Pile foundation supporting device

Abstract

The utility model discloses a pile foundation supporting device which comprises a plurality of supporting pieces, and the supporting pieces are evenly arranged on the periphery of a pile foundation in the circumferential direction of the pile foundation. The supporting piece is arranged in an inclined mode, the top end of the supporting piece is connected with a clamping mechanism fixedly arranged on the periphery of the pile foundation in a sleeving mode, and the bottom end of the supporting piece is connected with a bottom plate fixed to the ground on the periphery of the pile foundation. The supporting piece comprises a first rod body, a second rod body and a third rod body, the bottom end of the first rod body is connected with the bottom plate, and the top end of the first rod body is provided with an extrusion mechanism and connected with the bottom end of the second rod body through the extrusion mechanism; the top end of the second rod body is connected with the bottom end of the third rod body, a buffering mechanism is arranged between the top end of the second rod body and the bottom end of the third rod body, and the top end of the third rod body is connected with a clamping mechanism. According to the pile foundation supporting device, the situation that the service life of the supporting piece is shortened due to hard supporting between the supporting piece and the pile foundation is avoided, and the service life of the pile foundation supporting device is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of pile foundation construction, and in particular to a pile foundation support device. Background Technology

[0002] A deep foundation consisting of piles and a pile cap connecting the pile tops, or a single-pile foundation connecting a column and piles, is simply called a pile foundation. If the entire pile is embedded in the soil and the bottom of the pile cap is in contact with the soil, it is called a low-pile-cap pile foundation; if the upper part of the pile is exposed above the ground and the bottom of the pile cap is above the ground, it is called a high-pile-cap pile foundation. Building pile foundations are usually low-pile-cap pile foundations, and pile foundations are widely used in high-rise buildings.

[0003] Patent CN201920839147.8 discloses an anti-tilting pile foundation structure, which uses multiple support rods to support the lower outer perimeter of the pile foundation. However, during use, in windy weather or other conditions, the pile foundation and the bridge or other structures it supports may tilt slightly under wind force to buffer the wind's impact. The support rods in this patented structure are rigidly connected to the pile foundation, permanently keeping it vertical. In windy weather, the support structure requires enormous force to prevent tilting, significantly shortening its lifespan. Furthermore, in windy weather, this support structure causes greater tearing forces between the upper and lower parts of the pile foundation, severely affecting its structural stability. Therefore, it is necessary to research a pile foundation support device to solve these problems. Summary of the Invention

[0004] The purpose of this utility model is to address the above-mentioned problems by providing a pile foundation support device with a simple structure and improved pile foundation support effect.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows:

[0006] A pile foundation support device includes a plurality of support members evenly distributed around the outer periphery of the pile foundation along its circumference. The support members are inclined, with their top ends connected to a clamping mechanism fixedly fitted around the outer periphery of the pile foundation, and their bottom ends connected to a base plate fixed to the ground around the outer periphery of the pile foundation. Each support member includes a first rod, a second rod, and a third rod. The bottom end of the first rod is connected to the base plate, and its top end is provided with a pressing mechanism that connects to the bottom end of the second rod. The top end of the second rod is connected to the bottom end of the third rod, and a buffer mechanism is provided between them. The top end of the third rod is connected to the clamping mechanism.

[0007] Furthermore, the buffer mechanism includes a buffer block; the top end of the second rod is provided with a receiving groove, in which the buffer block is embedded and one end of the buffer block extends out from the receiving groove; the bottom end of the third rod is provided with a guide groove and is sleeved on the outside of the top end of the second rod through the guide groove; the circumferential sidewall of the bottom end of the third rod is provided with a first screw hole, which communicates with the guide groove; the circumferential sidewall of the top end of the second rod is provided with a second screw hole corresponding to the first screw hole, and the first screw hole and the second screw hole are connected by a positioning bolt; a limit sleeve is provided on the outside of the top end of the second rod; when the first screw hole and the second screw hole are connected by the positioning bolt, the end wall of the buffer block extending from the receiving groove contacts the inner end wall of the guide groove, and a buffer gap is formed between the limit sleeve and the bottom end of the third rod.

[0008] Furthermore, the outer periphery of the top end of the second rod is provided with a first external thread, which is threadedly connected to a limiting sleeve sleeved on the outer side of the top end of the second rod.

[0009] Furthermore, a first fastening ring is threaded to the outer side of the top of the second rod body via a first external thread. The first fastening ring is located below the limiting sleeve and abuts against the bottom end wall of the limiting sleeve.

[0010] Furthermore, the clamping mechanism includes several arc-shaped plates, which together form a ring structure and are fitted onto the outer periphery of the pile foundation. Each arc-shaped plate has a first connecting lug at both ends and is bolted to an adjacent arc-shaped plate. The several arc-shaped plates are correspondingly arranged with several supporting members. The outer wall of the middle part of the arc-shaped plate has a second connecting lug and is connected to a first positioning lug pin at the top of the third rod.

[0011] Furthermore, the base plate is rectangular, with a clearance hole at its center, and is fitted onto the outer periphery of the pile foundation through the clearance hole. Mounting holes are located at each of the four corners of the base plate, and mounting bolts are installed in these holes, with the bottom ends of the bolts extending into the ground to fix the base plate to the ground. The base plate also has a third connecting lug corresponding to the support member, which is connected to a second positioning lug pin located at the bottom end of the first rod.

[0012] Furthermore, the extrusion mechanism includes an extrusion sleeve, the bottom end of which is sleeved on the outside of the top end of the first rod and threaded to the first rod through a first internal thread provided on the inner wall of the bottom end of the extrusion sleeve, the top end of which is sleeved on the outside of the bottom end of the second rod and threaded to the second rod through a second internal thread provided on the inner wall of the top end of the extrusion sleeve, the first internal thread and the second internal thread having opposite directions of rotation.

[0013] Furthermore, the first rod body has a second fastening ring threadedly connected to the outer side of its top end, and the second fastening ring abuts against the bottom end wall of the extrusion sleeve; the second rod body has a third fastening ring threadedly connected to the outer side of its bottom end, and the third fastening ring abuts against the top end wall of the extrusion sleeve.

[0014] Furthermore, a leverage hole is provided on the outer wall of the middle part of the extrusion sleeve, and the leverage hole is connected to the inside of the extrusion sleeve.

[0015] Compared with the prior art, the advantages and positive effects of this utility model are:

[0016] During installation, the base plate is first fixed to the ground, and the clamping mechanism is fixed to the outer periphery of the pile foundation. Next, the support component is installed between the base plate and the clamping mechanism. Then, the clamping mechanism is pressed by a compression mechanism to make the connection between the clamping assembly and the pile foundation tighter. Finally, the positioning bolts installed between the second and third rods are removed. This design achieves a rigid connection between the entire support component and the second and third rods through the connection of the positioning bolts. After installation, removing the positioning bolts allows the buffer mechanism on the support component to function as a buffer. In normal weather, the pile foundation remains vertical. In windy weather, the pile foundation, clamping assembly, and third rod will compress the buffer block, causing a slight tilt of the pile foundation. This avoids the shortened service life of the support component due to rigid support between the support component and the pile foundation. Simultaneously, the slight tilt of the pile foundation does not generate tearing forces between the upper and lower parts of the pile foundation, effectively ensuring that the structural stability of the pile foundation is not affected.

[0017] On the other hand, by setting a limiting sleeve on the outside of the second rod, the buffer gap between the limiting sleeve and the bottom of the third rod is the tilt range when the pile foundation tilts slightly. When the limiting sleeve contacts the bottom of the third rod, the pile foundation cannot tilt further. This effectively limits the maximum tilt range of the pile foundation, ensuring that the tilt range of the pile foundation is within the safe control range of the building and will not have any impact on the safety of the pile foundation and the bridge. This further improves the effectiveness of the present invention. Attached Figure Description

[0018] 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.

[0019] Figure 1 This is the main view of the present invention.

[0020] Figure 2 This is a top view of the structure of this utility model;

[0021] Figure 3 This is an assembly structure diagram of the clamp mechanism;

[0022] Figure 4 This is a structural schematic diagram of the support component;

[0023] Figure 5 This is a sectional view of the support component in its installed state.

[0024] Figure 6 for Figure 5 A magnified view of the local structure;

[0025] Figure 7 This is a cross-sectional view showing the support state of the support component;

[0026] Figure 8 for Figure 7 A magnified view of the local structure. Detailed Implementation

[0027] 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, any modifications, equivalent substitutions, improvements, etc., made by those skilled in the art to all other embodiments obtained without creative effort should be included within the protection scope of the present utility model.

[0028] like Figures 1 to 8 As shown, this embodiment discloses a pile foundation support device, including a support member 1. Four support members 1 are provided and are evenly arranged around the outer periphery of the pile foundation 4 along the circumferential direction. The support member 1 is inclined. The top end of the support member 1 is connected to a clamping mechanism 2 that is fixedly sleeved on the outer periphery of the pile foundation 4, and the bottom end of the support member 1 is connected to a base plate 3 fixed on the ground around the outer periphery of the pile foundation.

[0029] The support member 1 includes a first rod 11, a second rod 12, and a third rod 13. The bottom end of the first rod 11 is connected to the base plate 3. The top end of the first rod 11 is provided with a pressing mechanism and is connected to the bottom end of the second rod 12 through the pressing mechanism. The top end of the second rod 12 is connected to the bottom end of the third rod 13, and a buffer mechanism is provided between the top end of the second rod and the bottom end of the third rod. The top end of the third rod 13 is connected to the clamping mechanism 2.

[0030] The buffer mechanism includes a buffer block 15, which is a rubber block with elastic properties; the top end of the second rod 12 is provided with a receiving groove 123, in which the buffer block 15 is embedded and one end of the buffer block 15 extends out of the receiving groove 123; the bottom end of the third rod 13 is provided with a guide groove 132 and is sleeved on the outside of the top end of the second rod 12 through the guide groove 132; the circumferential sidewall of the bottom end of the third rod 13 is provided with a first screw hole 133, which communicates with the guide groove 132; The circumferential sidewall at the top of the second rod 12 is provided with a second screw hole 124 corresponding to the first screw hole 133. The first screw hole 133 and the second screw hole 124 are connected by a positioning bolt 16. A limit sleeve 121 is provided on the outer side of the top of the second rod 12. When the first screw hole 133 and the second screw hole 124 are connected by the positioning bolt 16, the end wall of the buffer block 15 extending from the receiving groove 123 contacts the inner end wall of the guide groove 132, and a buffer gap 17 is formed between the limit sleeve 121 and the bottom end of the third rod 13.

[0031] During the installation of the support components, positioning bolts are installed in the first and second screw holes, forming a rigid connection structure between the first, second, and third rods. This facilitates the compression connection between the top of the support component and the clamping mechanism, allowing the clamping mechanism to achieve a tight gripping effect on the pile foundation. After the support components are installed, to achieve a buffering effect, the positioning bolts between the first and second screw holes are removed. At this time, the third rod can slide relative to the second rod. When the pile foundation tilts due to wind force, the third rod will press against the buffer block and overcome the resistance of the buffer block to move downward until the bottom end of the third rod abuts against the limiting sleeve. When the wind force is removed, the pile foundation, buffer block, and third rod all return to their original positions, maintaining the vertical support operation of the pile foundation. Its structure is simple and easy to operate, further improving the effectiveness of this utility model.

[0032] The second rod 12 has a first external thread on its outer periphery at the top end, which is threaded to the limiting sleeve 121 sleeved on the outer side of the top end of the second rod 12.

[0033] The outer side of the top end of the second rod 12 is connected to a first fastening ring 122 by a first external thread. The first fastening ring 122 is located below the limiting sleeve 121 and abuts against the bottom end wall of the limiting sleeve 121.

[0034] The design of the limiting sleeve connecting to the second rod via a threaded structure allows for adjustment of its position, thereby adjusting the size of the buffer gap. This adjustment can be tailored to the structural performance of the pile foundation, enhancing the applicability of the support component. After adjusting the position of the limiting sleeve, tightening the first fastening ring to ensure it abuts against the limiting sleeve prevents rotational movement during support, ensuring the buffer gap remains unchanged and improving the support effect.

[0035] The clamping mechanism 2 includes four arc-shaped plates 21, which together form a ring structure and are fitted around the outer periphery of the pile foundation 4. Each end of the arc-shaped plate 21 is provided with a first connecting ear 22, which is bolted to the adjacent arc-shaped plate. The four arc-shaped plates 21 are correspondingly provided with four support members 1. The outer wall of the middle part of the arc-shaped plate 21 is provided with a second connecting ear 23, which is connected to the first positioning ear 131 pin provided at the top of the third rod 13.

[0036] When installing the arc-shaped plates, they are first initially fixed with bolts. Then, the arc-shaped plates are pressed by a pressing mechanism, pressing the four arc-shaped plates toward the outer wall of the pile foundation, so that the inner wall of the arc-shaped plates is pressed against the outer wall of the pile foundation. Finally, the bolts at both ends of the arc-shaped plates are fully tightened, thus achieving the supporting effect of the support for the pile foundation.

[0037] The base plate 3 is rectangular. A clearance hole is provided at the center of the base plate 3, and the base plate 3 is fitted around the pile foundation 4 through the clearance hole. There are mounting holes at the four corners of the base plate 3. Mounting bolts 301 are installed in the mounting holes. The bottom ends of the mounting bolts 301 extend into the ground to fix the base plate 3 to the ground. The base plate 3 is provided with a third connecting ear 302 corresponding to the support member 1. The third connecting ear 302 is connected to the second positioning ear 111 provided at the bottom end of the first rod 11 by a pin.

[0038] The base plate is mainly connected to the ground to achieve the fixing operation between the ground and the bottom of the support; the base plate can be other shapes, and its shape and structure do not affect the technical effect of this technical solution.

[0039] The extrusion mechanism includes an extrusion sleeve 14. The bottom end of the extrusion sleeve 14 is sleeved on the outside of the top end of the first rod 11 and is threaded to the first rod 11 through a first internal thread provided on the inner wall of the bottom end of the extrusion sleeve 14. The top end of the extrusion sleeve 14 is sleeved on the outside of the bottom end of the second rod 12 and is threaded to the second rod 12 through a second internal thread provided on the inner wall of the top end of the extrusion sleeve 14. The first internal thread and the second internal thread have opposite directions of rotation.

[0040] The compression mechanism is designed to facilitate the installation of the support components. Before installation, the base plate and clamp assembly are installed first. Then, by rotating the compression sleeve, the first and second rods are moved closer or further apart to bring the support component to an appropriate length. At this point, the second positioning ear at the bottom of the first rod is connected to the third connecting ear on the base plate, and the first positioning ear at the top of the third rod is connected to the second connecting ear pin on the outer side of the arc plate. Finally, by rotating the compression sleeve, the first and second rods are moved further apart, increasing the length of the support component and compressing the base plate and arc plate, ultimately achieving the abutment support effect of the support component on the arc plate and the pile foundation.

[0041] The first rod 11 has a second fastening ring 142 threadedly connected to the outer side of its top end, and the second fastening ring 142 abuts against the bottom end wall of the extrusion sleeve 14; the second rod 12 has a third fastening ring 143 threadedly connected to the outer side of its bottom end, and the third fastening ring 143 abuts against the top end wall of the extrusion sleeve 14.

[0042] The outer wall of the middle part of the extrusion sleeve 14 is provided with a lever-assisted hole 141 for inserting a lever. The lever-assisted hole 141 is connected to the inside of the extrusion sleeve 14. In order to facilitate the rotation of the extrusion sleeve, a lever can be inserted into the lever-assisted hole. The lever is used to drive the extrusion sleeve to rotate and adjust. This operation makes the rotation of the extrusion sleeve easier and improves the operation convenience of the extrusion mechanism.

[0043] After adjusting the extrusion mechanism, the second and third fastening rings at both ends of the extrusion sleeve are screwed and brought into contact with the ends of the extrusion sleeve. This prevents the extrusion sleeve from rotating and loosening during the support process, ensuring that the support effect of the support on the pile foundation is not affected, and further improving the effectiveness of this utility model.

[0044] During installation, the base plate is first fixed to the ground, and the clamping mechanism is fixed to the outer periphery of the pile foundation. Next, the support component is installed between the base plate and the clamping mechanism. Then, the clamping mechanism is pressed by a compression mechanism to make the connection between the clamping assembly and the pile foundation tighter. Finally, the positioning bolts installed between the second and third rods are removed. This design achieves a rigid connection between the entire support component and the second and third rods through the connection of the positioning bolts. After installation, removing the positioning bolts allows the buffer mechanism on the support component to function as a buffer. In normal weather, the pile foundation remains vertical. In windy weather, the pile foundation, clamping assembly, and third rod will compress the buffer block, causing a slight tilt of the pile foundation. This avoids the shortened service life of the support component due to rigid support between the support component and the pile foundation. Simultaneously, the slight tilt of the pile foundation does not generate tearing forces between the upper and lower parts of the pile foundation, effectively ensuring that the structural stability of the pile foundation is not affected.

[0045] On the other hand, by setting a limiting sleeve on the outside of the second rod, the buffer gap between the limiting sleeve and the bottom of the third rod is the tilt range when the pile foundation tilts slightly. When the limiting sleeve contacts the bottom of the third rod, the pile foundation cannot tilt further. This effectively limits the maximum tilt range of the pile foundation, ensuring that the tilt range of the pile foundation is within the safe control range of the building and will not have any impact on the safety of the pile foundation and the bridge. This further improves the effectiveness of the present invention.

Claims

1. A pile foundation support device comprising a support member provided with a plurality of support members arranged uniformly in the circumferential direction of the pile foundation at the outer periphery of the pile foundation, characterized in that: The support is arranged in an inclined manner, the top end of the support is connected with a clamping mechanism fixed on the outer periphery of the pile foundation, and the bottom end of the support is connected with a bottom plate fixed on the ground around the pile foundation; the support comprises a first rod body, a second rod body and a third rod body, the bottom end of the first rod body is connected with the bottom plate, the top end of the first rod body is provided with an extrusion mechanism and is connected with the bottom end of the second rod body through the extrusion mechanism, the top end of the second rod body is connected with the bottom end of the third rod body, and a buffer mechanism is arranged between the top end of the second rod body and the bottom end of the third rod body, and the top end of the third rod body is connected with the clamping mechanism.

2. A pile walling apparatus as claimed in claim 1, wherein: The buffer mechanism comprises a buffer block; the top end of the second rod body is provided with a containing groove, the buffer block is embedded in the containing groove, and one end of the buffer block extends out of the containing groove; the bottom end of the third rod body is provided with a guide groove and is sleeved outside the top end of the second rod body through the guide groove; the circumferential sidewall of the bottom end of the third rod body is provided with a first screw hole, the first screw hole is in communication with the guide groove; the circumferential sidewall of the top end of the second rod body is provided with a second screw hole corresponding to the first screw hole, the first screw hole and the second screw hole are connected through a positioning bolt; the top end of the second rod body is provided with a limiting sleeve outside; when the first screw hole and the second screw hole are connected through the positioning bolt, the end wall of the buffer block extending out of the containing groove is in contact with the inner end wall of the guide groove, and a buffer gap is formed between the limiting sleeve and the bottom end of the third rod body.

3. A pile walling arrangement according to claim 2, wherein: The top end of the second rod body is provided with a first external thread outside the periphery and is threadedly connected with the limiting sleeve sleeved outside the top end of the second rod body through the first external thread.

4. A pile walling arrangement according to claim 3, wherein: The top end of the second rod body is provided with a first external thread outside the periphery and is threadedly connected with the limiting sleeve sleeved outside the top end of the second rod body through the first external thread.

5. A pile walling apparatus as claimed in claim 1, wherein: The clamping mechanism comprises a plurality of arc plate members, the plurality of arc plate members form a ring structure and are sleeved around the outer periphery of the pile foundation through the ring structure, and the two ends of the arc plate member are provided with first connecting ears and are bolted to the adjacent arc plate members through the first connecting ears; the plurality of arc plate members are arranged correspondingly to the plurality of supports, the outer sidewall of the middle part of the arc plate member is provided with a second connecting ear and is connected with a first positioning ear pin shaft arranged at the top end of the third rod body through the second connecting ear.

6. A pile walling apparatus as claimed in claim 1, wherein: The bottom plate is in the shape of a rectangular plate, an avoiding hole is arranged at the center position of the bottom plate and the bottom plate is sleeved around the outer periphery of the pile foundation through the avoiding hole, and mounting holes are arranged at the four corner positions of the bottom plate, mounting bolts are arranged in the mounting holes, the bottom ends of the mounting bolts extend into the ground to fix the bottom plate on the ground; a third connecting ear corresponding to the support is arranged on the bottom plate, and the third connecting ear is connected with a second positioning ear pin shaft arranged at the bottom end of the first rod body.

7. A pile walling apparatus as claimed in claim 1, wherein: The extrusion mechanism comprises an extrusion sleeve, the bottom end of the extrusion sleeve is sleeved outside the top end of the first rod body and is threadedly connected with the first rod body through a first internal thread arranged on the inner wall of the bottom end of the extrusion sleeve, the top end of the extrusion sleeve is sleeved outside the bottom end of the second rod body and is threadedly connected with the second rod body through a second internal thread arranged on the inner wall of the top end of the extrusion sleeve, and the rotation directions of the first internal thread and the second internal thread are opposite.

8. A pile walling arrangement according to claim 7, wherein: The first rod body top end is externally threaded connected with a second fastening ring, and the second fastening ring is in abutting contact with the bottom end wall of the extrusion sleeve; the second rod body bottom end is externally threaded connected with a third fastening ring, and the third fastening ring is in abutting contact with the top end wall of the extrusion sleeve.

9. A pile walling arrangement according to claim 7, wherein: A power-assisted hole is arranged on the outer wall of the middle part of the extrusion sleeve, and the power-assisted hole is in communication with the inside of the extrusion sleeve.

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