Steel pipe pile cap bottom lifting device and mounting method thereof

Abstract

The invention discloses a steel pipe pile cap bottom hoisting device and a mounting method thereof.The steel pipe pile cap bottom hoisting device comprises double-spliced channel steel, embedded battens and carrying pole beams, adjusting assemblies are jointly arranged in the two carrying pole beams, push-pull assemblies are arranged on the surfaces of the adjusting assemblies, and the two double-spliced channel steel is detachably connected to the two ends of the push-pull assemblies correspondingly; during use, the two shoulder pole beams are placed at the upper ends of the two steel pipe piles, the double-spliced channel steel provided with the embedded battens is installed on the surface of the push-pull assembly, and when the adjusting assembly is rotated to adjust the position of the auxiliary plate, the double-spliced channel steel is installed on the surface of the push-pull assembly. The double-spliced channel steel can be synchronously driven to be fixed to the surface of the steel pipe pile, then bolts penetrate through the carrying pole beam and the double-spliced channel steel to be fixed to the ground (a nut used for bolt connection is fixed to the ground in advance), and the effect that the efficiency of fixing the steel pipe pile and placing the pile cap can be effectively improved is achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of building construction, and in particular relates to a steel pipe pile cap bottom hanging device and an installation method thereof. Background Art

[0002] The steel pipe pile cap is a key part of the steel pipe pile foundation construction. It connects the superstructure and the steel pipe pile, and plays the role of transferring load and dispersing stress. Its construction quality affects the structural stability. Traditional methods have shortcomings, and new construction methods are constantly emerging to ensure the quality and safety of the steel pipe pile anti-corrosion layer. In construction, especially in the construction of large-scale infrastructure such as bridges, highways and railways, the construction of steel pipe pile caps is one of the important links.

[0003] The problems with the existing technology are: the traditional direct pouring and simple support and fixing construction method (there is no special bottom hanging device, only a simple template is installed on the top of the steel pipe pile, and the steel bars are fixed by simple connectors or temporary welding. During pouring, the steel pipe pile is easily displaced due to the impact force and vibration force of the concrete, and the position accuracy, shape and size of the pile cap are difficult to control). There are problems such as the difficulty in controlling the quality of the pile cap concrete entity and the easy damage of the steel pipe pile anti-corrosion layer. Therefore, we propose a steel pipe pile cap bottom hanging device and its installation method. Summary of the invention

[0004] The object of the present invention is to provide a steel pipe pile cap bottom hanging device and an installation method thereof, so as to solve the problems raised in the above background technology.

[0005] The present invention is implemented as follows: a steel pipe pile cap bottom hanging device includes double-jointed channel steels, embedded wooden squares and a shoulder beam, two groups of the shoulder beams are commonly provided with an adjustment component inside, a push-pull component is provided on the surface of the adjustment component, the two groups of the double-jointed channel steels are respectively detachably connected to the two ends of the push-pull component, four groups of the embedded wooden squares are respectively detachably connected to the inside of the two groups of double-jointed channel steels, bolts are provided at both ends of the two groups of the double-jointed channel steels, the adjustment component is used to assist in the precise position of the pile cap, and the push-pull component is used to position the steel pipe pile.

[0006] As a preferred embodiment of the present invention, the adjustment assembly includes an auxiliary plate, a first tooth plate and a turning handle, the two groups of the auxiliary plates are respectively movably connected to the two ends of the inside of the two groups of shoulder beams, the two groups of the first tooth plates are respectively fixedly connected to one side of the surface of the two groups of auxiliary plates, and a positioning plate is fixedly connected to one side of the inner wall of the shoulder beam.

[0007] As a preferred embodiment of the present invention, four groups of positioning holes are opened on the surface of the positioning plate, and positioning blocks are detachably connected to the inside of the four groups of positioning holes. A tension spring is fixedly connected to one side of the inner wall of the shoulder pole beam, and one end of the tension spring is movably connected to a rotating shaft.

[0008] As a preferred embodiment of the present invention, a fixing rod is fixedly connected to one side of the surface of the positioning block, a first gear is fixedly connected to the surface of the fixing rod, the first gear is meshed with the first tooth plate, and a second gear is fixedly connected to the surface of the fixing rod.

[0009] As a preferred embodiment of the present invention, a clamping plate is fixedly connected to the surface of the fixing rod, and a rotating handle is fixedly connected to the other end of the fixing rod.

[0010] As a preferred embodiment of the present invention, the push-pull assembly includes a limit shell, a second tooth plate and a connecting plate. The four groups of limit shells are respectively fixedly connected to both sides of the middle part of the lower surface of the two groups of shoulder beams. The corresponding two groups of limit shells are movably connected with the second tooth plate inside, and the second tooth plate is meshingly connected with the second gear.

[0011] As a preferred embodiment of the present invention, the two groups of connecting plates are respectively fixedly connected to both sides of the two groups of double-jointed channel steels, and a movable rod is movably connected inside one end of the two groups of second tooth plates.

[0012] As a preferred embodiment of the present invention, a spring is commonly and fixedly connected between the two groups of movable rods and the second tooth plate, and three groups of spring sheets are fixedly connected to one end of the two groups of movable rods.

[0013] A method for installing a steel pipe pile cap bottom hanging device, applied to the above-mentioned steel pipe pile cap bottom hanging device, comprises the following steps: S1, according to the use method, can be divided into precise pile cap position and steel pipe pile fixation; S11, when the pile cap is in the precise position, the handle is turned, and the handle drives the first gear to rotate. When the first gear rotates, it drives the two sets of first tooth plates and the auxiliary plates to move in the opposite or opposite directions. When the position is appropriate, the pile cap is accurately placed; S12, when fixing the steel pipe pile, the movable rod is pressed to make the spring piece pass through the connecting plate, and in the process of rotating the handle, the second gear drives the two sets of second tooth plates to move, thereby driving the double-jointed channel steel with embedded wooden squares to be clamped on both sides of the steel pipe pile; S2, complete the operation steps corresponding to each usage method; S21, when the positioning block is inserted into the positioning hole, the fixing rod can be prevented from rotating at will. Therefore, when it is needed, the fixing rod can be pulled down to separate the positioning block from the positioning hole, and the first gear can be meshed with the first tooth plate. Then the handle is turned, so that the two sets of first tooth plates drive the two sets of auxiliary plates to move in opposite or reverse directions. When the auxiliary plates are adjusted to a suitable position, the pile cap can be accurately placed because the pile cap can be placed close to the auxiliary plates. S22, when in use, pressing the movable rod can make the movable rod equipped with spring sheets pass through the connecting plate, thereby fixing the double-jointed channel steel. When the fixing rod is pulled down to make the first gear engage with the second tooth plate, the second gear will also be driven to engage with the second tooth plate. Because when the positioning block is positioned inside the positioning hole, the clamping plate is in a state of limiting the second tooth plate to prevent the second tooth plate from moving. Therefore, when the second gear rotates, it will drive the two sets of second tooth plates and the double-jointed channel steel equipped with embedded wooden squares to be fixed on the surface of the steel pipe pile. The embedded wooden squares are used to protect the anti-corrosion layer of the steel pipe pile, and the movement of the auxiliary plate and the fixing of the double-jointed channel steel are carried out synchronously, so that the operation is completed at the same time.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. When in use, the present invention places two groups of shoulder pole beams on the upper ends of two groups of steel pipe piles, and installs double-jointed channel steels with embedded wooden squares on the surface of the push-pull component. When the adjusting component is rotated for adjustment, the double-jointed channel steels are synchronously driven to be fixed on the surface of the steel pipe piles, and then bolts are passed through the shoulder pole beams and the double-jointed channel steels to fix them on the ground (a nut for bolt connection is fixed on the ground in advance), thereby effectively improving the efficiency of fixing the steel pipe piles and placing the pile caps.

[0015] 2. The present invention can prevent the fixing rod from rotating at will after the positioning block is inserted into the positioning hole. Therefore, when it is needed, the fixing rod can be pulled down to separate the positioning block from the positioning hole, and the first gear can be meshed with the first tooth plate. Then the handle can be rotated, so that the two groups of first tooth plates can drive the two groups of auxiliary plates to move in opposite or reverse directions. When the auxiliary plates are adjusted to the appropriate position, the pile cap can be accurately placed because the pile cap can be placed close to the auxiliary plates, thereby achieving the effect of facilitating the accurate placement of the auxiliary pile cap on the surface of the bottom hanging device.

[0016] 3. When in use, the present invention presses the movable rod to make the movable rod equipped with spring sheets pass through the connecting plate, so that the movable rod is connected to the double-jointed channel steel. When the fixed rod is pulled down to make the first gear mesh with the second tooth plate, the second gear is also driven to mesh with the second tooth plate. Because when the positioning block is positioned inside the positioning hole, the clamping plate is in a state of limiting the second tooth plate to prevent the second tooth plate from moving. Therefore, when the second gear rotates, it will drive the two groups of second tooth plates and the double-jointed channel steel equipped with embedded wooden squares to be fixed on the surface of the steel pipe pile. The embedded wooden square is used to protect the anti-corrosion layer of the steel pipe pile, and the movement of the auxiliary plate and the fixing of the double-jointed channel steel are carried out synchronously, so that the operation is completed at the same time, achieving the effect of facilitating and quickly completing the fixing of the steel pipe pile by the double-jointed channel steel. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure provided by an embodiment of the present invention; Figure 2It is a schematic diagram of a local structure provided by an embodiment of the present invention; Figure 3 is a schematic diagram of the spring structure provided by an embodiment of the present invention; Figure 4 is a schematic diagram of the structure of a turning handle provided by an embodiment of the present invention; Figure 5 It is a schematic diagram of a double-jointed channel steel structure provided by an embodiment of the present invention; Figure 6 is a schematic diagram of the shoulder pole beam structure provided by an embodiment of the present invention; Figure 7 It is a schematic diagram of the structure of the second tooth plate provided in an embodiment of the present invention.

[0018] In the figure: 1. Double-piece channel steel; 2. Push-pull assembly; 201. Second tooth plate; 202. Connecting plate; 203. Shrapnel; 204. Movable rod; 205. Spring; 206. Limiting shell; 3. Adjusting assembly; 301. First tooth plate; 302. Auxiliary plate; 303. Positioning plate; 304. Positioning hole; 305. Positioning block; 306. Tension spring; 307. Rotating shaft; 308. First gear; 309. Second gear; 310. Clamping plate; 311. Fixing rod; 312. Turning handle; 4. Bolt; 5. Embedded wooden square; 6. Shoulder pole beam. DETAILED DESCRIPTION

[0019] In order to further understand the content, features and effects of the present invention, the following embodiments are given as examples and described in detail with reference to the accompanying drawings.

[0020] The structure of the present invention is described in detail below in conjunction with the accompanying drawings. Example

[0021] like Figures 1 to 7As shown, a steel pipe pile cap bottom hanging device provided by an embodiment of the present invention comprises a double-jointed channel steel 1, an embedded wooden square 5 and a shoulder beam 6, an adjusting component 3 is commonly arranged inside the two groups of shoulder beams 6, a push-pull component 2 is arranged on the surface of the adjusting component 3, the two groups of double-jointed channel steels 1 are detachably connected to the two ends of the push-pull component 2, the four groups of embedded wooden squares 5 are detachably connected to the inside of the two groups of double-jointed channel steels 1, bolts 4 are arranged at both ends of the two groups of double-jointed channel steels 1, the adjusting component 3 is used to assist in the accurate position of the pile cap, and the push-pull component 2 is used to adjust the steel pipe pile. The adjustment component 3 includes an auxiliary plate 302, a first tooth plate 301 and a handle 312. The two sets of auxiliary plates 302 are movably connected to the two ends of the inside of the two sets of shoulder beams 6. The two sets of first tooth plates 301 are fixedly connected to one side of the surface of the two sets of auxiliary plates 302. A positioning plate 303 is fixedly connected to one side of the inner wall of the shoulder beam 6; four sets of positioning holes 304 are opened on the surface of the positioning plate 303, and the four sets of positioning holes 304 are all detachably connected to the positioning blocks 305. A tension spring 306 is fixedly connected to one side of the inner wall of the shoulder beam 6. One end of the positioning block 305 is movably connected to a rotating shaft 307; one side of the surface of the positioning block 305 is fixedly connected to a fixing rod 311, the surface of the fixing rod 311 is fixedly connected to a first gear 308, the first gear 308 is meshed with the first tooth plate 301, and the surface of the fixing rod 311 is fixedly connected to a second gear 309; the surface of the fixing rod 311 is fixedly connected to a clamping plate 310, and the other end of the fixing rod 311 is fixedly connected to a rotating handle 312; the push-pull assembly 2 includes a limit housing 206, a second tooth plate 201 and a connecting plate 202, and four sets of limit housings 20 6 are respectively fixedly connected to the two groups of shoulder beams 6 on both sides of the middle of the lower surface, and the corresponding two groups of limit shells 206 are movably connected with the second tooth plate 201 inside, and the second tooth plate 201 is meshed with the second gear 309; the two groups of connecting plates 202 are respectively fixedly connected to the two groups of double-jointed channel steels 1 on both sides, and the two groups of second tooth plates 201 are movably connected with movable rods 204 at one end; the two groups of movable rods 204 and the second tooth plates 201 are commonly and fixedly connected with springs 205, and the two groups of movable rods 204 are fixedly connected with three groups of spring pieces 203 at one end.

[0022] The above scheme is adopted: through the design of double-jointed channel steel 1, push-pull assembly 2, adjustment assembly 3, bolt 4, embedded wooden square 5, shoulder pole beam 6, first tooth plate 301, auxiliary plate 302, positioning plate 303, positioning hole 304, positioning block 305, tension spring 306, rotating shaft 307, first gear 308, second gear 309, clamping plate 310, fixing rod 311, rotating handle 312, second tooth plate 201, connecting plate 202, spring piece 203, movable rod 204, spring 205 and limiting shell 206, when in use, two groups of shoulder pole beams 6 are placed on the upper ends of two groups of steel pipe piles, and the The double-jointed channel steel 1 with the embedded wooden square 5 is installed on the surface of the push-pull component 2. When the adjusting component 3 is rotated for adjustment, the double-jointed channel steel 1 is synchronously driven to be fixed on the surface of the steel pipe pile. Then, the bolt 4 is passed through the shoulder beam 6 and the double-jointed channel steel 1 to be fixed on the ground (a nut for the connection of the bolt 4 is fixed on the ground in advance). When the positioning block 305 is inserted into the positioning hole 304, the fixing rod 311 can be prevented from rotating at will. Therefore, when it is needed, the fixing rod 311 can be pulled down to separate the positioning block 305 from the positioning hole 304, and the first gear 308 and the first tooth plate 308 can be connected. 1 meshes, and then rotates the handle 312, so that the two sets of first tooth plates 301 drive the two sets of auxiliary plates 302 to move in opposite or reverse directions. When the auxiliary plates 302 are adjusted to a suitable position, the pile cap can be accurately placed, because the pile cap can be placed close to the auxiliary plates 302. Pressing the movable rod 204 can make the movable rod 204 equipped with the spring sheet 203 pass through the connecting plate 202, so that the movable rod 204 connects the double-jointed channel steel 1. When the fixing rod 311 is pulled down to mesh the first gear 308 with the second tooth plate 201, the second gear 309 will also be driven to mesh with the second tooth plate 201. The plate 201 is engaged, because when the positioning block 305 is positioned inside the positioning hole 304, the clamping plate 310 is in a state of limiting the second tooth plate 201, preventing the second tooth plate 201 from moving. Therefore, when the second gear 309 rotates, it will drive the two sets of second tooth plates 201 and the double-piece channel steel 1 with embedded wooden squares 5 to move and be fixed on the surface of the steel pipe pile. The embedded wooden squares 5 are used to protect the anti-corrosion layer of the steel pipe pile, and the movement of the auxiliary plate 302 and the fixation of the double-piece channel steel 1 are carried out synchronously, so that the operations are completed at the same time, which can effectively improve the efficiency of fixing the steel pipe pile and placing the pile cap.

[0023] like Figure 1-7 As shown, a method for installing a steel pipe pile cap bottom hanging device adopts the above-mentioned steel pipe pile cap bottom hanging device, comprising the following steps: S1, according to the use method, can be divided into precise pile cap position and steel pipe pile fixation; S11, when the pile cap is in the precise position, the handle 312 is rotated, and the handle 312 drives the first gear 308 to rotate. When the first gear 308 rotates, it drives the two sets of first tooth plates 301 and the auxiliary plate 302 to move in the opposite direction or opposite directions. When the position is appropriate, the pile cap is accurately placed; S12, when fixing the steel pipe pile, the movable rod 204 is pressed to make the spring piece 203 pass through the connecting plate 202, and in the process of rotating the handle 312, the second gear 309 drives the two sets of second tooth plates 201 to move, thereby driving the double-jointed channel steel 1 with embedded wooden squares 5 to be clamped on both sides of the steel pipe pile; S2, complete the operation steps corresponding to each usage method; S21, when the positioning block 305 is inserted into the positioning hole 304, the fixing rod 311 can be prevented from rotating at will. Therefore, when it is needed, the fixing rod 311 can be pulled down to separate the positioning block 305 from the positioning hole 304, and the first gear 308 can be meshed with the first tooth plate 301, and then the handle 312 can be turned, so that the two groups of first tooth plates 301 can drive the two groups of auxiliary plates 302 to move in opposite or reverse directions. When the auxiliary plates 302 are adjusted to a suitable position, the pile cap can be accurately placed because the pile cap can be placed close to the auxiliary plates 302; S22, when in use, pressing the movable rod 204 can make the movable rod 204 equipped with the spring sheet 203 pass through the connecting plate 202, so that the movable rod 204 is connected to the double-jointed channel steel 1, and when the fixed rod 311 is pulled down to make the first gear 308 engage with the second tooth plate 201, it will also drive the second gear 309 to engage with the second tooth plate 201. Because when the positioning block 305 is positioned inside the positioning hole 304, the clamping plate 310 is in a limited state of the second tooth plate 201 to prevent the second tooth plate 201 from moving. Therefore, when the second gear 309 rotates, it will drive the two groups of second tooth plates 201 and the double-jointed channel steel 1 equipped with embedded wooden squares 5 to be fixed on the surface of the steel pipe pile. The embedded wooden squares 5 are used to protect the anti-corrosion layer of the steel pipe pile, and the movement of the auxiliary plate 302 and the fixing of the double-jointed channel steel 1 are carried out synchronously, so that the operation is completed at the same time.

[0024] Working principle of the present invention: When in use, after the positioning block 305 is inserted into the positioning hole 304, the fixing rod 311 can be prevented from rotating at will. Therefore, when it is needed, the fixing rod 311 can be pulled down to separate the positioning block 305 from the positioning hole 304, and the first gear 308 can be meshed with the first tooth plate 301, and then the handle 312 can be turned, so that the two groups of first tooth plates 301 can drive the two groups of auxiliary plates 302 to move in opposite or reverse directions. When the auxiliary plate 302 is adjusted to a suitable position, the pile cap can be accurately placed, because the pile cap can be placed close to the auxiliary plate 302. When in use, pressing the movable rod 204 can make the movable rod 204 equipped with the spring sheet 203 pass through the connecting plate 2 02, so that the movable rod 204 connects the double-jointed channel steel 1. When the fixed rod 311 is pulled down to make the first gear 308 engage with the second tooth plate 201, the second gear 309 will also be driven to engage with the second tooth plate 201. Because when the positioning block 305 is positioned inside the positioning hole 304, the clamping plate 310 is in a limited state of the second tooth plate 201 to prevent the second tooth plate 201 from moving. Therefore, when the second gear 309 rotates, it will drive the two groups of second tooth plates 201 and the double-jointed channel steel 1 equipped with embedded wooden squares 5 to be fixed on the surface of the steel pipe pile. The embedded wooden squares 5 are used to protect the anti-corrosion layer of the steel pipe pile, and the movement of the auxiliary plate 302 and the fixing of the double-jointed channel steel 1 are carried out synchronously, so that the operation is completed at the same time.

[0025] To sum up: this steel pipe pile cap hanging device, through the structure of push-pull assembly 2, second tooth plate 201, connecting plate 202, spring 203, movable rod 204, spring 205 and limiting shell 206, solves the problems of traditional direct casting and simple support and fixing construction methods such as the difficulty in controlling the quality of pile cap concrete entity and the easy damage of steel pipe pile anti-corrosion layer.

[0026] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A steel pipe pile cap bottom hanging device, comprising a double-jointed channel steel (1), an embedded wooden square (5) and a shoulder beam (6), characterized in that: The two groups of shoulder beams (6) are both provided with an adjustment component (3) inside, and a push-pull component (2) is provided on the surface of the adjustment component (3). The two groups of double-jointed channel steels (1) are respectively detachably connected to the two ends of the push-pull component (2), and the four groups of embedded wooden squares (5) are respectively detachably connected to the inside of the two groups of double-jointed channel steels (1). Bolts (4) are provided at both ends of the two groups of double-jointed channel steels (1). The adjustment component (3) is used to assist in accurately determining the position of the pile cap, and the push-pull component (2) is used to position the steel pipe pile.

2. A steel pipe pile cap bottom hanging device as claimed in claim 1, characterized in that: The adjustment assembly (3) comprises an auxiliary plate (302), a first tooth plate (301) and a rotating handle (312); the two sets of the auxiliary plates (302) are respectively movably connected to the two ends of the inside of the two sets of shoulder beams (6); the two sets of the first tooth plates (301) are respectively fixedly connected to one side of the surface of the two sets of auxiliary plates (302); and a positioning plate (303) is fixedly connected to one side of the inner wall of the shoulder beam (6).

3. A steel pipe pile cap bottom hanging device as claimed in claim 2, characterized in that: The surface of the positioning plate (303) is provided with four groups of positioning holes (304), and the insides of the four groups of positioning holes (304) are all detachably connected to positioning blocks (305). One side of the inner wall of the shoulder pole beam (6) is fixedly connected to a tension spring (306), and one end of the tension spring (306) is movably connected to a rotating shaft (307).

4. A steel pipe pile cap bottom hanging device as claimed in claim 3, characterized in that: A fixing rod (311) is fixedly connected to one side of the surface of the positioning block (305), a first gear (308) is fixedly connected to the surface of the fixing rod (311), the first gear (308) is meshingly connected to the first toothed plate (301), and a second gear (309) is fixedly connected to the surface of the fixing rod (311).

5. A steel pipe pile cap bottom hanging device as claimed in claim 4, characterized in that: A clamping plate (310) is fixedly connected to the surface of the fixing rod (311), and a rotating handle (312) is fixedly connected to the other end of the fixing rod (311).

6. A steel pipe pile cap bottom hanging device as claimed in claim 1, characterized in that: The push-pull assembly (2) comprises a limit shell (206), a second tooth plate (201) and a connecting plate (202); four groups of limit shells (206) are respectively fixedly connected to two sides of the middle of the lower surface of the two groups of shoulder beams (6); the corresponding two groups of limit shells (206) are movably connected with the second tooth plate (201) inside, and the second tooth plate (201) is meshedly connected with the second gear (309).

7. A steel pipe pile cap bottom hanging device as claimed in claim 6, characterized in that: The two groups of connecting plates (202) are respectively fixedly connected to the two sides of the two groups of double-jointed channel steels (1), and one end of the two groups of the second tooth plates (201) is movably connected to a movable rod (204).

8. A steel pipe pile cap bottom hanging device as claimed in claim 7, characterized in that: A spring (205) is fixedly connected between the two groups of movable rods (204) and the second tooth plate (201), and one end of the two groups of movable rods (204) is fixedly connected to three groups of spring sheets (203).

9. A method for installing a steel pipe pile cap bottom hanging device, applied to a steel pipe pile cap bottom hanging device according to any one of claims 1 to 8, characterized in that: The steps include: S1, according to the use method, can be divided into precise pile cap position and steel pipe pile fixation; S11, when the pile cap is in a precise position, the handle (312) is rotated, and the handle (312) drives the first gear (308) to rotate. When the first gear (308) rotates, it drives the two sets of first tooth plates (301) and the auxiliary plate (302) to move in opposite directions or opposite directions. When the position is appropriate, the pile cap is accurately placed; S12, when fixing the steel pipe pile, the movable rod (204) is pressed to allow the spring sheet (203) to pass through the connecting plate (202), and in the process of rotating the handle (312), the second gear (309) drives the two sets of second tooth plates (201) to move, thereby driving the double-jointed channel steel (1) with embedded wooden squares (5) to be clamped on both sides of the steel pipe pile; S2, complete the operation steps corresponding to each usage method; S21, when the positioning block (305) is inserted into the positioning hole (304), the fixing rod (311) can be prevented from rotating at will. Therefore, when it is needed, the fixing rod (311) can be pulled down to separate the positioning block (305) from the positioning hole (304), and the first gear (308) can be meshed with the first tooth plate (301). Then, the handle (312) is rotated, so that the two groups of first tooth plates (301) drive the two groups of auxiliary plates (302) to move in opposite directions or reverse directions. When the auxiliary plates (302) are adjusted to a suitable position, the pile cap can be accurately placed because the pile cap can be placed close to the auxiliary plates (302); S22, when in use, pressing the movable rod (204) can make the movable rod (204) equipped with the spring sheet (203) pass through the connecting plate (202), thereby fixing the double-jointed channel steel (1), and when the fixing rod (311) is pulled down to make the first gear (308) mesh with the second tooth plate (201), the second gear (309) will also be driven to mesh with the second tooth plate (201), because when the positioning block (305) is positioned inside the positioning hole (304), the card The plate (310) is in a state where the second tooth plate (201) is limited, preventing the second tooth plate (201) from moving. Therefore, when the second gear (309) rotates, it drives the two sets of second tooth plates (201) and the double-jointed channel steel (1) equipped with embedded wooden squares (5) to be fixed on the surface of the steel pipe pile. The embedded wooden squares (5) are used to protect the anti-corrosion layer of the steel pipe pile. The movement of the auxiliary plate (302) and the fixing of the double-jointed channel steel (1) are performed synchronously, so that the operation is completed simultaneously.

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