High-strength prestressed concrete pipe pile free of autoclaving curing

Abstract

The utility model relates to the technical field of concrete pipe piles, and discloses a high-strength prestressed concrete pipe pile free of autoclaving curing, which comprises a pipe pile main body, end plates are fixedly connected to two ends of the pipe pile main body, a suspension frame is fixedly connected to the inner side of each end plate, the end part of each suspension frame is arranged in a cross shape, and a sliding block is connected to each end plate in a sliding manner. According to the high-strength prestressed concrete pipe pile free of autoclaving curing, before the pipe pile body is lifted through a crane, the lifting rope can be bound to the suspension frame, then the pipe pile body is lifted, and due to the fact that the suspension frame is closer to the central axis of the pipe pile body, after the lifting rope is bound to the suspension frame, when the pipe pile body is lifted, the pipe pile body is lifted, and the lifting rope is not prone to falling off. And the pipe pile main body can be more easily kept in a vertical state and is not prone to inclination, and the pipe pile main body can be conveniently installed on a pile driver.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete pipe piles, in particular to a high-strength prestressed concrete pipe pile free of pressure steam curing. Background Art

[0002] PHC pipe piles, that is, prestressed high-strength concrete pipe piles. In the production process of traditional prestressed high-strength centrifugal concrete pipe piles, the pipe piles need to be placed in 200℃ steam and 1MPa pressure for autoclaving. Under autoclaving conditions, ground quartz sand can react with cement to generate high-strength tobermorite, so that the pipe piles can obtain a high strength of more than 80MPa in a short time. In the prior art, when producing pipe piles, mineral admixtures, chemical additives, high-efficiency water reducers, optimized mix ratios and other means are often used to obtain a concrete pipe pile that meets the requirements of autoclaving-free curing.

[0003] As in the prior art, the patent with the patent authorization announcement number CN217378873U discloses a high-strength prestressed concrete pipe pile without autoclave curing, including a pipe pile body, buckles are integrally connected at both ends of the pipe pile body, the buckle ring is provided with a buckle groove, the buckle groove is provided with a threaded bottom hole, a reinforcement ring is installed at the center of the pipe pile body, a flow channel is provided inside the reinforcement ring, the reinforcement ring is provided with a notch communicating with the flow channel, the reinforcement ring is provided with a socket, and a connecting piece is matched and installed on the pipe pile body, the connecting piece includes a base ring with the same size as the outer diameter of the buckle ring, inner cylinders are integrally connected on both sides of the base ring, buckle blocks matching the size of the buckle groove are connected on both sides of the base ring, a concrete pipe is fixedly connected in the buckle block, the buckle block is provided with a through hole corresponding to the position of the threaded bottom hole, the through hole penetrates the concrete pipe, and the through hole and the threaded bottom hole are matched with locking screws.

[0004] Although the concrete pipe piles in the above patent can conveniently complete the connection between the two pipe pile bodies, the existing concrete pipe piles have certain defects; since the surface of the pipe piles is relatively smooth and there is no position for fixing the lifting rope, the crane can only tie the lifting rope directly to the outside of the pipe pile when lifting the pipe pile to the pile driver position. This binding method makes it difficult to make the two ends of the lifting rope evenly located on both sides of the pipe pile, which causes the pipe pile to often tilt at a certain angle during the lifting process, so that the crane needs to make repeated adjustments when placing the pipe pile into the pile driver. Therefore, the current pipe piles are extremely inconvenient to lift. Utility Model Content

[0005] In view of the deficiencies of the prior art, the utility model provides a high-strength prestressed concrete pipe pile that does not require pressure steam curing to solve the problems raised by the background technology and make it easier for the pipe pile body to maintain a vertical state during hoisting.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a high-strength prestressed concrete pipe pile that does not require pressure steam curing, including a pipe pile body, both ends of the pipe pile body are fixedly connected to end plates, the inner side of the end plate is fixedly connected to a suspension frame, the end of the suspension frame is cross-shaped, and a slider is slidably connected to the end plate.

[0007] Furthermore, four slide grooves are provided on the end plate and the suspension frame, the slide grooves are equidistantly distributed, the slide grooves match the sliding blocks, and the ends of the slide grooves are arranged in a trapezoidal shape.

[0008] Furthermore, the shape of the end of the slider is two symmetrically arranged trapezoids.

[0009] Furthermore, a receiving groove is provided at one end of the sliding block away from the pipe pile body, a rotating shaft is fixedly connected to the lower end of the receiving groove, a stop block is rotatably connected inside the receiving groove, and a rotating groove matching the rotating shaft is provided at the lower end of the stop block.

[0010] Furthermore, the width of the lower end of the stop block is smaller than the width of the upper end of the stop block.

[0011] Furthermore, the cross section of the rotating shaft is T-shaped.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] For this type of high-strength prestressed concrete pipe pile that does not require pressure steaming for curing, the lifting rope can be tied to the suspension frame before the main body of the pipe pile is lifted by a crane, and then the main body of the pipe pile can be lifted. Since the suspension frame is closer to the central axis of the main body of the pipe pile, after the lifting rope is tied to the suspension frame, when the main body of the pipe pile is lifted, the main body of the pipe pile is easier to maintain a vertical state and is not prone to tilting, which facilitates the installation of the main body of the pipe pile on the pile driver. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the end plate of the utility model;

[0016] Figure 3 It is a structural schematic diagram of the slider of the utility model.

[0017] In the figure: 1. pipe pile body; 2. end plate; 3. suspension frame; 4. slide groove; 5. slider; 6. storage groove; 7. rotating shaft; 8. stop block; 9. rotating groove. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0019] See also Figure 1-3 A high-strength prestressed concrete pipe pile without autoclave curing includes a pipe pile body 1, both ends of the pipe pile body 1 are fixedly connected to end plates 2, the inner side of the end plate 2 is fixedly connected to a suspension frame 3, the end of the suspension frame 3 is cross-shaped, and a slider 5 is slidably connected to the end plate 2.

[0020] The high-strength prestressed concrete pipe piles without pressure steam curing in the utility model can be tied to the suspension frame 3 before using the crane to lift the pipe pile body 1, and then the pipe pile body 1 can be lifted. Since the suspension frame 3 is closer to the central axis position of the pipe pile body 1, after the lifting rope is tied to the suspension frame 3, when the pipe pile body 1 is lifted, the pipe pile body 1 is easier to maintain a vertical state and is not easy to tilt, which is convenient for installing the pipe pile body 1 on the pile driver. At the same time, when it is idle, the slider 5 will contact the ground, thereby supporting and restricting the pipe pile body 1, reducing the probability of rolling of the pipe pile body 1. In addition, the structure of the pipe pile body 1 in the utility model is similar to a high-strength prestressed concrete pipe pile structure without pressure steam curing disclosed in the patent authorization announcement number CN217378873U, so it will not be elaborated on here.

[0021] like Figure 1 , Figure 2 and Figure 3 As shown, four slide grooves 4 are provided on the end plate 2 and the suspension frame 3. The slide grooves 4 are equidistantly distributed, the slide grooves 4 match the sliders 5, and the ends of the slide grooves 4 are arranged in a trapezoidal shape.

[0022] Specifically, when connecting the piles, after aligning the slide grooves 4 of the two pipe pile bodies 1, the slider 5 can be inserted into the slide groove 4, so as to restrict the two pipe pile bodies 1 and prevent the pipe pile body 1 located at the upper layer from shaking during the welding process.

[0023] like Figure 1 and Figure 3 As shown, the shape of the end of the slider 5 is two symmetrically arranged trapezoids. The two sides of the slider 5 can be respectively inserted into the two chute 4, so that the thickness of the slider 5 can be increased, thereby enhancing the strength of the slider 5.

[0024] like Figure 3 As shown, a receiving groove 6 is provided at one end of the slider 5 away from the pile body 1, a rotating shaft 7 is fixedly connected to the lower end of the receiving groove 6, a stop block 8 is rotatably connected inside the receiving groove 6, and a rotating groove 9 matching the rotating shaft 7 is provided at the lower end of the stop block 8.

[0025] Specifically, during the storage of the pile body 1, the slider 5 can be pulled out. After the slider 5 is pulled out from the slide groove 4, the stop block 8 will automatically unfold under the action of gravity, thereby achieving a stop effect and preventing the slider 5 from sliding back into the slide groove 4 when the pile body 1 rolls.

[0026] like Figure 3 As shown, the width of the lower end of the stop block 8 is less than the width of the upper end of the stop block 8. The stop block 8 of such a shape can ensure that the center of gravity of the stop block 8 is at the upper end, so that the stop block 8 is easier to unfold by itself.

[0027] like Figure 3 As shown, the cross section of the rotating shaft 7 is arranged in a T-shape. The rotating shaft 7 arranged in a T-shape has a better limiting effect.

[0028] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention.

Claims

1. A high-strength prestressed concrete pipe pile without autoclave curing, comprising a pipe pile body (1), characterized in that: Both ends of the pipe pile body (1) are fixedly connected to end plates (2), the inner side of the end plates (2) is fixedly connected to a suspension frame (3), the end of the suspension frame (3) is arranged in a cross shape, and a slider (5) is slidably connected to the end plates (2).

2. The high-strength prestressed concrete pipe pile without autoclave curing according to claim 1, characterized in that: Four slide grooves (4) are provided on the end plate (2) and the suspension frame (3). The slide grooves (4) are evenly distributed, the slide grooves (4) match the sliders (5), and the ends of the slide grooves (4) are arranged in a trapezoidal shape.

3. The high-strength prestressed concrete pipe pile without autoclave curing according to claim 1, characterized in that: The shape of the end of the slider (5) is two symmetrically arranged trapezoids.

4. The high-strength prestressed concrete pipe pile without autoclave curing according to claim 1, characterized in that: The end of the sliding block (5) away from the pipe pile body (1) is provided with a receiving groove (6), the lower end of the receiving groove (6) is fixedly connected with a rotating shaft (7), the interior of the receiving groove (6) is rotatably connected with a stop block (8), and the lower end of the stop block (8) is provided with a rotating groove (9) matching the rotating shaft (7).

5. The high-strength prestressed concrete pipe pile without autoclave curing according to claim 4, characterized in that: The width of the lower end of the stop block (8) is smaller than the width of the upper end of the stop block (8).

6. The high-strength prestressed concrete pipe pile without autoclave curing according to claim 4, characterized in that: The cross section of the rotating shaft (7) is T-shaped.

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