Cantilever formwork hoisting tool for double-curvature arch dam

Abstract

The utility model discloses a cantilever template hoisting tool for a double-curvature arch dam, which comprises at least three supporting legs used for being supported on the top surface of poured and solidified concrete, a top frame connected with all the supporting legs and a top frame connected with the top frame, the tops of at least two supporting legs are intersected on a first fulcrum, and at least one supporting leg does not pass through the first fulcrum. The first supporting point is located on the top frame, the top frame is provided with a second supporting point, the supporting feet not passing through the first supporting point all pass through the second supporting point, the first supporting point is higher than the second supporting point, and the direction from the first supporting point to the second supporting point is from front to back. A fixing rope used for being fixed to the top face of poured and solidified concrete is arranged at the rear end of the top frame. The cantilever formwork lifting device is simple in structure and can be supported on poured and solidified concrete to lift a cantilever formwork.

Description

Technical Field

[0001] This utility model relates to the field of lifting device technology, specifically to a cantilever formwork hoisting tool for a hyperbolic arch dam. Background Technology

[0002] A hyperbolic arch dam is an arch dam that bends in both directions (horizontally and vertically). It is the most representative type of arch dam. The horizontal curvature of a hyperbolic arch dam allows it to function as an arch, while the vertical curvature allows for changes in the center and radius to adjust the curvature and radius of the upper and lower parts of the dam.

[0003] When the abutments on both sides of a double-curvature arch dam are steep cliffs, the existing roads cannot meet the requirements for construction machinery to enter the site for conventional concrete pouring. After pouring one layer, it is difficult to continue to lift the cantilever formwork upwards. Utility Model Content

[0004] The purpose of this utility model is to provide a cantilever formwork hoisting tool for hyperbolic arch dams. It has a simple structure and can lift the cantilever formwork by supporting it on the poured and solidified concrete.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following solution:

[0006] A cantilever formwork hoisting fixture for a hyperbolic arch dam includes at least three legs for support on a solidified concrete surface. At least two legs converge at a first support point, and at least one leg does not pass through the first support point. The fixture also includes a top frame connected to all legs. The first support point is located on the top frame, which has a second support point. All legs not passing through the first support point pass through the second support point. The first support point is higher than the second support point. The direction from the first support point to the second support point is considered front to back. The front end of the top frame has a lifting device for hoisting the cantilever formwork, and the rear end has a fixing rope for securing it to the solidified concrete surface. The lifting device uses existing technology, such as an electric hoist, and will not be described in detail. The fixing rope is a steel wire rope, fixed to the concrete by ground anchors. Both the fixing rope and the ground anchors are existing technology and will not be described in detail. Its function is to support the lifting device and the cantilever formwork lifted by the lifting device through the setting of the support legs and the top frame. The structure is simple and can support the cantilever formwork on the poured and solidified concrete.

[0007] Furthermore, it also includes a base frame, which is connected to all the legs. Its function is to prevent the legs from separating when under stress.

[0008] Furthermore, the base frame includes connecting rods, with one connecting rod connecting every two adjacent legs. The function of these connecting rods is to prevent the two adjacent legs from separating, thus improving overall stability.

[0009] Furthermore, all the legs that converge at the first fulcrum are located on the same plane. This design, through the spatial relationship between all the legs converging at the first fulcrum, enhances the overall structural strength of all the legs converging at the first fulcrum and strengthens the support for the top frame at the first fulcrum.

[0010] Furthermore, a reinforcing rod is connected between every two adjacent legs that meet at the first fulcrum. The reinforcing rod is located above the connecting rod. Its function is to enhance the structural strength between all adjacent legs that meet at the first fulcrum.

[0011] Furthermore, all connecting rods and reinforcing rods are installed parallel to the already poured and solidified concrete surface. This design ensures that the connecting rods and reinforcing rods are subjected to uniform stress through the spatial relationship between them and the concrete surface.

[0012] Furthermore, there are three legs in total, two of which are connected to the top frame and intersect at the first support point, and the remaining leg is connected to the top frame and intersects at the second support point.

[0013] Furthermore, the top frame is in the shape of a straight rod, and a reinforcing rib is provided on the top surface of the top frame. Its function is to enhance the structural strength of the top frame by providing a reinforcing rib.

[0014] Furthermore, a reinforcing bottom rib is provided on the bottom surface of the top of the top frame, and a suspension hole for suspending the lifting device is provided through the reinforcing bottom rib.

[0015] Furthermore, the bottom end of the top frame is connected to the fixing rope via turnbuckles, and the bottom end of the top frame is equipped with a hanging ring for suspending the turnbuckles. The purpose of the turnbuckles is to allow adjustment of the tension of the fixing rope.

[0016] The beneficial effects of this utility model are:

[0017] 1. The support legs and top frame provide support for the lifting device and the cantilever formwork lifted by the lifting device. The structure is simple and can support the cantilever formwork on the poured and solidified concrete. 2. The base frame prevents the support legs from separating when under stress. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of Example 1 (the lifting device, fixing rope, and turnbuckle are not shown).

[0019] Reference numerals: 1. Support leg; 2. First support point; 3. Top frame; 4. Second support point; 5. Connecting rod; 6. Reinforcing rod; 7. Reinforcing top rib; 8. Reinforcing bottom rib; 9. Hanging hole; 10. Lifting ring. Detailed Implementation

[0020] The present invention will be further described in detail below with reference to the embodiments and accompanying drawings, but the implementation of the present invention is not limited thereto.

[0021] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inner", "outer", "front", "rear", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "have," "install," "connect," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] Example 1

[0024] A cantilever formwork hoisting tool for hyperbolic arch dams, such as Figure 1As shown, the formwork includes at least three legs 1 for supporting the solidified concrete surface. At least two legs 1 intersect at a first support point 2, and at least one leg 1 does not pass through the first support point 2. The formwork also includes a top frame 3 connected to all legs 1. The first support point 2 is located on the top frame 3. A second support point 4 is provided on the top frame 3. All legs 1 not passing through the first support point 2 pass through the second support point 4. The height of the first support point 2 is higher than that of the second support point 4. Taking the direction from the first support point 2 towards the second support point 4 as front to back, the front end of the top frame 3 is equipped with a lifting device for lifting the cantilever formwork, and the rear end of the top frame 3 is equipped with a fixing rope for securing it to the solidified concrete surface. The lifting device uses existing technology, such as an electric hoist, and will not be described in detail. The fixing rope is a steel wire rope, fixed to the concrete by ground anchors. Both the fixing rope and the ground anchors are existing technology and will not be described in detail. Its function is to support the lifting device and the cantilever formwork lifted by the lifting device through the setting of the support leg 1 and the top frame 3. The structure is simple and can support the cantilever formwork on the poured and solidified concrete.

[0025] Specifically, such as Figure 1 As shown, it also includes a base frame, which is connected to all the legs 1. Its function is to prevent the legs 1 from separating from each other when under stress by setting up the base frame.

[0026] Specifically, such as Figure 1 As shown, the base frame includes connecting rods 5, with one connecting rod 5 connecting every two adjacent support legs 1. The function of the connecting rods 5 is to prevent the separation of two adjacent support legs 1, thereby improving overall stability.

[0027] Specifically, such as Figure 1 As shown, all the legs 1 that converge at the first fulcrum 2 are located on the same plane. This design, through the spatial relationship between all the legs 1 converging at the first fulcrum 2, enhances the overall structural strength of all the legs 1 converging at the first fulcrum 2, and strengthens the support strength of the top frame 3 at the first fulcrum 2.

[0028] Specifically, such as Figure 1 As shown, a reinforcing rod 6 connects every two adjacent legs 1 that intersect at the first fulcrum 2. The reinforcing rod 6 is located above the connecting rod 5. Its function is to enhance the structural strength between all adjacent legs 1 that intersect at the first fulcrum 2 through the installation of the reinforcing rod 6.

[0029] Specifically, such as Figure 1 As shown, all connecting rods 5 and reinforcing rods 6 are installed parallel to the poured and solidified concrete surface. Their function is to ensure that the connecting rods 5 and reinforcing rods 6 are subjected to uniform stress through the design of their spatial relationship with the concrete surface.

[0030] Specifically, such as Figure 1 As shown, there are three support legs 1 in total. Two of the support legs 1 are connected to the top frame 3 and intersect at the first support point 2, while the remaining support leg 1 is connected to the top frame 3 and intersects at the second support point 4.

[0031] Specifically, such as Figure 1 As shown, the top frame 3 is in the shape of a straight rod, and a reinforcing top rib 7 is provided on the top surface of the top frame 3. Its function is to enhance the structural strength of the top frame 3 by setting the reinforcing top rib 7.

[0032] Specifically, such as Figure 1 As shown, the top bottom surface of the top frame 3 is provided with a reinforcing bottom rib 8, and a suspension hole 9 for suspending the lifting device is provided through the reinforcing bottom rib 8.

[0033] Specifically, such as Figure 1 As shown, the bottom end of the top frame 3 is connected to the fixing rope via a turnbuckle, and a hanging ring 10 for suspending the turnbuckle is provided on the bottom end of the top frame 3. Its function is to adjust the tension of the fixing rope by means of the turnbuckle.

[0034] The working principle of this embodiment is explained as follows: First, hang the turnbuckle on the lifting ring 10, connect one end of the fixing rope to the turnbuckle, and connect the other end to the concrete through the ground anchor. Start the lifting device, scrape the hook of the lifting device onto the cantilever formwork, and then the cantilever formwork can be lifted.

[0035] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications, equivalent substitutions, and improvements made to the above embodiments based on the technical essence of the present utility model and within the spirit and principles of the present utility model shall still fall within the protection scope of the present utility model.

Claims

1. A cantilever formwork hoisting tool for double-curvature arch dams, characterized in that: It includes at least three legs (1) for supporting on the top surface of the poured and solidified concrete, at least two legs (1) meet at the top of the first support point (2), at least one leg (1) does not pass through the first support point (2), and also includes a top frame (3) connected to all legs (1), the first support point (2) is located on the top frame (3), the top frame (3) is provided with a second support point (4), the legs (1) that do not pass through the first support point (2) all pass through the second support point (4), the height of the first support point (2) is higher than the second support point (4), with the direction from the first support point (2) toward the second support point (4) as front to back, the front end of the top frame (3) is provided with a lifting device for lifting the cantilever formwork, and the rear end of the top frame (3) is provided with a fixing rope for fixing to the top surface of the poured and solidified concrete.

2. The cantilever formwork hoisting tooling for double-curvature arch dam according to claim 1, characterized in that: It also includes a base frame, which is connected to all the legs (1).

3. The cantilever formwork hoisting tooling for double curvature arch dams according to claim 2, characterized in that: The base frame includes connecting rods (5), with one connecting rod (5) connecting every two adjacent legs (1).

4. The cantilever formwork hoisting tooling for double-curvature arch dam according to claim 2, characterized in that: All the legs (1) that meet at the first fulcrum (2) are located on the same plane.

5. The cantilever formwork hoisting tooling for double curvature arch dams as claimed in claim 4 wherein: A reinforcing rod (6) is connected between each pair of adjacent legs (1) that meet at the first fulcrum (2).

6. The cantilever formwork hoisting tooling for double curvature arch dams as claimed in claim 5 wherein: All connecting rods (5) and reinforcing rods (6) are set parallel to the top surface of the poured and solidified concrete.

7. The cantilever formwork hoisting tool for double-curvature arch dam according to claim 2, characterized in that: There are three legs (1), two of which are connected to the top frame (3) and meet at the first support point (2), and the remaining leg (1) is connected to the top frame (3) and meets at the second support point (4).

8. The cantilever formwork hoisting tool for double-curvature arch dam according to claim 1, characterized in that: The top frame (3) is in the shape of a straight rod, and a reinforcing top rib (7) is provided on the top surface of the top frame (3).

9. The cantilever formwork hoisting tool for double-curvature arch dam according to claim 8, characterized in that: The top of the top frame (3) is provided with a reinforcing bottom rib (8), and a suspension hole (9) for suspending the lifting device is provided through the reinforcing bottom rib (8).

10. The cantilever formwork hoisting tool for double-curvature arch dam according to claim 1, characterized in that: The bottom end of the top frame (3) is connected to the fixing rope by a turnbuckle, and the bottom end of the top frame (3) is provided with a hanging ring (10) for hanging the turnbuckle.

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