Precast pile with flange connection screw protection structure

Abstract

The utility model relates to the technical field of precast piles, in particular to a precast pile with a flange connecting screw rod protection structure, which comprises a concrete pile body, a flange connecting screw rod and a flange connecting screw rod, the upper connecting flange is connected to the upper end of the concrete pile body; the lower connecting flange is connected to the lower end of the concrete pile body; the reinforcing steel bar structure comprises a plurality of reinforcing steel bars which are distributed in a central symmetry mode. According to the precast pile structure, the steel bars at the upper end extend into the mounting grooves of the upper connecting flange and are not exposed out of the upper end of the upper connecting flange, the steel bars at the lower end extend to the bottom of the lower connecting flange, the bottom of the concrete pile body is provided with the protruding part, and the extending length of the protruding part is larger than or equal to that of the steel bars. And the reinforcing steel bars at the lower end can be protected, so that the probability that the pile body is collided in the transportation, hoisting and construction processes is reduced.

Description

Technical Field

[0001] This utility model relates to the field of precast pile technology, and more specifically to precast piles with flange connection bolt protection structure. Background Technology

[0002] Precast piles refer to piles of various materials and forms, such as wooden piles, concrete square piles, prestressed concrete pipe piles, and steel piles, which are manufactured in factories or on construction sites and then driven, pressed, or vibrated into the soil using pile driving equipment.

[0003] In traditional precast pile construction, the upper and lower piles are typically connected using flanges. This involves pre-embedding exposed bolts at the top of the lower pile section, which are then mechanically fastened to the flange at the bottom of the upper pile section. However, this structure has significant technical drawbacks: because the bolts at the top of the lower pile section need to extend beyond the concrete surface to achieve the connection, they are highly susceptible to mechanical collisions with transport equipment, lifting tools, or other construction machinery during transportation, hoisting, and construction. This can lead to bending deformation or even breakage of the bolts. Such structural damage not only directly affects the construction accuracy of the flange connection but can also cause rework, material waste, and other problems, severely impacting construction efficiency and increasing project costs. Utility Model Content

[0004] To address the technical problems existing in precast piles in the prior art, this utility model proposes a precast pile with a flange connection bolt protection structure, comprising:

[0005] The concrete pile has an internal steel reinforcement structure.

[0006] The upper connecting flange is connected to the upper end of the concrete pile.

[0007] The lower connecting flange is connected to the lower end of the concrete pile.

[0008] The steel reinforcement structure includes multiple steel bars that are centrally symmetrically distributed. The first end of each steel bar is connected to the upper connecting flange, and the second end of each steel bar extends to the lower connecting flange and is configured to have threads on its surface. The lower end of the concrete pile has a protruding portion extending downward from the inside of the lower connecting flange, and the downward extension length of the protruding portion is greater than or equal to the downward extension length of the steel bar.

[0009] Preferably, the outer diameter of the protruding portion is equal to the inner diameter of the upper connecting flange, so that when the two precast piles are joined together, the protruding portion can extend into the inner side of the upper connecting flange.

[0010] Preferably, the protruding portion is configured to have multiple toothed structures on the outer side, forming a groove between two adjacent toothed structures, and the inner side of the lower connecting flange is provided with a toothed plate that engages in the groove.

[0011] Preferably, the toothed plate has a triangular or arc-shaped structure.

[0012] Preferably, the slots correspond to the positions and quantities of the reinforcing bars.

[0013] Preferably, the upper end of the concrete pile is provided with a support structure, and when the upper and lower precast piles are connected, the support structure is in contact with the protruding part or maintains a predetermined distance from the protruding part.

[0014] Preferably, the upper part of the upper connecting flange is provided with a connecting structure, the inner side of the connecting structure is provided with an installation groove, and the reinforcing bar can extend into the installation groove and be fixed by bolts.

[0015] Preferably, the inner side of the reinforcing bar is provided with spiral reinforcement.

[0016] Preferably, a protective cover is detachably connected to the bottom of the lower connecting flange, and the protective cover covers the outside of the reinforcing bar.

[0017] Preferably, the inner side of the protective cover is provided with a locking block that is embedded in the slot, and the end face of the protective cover is provided with an annular groove, into which a plurality of the reinforcing bars extend.

[0018] Compared with the prior art, the advantages of this utility model are:

[0019] The precast pile structure proposed in this utility model has an upper reinforcing bar that extends into the mounting groove of the upper connecting flange and is not exposed above the upper connecting flange. The lower reinforcing bar extends to the bottom of the lower connecting flange. However, the bottom of the concrete pile body is provided with a protruding part whose extension length is greater than or equal to the extension length of the reinforcing bar. This can protect the lower reinforcing bar and reduce the probability of the pile body being hit by collisions during transportation, hoisting and construction. Attached Figure Description

[0020] The accompanying drawings are not intended to be drawn to scale. In the drawings, each identical or nearly identical component shown in the various figures may be denoted by the same reference numeral. For clarity, not every component is labeled in each figure. Embodiments of various aspects of the present invention will now be described by way of example and with reference to the accompanying drawings, wherein:

[0021] Figure 1 This is a schematic diagram of the structure of the precast pile with flange connection screw protection structure shown in this utility model;

[0022] Figure 2This is a schematic diagram showing the interconnection between the upper connecting flange and the lower connecting flange as illustrated in this utility model;

[0023] Figure 3 This is a schematic diagram of the steel reinforcement structure shown in this utility model connected to the upper and lower connecting flanges;

[0024] Figure 4 This is a schematic diagram of the structure of the lower connecting flange shown in this utility model;

[0025] Figure 5 This is a schematic diagram of the structure of the protruding part shown in this utility model;

[0026] Figure 6 This is a schematic diagram of the structure of the protective cover shown in this utility model. Detailed Implementation

[0027] To better understand the technical content of this utility model, specific embodiments are provided below in conjunction with the accompanying drawings.

[0028] Combination Figure 1 As shown, this utility model proposes a precast pile with a flange connection bolt protection structure, including a concrete pile body 10, an upper connecting flange 20 and a lower connecting flange 30.

[0029] The concrete pile 10 has a steel reinforcement structure embedded inside. The steel reinforcement structure includes multiple steel bars 41 that are centrally symmetrically distributed.

[0030] In an optional embodiment, in order to increase the strength of the concrete pile 10, a spiral reinforcement 42 is also provided on the inner side of the reinforcing bar 41.

[0031] Furthermore, the upper connecting flange 20 is connected to the upper end of the concrete pile 10, and the lower connecting flange 30 is connected to the lower end of the concrete pile 10.

[0032] The first end of the reinforcing bar 41 is connected to the upper connecting flange 20 and is configured to have a threaded surface, and the second end of the reinforcing bar 42 extends below the lower connecting flange 30 and is configured to have a threaded surface.

[0033] like Figure 2 As shown, the upper part of the upper connecting flange 20 is provided with a connecting structure 21, and the inner side of the connecting structure 21 is provided with an installation groove 22. The reinforcing bar 41 can extend into the installation groove 22 and be fixed by bolts. The upper end of the concrete pile 10 is provided with a support structure 11.

[0034] In an optional embodiment, the outer diameter of the protrusion 12 is equal to the inner diameter of the upper connecting flange 20, and when the upper and lower precast piles are connected, the protrusion 12 can extend into the inner side of the upper connecting flange 20.

[0035] Specifically, when the upper and lower precast piles are connected, the support structure 11 is in contact with the protruding part 12 or maintains a predetermined distance from the protruding part 12. At this time, the lower connecting flange 30 and the upper connecting flange 20 are completely in contact, the lower end of the reinforcing bar 42 extends into the mounting groove 22, and the upper end of the reinforcing bar 42 extends into the mounting groove 22. The upper and lower ends of the reinforcing bar 42 can be fixed relative to the connecting structure 21 of the upper connecting flange 20 by nuts.

[0036] Furthermore, in combination Figure 4 and Figure 5 As shown, the lower end of the concrete pile 10 has a protruding portion 12 extending downward from the inside of the lower connecting flange 30, and the downward extension length of the protruding portion 12 is greater than or equal to the downward extension length of the reinforcing bar 42.

[0037] Thus, the protrusion 12 can protect the lower end of the reinforcing bar 42. Because the protrusion 12 is long, when the lower end of the concrete pile 10 is hit during transportation or other processes, the protrusion 12 will contact the impacting object first, thus preventing the lower end of the reinforcing bar 42 from expanding and bending.

[0038] Furthermore, the protruding portion 12 is configured to have multiple toothed structures 121 on the outer side, forming a groove between two adjacent toothed structures 121, and the inner side of the lower connecting flange 30 is provided with a toothed plate 31 that is inserted into the groove.

[0039] Preferably, the slots correspond to the positions and quantities of the reinforcing bars 41.

[0040] Thus, the position of the slot corresponds to the position of the reinforcing bar 41, and the slot is located on the outer periphery of the reinforcing bar. The protruding part 12 can protect the reinforcing bar 41.

[0041] In an optional embodiment, the toothed plate 31 has a triangular or arc-shaped structure.

[0042] Furthermore, in combination Figure 6 As shown, a protective cover 50 is detachably connected to the bottom of the lower connecting flange 30, and the protective cover 50 covers the outside of the reinforcing bar 41.

[0043] In this way, by covering the outside of the reinforcing bar 41 with the protective cover 50, the probability of the reinforcing bar 41 being hit can be reduced.

[0044] The protective cover 50 can be made of plastic / nylon composite material.

[0045] Specifically, the inner side of the protective cover 50 is provided with a card block 51 embedded in the card slot, and the end face of the protective cover 50 is provided with an annular groove 52, with multiple steel bars 41 extending into the annular groove 52.

[0046] In this way, the locking block 51 on the inner side of the protective cover 50 can be inserted into the slot. The width of the locking block 51 is set to be slightly larger than the width of the slot to ensure that the protective cover 50 has a relatively stable state after being inserted into the slot.

[0047] In conjunction with the above embodiments, the precast pile structure proposed by this utility model has an upper reinforcing bar that extends into the mounting groove of the upper connecting flange and is not exposed above the upper connecting flange. The lower reinforcing bar extends to the bottom of the lower connecting flange, but the bottom of the concrete pile body is provided with a protruding part whose extension length is greater than or equal to the extension length of the reinforcing bar. This can protect the lower reinforcing bar and reduce the probability of the pile body being hit during transportation, hoisting and construction.

[0048] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Those skilled in the art to which this invention pertains can make various modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of this invention shall be determined by the claims.

Claims

1. A precast pile with a flange connection bolt protection structure, characterized in that, include: The concrete pile (10) has a steel reinforcement structure embedded inside; The upper connecting flange (20) is connected to the upper end of the concrete pile (10); The lower connecting flange (30) is connected to the lower end of the concrete pile (10); The steel reinforcement structure includes multiple steel bars (41) that are centrally symmetrically distributed. The first end of each steel bar (41) is connected to the upper connecting flange (20), and the second end of each steel bar (41) extends to the lower connecting flange (30) and is configured to have threads on its surface. The lower end of the concrete pile (10) has a protruding portion (12) extending downward from the inside of the lower connecting flange (30). The downward extension length of the protruding portion (12) is greater than or equal to the downward extension length of the steel bar (41).

2. The precast pile with flange connection bolt protection structure according to claim 1, characterized in that, The outer diameter of the protruding part (12) is equal to the inner diameter of the upper connecting flange (20). When the two precast piles are connected, the protruding part (12) can extend into the inner side of the upper connecting flange (20).

3. The precast pile with flange connection bolt protection structure according to claim 1, characterized in that, The protruding portion (12) is configured to have multiple toothed structures (121) on the outside, forming a groove between two adjacent toothed structures (121), and the inner side of the lower connecting flange (30) is provided with a toothed plate (31) that is inserted into the groove.

4. The precast pile with flange connection bolt protection structure according to claim 3, characterized in that, The toothed plate (31) has a triangular or circular arc structure.

5. The precast pile with flange connection bolt protection structure according to claim 3, characterized in that, The slots correspond to the positions and quantities of the reinforcing bars (41).

6. The precast pile with flange connection bolt protection structure according to claim 1, characterized in that, The upper end of the concrete pile (10) is provided with a support structure (11). When the two precast piles are connected, the support structure (11) fits against the protruding part (12) or maintains a predetermined distance from the protruding part (12).

7. The precast pile with flange connection bolt protection structure according to claim 1, characterized in that, The upper part of the upper connecting flange (20) is provided with a connecting structure (21), and the inner side of the connecting structure (21) is provided with an installation groove (22). The reinforcing bar (41) can extend into the installation groove (22) and be fixed by bolts.

8. The precast pile with flange connection bolt protection structure according to claim 1, characterized in that, The inner side of the steel bar (41) is provided with spiral reinforcement (42).

9. The precast pile with flange connection bolt protection structure according to claim 3, characterized in that, The bottom of the lower connecting flange (30) is detachably connected to a protective cover (50), which covers the outside of the reinforcing bar (41).

10. The precast pile with flange connection bolt protection structure according to claim 9, characterized in that, The inner side of the protective cover (50) is provided with a card block (51) embedded in the card slot, and the end face of the protective cover (50) is provided with an annular groove (52), and a plurality of the steel bars (41) extend into the annular groove (52).

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