to or away from the steel reinforcement frame through the gear 62.

[0031] With this design, when the concrete strength of the wall reaches the predetermined value, the first power unit 51 drives each connecting rod 4 to work through the chain drive group 52, so that the wall template 121 corresponding to the inner side of each steel frame moves towards the direction of the culvert axis, so as to demold the inner wall of the steel frame. Subsequently, each second power unit 61 drives the corresponding gear 62 to rotate, and each gear 62 meshes with the corresponding rack 14 to drive the corresponding wall formwork 121 to move away from the culvert axis in order to demold the outer wall of the steel frame.

[0032] Preferably, the second power unit 61 can be a motor from the prior art.

[0033] It should be noted that before separating each wall formwork 121 from the concrete, the workers should tap each wall formwork 121 with appropriate force to make it vibrate, thereby creating a gap between each wall formwork 121 and the corresponding concrete, so that the subsequent demolding of each wall formwork 121 from the concrete is smoother.

[0034] In one embodiment, each constraint plate group 12 has a plastic plate 15 vertically slidably mounted on the wall template 121 corresponding to the inner side of the steel reinforcement frame. The plastic plate 15 is arranged in an "L" shape and is used for the cover plate seat groove on the plastic steel reinforcement frame. The construction platform 11 is also threaded with two second adjusting rods 7, each of which is rotatably connected to the corresponding plastic plate 15 to drive its vertical lifting and lowering movement.

[0035] With this design, before pouring, the workers rotate each of the second adjusting rods 7 to move the corresponding plastic plate 15 vertically up and down until it moves to the predetermined position. Then, when pouring concrete, the plastic plate 15 constrains the filling range of the concrete, thereby determining and shaping the cover plate seat groove on the wall, so as to adapt to cover plate seat grooves of different specifications and further improve applicability.

[0036] In one embodiment, each wall template 121 is composed of multiple separable and connectable panels 1211, and adjacent panels 1211 are connected by bolts.

[0037] With this design, before setting up the construction platform 11, the workers connect the corresponding number of panels 1211 according to the predetermined specifications of the steel reinforcement frame, so that the specifications of each wall formwork 121 correspond to the specifications of the steel reinforcement frame, improving applicability; the bolt connection between each panel 1211 can effectively ensure the connection stability.

[0038] It should be noted that multiple reinforcing ribs are provided between adjacent panels 1211 to increase connection stability and enhance the overall strength of the wall formwork 121.

[0039] In one embodiment, the construction platform 11 and the ladder 2 are equipped with guardrails 8 around them to provide a safe construction environment for workers and reduce the risk of workers falling accidentally.

[0040] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0041] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0042] Additionally, "multiple" refers to two or more.

[0043] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A culvert slipform device, characterized in that, include: It consists of a pouring platform (1), a ladder frame (2), a plug plate (3), and multiple connecting rods (4); The pouring platform (1) consists of a construction platform (11), two constraint plate groups (12), and a moving part (13); The construction platform (11) is set above the two rows of steel reinforcement frames to support workers and provide them with a construction platform; Each of the aforementioned constraint plate groups (12) corresponds one-to-one with each steel reinforcement frame. Each constraint plate group (12) is composed of two wall templates (121) respectively set on both sides of the corresponding steel reinforcement frame and multiple support beams (122). Each of the wall formwork (121) is used to support and shape the concrete; Each of the support beams (122) is evenly distributed on the corresponding wall formwork (121) and connected to the construction platform (11) to support the wall formwork (121); The ladder (2) is located on one side of the pouring platform (1) to facilitate workers to climb onto the pouring platform (1); Each of the end plates (3) is detachably installed at both ends of the two corresponding wall templates (121) to separate the steel reinforcement frame; Each connecting rod (4) is vertically distributed between the two constraint plate groups (12) to support the corresponding wall template (121).

2. The culvert slipform device according to claim 1, characterized in that: Each wall formwork (121) and support beam (122) is slidably set on the construction platform (11); The connecting rod (4) is composed of an adjusting cylinder (41) and two first adjusting rods (42); Each of the aforementioned adjusting cylinders (41) is rotatably mounted on the construction platform (11), and has two threaded sections with opposite directions of rotation inside; Each of the first adjusting rods (42) is threaded onto the corresponding end of the adjusting cylinder (41), and its other end is connected to the corresponding wall template (121) in the corresponding constraint plate group (12); The construction platform (11) is provided with an adjustment component (5) connected to each of the adjustment cylinders (41) for driving each of the adjustment cylinders (41) to rotate together.

3. The culvert sliding formwork device according to claim 2, characterized in that: The adjustment component (5) includes a first power unit (51) and a chain drive assembly (52); The first power unit (51) is mounted on the construction platform (11), and its moving end is connected to one end of the chain drive assembly (52); The chain drive assembly (52) is connected to each of the adjusting cylinders (41), and the first power unit (51) drives each of the adjusting cylinders (41) to rotate together.

4. The culvert slipform device according to claim 1, characterized in that: Each of the wall formwork (121) corresponding to the outer side of each steel reinforcement frame is provided with a toothed rack (14); Two demolding components (6) are provided opposite to each other on the construction platform (11). The demolding components (6) include a second power unit (61) and a gear (62) provided on the construction platform (11). The gear (62) is rotatably mounted on the construction platform (11) and located on one side of the wall template (121). The gear (62) is connected to the moving end of the second power unit (61) and meshes with the corresponding rack (14). The second power unit (61) drives the corresponding wall template (121) to move closer to or away from the wall through the gear (62).

5. The culvert sliding formwork device according to claim 1, characterized in that; Each wall template (121) corresponding to the inner side of each steel reinforcement frame is provided with a vertically sliding plastic plate (15) for forming the cover plate seat groove on the wall; The construction platform (11) is also threaded with two second adjusting rods (7), each of which is rotatably connected to the corresponding plastic plate (15) to drive it to move vertically up and down.

6. The culvert sliding formwork device according to claim 1, characterized in that; Each of the wall templates (121) is composed of multiple panels (1211) that can be separably connected to each other, and adjacent panels (1211) are connected by bolts.

7. The culvert sliding formwork device according to claim 1, characterized in that; Both the construction platform (11) and the ladder (2) are equipped with guardrails (8).

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