Lifting device for triangular pile

Abstract

The invention 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 due to the fact that a hoisting device in the related technology cannot be suitable for the triangular pile, the triangular pile is prone to uneven stress in the hoisting process, and consequently a pile body inclines or a hoisting structure is broken is solved.

Description

Technical Field

[0001] The invention belongs to the technical field of pipe piles, and in particular relates to a hoisting device for triangular piles. Background Art

[0002] Triangular piles are foundation engineering materials with special cross-sections, and their cross-section is triangular. Due to its unique shape, the triangular cross-section makes the pile body more evenly stressed in the soil and enhances the structural stability. Its shape facilitates precise positioning and insertion into the ground, and is suitable for a variety of geological conditions. Compared with traditional round or square piles, the triangular design can reduce material usage while ensuring strength. Triangular piles require specially designed lifting devices to ensure their stability during installation, and existing equipment may perform poorly in terms of fixing and adjustment. Many lifting devices are designed for round or square piles and cannot be well adapted to triangular cross-sections, resulting in poor stability after clamping. Since the lifting devices in the relevant technology are not applicable to triangular piles, triangular piles are prone to uneven stress during the lifting process, resulting in problems such as pile tilting or fracture of the lifting structure. Summary of the invention

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

[0004] To achieve the above object, the technical solution of the present invention is achieved as follows:

[0005] A lifting device for triangular piles, comprising a first fixing plate, a second fixing plate, a lifting structure, three clamping structures, three fixing structures, three tensioning mechanisms and a plurality of connecting structures;

[0006] The lower end surface of the first fixing plate is provided with an annular mounting seat, 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 correspondingly provided with a fixing structure, and the fixing structure is used to connect the side end surface of the triangular pile;

[0007] A fixing rod is provided in the middle of the lower end surface 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 matched with the clamping structure;

[0008] The plurality of connection structures are evenly distributed between the first fixing plate and the second fixing plate, the bottom of the connection structure is connected to the first fixing plate, and the top of the connection structure is connected to the second fixing plate;

[0009] The hoisting structure is arranged on the upper end surface of the second fixing 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, the bottom of the clamping rod is provided with an elbow, the inner end face of the elbow is connected to the fixed structure, and the strip rib is arranged 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 surface of the positioning plate is used to match the step surface on the top of the triangular pile, the outer end surface of the positioning plate is provided with the strip mounting seat, and the strip mounting seat 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 of the connecting plates is integrally connected to the positioning plate, and the connecting plates are connected to the top of the triangular piles through 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 via 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, the connecting structure is connected to the first fixing plate via the circular fixing seat, and a plurality of 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 joint.

[0016] Furthermore, the connection structure includes a threaded sleeve, a screw and a locking nut, the bottom of the threaded sleeve is rotatably matched with the circular fixing seat, the top of the screw is connected to the second fixing plate, the bottom of the screw is threadably matched with the threaded sleeve, and the locking nut is arranged on the screw.

[0017] Furthermore, the lifting structure includes a fixed frame, connecting bolts and lifting rollers. The bottom of the fixed frame is connected to the second fixed plate through connecting bolts. The lifting rollers are arranged on the inner side of the fixed frame. The lifting rollers are rotatably connected to the fixed frame. The lifting rollers are used to cooperate with the lifting ropes.

[0018] Compared with the prior art, the hoisting device for triangular piles described in the present invention has the following advantages:

[0019] 1. Through the hinged connection between the top of the clamping rod and the annular mounting seat, the clamping rod is allowed to automatically adjust the clamping angle according to the actual shape and size of the triangular pile, ensuring that the three clamping points always maintain vertical contact with the edge surface of the pile body. The elbow structure at the bottom of the clamping rod cooperates with the positioning plate to convert the concentrated load into surface contact pressure, which is evenly dispersed to the step surface at the top of the triangular pile through the rigid transmission path of the strip mounting seat to avoid local crushing. The mechanical engagement between the inner end face of the positioning plate and the step surface of the triangular pile forms a physical stop, which cooperates with the bolt tightening of the connecting plates on both sides to achieve bidirectional (axial + radial) displacement constraint and prevent the pile body from slipping during lifting. The symmetrically distributed connecting plates and the top of the triangular pile form a triangular constraint pair, which suppresses the torsional trend caused by the inertial force of the lifting rotation through rigid bolt connection to ensure the stability of the pile body posture.

[0020] 2. The pre-clamping force difference of the three clamping points is automatically balanced through the elastic deformation of the tension spring, ensuring that each clamping point is evenly stressed and avoiding local 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 via a quick-release joint or a threaded sleeve, so that the first and second fixing plates can be quickly assembled and separated, significantly improving construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

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

[0024] Figure 2 This is a schematic diagram of the clamping structure according to an embodiment of the present invention;

[0025] Figure 3 This is a schematic diagram of the tensioning mechanism structure according to an embodiment of the present invention;

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

[0027] Figure 5 It is a schematic diagram of the hoisting structure described in an embodiment of the present invention.

[0028] Description of reference numerals:

[0029] 100, first fixed plate; 110, annular mounting seat; 120, fixing rod; 130, circular fixing seat; 200, clamping structure; 210, clamping rod; 220, strip ribs; 300, fixing structure; 310, strip mounting seat; 400, connecting structure; 500, second fixed 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 DESCRIPTION

[0030] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0031] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0032] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

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

[0034] A lifting device for triangular piles, such as Figure 1As shown, it includes a first fixing plate 100, a second fixing plate 500, a lifting structure 600, three clamping structures 200, three fixing structures 300, three tensioning mechanisms 700 and a plurality of connecting structures 400; an annular mounting seat 110 is arranged on the lower end surface of the first fixing plate 100, and 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 arranged at the bottom of the clamping structure 200, and the fixing structure 300 is used to connect the side end surface of the triangular pile;

[0035] A fixing rod 120 is disposed in the middle of the lower end surface of the first fixing plate 100, and 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 matched with the clamping structure 200;

[0036] The four connection structures 400 are evenly distributed between the first fixing plate 100 and the second fixing plate 500. The bottom of the connection structure 400 is connected to the first fixing plate 100, and the top of the connection structure 400 is connected to the second fixing plate 500. The connection structure 400 is a quick-release joint. A circular fixing seat 130 is provided on the upper end surface of the first fixing plate 100. The connection structure 400 is connected to the first fixing plate 100 through the circular fixing seat 130. A plurality of reinforcing ribs are provided at the position where the circular fixing seat 130 is connected to the first fixing plate 100. The first and second fixing plates 500 are detachably connected by a quick-release joint or a threaded sleeve, so that the first and second fixing plates 500 can be quickly assembled and separated, which significantly improves the construction efficiency.

[0037] The hoisting structure 600 is arranged on the upper end surface of the second fixing plate 500. The hoisting structure 600 includes a fixing frame 610, connecting bolts 630 and a hoisting roller 620. The bottom of the fixing frame 610 is connected to the second fixing plate 500 through the connecting bolts 630. The hoisting roller 620 is arranged inside the fixing frame 610. The hoisting roller 620 is rotatably connected to the fixing frame 610 and is used to cooperate with the hoisting rope.

[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. The bottom of the clamping rod 210 is provided with an elbow. The inner end face of the elbow is connected to the fixed structure 300. The strip rib 220 is arranged on the outer end face of the clamping rod 210. Through the hinge connection between the top of the clamping rod 210 and the annular mounting seat 110, the clamping rod 210 is allowed to automatically adjust the clamping angle according to the actual shape and size of the triangular pile, ensuring that the three clamping points always maintain vertical contact with the pile body face. The elbow structure at the bottom of the clamping rod 210 cooperates with the positioning plate to convert the concentrated load into surface contact pressure, which is evenly distributed to the step surface at the top of the triangular pile through the rigid transmission path of the strip mounting seat 310 to avoid local crushing. The mechanical engagement between the inner end face of the positioning plate and the step surface of the triangular pile forms a physical stop, which cooperates with the bolt tightening of the connecting plates on both sides to achieve bidirectional (axial + radial) displacement constraint to prevent the pile body from slipping during the hoisting process. The symmetrically distributed connecting plates and the top of the triangular pile form a triangular constraint pair, which suppresses the torsion tendency caused by the inertia force of the lifting rotation through rigid bolt connection to ensure the stability of the pile body.

[0039] The fixing structure 300 includes a positioning plate and a strip mounting seat 310. The inner end surface of the positioning plate is used to match the stepped surface at the top of the triangular pile. The outer end surface of the positioning plate is provided with a strip mounting seat 310, and the strip mounting seat 310 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 the connecting plate is connected to the top of the triangular pile through 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 through the fixed block 750. The two tension springs 710 are symmetrically arranged on the mounting rod 740. One end of the tension spring 710 is connected to the mounting rod 740, and the other end of the tension spring 710 is connected to the connecting block 730. The middle of the connecting block 730 is welded to the slider 720. The inner end surface of the clamping rod 210 is provided with a T-shaped groove, and the slider 720 is slidably matched with the T-shaped groove. The elastic deformation of the tension spring 710 automatically balances the difference in the pre-clamping force of the three clamping points to ensure that each clamping point is evenly stressed and avoid local overload. The sliding match between the slider 720 and the T-shaped groove of the clamping rod 210 allows the clamping rod 210 to swing freely within a certain range.

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

Claims

1. A lifting device for triangular piles, characterized in that: It comprises a first fixing plate (100), a second fixing plate (500), a lifting structure (600), three clamping structures (200), three fixing structures (300), three tensioning mechanisms (700) and a plurality of connecting structures (400); The lower end surface 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 the bottom of the clamping structure (200) is correspondingly provided with a fixing structure (300), and the fixing structure (300) is used to connect the side end surface of the triangular pile; A fixing rod (120) is arranged in the middle of the lower end surface of the first fixing plate (100), and the 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 matched with the clamping structure (200); The plurality of connection structures (400) are evenly distributed between the first fixing plate (100) and the second fixing plate (500); the bottom of the connection structure (400) is connected to the first fixing plate (100), and the top of the connection structure (400) is connected to the second fixing plate (500); The hoisting structure (600) is arranged on the upper end surface of the second fixing plate (500).

2. A lifting device for triangular piles according to claim 1, characterized in that: The clamping structure (200) comprises a clamping rod (210) and a strip rib (220); the top of the clamping rod (210) is hinged to the annular mounting seat (110); the bottom of the clamping rod (210) is provided with an elbow; the inner end face of the elbow is connected to the fixing structure (300); and the strip rib (220) is arranged on the outer end face of the clamping rod (210).

3. A lifting device for triangular piles according to claim 2, characterized in that: The fixing structure (300) comprises a positioning plate and a strip-shaped mounting seat (310), wherein the inner end surface of the positioning plate is used to match the step surface at the top of the triangular pile, and the outer end surface of the positioning plate is provided with the strip-shaped mounting seat (310), and the strip-shaped mounting seat (310) is fixedly connected to the elbow.

4. A lifting device for triangular piles according to claim 3, characterized in that: The fixing structure (300) further comprises 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 via fixing bolts.

5. The hoisting device for triangular piles according to claim 2, characterized in that: 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). One end of the tension spring (710) is connected to the mounting rod (740), and the other end of the tension spring (710) is connected to the connecting block (730). The middle part of the connecting block (730) is fixedly connected to the slider (720). The inner end face of the clamping rod (210) is provided with a T-shaped groove, and the slider (720) slides in cooperation with the T-shaped groove.

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

7. A lifting device for triangular piles according to claim 6, characterized in that: The connection structure (400) is a quick-release joint.

8. The lifting device for triangular piles according to claim 6, characterized in that: The connection structure (400) comprises a threaded sleeve, a screw and a locking nut, the bottom of the threaded sleeve is rotationally matched with the circular fixing seat (130), the top of the screw is connected to the second fixing plate (500), the bottom of the screw is threadably matched with the threaded sleeve, and the locking nut is arranged on the screw.

9. The hoisting device for triangular piles according to claim 6, characterized in that: The lifting structure (600) includes a fixed frame (610), connecting bolts (630) and a lifting roller (620). The bottom of the fixed frame (610) is connected to the second fixed plate (500) via the connecting bolts (630). The lifting roller (620) is arranged on the inner side of the fixed frame (610). The lifting roller (620) is rotatably connected to the fixed frame (610). The lifting roller (620) is used to cooperate with the lifting rope.

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