A fixing device for hoisting a PHC pipe pile sectioned pile head

Abstract

The utility model provides a kind of fixed device of PHC pipe pile cutting pile head hoisting, belongs to pile head hoisting technical field, including: arc plate, lifting lug, lifting hole, connecting plate, through-hole, first bolt and first nut, arc plate is provided with two, each arc plate is set as arc, and two arc plates are symmetrically arranged upside down;Lifting lug is fixedly installed in the middle part of the outer side wall of arc plate along front-back direction;Lifting hole is provided with multiple, and multiple lifting holes are opened on lifting lug along front-back direction through.This utility model can effectively avoid the security risk when cutting pile, reduce segmented cutting workload to ensure construction progress, its structure design simplifies assembly and disassembly process, can be reused to reduce cost, with good flexibility, versatility and stability simultaneously, can be adapted to different working conditions, ensure construction safety and efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of pile head hoisting technology, specifically relating to a fixing device for hoisting the head of a PHC pipe pile. Background Technology

[0002] PHC pipe piles are widely used in various engineering foundations. During construction, it's common for the pile top to exceed the design elevation, necessitating the cutting of the excess pile head. For pile heads that haven't reached the design elevation, the current conventional method is as follows: First, a circumferential cut is made at the predetermined cutting position, without completely severing the pile body, leaving a certain depth for a safety connection to prevent collapse during cutting. After the operator completes the cutting and moves to a safe location, the cut is then struck with a sledgehammer or electric hammer to cause the pile head to collapse and separate. This method can ensure a certain level of construction safety in scenarios with relatively short pile heads.

[0003] However, some PHC pipe piles on the market are much larger than those for general engineering projects. During pile driving, the uneven size of boulders in the foundation often results in significant deviations between the driving depth and the design elevation. Furthermore, wharf pile foundations are mostly inclined piles, meaning the piles are not vertical. When using existing conventional cutting methods, the reserved safety connection allowance is prone to brittle fracture under the lateral force of the inclined pile head, posing a significant construction safety hazard. For longer pile heads, segmented cutting is usually necessary to prevent accidents, but this increases workload and severely restricts construction progress. Utility Model Content

[0004] To address the issue that existing technologies using conventional cutting methods are prone to brittle fracture of the reserved safety connection space under the lateral force of the inclined pile head, posing a significant construction safety hazard, and that for longer pile heads, segmented cutting is typically required to prevent accidents, this increases workload and severely restricts construction progress, this invention provides a fixing device for hoisting PHC pipe pile heads. Two sets of upper and lower arc-shaped plates and four sets of connecting plates form a clamp at the pile head, which, in conjunction with existing hoisting equipment, provides an upward lifting force to the pile head, preventing uncontrolled collapse of the pile head during the cutting operation. Simultaneously, the clamp effectively supports the pile head, offsetting its own weight and lateral forces, ensuring stability during the complete cutting process. This eliminates the need for segmented cutting as in traditional methods to prevent collapse, thus avoiding the cumbersome steps of multiple segmented cuttings required for excessively long pile heads, reducing the number of segmented cuts, improving construction efficiency, and ensuring construction progress. The specific technical solution is as follows:

[0005] A fixing device for hoisting and transporting PHC pipe pile heads includes: an arc-shaped plate, lifting lugs, lifting holes, connecting plates, through holes, a first bolt, and a first nut. Two arc-shaped plates are provided, each arc-shaped, and the two arc-shaped plates are symmetrically arranged vertically. The lifting lugs are fixedly installed in the middle of the outer side wall of the arc-shaped plate along the front-back direction. Multiple lifting holes are provided, and multiple lifting holes are opened through the lifting lugs along the front-back direction. Four connecting plates are provided, and every two connecting plates are symmetrically installed at the left and right ends of the arc-shaped plate, with the connecting plates at the top and bottom corresponding to each other. The through hole is opened through the connecting plate. The first bolt is threaded vertically through the inner cavity of the through hole. The first nut is threaded onto the first bolt, and the first nut tightly abuts against the upper surface of the top connecting plate.

[0006] In the above technical solution, a first connecting wing plate is fixedly installed at the connection between the lifting lug and the arc-shaped plate.

[0007] In the above technical solution, a second connecting wing plate is fixedly installed at the connection between the connecting plate and the arc-shaped plate.

[0008] In the above technical solution, a wrapping assembly is provided on the outer side of the two corresponding connecting plates. The wrapping assembly includes: a first housing and a second housing. The first housing is fitted onto the front corner of the two corresponding connecting plates; the second housing is fitted onto the rear corner of the two corresponding connecting plates.

[0009] In the above technical solution, the packaging assembly further includes: a second housing, a connecting seat, an elongated hole, a second bolt, and a second nut. Two connecting seats are provided, and the two connecting seats are respectively fixedly installed on the upper and lower sides of the first housing. The elongated hole is opened on the connecting seat. Two second bolts are provided, and the two second bolts are respectively fixedly installed on the upper and lower sides of the second housing, and the second bolts penetrate the inner cavity of the elongated hole. The second nut is threaded onto the second bolt, and the second nut abuts tightly against the outer wall of the connecting seat.

[0010] In the above technical solution, locking components are provided at the first and second housing sets. The locking components include: a vertical plate, an extension arm, a third bolt, and an abutment piece. The vertical plate is fixed and vertically installed on the top connecting plate. Two extension arms are provided, and the two extension arms are symmetrically installed on the outer wall of the vertical plate. The third bolt is threaded through the outer wall of the extension arm. The abutment piece is fixedly installed at the end of the third bolt near the vertical plate, and the abutment piece abuts tightly against the side wall of the first or second housing set.

[0011] In the above technical solution, a third connecting wing plate is fixedly installed at the connection between the upright plate and the connecting plate.

[0012] In the above technical solution, the front end of the lifting lug extends forward to the front sidewall of the arc-shaped plate.

[0013] In the above technical solution, the arc-shaped plate is set as an arc-shaped steel plate.

[0014] In the above technical solution, a rubber pad layer is provided on the inner sidewall of the arc-shaped plate along the circumferential direction.

[0015] The present invention provides a fixing device for hoisting and transporting PHC pipe pile heads, which has the following advantages compared with the prior art:

[0016] I. In existing conventional cutting methods, the safety connection allowance reserved at the pile head is prone to brittle fracture under the lateral force of the inclined pile head, posing a significant construction safety hazard. Furthermore, for longer pile heads, segmented cutting is required to prevent accidents, increasing workload and severely hindering construction progress. This utility model addresses these issues by using two sets of upper and lower arc-shaped plates and four sets of connecting plates to form a clamping device at the pile head. This, combined with existing hoisting equipment, provides upward lifting force to the pile head, preventing uncontrolled collapse of the pile head during the cutting operation. Simultaneously, the clamping device effectively supports the pile head, offsetting its own weight and lateral forces, ensuring stability throughout the entire cutting process. Unlike traditional methods, segmented cutting to prevent collapse is unnecessary, thus avoiding the cumbersome steps of multiple separate cuts for excessively long pile heads, reducing the number of segments required, improving construction efficiency, and ensuring construction progress.

[0017] Second, in this utility model, the upper and lower sets of arc-shaped plates adopt an arc-shaped steel plate design. This design can better fit the outer contour of the fixed part, thereby increasing the contact area and fit. At the same time, with the through holes, first bolts, first nuts and other components set at the four sets of connecting plates, a structurally stable closed clamp can be formed through the synergistic action of each component. The above structural design simplifies the operation steps during assembly, and can complete the installation or disassembly without complicated tools, which greatly improves the assembly efficiency. Moreover, this setting ensures that the device can maintain good structural stability and performance after multiple assembly and disassembly, effectively realizing reuse and reducing the cost of use.

[0018] 3. After the upper and lower sets of arc plates are assembled together, the connecting plates at both ends have a reinforcement function. Specifically, the first set of housings and the second set of housings form a wrap-around reinforcement structure at the ends of the corresponding upper and lower sets of connecting plates. This structure can assist the first bolt in further reinforcing and locking the upper and lower connecting plates in the front-back direction. It can disperse the point stress generated when the upper and lower sets of connecting plates are connected by the first bolt alone, and further ensure the stability of the upper and lower sets of arc plates in the front-back direction after assembly, thereby ensuring the overall stability of the clamp formed by the two sets of arc plates during the subsequent pile head hoisting process.

[0019] Fourth, in this utility model, the distance between the corresponding first and second housing sets is adjustable, thereby allowing for adaptive adjustment of the final wrapping position of the first and second housing sets according to different widths of the connecting plates; furthermore, after adjustment, the positions of the first and second housing sets can be locked through components such as the connecting seat and the elongated hole, significantly improving the flexibility of the device, enabling it to adapt to application scenarios of various specifications of connecting plates, enhancing the versatility of the equipment, and effectively expanding its application scope;

[0020] 5. After the first and second housing sets complete the front-to-back wrapping reinforcement of the upper and lower connecting plates, the coordinated cooperation of components such as the upright plate, extension arm, third bolt, and abutment piece can achieve the locking function of the first and second housing sets in the direction of the connecting plate side wall. This locking mechanism can effectively prevent the first and second housing sets from falling off from the end of the connecting plate, and further ensure that the first and second housing sets form an all-round positioning in the front-to-back and side directions at the end of the connecting plate, thereby strengthening the stability of the overall reinforcement structure.

[0021] Fifth, this utility model is equipped with multiple sets of lifting holes at the lifting lug, so that the lifting point can be selected as needed according to the weight of the pile head and the center of gravity of the hoisting, which significantly improves the flexibility of the hoisting operation, can better adapt to the hoisting needs under different working conditions, and ensures the stability and safety of the hoisting process.

[0022] In summary, this utility model uses two sets of upper and lower arc-shaped plates and four sets of connecting plates to form a clamping device. Combined with hoisting equipment, it provides upward lifting force to the pile head, preventing uncontrolled collapse of the pile head during pile cutting. Furthermore, the clamping device's effective support for the pile head avoids the cumbersome step of segmented cutting for excessively long pile heads, reducing the number of cuts, improving construction efficiency, and ensuring construction progress. The upper and lower arc-shaped plates are designed with arc-shaped steel plates and, together with related components, form a stable and closed clamping device, simplifying assembly and disassembly steps, eliminating the need for complex tools, improving efficiency, and allowing for reuse, thus reducing costs. After the upper and lower arc-shaped plates are connected, the first set of housings and the second set of housings... The body forms a wrap-around reinforced structure, which can distribute point stress, ensure stability in the front and rear directions after assembly, and ensure the overall stability of the clamp. The distance between the corresponding first and second set of shells is adjustable, and after adjustment, it is locked by components, which improves the flexibility of the device, enhances its versatility, and expands its application range. After the first and second set of shells are reinforced, the side wall direction is locked by relevant components to prevent them from falling off the end of the connecting plate, ensuring all-round positioning and strengthening the overall structural stability. The setting of multiple sets of lifting holes at the lifting lugs allows the lifting point to be selected as needed, improving lifting flexibility, adapting to different working conditions, and ensuring lifting stability and safety. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the arc-shaped plate of this utility model;

[0024] Figure 2 This is a schematic diagram of the through hole structure of this utility model;

[0025] Figure 3 This is a front view of the first connecting wing plate of this utility model;

[0026] Figure 4 This is a top view of the connecting plate of this utility model;

[0027] Figure 5 This is a right view of the lifting lug of this utility model;

[0028] Figure 6 This is a schematic diagram of the structure of the first housing of this utility model;

[0029] Figure 7 This is a schematic diagram of the structure of the connector of this utility model;

[0030] Figures 1 to 7 In the middle, 1. Arc plate, 2. Lifting lug, 3. Lifting hole, 4. Connecting plate, 5. Through hole, 6. First bolt, 7. First nut, 8. First connecting wing plate, 9. Second connecting wing plate, 10. First housing, 11. Second housing, 12. Connecting seat, 13. Long hole, 14. Second bolt, 15. Second nut, 16. Vertical plate, 17. Third connecting wing plate, 18. Extension arm, 19. Third bolt, 20. Abutment piece. Detailed Implementation

[0031] The following are specific implementation cases and appendices. Figures 1 to 7 The present invention will be further described below, but the present invention is not limited to these embodiments.

[0032] A fixing device for hoisting PHC pipe pile heads includes: an arc-shaped plate 1, lifting lugs 2, lifting holes 3, a connecting plate 4, a through hole 5, a first bolt 6, and a first nut 7. Two arc-shaped plates 1 are provided, each arc-shaped, and the two arc-shaped plates 1 are symmetrically arranged vertically. The lifting lugs 2 are fixedly installed in the middle of the outer wall of the arc-shaped plate 1 along the front-to-back direction. Multiple lifting holes 3 are provided, and multiple lifting holes 3 are opened through the lifting lugs 2 along the front-to-back direction. This utility model provides multiple sets of lifting holes 3 at the lifting lugs 2, allowing the lifting point to be selected as needed based on the weight of the pile head and the center of gravity of the hoisting, significantly improving the flexibility of the hoisting operation. It can better adapt to the hoisting requirements under different working conditions and ensure the stability and safety of the hoisting process; four connecting plates 4 are provided, and every two connecting plates 4 are symmetrically installed on the left and right ends of the arc plate 1, and the connecting plates 4 at the top and bottom positions are correspondingly set; through holes 5 are opened through the connecting plates 4; the first bolt 6 is threaded through the inner cavity of the through hole 5 in the vertical direction; the first nut 7 is threaded on the first bolt 6, and the first nut 7 is tightly abutted against the upper surface of the top connecting plate 4; a first connecting wing plate 8 is fixedly installed at the connection between the lifting lug 2 and the arc plate 1; a second connecting wing plate 9 is fixedly installed at the connection between the connecting plate 4 and the arc plate 1.

[0033] Two sets of arc-shaped plates 1 are respectively fitted onto the upper and lower ends of the pile head to be cut, so that the four sets of connecting plates 4 are distributed in pairs. Multiple sets of first bolts 6 are threaded through the corresponding through holes 5, and then the first nuts 7 are tightened and locked on the first bolts 6, and the first nuts 7 are made to fit against the surface of the connecting plates 4, so as to realize the pairwise connection of the four sets of connecting plates 4, thus completing the fitting and fixing of the two sets of arc-shaped plates 1 at the pile head to be cut, forming an integral clamp.

[0034] This invention utilizes two sets of upper and lower arc-shaped plates 1 and four sets of connecting plates 4 to form a clamp at the pile head. Combined with existing hoisting equipment, it applies an upward hoisting force to the pile head, preventing uncontrolled collapse of the pile head during pile cutting. At the same time, the clamp provides effective support for the pile head, balancing its own weight and lateral forces, ensuring the pile head remains stable during the overall cutting process. This eliminates the need for the segmented cutting method used in traditional processes to prevent collapse, thus saving the complex process of multi-segment cutting due to the length of the pile head, reducing the number of segmented cuttings, improving construction efficiency, and ensuring construction progress.

[0035] The outer sides of the two corresponding connecting plates 4 are provided with wrapping components, which include: a first housing 10 and a second housing 11. The first housing 10 is fitted onto the front corner of the two corresponding connecting plates 4; the second housing 11 is fitted onto the rear corner of the two corresponding connecting plates 4. The two sets of first housing 10 and second housing 11 on both sides are respectively fitted onto the edges of the left and right sets of connecting plates 4, and the relative positions of the first housing 10 and second housing 11 are adjusted so that their inner walls are respectively attached to the outer corners of the connecting plates 4. After the two sets of arc-shaped plates 1 are assembled, the connecting plates 4 at both ends have a reinforcement function. Specifically, the first set of housing 10 and the second set of housing 11 form a wrap-around reinforcement structure at the ends of the two sets of connecting plates 4 corresponding to the upper and lower parts. This structure can assist the first bolt 6 in further reinforcing and locking the upper and lower connecting plates 4 in the front-to-back direction. It can disperse the point stress generated when the upper and lower connecting plates 4 are connected by the first bolt 6 alone, further ensuring the stability of the upper and lower arc plates 1 in the front-to-back direction after assembly, and thus ensuring that the clamp formed by the two sets of arc plates 1 remains stable during the subsequent pile head hoisting process.

[0036] The package assembly also includes: a second housing 11, a connecting seat 12, an elongated hole 13, a second bolt 14, and a second nut 15. There are two connecting seats 12, and the two connecting seats 12 are respectively fixedly installed on the upper and lower sides of the first housing 10. The elongated hole 13 is opened on the connecting seat 12. There are two second bolts 14, and the two second bolts 14 are respectively fixedly installed on the upper and lower sides of the second housing 11, and the second bolts 14 penetrate the inner cavity of the elongated hole 13. The second nut 15 is threaded onto the second bolt 14, and the second nut 15 is tightly abutted against the outer wall of the connecting seat 12.

[0037] In this invention, the distance between the corresponding first and second housing sets 10 is adjustable. This feature allows for adaptive adjustments to the final wrapping position of the first and second housing sets 11 based on the different widths of the connecting plate 4. Furthermore, after adjustment, the positions of the first and second housing sets 10 can be locked using components such as the connecting seat 12 and the elongated hole 13. This design significantly enhances the flexibility of the device, enabling it to adapt to various specifications of connecting plates 4, thereby improving the device's versatility and effectively expanding its application range.

[0038] After adjustment, tighten the second nut 15 to firmly position the connecting seat 12 on the second housing 11, thereby fixing the position of the second bolt 14 in the inner cavity of the elongated hole 13. In this state, the first housing 10 and the second housing 11 form a wrap-around reinforcement structure on the outside of the connecting plate 4, further reinforcing the position of the upper and lower connecting plates 4 in the front-back direction.

[0039] Locking components are provided at the first housing 10 and the second housing 11. The locking components include: a vertical plate 16, an extension arm 18, a third bolt 19, and an abutment piece 20. The vertical plate 16 is fixed and vertically installed on the top connecting plate 4. There are two extension arms 18, which are symmetrically installed on the outer wall of the vertical plate 16. The third bolt 19 is threaded through the outer wall of the extension arm 18. The abutment piece 20 is fixedly installed at the end of the third bolt 19 near the vertical plate 16, and the abutment piece 20 is in close contact with the side wall of the first housing 10 or the second housing 11.

[0040] By tightening the third bolt 19, the abutment piece 20 is brought into close contact with the outer walls of the first housing 10 and the second housing 11, thereby locking the first housing 10 and the second housing 11 in the left-right direction on the outer wall of the connecting plate 4.

[0041] After the first housing 10 and the second housing 11 reinforce the upper and lower connecting plates 4 in a front-to-back manner, they can be locked in the side wall direction of the connecting plate 4 by means of the synergistic action of components such as the upright plate 16, the extension arm 18, the third bolt 19, and the abutment piece 20. This locking mechanism can effectively prevent the first housing 10 and the second housing 11 from falling off the end of the connecting plate 4, and further ensure that the first housing 10 and the second housing 11 are positioned in all directions in the front-to-back and side directions at the end of the connecting plate 4, thereby enhancing the stability of the overall reinforced structure.

[0042] In addition, a third connecting wing plate 17 is fixedly installed at the connection between the upright plate 16 and the connecting plate 4, which enables the upright plate 16 to be further stably connected to the connecting plate 4.

[0043] The front end of the lifting lug 2 extends forward to form the front wall of the arc plate 1, which facilitates the lifting of existing lifting equipment at the front end of the lifting lug 2 and ensures that the lifting point is not limited to the width of the arc plate 1.

[0044] A rubber pad is provided circumferentially on the inner wall of the arc-shaped plate 1 to provide greater friction between the arc-shaped plate 1 and the pile head, further ensuring stability during hoisting. The arc-shaped plate 1 is made of arc-shaped steel plate with a diameter of 14mm to ensure hoisting strength. In this utility model, the upper and lower sets of arc-shaped plates 1 are designed with arc-shaped steel plates, which can better fit the outer contour of the fixed part, thereby increasing the contact area and improving the fit. At the same time, it cooperates with the through holes 5, the first bolts 6, the first nuts 7 and other components provided at the four sets of connecting plates 4. With the coordinated operation of each component, a structurally stable closed clamp can be formed. The above structural design simplifies the operation steps during assembly, and can complete the installation or disassembly without the need for complex tools, which greatly improves the assembly efficiency. Moreover, this setting can ensure that the device maintains good structural stability and performance after multiple assembly and disassembly, realizing effective reuse and reducing the cost of use. The second connecting wing plate 9 is made of steel, which plays a more stable role in the connection between the arc-shaped plate 1 and the connecting plate 4.

[0045] This device is used in conjunction with existing hoisting equipment. Specifically, the existing hoisting equipment is hooked and connected to the lifting hole 3 at the lifting lug 2 of this device to achieve the overall lifting of this device and the pile head. The existing hoisting equipment is existing technology, and its stable connection method with this device is also existing technology. It is sufficient to meet the usage requirements. No model limitation or further details are provided for the aforementioned existing components.

[0046] The working principle of the fixing device for hoisting the pile head of a PHC pipe pile in this embodiment is as follows:

[0047] Two sets of arc-shaped plates 1 are respectively fitted onto the upper and lower ends of the pile head to be cut, so that the four sets of connecting plates 4 are distributed in pairs; multiple sets of first bolts 6 are threaded through the corresponding through holes 5, and the first nuts 7 are tightened and locked to the first bolts 6 and attached to the surface of the connecting plates 4, so as to realize the pairwise connection of the four sets of connecting plates 4, that is, to complete the fitting and fixing of the two sets of arc-shaped plates 1 at the pile head to be cut, forming an integral clamp.

[0048] The first and second sets of housing 10 and housing 11 are respectively fitted onto the edges of the left and right connecting plates 4. The relative positions of the first and second sets of housing 10 and housing 11 are adjusted so that their inner walls are respectively attached to the corners of the outer walls of the connecting plates 4. After adjustment, the second nut 15 is tightened to fix the connecting seat 12 on the second housing 11, thereby fixing the position of the second bolt 14 in the cavity of the elongated hole 13. At this time, the first and second sets of housing 10 and housing 11 form a wrap-around reinforcement structure on the outside of the connecting plate 4, further reinforcing the position of the upper and lower connecting plates 4 in the front and back directions. The third bolt 19 is tightened to make the abutment piece 20 tightly abut against the outer walls of the first and second sets of housing 10 and housing 11, thereby locking the first and second sets of housing 10 and housing 11 in the left and right directions on the outer walls of the connecting plate 4.

[0049] The existing hoisting equipment is hooked and connected to the lifting holes 3 at appropriate positions of the lifting lugs 2 of this device, and the hoisting operation is carried out at an appropriate time; the pile head to be cut is cut using market-standard equipment to ensure that the pile head remains stable during the cutting process, effectively avoiding the drawbacks of uncontrolled collapse and segmented cutting;

[0050] This utility model uses two sets of upper and lower arc-shaped plates 1 and four sets of connecting plates 4 to form a clamping device. Combined with hoisting equipment, it provides upward lifting force to the pile head, preventing uncontrolled collapse of the pile head during pile cutting. The clamping device's effective support for the pile head avoids the cumbersome step of segmented cutting for excessively long pile heads, reducing the number of cuts, improving construction efficiency, and ensuring construction progress. The upper and lower arc-shaped plates 1 are designed with arc-shaped steel plates and, together with related components, form a stable and closed clamping device, simplifying assembly and disassembly steps, eliminating the need for complex tools, improving efficiency, and allowing for reuse, thus reducing costs. After the upper and lower arc-shaped plates 1 are joined, they form a first set of housing 10 and a second set of housing 11. The enclosed reinforcement structure can disperse point stress, ensure stability in the front-to-back direction after assembly, and ensure the overall stability of the clamp. The distance between the corresponding first and second housing sets 10 and 11 is adjustable. After adjustment, it is locked by components, which improves the flexibility of the device, enhances its versatility, and expands its application range. After the first and second housing sets 10 and 11 are reinforced, the side wall direction is locked by relevant components to prevent them from falling off the end of the connecting plate 4, ensuring all-round positioning and strengthening the overall structural stability. The setting of multiple sets of lifting holes 3 at the lifting lugs 2 allows the lifting point to be selected as needed, improving lifting flexibility, adapting to different working conditions, and ensuring lifting stability and safety.

[0051] This utility model can effectively avoid safety hazards during pile cutting, reduce the workload of segmented cutting to ensure construction progress, simplify the assembly and disassembly process, be reused to reduce costs, and has good flexibility, versatility and stability, adapting to different working conditions and ensuring construction safety and efficiency.

[0052] To provide a more detailed understanding of the features and technical content of the embodiments of this disclosure, the implementation of the embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for illustrative purposes only and are not intended to limit the embodiments of this disclosure. In the following technical description, for ease of explanation, several details are used to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be simplified in their depiction to simplify the drawings.

[0053] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this disclosure described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0054] In this disclosure, the terms "upper," "lower," "inner," "middle," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for better description of the embodiments of this disclosure and their implementations, and are not intended to limit the indicated devices, elements, or components to having a specific orientation, or to require them to be constructed and operated in a specific orientation. Furthermore, some of the aforementioned terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may in some cases indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in the embodiments of this disclosure according to the specific circumstances.

[0055] Furthermore, the terms "set up," "connect," and "fix" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances.

[0056] Unless otherwise stated, the term "multiple" means two or more.

[0057] In this embodiment of the disclosure, the character " / " indicates that the objects before and after it are in an "or" relationship. For example, A / B means: A or B.

[0058] The term "and / or" describes the relationship between objects, indicating that there can be three relationships. For example, A and / or B means: A or B, or A and B.

[0059] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A fixing device for hoisting and transporting the pile head of a PHC pipe pile, characterized in that: include: Arc-shaped plate (1), two arc-shaped plates (1) are provided, each arc-shaped plate (1) is set as arc, and the two arc-shaped plates (1) are arranged symmetrically above and below; Lifting lug (2), the lifting lug (2) is fixedly installed in the middle of the outer side wall of the arc plate (1) in the front-back direction; The lifting hole (3) is provided in multiple ways, and the multiple lifting holes (3) are opened through the lifting lug (2) in the front-back direction; Connecting plate (4), four connecting plates (4) are provided, and every two connecting plates (4) are symmetrically installed on the left and right ends of the arc plate (1), and the connecting plates (4) at the upper and lower positions are correspondingly provided; Through hole (5), the through hole (5) is opened through the connecting plate (4); The first bolt (6) is threaded through the inner cavity of the through hole (5) in the vertical direction; The first nut (7) is threaded onto the first bolt (6), and the first nut (7) is in close contact with the upper surface of the connecting plate (4) at the top.

2. The fixing device for hoisting and transporting PHC pipe pile heads according to claim 1, characterized in that: A first connecting wing plate (8) is fixedly installed at the connection between the lifting lug (2) and the arc plate (1).

3. The fixing device for hoisting and transporting PHC pipe pile heads according to claim 1, characterized in that: A second connecting wing plate (9) is fixedly installed at the connection between the connecting plate (4) and the arc plate (1), and the distance between the two ends of the second connecting wing plate (9) on the arc-shaped outer wall of the arc plate (1) is 1 / 3 to 1 / 2 of the arc length of the outer wall of the arc plate (1).

4. The fixing device for hoisting and transporting PHC pipe pile heads according to claim 1, characterized in that: The outer sides of the two corresponding connecting plates (4) are provided with wrapping components, the wrapping components including: The first set of housing (10) is fitted onto the front corner of the two corresponding connecting plates (4); The second housing (11) is fitted onto the rear corner of the two corresponding connecting plates (4).

5. The fixing device for hoisting and transporting PHC pipe pile heads according to claim 4, characterized in that: The package component also includes: Connecting seat (12), two connecting seats (12) are provided, and the two connecting seats (12) are respectively fixedly installed on the upper and lower sides of the first housing (10); An elongated hole (13) is provided on the connecting seat (12); The second bolt (14) is provided in two parts, and the two second bolts (14) are respectively fixedly installed on the upper and lower sides of the second housing (11), and the second bolts (14) penetrate the inner cavity of the elongated hole (13); The second nut (15) is threaded onto the second bolt (14), and the second nut (15) is in close contact with the outer wall of the connecting seat (12).

6. The fixing device for hoisting and transporting PHC pipe pile heads according to claim 4, characterized in that: Locking components are provided at the first housing (10) and the second housing (11), the locking components comprising: An upright plate (16) is fixed and vertically installed on the top connecting plate (4); There are two extension arms (18), and the two extension arms (18) are symmetrically installed on the outer side wall of the upright plate (16). The third bolt (19) has its threads penetrating the outer wall of the extension arm (18); Abutting piece (20) is fixedly installed at the end of the third bolt (19) near the side of the upright plate (16), and the abutting piece (20) is in close contact with the side wall of the first housing (10) or the second housing (11).

7. The fixing device for hoisting and transporting PHC pipe pile heads according to claim 6, characterized in that: A third connecting wing plate (17) is fixedly installed at the connection between the upright plate (16) and the connecting plate (4).

8. The fixing device for hoisting and transporting the pile head of a PHC pipe pile according to claim 1, characterized in that: The front end of the lug (2) extends forward from the front side wall of the arc-shaped plate (1).

9. The fixing device for hoisting and transporting the pile head of a PHC pipe pile according to claim 1, characterized in that: The arc plate (1) is configured as an arc-shaped steel plate.

10. The fixing device for hoisting and transporting the pile head of a PHC pipe pile according to claim 1, characterized in that: The inner wall of the arc-shaped plate (1) is provided with a rubber pad layer along the circumference.

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