Lifting device for triangular pile

Abstract

The utility model provides a hoisting device for a triangular pile. The hoisting device comprises a first fixing plate, a second fixing plate, a hoisting structure, three clamping structures, three fixing structures, three tensioning mechanisms and a plurality of connecting structures, an annular mounting base is arranged on the lower end face of the first fixing plate, the three clamping structures are evenly distributed on the annular mounting base, the tops of the clamping structures are hinged to the annular mounting base, and a fixing structure is correspondingly arranged at the bottom of each clamping structure and used for being connected with the side end face of the triangular pile. According to the hoisting device for the triangular pile, the problem that a pile body is inclined or a hoisting structure is broken due to the fact that a hoisting device in the related technology cannot be suitable for the triangular pile and the triangular pile is prone to uneven stress in the hoisting process is solved.

Description

Technical Field

[0001] This utility model belongs to the field of pipe pile technology, and in particular relates to a hoisting device for triangular piles. Background Technology

[0002] Triangular piles are foundation engineering materials with a special cross-section, shaped like a triangle. Due to their unique shape, the triangular cross-section allows for more even stress distribution within the soil, enhancing structural stability. Their shape facilitates precise positioning and insertion into the ground, making them suitable for various geological conditions. Compared to traditional round or square piles, the triangular design reduces material usage while maintaining strength. Triangular piles require specially designed lifting equipment to ensure stability during installation, as existing equipment may perform poorly in terms of fixing and adjustment. Many lifting devices are designed for round or square piles and are not well-suited for triangular cross-sections, resulting in poor stability after clamping. Because the lifting devices in related technologies are incompatible with triangular piles, uneven stress distribution can easily occur during lifting, leading to pile tilting or breakage of the lifting structure. Summary of the Invention

[0003] In view of this, the present invention aims to at least partially solve one of the related technical problems.

[0004] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0005] A hoisting device for triangular piles includes a first fixing plate, a second fixing plate, a hoisting structure, three clamping structures, three fixing structures, three tensioning mechanisms, and multiple connecting structures.

[0006] The lower end face of the first fixing plate is provided with an annular mounting seat, and the three clamping structures are evenly distributed on the annular mounting seat. The top of the clamping structure is hinged to the annular mounting seat, and the bottom of the clamping structure is provided with a corresponding fixing structure. The fixing structure is used to connect the side end face of the triangular pile.

[0007] A fixing rod is provided in the middle of the lower end face of the first fixing plate, and the three tensioning mechanisms are evenly distributed on the fixing rod. One end of the tensioning mechanism is connected to the fixing rod, and the other end of the tensioning mechanism is slidably engaged with the clamping structure.

[0008] Multiple connecting structures are evenly distributed between the first fixing plate and the second fixing plate, with the bottom of each connecting structure connected to the first fixing plate and the top of each connecting structure connected to the second fixing plate;

[0009] The hoisting structure is installed on the upper surface of the second fixed plate.

[0010] Furthermore, the clamping structure includes a clamping rod and a strip rib. The top of the clamping rod is hinged to the annular mounting seat, and the bottom of the clamping rod is provided with a bend. The inner end face of the bend is connected to the fixing structure, and the strip rib is provided on the outer end face of the clamping rod.

[0011] Furthermore, the fixing structure includes a positioning plate and a strip mounting seat. The inner end face of the positioning plate is used to cooperate with the stepped surface of the top of the triangular pile, and the outer end face of the positioning plate is provided with the strip mounting seat, which is fixedly connected to the elbow.

[0012] Furthermore, the fixing structure also includes two connecting plates, which are symmetrically arranged on both sides of the positioning plate. Each connecting plate is integrally connected to the positioning plate, and the connecting plates are connected to the top of the triangular pile by fixing bolts.

[0013] Furthermore, the tensioning mechanism includes a fixed block, a mounting rod, a slider, a connecting block, and two tension springs. The mounting rod is connected to the fixed rod through the fixed block. The two tension springs are symmetrically arranged on the mounting rod. One end of the tension spring is connected to the mounting rod, and the other end of the tension spring is connected to the connecting block. The middle part of the connecting block is fixedly connected to the slider. The inner end face of the clamping rod is provided with a T-shaped groove, and the slider slides in cooperation with the T-shaped groove.

[0014] Furthermore, a circular fixing seat is provided on the upper surface of the first fixing plate, and the connecting structure is connected to the first fixing plate through the circular fixing seat. Multiple reinforcing ribs are provided at the position where the circular fixing seat is connected to the first fixing plate.

[0015] Furthermore, the connection structure is a quick-release connector.

[0016] Furthermore, the connection structure includes a threaded sleeve, a screw, and a locking nut. The bottom of the threaded sleeve is rotatably engaged with the circular fixed seat, the top of the screw is connected to the second fixed plate, the bottom of the screw is threadedly engaged with the threaded sleeve, and the locking nut is disposed on the screw.

[0017] Furthermore, the hoisting structure includes a fixed frame, connecting bolts, and hoisting rollers. The bottom of the fixed frame is connected to the second fixed plate by connecting bolts. The hoisting rollers are disposed inside the fixed frame and are rotatably connected to the fixed frame. The hoisting rollers are used to cooperate with the hoisting ropes.

[0018] Compared with existing technologies, the hoisting device for triangular piles described in this utility model has the following advantages:

[0019] 1. The hinged connection between the top of the clamping rod and the annular mounting base allows the clamping rod to automatically adjust its clamping angle according to the actual shape and size of the triangular pile, ensuring that the three clamping points always maintain perpendicular contact with the pile's edge. The bent structure at the bottom of the clamping rod, in conjunction with the positioning plate, converts the concentrated load into surface contact pressure, which is evenly distributed to the stepped surface at the top of the triangular pile through the rigid transmission path of the strip mounting base, preventing local crushing. The mechanical engagement between the inner end face of the positioning plate and the stepped surface of the triangular pile forms a physical stop, which, together with the bolts on the connecting plates on both sides, achieves bidirectional (axial + radial) displacement constraint, preventing the pile from slipping during hoisting. The symmetrically distributed connecting plates form a triangular constraint pair with the top of the triangular pile, and the rigid bolt connection suppresses the torsional tendency caused by the rotational inertia force during hoisting, ensuring the stability of the pile's posture.

[0020] 2. The elastic deformation of the tension spring automatically balances the pre-clamping force differences among the three clamping points, ensuring uniform force distribution at each clamping point and avoiding localized overload. The sliding fit between the slider and the T-slot of the clamping rod allows the clamping rod to swing freely within a certain range.

[0021] 3. The first and second fixing plates are detachably connected by quick-release couplings or threaded sleeves, enabling rapid assembly and separation of the first and second fixing plates, which significantly improves construction efficiency. Attached Figure Description

[0022] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0023] Figure 1 This is a schematic diagram of a hoisting device for triangular piles according to an embodiment of the present utility model;

[0024] Figure 2 This is a schematic diagram of the clamping structure described in an embodiment of the present utility model;

[0025] Figure 3 This is a schematic diagram of the tensioning mechanism structure described in an embodiment of the present utility model;

[0026] Figure 4 This is a schematic diagram of the circular fixing base structure according to an embodiment of the present utility model;

[0027] Figure 5 This is a schematic diagram of the hoisting structure described in an embodiment of the present utility model.

[0028] Explanation of reference numerals in the attached figures:

[0029] 100. First fixing plate; 110. Annular mounting seat; 120. Fixing rod; 130. Circular fixing seat; 200. Clamping structure; 210. Clamping rod; 220. Strip rib; 300. Fixing structure; 310. Strip mounting seat; 400. Connecting structure; 500. Second fixing plate; 600. Lifting structure; 610. Fixing frame; 620. Lifting roller; 630. Connecting bolt; 700. Tensioning mechanism; 710. Tension spring; 720. Slider; 730. Connecting block; 740. Mounting rod; 750. Fixing block. Detailed Implementation

[0030] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0031] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., 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.

[0032] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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.

[0033] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0034] A hoisting device for triangular piles, such as Figure 1As shown, it includes a first fixing plate 100, a second fixing plate 500, a hoisting structure 600, three clamping structures 200, three fixing structures 300, three tensioning mechanisms 700, and multiple connecting structures 400; the lower end face of the first fixing plate 100 is provided with an annular mounting seat 110, the three clamping structures 200 are evenly distributed on the annular mounting seat 110, the top of the clamping structure 200 is hinged to the annular mounting seat 110, and a fixing structure 300 is correspondingly provided at the bottom of the clamping structure 200. The fixing structure 300 is used to connect the side end face of the triangular pile;

[0035] A fixing rod 120 is provided in the middle of the lower end face of the first fixing plate 100. Three tensioning mechanisms 700 are evenly distributed on the fixing rod 120. One end of the tensioning mechanism 700 is connected to the fixing rod 120, and the other end of the tensioning mechanism 700 is slidably engaged with the clamping structure 200.

[0036] Four connecting structures 400 are evenly distributed between the first fixing plate 100 and the second fixing plate 500. The bottom of each connecting structure 400 is connected to the first fixing plate 100, and the top of each connecting structure 400 is connected to the second fixing plate 500. Each connecting structure 400 is a quick-release connector. A circular fixing seat 130 is provided on the upper surface of the first fixing plate 100. The connecting structures 400 are connected to the first fixing plate 100 via the circular fixing seat 130. Multiple reinforcing ribs are provided at the connection point between the circular fixing seat 130 and the first fixing plate 100. The first and second fixing plates 500 are detachably connected via quick-release connectors or threaded sleeves, enabling rapid assembly and separation of the first and second fixing plates 500, significantly improving construction efficiency.

[0037] The hoisting structure 600 is disposed on the upper end face of the second fixed plate 500. The hoisting structure 600 includes a fixed frame 610, connecting bolts 630, and hoisting rollers 620. The bottom of the fixed frame 610 is connected to the second fixed plate 500 by the connecting bolts 630. The hoisting rollers 620 are disposed inside the fixed frame 610 and are rotatably connected to the fixed frame 610. The hoisting rollers 620 are used to cooperate with the hoisting ropes.

[0038] The clamping structure 200 includes a clamping rod 210 and a strip rib 220. The top of the clamping rod 210 is hinged to the annular mounting seat 110, and the bottom of the clamping rod 210 has an elbow. The inner end face of the elbow is connected to the fixing structure 300, and the strip rib 220 is located on the outer end face of the clamping rod 210. The hinge between the top of the clamping rod 210 and the annular mounting seat 110 allows the clamping rod 210 to automatically adjust its clamping angle according to the actual shape and size of the triangular pile, ensuring that the three clamping points always maintain perpendicular contact with the pile's edge. The elbow structure at the bottom of the clamping rod 210 cooperates with the positioning plate to convert concentrated loads into surface contact pressure, which is evenly distributed to the stepped surface at the top of the triangular pile through the rigid transmission path of the strip mounting seat 310, preventing local crushing. The mechanical engagement between the inner end face of the positioning plate and the stepped surface of the triangular pile forms a physical stop, which, combined with the bolts of the connecting plates on both sides, achieves bidirectional (axial + radial) displacement constraint, preventing the pile from slipping during hoisting. The symmetrically distributed connecting plates form a triangular constraint pair with the top of the triangular pile. The rigid bolt connection suppresses the torsional tendency caused by the rotational inertia force during hoisting, ensuring the stability of the pile's posture.

[0039] The fixing structure 300 includes a positioning plate and a strip mounting base 310. The inner end face of the positioning plate is used to mate with the stepped surface of the top of the triangular pile, and the outer end face of the positioning plate is provided with the strip mounting base 310, which is welded to the elbow. The fixing structure 300 also includes two connecting plates, which are symmetrically arranged on both sides of the positioning plate. Each connecting plate is integrally connected to the positioning plate and is connected to the top of the triangular pile by fixing bolts.

[0040] The tensioning mechanism 700 includes a fixed block 750, a mounting rod 740, a slider 720, a connecting block 730, and two tension springs 710. The mounting rod 740 is connected to the fixed rod 120 via the fixed block 750. The two tension springs 710 are symmetrically arranged on the mounting rod 740, with one end of each spring connected to the mounting rod 740 and the other end connected to the connecting block 730. The middle of the connecting block 730 is welded to the slider 720. The inner end face of the clamping rod 210 has a T-slot, and the slider 720 slides into the T-slot. The elastic deformation of the tension springs 710 automatically balances the difference in pre-clamping force at the three clamping points, ensuring uniform force at each clamping point and avoiding local overload. The sliding fit between the slider 720 and the T-slot of the clamping rod 210 allows the clamping rod 210 to swing freely within a certain range.

[0041] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A lifting device for a sheet pile, characterized in that: It includes a first fixing plate (100), a second fixing plate (500), a hoisting structure (600), three clamping structures (200), three fixing structures (300), three tensioning mechanisms (700), and multiple connecting structures (400); The lower end face of the first fixing plate (100) is provided with an annular mounting seat (110), and three clamping structures (200) are evenly distributed on the annular mounting seat (110). The top of the clamping structure (200) is hinged to the annular mounting seat (110), and a fixing structure (300) is correspondingly provided at the bottom of the clamping structure (200). The fixing structure (300) is used to connect the side end face of the triangular pile. A fixing rod (120) is provided in the middle of the lower end face of the first fixing plate (100). Three tensioning mechanisms (700) are evenly distributed on the fixing rod (120). One end of the tensioning mechanism (700) is connected to the fixing rod (120), and the other end of the tensioning mechanism (700) is slidably engaged with the clamping structure (200). Multiple connecting structures (400) are evenly distributed between the first fixing plate (100) and the second fixing plate (500). The bottom of the connecting structure (400) is connected to the first fixing plate (100), and the top of the connecting structure (400) is connected to the second fixing plate (500). The hoisting structure (600) is located on the upper surface of the second fixing plate (500).

2. A lifting device for a sheet pile according to claim 1, characterized in that: The clamping structure (200) includes a clamping rod (210) and a strip rib (220). The top of the clamping rod (210) is hinged to the annular mounting base (110). The bottom of the clamping rod (210) is provided with a bend. The inner end face of the bend is connected to the fixing structure (300). The strip rib (220) is provided on the outer end face of the clamping rod (210).

3. A lifting device for a sheet pile according to claim 2, characterised in that: The fixed structure (300) includes a positioning plate and a strip mounting seat (310). The inner end face of the positioning plate is used to cooperate with the stepped surface of the top of the triangular pile. The outer end face of the positioning plate is provided with the strip mounting seat (310). The strip mounting seat (310) is fixedly connected to the elbow.

4. A lifting device for a sheet pile according to claim 3, characterised in that: The fixing structure (300) also includes two connecting plates, which are symmetrically arranged on both sides of the positioning plate. Each connecting plate is integrally connected to the positioning plate, and the connecting plate is connected to the top of the triangular pile by fixing bolts.

5. A lifting device for a sheet pile according to claim 2, characterized in that: The tensioning mechanism (700) comprises a fixing block (750), a mounting rod (740), a sliding block (720), a connecting block (730) and two tension springs (710), the mounting rod (740) is connected with the fixing rod (120) through the fixing block (750), the two tension springs (710) are symmetrically arranged on the mounting rod (740), one end of the tension spring (710) is connected with the mounting rod (740), the other end of the tension spring (710) is connected with the connecting block (730), the middle part of the connecting block (730) is fixedly connected with the sliding block (720), the inner side end surface of the clamping rod (210) is provided with a T-shaped groove, and the sliding block (720) is in sliding fit with the T-shaped groove.

6. A lifting device for a sheet pile according to any one of claims 1-5, characterized in that: A circular fixing seat (130) is arranged on the upper end surface of the first fixing plate (100), the connecting structure (400) is connected with the first fixing plate (100) through the circular fixing seat (130), and a plurality of reinforcing ribs are arranged at the position where the circular fixing seat (130) is connected with the first fixing plate (100).

7. A lifting device for a sheet pile according to claim 6, characterised in that: The connecting structure (400) is a quick release connector.

8. A lifting device for a sheet pile according to claim 6, characterised in that: The connecting structure (400) comprises a threaded sleeve, a screw rod and a locking nut, the bottom of the threaded sleeve is in rotary fit with the circular fixing seat (130), the top of the screw rod is connected with the second fixing plate (500), the bottom of the screw rod is in threaded fit with the threaded sleeve, and the locking nut is arranged on the screw rod.

9. A lifting device for a sheet pile according to claim 6, characterized in that: The hoisting structure (600) comprises a fixing frame (610), a connecting bolt (630) and a hoisting roller (620), the bottom of the fixing frame (610) is connected with the second fixing plate (500) through the connecting bolt (630), the hoisting roller (620) is arranged on the inner side of the fixing frame (610), the hoisting roller (620) is rotatably connected with the fixing frame (610), and the hoisting roller (620) is used for cooperating with a hoisting rope.

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