Prestressed concrete pipe pile head protection device

Abstract

This utility model relates to the field of prestressed concrete pipe pile technology and discloses a protective device for the head of a prestressed concrete pipe pile, including a protective top plate, two support plates, and two elastic inner support rings. The protective top plate is a flat plate structure, and two support plates are symmetrically fixedly installed at the bottom of the protective top plate. Each support plate has a through hole at its upper and lower ends, and each elastic inner support ring is respectively inserted into the two through holes of the same support plate. When the support plate is fully inserted into the central cavity of the concrete pipe pile, the two elastic inner support rings are squeezed and deformed, thereby pressing against the inner wall of the concrete pipe pile, and the protective top plate completely covers the upper end of the concrete pipe pile. This utility model can effectively cover and protect the upper end of the concrete pipe pile. The installation and operation are simple, time-saving and labor-saving, the installation is stable, and the construction speed is fast. It avoids the problems of time-consuming and labor-intensive welding of steel plates and the impact on construction progress in the prior art, and also avoids the problem of the wooden boards easily shifting or slipping when directly placing them.

Description

Technical Field

[0001] This utility model belongs to the field of prestressed concrete pipe pile technology, specifically, it relates to a prestressed concrete pipe pile head protection device. Background Technology

[0002] Prestressed concrete pipe piles are hollow cylindrical high-strength concrete piles made using the prestressing process. They are mainly used for foundation treatment of buildings. By driving or pressing piles, they are driven into the ground to transfer the load of the superstructure (such as houses, roads, bridges, towers, etc.) to deep, hard soil or rock layers, thereby ensuring that the building does not experience uneven settlement.

[0003] After the construction of prestressed concrete pipe piles is completed, during the earthwork excavation process, soil clods often fall from the pile head opening into the central cavity, causing the pile core to be filled with soil. Removing the soil from the pile core later is time-consuming and labor-intensive, increasing construction costs and affecting the construction schedule. In existing technologies, to prevent soil clods from falling into the prestressed concrete pipe pile core, a steel plate is usually welded or a wooden board is simply placed to cover the opening. However, welding a steel plate is slow and affects the construction schedule, while placing a wooden board is prone to shifting or slipping, causing the opening cover to fail, and time still needs to be spent removing the soil from the pile core later. Utility Model Content

[0004] To solve or partially solve the problems existing in related technologies, this utility model provides a prestressed concrete pipe pile head protection device, which can effectively cover and protect the upper end of the concrete pipe pile. It is simple to install and operate, saves time and labor, has a fast construction speed, and provides stable and reliable coverage and protection for the concrete pipe pile head.

[0005] This application provides a protective device for prestressed concrete pipe pile heads, including a protective top plate, two support plates, and two elastic inner support rings. The protective top plate is a flat plate structure, and two support plates are symmetrically fixedly installed at the bottom of the protective top plate. The two support plates are set perpendicular to the protective top plate and are located in the same vertical plane. Each support plate has a through hole at its upper and lower ends, and each elastic inner support ring passes through the two through holes of the same support plate. Among them, the elastic inner support ring is a circular ring structure under normal conditions. Under normal conditions, the diameter of the elastic inner support ring is larger than the inner diameter of the concrete pipe pile. When the support plate is fully inserted into the central cavity of the concrete pipe pile, the two elastic inner support rings are squeezed and deformed, thus pressing against the inner wall of the concrete pipe pile, and the protective top plate completely covers the upper end of the concrete pipe pile.

[0006] In one alternative, the protective top plate is a circular flat plate structure, with a diameter slightly larger than the outer diameter of the concrete pipe pile.

[0007] In one alternative, at least one carrying handle is installed on the protective top plate.

[0008] In one alternative, the through hole is a strip-shaped hole extending along the extension direction of the support plate, and the width of the through hole is slightly larger than the cross-sectional diameter of the elastic inner support ring.

[0009] In one alternative, the elastic inner support ring is made of spring steel.

[0010] The beneficial effects of this utility model are: This invention involves installing two support plates at the bottom of a protective top plate, with elastic inner support rings on these plates. These inner support rings, under normal conditions, have a diameter larger than the inner diameter of the concrete pipe pile. The protective device is then directly inserted into the upper end of the concrete pipe pile, effectively covering and protecting the upper end of the pile. The elastic contraction and deformation of the inner support rings ensures a tight fit between the protective device and the concrete pipe pile. This facilitates installation while preventing the support plates and inner support rings from easily detaching from the upper end of the concrete pipe pile, thus avoiding coverage failure. The installation is simple, time-saving, labor-saving, stable, and fast. It provides stable and reliable coverage and protection for the concrete pipe pile head, avoiding the time-consuming and labor-intensive methods of welding steel plates (which affect construction progress) and the problems of wooden boards easily shifting or slipping when directly placing them.

[0011] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0012] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the overall structure of the protective device in one embodiment of this application; Figure 2 This is a left-side view of the protective device in one embodiment of this application; Figure 3 This is a front view schematic diagram of the protective device in one embodiment of this application; Figure 4 This is a schematic diagram showing the state of the protective device's support plate and elastic inner support ring placed inside the central cavity of the concrete pipe pile in one embodiment of this application.

[0014] The attached figures are labeled as follows: 1-protective top plate, 2-support plate, 21-through hole, 3-elastic inner support ring, 4-handle ring, 5-concrete pipe pile, 51-central cavity. Detailed Implementation

[0015] The specific embodiments of this application will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this application, but are not intended to limit the scope of this application. Similarly, the following examples are only some embodiments of this application, not all embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0016] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application.

[0017] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0018] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between components; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0019] In this application, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0020] To address the aforementioned problems, this application proposes improvements and innovations, including the following embodiments.

[0021] In one implementation, please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 This application provides a protective device for prestressed concrete pipe pile heads, including a protective top plate 1, two support plates 2, and two elastic inner support rings 3. The protective top plate 1 is a flat plate structure, and two support plates 2 are symmetrically fixedly installed at the bottom of the protective top plate 1. The two support plates 2 are set perpendicular to the protective top plate 1 and are located in the same vertical plane. Each support plate 2 has a through hole 21 at its upper and lower ends, and each elastic inner support ring 3 is respectively inserted into the two through holes 21 of the same support plate 2. In this embodiment, the protective top plate 1 is a circular flat plate structure, and the diameter of the protective top plate 1 is slightly larger than the outer diameter of the concrete pipe pile 5. The elastic inner support rings 3 are made of spring steel.

[0022] Specifically, the protective top plate 1 is made of stainless steel plate, with a thickness of 1.5cm. The diameter of the protective top plate 1 is 3cm larger than that of the prestressed concrete pipe pile, so that the protective top plate 1 can completely cover the upper end of the concrete pipe pile 5. At the same time, the installation of the protective top plate 1 will not interfere with the subsequent earthwork excavation operation. Two support plates 2 are symmetrically welded and installed along the center of the protective top plate 1. The support plates 2 are made of stainless steel plate, with a length of 50cm, a width of 10cm, and a thickness of 1.5cm. The outer side of the direction is reserved with a horizontal gap from the outer side of the protective top plate 1 so that when the two support plates 2 can be inserted into the central cavity 51 of the concrete pipe pile 5, the protective top plate 1 can at least just completely cover the upper end of the concrete pipe pile 5; the elastic inner support ring 3 is made of materials with high elastic limit and fatigue resistance such as spring steel so that the elastic inner support ring 3 has good elastic deformation ability, so as to ensure that the elastic inner support ring 3 can be stably installed in the concrete pipe pile 5 and that the elastic inner support ring 3 has sufficient rebound ability after being removed.

[0023] In this embodiment, the elastic inner support ring 3 is normally a circular ring structure. Under normal conditions, the diameter of the elastic inner support ring 3 is larger than the inner diameter of the concrete pipe pile 5. When the support plate 2 is fully inserted into the central cavity 51 of the concrete pipe pile 5, the two elastic inner support rings 3 are squeezed and deformed, thus pressing against the inner wall of the concrete pipe pile 5, and the protective top plate 1 completely covers the upper end of the concrete pipe pile 5.

[0024] Thus, by installing two support plates 2 at the bottom of the protective top plate 1, and setting an elastic inner support ring 3 on the support plate 2, and the elastic inner support ring 3 adopting a circular ring structure with a diameter larger than the inner diameter of the concrete pipe pile 5 under normal conditions, when it is necessary to cover and protect the upper end of the concrete pipe pile 5, this protective device can be directly inserted into the upper end of the concrete pipe pile 5 to cover the upper opening of the concrete pipe pile 5, thereby preventing soil from falling into the central cavity 51 of the concrete pipe pile 5.

[0025] Specifically, when installing this protective device, simply insert the support plate 2 and the elastic inner support ring 3 into the central cavity 51 of the concrete pipe pile 5, and then manually press the protective top plate 1 until it contacts the upper end face of the concrete pipe pile 5. During the pressing process, the elastic inner support ring 3 undergoes elastic contraction deformation under the limiting action of the side wall of the concrete pipe pile 5, so that the two elastic inner support rings 3 are pressed tightly against the inner wall of the concrete pipe pile 5, thus completing the insertion of this protective device and achieving effective coverage and protection of the upper end of the concrete pipe pile 5 by the protective top plate 1. After the earthwork excavation is completed, manually pull the protective top plate 1 to remove the two elastic inner support rings 3 from the concrete pipe pile 5 to take out the protective device. Then the elastic inner support ring 3 will spring back to its circular shape. If the elastic inner support ring 3 does not return to its original state, the shape of the elastic inner support ring 3 can be manually pressed and adjusted for the next use.

[0026] This protective device achieves tight installation between the protective device and the concrete pipe pile 5 through the elastic contraction and deformation of the elastic inner support ring 3. This facilitates installation and prevents the support plate 2 and the elastic inner support ring 3 from easily detaching from the upper end of the concrete pipe pile 5, thus avoiding coverage failure. The installation operation is simple, time-saving, labor-saving, stable, and fast. It provides stable and reliable coverage and protection for the head of the concrete pipe pile 5. It avoids the problems of time-consuming and labor-intensive welding of steel plates and affecting the construction progress in the existing technology, as well as the problem of the wooden boards easily shifting or slipping when placing them directly.

[0027] In some embodiments, a carrying ring 4 is installed on the protective top plate 1 so that the protective top plate 1 can be manually pulled by the carrying ring 4 after the earthwork excavation operation is completed to remove the protective device.

[0028] In some embodiments, the through hole 21 is a strip-shaped hole extending along the extension direction of the support plate 2, and the width of the through hole 21 is slightly larger than the cross-sectional diameter of the elastic inner support ring 3. Thus, by making the width of the through hole 21 slightly larger than the cross-sectional diameter of the elastic inner support ring 3, the two elastic inner support rings 3 can be kept as perpendicular to the plane of the support plate 2 as possible while allowing the elastic inner support ring 3 to move, thereby ensuring that the elastic inner support ring 3 can be stably pressed against the inner wall of the concrete pipe pile 5. The through hole 21, by adopting a strip-shaped hole structure extending along the extension direction of the support plate 2, provides deformation space for the elastic contraction deformation of the elastic inner support ring 3 during the pressing and insertion process, and facilitates the operation space for subsequent manual pressing and adjustment of the shape of the elastic inner support ring 3.

[0029] Finally, it should be noted that although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention, all of which should be included within the protection scope of this application.

Claims

1. A protective device for prestressed concrete pipe pile heads, characterized in that: It includes a protective top plate (1), two support plates (2), and two elastic inner support rings (3). The protective top plate (1) is a flat plate structure. Two support plates (2) are symmetrically fixedly installed at the bottom of the protective top plate (1). The two support plates (2) are set perpendicular to the protective top plate (1) and are located in the same vertical plane. Each support plate (2) has a through hole (21) at its upper and lower ends. Each elastic inner support ring (3) is respectively inserted into the two through holes (21) of the same support plate (2). The elastic inner support ring (3) is normally a circular ring structure. The diameter of the elastic inner support ring (3) is larger than the inner diameter of the concrete pipe pile (5). When the support plate (2) is fully inserted into the central cavity (51) of the concrete pipe pile (5), the two elastic inner support rings (3) are squeezed and deformed, thus pressing against the inner wall of the concrete pipe pile (5) and the protective top plate (1) completely covers the upper end of the concrete pipe pile (5).

2. The prestressed concrete pipe pile head protection device according to claim 1, characterized in that: The protective top plate (1) is a circular flat plate structure, and the diameter of the protective top plate (1) is slightly larger than the outer diameter of the concrete pipe pile (5).

3. The prestressed concrete pipe pile head protection device according to claim 1 or 2, characterized in that: At least one carrying ring (4) is installed on the protective top plate (1).

4. The prestressed concrete pipe pile head protection device according to claim 1, characterized in that: The through hole (21) is a strip-shaped hole extending along the extension direction of the support plate (2), and the width of the through hole (21) is slightly larger than the cross-sectional diameter of the elastic inner support ring (3).

5. The prestressed concrete pipe pile head protection device according to claim 1, characterized in that: The elastic inner support ring (3) is made of spring steel.

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