Plastic steel sheet pile vertical connecting device and connecting structure

Abstract

The utility model relates to a plastic steel sheet pile vertical connecting device and a connecting structure, the device comprises a connecting main body, the shape of the connecting main body is the same as that of a plastic steel sheet pile, and a plurality of limiting grooves protruding out of the surface of the connecting main body are formed in the inner side or the outer side of the connecting main body at intervals. According to the vertical connecting device, the two adjacent plastic steel sheet piles are connected through the limiting grooves matched with the positioning columns on the plastic steel sheet piles, the structure is simple, operation is convenient, the long vertical sheet pile can be divided into a plurality of short vertical sheet piles, production and transportation are convenient, and the production efficiency is improved. Meanwhile, the connecting body of the vertical connecting device is attached to the two adjacent plastic steel sheet piles, the strength of the connecting position of the plastic steel sheet piles is improved, the blank of the plastic steel sheet pile longitudinal special connecting technology is filled up through the structure, and a reliable foundation is provided for efficient and high-precision construction in a complex engineering scene.

Description

Technical Field

[0001] This utility model belongs to the technical field of revetment connection structure in water conservancy projects, and particularly relates to a vertical connection device and connection structure for plastic steel sheet piles. Background Technology

[0002] In the horizontal connection of PVC sheet piles, structures such as CT joints are often used to achieve horizontal splicing between sheet piles. However, in the field of longitudinal (vertical) connection, there is still a significant gap in existing technology. In order to meet construction requirements, the longitudinal length of existing PVC sheet piles is customized according to the construction scenario during the production stage, thus eliminating the longitudinal connection step. However, PVC sheet piles with longer longitudinal lengths have lower production efficiency and are inconvenient to transport, which affects the construction and installation progress.

[0003] Furthermore, while existing transverse connection structures (such as CT joints) can achieve horizontal locking, their design logic cannot be directly applied to longitudinal connection scenarios. For example, transverse connections largely rely on the planar interlocking of the sheet pile sides, while longitudinal connections need to withstand the combined effects of gravity, earth pressure, and construction vibrations, requiring higher multi-directional constraints and torsional resistance. Utility Model Content

[0004] To solve the above-mentioned technical problems, the first objective of this utility model is to provide a vertical connection device for plastic steel sheet piles, which ensures the stable vertical connection of plastic steel sheet piles and facilitates the production, transportation and assembly of plastic steel sheet piles; the second objective of this utility model is to provide a vertical connection structure for plastic steel sheet piles.

[0005] To achieve the first objective of the above-mentioned utility model, the present utility model adopts the following technical solution:

[0006] A vertical connection device for plastic steel sheet piles includes a connection body, the shape of which is the same as that of the plastic steel sheet pile, and a plurality of limiting grooves protruding from the surface of the connection body are provided at intervals on the inner or outer side of the connection body.

[0007] As a preferred embodiment, the two ends of the connecting body are respectively provided with an extension plate A extending to the T-shaped connector in the shape of a plastic steel plate and an extension plate B covering the C-shaped connector in the shape of a plastic steel plate.

[0008] As a preferred embodiment, a support protrusion is provided on the outer or inner side of the middle part of the connecting body, and the two ends of the support protrusion form a T-shaped connector and a C-shaped connector.

[0009] As a preferred embodiment, the side of the supporting protrusion away from the connecting body is also provided with multiple positioning protrusions at intervals, and the positioning protrusions and the limiting grooves are staggered.

[0010] As a preferred embodiment, the two ends of the supporting protrusion are respectively provided with an inner limiting plate A and an inner limiting plate B, the inner limiting plate A extending to the T-shaped connector in the shape of a plastic steel plate, and the inner limiting plate B covering the C-shaped connector in the shape of a plastic steel plate.

[0011] As a preferred embodiment, the two connecting bodies are arranged side by side and connected by a supporting protrusion. A groove for accommodating the plastic steel sheet pile is formed between the two connecting bodies, and the limiting grooves on the two connecting bodies are staggered.

[0012] To achieve the second objective of the above-mentioned utility model, the present utility model adopts the following technical solution:

[0013] A vertical connection structure for plastic steel sheet piles includes a vertical connection device for plastic steel sheet piles as described in any of the above claims and plastic steel sheet piles, wherein two adjacent plastic steel sheet piles are connected by the vertical connection device for plastic steel sheet piles.

[0014] As a preferred embodiment, the plastic steel sheet pile includes a sheet pile body, with T-shaped connectors and C-shaped connectors formed at both ends of the sheet pile body. The inner and outer sides of the sheet pile body are respectively provided with inner positioning posts and outer positioning posts, which are staggered and are inserted into corresponding limiting grooves on the connecting body.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] This utility model's vertical connection device utilizes a limiting groove that mates with the positioning column on the plastic steel sheet pile to connect two adjacent plastic steel sheet piles. It features a simple structure and convenient operation, enabling the division of a long vertical sheet pile into multiple shorter ones, facilitating production and transportation. Simultaneously, the connecting body of the vertical connection device fits snugly against two adjacent plastic steel sheet piles, increasing the strength of the connection. This utility model fills the gap in dedicated longitudinal connection technology for plastic steel sheet piles, providing a reliable foundation for efficient and high-precision construction in complex engineering scenarios. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute a limitation thereof.

[0018] Figure 1 and Figure 2 This is a schematic diagram of the connection structure between a vertical connecting device and a plastic steel sheet pile at two different angles according to this utility model;

[0019] Figure 3 and Figure 4 This is a schematic diagram of the connection structure between a vertical connecting device and a plastic steel sheet pile at two different angles according to this utility model;

[0020] Figures 5 to 9 This is a schematic diagram of five different vertical connection devices of this utility model.

[0021] The attached figures are labeled as follows: 1. Connecting body; 11. Extension plate A; 12. Extension plate B; 2. Inner limiting plate A; 3. Inner limiting plate B; 4. Supporting protrusion; 41. Positioning protrusion; 5. Limiting groove; 61. Sheet pile body; 62. Inner positioning column; 63. Outer positioning column; 64. T-shaped connector; 65. C-shaped connector. Detailed Implementation

[0022] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0023] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0024] Furthermore, in the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. 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.

[0025] 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 one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more, unless otherwise expressly defined.

[0026] In this utility model, unless otherwise explicitly 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 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 according to the specific circumstances.

[0027] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0028] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0029] like Figures 1 to 4 As shown, a vertical connection structure for plastic steel sheet piles includes a vertical connection device for plastic steel sheet piles and plastic steel sheet piles. Two adjacent plastic steel sheet piles are connected by the vertical connection device. The plastic steel sheet pile includes a sheet pile body 61, with T-shaped connectors 64 and C-shaped connectors 65 formed at both ends. The inner and outer sides of the sheet pile body 61 are respectively provided with inner positioning posts 62 and outer positioning posts 63, which are staggered. The vertical connection device for plastic steel sheet piles includes a connecting body 1, which has the same shape as the sheet pile body 61. The connecting body 1 has multiple limiting grooves 5 protruding from the surface of the connecting body 1 at intervals on its inner or outer sides. The connecting body 1 is closely attached to the inner and / or outer sides of the splice of two sheet pile bodies 61, and the inner positioning posts 62 and / or outer positioning posts 63 on the two sheet pile bodies 61 are inserted into the corresponding limiting grooves 5 on the connecting body 1.

[0030] In the aforementioned structure, the inner and outer positioning columns are arranged alternately, which disperses the stress concentration between the sheet piles and avoids deformation or fracture caused by unilateral stress. At the same time, the connecting device can be installed close to the inner or outer side of the sheet pile to adapt to the needs of different construction scenarios.

[0031] The specific structure of the vertical connection device for plastic steel sheet piles includes, but is not limited to, the following:

[0032] The first structure of the vertical connection device for plastic steel sheet piles is as follows: Figure 5 As shown, it includes a connecting body 1, the shape of which is the same as that of the plastic steel sheet pile. The connecting body 1 is closely attached to the outside of the sheet pile body 61. The outside of the connecting body 1 is provided with a plurality of limiting grooves 5 protruding from the surface of the connecting body 1 at intervals. The outer positioning post 63 of the sheet pile body 61 is inserted into the limiting groove 5.

[0033] The inner side of the middle part of the connecting body 1 is also provided with a support protrusion 4. The two ends of the support protrusion 4 form a T-shaped connector 64 and a C-shaped connector 65. The support protrusion 4 is integrally formed with the connecting body 1. On the side of the support protrusion 4 away from the connecting body 1, a plurality of positioning protrusions 41 are also provided at intervals, and the positioning protrusions 41 and the limiting grooves 5 are staggered. One end of the sheet pile body 61 abuts against the support protrusion 4, and the end of the inner positioning column 62 of the sheet pile body 61 abuts against the positioning protrusion 41.

[0034] The connecting body 1 has an extension plate A11 extending to the T-shaped connector 64 in the shape of a plastic steel plate and an extension plate B12 covering the C-shaped connector 65 in the shape of a plastic steel plate at both ends. The supporting protrusion 4 also has an inner limiting plate A2 and an inner limiting plate B3 at both ends. The inner limiting plate A2 extends to the T-shaped connector 64 in the shape of a plastic steel plate and the inner limiting plate B3 covers the C-shaped connector 65 in the shape of a plastic steel plate.

[0035] The extension plate B12 and the inner limiting plate B3 cover both the inner and outer sides of the C-shaped connector 65. The extension plate A11 and the inner limiting plate A2 cover part of the T-shaped connector and expose most of the T-shaped connector, which facilitates the insertion of the C-shaped connector of the adjacent plastic steel sheet pile. After the connection is completed, the vertical connection devices of the two adjacent plastic steel sheet piles can also fit together in the lateral direction, reducing gaps and increasing connection strength.

[0036] The aforementioned vertical connection device for plastic steel sheet piles achieves bidirectional force reinforcement: the outer limiting groove and the supporting protrusion form bidirectional support, effectively resisting lateral shear force; the positioning protrusion abuts against the inner positioning column, further constraining the longitudinal displacement of the sheet pile; the supporting protrusion directly abuts against the main body of the sheet pile, increasing the cross-sectional height of the connection area and significantly improving the overall bending resistance.

[0037] Meanwhile, the extension plates (A11, B12) and inner limiting plates (A2, B3) cover the T-shaped and C-shaped connectors to prevent external impurities from entering the joint gaps and reduce the risk of corrosion; at the same time, they cover part of the joints but retain the plug-in function, taking into account both aesthetics and practicality.

[0038] The second structure of the vertical connection device for plastic steel sheet piles is as follows: Figure 6As shown, the overall structure is similar to the first type, except that the connecting body 1 is close to the inner side of the sheet pile body 61, the corresponding limiting groove 5 is set on the inner side of the connecting body 1, and the inner positioning column 62 of the sheet pile body 61 is inserted into the limiting groove 5.

[0039] The aforementioned vertical connection device for plastic steel sheet piles enables concealed reinforcement: the inner connection design avoids the impact of exposed structures on construction space or appearance, making it suitable for scenarios with high requirements for surface flatness (such as wall support). Simultaneously, when the sheet pile is subjected to internal pressure (such as lateral pressure from the soil in the foundation pit), the inner connection device directly bears the pressure, transferring the load through the limiting groove and positioning column, thus preventing inward deformation of the sheet pile.

[0040] The third structure of the vertical connection device for plastic steel sheet piles is as follows: Figure 7 As shown, the overall structure is similar to the first type. The difference is that the supporting protrusion 4 is no longer set on the inner side of the connecting body 1. At the same time, the structure of the positioning protrusion, inner limiting plate A2 and inner limiting plate B3 is also eliminated. The vertical connection of adjacent plastic steel sheet piles is achieved only by the connecting body and the limiting groove.

[0041] The aforementioned vertical connection device for plastic-steel sheet piles meets the requirements of lightweight and low cost. Its simplified overall structure reduces material usage and manufacturing costs; its lighter weight facilitates transportation and manual operation. Furthermore, it eliminates the need for complex alignment steps; connection is completed simply by inserting the outer positioning post into the limiting groove, making it suitable for temporary projects with lower strength requirements.

[0042] The fourth structure of the vertical connection device for plastic steel sheet piles is as follows: Figure 8 As shown, the overall structure is similar to the second type. The difference is that the supporting protrusion 4 is no longer set on the outside of the connecting body 1. At the same time, the structure of the positioning protrusion, extension plate A11 and extension plate B12 is also eliminated. The vertical connection of adjacent plastic steel sheet piles is achieved only by the connecting body and the limiting groove.

[0043] The aforementioned vertical connection device for plastic-steel sheet piles achieves a balance between economy and applicability: it retains the core function of the inner limiting groove, making it suitable for scenarios requiring simple reinforcement but with limited budgets. Simultaneously, the inner installation does not occupy external space, making it suitable for narrow construction environments.

[0044] The fifth structure of the vertical connection device for plastic steel sheet piles is as follows: Figure 9 As shown, it includes two connecting bodies 1 arranged side by side, connected by a support protrusion 4. A groove for accommodating plastic steel sheet piles is formed between the two connecting bodies 1. Limiting grooves 5 are respectively provided on the two connecting bodies 1 in the direction away from the support protrusion 4, and the inner and outer limiting grooves are staggered. The inner positioning post 62 and the outer positioning post 63 of the sheet pile body 61 are inserted into the corresponding limiting grooves 5. One end of the sheet pile body 61 abuts against the support protrusion.

[0045] The aforementioned vertical connection device for plastic-steel sheet piles meets the requirements for all-round reinforcement: the double connection body forms an inner and outer clamp on the sheet pile, and the staggered arrangement of the limiting grooves can simultaneously fix the inner and outer positioning columns, achieving multi-directional constraint and excellent shear and torsional resistance. At the same time, the supporting convex strip and the double connection body form a rigid frame structure, which is suitable for high-load scenarios (such as deep foundation pit support or underwater engineering).

[0046] In summary, this utility model achieves multi-directional dispersion and rigid locking of longitudinal forces by staggering inner and outer positioning columns on the inner and outer sides of the sheet pile body and forming a three-dimensional insertion network with the limiting groove on the connecting body. This solution fills the gap in the dedicated longitudinal connection technology for plastic steel sheet piles and provides a reliable foundation for efficient and high-precision construction in complex engineering scenarios.

[0047] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. 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.

[0048] 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 without departing from the principles and spirit of the present invention. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention shall still fall within the scope of the technical solution of the present invention.

Claims

1. A vertical connection device for plastic steel sheet piles, characterized in that: It includes a connecting body (1), the shape of which is the same as that of the plastic steel sheet pile, and multiple limiting grooves (5) protruding from the surface of the connecting body (1) are provided on the inner or outer side of the connecting body (1) at intervals.

2. The vertical connection device for plastic steel sheet piles according to claim 1, characterized in that, The two ends of the connecting body (1) are respectively provided with an extension plate A (11) extending to the T-shaped connector (64) in the shape of plastic steel plate and an extension plate B (12) covering the C-shaped connector (65) in the shape of plastic steel plate.

3. The vertical connection device for plastic steel sheet piles according to claim 1, characterized in that, The outer or inner side of the middle part of the connecting body (1) is also provided with a support protrusion (4), and the two ends of the support protrusion (4) form a T-shaped connector (64) and a C-shaped connector (65).

4. The vertical connection device for plastic steel sheet piles according to claim 3, characterized in that, The supporting protrusion (4) is provided with multiple positioning protrusions (41) at intervals on the side away from the connecting body (1), and the positioning protrusions (41) and the limiting groove (5) are staggered.

5. A vertical connection device for plastic steel sheet piles according to claim 3 or 4, characterized in that, The two ends of the supporting protrusion (4) are respectively provided with inner limiting plate A (2) and inner limiting plate B (3). The inner limiting plate A (2) extends to the plastic steel plate-shaped T-shaped connector (64), and the inner limiting plate B (3) covers the plastic steel plate-shaped C-shaped connector (65).

6. The vertical connection device for plastic steel sheet piles according to claim 1, characterized in that, Two connecting bodies (1) are arranged side by side and connected by a support convex strip (4). A groove for accommodating plastic steel sheet piles is formed between the two connecting bodies (1), and the limiting grooves (5) on the two connecting bodies (1) are arranged interlaced.

7. A vertical connection structure for plastic-steel sheet piles, characterized in that, It includes the vertical connection device for plastic steel sheet piles as described in any one of claims 1 to 6, and the plastic steel sheet piles, wherein two adjacent plastic steel sheet piles are connected by the vertical connection device for plastic steel sheet piles.

8. A vertical connection structure for plastic-steel sheet piles according to claim 7, characterized in that, The plastic steel sheet pile includes a sheet pile body (61), with T-shaped connectors (64) and C-shaped connectors (65) formed at both ends of the sheet pile body (61). The inner and outer sides of the sheet pile body (61) are respectively provided with inner positioning posts (62) and outer positioning posts (63). The inner positioning posts (62) and outer positioning posts (63) are staggered, and the inner positioning posts (62) and / or outer positioning posts (63) are inserted into the corresponding limiting grooves (5) on the connecting body (1).

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