A precast pile splicing structure

Abstract

The utility model discloses a prefabricated pile joint structure belongs to building construction technical field, including upper stake body and lower stake body, upper stake body is located the upside of lower stake body, and the bottom fixedly connected with upper connecting seat of upper stake body, and the top fixedly connected with lower connecting seat of lower stake body, and upper connecting seat and lower connecting seat are inserted, and the circumference surface of upper connecting seat is equipped with a plurality of retraction groove, and a plurality of retraction grooves all slide and connect with the clamping block, and a plurality of clamping blocks all are clamped in lower connecting seat, and a plurality of retraction grooves all are provided with spring, and a plurality of springs correspond with a plurality of clamping blocks respectively, and two sliding plates are slidably inserted on a plurality of lower connecting seats, and the end of two sliding plates away from each other all is fixedly connected with the outer clamping plate, the utility model discloses, this pile joint structure can utilize the weight of building and cooperate two outer clamping plates to improve the pile joint intensity of upper stake body and lower stake body, makes the pile foundation keep stable when using.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, and more specifically, to a precast pile splicing structure. Background Technology

[0002] Pile splicing refers to the process of connecting precast piles one by one to continue driving them down to the designed depth because the length of a single pile is insufficient. It involves connecting the top of the previous pile to the bottom of the next pile. For example, in bridge abutment and pier foundations, where the original ground level is too low to reach the designed height, pile splicing is used to ensure the pile length is maintained.

[0003] Currently, precast piles need to be connected by a splicing structure to ensure the stability of the connection and the load-bearing capacity of the building. However, most existing splicing structures usually use bolts or interlocking mechanical connections. The connection points formed by bolts and interlocks are relatively fragile, resulting in low strength of the precast piles after connection. Therefore, this utility model proposes a splicing structure for precast piles. Utility Model Content

[0004] 1. Technical problems to be solved

[0005] In view of the problems existing in the prior art, the purpose of this utility model is to provide a precast pile splicing structure, which aims to solve the problem that the existing splicing structure usually adopts bolt or interlocking mechanical connection, and the connection point formed by bolt and lock is relatively weak, resulting in low strength after the precast pile is connected.

[0006] 2. Technical Solution

[0007] To solve the above problems, the present invention adopts the following technical solution:

[0008] A precast pile splicing structure includes an upper pile body and a lower pile body. The upper pile body is located above the lower pile body. An upper connecting seat is fixedly connected to the bottom end of the upper pile body, and a lower connecting seat is fixedly connected to the top end of the lower pile body. The upper and lower connecting seats are interlocked. Multiple retraction grooves are formed on the circumferential surface of the upper connecting seat. Each of the multiple retraction grooves has a locking block slidably connected within it, and each locking block is engaged within the lower connecting seat. Springs are provided within each of the multiple retraction grooves, and each spring corresponds to one of the locking blocks. The multiple lower connecting seats slide upwards... The device has two sliding plates, and each of the two sliding plates has an outer clamp plate fixedly connected to its far end. The two outer clamp plates are symmetrically distributed on the outside of the upper pile body, lower pile body, upper connecting seat, and lower connecting seat. Each of the two sliding plates has a connecting rod that is movably hinged to it via a hinge shaft. Both connecting rods are located inside the lower connecting seat. Each of the two connecting rods has a top plate that is movably hinged to it via a hinge shaft. The top plate corresponds to the bottom end of the upper connecting seat. Each of the two outer clamp plates has two limit bolts threaded to it. The four limit bolts pass through the upper pile body and the lower pile body, respectively.

[0009] As a preferred embodiment of this utility model, the inner walls of the multiple retraction grooves are provided with limiting slide grooves, the multiple card blocks are fixedly connected to limiting sliders, and the multiple limiting sliders are slidably connected to the multiple limiting slide grooves respectively.

[0010] As a preferred embodiment of this utility model, a plurality of positioning pins are fixedly connected to the upper connecting seat, and a plurality of positioning holes are opened at the top of the lower connecting seat, and the plurality of positioning pins are respectively inserted into the plurality of positioning holes.

[0011] As a preferred embodiment of this utility model, the bottom end of the upper connecting seat is fixedly connected to a plug rod, and the plug rod movably penetrates the top plate.

[0012] As a preferred embodiment of this utility model, the ends of the upper connecting seat and the lower connecting seat that are far apart are both fixedly connected with reinforcing columns, and the two reinforcing columns are respectively inserted into the upper pile body and the lower pile body.

[0013] 3. Beneficial effects

[0014] Compared with existing technologies, the advantages of this utility model are:

[0015] (1) In this scheme, the upper and lower pile bodies are connected by an upper connecting seat and a lower connecting seat, which are inserted into the lower connecting seat to form a limit, thereby achieving rapid pile connection. At the same time, after the upper connecting seat is fixed, the bottom will correspond to the top plate. The top plate is held in a state of inward tension by a connecting rod and two sliding plates. The two outer clamps wrap around the connection between the upper and lower pile bodies from the outside. When the upper and lower pile bodies are subjected to external forces during use, the weight of the building at the top of the upper pile body acts on the upper connecting seat, and the upper connecting seat acts on the top plate. The top plate cannot rise, so the two outer clamps cannot move away. The connection between the upper and lower pile bodies is always kept in a stable wrapping state, thereby improving the connection strength. This pile connection structure can use the weight of the building in conjunction with the two outer clamps to improve the pile connection strength between the upper and lower pile bodies, so that the pile foundation remains stable during use.

[0016] (2) In this scheme, when the two outer clamps wrap and fix the connection between the upper and lower pile bodies, the four limiting bolts are screwed into the two outer clamps and inserted into the upper and lower pile bodies respectively, so that the two outer clamps are in a locked state, which further improves the pull-out strength of the pile joint between the upper and lower pile bodies. Attached Figure Description

[0017] Figure 1 This is the front view of the present invention;

[0018] Figure 2 This is a cross-sectional view of the present invention;

[0019] Figure 3 This is a perspective view of some of the mechanisms in this utility model;

[0020] Figure 4 In this utility model Figure 3 Exploded view.

[0021] Explanation of the labels in the diagram:

[0022] 1. Upper pile body; 2. Lower pile body; 3. Upper connecting seat; 4. Lower connecting seat; 5. Retraction groove; 6. Locking block; 7. Spring; 8. Slide plate; 9. Outer clamping plate; 10. Connecting rod; 11. Top plate; 12. Limiting bolt; 13. Limiting slide groove; 14. Limiting slider; 15. Positioning post; 16. Positioning hole; 17. Insert rod; 18. Reinforcing post. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0024] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] Example:

[0027] Please see Figure 1-4A precast pile connection structure includes an upper pile body 1 and a lower pile body 2. The upper pile body 1 is located above the lower pile body 2. An upper connecting seat 3 is fixedly connected to the bottom end of the upper pile body 1, and a lower connecting seat 4 is fixedly connected to the top end of the lower pile body 2. The upper connecting seat 3 and the lower connecting seat 4 are interlocked. Multiple retraction grooves 5 are formed on the circumferential surface of the upper connecting seat 3. Each of the multiple retraction grooves 5 has a slidingly connected locking block 6, and each locking block 6 is engaged within the lower connecting seat 4. Each of the multiple retraction grooves 5 is provided with a spring 7, and each spring 7 corresponds to one of the locking blocks 6. Two... Two sliding plates 8 are fixedly connected to each other at their far ends. The two outer clamping plates 9 are symmetrically distributed on the outside of the upper pile body 1, the lower pile body 2, the upper connecting seat 3, and the lower connecting seat 4. Each sliding plate 8 is movably hinged to a connecting rod 10 through a hinge shaft. Both connecting rods 10 are located inside the lower connecting seat 4. Each connecting rod 10 is movably hinged to a top plate 11 through a hinge shaft. The top plate 11 corresponds to the bottom end of the upper connecting seat 3. Each outer clamping plate 9 is threaded with two limiting bolts 12. The four limiting bolts 12 penetrate into the upper pile body 1 and the lower pile body 2, respectively.

[0028] In this embodiment, when the upper pile body 1 and the lower pile body 2 are joined, the upper connecting seat 3 is inserted into the lower connecting seat 4. During the insertion process, multiple locking blocks 6 are squeezed and retracted into multiple retraction grooves 5, and multiple springs 7 are squeezed. After the upper connecting seat 3 is inserted into the lower connecting seat 4, the multiple springs 7 cause the multiple locking blocks 6 to pop out from the multiple retraction grooves 5 and lock into the lower connecting seat 4, so that the upper connecting seat 3 and the lower connecting seat 4 are connected. At the same time, the upper connecting seat 3 presses down the top plate 11. The top plate 11 pulls the two sliding plates 8 through the two connecting rods 10, so that the two sliding plates 8 respectively drive the two outer clamping plates 9 to move closer together. The two outer clamping plates 9 wrap around the joint of the upper pile body 1 and the lower pile body 2 from the outside to improve the joint strength. Then, four limiting bolts 12 are screwed into the two outer clamping plates 9. The four limiting bolts 12 penetrate the two outer clamping plates 9 and are respectively inserted into the upper pile body 1 and the lower pile body 2, further improving the joint strength between the upper pile body 1 and the lower pile body 2.

[0029] Specifically, the inner walls of the multiple retraction grooves 5 are provided with limit slide grooves 13, and the multiple locking blocks 6 are fixedly connected with limit sliders 14, and the multiple limit sliders 14 are respectively slidably connected in the multiple limit slide grooves 13.

[0030] In this embodiment, as the multiple card blocks 6 slide within the multiple retraction grooves 5, they respectively drive the multiple limiting sliders 14 to slide within the multiple limiting grooves 13. The multiple limiting grooves 13 and the multiple limiting sliders 14 restrict the sliding of the multiple card blocks 6, preventing the multiple card blocks 6 from falling out of the multiple retraction grooves 5.

[0031] Specifically, multiple positioning pins 15 are fixedly connected to the upper connecting seat 3, and multiple positioning holes 16 are opened at the top of the lower connecting seat 4, with the multiple positioning pins 15 respectively inserted into the multiple positioning holes 16.

[0032] In this embodiment, when the upper connecting seat 3 is inserted into the lower connecting seat 4, multiple positioning pins 15 follow the upper connecting seat 3 and are respectively inserted into multiple positioning holes 16. The multiple positioning holes 16 and multiple positioning pins 15 cooperate to prevent the upper connecting seat 3 from rotating, so that the connection between the upper connecting seat 3 and the lower connecting seat 4 remains stable.

[0033] Specifically, the bottom end of the upper connecting seat 3 is fixedly connected to the insertion rod 17, and the insertion rod 17 movably passes through the top plate 11.

[0034] In this embodiment, when the upper connecting seat 3 is inserted into the lower connecting seat 4, it drives the insertion rod 17 to penetrate the top plate 11. After the insertion rod 17 penetrates the top plate 11, it can further improve the insertion strength between the upper connecting seat 3 and the lower connecting seat 4.

[0035] Specifically, each of the upper connecting seat 3 and the lower connecting seat 4 has a reinforcing column 18 fixedly connected to its far end, and the two reinforcing columns 18 are respectively inserted into the upper pile body 1 and the lower pile body 2.

[0036] In this embodiment, the two reinforcing columns 18 are respectively inserted into the upper pile body 1 and the lower pile body 2, which makes the connection between the upper connecting seat 3 and the lower connecting seat 4 at the ends of the upper pile body 1 and the lower pile body 2 more stable.

[0037] Working principle: When splicing the upper pile body 1 and the lower pile body 2, the upper pile body 1 is inserted into the lower connecting seat 4 at the top of the lower pile body 2 through the upper connecting seat 3 at the bottom. During the insertion process, the lower connecting seat 4 first presses against multiple locking blocks 6, causing the locking blocks 6 to retract into multiple retraction grooves 5 and press against multiple springs 7. After the upper connecting seat 3 and the lower connecting seat 4 are inserted and connected, the multiple springs 7 use their own elasticity to cause the multiple locking blocks 6 to slide out from the multiple retraction grooves 5, thereby locking into the lower connecting seat 4, forming a stable connection between the upper connecting seat 3 and the lower connecting seat 4. The connection is made so that the bottom of the upper connecting seat 3 restricts the top plate 11. The top plate 11 pulls the two sliding plates 8 through the two connecting rods 10. The two sliding plates 8 bring the two outer clamping plates 9 closer together. The two outer clamping plates 9 wrap around the connection between the upper pile body 1 and the lower pile body 2 from the outside to improve the strength of the connection. Then, by screwing the four limiting bolts 12 into the two outer clamping plates 9 respectively, they are inserted into the upper pile body 1 and the lower pile body 2, which further improves the strength of the pile connection between the upper pile body 1 and the lower pile body 2, so that the upper pile body 1 and the lower pile body 2 after the pile connection can stably support the building.

[0038] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model based on the technical solution and its improved concept should be covered within the protection scope of the present utility model.

Claims

1. A precast pile splicing structure, comprising an upper pile body (1) and a lower pile body (2), characterized in that: The upper pile body (1) is located above the lower pile body (2). The bottom end of the upper pile body (1) is fixedly connected to an upper connecting seat (3), and the top end of the lower pile body (2) is fixedly connected to a lower connecting seat (4). The upper connecting seat (3) and the lower connecting seat (4) are inserted into each other. The circumferential surface of the upper connecting seat (3) is provided with multiple retraction grooves (5). Each of the multiple retraction grooves (5) is slidably connected to a locking block (6), and the multiple locking blocks (6) are locked into the lower connecting seat (4). Each of the multiple retraction grooves (5) is provided with a spring (7), and the multiple springs (7) correspond to the multiple locking blocks (6). Two sliding plates (8) are slidably inserted into the multiple lower connecting seats (4). The two outer clamps (9) are fixedly connected to the opposite ends of the sliding plates (8), and the two outer clamps (9) are symmetrically distributed on the outside of the upper pile body (1), the lower pile body (2), the upper connecting seat (3) and the lower connecting seat (4). The two sliding plates (8) are movably hinged to the connecting rods (10) by hinge shafts, and the two connecting rods (10) are located in the lower connecting seat (4). The two connecting rods (10) are movably hinged to the top plate (11) by hinge shafts, and the top plate (11) corresponds to the bottom end of the upper connecting seat (3). The two outer clamps (9) are threaded with two limiting bolts (12), and the four limiting bolts (12) penetrate into the upper pile body (1) and the lower pile body (2) respectively.

2. The precast pile splicing structure according to claim 1, characterized in that: The inner walls of the multiple retraction grooves (5) are provided with limiting slide grooves (13), and the multiple locking blocks (6) are fixedly connected with limiting sliders (14), and the multiple limiting sliders (14) are slidably connected in the multiple limiting slide grooves (13).

3. The precast pile splicing structure according to claim 2, characterized in that: The upper connecting seat (3) is fixedly connected with multiple positioning pins (15), and the top of the lower connecting seat (4) is provided with multiple positioning holes (16), and the multiple positioning pins (15) are respectively inserted into the multiple positioning holes (16).

4. A precast pile splicing structure according to claim 3, characterized in that: The bottom end of the upper connecting seat (3) is fixedly connected to a plug rod (17), and the plug rod (17) moves through the top plate (11).

5. A precast pile splicing structure according to claim 4, characterized in that: The upper connecting seat (3) and the lower connecting seat (4) are fixedly connected to a reinforcing column (18) at their opposite ends, and the two reinforcing columns (18) are respectively inserted into the upper pile body (1) and the lower pile body (2).

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