A static pressure pile construction limiting device

Abstract

This utility model discloses a static pressure pile construction limiting device, including a frame. A lifting plate is provided at the top of the frame, and a pressure-applying component is provided at the top of the lifting plate. Support feet are symmetrically installed at the bottom of the frame. U-shaped frames are symmetrically arranged inside the frame, and switching components are provided inside each U-shaped frame. A drive clamping component is provided on the outside of the U-shaped frame. This static pressure pile construction limiting device is equipped with a switching component. By opening an arc-shaped groove and a rectangular groove at both ends of the adjusting body, and cooperating with the fixing action of bolts and fixing holes, the clamping structure can be flexibly switched according to the shape of the precast pile, such as "circular, rectangular, etc." This solves the problem that the existing device can only be adapted to circular piles, and greatly improves the applicability of the device.

Description

Technical Field

[0001] This utility model relates to the field of static pressure pile construction limiting technology, specifically a static pressure pile construction limiting device. Background Technology

[0002] Static pile driving is a method of engineering pile foundation construction. The static pile driving method uses the pile driving mechanism of a static pile driver to provide reaction force through the pile driving machine's own weight and the counterweight on the frame to press the precast pile into the soil.

[0003] Chinese Patent CN221627079U discloses a precast pile static pressure construction positioning device, specifically relating to the field of building construction technology. The device includes: at least two sets of positioning components, each comprising an arc-shaped positioning plate arranged around the precast pile, with multiple positioning plates forming a positioning hole for placing the precast pile; and at least one adjustment mechanism positioned between two adjacent positioning plates to adjust the distance between them, so that the size of the positioning hole matches the outer diameter of the precast pile. This invention, through the adjustment mechanism, can adjust the relative position between the positioning plates, thereby adjusting the size of the positioning hole according to actual needs. This solves the problem of existing positioning devices not matching the size of the precast pile, requiring the customization of larger or smaller positioning devices and causing resource waste. It also enables precise positioning of the precast pile, ensuring its verticality and positional accuracy.

[0004] However, the above-mentioned patent has the following shortcomings: The above-mentioned patent uses two arc-shaped positioning plates to clamp and guide the precast pile into the soil, but in actual use, the shape of the precast pile is mostly cylindrical or rectangular. The above-mentioned device cannot clamp and guide rectangular precast piles, and its application range is narrow. Therefore, it needs to be improved. Utility Model Content

[0005] The purpose of this invention is to provide a static pressure pile construction limiting device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a static pressure pile construction limiting device, comprising a frame, a lifting plate is provided at the top of the frame, and a pressurizing component is provided at the top of the lifting plate; support feet are symmetrically installed at the bottom of the frame; U-shaped frames are symmetrically arranged inside the frame, and switching components are provided inside each U-shaped frame; and a drive clamping component is provided on the outside of the U-shaped frame. The switching component includes an adjusting body, a rectangular groove, and an arc-shaped groove. The adjusting body is rotatably installed inside the U-shaped frame. One end of the adjusting body has an arc-shaped groove, and the other end of the adjusting body has a rectangular groove.

[0007] By adopting the above technical solution, when the precast pile is circular or conical, the adjusting body is rotated so that the arc groove faces inward; when the precast pile is rectangular, the adjusting body is rotated so that the rectangular groove faces inward. This effectively solves the problem that the existing device can only adapt to circular piles and greatly improves the device's adaptability to precast piles of different shapes.

[0008] As a further aspect of this utility model: a plurality of first rollers are installed in the adjusting body, and the first rollers are arranged in an arc shape.

[0009] By adopting the above technical solution, when the arc-shaped groove clamps the circular or conical precast pile, the first roller with the arc distribution rolls in contact with the surface of the pile, converting the sliding friction during the descent of the pile into rolling friction, significantly reducing frictional resistance, avoiding damage to the surface of the pile due to friction, and ensuring that the pile can descend smoothly in the vertical direction.

[0010] As a further embodiment of this utility model: a second roller is symmetrically and rotatably installed on the inner wall of the rectangular groove, and the second roller is vertically distributed.

[0011] By adopting the above technical solution, when the rectangular groove clamps the rectangular precast pile, the vertically distributed second rollers roll in contact with the side of the rectangular pile, which can effectively reduce the friction loss between the rectangular pile and the rectangular groove, prevent the corners of the rectangular pile from being deformed or damaged due to friction, and ensure that the rectangular pile descends smoothly during the limiting process.

[0012] As a further embodiment of this utility model: bolts are symmetrically threaded through both sides of the U-shaped frame, and fixing holes are symmetrically opened at both ends of the adjusting body. The through ends of the bolts are inserted into the fixing holes, and the bolts are used to fix the adjusting body.

[0013] By adopting the above technical solution, after the adjusting body rotates into position according to the shape of the precast pile, the bolts are tightened to insert it into the corresponding fixing hole, which can firmly fix the adjusting body in the U-shaped frame, avoid the adjusting body from rotating or shifting due to vibration or pressure during construction, and ensure the stability and reliability of the clamping structure.

[0014] As a further embodiment of this utility model: the driving clamping assembly includes a first hydraulic rod, and the first hydraulic rod is horizontally installed through both outer walls of the frame, and the output end of the first hydraulic rod is installed on the outer wall of the U-shaped frame. The outer wall of the U-shaped frame is symmetrically equipped with first guide rods, and the first guide rods slide through the U-shaped frame.

[0015] By adopting the above technical solution, the first hydraulic rod can drive the two U-shaped frames to move laterally relative to each other, so as to flexibly adjust the distance between the two U-shaped frames to adapt to precast piles of different sizes; at the same time, the first guide rod accurately guides the movement direction of the U-shaped frame to prevent the U-shaped frame from tilting during movement or clamping, ensuring that the clamping center of the precast pile is consistent with the center of the device, and improving the limiting accuracy.

[0016] As a further embodiment of this utility model: the pressurizing component includes a second hydraulic rod, a lifting plate and a pushing plate. The second hydraulic rod is vertically installed through the top of the frame, and the output end of the second hydraulic rod is installed with a lifting plate. The bottom of the lifting plate is installed with a pushing plate. Multiple second guide rods are vertically installed on the top of the lifting plate, and the top of each second guide rod slides through the U-shaped frame.

[0017] By adopting the above technical solution, the second hydraulic rod can drive the lifting plate and the pressing plate to move vertically. After the pressing plate contacts the top of the precast pile, it can apply a stable downward pressure to help press the precast pile into the soil. The second guide rod guides and limits the lifting process of the lifting plate to ensure that the pressure direction of the pressing plate is always vertically downward, avoiding uneven force on the pile body and tilting due to the deviation of the lifting plate, thus ensuring the construction quality.

[0018] As a further embodiment of this utility model: the output shafts of both the first hydraulic rod and the second hydraulic rod are fitted with retractable rubber sleeves.

[0019] By adopting the above technical solution, the telescopic rubber sleeve can deform synchronously with the extension and retraction of the output shafts of the first and second hydraulic rods, forming a sealed protection for the output shafts. This effectively prevents impurities such as mud, dust, and moisture from entering the hydraulic rods during construction, preventing wear or corrosion of the hydraulic rods due to impurities, extending the service life of the hydraulic rods, and reducing equipment maintenance costs.

[0020] Compared with the prior art, the beneficial effects of this utility model are: the static pressure pile construction limiting device is equipped with a switching component. By opening arc-shaped grooves and rectangular grooves at both ends of the adjusting body, and cooperating with the fixing action of bolts and fixing holes, the clamping structure can be flexibly switched according to the shape of the precast pile, which is "circular" or "rectangular". This solves the problem that the existing device can only be adapted to circular piles and greatly improves the applicability of the device. In addition, the static pressure pile construction limiting device is also equipped with a drive clamping assembly and a pressurizing assembly. The drive clamping assembly drives the U-shaped frame to move through the first hydraulic rod, and works with the first guide rod to ensure stable clamping, which can be adapted to precast piles of different sizes. The pressurizing assembly drives the push plate to apply pressure through the second hydraulic rod, and the second guide rod ensures smooth pressure application and improves construction accuracy. At the same time, the first roller and the second roller reduce friction and protect the pile body, and the telescopic rubber sleeve extends the life of the hydraulic rod. The overall structure is reasonably designed and highly practical. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the main structure of this utility model; Figure 2 This is a top view of the U-shaped frame structure of this utility model; Figure 3 This is a schematic diagram of the U-shaped frame, the first hydraulic rod, and the first guide rod of this utility model; Figure 4 This is a schematic diagram of the adjusting body, arc-shaped groove, and rectangular groove structure of this utility model.

[0022] In the diagram: 1. Frame; 2. U-shaped frame; 3. Adjustable body; 4. Rectangular groove; 5. Arc groove; 6. Bolt; 7. Fixing hole; 8. First roller; 9. Second roller; 10. First hydraulic rod; 11. First guide rod; 12. Second hydraulic rod; 13. Lifting plate; 14. Second guide rod; 15. Push plate; 16. Support foot. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-4 This utility model provides a technical solution: a static pressure pile construction limiting device, including a frame 1, a lifting plate 13 is provided at the top of the frame 1, and a pressure component is provided at the top of the lifting plate 13, support feet 16 are symmetrically installed at the bottom of the frame 1, a U-shaped frame 2 is symmetrically arranged inside the frame 1, and a switching component is provided inside each U-shaped frame 2, and a drive clamping component is provided on the outside of the U-shaped frame 2. The switching component includes an adjustment body 3, a rectangular groove 4 and an arc groove 5. The adjustment body 3 is rotatably installed inside the U-shaped frame 2. One end of the adjustment body 3 is provided with an arc groove 5, and the other end of the adjustment body 3 is provided with a rectangular groove 4. Specifically, the switching component can flexibly switch the clamping surface according to the shape of the precast pile. When the precast pile is circular or conical, the adjusting body 3 is rotated so that the arc groove 5 faces inward. When the precast pile is rectangular, the adjusting body 3 is rotated so that the rectangular groove 4 faces inward, thus achieving adaptive clamping of piles of different shapes. A detachable sharp pin is selectively installed on the support foot 16. When working on soft soil, the pin is inserted into the ground soil to further enhance the connection stability between the support foot 16 and the ground, prevent the device from sliding or tipping over during pressurized construction, and ensure construction safety and limiting accuracy.

[0025] Furthermore, multiple first rollers 8 are installed inside the adjusting body 3, and the first rollers 8 are arranged in an arc shape; Specifically, the arc-shaped distribution of the first roller 8 is adapted to the arc-shaped groove 5. When the circular pile descends in the arc-shaped groove 5, the first roller 8 rolls into contact with the surface of the pile, converting sliding friction into rolling friction, greatly reducing frictional resistance and preventing the surface of the pile from being scratched.

[0026] Furthermore, a second roller 9 is symmetrically and rotatably installed on the inner wall of the rectangular groove 4, and the second roller 9 is vertically distributed; Specifically, the vertically distributed second rollers 9 contact the two sides of the rectangular pile. During the descent of the rectangular pile, the second rollers 9 roll with the pile, reducing the friction between the rectangular pile and the rectangular groove 4, preventing the corners of the rectangular pile from being damaged by friction, and ensuring the smooth descent of the pile.

[0027] Furthermore, bolts 6 are symmetrically threaded through both sides of the U-shaped frame 2, and fixing holes 7 are symmetrically opened at both ends of the adjusting body 3. The through ends of the bolts 6 are inserted into the fixing holes 7, and the bolts 6 are used to fix the adjusting body 3. Specifically, after the adjusting body 3 is rotated into position, the bolt 6 is tightened so that the end of the bolt 6 is inserted into the corresponding fixing hole 7, which can firmly fix the adjusting body 3 in the U-shaped frame 2, preventing the adjusting body 3 from rotating due to vibration or pressure during construction and ensuring the stability of the clamping structure.

[0028] Furthermore, the drive clamping assembly includes a first hydraulic rod 10. The first hydraulic rod 10 is installed transversely through both outer walls of the frame 1, and the output ends of the first hydraulic rod 10 are installed on the outer wall of the U-shaped frame 2. The outer walls of the U-shaped frame 2 are symmetrically equipped with first guide rods 11, and the first guide rods 11 slide through the U-shaped frame 2. Specifically, when the first hydraulic rod 10 extends or retracts, it drives the U-shaped frame 2 to move laterally within the frame 1, thereby adjusting the distance between the two U-shaped frames 2 to accommodate precast piles of different diameters or sizes; the first guide rod 11 slides with the frame 1 to restrict the movement trajectory of the U-shaped frame 2, prevent the U-shaped frame 2 from deviating during movement or clamping, and ensure that the clamping center of the two U-shaped frames 2 on the pile body is consistent with the center of the device.

[0029] Furthermore, the pressurization assembly includes a second hydraulic rod 12, a lifting plate 13, and a pushing plate 15. The second hydraulic rod 12 is vertically installed through the top of the frame 1, and the lifting plate 13 is installed at the output end of the second hydraulic rod 12. The pushing plate 15 is installed at the bottom of the lifting plate 13, and multiple second guide rods 14 are vertically installed at the top of the lifting plate 13. The top of each of the second guide rods 14 slides through the U-shaped frame 2. Specifically, when the second hydraulic rod 12 extends, it pushes the lifting plate 13 and the pressing plate 15 downwards. After the pressing plate 15 contacts the top of the precast pile, it applies pressure to help press the pile into the soil. The second guide rod 14 guides the lifting direction of the lifting plate 13 to ensure that the pressure of the pressing plate 15 is vertically downward, avoiding uneven force on the pile due to the tilting of the lifting plate 13, and ensuring the verticality of the pile. Furthermore, the output shafts of both the first hydraulic rod 10 and the second hydraulic rod 12 are fitted with retractable rubber sleeves; Specifically, the telescopic rubber sleeve deforms as the hydraulic rod's output shaft extends and retracts, isolating the output shaft from the external environment. This prevents dirt, dust, rainwater, and other contaminants from entering the hydraulic rod during construction, thus avoiding wear or corrosion of internal components, extending the hydraulic rod's service life, and reducing maintenance costs. Working principle: When using this static pressure pile construction limiting device, first adjust the switching component according to the shape of the precast pile. If it is a circular or conical pile, rotate the adjusting body 3 so that the arc groove 5 faces inward; if it is a rectangular pile, make the rectangular groove 4 face inward. Then tighten the bolt 6 and insert it into the fixing hole 7 to fix the adjusting body 3. Next, place the precast pile between the two U-shaped frames 2, activate the first hydraulic rod 10, and drive the two U-shaped frames 2 to move towards each other along the first guide rod 11 until the first roller 8 or the second roller 9 in the arc groove 5 or the rectangular groove 4 contacts and clamps the pile surface, thus completing the clamping and limiting of the pile. Then, the second hydraulic rod 12 is activated, which drives the lifting plate 13 to move downward along the second guide rod 14, so that the push plate 15 presses on the top of the precast pile. The second hydraulic rod 12 continuously applies pressure, and with the weight of the pile, the precast pile is slowly pressed into the soil. During the descent of the pile, the first roller 8 or the second roller 9 rolls with the pile to reduce friction and protect the surface of the pile. The telescopic rubber sleeve protects the output shafts of the first hydraulic rod 10 and the second hydraulic rod 12. After the construction is completed, the components can be reset by reversing the operation. The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0030] The terms “center,” “longitudinal,” “lateral,” “front,” “rear,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are merely simplified descriptions for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.

[0031] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A static pressure pile construction limiting device, comprising a frame (1), characterized in that: The frame (1) is provided with a lifting plate (13) at the top, and a pressure component is provided at the top of the lifting plate (13). Support feet (16) are symmetrically installed at the bottom of the frame (1). U-shaped frames (2) are symmetrically arranged inside the frame (1), and switching components are provided inside each U-shaped frame (2). A drive clamping component is provided on the outside of the U-shaped frame (2). The switching component includes an adjusting body (3), a rectangular groove (4) and an arc groove (5). The adjusting body (3) is rotatably installed inside the U-shaped frame (2). One end of the adjusting body (3) is provided with an arc groove (5), and the other end of the adjusting body (3) is provided with a rectangular groove (4).

2. The static pressure pile construction limiting device according to claim 1, characterized in that: The adjusting body (3) is equipped with a plurality of first rollers (8), and the first rollers (8) are arranged in an arc shape.

3. The static pressure pile construction limiting device according to claim 1, characterized in that: The inner wall of the rectangular groove (4) is symmetrically and rotatably equipped with a second roller (9), and the second roller (9) is vertically distributed.

4. The static pressure pile construction limiting device according to claim 1, characterized in that: The U-shaped frame (2) has bolts (6) threaded through both sides symmetrically. The adjusting body (3) has fixing holes (7) symmetrically opened at both ends. The through ends of the bolts (6) are inserted into the fixing holes (7). The bolts (6) are used to fix the adjusting body (3).

5. The static pressure pile construction limiting device according to claim 1, characterized in that: The drive clamping assembly includes a first hydraulic rod (10). The first hydraulic rod (10) is installed transversely through both outer walls of the frame (1). The output ends of the first hydraulic rod (10) are installed on the outer wall of the U-shaped frame (2). The outer walls of the U-shaped frame (2) are symmetrically equipped with first guide rods (11), and the first guide rods (11) slide through the U-shaped frame (2).

6. The static pressure pile construction limiting device according to claim 1, characterized in that: The pressurization assembly includes a second hydraulic rod (12), a lifting plate (13) and a push plate (15). The second hydraulic rod (12) is vertically installed through the top of the frame (1), and the lifting plate (13) is installed at the output end of the second hydraulic rod (12). The push plate (15) is installed at the bottom of the lifting plate (13). Multiple second guide rods (14) are vertically installed at the top of the lifting plate (13), and the top of each second guide rod (14) slides through the U-shaped frame (2).

7. A static pressure pile construction limiting device according to claim 5, characterized in that: The output shafts of the first hydraulic rod (10) and the second hydraulic rod (12) are both fitted with retractable rubber sleeves.

Images