A device for mechanical connection of prefabricated square piles

By designing a mechanical connection device for precast square piles, and utilizing components such as handheld frames, bidirectional screw rods, and fasteners, the problem of difficulty in controlling the connection quality of static pressure square piles on the construction site was solved. This achieved stable connection and adaptive adjustment between the end plate and the square pile, improving construction quality and efficiency.

CN224351207UActive Publication Date: 2026-06-12CHINA CONSTR EIGHT ENG DIV CORP LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA CONSTR EIGHT ENG DIV CORP LTD
Filing Date
2025-06-25
Publication Date
2026-06-12

AI Technical Summary

Technical Problem

The quality of mechanical connections for static pressure square piles at construction sites is difficult to control, especially the quality of end plate connections, which is greatly affected by the skill level of the workers and is prone to quality problems and rework.

Method used

A mechanical connection device for precast square piles was designed, including a hand-held frame, a two-way screw rod, a protruding rod, an extension rod, and a fixing component. The device achieves stable clamping of the end plate and the square pile through the positioning component and the fixing screw, and can adapt to the connection of square piles of different specifications.

Benefits of technology

It improved construction quality, prevented end plate skewing, adapted to the connection requirements of square piles of different specifications, and enhanced construction efficiency and quality stability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a connecting device belongs to construction auxiliary tool technical field, specifically a prefabricated square pile mechanical connection's device, including hand -held frame, the one side fixed connection of hand -held frame has handle, still include the two -way screw rod of rotation connection in the inner wall of hand -held frame, the one side rotation connection of hand -held frame has the knob, the one end of knob is with two -way screw rod coaxial fixed, two extension rods of sliding connection in the inner wall of hand -held frame, two extension rods all are with two -way screw rod screw joint, the extension rod of sliding connection in the inner wall of extension rod, the one end rotation connection of extension rod has the fixed frame, be provided with the fixed part in the fixed frame, the utility model improves square pile connection construction quality, effectively solves the end plate connection construction restraint factor, improves construction quality, solves the problem that square pile end plate connection is easy to produce construction quality and is not good.
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Description

Technical Field

[0001] This utility model relates to the field of construction auxiliary tools technology, and in particular to a device for mechanical connection of precast square piles. Background Technology

[0002] Currently, on construction sites, mechanical connections for static pressure square piles typically employ spring clip connections or end plate connections. However, the quality of these mechanical connections is often difficult to control, especially end plate connections. The construction quality is heavily influenced by the quality of the square piles and the skill level of the workers, which can easily lead to quality problems and subsequent waste of manpower for rework and rectification. Therefore, a prefabricated square pile mechanical connection device is proposed to solve the above problems. Utility Model Content

[0003] To address the aforementioned technical problems, this utility model proposes a device for mechanical connection of precast square piles, which improves the construction quality of square pile connection, effectively solves the constraints of end plate connection construction, and enhances construction quality.

[0004] The technical solution to achieve the purpose of this utility model is: a device for mechanical connection of precast square piles, including a hand-held frame, a handle fixedly connected to one side of the hand-held frame, and further comprising;

[0005] A bidirectional lead screw is rotatably connected to the inner wall of the handheld frame. A knob is rotatably connected to one side of the handheld frame, and one end of the knob is fixed coaxially with the bidirectional lead screw.

[0006] Two extension rods are slidably connected to the inner wall of the handheld frame, and both extension rods are screwed to a bidirectional lead screw;

[0007] An extension rod is slidably connected to the inner wall of the extension rod, and one end of the extension rod is rotatably connected to a fixing frame, which contains a fixing component.

[0008] In some embodiments, the surface of the extension rod is provided with a plurality of positioning holes, which are equidistantly distributed.

[0009] In some embodiments, a receiving hole is provided on one side of the extension rod, a positioning spring is fixedly connected to the inner wall of the receiving hole, a positioning post is slidably connected to the inner wall of the receiving hole, and one end of the positioning post is fixedly connected to the bottom end of the positioning spring.

[0010] In some embodiments, the fastener includes a sliding column that is slidably connected to the inner bottom wall of the fixing frame, a fixing plate is fixedly connected to one side of the sliding column, and a fixing screw is rotatably connected to the lower surface of the fixing plate, the fixing screw being screwed to the fixing frame.

[0011] Compared with existing technologies, the significant advantages of this invention are:

[0012] This utility model, through the setting of positioning components, uses a fixing screw to drive the fixing plate to clamp the end plate during use, which helps the end plate to fit better with the precast square pile, prevents the end plate from tilting, and ensures construction quality. At the same time, the use of bidirectional screw rods can adjust the distance between the two protruding rods, adapting to the connection construction of square piles of different specifications, making it more practical.

[0013] This solves the problem of poor construction quality that easily occurs when connecting square pile end plates. Attached Figure Description

[0014] The present invention will be further explained below with reference to the accompanying drawings and embodiments:

[0015] Figure 1 This is a schematic diagram of the main structure provided in one embodiment of the present invention;

[0016] Figure 2 This is a schematic diagram of the handheld holder (sectional view) structure provided in one embodiment of the present invention;

[0017] Figure 3 This is a schematic diagram of the extension rod (sectional view) structure provided in one embodiment of the present invention;

[0018] Figure 4 This is a schematic diagram of the fastener structure provided in one embodiment of the present invention.

[0019] Explanation of reference numerals in the attached figures:

[0020] 1. Handheld bracket; 2. Handle; 3. Two-way lead screw; 4. Knob; 5. Extension rod; 6. Extension rod; 7. Fixing bracket; 8. Fixing component; 801. Sliding column; 802. Fixing plate; 803. Fixing screw; 9. Positioning hole; 10. Positioning spring; 11. Positioning post. Detailed Implementation

[0021] The present invention will now be described in detail, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0022] This utility model provides an improved device for mechanical connection of precast square piles. The technical solution of this utility model is as follows:

[0023] like Figure 1 As shown, a device for mechanical connection of precast square piles includes a handheld frame 1, which is hollow inside. A handle 2 is fixedly connected to one side of the handheld frame 1. The device also includes:

[0024] A bidirectional lead screw 3 is rotatably connected to the inner wall of the handheld frame 1. A knob 4 is rotatably connected to one side of the handheld frame 1. One end of the knob 4 is coaxially fixed with the bidirectional lead screw 3. The user can rotate the bidirectional lead screw 3 by using the knob 4.

[0025] Two extension rods 5 are slidably connected to the inner wall of the handheld frame 1. Both extension rods 5 are screwed to the bidirectional lead screw 3. The two extension rods 5 are respectively screwed to the two threads of the bidirectional lead screw 3 in different directions.

[0026] An extension rod 6 is slidably connected to the inner wall of the extension rod 5. One end of the extension rod 6 is rotatably connected to a fixed frame 7. The fixed frame 7 and the extension rod 6 rotate through a damping shaft, which can achieve stepless hovering. A fixing component 8 is provided inside the fixed frame 7.

[0027] like Figure 2 and Figure 3 As shown, in one embodiment, the surface of the extension rod 5 is provided with a plurality of positioning holes 9, which are equidistantly distributed;

[0028] In one embodiment, a receiving hole is provided on one side of the extension rod 6. A positioning spring 10 is fixedly connected to the inner wall of the receiving hole, and a positioning post 11 is slidably connected to the inner wall of the receiving hole. The outer diameter of the receiving hole and the positioning post 11 is adapted to the diameter of the positioning hole 9. One end of the positioning post 11 is fixedly connected to the bottom end of the positioning spring 10. The user can adjust the position of the extension rod 5 and the extension rod 6 by pressing the positioning post 11 for convenient use.

[0029] like Figure 4 As shown, in one embodiment, the fixing member 8 includes a sliding column 801 that is slidably connected to the inner bottom wall of the fixing frame 7. A fixing plate 802 is fixedly connected to one side of the sliding column 801. A fixing screw 803 is rotatably connected to the lower surface of the fixing plate 802. The fixing screw 803 is screwed to the fixing frame 7. By rotating the fixing screw 803, the fixing screw 803 drives the fixing plate 802 to gradually move closer to the end plate. Finally, the fixing plate 802 and the inner top wall of the fixing frame 7 clamp the end plate. After the end plate is attached to the square pile, the knob 4 can be rotated again to rotate the bidirectional screw 3 to realize the connection of the two end plates.

[0030] The specific working method is as follows: When the precast square pile mechanical connection device is used, firstly, the user rotates the knob 4 to drive the double-acting screw 3 to rotate, so that the two extension rods 5 are separated to a position that matches the size of the square pile. Then, the end plate is connected to the fixing frame 7. Specifically, the fixing screw 803 is rotated, and the fixing screw 803 drives the fixing plate 802 to gradually move closer to the end plate. Finally, the fixing plate 802 and the inner top wall of the fixing frame 7 clamp the end plate. After completing the above steps, the position of the fixing frame 7 is adjusted according to the needs, such as rotating the entire fixing frame 7 to adjust the angle. After the adjustment is completed, after the end plate is attached to the square pile, the knob 4 can be rotated again to rotate the double-acting screw 3 to connect the two end plates.

[0031] The technical means disclosed in this utility model are not limited to those described above, but also include technical solutions composed of equivalent substitutions of the above technical features. Matters not covered in this utility model are common knowledge to those skilled in the art.

Claims

1. A device for mechanical connection of precast square piles, comprising a handheld frame (1), characterized in that: The handheld device (1) is fixedly connected to a handle (2) on one side, and also includes; A two-way lead screw (3) is rotatably connected to the inner wall of the handheld frame (1). A knob (4) is rotatably connected to one side of the handheld frame (1). One end of the knob (4) is coaxially fixed with the two-way lead screw (3). Two extension rods (5) are slidably connected to the inner wall of the handheld frame (1), and both extension rods (5) are screwed to the bidirectional lead screw (3); An extension rod (6) is slidably connected to the inner wall of the extension rod (5). One end of the extension rod (6) is rotatably connected to a fixing frame (7), and a fixing member (8) is provided inside the fixing frame (7).

2. The device for mechanical connection of precast square piles according to claim 1, characterized in that: The surface of the extension rod (5) is provided with a plurality of positioning holes (9), and the plurality of positioning holes (9) are equidistantly distributed.

3. The device for mechanical connection of precast square piles according to claim 1, characterized in that: The extension rod (6) has a receiving hole on one side. A positioning spring (10) is fixedly connected to the inner wall of the receiving hole. A positioning post (11) is slidably connected to the inner wall of the receiving hole. One end of the positioning post (11) is fixedly connected to the bottom end of the positioning spring (10).

4. The device for mechanical connection of precast square piles according to claim 1, characterized in that: The fixing member (8) includes a sliding column (801) that is slidably connected to the inner bottom wall of the fixing frame (7). A fixing plate (802) is fixedly connected to one side of the sliding column (801). A fixing screw (803) is rotatably connected to the lower surface of the fixing plate (802). The fixing screw (803) is screwed to the fixing frame (7).