A piling clamping device

Abstract

This application relates to the field of marine engineering construction technology, specifically to a pile clamping device. The pile clamping device includes a clamping body, a pile clamping plate, and connecting components. The clamping body includes at least two clamping units, with the ends of adjacent clamping units connected by fasteners to form a ring structure for clamping the foundation pile. At least one fastener includes an mounting portion. The pile clamping plate has mounting holes. The connecting components include a connecting portion, a connecting rod, a threaded rod, and an assembly nut. One end of the connecting rod is fixedly connected to the connecting portion, and the other end is fixedly connected to the threaded rod. The connecting portion is movably connected to the mounting portion. The threaded rod and the assembly nut are screwed together, and a limiting portion is provided between the connecting rod and the threaded rod. The threaded rod passes through the mounting hole, and the end faces of the limiting portion and the assembly nut abut against both sides of the pile clamping plate. This pile clamping device can adapt to harsh marine environments, ensuring the stability of the foundation pile. It has high overall structural safety, a simple installation process, low construction difficulty, and high efficiency.

Description

Technical Field

[0001] This application relates to the field of construction technology for water conservancy projects, and more specifically, to a pile clamping device. Background Technology

[0002] After the foundation piles are driven into the water, they need to be clamped as soon as possible to prevent individual piles from shifting or even becoming unstable and overturning due to factors such as water flow, waves, and boulders. Clamping piles is a temporary measure before the cofferdam construction process. Generally, several piles are connected into a whole by welding channel steel. However, under harsh sea conditions, this existing method of clamping piles cannot adapt to the dynamic loads, temperature changes, and slight deformations of the marine environment, increasing construction difficulty, reducing construction efficiency, and increasing maintenance costs. Utility Model Content

[0003] In view of this, this application provides a pile clamping device, which aims to improve the problems of low adaptability, high construction difficulty and low efficiency of existing pile clamping methods for water conditions.

[0004] This application provides a pile clamping device for connecting two adjacent foundation piles, comprising: The clamp body includes at least two clamp units, the ends of two adjacent clamp units are connected by fasteners to form a ring structure for clamping the foundation pile, and at least one of the fasteners includes a mounting part; A pile clamping plate, wherein mounting holes are provided at both ends of the pile clamping plate; and A connector includes a connecting part, a connecting rod, a threaded rod, and an assembly nut. One end of the connecting rod is fixedly connected to the connecting part, and the other end of the connecting rod is fixedly connected to the threaded rod. The connecting part is movably connected to the mounting part. The threaded rod and the assembly nut are screwed together. A limiting part is provided between the connecting rod and the threaded rod. The threaded rod passes through the mounting hole, and the end faces of the limiting part and the assembly nut abut against the two sides of the pile clamping plate, respectively.

[0005] Preferably, the mounting part is a rod structure, the connecting part is a ring structure, and the mounting part is fitted inside the ring structure with a gap.

[0006] Preferably, there are two clamp units, and at least one end of the two clamp units on the same side is provided with an assembly plate, and the assembly plate has an assembly hole; the mounting part passes through the two corresponding assembly holes. The first end of the mounting part is connected to the head, and the end face of the head abuts against the mounting plate of one of the clamp units; The second end of the mounting part is screwed with a fastening nut, and the end face of the fastening nut abuts against the assembly plate of another clamp unit.

[0007] Preferably, the limiting part includes a limiting washer and a limiting nut, the limiting washer is fixedly connected to the threaded rod, the limiting nut is screwed to the threaded rod, and the end face of the limiting nut abuts against the clamping plate.

[0008] Preferably, there are multiple mounting holes, which are evenly arranged along the extension direction of the pile clamping plate.

[0009] Preferably, the head is fixedly connected to the mounting part.

[0010] Preferably, the head is a nut structure, and the head is screwed to the first end of the mounting part.

[0011] Preferably, the inner side of the clamp unit is provided with a protrusion, which is made of rubber.

[0012] Preferably, the mounting hole is a strip-shaped hole.

[0013] Preferably, the clamp unit is an arc structure made of channel steel through a bending process.

[0014] Compared with the prior art, the pile clamping device provided in this application achieves at least the following beneficial effects: (1) The pile clamping device provided in this application includes a clamping body, a pile clamping plate, and a connector. The clamping body is connected to the end of the pile clamping plate through the connector. The clamping body includes at least two clamping units. The ends of two adjacent clamping units are connected by fasteners to form a ring structure for clamping the pile, so that the clamping body can surround the outside of the pile. The fasteners can make the inner wall of the clamping body abut against the outer circumferential surface of the pile to form static friction constraint, and the clamping body and the pile are relatively fixed. The connector includes a connecting part, a connecting rod, a threaded rod, and an assembly nut. At least one fastener includes an mounting part, and the connecting part is connected to the mounting part. The connection is achieved by connecting the connector to the clamping body. The two ends of the connecting rod are fixedly connected to the connecting part and the threaded rod, respectively. The threaded rod and the assembly nut are screwed together. A limiting part is provided between the connecting rod and the threaded rod. The threaded rod passes through the installation hole. The end faces of the limiting part and the assembly nut abut against the two sides of the pile clamping plate, so that the end faces of the limiting part and the assembly nut can limit the pile clamping plate from both sides, ensuring that the pile clamping plate will not come out of the threaded rod. In this way, multiple piles can be connected into a whole through the pile clamping plate, ensuring that the piles remain stable under conditions such as water flow, wind and waves and boulders, and avoiding the phenomenon of pile tilting, displacement or collapse.

[0015] (2) In the pile clamping device provided in this application, the rigid connection of traditional pile clamping will directly transfer the load (such as horizontal thrust and bending moment) to the adjacent piles, which may cause the pile body to be overloaded. In this pile clamping device, because the connecting part and the installation part are movably connected, the connecting part and the fastener can form a movable connection, so the connecting part can move relative to the clamping body. At the same time, the clamping bodies installed on the two piles are connected by the pile clamping plate. The two ends of the pile clamping plate are movably connected to the clamping body through the connecting parts. The connection method that allows relative movement can reduce the load transfer efficiency, reduce the additional internal force of the piles, balance the structural stability and adaptability of the interconnected piles, ensure that the connected piles are subjected to force in a coordinated manner, and reduce the stress concentration and load transfer risk by allowing relative displacement. It can adapt to the working conditions of harsh aquatic environment, improve the overall structural safety, and improve the pile clamping effect.

[0016] (3) Compared with the prior art, when connecting the foundation piles using the pile clamping device provided in this application, welding is not required, the installation process is simple and is not affected by the water conditions, the construction difficulty is low and the construction efficiency is high.

[0017] Of course, any product implementing this application need not specifically need to achieve all of the technical effects described above at the same time.

[0018] Other features and advantages of this application will become clear from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description

[0019] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the present application and, together with their description, serve to explain the principles of the present application.

[0020] Figure 1 The diagram shown is a top view of the pile clamping device provided in the embodiment of this application under its usage state. Figure 2 The figure shown is a three-dimensional structural diagram of the pile clamping device provided in the embodiment of this application under the condition of use; Figure 3 The diagram shown is a structural schematic of the clamp body provided in an embodiment of this application; Figure 4 The figure shown is a structural schematic diagram of a fastener provided in an embodiment of this application; Figure 5 The diagram shown is a structural schematic of the connector provided in an embodiment of this application; Figure 6 The diagram shown is a structural schematic of the clamp unit provided in an embodiment of this application; Figure 7 The diagram shown is a structural schematic of the pile clamping plate provided in an embodiment of this application.

[0021] Explanation of reference numerals in the attached figures: 10-Foundation pile, 100-Clamping body, 110-Clamping unit, 111-Assembly plate, 1111-Assembly hole, 120-Fastener, 121-Installation part, 122-Head, 123-Fastening nut, 200-Pile clamping plate, 201-Installation hole, 300-Connector, 310-Connection part, 320-Connecting rod, 330-Threaded rod, 340-Assembly nut, 350-Limiting part, 351-Limiting washer, 352-Limiting nut. Detailed Implementation

[0022] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the present application.

[0023] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the scope of this application and its application or use.

[0024] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0025] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0026] Various modifications and variations can be made to this application without departing from its spirit or scope, which will be apparent to those skilled in the art. Therefore, this application is intended to cover modifications and variations falling within the scope of the corresponding claims (the claimed technical solutions) and their equivalents. It should be noted that the implementation methods provided in the embodiments of this application can be combined with each other without contradiction.

[0027] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures.

[0028] Figure 1 The diagram shown is a top view of the pile clamping device provided in the embodiment of this application under its usage condition. Figure 2 The figure shown is a three-dimensional structural diagram of the pile clamping device provided in the embodiment of this application under the condition of use. Figure 3 The diagram shown is a structural schematic of the clamp body provided in an embodiment of this application. Figure 4The figure shown is a structural schematic diagram of a fastener provided in an embodiment of this application. Figure 5 The diagram shown is a structural schematic of the connector provided in an embodiment of this application.

[0029] Please refer to Figures 1 to 5 This application provides a pile clamping device for connecting two adjacent piles 10. The pile clamping device includes a clamping body 100, a pile clamping plate 200, and a connector 300.

[0030] The clamp body 100 includes at least two clamp units 110, and adjacent clamp units 110 are connected by fasteners 120 to form a ring structure for clamping the foundation pile 10. At least one fastener 120 includes a mounting part 121. The pile clamping plate 200 has mounting holes 201 at both ends; The connector 300 includes a connecting part 310, a connecting rod 320, a threaded rod 330, and an assembly nut 340. One end of the connecting rod 320 is fixedly connected to the connecting part 310, and the other end of the connecting rod 320 is fixedly connected to the threaded rod 330. The connecting part 310 is movably connected to the mounting part 121. The threaded rod 330 and the assembly nut 340 are screwed together. A limiting part 350 is provided between the connecting rod 320 and the threaded rod 330. The threaded rod 330 passes through the mounting hole 201, and the end faces of the limiting part 350 and the mounting nut 340 abut against the two sides of the clamping plate 200, respectively.

[0031] It should be understood that the clamp body 100 includes at least two clamp units 110, meaning that the clamp body 100 can include two clamp units 110 (see...). Figure 3 It may also include two or more clamping units 110, such as three or four clamping units 110. This application does not make specific restrictions on this, as long as all clamping units 110 are connected to each other in sequence to form a ring structure that encloses the pile 10.

[0032] It should be understood that the connection of adjacent clamp units 110 via fasteners 120 to form a ring structure for clamping the pile 10 means that the inner shape and dimensions of the clamp body 100 are compatible with the shape and dimensions of the outer circumferential surface of the pile 10, and the inner side of the clamp body 100 is constrained by static friction with the outer circumferential surface of the pile 10. In one feasible embodiment, see [reference needed]. Figures 1 to 3The outer periphery of the pile 10 is circular, and the inner side of the clamp 100 is also circular. The diameter of the outer periphery of the pile 10 corresponds to and matches the diameter of the inner side of the clamp 100. Specifically, the diameter of the outer periphery of the pile 10 should not be greater than the diameter of the inner side of the clamp 100. In another feasible embodiment, the outer periphery of the pile 10 can also be a polygonal shape such as a triangle or rectangle. This application does not impose specific restrictions on this, as long as the inner side of the clamp 100 can match the shape and size of the outer wall of the pile 10, and the inner wall of the clamp 100 can tightly abut against the outer wall of the pile 10 without slipping. In addition, since adjacent clamp units 110 are connected by fasteners 120, the number of fasteners 120 should be the same as the number of clamp units 110; one or more of the multiple fasteners 120 (when the number of fasteners 120 is multiple, it does not exceed the number of clamp units 110) include a mounting part 121.

[0033] It should be noted that the connecting part 310 is movably connected to the mounting part 121. This connection method not only restricts the separation between the connecting part 310 and the mounting part 121, but also allows a certain degree of relative movement between the two. This relative movement can be sliding, rotating, or a combination of sliding and rotating. This application does not impose any specific restrictions on this.

[0034] When clamping multiple foundation piles 10 using the clamping device provided in this embodiment, firstly, adjacent clamping units 110 are connected by fasteners 120. Simultaneously, according to usage requirements, the mounting portions 121 of one or more fasteners 120 are connected to the connecting portions 310 of the connector 300. The foundation pile 10 is installed in the central space of the annular structure of the clamping body 100, and the fasteners 120 are continued to ensure that the inner side of the clamping body 100 is tightly abutted against the foundation pile 10. Then, the above operation is repeated, and the outer walls of the multiple foundation piles 10 are all clamped. A clamping body 100 is installed, and the clamping body 100 is connected to the connector 300 through the mounting part 121. Then, the mounting hole 201 at one end of the pile clamping plate 200 is connected to the threaded rod 330 of the connector 300 installed on one pile 10, and the mounting hole 201 at the other end of the pile clamping plate 200 is connected to the threaded rod 330 of the connector 300 installed on another pile 10. That is, the pile clamping plate 200 can connect two piles 10 together. By repeating the above operation, multiple piles 10 can be connected into a whole to complete the pile clamping.

[0035] This embodiment provides a pile clamping device, which includes a clamping body 100, a pile clamping plate 200, and a connector 300. The clamping body 100 is connected to the end of the pile clamping plate 200 via the connector 300. The clamping body 100 includes at least two clamping units 110. The ends of two adjacent clamping units 110 are connected by fasteners 120 to form a ring structure for clamping the pile 10, allowing the clamping body 100 to surround the outside of the pile 10. The fasteners 120 ensure that the inner wall of the clamping body 100 is in close contact with the outer circumferential surface of the pile 10, forming a static friction constraint, thus fixing the clamping body 100 to the pile 10. The connector 300 includes a connecting part 310, a connecting rod 320, a threaded rod 330, and an assembly nut 340. At least one fastener 120 includes an mounting part 121. The connecting part 310 and the mounting part 120 are connected... 21. Connection: The connector 300 is connected to the clamp body 100. The two ends of the connecting rod 320 are fixedly connected to the connecting part 310 and the threaded rod 330, respectively. The threaded rod 330 is screwed to the assembly nut 340. A limiting part 350 is provided between the connecting rod 320 and the threaded rod 330. The threaded rod 330 passes through the mounting hole 201. The end faces of the limiting part 350 and the assembly nut 340 abut against the two sides of the pile clamping plate 200, so that the end faces of the limiting part 350 and the assembly nut 340 can limit the pile clamping plate 200 from both sides, ensuring that the pile clamping plate 200 will not come out of the threaded rod 330. Thus, multiple piles 10 can be connected into a whole through the pile clamping plate 200, ensuring that the piles 10 remain stable under conditions such as water flow, wind and waves and boulders, and preventing the piles 10 from tilting, shifting or falling.

[0036] Furthermore, because the rigid connection of traditional pile clamps directly transfers loads (such as horizontal thrust and bending moment) to adjacent piles, it may cause pile overload. In this pile clamping device, because the connecting part 310 is movably connected to the mounting part 121, the connecting piece 300 and the fastener 120 can form a movable connection, so the connecting piece 300 can move relative to the clamping body 100. At the same time, the clamping bodies 100 installed on the two piles 10 are connected by the pile clamping plate 200. The two ends of the pile clamping plate 200 are movably connected to the clamping body 100 by the connecting piece 300. The connection method that allows relative movement can reduce load transfer efficiency, reduce additional internal forces on the piles 10, and balance the structural stability and adaptability of the interconnected piles 10. It can ensure that the connected piles 10 share the load, and reduce stress concentration and load transfer risks by allowing relative displacement. It can adapt to harsh aquatic environments, improve overall structural safety, and enhance the pile clamping effect.

[0037] Furthermore, compared to existing technologies, when connecting the foundation pile 10 using this pile clamping device, welding is not required, the installation process is simple and unaffected by water conditions, the construction difficulty is low, and the construction efficiency is high.

[0038] See Figures 3 to 5 In some embodiments, the mounting part 121 is a rod structure, and the connecting part 310 is a ring structure. The mounting part 121 is fitted inside the ring structure with a gap, and the rod structure and the ring structure are connected with a gap. The mounting part 121 and the connecting part 310 in this embodiment have a simple structure, are easy to manufacture, and have a simple assembly process. In addition, the ring structure can rotate, slide, or perform a combination of rotation and sliding relative to the rod structure. When the interconnected piles 10 are under force, they can drive the pile clamping plate 200 and the connecting member 300 to generate slight movements relative to the mounting part 121 to release stress, avoid structural damage or stress concentration of the pile clamping device caused by rigid connection, and improve the service life of the pile clamping device.

[0039] Figure 6 The diagram shown is a structural schematic of the clamp unit provided in an embodiment of this application.

[0040] Combination Figure 3 and Figure 6 In some embodiments, there are two clamping units 110, and at least one end of the two clamping units 110 is provided with an assembly plate 111, and the assembly plate 111 is provided with an assembly hole 1111; the mounting part 121 passes through the corresponding two assembly holes 1111. The first end of the mounting part 121 is provided with a head 122, and the end face of the head 122 abuts against a mounting plate 111. The fastener 120 also includes a fastening nut 123, which is screwed to the second end of the mounting part 121, and the end face of the fastening nut 123 abuts against another mounting plate 111.

[0041] In this embodiment, two clamping units 110 are connected to form a ring structure. Through the tensioning action of fasteners 120, the clamping body 100 is evenly attached to the surface of the pile 10. Compared with a multi-segment structure, this reduces local stress concentration and is suitable for scenarios that bear horizontal loads (such as water flow impact and wind and waves). It can effectively suppress the lateral displacement and torsion of the pile 10 and has high connection reliability. The heads 122 and fastening nuts 123 at both ends of the mounting part 121 abut against the mounting plates 111 on the same side of the two clamping units 110, forming an "adjustable tensioning mechanism". In this way, by rotating the fastening nuts 123, the tightness between the clamping body 100 and the pile 10 can be precisely adjusted. The installation is simple and helps to improve the installation efficiency of the pile clamping device.

[0042] In some embodiments, the limiting part 350 includes a limiting washer 351 and a limiting nut 352. The limiting washer 351 is fixedly connected to the threaded rod 330, and the limiting nut 352 is screwed to the threaded rod 330. The end face of the limiting nut 352 abuts against the clamping plate 200.

[0043] When the pile clamping plate 200 and the threaded rod 330 are installed, the limiting nut 352 is screwed to the threaded rod 330. One end face of the limiting nut 352 abuts against the limiting washer 351. After the threaded rod 330 passes through the mounting hole 201, the other end face of the limiting nut 352 abuts against one side of the pile clamping plate 200. The operation causes the assembly nut 340 to be screwed to the threaded rod 330 and tightened, so that the end face of the assembly nut 340 abuts against the other side of the pile clamping plate 200.

[0044] In the pile clamping device provided in this embodiment, the limiting washer 351 and the limiting nut 352 form a double constraint, which improves the constraint force of the limiting part 350 on the pile clamping plate 200. In specific implementation, the limiting washer 351 can be a circular washer, and its radial dimension can be larger than that of the limiting nut 352, so as to provide more reliable support for the limiting nut 352.

[0045] Figure 7 The diagram shown is a structural schematic of the pile clamping plate provided in an embodiment of this application.

[0046] Because the installation positions of the foundation piles 10 may change during actual construction, to avoid the need for connection using pile clamping plates 200 with different installation holes 201 due to differences in the spacing of the foundation piles 10, see [link to relevant documentation]. Figure 7 In some embodiments, there are multiple mounting holes 201, which are arranged along the extension direction of the pile clamping plate 200. Thus, when the pile clamping plate 200 is assembled with the threaded rod 330, the threaded rod 330 can be inserted through the corresponding mounting hole 201 on the pile clamping plate 200 according to the actual spacing of the foundation piles 10. By opening multiple sets of adjustable-spacing strip-shaped mounting holes 201 on the same plate, the prefabricated pile clamping plate 200 achieves compatibility and adaptation to different foundation pile 10 spacings, reduces the size of the prefabricated pile clamping plate 200, and achieves the universal design goal of "one plate for multiple piles".

[0047] In specific implementation, along the extension direction of the pile clamping plate 200, the multiple mounting holes 201 can be evenly arranged (i.e., the spacing between adjacent mounting holes 201 is the same), or they can be arranged in a gradual manner (i.e., the spacing between mounting holes 201 increases or decreases regularly along the extension direction of the pile clamping plate (such as an arithmetic or geometric sequence)), in a group arrangement (i.e., the mounting holes 201 are divided into several groups, with the same spacing between holes in each group and different spacing between groups (such as "close-distance group", "medium-distance group", "far-distance group")), or other non-uniform arrangements. This application does not impose specific limitations on this.

[0048] In some embodiments, the head 122 is fixedly connected to the mounting part 121, so that the head 122 and the mounting part 121 as a whole can be configured as bolts. Bolts are simple in structure, easy to obtain and low in cost, which helps to reduce the cost of the pile clamping device and improve the versatility of parts.

[0049] In some embodiments, the head 122 is a nut structure, which is screwed to the first end of the mounting part 121. Thus, the mounting part 121 can be configured as a common screw, which has a simple structure, is easy to obtain and has low cost, which helps to reduce the cost of the pile clamping device and improve the versatility of parts.

[0050] In some embodiments, the inner side of the clamp unit 110 is provided with a protrusion, which is made of rubber. The protrusion can increase the friction coefficient of the inner side of the clamp unit 110, thereby increasing the friction between the inner wall of the clamp body 100 and the pile 10, and improving the connection reliability between the pile clamping device and the pile 10.

[0051] In some embodiments, the mounting hole 201 is a strip-shaped hole. This strip-shaped hole can accommodate deformations caused by construction deviations of the pile 10 and environmental stresses, further improving the versatility of the pile clamping plate 200. Furthermore, the threaded rod 330 can slide slightly within the strip-shaped hole along its long axis, converting constraint stress into frictional resistance and increasing the service life of the pile clamping device.

[0052] In some embodiments, the clamp unit 110 is an arc structure made of channel steel through a bending process. This clamp unit is readily available and easy to manufacture, which helps reduce the manufacturing cost of the pile clamping device. Specifically, the bending process can be a cold bending forming process. In addition, the channel steel can be selected from channel steel that has undergone a surface treatment process, for example, the surface treatment layer is hot-dip galvanized, which improves rust resistance.

[0053] While specific embodiments of this application have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of this application. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of this application. The scope of this application is defined by the appended claims.

Claims

1. A pile clamping device for connecting two adjacent foundation piles, characterized in that, include: The clamp body includes at least two clamp units, the ends of two adjacent clamp units are connected by fasteners to form a ring structure for clamping the foundation pile, and at least one of the fasteners includes a mounting part; A pile clamping plate, wherein mounting holes are provided at both ends of the pile clamping plate; and A connector includes a connecting part, a connecting rod, a threaded rod, and an assembly nut. One end of the connecting rod is fixedly connected to the connecting part, and the other end of the connecting rod is fixedly connected to the threaded rod. The connecting part is movably connected to the mounting part. The threaded rod and the assembly nut are screwed together. A limiting part is provided between the connecting rod and the threaded rod. The threaded rod passes through the mounting hole, and the end faces of the limiting part and the assembly nut abut against the two sides of the pile clamping plate, respectively.

2. The pile clamping device as described in claim 1, characterized in that, The mounting part is a rod structure, the connecting part is a ring structure, and the mounting part is fitted inside the ring structure with a gap.

3. The pile clamping device as described in claim 2, characterized in that, The number of clamp units is two, and at least one end of the two clamp units on the same side is provided with an assembly plate, and the assembly plate has an assembly hole; the mounting part passes through the two corresponding assembly holes. The first end of the mounting part is connected to the head, and the end face of the head abuts against the mounting plate of one of the clamp units; The second end of the mounting part is screwed with a fastening nut, and the end face of the fastening nut abuts against the assembly plate of another clamp unit.

4. The pile clamping device as described in claim 1, characterized in that, The limiting part includes a limiting washer and a limiting nut. The limiting washer is fixedly connected to the threaded rod, and the limiting nut is screwed to the threaded rod. The end face of the limiting nut abuts against the clamping plate.

5. The pile clamping device as described in claim 1, characterized in that, The number of mounting holes is multiple, and the multiple mounting holes are evenly arranged along the extension direction of the pile clamping plate.

6. The pile clamping device as described in claim 3, characterized in that, The head is fixedly connected to the mounting part.

7. The pile clamping device as described in claim 3, characterized in that, The head is a nut structure, and the head is screwed to the first end of the mounting part.

8. The pile clamping device as described in claim 1, characterized in that, The inner side of the clamp unit is provided with a protrusion, which is made of rubber.

9. The pile clamping device as described in claim 1, characterized in that, The mounting hole is a strip-shaped hole.

10. The pile clamping device as described in claim 1, characterized in that, The clamp unit is an arc structure made of channel steel through a bending process.

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