Simple pile pressing and clamping device

Abstract

This utility model discloses a simplified pile clamping device, including a pile driving mechanism and a pile clamping mechanism. The pile driving mechanism includes a pile driving frame mounted on the body of a static press and two sets of pile driving cylinders vertically mounted on the pile driving frame. The top of the pile clamping mechanism is connected to the telescopic ends of the two sets of pile driving cylinders. It also includes a guiding mechanism, which includes a guide rod and a guide sleeve sleeved outside the guide rod. The guide sleeve extends vertically through and is fixed to the pile driving frame. A copper sleeve, outside the guide rod, is installed at the upper and lower ends of the inner cavity of the guide sleeve and is pressed tightly by a pressure cap. The guide rod and the inner wall of the copper sleeve can slide in contact. The lower end of the guide rod is detachably connected to the pile clamping mechanism. When the telescopic end of the pile driving cylinder drives the pile clamping mechanism to rise and fall, the guide rod can limit its horizontal movement. This utility model has advantages such as compact structure, small space occupation, convenient assembly and disassembly, and can ensure the verticality and stability of the precast pile during the pile driving process. It is particularly suitable for construction sites with limited space.

Description

Technical Field

[0001] This utility model relates to the field of pile driving equipment technology, specifically to a simple pile clamping device. Background Technology

[0002] In building construction, the driving of precast piles is a crucial foundation construction procedure. Existing pile driving and clamping mechanisms are complex in structure, bulky, and space-consuming, making them difficult to implement in space-constrained construction sites. Furthermore, the complex structure makes disassembly and assembly cumbersome, and during construction, horizontal deviation is prone to occur when the clamping mechanism is raised and lowered, making it difficult to control the verticality of the precast piles and affecting construction quality. In addition, traditional guiding structures suffer from rapid wear and inconvenient maintenance. Therefore, a simplified design for the pile driving and clamping mechanism of small machinery is needed to address these issues. Utility Model Content

[0003] The purpose of this utility model is to provide a simple pile clamping device. Through simplified design, the device has the advantages of compact structure, small space occupation, and convenient assembly and disassembly. It can ensure the verticality and stability of precast piles during the pile driving process and is particularly suitable for construction sites with limited space.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A simple pile clamping device includes a pile driving mechanism and a pile clamping mechanism located below the pile driving mechanism. The pile driving mechanism includes a pile driving frame mounted on the body of a static press and two sets of pile driving cylinders vertically mounted on the pile driving frame. The top of the pile clamping mechanism is connected to the telescopic ends of the two sets of pile driving cylinders. The device also includes a guide mechanism, which includes a guide rod and a guide sleeve sleeved outside the guide rod. The guide sleeve extends vertically through and is fixed to the pile driving frame. A copper sleeve sleeve outside the guide rod is installed at the upper and lower ends of the inner cavity of the guide sleeve and is pressed tightly by a pressure cap. The guide rod is slidably in contact with the inner wall of the copper sleeve. The lower end of the guide rod is detachably connected to the pile clamping mechanism. When the telescopic end of the pile driving cylinder drives the pile clamping mechanism to rise and fall, the guide rod can limit its horizontal movement.

[0006] Furthermore, the pile driving frame is inverted L-shaped, with both its vertical and horizontal sections being rectangular box structures. The outer side of the vertical section is provided with four first connecting seats that are hinged to the machine body. The middle of the horizontal section is provided with a precast pile avoidance groove. The cylinder bodies of two sets of pile driving cylinders are installed on the horizontal section and symmetrically located on both sides of the avoidance groove. The telescopic end is hinged to the hinge seat provided at the top of the pile clamping mechanism.

[0007] Furthermore, the guiding mechanism also includes a protective sleeve arranged vertically above the horizontal section of the pile driving frame. The upper ends of the guide rod and the guide sleeve are both located inside the protective sleeve. A flange is provided on the outer periphery of the bottom end of the protective sleeve and is fastened to the top of the horizontal section of the pile driving frame with bolts. The height of the protective sleeve is preferably such that when the guide rod is raised to the highest position, its top does not protrude outside the protective sleeve.

[0008] Furthermore, the guide mechanism is provided in two sets, symmetrically located on both sides of the clearance groove. The lower ends of both sets of guide rods pass through the pile clamping mechanism. The guide rods at the top of the pile clamping mechanism are provided with positioning steps for support and positioning. The bottom end of the guide rods at the bottom of the pile clamping mechanism is provided with threads and is locked by a lock nut.

[0009] Furthermore, the inner cavity of the guide sleeve is provided with two stepped holes at both ends. The copper sleeve is embedded in the small diameter section. The pressure cap is convex in shape and has a through hole in the middle. The pressure cap is sleeved on the guide rod through the through hole, and the small end of the convex shape is embedded in the large diameter section to press the copper sleeve tightly.

[0010] Furthermore, the machine body is provided with a horizontally arranged U-shaped mounting part, and the vertical section of the pile driving frame is inserted into the U-shaped mounting part. The top and bottom of the U-shaped mounting part are provided with two second connecting seats corresponding to the first connecting hinge seat. The first connecting hinge seat and the corresponding second connecting seat are connected by a hinge shaft.

[0011] Furthermore, the pile clamping mechanism includes a pile clamping box and a hydraulic cylinder disposed inside the pile clamping box for clamping the precast pile. The hinge seat is disposed on the top of the pile clamping box, and the guide rod is connected through the pile clamping box.

[0012] Compared with the prior art, the present invention has the following advantages:

[0013] 1. The pile clamping device of this utility model integrates the functions of clamping and pressing piles into one unit. Through the guide rod of the guide mechanism, in cooperation with the copper sleeve, guide sleeve, locking nut, etc., the pile pressing cylinder drives the clamping mechanism to move up and down along the guide rod through the lifting motion. It can achieve precise guidance and limit of the up and down movement of the clamping mechanism, ensuring the verticality and stability of the precast pile during the pile pressing process, and effectively improving the stability and accuracy of construction. The overall structure is more compact, which can reduce the space occupied and improve the convenience of disassembly and assembly, making it particularly suitable for construction sites with limited space.

[0014] 2. The pile clamping device of this utility model has a pile clamping frame and a machine body that are hinged together by a hinged seat, which makes the whole device more flexible and stable during operation, and the disassembly and assembly process is simple and quick, which can improve the disassembly and assembly efficiency of the equipment and reduce labor and time costs. Attached Figure Description

[0015] Figure 1This is a schematic diagram of the three-dimensional structure of this utility model. Figure One .

[0016] Figure 2 This is a schematic diagram of the three-dimensional structure of this utility model. Figure Two .

[0017] Figure 3 This is a schematic diagram of the main structure of this utility model.

[0018] Figure 4 This is a top view of the structure of this utility model.

[0019] Figure 5 This is a schematic diagram of the left-side structure of this utility model.

[0020] Figure 6 yes Figure 3 Enlarged schematic diagram of the cross-sectional structure along direction A (connecting hinge not shown).

[0021] Figure 7 yes Figure 6 A magnified structural diagram at point B in the middle.

[0022] Legend:

[0023] 1. Machine body; 2. Pile driving mechanism; 21. Pile driving cylinder; 22. Pile driving frame; 3. Pile clamping mechanism; 4. Guide mechanism; 41. Guide rod; 42. Guide sleeve; 43. Protective sleeve; 44. Copper sleeve; 45. Pressure cover; 5. Locking nut; 6. Upper connecting hinge seat; 7. Lower connecting hinge seat. Detailed Implementation

[0024] The utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] like Figures 1-7As shown, an embodiment of a simple pile driving and clamping device includes a pile driving mechanism 2 and a clamping mechanism 3 located below the pile driving mechanism 2. The pile driving mechanism 2 includes a pile driving frame 22 mounted on the body 1 of the static press and two sets of pile driving cylinders 21 mounted vertically on the pile driving frame 22. The top of the clamping mechanism 3 is connected to the telescopic ends of the two sets of pile driving cylinders 21. It also includes a guide mechanism 4, which includes a guide rod 41 and a guide sleeve 42 sleeved outside the guide rod 41. The guide sleeve 42 is vertically penetrating and fixed on the pile driving frame 22. The upper and lower ends of the inner cavity of the guide sleeve 42 are respectively equipped with a copper sleeve 44 sleeved outside the guide rod 41 and pressed by a pressure cap 45. The guide rod 41 and the inner wall of the copper sleeve 44 can slide in contact. The lower end of the guide rod 41 is detachably connected to the clamping mechanism 3. When the telescopic end of the pile driving cylinder 21 drives the clamping mechanism 3 to rise and fall, the guide rod 41 can limit its horizontal movement. This invention integrates the functions of clamping and pressing piles into one unit. Through the guide rod of the guide mechanism, in cooperation with the copper sleeve, guide sleeve, and locking nut, the pressing cylinder drives the clamping mechanism to move up and down along the guide rod through the lifting motion. This enables precise guidance and limiting of the clamping mechanism's up and down movement, ensuring the verticality and stability of the precast piles during the pressing process, and effectively improving the stability and accuracy of construction. The overall structure is more compact, reducing the space occupied and improving the convenience of assembly and disassembly, making it particularly suitable for construction sites with limited space.

[0026] In this embodiment, the pile driving frame 22 is inverted L-shaped, and its vertical and horizontal sections are both rectangular box-type structures. The outer side of the vertical section is provided with four first connecting seats that are hinged to the body 1. The middle of the horizontal section is provided with a precast pile avoidance groove. The cylinder bodies of the two sets of pile driving cylinders 21 are installed on the horizontal section and symmetrically located on both sides of the avoidance groove. The telescopic end is hinged to the hinge seat provided at the center of the top two sides of the pile clamping mechanism 3.

[0027] In this embodiment, the pile clamping mechanism 3 includes a rectangular frame-shaped pile clamping box and a hydraulic cylinder (not shown, all of which are prior art and their structures are not described in detail) installed inside the pile clamping box for clamping the precast pile. The hinged seat is located at the center of the top two sides of the rectangular pile clamping box, and the guide rod 41 is connected through the pile clamping box.

[0028] In this embodiment, the guiding mechanism 4 further includes a protective sleeve 43 vertically arranged above the horizontal section of the pile driving frame 22. The upper ends of the guide rod 41 and the guide sleeve 42 are both located inside the protective sleeve 43. A flange is welded to the bottom of the protective sleeve 43 and fastened to the top of the horizontal section of the pile driving frame 22 with bolts. The height of the protective sleeve 43 is preferably such that the top of the guide rod 41 does not protrude outside the protective sleeve 43 when the guide rod 41 is raised to its highest position. The protective sleeve is used to prevent the guide rod from being damaged and can extend its service life. The guide rod can be made of high-strength alloy steel round rod with a surface hardened by quenching. The protective sleeve can be made of seamless steel pipe.

[0029] In this embodiment, the guide mechanism 4 is provided in two sets, symmetrically located on both sides of the clearance slot. The lower ends of both sets of guide rods 41 penetrate the pile clamping box of the pile clamping mechanism 3 (preferably the penetration position is located behind the hinge seat, near the vertical section of the pile driving frame 22). The guide rod 41 is provided with a positioning step for support and positioning at the top position of the pile clamping mechanism 3, and the bottom end of the guide rod 41 at the bottom of the pile clamping mechanism 3 is provided with an external thread. After vertically passing through the through hole on the pile clamping box, it is supported on the top surface of the pile clamping box by the positioning step and locked by the locking nut 5. This structure facilitates the disassembly and replacement of the guide rods.

[0030] In this embodiment, two stepped holes are provided at both ends of the inner cavity of the guide sleeve 42. The copper sleeve 44 is embedded in the small-diameter section away from the end. The pressure cap 45 is convex in shape and has a through hole in the middle. The pressure cap 45 is sleeved on the guide rod 41 through the through hole in the middle, and the small end of the convex shape is embedded in the large-diameter section at the end to press and position the copper sleeve 44. The pressure cap 45 is fixed to the guide sleeve 42 by bolts. This structure facilitates the installation and replacement of the copper sleeve and reduces maintenance costs.

[0031] In this embodiment, the machine body 1 is provided with a horizontally arranged U-shaped mounting part. The vertical section of the pile driving frame 22 is inserted into the U-shaped mounting part. The top and bottom of the U-shaped mounting part are provided with two second connecting seats corresponding to the first connecting hinge seat. The first connecting hinge seat and the corresponding second connecting seat are hinged together by a hinge shaft, forming an upper connecting hinge seat 6 located above the machine body and a lower connecting hinge seat 7 located below the machine body. That is, the outer side of the vertical section of the pile driving frame 22 is detachably connected to the machine body 1 through two upper connecting hinge seats 6 and two lower connecting hinge seats 7, making it easy to assemble and disassemble.

[0032] Working principle:

[0033] During construction, the pile clamping mechanism 3 grips the precast pile, and the pile pressing cylinder 21 extends and retracts, driving the pile clamping mechanism 3 and the precast pile to rise and fall. During this process, the guide rod 41 slides within the copper sleeve 44 to limit the horizontal displacement of the pile clamping mechanism 3, ensuring the verticality and stability of the precast pile. When the copper sleeve 44 needs to be replaced, only the pressure cap 45 needs to be removed for maintenance and replacement.

[0034] The above description is merely a preferred embodiment of this utility model, and the protection scope of this utility model is not limited to the above embodiments. Improvements and modifications obtained without departing from the technical concept of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A simple pile clamping device, comprising a pile driving mechanism (2) and a pile clamping mechanism (3) disposed below the pile driving mechanism (2), wherein the pile driving mechanism (2) comprises a pile driving frame (22) mounted on the body (1) of a static press and two sets of pile driving cylinders (21) vertically mounted on the pile driving frame (22), and the top of the pile clamping mechanism (3) is connected to the telescopic ends of the two sets of pile driving cylinders (21), characterized in that: It also includes a guide mechanism (4), which includes a guide rod (41) and a guide sleeve (42) sleeved outside the guide rod (41). The guide sleeve (42) is vertically inserted and fixed on the pile driving frame (22). The upper and lower ends of the inner cavity of the guide sleeve (42) are respectively fitted with a copper sleeve (44) sleeved outside the guide rod (41) and pressed by a pressure cap (45). The guide rod (41) and the inner wall of the copper sleeve (44) can slide in contact. The lower end of the guide rod (41) can be detachably connected to the pile clamping mechanism (3). When the extension end of the pile driving cylinder (21) drives the pile clamping mechanism (3) to rise and fall, the guide rod (41) can limit its horizontal direction.

2. The simplified pile clamping device according to claim 1, characterized in that: The pile driving frame (22) is inverted L-shaped. Its vertical section and horizontal section are both rectangular box structures. The outer side of the vertical section is provided with four first connecting seats that are hinged to the body (1). The middle of its horizontal section is provided with a precast pile avoidance groove. The cylinder bodies of two sets of pile driving cylinders (21) are installed on the horizontal section and symmetrically located on both sides of the avoidance groove. The telescopic end is hinged to the hinge seat provided on the top of the pile clamping mechanism (3).

3. The simplified pile clamping device according to claim 2, characterized in that: The guiding mechanism (4) also includes a protective sleeve (43) arranged vertically above the horizontal section of the pile driving frame (22). The upper ends of the guide rod (41) and the guide sleeve (42) are both located inside the protective sleeve (43). The bottom outer periphery of the protective sleeve (43) is provided with a flange and is fastened to the top of the horizontal section of the pile driving frame (22) by bolts. The height of the protective sleeve (43) should be such that when the guide rod (41) rises to the highest position, its top does not protrude outside the protective sleeve (43).

4. The simplified pile clamping device according to claim 3, characterized in that: The guide mechanism (4) is provided in two sets, symmetrically located on both sides of the clearance groove. The lower ends of the two sets of guide rods (41) pass through the pile clamping mechanism (3). The guide rod (41) is provided with a positioning step for support and positioning at the top of the pile clamping mechanism (3). The bottom end of the guide rod (41) at the bottom of the pile clamping mechanism (3) is provided with a thread and locked by a locking nut (5).

5. The simplified pile clamping device according to any one of claims 1-4, characterized in that: The guide sleeve (42) has two stepped holes at both ends of its inner cavity. The copper sleeve (44) is embedded in the small diameter section. The pressure cap (45) is convex and has a through hole in the middle. The pressure cap (45) is sleeved on the guide rod (41) through the through hole, and the small end of the convex shape is embedded in the large diameter section to press the copper sleeve (44) tightly.

6. The simplified pile clamping device according to any one of claims 2-4, characterized in that: The body (1) is provided with a horizontally arranged U-shaped mounting part, and the vertical section of the pile driver (22) is inserted into the U-shaped mounting part. The top and bottom of the U-shaped mounting part are provided with two second connecting seats corresponding to the first connecting seat. The first connecting seat and the corresponding second connecting seat are connected by a hinge shaft.

7. The simplified pile clamping device according to claim 6, characterized in that: The pile clamping mechanism (3) includes a pile clamping box and a hydraulic cylinder for clamping precast piles located inside the pile clamping box. The hinge seat is located on the top of the pile clamping box, and the guide rod (41) is connected through the pile clamping box.

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