Connecting structure for precast piles

Abstract

The connecting structure comprises an upper precast pile, a lower precast pile and a connecting assembly, the upper precast pile is arranged at the top end of the lower precast pile, the connecting assembly comprises end plates, connecting bolts and connecting nuts, and the bottom end of the upper precast pile and the top end of the lower precast pile are each connected with one end plate; the upper precast pile and the lower precast pile are both square piles, a plurality of mounting grooves are formed in the edge of the bottom end of the upper precast pile and the edge of the top end of the lower precast pile, one connecting bolt is arranged in each mounting groove of the upper precast pile, and one connecting nut is arranged in each mounting groove of the lower precast pile. The connecting bolts jointly penetrate through the two end plates and are in threaded connection with the corresponding connecting nuts. The method has the effects that the connection stability between the precast piles is improved, and the difficulty in the piling process is reduced.

Description

Technical Field

[0001] This application relates to the technical field of building construction, and in particular to a connection structure for precast piles. Background Technology

[0002] Precast reinforced concrete piles are manufactured in a precast component processing plant, cured to the design strength, transported to the construction site, driven into the soil using a pile driver, and then a foundation beam (slab) is poured on top of the pile. They typically have 4 to 8 main reinforcing bars. Precast reinforced concrete piles are widely used due to their advantages of simple manufacturing, high strength, high rigidity, and the ability to be made into various cross-sectional shapes.

[0003] Currently, a type of large-diameter prestressed precast pile with announcement number CN217174723U uses flanges and bolts to connect adjacent pile sections. However, the presence of numerous transversely arranged and protruding discharge pipes on the pile surface makes the piling process inconvenient. Furthermore, the exposed flanges and bolts are prone to deformation and damage during piling, affecting the connection strength between pile sections and reducing the applicability of the precast pile connection structure. In addition, the exposed bolts and flanges are susceptible to corrosion after prolonged use, which can also affect the stability of the pile. Utility Model Content

[0004] In order to improve the connection stability between precast piles and reduce the difficulty of the pile driving process, this application provides a connection structure for precast piles.

[0005] This application provides a connection structure for precast piles, which adopts the following technical solution:

[0006] A connection structure for precast piles includes an upper precast pile, a lower precast pile, and a connecting assembly. The upper precast pile is disposed at the top of the lower precast pile. The connecting assembly includes an end plate, a connecting bolt, and a connecting nut. One end plate is connected to the bottom end of the upper precast pile and one to the top end of the lower precast pile. Both the upper and lower precast piles are square piles. Several mounting grooves are formed on the edge of the bottom end of the upper precast pile and the edge of the top end of the lower precast pile. One connecting bolt is disposed in each mounting groove of the upper precast pile, and one connecting nut is disposed in each mounting groove of the lower precast pile. The connecting bolt passes through both end plates and is threadedly connected to the corresponding connecting nut.

[0007] By adopting the above technical solution, the upper precast pile is placed on top of the lower precast pile, and the connecting bolt is placed in the mounting groove of the upper precast pile. The connecting bolt passes through the two end plates and is connected with the connecting nut, thus realizing the connection between the upper and lower precast piles. The mounting groove avoids the connecting bolt and connecting nut being exposed outside the pile body, facilitating subsequent piling operations and reducing the possibility of damage to the connection position. Through the mutual cooperation of the upper and lower precast piles and the connecting components, a stable connection between the upper and lower precast piles is achieved, which has the effect of improving the connection stability between precast piles and reducing the difficulty of the piling process.

[0008] Optionally, each corner of the top of the lower precast pile is provided with a aligning angle steel. When the upper precast pile is connected to the lower precast pile, the aligning angle steel is fitted to the four corners of the bottom end of the upper precast pile.

[0009] By adopting the above technical solution, the alignment angle steel is used to limit and guide the upper precast pile, so that the upper precast pile can be accurately aligned with the end of the lower precast pile.

[0010] Optionally, the bottom end of the upper precast pile is connected to an alignment block, and the top end of the lower precast pile is provided with an alignment slot. The alignment block and the alignment slot are correspondingly arranged. When the upper precast pile is connected to the top end of the lower precast pile, the alignment block is inserted into the alignment slot.

[0011] By adopting the above technical solution, the alignment block is inserted into the alignment slot of the lower precast pile, which further improves the connection stability between the upper and lower precast piles.

[0012] Optionally, an anti-disengagement slot is horizontally provided on the vertical sidewall of the lower precast pile. The anti-disengagement slot is connected to the alignment slot. The alignment block is provided with a insertion groove corresponding to the anti-disengagement slot. An anti-disengagement rod is inserted into the anti-disengagement slot. One end of the anti-disengagement slot is inserted into the insertion groove. The other end of the anti-disengagement slot extends out of the anti-disengagement slot and is connected to a connecting plate. The connecting plate is connected to the sidewall of the lower precast pile through a connector.

[0013] By adopting the above technical solution, one end of the anti-disengagement rod is inserted into the insertion slot of the alignment block through the anti-disengagement slot, which further improves the connection stability between the alignment block and the lower precast pile.

[0014] Optionally, a connecting blind groove is provided on the side wall of the lower precast pile. The connecting blind groove is connected to the anti-detachment slot and corresponds to the shape of the connecting plate. The connecting plate is embedded in the connecting blind groove, and the side of the connecting plate away from the anti-detachment rod is flush with the side wall of the lower precast pile.

[0015] By adopting the above technical solution, the setting of the connecting blind groove enables the connecting plate to remain flush with the side wall of the lower precast pile, which facilitates the subsequent pile driving process.

[0016] Optionally, a sliding ring is slidably connected to the lower precast pile. The sliding ring is a square ring, and a baffle plate is connected to the top of each side of the sliding ring. The position of the baffle plate corresponds to the position of the mounting groove. A fixing threaded hole is opened on the lower precast pile, and a connecting threaded hole is opened on the sliding ring. The sliding ring and the lower precast pile are connected by bolts passing through the connecting threaded hole and the fixing threaded hole. When the sliding ring is connected to the lower precast pile, the baffle plate covers the mounting groove and the anti-detachment slot.

[0017] By adopting the above technical solution, after the connection between the upper and lower precast piles is completed, the sliding ring is moved upward and bolts are used to connect the sliding ring to the lower precast pile. At this time, the shielding plate will shield the mounting groove and the anti-detachment slot, preventing the connecting parts on it from directly contacting the soil and causing corrosion, which helps to extend the service life of the structure.

[0018] Optionally, a limiting ring is connected to the lower precast pile, and the limiting ring is located below the sliding ring. When the sliding ring overlaps the limiting ring, the shielding plate is located below the anti-detachment slot and the mounting slot.

[0019] By adopting the above technical solution, the limiting ring limits the sliding ring, and when it is necessary to separate the upper precast pile from the lower precast pile, the limiting ring supports the sliding ring.

[0020] Optionally, a contact pad is connected to the bottom surface of the end plate connected to the upper precast pile and the top surface of the end plate connected to the lower precast pile.

[0021] By adopting the above technical solution, the design of the contact pad reduces the possibility of damage and deformation of the end plate during use.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] 1. Through the cooperation of the upper precast pile, the lower precast pile and the connecting components, a stable connection between the upper and lower precast piles is achieved, which has the effect of improving the connection stability between precast piles and reducing the difficulty of the pile driving process.

[0024] 2. The alignment block is inserted into the alignment slot of the lower precast pile, which further improves the connection stability between the upper and lower precast piles;

[0025] 3. The shielding plate covers the mounting slot and anti-detachment slot, preventing the connectors on them from directly contacting the soil and causing corrosion, which helps to extend the service life of the structure. Attached Figure Description

[0026] Figure 1 This is a schematic diagram illustrating a connection structure for precast piles, as described in this application.

[0027] Figure 2 This is a partial exploded view of the anti-detachment slot and the alignment slot in the embodiments of this application.

[0028] Explanation of reference numerals in the attached drawings: 1. Upper precast pile; 2. Lower precast pile; 21. Alignment slot; 22. Anti-detachment slot; 23. Connecting blind slot; 24. Fixing threaded hole; 3. End plate; 31. Mounting threaded hole; 4. Connecting bolt; 5. Connecting nut; 6. Contact pad; 7. Mounting groove; 8. Alignment angle steel; 9. Alignment insert; 91. Insertion groove; 10. Connecting plate; 11. Limiting ring; 12. Sliding ring; 121. Connecting threaded hole; 13. Baffle plate; 14. Anti-detachment rod. Detailed Implementation

[0029] The following is in conjunction with the appendix Figure 1-2 This application will be further described in detail below. Embodiments of this application provide a connection structure for precast piles, which improves the connection stability between precast piles and reduces the difficulty of the pile driving process.

[0030] Reference Figure 1 and Figure 2 A connection structure for precast piles includes an upper precast pile 1, a lower precast pile 2, and a connecting assembly. The upper precast pile 1 is vertically positioned at the top of the lower precast pile 2, and both the upper precast pile 1 and the lower precast pile 2 are square piles. The connecting assembly includes an end plate 3, connecting bolts 4, and connecting nuts 5. An end plate 3 is connected to both the bottom end of the upper precast pile 1 and the top end of the lower precast pile 2. The shape of the end plate 3 is a square plate corresponding to the cross-sectional shape of the upper precast pile 1 and the lower precast pile 2. A contact pad 6 is provided on the bottom surface of the upper end plate 3 and the top surface of the lower end plate 3. Several semi-cylindrical mounting grooves 7 are formed on the bottom edge of both the upper and lower precast pile 1 and the lower precast pile 2, respectively. These mounting grooves 7 on the upper and lower precast pile 1 are vertically aligned, and the end plate 3 has mounting threaded holes 31 that correspond to the mounting grooves 7. One connecting bolt 4 is provided in each mounting slot 7 on the upper precast pile 1, and one connecting nut 5 is provided in each mounting slot 7 on the lower precast pile 2. The connecting bolt 4 passes through the corresponding mounting threaded hole 31 and is threadedly connected to the corresponding connecting nut 5.

[0031] Reference Figure 1 and Figure 2 Each of the four corners of the top of the lower precast pile 2 is connected to an alignment angle steel 8. An alignment slot 21, a square groove, is provided at the top of the lower precast pile 2. The end plate 3 and contact pad 6 on the lower precast pile 2 have openings corresponding to the alignment slot 21. An alignment block 9 is connected to the bottom of the upper precast pile 1, and the shape and position of the alignment block 9 correspond to the alignment slot 21. An anti-detachment slot 22 is horizontally provided on the side wall of the lower precast pile 2. One end of the anti-detachment slot 22 is connected to the alignment slot 21. An insertion groove 91 corresponding to the position and shape of the anti-detachment slot 22 is provided on the alignment block 9. A connecting blind groove 23 communicating with the anti-detachment slot 22 is provided on the outer wall of the lower precast pile 2. An anti-detachment rod 14 is inserted into the anti-detachment slot 22. One end of the anti-detachment rod 14 is inserted into the insertion slot 91 of the alignment block 9. The other end of the anti-detachment rod 14 is connected to a connecting plate 10. The connecting plate 10 is embedded in the connecting blind slot 23. One side of the connecting plate 10 is flush with the side wall of the lower precast pile 2. The connecting plate 10 is connected to the lower precast pile 2 by bolts.

[0032] Reference Figure 1 A limiting ring 11 is fixedly connected to the lower precast pile 2. A square-shaped sliding ring 12 is slidably mounted on the lower precast pile 2, located above the limiting ring 11. A baffle plate 13 is vertically connected to the top of each side of the sliding ring 12. The lower precast pile 2 has a fixing threaded hole 24, and the sliding ring 12 has a connecting threaded hole 121. The connecting threaded hole 121 and the fixing threaded hole 24 are vertically aligned. The sliding ring 12 and the lower precast pile 2 are connected by bolts passing through the connecting threaded hole 121 and the fixing threaded hole 24. At this time, the baffle plate 13 covers the anti-detachment slot 22 and the mounting groove 7. When the sliding ring 12 overlaps the limiting ring 11, the baffle plate 13 is located below the mounting groove 7 and the anti-detachment slot 22.

[0033] Reference Figure 1 and Figure 2When connecting the upper precast pile 1 and the lower precast pile 2, the alignment angle steel 8 fits against the four corners of the upper precast pile 1, achieving the limiting and guiding of the upper precast pile 1. The alignment block 9 is inserted into the alignment slot 21, further improving the connection stability between the upper precast pile 1 and the lower precast pile 2. The two end plates 3 are connected together using connecting bolts 4 and connecting nuts 5. The installation groove 7 avoids exposing the connecting bolts 4 and connecting nuts 5 to the outside of the pile body, reducing the possibility of damage to the connecting bolts 4 and connecting nuts 5 during use. The contact pad 6 is sandwiched between the two end plates 3, reducing the possibility of damage caused by direct contact between the two end plates 3. The anti-detachment rod 14 is inserted into the anti-detachment slot 22, and the connecting plate 10 is connected to the lower precast pile 2 by countersunk bolts. The end of the anti-detachment rod 14 is embedded in the insertion groove 91 of the alignment block 9, improving the connection strength between the alignment block 9 and the lower precast pile 2.

[0034] Reference Figure 1 After completing the above operations, the sliding ring 12 is moved upward, and the bolt is passed through the connecting threaded hole 121 and the mounting threaded hole 31 to connect the sliding ring 12 to the lower precast pile 2. The shielding plate 13 shields the anti-detachment slot 22 and several mounting slots 7, preventing the connectors on them from directly contacting the underground soil and causing corrosion damage to the connectors, thus helping to extend the connection stability and service life of the pile body. The setting of the limiting ring 11 realizes the limiting and support of the sliding ring 12, and provides support for the sliding ring 12 when it is necessary to disassemble the upper precast pile 1 and the lower precast pile 2.

[0035] The implementation principle of a connection structure for precast piles in this embodiment is as follows: When connecting the upper precast pile 1 and the lower precast pile 2, the alignment block 9 is inserted into the alignment slot 21. The two end plates 3 are connected together using connecting bolts 4 and connecting nuts 5. The installation groove 7 prevents the connecting bolts 4 and connecting nuts 5 from being exposed outside the pile body, reducing the possibility of damage to the connecting bolts 4 and connecting nuts 5 during use. Moving the sliding ring 12 upwards, the shielding plate 13 shields the anti-detachment slot 22 and several installation grooves 7, preventing the connectors on them from directly contacting the underground soil and causing corrosion damage to the connectors.

[0036] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A connection structure for precast piles, characterized in that: The assembly includes an upper precast pile (1), a lower precast pile (2), and a connecting component. The upper precast pile (1) is located at the top of the lower precast pile (2). The connecting component includes an end plate (3), a connecting bolt (4), and a connecting nut (5). One end plate (3) is connected to the bottom of the upper precast pile (1) and the top of the lower precast pile (2). Both the upper precast pile (1) and the lower precast pile (2) are square piles. Several mounting grooves (7) are provided on the edge of the bottom of the upper precast pile (1) and the edge of the top of the lower precast pile (2). One connecting bolt (4) is provided in each mounting groove (7) of the upper precast pile (1). One connecting nut (5) is provided in each mounting groove (7) of the lower precast pile (2). The connecting bolts (4) pass through the two end plates (3) and are threadedly connected to the corresponding connecting nuts (5).

2. The connection structure for precast piles according to claim 1, characterized in that: Each corner of the top of the lower precast pile (2) is provided with a aligning angle steel (8). When the upper precast pile (1) is connected to the lower precast pile (2), the aligning angle steel (8) is fitted to the four corners of the bottom end of the upper precast pile (1).

3. A connection structure for precast piles according to claim 2, characterized in that: The bottom end of the upper precast pile (1) is connected to an alignment block (9), and the top end of the lower precast pile (2) is provided with an alignment slot (21). The alignment block (9) and the alignment slot (21) are correspondingly arranged. When the upper precast pile (1) is connected to the top end of the lower precast pile (2), the alignment block (9) is inserted into the alignment slot (21).

4. A connection structure for precast piles according to claim 3, characterized in that: A horizontal anti-disengagement slot (22) is provided on the vertical side wall of the lower precast pile (2). The anti-disengagement slot (22) is connected to the alignment slot (21). The alignment block (9) is provided with a plug groove (91) corresponding to the anti-disengagement slot (22). An anti-disengagement rod (14) is inserted into the anti-disengagement slot (22). One end of the anti-disengagement slot (22) is inserted into the plug groove (91). The other end of the anti-disengagement slot (22) extends out of the anti-disengagement slot (22) and is connected to a connecting plate (10). The connecting plate (10) is connected to the side wall of the lower precast pile (2) through a connector.

5. A connection structure for precast piles according to claim 4, characterized in that: A connecting blind groove (23) is provided on the side wall of the lower precast pile (2). The connecting blind groove (23) is connected to the anti-detachment slot (22) and corresponds to the shape of the connecting plate (10). The connecting plate (10) is embedded in the connecting blind groove (23). The side of the connecting plate (10) away from the anti-detachment rod (14) is flush with the side wall of the lower precast pile (2).

6. A connection structure for precast piles according to claim 4, characterized in that: A sliding ring (12) is slidably connected to the lower precast pile (2). The sliding ring (12) is a square ring. A baffle plate (13) is connected to the top of each side of the sliding ring (12). The position of the baffle plate (13) corresponds to the position of the mounting groove (7). A fixing threaded hole (24) is opened on the lower precast pile (2). A connecting threaded hole (121) is opened on the sliding ring (12). The sliding ring (12) and the lower precast pile (2) are connected by bolts passing through the connecting threaded hole (121) and the fixing threaded hole (24). When the sliding ring (12) is connected to the lower precast pile (2), the baffle plate (13) covers the mounting groove (7) and the anti-detachment slot (22).

7. A connection structure for precast piles according to claim 6, characterized in that: A limiting ring (11) is connected to the lower precast pile (2). The limiting ring (11) is located below the sliding ring (12). When the sliding ring (12) overlaps the limiting ring (11), the shielding plate (13) is located below the anti-detachment slot (22) and the mounting slot (7).

8. A connection structure for precast piles according to claim 1, characterized in that: A contact pad (6) is connected to the bottom surface of the end plate (3) connected to the upper precast pile (1) and the top surface of the end plate (3) connected to the lower precast pile (2).

Images