Adjustable pile mouth clamping device for pipe pile construction

Abstract

The utility model discloses a kind of adjustable pile mouth clamping devices for pipe pile construction, including fixed pipe and extruded pipe, the extruded pipe is externally provided in fixed pipe, fixed pipe is divided into two by two first half pipe, the outer ring surface of first half pipe is equipped with multiple positioning ports of annular structure distribution, clamping plate is equipped in positioning port, one end of clamping plate is extended to the inside of fixed pipe, the other end is set to outside, and first flow guide part is inclinedly equipped, the opening end surface of extruded pipe one end forms the second flow guide part of arc structure.The utility model is simple in structure, rotation motion is converted into axial movement using screw transmission, then axial movement is converted into radial extrusion, so as to realize the opening and closing and locking of clamping plate, to adapt and clamp different diameter pipe pile, and its split design greatly facilitates installation, disassembly and maintenance process.

Description

Technical Field

[0001] This utility model relates to the field of pipe pile clamping technology, specifically to an adjustable pile mouth clamping device for pipe pile construction. Background Technology

[0002] Pipe piles are prefabricated hollow cylindrical concrete components, usually equipped with prestressed steel bars, and are mainly used for foundation treatment in construction, bridge, port and other engineering projects.

[0003] Currently, clamping devices are used during the installation of pipe piles. However, the adaptability of these devices is poor. They can generally only clamp the corresponding pipe piles. If the diameter of the pipe pile changes, it will be impossible to clamp it. Furthermore, current clamping devices are generally designed as a single unit. Damage to any part of the device may render it unusable or difficult to replace, affecting the overall performance. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide an adjustable pile mouth clamping device for pipe pile construction, which can make the clamping plate move inward by squeezing inward, thereby clamping pipe piles of different diameters, so as to solve the problems mentioned in the background art.

[0005] This utility model is achieved through the following technical solution: an adjustable pile mouth clamping device for pipe pile construction, comprising a fixed pipe and a squeezing pipe, wherein the squeezing pipe is sleeved on the outside of the fixed pipe, the fixed pipe is divided into two parts consisting of two first half-pipes, each of the first half-pipes having multiple positioning ports arranged in a ring structure on its outer surface, each positioning port having a clamping plate, one end of each clamping plate extending into the interior of the fixed pipe, the other end of each clamping plate being set to the outside, and each clamping plate having a first guide portion inclinedly, and the opening end face of one end of the squeezing pipe forming a second guide portion with an arc-shaped structure.

[0006] As a preferred technical solution, the extrusion tube is divided into two halves, each half of which is bent outward to form a fixing part. Each fixing part has a fixing hole, and the fixing holes on adjacent fixing parts are arranged opposite each other and each has a bolt inserted into them. One end of each bolt is threaded with a nut that presses the fixing parts together to fix them.

[0007] As a preferred technical solution, one of the first half tubes has multiple first positioning grooves on its end face, and the other first half tube has a first positioning part protruding from its end face opposite to the first positioning groove, and the first positioning part is inserted into the first positioning groove.

[0008] As a preferred technical solution, one of the second half tubes has multiple second positioning grooves on its end face, and the other second half tube has a second positioning part protruding from its end face opposite the second positioning groove, and the second positioning part is inserted into the second positioning groove.

[0009] As a preferred technical solution, a fixing frame is installed on the outer side of the first half-tube, and the fixing frame is provided with multiple through holes for connection with the hoisting mechanism.

[0010] As a preferred technical solution, the clamping plate has anti-slip textures on one end face inside the fixing tube.

[0011] As a preferred technical solution, both the fixed tube and the extruded tube are made of metal materials.

[0012] As a preferred technical solution, the outer ring surface of the fixed tube is provided with external threads, and the inner ring surface of the extrusion tube is provided with internal threads. The extrusion tube is connected to the external threads on the fixed tube through the engagement of the internal threads.

[0013] The beneficial effects of this utility model are as follows: This utility model has a simple structure. The upward rotating extrusion tube can extrude the clamping plate, allowing the clamping plate to move inward and clamp and fix pipe piles of different diameters, increasing adaptability. The fixing tube is composed of two first half-tubes, which can be fitted onto the pipe piles on the left and right, while the extrusion tube is composed of two second half-tubes, which can be fitted onto the fixing tubes on the left and right, facilitating installation. Furthermore, they can be separated independently, allowing for independent replacement of the first half-tubes, second half-tubes, and clamping plate, which facilitates operation and reduces costs. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of this utility model after disassembling any of the first and second half-tubes;

[0017] Figure 3 This is a schematic diagram of the structure of the fixing tube of this utility model;

[0018] Figure 4 This is a schematic diagram of the extrusion tube of this utility model.

[0019] Among them, 1. First half-tube; 2. Second half-tube; 3. Clamping plate; 4. First guide section; 5. Anti-slip texture; 6. Fixing section; 7. Fixing frame; 8. Second guide section; 9. First positioning section; 10. Second positioning section; 11. Positioning port. Detailed Implementation

[0020] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0021] All features disclosed in this specification, or all steps in all disclosed methods or processes, may be combined in any way, except for mutually exclusive features and / or steps.

[0022] Any feature disclosed in this specification (including any appended claims, abstract, and drawings) may be replaced by other equivalent or similar features for a similar purpose, unless specifically stated otherwise. That is, unless specifically stated otherwise, each feature is merely one example of a series of equivalent or similar features.

[0023] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, an adjustable pile mouth clamping device for pipe pile construction according to the present invention includes a fixed pipe and a squeezing pipe. The squeezing pipe is sleeved on the outside of the fixed pipe. The fixed pipe is divided into two parts, consisting of two first half-pipes 1. The outer surface of each first half-pipe 1 is provided with multiple positioning ports 11 arranged in a ring structure. Each positioning port 11 is provided with a clamping plate 3. One end of each clamping plate 3 extends into the interior of the fixed pipe, and the other end is set to the outside. Each clamping plate 3 is inclined and provided with a first guide portion 4. The open end face of one end of the squeezing pipe forms a second guide portion 8 with an arc structure.

[0024] In this embodiment, the extrusion tube is divided into two parts, consisting of two second half tubes 2. Both ends of the second half tube 2 are bent outward to form a fixing part 6. Each fixing part 6 is provided with a fixing hole. The fixing holes on adjacent fixing parts 6 are arranged opposite to each other and each is inserted with a bolt. One end of each bolt is threaded with a nut that presses the fixing parts 6 together to fix them.

[0025] The device secures the extrusion tube with nuts and bolts while simultaneously pressing the first half of the tube inward, preventing its separation.

[0026] In this embodiment, one of the first half tubes 1 has a plurality of first positioning grooves on its end face, and the other half tube 1 has a first positioning part 9 protruding from its end face opposite to the first positioning groove. The first positioning parts 9 are all inserted into the first positioning groove.

[0027] In this embodiment, one of the second half tubes 2 has a plurality of second positioning grooves on its end face, and the other second half tube 2 has a second positioning part 10 protruding from its end face opposite to the second positioning groove. The second positioning part 10 is inserted into the second positioning groove.

[0028] In this embodiment, a fixing frame 7 is installed on the outer side of the first half-tube 1, and the fixing frame 7 is provided with multiple through holes that are connected to the hoisting mechanism.

[0029] In this embodiment, the clamping plate 3 is provided with anti-slip texture 5 on one end face inside the fixed tube, so that the anti-slip texture can contact the outer wall surface of the pipe pile, increasing the friction during subsequent clamping.

[0030] In this embodiment, both the fixing tube and the extrusion tube are made of metal, which increases their robustness and service life.

[0031] In this embodiment, the outer ring surface of the fixed tube is provided with an external thread, and the inner ring surface of the extrusion tube is provided with an internal thread. The extrusion tube is connected to the external thread on the fixed tube through the internal thread.

[0032] Working principle:

[0033] It is mainly composed of a split-type fixed tube (composed of two first half tubes 1) and a split-type extrusion tube (composed of two second half tubes 2).

[0034] During installation, the two first half-tubes 1 are first joined together from the left and right sides of the pipe pile and fitted onto the outside of the pipe pile. The first positioning part 9 on the end face of the first half-tube 1 is inserted into the first positioning groove to achieve quick alignment and initial positioning of the two first half-tubes.

[0035] Subsequently, the two second half tubes 2 are joined together from the left and right sides and fitted onto the outside of the already assembled fixed tube. The two second half tubes are aligned by the insertion and engagement of the second positioning part 10 on the end face of the second half tube 2 with the second positioning groove. Then, bolts and nuts are passed through the fixing holes on the fixing parts 6 at both ends of the second half tube 2 and tightened to firmly fix the two second half tubes 2 together, thereby forming a complete extruded tube that fits onto the outside of the fixed tube.

[0036] The outer ring of the fixed tube is provided with external threads, and the inner ring of the extrusion tube is provided with internal threads. The two are connected by thread engagement. When it is necessary to clamp the pipe pile, the extrusion tube (the second half-pipe assembly) is rotated by tools or manpower.

[0037] Since the extrusion tube is connected to an external hoisting mechanism or fixed point through the fixed frame 7, its axial movement is restricted. Therefore, when rotating, the extrusion tube will move axially relative to the fixed tube. Specifically, by designing the thread direction, when the extrusion tube is rotated in one direction (e.g., clockwise), the extrusion tube will move upward along the fixed tube.

[0038] As the extrusion tube moves upward, the arc-shaped second guide section 8 formed at its end will gradually approach and contact the first guide section 4 inclined at the outer end of the clamping plate 3.

[0039] As the extrusion tube continues to rotate upward, the arc surface of the second guide section 8 and the inclined surface of the first guide section 4 slide and squeeze relative to each other. This interaction of the inclined surfaces transforms the axial upward movement of the extrusion tube into a radial inward thrust on the clamping plate 3.

[0040] Under the action of thrust, multiple clamping plates 3 distributed in a ring overcome the frictional force between themselves and the positioning port 11 and move synchronously toward the central axis of the fixed pipe (i.e. toward the surface of the pipe pile).

[0041] When the anti-slip textures 5 on the inner end faces of all clamping plates 3 are in close contact with and press against the outer wall of the pipe pile, the rotation and extrusion of the pipe is stopped, thereby making the clamping plates 3 generate a stable and uniform radial clamping force on the pipe pile, thus completing the fastening of the pipe pile.

[0042] By controlling the rotation angle of the extrusion tube, the displacement of the clamping plate 3 moving inward can be precisely adjusted. Therefore, for pipe piles with different outer diameters, the clamping plate 3 can be adapted to the diameter change simply by adjusting the position of the extrusion tube, thus achieving adjustable clamping and greatly improving the versatility of the device.

[0043] When it is necessary to loosen the pipe pile, simply rotate the squeezing pipe in the opposite direction to move it downwards, which will release the radial compression on the clamping plate 3, and the clamping plate 3 can then be directly removed outwards through the positioning port. If a component (such as the first half-pipe 1, the second half-pipe 2, or a clamping plate 3) is damaged, simply remove the corresponding bolts and nuts to separate the device for independent replacement, which is convenient and cost-effective.

[0044] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions conceived without inventive effort should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope defined in the claims.

Claims

1. An adjustable pile head clamping device for pipe pile construction, characterized in that: It includes a fixed tube and a squeezing tube. The squeezing tube is sleeved on the outside of the fixed tube. The fixed tube is divided into two parts, consisting of two first half tubes (1). The outer surface of each first half tube (1) is provided with multiple positioning ports (11) arranged in a ring structure. Each positioning port (11) is provided with a clamping plate (3). One end of each clamping plate (3) extends into the interior of the fixed tube, and the other end is set to the outside. Each clamping plate (3) is inclined and provided with a first guide part (4). The open end face of one end of the squeezing tube forms a second guide part (8) with an arc structure.

2. The adjustable pile head clamping device for pipe pile construction according to claim 1, characterized in that: The extrusion tube is divided into two parts, consisting of two second half tubes (2). Both ends of the second half tube (2) are bent outward to form a fixing part (6). The fixing part (6) is provided with a fixing hole. The fixing holes on adjacent fixing parts (6) are arranged opposite to each other and are all inserted with bolts. One end of the bolt is threaded with a nut that presses the fixing parts (6) together to fix them.

3. The adjustable pile head clamping device for pipe pile construction according to claim 2, characterized in that: One of the first half tubes (1) has multiple first positioning grooves on its end face, and the other half tube (1) has a first positioning part (9) protruding from its end face opposite to the first positioning groove. The first positioning parts (9) are all inserted into the first positioning groove.

4. The adjustable pile head clamping device for pipe pile construction according to claim 2, characterized in that: One of the second half tubes (2) has multiple second positioning grooves on its end face, and the other second half tube (2) has a second positioning part (10) protruding from its end face opposite the second positioning groove. The second positioning parts (10) are all inserted into the second positioning groove.

5. The adjustable pile head clamping device for pipe pile construction according to claim 1, characterized in that: A fixing frame (7) is installed on the outer side of the first half-pipe (1), and the fixing frame (7) is provided with multiple through holes for connection with the hoisting mechanism.

6. The adjustable pile head clamping device for pipe pile construction according to claim 1, characterized in that: Anti-slip texture (5) is provided on one end face of the clamping plate (3) located inside the fixing tube.

7. The adjustable pile head clamping device for pipe pile construction according to claim 1, characterized in that: Both the fixed tube and the extruded tube are made of metal.

8. The adjustable pile head clamping device for pipe pile construction according to claim 1, characterized in that: The outer ring of the fixed tube has an external thread, and the inner ring of the extrusion tube has an internal thread. The extrusion tube is connected to the external thread on the fixed tube through the engagement of the internal thread.

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