Anti-sinking pile shoe

Abstract

The utility model relates to the technical field of pile shoes, and discloses an anti-sinking pile shoe which comprises a cylindrical pile shoe body, four pile fixing blocks are arranged in the pile shoe body and evenly distributed around the inner wall of the pile shoe body, and a square through hole penetrating through the pile shoe body is formed in the circumferential face of the pile shoe body. Four movable assemblies are arranged at the bottom of the pile shoe body, and each movable assembly is arranged in the two through holes in a penetrating mode and connected with the pile fixing block. Through the arrangement of the movable assembly, the pile shoe can actively pierce into the stratum in the tripping-in process, bottom anchoring of the pile shoe is achieved, and lateral sliding of the pile shoe is prevented; the telescopic structure of the movable assembly can be slowly unfolded until the telescopic structure is completely located in the tripping-in process, the bottom area of the pile shoe is increased, the bearing performance is improved, better stability is achieved, and risks caused by differential settlement are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to pile shoe technical field, more specifically, relate to a kind of sinking-preventing pile shoe. BACKGROUND

[0002] Pile shoe is also called pile cap, which belongs to one of pile tip forms, mainly used for prestressed concrete pipe pile foundation construction, installed at the front end of pipe pile, can bring pile body into stratum, so as to avoid pile head damage and pile body inclination, and can better enter bearing stratum, plays a guiding and plugging role in pile sinking process. The existing pile shoe mainly relies on the pressing force of pile driving equipment to insert into stratum, when encountering stratum with large bearing capacity, pipe pile is difficult to insert, so that the pile shoe is also difficult to completely enter mud, and the bottom area in contact with stratum is small, so that its bearing capacity is insufficient, uneven settlement may occur, and the existing pile shoe is not easy to recycle after use, and is not convenient to install and disassemble. SUMMARY

[0003] Therefore, the utility model aims at overcoming the deficiencies in the prior art, and provides a sinking-preventing pile shoe.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0005] A sinking-preventing pile shoe, comprising a cylindrical pile shoe body, four pile fixing blocks are arranged inside the pile shoe body, the four pile fixing blocks are uniformly distributed around the inner wall of the pile shoe body, a square through hole penetrating through the pile shoe body is formed on the peripheral surface of the pile shoe body, and four movable assemblies are arranged at the bottom of the pile shoe body.

[0006] Further, each pile fixing block comprises a base portion with an inclined surface and a rectangular expansion portion, the overhanging end surface of the expansion portion is parallel to the pile shoe body, and a positioning hole is formed on the expansion portion of each pile fixing block.

[0007] Further, each movable assembly comprises a connecting structure and an extension structure, the connecting structure comprises a connecting bolt and two joint plates, the connecting bolt is arranged in the positioning hole, the two joint plates are respectively arranged on the two sides of the pile fixing block and are parallel to the pile fixing block, a through hole is formed in the upper part of each joint plate, the two ends of the connecting bolt are inserted into the through holes, the extension structure comprises a skirt plate and two baffle plates, the skirt plate is connected to the bottom end of the two joint plates, the two baffle plates are arranged at the edge positions on the two sides of the top of the skirt plate, the width between the two baffle plates gradually increases from the center of the pile shoe body to the outside, and the two baffle plates are movably arranged in the through hole.

[0008] Further, a plurality of dredging holes are formed in the skirt plate, and the dredging holes penetrate through the skirt plate and are located between the two baffle plates.

[0009] Further, two support plates are arranged in the pile shoe body, and the two support plates are fixed to the inner wall of the pile shoe body.

[0010] Further, a containing groove is arranged in the pile shoe body, the bottom end of the containing groove is connected with the support plate, the side wall of the containing groove is fixed to the pile fixing block, and the pile is arranged in the containing groove and fixed to the extended end surface of the expansion part of the pile fixing block.

[0011] The pile shoe can be actively pierced into the stratum during the pile shoe lowering process, the bottom anchoring of the pile shoe is realized, and the lateral sliding of the pile shoe is prevented. BRIEF DESCRIPTION OF DRAWINGS

[0012] Fig. 1 It is a three-dimensional structure schematic view of the utility model.

[0013] Fig. 2 It is a local schematic view of the utility model movable assembly.

[0014] Fig. 3 It is a top view of the utility model.

[0015] Fig. 4 It is a back view schematic view of the utility model.

[0016] In the drawing: 21, pile shoe body; 22, pile fixing block; 23, through hole; 24, movable assembly; 25, base part; 26, expansion part; 27, positioning hole; 28, connecting structure; 29, telescopic structure; 30, connecting bolt; 31, joint plate; 32, shuttle hole; 33, apron; 34, baffle; 35, dredging hole; 36, support plate; 37, containing groove. DETAILED DESCRIPTION

[0017] In order to facilitate understanding of the utility model, the technical scheme in the utility model embodiment will be clearly and completely described below in combination with the drawings in the utility model embodiment.

[0018] The utility model provides a Figs. 1 to 4The anti-sinking pile shoe shown in the figure comprises a cylindrical pile shoe body 21, four pile fixing blocks 22 are arranged inside the pile shoe body 21, the four pile fixing blocks 22 are uniformly distributed around the inner wall of the pile shoe body 21, square through holes 23 are formed on the circumferential surface of the pile shoe body 21 and pass through the pile shoe body 21, two groups of the through holes 23 are arranged equidistantly along the circumferential surface of the pile shoe body 21, and four movable assemblies 24 are arranged at the bottom of the pile shoe body 21, each movable assembly 24 is arranged in two through holes 23 and connected with the pile fixing block 22.

[0019] Each pile fixing block 22 comprises a base part 25 with an inclined surface and a rectangular expansion part 26, the overhanging end surface of the expansion part 26 is parallel to the pile shoe body 21, and a positioning hole 27 is formed on the expansion part 26 of each pile fixing block 22.

[0020] Each movable assembly 24 comprises a connecting structure 28 and an extension structure 29, the connecting structure 28 comprises a connecting bolt 30 and two joint plates 31, the connecting bolt 30 is arranged in the positioning hole 27, the end surface area of the connecting bolt 30 is smaller than the area of the positioning hole 27, the two joint plates 31 are respectively arranged on the two sides of the pile fixing block 22 and are parallel to the pile fixing block 22, a shuttle hole 32 is formed on the upper part of each joint plate 31, and the two ends of the connecting bolt 30 are inserted into the shuttle hole 32, the extension structure 29 comprises a skirt plate 33 and two baffle plates 34, the skirt plate 33 is connected with the bottom end of the two joint plates 31, the two joint plates 31 are fixed on the skirt plate 33, the two baffle plates 34 are arranged at the edge positions on the two sides of the top of the skirt plate 33, the width between the two baffle plates 34 gradually increases from the center of the pile shoe body 21 to the outside, the two baffle plates 34 are movably arranged in the through hole 23, the top end of the two baffle plates 34 forms an inclined surface inclined outward from the center of the pile shoe body 21, so that the resistance of the extension structure 29 when entering the stratum is reduced, and the upper and lower end surfaces of the skirt plate 33 are inclined from the end surface close to the center of the pile shoe body 21 to the end surface away from the pile shoe body 21, so that the end of the skirt plate 33 forms a blade part, and the skirt plate 33 can better penetrate into the stratum.

[0021] A plurality of dredging holes 35 of the same size are formed on the skirt plate 33, the dredging holes 35 pass through the skirt plate 33 and are located between the two baffle plates 34, and the silt can slide off through the dredging holes 35 when the skirt plate 33 is separated from the stratum, so that the volume of the skirt plate 33 is reduced to facilitate pile extraction.

[0022] Two support plates 36 are arranged in the pile shoe body 21, the two support plates 36 are fixed on the inner wall of the pile shoe body 21 and are perpendicular to each other, the position where each support plate 36 is connected with the pile shoe body 21 is located between the two pile fixing blocks 22, and the two support plates 36 are used to fix the pile shoe body 21 and support a containing groove 37.

[0023] The pile shoe body 21 is provided with a containing groove 37, the bottom end of the containing groove 37 is connected with the supporting plate 36, and the side wall of the containing groove 37 is fixed on the pile fixing block 22, the pile is inserted into the containing groove 37 and fixed on the suspended end surface of the expansion part 26 of the pile fixing block 22, the containing groove 37 makes the pile head of the pipe pile not directly contact with the stratum, and the effect of protecting the end surface of the pile head is achieved.

[0024] In summary, before the pipe pile is used for sinking, the pile head of the pipe pile is arranged in the containing groove 37, the outer wall of the pile head is fixed on the pile fixing block 22 of the pile shoe body 21, the connecting bolt 30 is fastened, the connecting bolt 30 cannot move left and right and cannot move out of the positioning hole 27 of the pile fixing block 22 and the through hole 32 of the two joint plates 31, but can still rotate in the circumferential direction of the positioning hole 27, when the pipe pile is used for sinking, the telescopic structure 29 is in the vertical downward state at first, the upper end pipe pile is sunk, the pile shoe body 21 is sunk, the pile fixing block 22 of the pile shoe body 21 is also sunk, the telescopic structure 29 connected with the pile fixing block 22 through the connecting structure 28 moves outward along the through hole 23 of the pile shoe body 21, the apron plate 33 is slowly inserted into the stratum, the contact area between the bottom of the pile shoe and the stratum is gradually increased, and the apron plate 33 is completely unfolded along the pile shoe body 21, when the pipe pile is used for pulling out, the upper end pipe pile is lifted, the pile shoe body 21 is moved upward, the pile fixing block 22 drives the telescopic structure 29 to move along the through hole 23 of the pile shoe body 21 to the center direction of the pile shoe body 21 through the connecting structure 28, and the apron plate 33 is gradually retracted inward and separated from the stratum.

[0025] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the range of the utility model is defined by the appended claims and its equivalents.

Claims

1. An anti-sink pile shoe characterized by: The pile shoe body (21) is internally provided with four pile positioning blocks (22) which are uniformly distributed around the inner wall of the pile shoe body (21), and a square through hole (23) is formed in the circumferential surface of the pile shoe body (21) and penetrates the pile shoe body (21), and four movable assemblies (24) are arranged at the bottom of the pile shoe body (21), each movable assembly (24) is arranged in two through holes (23) and connected with the pile positioning block (22).

2. The anti-sink pile shoe of claim 1, wherein: Each pile positioning block (22) comprises a beveled base part (25) and a rectangular expansion part (26), the suspended end surface of the expansion part (26) is parallel to the pile shoe body (21), and a positioning hole (27) is formed in the expansion part (26) of each pile positioning block (22).

3. The anti-sink pile shoe of claim 2, wherein: Each movable assembly (24) comprises a connecting structure (28) and an extension structure (29), the connecting structure (28) comprises a connecting bolt (30) and two engaging plates (31), the connecting bolt (30) is arranged in the positioning hole (27), the two engaging plates (31) are arranged on both sides of the pile positioning block (22) and are parallel to the pile positioning block (22), the upper part of each engaging plate (31) is provided with a shuttle hole (32), and the two ends of the connecting bolt (30) are inserted into the shuttle hole (32), the extension structure (29) comprises a skirt plate (33) and two baffle plates (34), the skirt plate (33) is connected to the bottom end of the two engaging plates (31), the two baffle plates (34) are arranged at the edge positions on both sides of the top of the skirt plate (33), the width between the two baffle plates (34) gradually increases from the center of the pile shoe body (21) to the outside, and the two baffle plates (34) are movably arranged in the through hole (23).

4. The anti-sink pile shoe of claim 3, wherein: The skirt plate (33) is provided with a plurality of through holes (35) which are the same in size, and the through holes (35) penetrate the skirt plate (33) and are located between the two baffle plates (34).

5. The anti-sink pile shoe of claim 1, wherein: Two support plates (36) are arranged in the pile shoe body (21), and the two support plates (36) are fixed to the inner wall of the pile shoe body (21), and the position where each support plate (36) is connected to the pile shoe body (21) is located between the two pile positioning blocks (22).

6. The anti-sink pile shoe of claim 5, wherein: A containing groove (37) is arranged in the pile shoe body (21), the bottom end of the containing groove (37) is connected to the support plate (36), the side wall of the containing groove (37) is fixed to the pile positioning block (22), and the pile is arranged in the containing groove (37) and fixed to the suspended end surface of the expansion part (26) of the pile positioning block (22).

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