Pile foundation mechanical connecting structure

Abstract

The utility model relates to the technical field of pile foundation connection, and discloses a pile foundation mechanical connection structure which comprises an upper end plate and a lower end plate, a quick connection assembly is arranged between the upper end plate and the lower end plate, and a fastening assembly is arranged outside the lower end plate. The quick connecting assembly comprises a bolt hole, the bolt hole is formed in the outer side of the upper end plate, a through hole is formed in the outer side of the lower end plate, a stopping block is fixedly connected to the outer surface of the upper end plate and located on the outer side of the bolt hole of the upper end plate, a fixing box is fixedly connected to the outer surface of the lower end plate, and the fixing box is fixedly connected to the outer surface of the lower end plate. The fixing box is located on the outer side of the through hole of the lower end plate, and a bolt is arranged between the bolt hole and the through hole. According to the utility model, the bolt hole, the stopping block, the fixing box and the bolt are tightly matched, so that the quick connection of the precast pile is realized; during construction, bolts penetrate through the bolt holes to be inserted into the fixing boxes, primary connection can be completed, and the connection time is shortened.

Description

Technical Field

[0001] This utility model relates to the field of pile foundation connection technology, and in particular to a pile foundation mechanical connection structure. Background Technology

[0002] Mechanical connection structures for pile foundations are an important structural form used to connect different components or pile segments in a pile foundation. They mainly achieve reliable connections through mechanical means to ensure the stability and integrity of the pile foundation during load bearing and transmission. Common mechanical connection structures for pile foundations include sleeve connections, conical sawtooth connections, and straight sawtooth connections.

[0003] These traditional connection methods can meet engineering requirements to some extent, but they also have many drawbacks. Regarding connection efficiency and accuracy, sleeve connections require precise alignment of the sleeve and reinforcing bar during installation, making the process cumbersome, time-consuming, and affecting construction progress. Conical and straight sawtooth connections require extremely high sawtooth machining precision, are complex to manufacture, and if the sawtooth is damaged or contains debris during on-site connection, the connection accuracy will decrease, thus affecting the overall performance of the pile foundation. From the perspective of post-connection tightening, traditional connection methods are prone to loosening due to external environmental factors (such as vibration and groundwater erosion) during long-term use. Once the connection loosens, the load on the pile foundation will be uneven, reducing its bearing capacity and posing a serious threat to the stability of the building. Utility Model Content

[0004] To overcome the above deficiencies, this utility model provides a mechanical connection structure for pile foundations, which aims to improve the connection efficiency and accuracy issues and the long-term tightness issues after connection in the existing technology.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a mechanical connection structure for pile foundation, comprising an upper end plate and a lower end plate, wherein a quick-connect assembly is provided between the upper end plate and the lower end plate, and a fastening assembly is provided on the outside of the lower end plate;

[0006] The quick-connect assembly includes bolt holes on the outer side of the upper end plate and a through hole on the outer side of the lower end plate. A blocking block is fixedly connected to the outer surface of the upper end plate, located outside the bolt holes on the upper end plate. A fixing box is fixedly connected to the outer surface of the lower end plate, located outside the through hole on the lower end plate. A bolt is provided between the bolt holes and the through hole, with one end of the bolt fixedly connected to the side surface of the blocking block and the other end of the bolt engaged inside the fixing box.

[0007] As a further description of the above technical solution: the fastening assembly includes two springs, which are disposed inside the fixing box. Two locking blocks are slidably connected inside the fixing box. One end of each spring is fixedly connected to the inner wall of the fixing box, and the other end of each spring is fixedly connected to the side surface of the locking block.

[0008] As a further description of the above technical solution: the locking block has serrations on the side away from the spring.

[0009] As a further description of the above technical solution: the size of the circle formed by the two locking blocks is adapted to the size of the bolt, and the center point of the circle formed by the two locking blocks and the center point of the bolt are located on the same axis.

[0010] As a further description of the above technical solution: the number of the fixing box, the bolt and the blocking block are the same.

[0011] As a further description of the above technical solution: the number of bolt holes is the same as the number of through holes, and the center points of the bolt holes and the through holes are located on the same axis.

[0012] As a further description of the above technical solution: the serrations of the locking block are adapted to the threads of the bolt.

[0013] As a further description of the above technical solution: the internal space dimension of the fixing box is larger than the dimension of the bolt insertion end, and the width of the blocking block is larger than the bolt diameter.

[0014] This utility model has the following beneficial effects:

[0015] 1. In this utility model, the rapid connection of precast piles is achieved through the tight cooperation of bolt holes, blocking blocks, fixing boxes and bolts. During construction, the bolts are inserted into the fixing boxes through the bolt holes to complete the initial connection, which greatly shortens the connection time and improves construction efficiency. At the same time, the spring of the fastening component pushes the locking block to engage with the bolt, which further enhances the stability of the connection, prevents the connection from loosening in subsequent use, and ensures the stability of the pile foundation structure when bearing and transmitting loads.

[0016] 2. In this utility model, the number of fixing boxes, bolts and blocking blocks are the same, the number of bolt holes on the upper end plate and the lower end plate are the same and the center point is located on the same axis, which ensures the uniformity and accuracy of the connection; in actual construction, it can effectively reduce the problem of uneven pile foundation stress caused by connection deviation, improve the bearing capacity of the pile foundation and avoid the impact on the stability of the building. Attached Figure Description

[0017] Figure 1This is a component diagram of a pile foundation mechanical connection structure proposed in this utility model;

[0018] Figure 2 This is a schematic diagram of a pile foundation mechanical connection structure proposed in this utility model;

[0019] Figure 3 This is a schematic diagram of the fixing box in a pile foundation mechanical connection structure proposed in this utility model.

[0020] Legend:

[0021] 1. Upper end plate; 2. Lower end plate; 3. Quick-connect assembly; 4. Fastening assembly; 301. Bolt hole (upper end plate) / through hole (lower end plate); 302. Barrier block; 303. Fixing box; 304. Bolt; 5. Spring; 6. Locking block; 7. Serrated edge. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Reference Figures 1-3 The present invention provides an embodiment of a pile foundation mechanical connection structure, including an upper end plate 1 and a lower end plate 2, a quick-connect assembly 3 is provided between the upper end plate 1 and the lower end plate 2, and a fastening assembly 4 is provided on the outside of the lower end plate 2.

[0024] The quick-connect assembly 3 includes a bolt hole 301, which is located on the outer side of the upper end plate 1. A through hole is provided on the outer side of the lower end plate 2. A blocking block 302 is fixedly connected to the outer surface of the upper end plate 1. The blocking block 302 is located on the outer side of the bolt hole 301 of the upper end plate 1. A fixing box 303 is fixedly connected to the outer surface of the lower end plate 2. The fixing box 303 is located on the outer side of the through hole of the lower end plate 2. A bolt 304 is provided between the bolt hole 301 and the through hole. One end of the bolt 304 is fixedly connected to the side surface of the blocking block 302, and the other end of the bolt 304 is engaged inside the fixing box 303.

[0025] The number of fixing boxes 303, bolts 304 and blocking blocks 302 are the same.

[0026] The number of bolt holes 301 and through holes is the same, and the center points of bolt holes 301 and through holes are located on the same axis.

[0027] Specifically, the upper end plate 1 and the lower end plate 2 form a connecting channel and provide installation positions for the remaining components; bolt holes 301 and through holes are opened on the outer sides of the upper end plate 1 and the lower end plate 2, providing installation channels for bolts 304, allowing the upper end plate 1 and the lower end plate 2 to be initially connected by bolts 304; the blocking block 302 on the outer side of the upper end plate 1 restricts the displacement of bolts 304, preventing bolts from coming out of the bolt holes 301 of the upper end plate 1 and ensuring the stability of the connection; the fixing box 303 on the outer side of the lower end plate 2 is used to accommodate the other end of bolts 304, providing a mounting position for the bolts. The bolt provides a stable snap-fit ​​position; one end of the bolt 304 is fixed to the side surface of the barrier block 302, and the other end is snapped into the inside of the fixing box 303, realizing the rapid connection of the upper end plate 1 and the lower end plate 2, shortening the connection time of the precast pile and improving construction efficiency; in addition, the number of fixing boxes 303, bolts 304 and barrier blocks 302 are the same, and the number of bolt holes 301 and through holes of the upper end plate 1 and the lower end plate 2 are the same and the center points are on the same axis. These designs ensure the uniformity and stability of the connection, avoid connection deviation, and improve the quality of pile foundation connection.

[0028] The fastening assembly 4 includes two springs 5, which are disposed inside the fixing box 303. Two locking blocks 6 are slidably connected inside the fixing box 303. One end of the spring 5 is fixedly connected to the inner wall of the fixing box 303, and the other end of the spring 5 is fixedly connected to the side surface of the locking block 6.

[0029] The locking block 6 has serrations 7 on the side away from the spring 5.

[0030] The size of the circle formed by the two locking blocks 6 is adapted to the size of the bolt 304, and the center point of the circle formed by the two locking blocks 6 and the center point of the bolt 304 are located on the same axis.

[0031] The serrations 7 of the locking block 6 are adapted to the threads of the bolt 304.

[0032] The internal space of the fixing box 303 is larger than the size of the insertion end of the bolt 304, and the width of the blocking block 302 is larger than the diameter of the bolt 304.

[0033] Specifically, two springs 5 ​​are installed inside the fixing box 303. When the bolt 304 is inserted into the fixing box 303, the springs 5 ​​provide a continuous pushing force. Simultaneously, the two locking blocks 6 inside the fixing box 303 can slide along the inner wall of the fixing box 303 under the pushing force of the springs 5. The serrations 7 on the outside of the locking blocks 6 can cooperate with the serrations of the bolt 304. The matching serrations of the two blocks ensure a tight engagement between the locking blocks 6 and the bolt 304, preventing the bolt 304 from loosening and enhancing the stability of the connection. The circular area formed by the two locking blocks 6... The size of the locking block 6 is adapted to the size of the bolt 304, and the center points of the two are located on the same axis. This ensures that the locking block 6 can accurately mate with the bolt 304 and achieve effective locking. The internal space of the fixing box 303 is larger than the size of the bolt 304's insertion end, which facilitates the smooth insertion of the bolt 304 and also provides space for the sliding of the locking block 6. The width of the blocking block 302 is larger than the diameter of the bolt 304. This not only ensures a stable connection between the bolt 304 and the blocking block 302, but also further prevents the bolt 304 from shifting or falling off during the connection process.

[0034] Working principle: When it is necessary to extend the precast piles, select the upper end plate 1 and lower end plate 2 (usually round or square) with the corresponding shape and size according to the shape and size of the precast piles. Then, fix the upper end plate 1 and lower end plate 2 at the joint of the upper and lower precast piles respectively. Align the upper and lower precast piles with external equipment. Then, pass the bolt 304 of the upper end plate 1 through the through hole of the lower end plate 2 and insert it into the fixing box 303 of the lower end plate 2. The spring 5 in the fixing box 303 pushes the locking block 6 to slide along the slide groove. The serration 7 of the locking block 6 engages with the bolt 304 to achieve quick locking and form a stable mechanical connection.

[0035] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A mechanical connection structure for pile foundations, comprising an upper end plate (1) and a lower end plate (2), characterized in that: A quick-connect assembly (3) is provided between the upper end plate (1) and the lower end plate (2), and a fastening assembly (4) is provided on the outside of the lower end plate (2). The quick-connect assembly (3) includes a bolt hole (301) on the outer side of the upper end plate (1) and a through hole on the outer side of the lower end plate (2). A blocking block (302) is fixedly connected to the outer surface of the upper end plate (1) and the blocking block (302) is located outside the bolt hole (301) of the upper end plate (1). A fixing box (303) is fixedly connected to the outer surface of the lower end plate (2) and the fixing box (303) is located outside the through hole of the lower end plate (2). A bolt (304) is provided between the bolt hole (301) and the through hole. One end of the bolt (304) is fixedly connected to the side surface of the blocking block (302) and the other end of the bolt (304) is engaged inside the fixing box (303).

2. The mechanical connection structure for pile foundations according to claim 1, characterized in that: The fastening assembly (4) includes two springs (5) disposed inside the fixing box (303). Two locking blocks (6) are slidably connected inside the fixing box (303). One end of the spring (5) is fixedly connected to the inner wall of the fixing box (303), and the other end of the spring (5) is fixedly connected to the side surface of the locking block (6).

3. The pile foundation mechanical connection structure according to claim 2, characterized in that: The locking block (6) has serrations (7) on the side away from the spring (5).

4. The mechanical connection structure for pile foundations according to claim 2, characterized in that: The size of the circle formed by the two locking blocks (6) is adapted to the size of the bolt (304), and the center point of the circle formed by the two locking blocks (6) and the center point of the bolt (304) are located on the same axis.

5. The mechanical connection structure for pile foundations according to claim 1, characterized in that: The number of the fixing box (303), the bolt (304), and the blocking block (302) is the same.

6. The mechanical connection structure for pile foundations according to claim 1, characterized in that: The number of bolt holes (301) is the same as the number of through holes, and the center points of the bolt holes (301) and the through holes are located on the same axis.

7. A mechanical connection structure for pile foundations according to claim 2, characterized in that: The serrations (7) of the locking block (6) are adapted to the threads of the bolt (304).

8. The mechanical connection structure for pile foundations according to claim 1, characterized in that: The internal space of the fixing box (303) is larger than the size of the bolt (304) insertion end, and the width of the blocking block (302) is larger than the diameter of the bolt (304).

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