Square pile quick connecting piece

Abstract

The utility model discloses a square pile quick connecting piece which comprises an upper connecting pipe, a lower connecting pipe and a connecting column, an upper internal thread part and a lower internal thread part are arranged in the upper connecting pipe, a baffle is fixedly connected to the upper end of the lower connecting pipe, a center hole is formed in the baffle, a middle internal thread part is arranged at the lower end of the interior of the lower connecting pipe, and a limiting plate is fixedly connected to the lower end of the connecting column. The limiting plate is located in the lower connecting pipe, the upper end of the connecting column penetrates out of the center hole and then is inserted into the upper connecting pipe from the lower end of the upper connecting pipe, an upper external thread matched with the lower internal thread part is arranged at the upper end of the connecting column, and a plurality of clamping planes arranged in pairs are evenly arranged on the circumferential face of the connecting column at intervals. And each pair of clamping planes comprises two clamping planes which are oppositely arranged. The quick connecting piece for the square piles comprises few parts, each connecting piece only comprises two independent and separated parts when the square piles are connected on site, connection of upper and lower pile main reinforcements can be completed by rotating a small number of parts, and operation is easy and convenient.

Description

Technical Field

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

[0002] Concrete square piles are a type of precast pile, which are produced in a factory by means of centrifugation, steam curing, etc. When needed, they are pulled to the construction site for pile driving. For the convenience of production, concrete square piles have specific standard lengths during production. When a single square pile cannot meet the requirements of the construction site, two or more square piles need to be connected in sequence. Currently, existing square piles are connected by welding. The welding process is cumbersome and complex, the operating space is limited, and the welding quality affects the connection quality of the square piles. Connecting the main reinforcement bars on the square piles with connectors can also achieve the connection of square piles. However, the existing square pile connectors have numerous structural components and the connection process is cumbersome and complex. Content of the Utility Model

[0003] To solve the above technical problems, the technical solution adopted by the utility model is: a quick connector for square piles, including an upper connecting pipe, a lower connecting pipe, and a connecting column. An upper internal thread portion and a lower internal thread portion are provided inside the upper connecting pipe. A baffle is fixedly connected to the upper end of the lower connecting pipe. A central hole is provided on the baffle, and the diameter of the central hole is smaller than the inner diameter of the lower connecting pipe. A middle internal thread portion is provided at the lower end inside the lower connecting pipe. The diameter of the connecting column is smaller than the diameter of the central hole. A limiting plate is fixedly connected to the lower end of the connecting column. The diameter of the limiting plate is smaller than the inner diameter of the lower connecting pipe and larger than the diameter of the central hole. The limiting plate is located inside the lower connecting pipe. The upper end of the connecting column passes through the central hole and is inserted into the upper connecting pipe from the lower end of the upper connecting pipe. An upper external thread that mates with the lower internal thread portion is provided at the upper end of the connecting column. A number of pairs of clamping planes are evenly spaced on the circumferential surface of the connecting column. Each pair of clamping planes includes two oppositely arranged clamping planes.

[0004] As a preference of the above technical solution, a connecting sleeve is inserted into the lower end inside the lower connecting pipe. The connecting sleeve has a lower external thread portion that mates with the middle internal thread portion, and a bottom internal thread portion is provided inside the connecting sleeve.

[0005] As a preference of the above technical solution, an upper nut is fixedly connected to the circumferential surface of the upper connecting pipe, and a lower nut is fixedly connected to the circumferential surface of the lower connecting pipe.

[0006] As a preference of the above technical solution, guiding flared openings are respectively provided at the upper and lower ends of the upper connecting pipe, and a guiding flared opening is provided at the lower end of the lower connecting pipe.

[0007] As a preference of the above technical solution, clamping grooves are respectively provided on both sides of the lower end of the connecting sleeve.

[0008] Preferably, as the above technical solution, the upper connecting pipe, the lower connecting pipe and the connecting column are respectively made of austenitic stainless steel.

[0009] The beneficial effects of the present utility model are as follows: The quick connector for square piles of the present utility model includes few components, and each connector only includes two independent and separated components when connecting square piles on site. By rotating a small number of components, the connection of the main reinforcement bars of the upper and lower square piles can be completed, and the operation is simple and convenient. Description of the Drawings

[0010] Figure 1 is a schematic structural diagram of the present utility model. Detailed Embodiments

[0011] Next, the technical solution of the present utility model will be clearly and completely described in conjunction with the drawings. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0012] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model 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 a limitation to the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0013] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", "connected" 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 directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0014] Such as Figure 1As shown in the figure, the quick connector for square piles includes an upper connecting pipe 1, a lower connecting pipe 2, and a connecting column 3. An upper internal thread portion 4 and a lower internal thread portion 5 are provided inside the upper connecting pipe 1. A baffle 6 is fixedly connected to the upper end of the lower connecting pipe 2. A central hole 7 is provided on the baffle 6, and the diameter of the central hole 7 is smaller than the inner diameter of the lower connecting pipe 2. A middle internal thread portion 8 is provided at the lower end inside the lower connecting pipe 2. The diameter of the connecting column 3 is smaller than the diameter of the central hole 7. A limiting plate 9 is fixedly connected to the lower end of the connecting column 3. The diameter of the limiting plate 9 is smaller than the inner diameter of the lower connecting pipe 2, and the diameter of the limiting plate 9 is larger than the diameter of the central hole 7. The limiting plate 9 is located inside the lower connecting pipe 2. The upper end of the connecting column 3 passes through the central hole 7 and is inserted into the upper connecting pipe 1 from the lower end of the upper connecting pipe 1. An upper external thread that matches the lower internal thread portion 5 is provided at the upper end of the connecting column 3. A plurality of pairs of clamping planes 10 are evenly spaced on the circumferential surface of the connecting column 3. Each pair of clamping planes 10 includes two oppositely arranged clamping planes 10.

[0015] Further, a connecting sleeve 11 is inserted into the lower end inside the lower connecting pipe 2. The connecting sleeve 11 has a lower external thread portion 12 that matches the middle internal thread portion 8, and a bottom internal thread portion 13 is provided inside the connecting sleeve 11. First, the connecting column 3 is inserted into the lower connecting pipe 2 from the lower end of the lower connecting pipe 2. The upper end of the connecting column 3 passes through the central hole 7, and the limiting plate 9 is restricted by the baffle 6 and remains inside the lower connecting pipe 2. Then, the connecting sleeve 11 is inserted into the lower connecting pipe 2 from the lower end of the lower connecting pipe 2. Through the thread fit between the lower external thread portion 12 and the middle internal thread portion 8, the connecting sleeve 11 is fixed inside the lower connecting pipe 2. In this way, the connecting column 3 will not be separated from the lower connecting pipe 2 either. When connecting square piles, the main reinforcement bars with pre-processed threads on the next square pile are inserted into the connecting sleeve 11 and are thread-connected to the connecting sleeve 11. The main reinforcement bars with pre-processed threads on the previous square pile are inserted into the upper end of the upper connecting pipe 1 and are thread-connected to the upper connecting pipe 1. Then, the connecting column 3 is moved, and the upper end of the connecting column 3 is inserted into the lower end of the upper connecting pipe 1. The connecting column 3 is rotated so that the connecting column 3 is thread-connected to the upper connecting pipe 1.

[0016] Further, an upper nut 14 is fixedly connected to the circumferential surface of the upper connecting pipe 1, and a lower nut 15 is fixedly connected to the circumferential surface of the lower connecting pipe 2. This facilitates using tools to rotate the upper connecting pipe 1 and the lower connecting pipe 2.

[0017] Further, guiding flared openings 16 are respectively provided at the upper and lower ends of the upper connecting pipe 1, and a guiding flared opening 16 is provided at the lower end of the lower connecting pipe 2. The guiding flared openings 16 play a guiding role during insertion and facilitate alignment.

[0018] Further, clamping grooves 17 are respectively provided on both sides at the lower end of the connecting sleeve 11. It is convenient to use tools to be inserted into the clamping grooves 17 to drive the connecting sleeve 11 to rotate, so as to thread-connect the connecting sleeve 11 inside the lower end of the upper connecting pipe 1.

[0019] Furthermore, the upper connecting pipe 1, the lower connecting pipe 2, and the connecting column 3 are respectively made of austenitic stainless steel. Austenitic stainless steel is corrosion-resistant and has high structural strength.

[0020] It is worth mentioning that the technical features such as the square pile involved in the patent application of the present utility model should be regarded as the prior art. For the specific structures, working principles, possible control methods, and spatial arrangement methods of these technical features, conventional selections in the art can be adopted, and they should not be regarded as the inventive points of the patent of the present utility model. The patent of the present utility model will not be further specifically elaborated.

[0021] The preferred specific embodiments of the present utility model have been described in detail above. It should be understood that those of ordinary skill in the art can make many modifications and variations based on the concept of the present utility model without creative labor. Therefore, all technical solutions that can be obtained by those skilled in the art in the technical field based on the concept of the present utility model through logical analysis, reasoning, or limited experiments on the basis of the prior art should fall within the protection scope determined by the claims.

Claims

1. Square pile quick connector, characterized in that: The threaded portion is threaded with a thread of one or more pliers, the threaded portion being threaded with a thread of one or more pliers, the threaded portion being threaded with a thread of one or more pliers, the threaded portion being threaded with a thread of one or more pliers, the threaded portion being threaded with a thread of one or more pliers, the threaded portion being threaded with a thread of one or more pliers, the threaded portion being threaded with a thread of one or more pliers, the threaded portion being threaded with a thread of one or more pliers.

2. The square pile quick connector according to claim 1, characterized in that: A connecting sleeve is inserted into the lower end of the lower connecting pipe. The connecting sleeve has a lower external threaded portion matched with the middle internal threaded portion, and a bottom internal threaded portion is arranged inside the connecting sleeve.

3. The square pile quick connector according to claim 1, characterized in that: An upper nut is fixedly connected to the circumferential surface of the upper connecting pipe, and a lower nut is fixedly connected to the circumferential surface of the lower connecting pipe.

4. The square pile quick connector according to claim 1, characterized in that: The upper and lower ends of the upper connecting pipe are respectively provided with guide flares, and the lower end of the lower connecting pipe is provided with a guide flare.

5. The square pile quick connector according to claim 2, characterized in that: Both sides of the lower end of the connecting sleeve are respectively provided with clamping grooves.

6. The square pile quick connector according to claim 1, characterized in that: The upper connecting pipe, the lower connecting pipe and the connecting column are respectively made of austenitic stainless steel.

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