PHC tubular pile hoop for different pile diameters

Abstract

The utility model relates to the technical field of infrastructure construction auxiliary tools, in particular to a hoop for different pile diameters. Comprising an arc plate and a fastening bolt arranged at the end of the arc plate, and the arc plate comprises an arc plate section formed by connecting a plurality of arc plate chain links in series and connecting plates symmetrically arranged at the two ends of the arc plate section. The PHC pipe pile hoop can be suitable for various PHC pipe piles with different pile diameters, is good in universality, high in utilization rate, convenient to install and good in functionality, and is beneficial to saving construction cost, improving enterprise economic benefits and shortening the construction period; and the construction requirements of the cast-in-place cross beam can be met.

Description

Technical Field

[0001] This utility model relates to the technical field of auxiliary tools for infrastructure construction, and more specifically, to a clamp for piles of different diameters. Background Technology

[0002] The foundation construction of port terminals often requires the use of pipe piles of different diameters on the same construction site. For example, in the first phase of a PHC pile foundation terminal project in a certain work area, there are 90 φ1200 PHC pipe piles, 170 φ1000 PHC pipe piles, and 38 φ800 PHC pipe piles in the terminal area. Each frame has PHC pipe piles of different diameters under it. The cast-in-place beam structure above the pipe piles is large in volume and heavy in weight. The clamps are the foundation supporting the cast-in-place beams above. According to the construction sequence, the φ1200 PHC pipe piles, φ1000 PHC pipe piles, and φ800 PHC pipe piles need to be installed alternately. Existing technology requires three different specifications of clamps for PHC pipe piles of different diameters. The three different specifications of clamps cannot be mixed. Making too many clamps will increase costs and may not be needed in the future, while making too few clamps will affect the construction progress. Chinese Patent 2017212360543 discloses "A Variable Diameter Clamp", with authorization announcement number CN207229522U. This clamp includes an arc-shaped clamp plate, an adjusting bolt, and an adjusting nut. The upper end of the arc-shaped clamp plate has an upper mounting ear, and the lower end has a lower mounting ear. Upper bolt holes and lower bolt holes are respectively provided on the upper and lower mounting ears. An insert is provided at the end of the arc-shaped clamp plate closer to the upper mounting ear, and an insertion hole is provided at the end of the arc-shaped clamp plate closer to the lower mounting ear. The head of the adjusting bolt passes through one set of lower bolt holes and another set of upper bolt holes on the arc-shaped clamp plate and is screwed into the adjusting nut. The clamp also includes a fastening bolt. The arc-shaped clamp plate has a threaded hole, and the head of the fastening bolt is screwed from the outside of the arc-shaped clamp plate through the threaded hole to the inside of the arc-shaped clamp plate. While this clamp can adjust its diameter, it requires adjusting multiple circumferentially distributed fastening bolts, making it suitable only for communication poles or other small-diameter poles. Furthermore, the number of arc-shaped clamp pieces corresponds to the number of fastening bolts. If the number of fastening bolts and arc-shaped clamp pieces is small, although installation efficiency is improved, the arc-shaped clamp pieces deform significantly during installation, making it difficult to fit snugly against the outer wall of the pole. Increasing the number of arc-shaped clamp pieces allows for a tight fit against the outer wall, but this also increases the number of fastening bolts, making installation cumbersome and inefficient. Another Chinese patent, 2019201321559, discloses a "Variable Diameter Clamp" (authorization announcement number CN209557403U). Its structure includes a clamp body, a buckle, a slot, an anti-slip device, and a fixing device. By setting the fixing device, the equipment to be fixed is inserted into the slot, and external force causes the telescopic rack to retract inward, causing the connecting strip and rubber gasket to tightly wrap around the equipment. This type of variable diameter clamp must use a flexible clamp body. After installation, the telescopic rack is subjected to a large force, so it can only be used in situations with small diameter and low force, and cannot be used for large diameter, heavy load PHC pipe piles. Summary of the Invention

[0003] The purpose of this utility model is to provide a PHC pipe pile clamp with a reasonable structure, easy installation and construction, and high load-bearing capacity for different pile diameters.

[0004] The technical solution adopted by this utility model to solve the technical problem is:

[0005] The present invention relates to a PHC pipe pile clamp for different pile diameters, comprising an arc plate and fastening bolts disposed at the ends of the arc plate. The arc plate comprises an arc plate segment formed by multiple arc plate links connected in series, and connecting plates symmetrically disposed at both ends of the arc plate segment. The arc plate link comprises an arc-shaped plate body, pin seats fixedly connected to both sides of the back of the plate body along the length direction, and pins installed in the pin seats. The corresponding pin seats of adjacent plates are coaxially disposed and connected together by pins installed in the corresponding pin seats. The connecting mechanism comprises an end plate with the same specifications as the plate body, an end pin seat fixedly connected to the back of the end plate, and a connecting plate. The end pin seat and the connecting plate are respectively located at both ends of the end plate. The end pin seat is coaxially disposed with the corresponding pin seat of the adjacent plate body and connected by pins installed in the corresponding pin seats. A rib is fixedly connected between the connecting plate and the end plate. Bolt holes are provided on the connecting plate, and the fastening bolts are installed in the bolt holes.

[0006] This solution allows the PHC pipe pile clamp to be applied to various PHC pipe piles of different diameters, offering good versatility, high utilization rate, convenient installation, and good functionality. It helps save construction costs, improves the company's economic benefits, and shortens the construction period. It also has strong load-bearing capacity, meeting the requirements for cast-in-place beam construction.

[0007] Preferably, the length of the back side of the plate is greater than that of the front side, and the front side of the plate is provided with an anti-slip layer.

[0008] With this scheme, there can be a certain degree of deflection angle between two adjacent plates, thus forming arc plate segments with different curvatures.

[0009] Preferably, the pin seat includes a sleeve fixedly connected to the back of the plate and an angle plate fixedly connected between the outer wall of the sleeve and the plate, wherein the central axis of the sleeve is located on the extension line of the side of the plate.

[0010] This solution provides a robust pin seat structure that limits the deflection angle between adjacent plates, facilitating installation and construction.

[0011] Preferably, the pin seats on both sides of the same plate are staggered, and at least two pin seats are provided on each side.

[0012] With this solution, the entire arc plate segment is made up of plates of the same specification, which has strong versatility and helps to further reduce production costs.

[0013] Due to the above structure, the PHC pipe pile clamp is applicable to PHC pipe piles of various diameters, with good versatility, high utilization rate, convenient installation, and good functionality. It helps to save construction costs, improve the economic benefits of enterprises, and shorten the construction period; it also has strong load-bearing capacity and can meet the construction requirements of cast-in-place beams. Attached Figure Description

[0014] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the present invention and, together with their description, serve to explain the principles of the present invention.

[0015] Figure 1 This is a structural schematic diagram of one embodiment of the present invention.

[0016] Figure 2 yes Figure 1 A top view of the embodiment.

[0017] Figure 3 yes Figure 1 A magnified view of part A.

[0018] Figure 4 This is a schematic diagram of an arc plate chain link.

[0019] Figure 5 This is a schematic diagram of the assembly structure of two adjacent arc plate links in one embodiment.

[0020] Figure 6 This is a schematic diagram of the assembly structure of two adjacent arc plate links in another embodiment. Detailed Implementation

[0021] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.

[0022] 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.

[0023] 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.

[0024] 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.

[0025] like Figure 1 , Figure 2As shown, the PHC pipe pile clamp of this utility model for different pile diameters includes an arc plate and fastening bolts 2 disposed at the ends of the arc plate. The arc plate includes an arc plate segment formed by multiple arc plate links 1 connected in series, and connecting mechanisms 3 symmetrically disposed at both ends of the arc plate segment. Multiple arc plate links 1 connected in series form an arc plate with a variable curvature to adapt to the outer circumferential curvature of PHC pipe piles with different pile diameters. In use, two such arc plate links 1 are fastened to each other on the outer circumferential surface of the PHC pipe pile and fixed together by the connecting mechanisms 3 on both sides.

[0026] like Figure 4 As shown, the arc plate link 1 includes an arc-shaped plate body 4, pin seats 5 fixedly connected to both sides of the back of the plate body 4 along its length, and pins 6 installed in the pin seats 5. The corresponding pin seats of adjacent plates 4 are coaxially arranged and connected together by pins installed in the corresponding pin seats. The plate body 4 is made of steel plate that is slightly bent into an arc shape. The pin seat 5 includes a sleeve 51 fixedly connected to the back of the plate body 4 and an angle plate 52 fixedly connected between the outer wall of the sleeve 51 and the plate body 4. The central axis of the sleeve 51 is located on the extension line of the side of the plate body 4. The sleeve 51 is a cylindrical structure, and its side wall is welded to the edge of the back of the plate body 4. The angle plate 52 supports the sleeve 51 and the plate body 4, which serves to reinforce the sleeve 51, making the connection between the sleeve 51 and the plate body 4 more secure and preventing the sleeve 51 from falling off under force. In addition, the length of the back side of the plate 4 is greater than that of the front side. The front side of the plate 4 is provided with an anti-slip layer 7. This anti-slip layer 7 can be a rubber sheet glued to the plate 4 with strong adhesive, which can prevent contamination and wear on the surface of the pipe pile, and at the same time greatly increase the friction between the clamp and the pipe pile. When two adjacent plates 4 are placed together, the back sides of the plates 4 first abut against each other, while a certain gap remains between the front sides of the two plates 4. This allows for a certain gap between two adjacent anti-slip layers 7, preventing the anti-slip layers 7 from overlapping and affecting the tight fit between the arc plate chain link 1 and the outer wall of the pipe pile.

[0027] like Figure 3As shown, the connecting mechanism 3 includes an end plate 31 with the same specifications as the plate 4, an end pin seat 32 fixedly connected to the back of the end plate 31, and a connecting plate 33. The end plate 31 is installed on the outer end of one of the plates 4 at the end of the arc plate link 1. The end pin seat 32 and the connecting plate 33 are located at both ends of the end plate 31, respectively. One end of the connecting plate 33 is welded to the end of the end plate 31, and the other end extends outward along the radial direction of the arc plate link 1. The end pin seat 32 is coaxially arranged with the pin seat corresponding to the adjacent plate 4—that is, the outermost plate 4 of the arc plate link 1—and connected by a pin installed in the corresponding pin seat. A rib 34 is fixedly connected between the connecting plate 33 and the end plate 31. The rib 34 forms a triangular fixed connection with the connecting plate 33 and the end plate 31, which serves to strengthen the structure and make the connection between the connecting plate 33 and the end plate 31 more secure. Bolt holes are provided on the connecting plate 33, and the fastening bolts 2 are installed in the bolt holes. In use, after two such arc plate chain links 1 are engaged relative to each other, the two symmetrically arranged connecting mechanisms 3 are connected together by the same set of fastening bolts 2.

[0028] like Figure 5 As shown, in one embodiment of this utility model, there are two types of arc plate chain links 1. One type has four pin seats 5 welded to the back of the plate body 4, with two pin seats on each side of the back of the plate body 4. The longitudinal interval between two pin seats 5 is not less than the length of a pin seat 5, and the positions of the two sets of pin seats 5 on the same back of the plate body 4 are symmetrical. The other type of arc plate chain link has six pin seats welded to the back of the plate body 4, with three on each side of the back of the plate body 4. The longitudinal interval between two pin seats is not less than the length of a pin seat, and the positions of the two sets of pin seats 5 on the same back of the plate body 4 are also symmetrical. The positions of the pin seats on these two types of arc plate chain links 1 are staggered, and the two types of arc plate chain links 1 are used alternately during assembly, such as... Figure 5 As shown, after the sides of the two arc plate links 1 are brought close together, the two pin seats on the back of one plate 4 and the three pin seats on the back of the other plate 4 are interlocked and aligned on the same axis. At this point, the two arc plate links 1 can be combined by inserting pins 6 into these five pin seats. The two assembled arc plate links can rotate at a certain angle in both directions around pins 6. The functions of this structure are twofold: first, to make the assembled arc plate basically semi-circular for easy installation; second, to allow the arc plate links to rotate inward around pins 6 at a certain angle when the clamp changes size, so as to match the curvature of the pipe pile and meet the fastening requirements.

[0029] like Figure 6As shown, in another embodiment of this utility model, the pin seats 5 on both sides of the same plate 4 are staggered, with at least two pin seats 5 on each side. In this embodiment, three pin seats 5 are spaced apart on the right side of the same plate 4, and the longitudinal interval between these pin seats is not less than the length of the pin seats. Two pin seats are provided on the left side of the plate 4, and the positions of the two pin seats on the left side correspond to the intervals of the pin seats on the right side. Figure 6 As shown, when the sides of the two arc plate links 1 are brought close together, the two pin seats on the back of the right plate 4 and the three pin seats on the back of the left plate 4 are intersected and aligned and located on the same axis. At this time, the two arc plate links 1 can be combined by inserting pins 6 into these five pin seats.

[0030] In use, the number of arc plate links can be increased or decreased by disassembling and assembling the pin 6, thereby changing the total length and curvature of each arc plate. Two arc plates of the same specification can be fastened together and connected by the connecting mechanism 3 located at both ends of the arc plate to form a PHC pipe pile clamp for different pile diameters.

[0031] While specific embodiments of the present invention have been described in detail above, those skilled in the art should understand that these examples are for illustrative purposes only and not intended to limit the scope of protection of the present invention. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of the present invention. The scope of protection of the present invention is defined by the appended claims.

Claims

1. A PHC pipe pile hoop for different pile diameters, comprising an arc plate and a fastening bolt (2) arranged at the end of the arc plate, characterized in that The arc plate includes an arc plate segment formed by multiple arc plate links (1) connected in series and a connecting mechanism (3) symmetrically arranged at both ends of the arc plate segment; the arc plate link (1) includes an arc-shaped plate body (4), a pin seat (5) fixedly connected to both sides of the back of the plate body (4) in the length direction, and a pin (6) installed in the pin seat (5); the corresponding pin seats of adjacent plates (4) are coaxially arranged and connected together by the pins installed in the corresponding pin seats; the connecting mechanism (3) includes components with the same specifications as the plate body (4). The end plate (31), the end pin seat (32) and the connecting plate (33) are fixedly connected to the back of the end plate (31). The end pin seat (32) and the connecting plate (33) are located at both ends of the end plate (31). The end pin seat (32) is coaxially arranged with the pin seat corresponding to the adjacent plate (4) and connected by the pin installed in the corresponding pin seat. The connecting plate (33) is fixedly connected to the end plate (31) by a rib plate (34). The connecting plate (33) is provided with bolt holes, and the fastening bolt (2) is installed in the bolt holes.

2. The PHC pipe pile clamp for different pile diameters according to claim 1, characterized in that, The back of the plate (4) is longer than the front, and the front of the plate (4) is provided with an anti-slip layer (7).

3. A PHC pipe pile clamp for different pile diameters according to claim 1 or 2, characterized in that, The pin seat (5) includes a sleeve (51) fixedly connected to the back of the plate (4) and an angle plate (52) fixedly connected between the outer wall of the sleeve (51) and the plate (4). The central axis of the sleeve (51) is located on the extension line of the side of the plate (4).

4. The PHC pipe pile clamp for different pile diameters according to claim 1, characterized in that, The pin seats (5) on both sides of the same plate (4) are staggered, and at least two pin seats (5) are provided on each side.

Images