An automatic formwork system for a concrete retaining wall

Abstract

The utility model discloses a concrete retaining wall automatic lifting template system, its characterized in that: the system includes two symmetrical distribution's crossbeam (1), and every crossbeam (1)'s bottom end surface all with two symmetrical distribution's vertical support column (2) are connected, and the bottom of vertical support column (2) is provided with through -core hydraulic cylinder (3), and simultaneously crossbeam (1) top end surface's both ends still respectively set up one horizontal -moving hydraulic cylinder (4), and the working end of horizontal -moving hydraulic cylinder (4) is connected with the end of longitudinal beam (5), that is, two crossbeams (1) and two longitudinal beams (5) form the structure of frame type together, and longitudinal beam (5) can reciprocate sliding in the transverse direction relative to crossbeam (1), and three sub crossbeams (6) are provided on longitudinal beam (5) at equal intervals, and the end of sub crossbeam (6) is connected with the top of inclined hydraulic cylinder (7), and the working end of inclined hydraulic cylinder (7) is connected with template (8) through posture adjusting mechanism.

Description

Technical Field

[0001] This utility model relates to the field of highway construction, and in particular to an automatic lifting formwork system for concrete retaining walls. Background Technology

[0002] With my country's economic development and technological progress, its highway construction capabilities and standards have gradually improved, and the total mileage of highways has firmly established itself as the world's largest. As the total mileage of highways continues to expand, highways are gradually extending into mountainous areas. In mountainous regions with complex terrain and topography, more and more roadbed retaining structures will be used.

[0003] Traditional concrete retaining wall construction methods involve hoisting equipment and manual labor to erect formwork, resulting in low construction efficiency. Furthermore, as the retaining wall gradually rises, the safety risks also increase. Data shows that falls from heights account for the highest proportion of construction accidents.

[0004] The existing construction process for retaining wall formwork installation involves using cranes to hoist the formwork to the top of the completed retaining wall, followed by manual installation and positioning. This process requires one crane and 6-8 workers, consuming significant manpower and resulting in extremely low efficiency. Furthermore, workers are operating at heights during installation, posing high safety risks. After manual installation, fine-tuning of the formwork position is impossible, leading to low installation accuracy and hindering the achievement of quality targets. Therefore, a method or device is needed to solve these problems. Summary of the Invention

[0005] This utility model addresses existing technical challenges by proposing an automatic lifting formwork system for concrete retaining walls that is simple in structure, ingeniously designed, convenient and quick to construct, highly efficient, and free of safety hazards.

[0006] The technical solution of this utility model is: an automatic lifting formwork system for concrete retaining walls, characterized in that: the system includes two symmetrically distributed horizontal beams 1, the bottom end of each horizontal beam 1 is connected to two symmetrically distributed vertical support columns 2, the bottom of each vertical support column 2 is provided with a through-hole hydraulic cylinder 3, and at the same time, each end of the top surface of the horizontal beam 1 is provided with a transverse hydraulic cylinder 4, the working end of the transverse hydraulic cylinder 4 is connected to the end of a longitudinal beam 5, that is, the two horizontal beams 1 and the two longitudinal beams 5 together form a frame structure, and the longitudinal beams 5 can slide back and forth in the transverse direction relative to the horizontal beams 1.

[0007] Three secondary crossbeams 6 are evenly spaced on the longitudinal beam 5. The ends of the secondary crossbeams 6 are connected to the top of the tilting hydraulic cylinder 7, and the working end of the tilting hydraulic cylinder 7 is connected to the template 8 through a posture adjustment mechanism.

[0008] The posture adjustment mechanism includes a first adjustment rod 9 hinged to the working end of the tilting hydraulic cylinder 7. The bottom end of the first adjustment rod 9 is rotatably connected to a second adjustment rod 10, and the top end of the first adjustment rod 9 is hinged to an adjustment hydraulic cylinder 11. The working end of the adjustment hydraulic cylinder 11 is rotatably connected to the top end of the second adjustment rod 10. The second adjustment rod 9 is fixedly connected to two transverse ribs 12 provided on the outer side of the template 8.

[0009] Compared with the prior art, this utility model has the following advantages:

[0010] This type of automatic lifting formwork for concrete retaining walls features a simple structure, ingenious design, and rational layout. Addressing the numerous problems associated with traditional formwork installation methods involving hoisting equipment and manual labor, such as excessive manpower and material consumption, low construction efficiency, and high safety risks, it employs a unique structure. After concrete pouring, a hydraulic device separates the retaining wall formwork approximately 10 centimeters from the concrete surface. Driven by a hydraulic system, the formwork automatically rises or falls. During construction, the formwork rises layer by layer as concrete is poured. After each layer is completed, the formwork is inverted and reused for the next work surface. Simultaneously, the device, through hydraulic system adjustments, can be customized to different sizes and orientations of retaining walls of varying dimensions and shapes, ensuring the accuracy and versatility of the formwork installation. This device is easy to operate, saves materials and labor, reduces labor intensity, lowers safety risks, improves construction efficiency, enhances construction quality, shortens the construction period, and promotes civilized construction. It offers significant technical, economic, safety, and environmental benefits, possessing multiple advantages and making it particularly suitable for widespread application in this field, with a very broad market prospect. Attached Figure Description

[0011] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model (working state one).

[0012] Figure 2 This is a structural schematic diagram of an embodiment of the present utility model (working state two).

[0013] Figure 3 This is a structural schematic diagram of an embodiment of the present utility model (working state three). Detailed Implementation

[0014] The specific embodiments of this utility model will be described below with reference to the accompanying drawings. Figures 1 to 3The diagram illustrates an automatic lifting formwork system for a concrete retaining wall. The system comprises two symmetrically distributed horizontal beams 1, each horizontal beam 1 having its bottom end connected to two symmetrically distributed vertical support columns 2. A hydraulic cylinder 3 is installed at the bottom of each vertical support column 2. Simultaneously, a horizontally moving hydraulic cylinder 4 is installed at each end of the top surface of each horizontal beam 1. The working end of each horizontally moving hydraulic cylinder 4 is connected to the end of a longitudinal beam 5. Thus, the two horizontal beams 1 and the two longitudinal beams 5 together form a frame structure, and the longitudinal beams 5 can slide reciprocally relative to the horizontal beams 1 in the lateral direction.

[0015] Three secondary crossbeams 6 are evenly spaced on the longitudinal beam 5. The ends of the secondary crossbeams 6 are connected to the top of the tilting hydraulic cylinder 7, and the working end of the tilting hydraulic cylinder 7 is connected to the template 8 through a posture adjustment mechanism.

[0016] The posture adjustment mechanism includes a first adjustment rod 9 hinged to the working end of the tilting hydraulic cylinder 7. The bottom end of the first adjustment rod 9 is rotatably connected to a second adjustment rod 10, and the top end of the first adjustment rod 9 is hinged to an adjustment hydraulic cylinder 11. The working end of the adjustment hydraulic cylinder 11 is rotatably connected to the top end of the second adjustment rod 10. The second adjustment rod 9 is fixedly connected to two transverse ribs 12 provided on the outer side of the template 8.

[0017] The working process of the automatic lifting formwork system for concrete retaining walls according to this embodiment of the utility model is as follows:

[0018] 1. Initial stage:

[0019] First, place the device on the completed retaining wall foundation or retaining wall segment, ensuring that the piston ends of the through-hole hydraulic cylinders 3 built into the bottom of the four vertical support columns 2 of the system are in close contact with and firmly supported by the completed retaining wall foundation or retaining wall segment concrete. Fine-tune the lateral movement hydraulic cylinder 4, the tilting hydraulic cylinder 7, and the adjusting hydraulic cylinder 11 to adjust the posture of the formwork 8, allowing the formwork 8 to detach from the poured concrete while preserving space for upward lifting. Figure 1 As shown;

[0020] 2. Peaking Phase:

[0021] The control system sends a signal to the hydraulic cylinder 3, causing it to extend and lift. This causes the cylinder body and the vertical support column 2 to rise at a constant speed relative to the first section of the retaining wall foundation or concrete segment that has been poured. At this time, the frame structure composed of two horizontal beams 1 and two longitudinal beams 5 rises as a whole. After reaching the predetermined height, the hydraulic system of the hydraulic cylinder 3 is shut off, and the hydraulic cylinder 3 locks. Figure 2 As shown;

[0022] 3. Positioning Phase:

[0023] The control system sends a signal to the transverse hydraulic cylinder 4, which drives the longitudinal beam 5 and all its mechanisms to move along the direction of the transverse beam 1. The template 8 is then adjusted horizontally and reaches the predetermined position. The hydraulic system associated with the transverse hydraulic cylinder 4 is shut down, and the transverse hydraulic cylinder 4 is locked. Then, the control system sends a signal to the tilting hydraulic cylinder 7 and the adjusting hydraulic cylinder 11. The actions of the two cylinders will drive the template 8 to make fine adjustments to its posture in space, ensuring that the template 8 is accurately positioned and meets the design requirements. Then, the relevant hydraulic system is shut down, and the two hydraulic cylinders mentioned above are locked.

[0024] The formwork 8 is secured using tie rods. One end of the tie rod is fixed to the pre-embedded ground anchor steel bars in the poured concrete, and the other end is fixed to the transverse rib 12. At this point, the formwork 8 is accurately positioned and firmly fixed, thus completing the formwork installation.

[0025] Restart hydraulic cylinder 4 to raise the lower end of its piston above the elevation of the top surface of the concrete to be poured, completing the conversion of the formwork support system and reserving space for concrete pouring. Figure 3 As shown;

[0026] 4. Demolding stage:

[0027] After the concrete is poured and cured to the designated age, the tie rod joint is loosened, and a signal is sent to the tilting hydraulic cylinder 7 and the adjusting hydraulic cylinder 11 to drive the formwork 8 for fine adjustment, allowing the formwork 8 to separate from the concrete wall surface, ensuring a gap of approximately 10 cm between them. The two hydraulic cylinders are then locked, and the transverse hydraulic cylinder 4 is driven to operate, moving the longitudinal beam 5 and creating space for the formwork 8 to rise. The through-core hydraulic cylinder 4 is then restarted, ensuring that the piston end of the through-core hydraulic cylinder 4 is firmly attached to and supported by the poured retaining wall segment concrete, thus completing the removal of the formwork 8. Figure 1 As shown.

[0028] Repeat the lifting, positioning, and formwork removal stages until the concrete retaining wall is poured. Once pouring is complete, the formwork is reused on the next work surface for the next round of construction.

Claims

1. An automatic lifting formwork system for concrete retaining walls, characterized in that: The system includes two symmetrically distributed crossbeams (1). The bottom end of each crossbeam (1) is connected to two symmetrically distributed vertical support columns (2). A through-hole hydraulic cylinder (3) is provided at the bottom of each vertical support column (2). At the same time, a transverse hydraulic cylinder (4) is provided at each end of the top surface of the crossbeam (1). The working end of the transverse hydraulic cylinder (4) is connected to the end of the longitudinal beam (5). That is, the two crossbeams (1) and the two longitudinal beams (5) together form a frame structure, and the longitudinal beam (5) can slide back and forth in the transverse direction relative to the crossbeam (1). Three secondary crossbeams (6) are equally spaced on the longitudinal beam (5). The ends of the secondary crossbeams (6) are connected to the top of the tilting hydraulic cylinder (7), and the working end of the tilting hydraulic cylinder (7) is connected to the template (8) through a posture adjustment mechanism. The posture adjustment mechanism includes a first adjustment rod (9) hinged to the working end of the tilting hydraulic cylinder (7). The bottom end of the first adjustment rod (9) is rotatably connected to the second adjustment rod (10), and the top end of the first adjustment rod (9) is hinged to an adjustment hydraulic cylinder (11). The working end of the adjustment hydraulic cylinder (11) is rotatably connected to the top end of the second adjustment rod (10). The second adjustment rod (9) is fixedly connected to two transverse ribs (12) provided on the outside of the template (8).

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