Quick connecting piece for prestressed square piles

Abstract

The utility model discloses a prestressed square pile quick connecting piece which comprises a square pipe, an upper pile inserting part is arranged at the upper end of the square pipe, the lower end of an upper pile is inserted into the upper pile inserting part, a lower pile inserting part is arranged at the lower end of the square pipe, and the upper end of a lower pile is inserted into the lower pile inserting part. A plurality of bolt holes are formed in the periphery of the upper pile inserting part and the periphery of the lower pile inserting part respectively, an upper annular groove is formed in the lower end of the upper pile, a lower annular groove is formed in the upper end of the lower pile, a plurality of limiting plates are arranged in the upper annular groove and the lower annular groove respectively, threaded holes are formed in the limiting plates, and the threaded holes correspond to the bolt holes one to one. Lateral bolts are inserted into the bolt holes, penetrate through the bolt holes and then are screwed into the corresponding threaded holes. According to the quick connecting piece for the prestressed square piles, quick connection of the prestressed square piles can be achieved. The connecting piece is simple in structure, low in cost and convenient to operate in the connecting process. The connected prestressed square piles are not prone to dislocation, and the service life of the square piles is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of prestressed square piles, and in particular relates to a prestressed square pile quick connector. Background Art

[0002] Prestressed square piles are called reinforced concrete prestressed pipe piles. They are prefabricated in a prefabricated component processing plant, and after curing and reaching the designed strength, they are transported to the construction site, driven into the soil by a pile driver, and then the cap beam (slab) foundation is poured on the top of the pile. There are various types of prestressed square piles. From the shape, they include circular piles with circular cross-sections and square piles with square cross-sections. From the structural point of view, there are also prestressed square piles with end plates and prestressed square piles without end plates. Prestressed square piles with end plates can be connected to prestressed square piles using the connection holes on the end plates to form prestressed square piles with longer lengths to meet the needs of the design requirements of the construction site. This type of prestressed square pile with end plates has a high cost. Prestressed square piles without end plates have a low cost, but when you want to connect the prestressed square piles in sequence, you need to use connectors to connect them. The existing prestressed square pile connectors have a complex structure and require welding and other operations. It is also necessary to screw a large number of bolts, nuts, etc. in a limited operating space, which is complicated to operate. Utility Model Content

[0003] In order to solve the above technical problems, the technical solution adopted by the utility model is: a prestressed square pile quick connector, including a square tube, an upper pile insertion part is provided at the upper end of the square tube, and the lower end of the upper pile is inserted into the upper pile insertion part, and a lower pile insertion part is provided at the lower end of the square tube, and the upper pile insertion part is inserted into the upper end of the lower pile, and a plurality of bolt holes are respectively provided around the upper pile insertion part and the lower pile insertion part, the lower end of the upper pile is provided with an upper annular groove, and the upper end of the lower pile is provided with a lower annular groove, and a plurality of limiting plates are respectively provided in the upper annular groove and the lower annular groove, and threaded holes are provided on the limiting plates, and the threaded holes and the bolt holes correspond to each other one by one, and lateral bolts are inserted in the bolt holes, and the lateral bolts pass through the bolt holes and are screwed into the corresponding threaded holes.

[0004] As a preferred embodiment of the above technical solution, a fixing plate is provided between the upper pile insertion portion and the lower pile insertion portion, the fixing plate is located inside the square tube, and the fixing plate is fixedly connected to the square tube on all sides.

[0005] As a preferred embodiment of the above technical solution, the square tube is composed of an upper tube and a lower tube connected together, the upper pile insertion portion is located at the upper end of the upper tube, and an upper docking flange is provided at the lower end of the upper tube, the lower pile insertion portion is located at the lower end of the lower tube, and a lower docking flange is provided at the upper end of the lower tube, and the upper docking flange and the lower docking flange are connected by a plurality of docking bolts.

[0006] As a preferred embodiment of the above technical solution, the interior of the upper docking flange and the interior of the lower docking flange are respectively fixedly connected to fixing plates.

[0007] As a preferred embodiment of the above technical solution, the upper pile insertion portion is provided with an upper guide opening whose inner diameter gradually decreases from top to bottom, and the lower pile insertion portion is provided with a lower guide opening whose inner diameter gradually decreases from bottom to top.

[0008] As a preferred embodiment of the above technical solution, recessed grooves are respectively provided around the upper pile insertion portion and around the lower pile insertion portion, and the bolt holes are respectively located in the recessed grooves.

[0009] As a preferred embodiment of the above technical solution, the sinks are respectively filled with adhesive layers, which completely wrap the corresponding lateral bolts.

[0010] The utility model has the beneficial effects that the prestressed square pile quick connector of the utility model can realize the quick connection of prestressed square piles. The connector has a simple structure, low cost, and convenient operation during the connection process. Dislocation is not easy to occur between the connected prestressed square piles, thereby ensuring the service life of the square piles. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of the utility model;

[0012] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0013] Figure 3 It is a schematic cross-sectional structure diagram of another implementation manner of the utility model. DETAILED DESCRIPTION

[0014] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0015] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0016] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0017] like Figure 1-2 As shown, the prestressed square pile quick connector includes a square tube 1, the upper end of the square tube 1 is provided with an upper pile insertion part 2, the upper pile insertion part 2 is for the lower end of the upper pile 3 to be inserted, the lower end of the square tube 1 is provided with a lower pile insertion part 4, the lower pile insertion part 4 is for the upper end of the lower pile 5 to be inserted, and the upper pile insertion part 2 and the lower pile insertion part 4 are respectively provided with a plurality of bolt holes 6, the lower end of the upper pile 3 is provided with an upper annular groove 7, the upper end of the lower pile 5 is provided with a lower annular groove 8, and the upper annular groove 7 and the lower annular groove 8 are respectively provided with a plurality of stop plates 9, the stop plates 9 are provided with threaded holes 10, the threaded holes 10 and the bolt holes 6 correspond one to one, and the bolt holes 6 are inserted with lateral bolts, which pass through the bolt holes 6 and are screwed into the corresponding threaded holes 10. When connecting the upper pile 3 and the lower pile 5, it is only necessary to put the stop plate 9 into the corresponding upper annular groove 7 or lower annular groove 8, and then insert the lower end of the upper pile 3 into the upper pile insertion part 2, and the upper end of the lower pile 5 into the lower pile insertion part 4. The lateral bolts are passed through the bolt holes 6 and then screwed into the corresponding threaded holes 10. The upper annular groove 7 and the lower annular groove 8 can be formed directly during the square pile manufacturing process or can be formed on the square pile using cutting equipment at the construction site.

[0018] Furthermore, a fixing plate 11 is provided between the upper pile insertion portion 2 and the lower pile insertion portion 4 . The fixing plate 11 is located inside the square tube 1 , and the fixing plate 11 is fixedly connected to the square tube 1 around its periphery.

[0019] Or, if Figure 3 As shown, the square tube 1 is formed by connecting an upper tube 12 and a lower tube 13, the upper pile insertion portion 2 is located at the upper end of the upper tube 12, the lower end of the upper tube 12 is provided with an upper docking flange 14, the lower pile insertion portion 4 is located at the lower end of the lower tube 13, the upper end of the lower tube 13 is provided with a lower docking flange 15, and the upper docking flange 14 and the lower docking flange 15 are connected by a plurality of docking bolts. The interior of the upper docking flange 14 and the interior of the lower docking flange 15 are respectively fixedly connected to the fixing plate 11.

[0020] Furthermore, the upper pile insertion portion 2 is provided with an upper guide opening 16 whose inner diameter gradually decreases from top to bottom, and the lower pile insertion portion 4 is provided with a lower guide opening 17 whose inner diameter gradually decreases from bottom to top. The upper guide opening 16 facilitates the lower end of the upper pile 3 to be inserted into the upper pile insertion portion 2. The lower guide opening 17 facilitates the upper end of the lower pile 5 to be inserted into the lower pile insertion portion 4.

[0021] Furthermore, the upper pile insertion part 2 and the lower pile insertion part 4 are respectively provided with sinking grooves 18, and the bolt holes 6 are respectively located in the sinking grooves 18. The sinking grooves 18 reduce the influence of the lateral bolts during the piling process.

[0022] Furthermore, the sinks 18 are filled with adhesive layers, which completely wrap the corresponding lateral bolts. After tightening the lateral bolts, resin glue is filled into the sinks 18, and the resin glue wraps the lateral bolts. After solidification, the resin glue plays a role in fixing the lateral bolts, preventing the lateral bolts from being loosened by the soil during the piling process, and protecting the lateral bolts for a long time during the use of the square piles.

[0023] It is worth mentioning that the technical features such as bolts involved in this utility model patent application should be regarded as prior art. The specific structure, working principle and possible control method and spatial layout method of these technical features can be selected by conventional methods in the field, and should not be regarded as the invention point of this utility model patent. This utility model patent will not be further elaborated.

[0024] The preferred specific embodiments of the utility model are described in detail above. It should be understood that ordinary technicians in this field can make many modifications and changes based on the concept of the utility model without creative work. Therefore, all technical solutions that can be obtained by technicians in this technical field through logical analysis, reasoning or limited experiments based on the concept of the utility model on the basis of the existing technology should be within the scope of protection determined by the claims.

Claims

1. Prestressed square pile quick connector, characterized in that: The utility model comprises a square tube, wherein an upper pile insertion part is provided at the upper end of the square tube, and the lower end of the upper pile is inserted into the upper pile insertion part, and a lower pile insertion part is provided at the lower end of the square tube, and the upper end of the lower pile is inserted into the lower pile insertion part, and a plurality of bolt holes are respectively provided around the upper pile insertion part and the lower pile insertion part, an upper annular groove is provided at the lower end of the upper pile, and a lower annular groove is provided at the upper end of the lower pile, and a plurality of limiting plates are respectively provided in the upper annular groove and the lower annular groove, and threaded holes are provided on the limiting plates, and the threaded holes and the bolt holes correspond to each other one by one, and lateral bolts are inserted into the bolt holes, and the lateral bolts pass through the bolt holes and are screwed into the corresponding threaded holes.

2. The prestressed square pile quick connector according to claim 1, characterized in that: A fixing plate is provided between the upper pile insertion part and the lower pile insertion part. The fixing plate is located inside the square tube, and the fixing plate is fixedly connected to the square tube around its periphery.

3. The prestressed square pile quick connector according to claim 1, characterized in that: The square tube is formed by connecting an upper tube and a lower tube, the upper pile insertion portion is located at the upper end of the upper tube, the lower end of the upper tube is provided with an upper docking flange, the lower pile insertion portion is located at the lower end of the lower tube, the upper end of the lower tube is provided with a lower docking flange, and the upper docking flange and the lower docking flange are connected by a plurality of docking bolts.

4. The prestressed square pile quick connector according to claim 3, characterized in that: The interior of the upper butt joint flange and the interior of the lower butt joint flange are respectively fixedly connected to the fixing plates.

5. The prestressed square pile quick connector according to claim 2 or 4, characterized in that: The upper pile insertion portion is provided with an upper guide opening whose inner diameter gradually decreases from top to bottom, and the lower pile insertion portion is provided with a lower guide opening whose inner diameter gradually decreases from bottom to top.

6. The prestressed square pile quick connector according to claim 5, characterized in that: The upper pile insertion portion and the lower pile insertion portion are respectively provided with sinking grooves, and the bolt holes are respectively located in the sinking grooves.

7. The prestressed square pile quick connector according to claim 6, characterized in that: The sinks are respectively filled with adhesive layers, which completely wrap the corresponding lateral bolts.

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