Supporting pile foundation pit supporting device for civil construction engineering

Abstract

The invention discloses a civil construction engineering supporting pile foundation pit supporting device, and relates to the technical field of construction engineering, the civil construction engineering supporting pile foundation pit supporting device comprises a supporting pile, the supporting pile is provided with a resistance assembly, and the resistance assembly comprises a first threaded rod, a circular pile sliding ring and a second trapezoidal block which are movably connected in the supporting pile; the first resistance plate and the second resistance plate are symmetrically and movably connected in the supporting pile, a circular pile sliding ring and a second trapezoidal block are driven to move upwards at the same time through rotation of a first threaded rod in the resistance assembly, then the first resistance plate and the second resistance plate are pushed to stretch out towards the two sides of the supporting pile, and the contact area of the supporting pile and soil is increased; in addition, the connecting strength of the supporting pile and the ground of the foundation pit is remarkably improved, under the lateral pressure effect of a soil body, the resistance assembly can effectively resist rotation, falling off or loosening of the supporting pile, the stability and reliability of the supporting pile are ensured, and therefore the overall safety and stability of the foundation pit are greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of construction engineering, and particularly to a foundation pit support device for a retaining pile in civil engineering construction. Background Art

[0002] Civil engineering construction, as the cornerstone of the infrastructure construction of human society, covers the whole process from planning, design to construction and maintenance. It not only involves the construction of buildings such as houses, bridges, roads, and tunnels, but also relates to multiple fields such as water resource management, environmental engineering, and prevention and control of geological disasters. Foundation pit support with retaining piles is an important engineering technical measure. By setting retaining piles around the foundation pit, it enhances the stability of the foundation pit slope and ensures safety during the foundation pit excavation process. These retaining piles can effectively resist soil pressure and water pressure, preventing the foundation pit slope from collapsing or sliding.

[0003] For the existing foundation pit retaining pile device, it is usually inserted into the foundation pit ground by a hammering method, and its design shape is mostly cylindrical, with a pointed cone at the bottom to facilitate insertion. However, when this retaining pile is connected to the foundation pit ground, there is often a problem of insufficient connection strength. Since the retaining pile mainly bears the lateral pressure of the soil mass, once it is affected by a large pressure or external force, the retaining pile is prone to rotation, detachment or loosening, thus affecting the overall stability and safety of the foundation pit. Therefore, a foundation pit support device for a retaining pile in civil engineering construction is proposed. Summary of the Invention

[0004] The purpose of the present invention is to solve the problem that there is often insufficient connection strength when the retaining pile is connected to the foundation pit ground in the prior art. Since the retaining pile mainly bears the lateral pressure of the soil mass, once it is affected by a large pressure or external force, the retaining pile is prone to rotation, detachment or loosening, thus affecting the overall stability and safety of the foundation pit, and to propose a foundation pit support device for a retaining pile in civil engineering construction.

[0005] In order to achieve the above purpose, the present invention adopts the following technical scheme:

[0006] A retaining pile foundation pit support device for civil construction engineering, including a retaining pile, a resistance component is arranged on the retaining pile, the resistance component includes a first threaded rod movably connected inside the retaining pile, a round pile sliding ring, and a second trapezoidal block, and a first resistance plate and a second resistance plate symmetrically and movably connected inside the retaining pile. The rotation of the first threaded rod makes the round pile sliding ring and the second trapezoidal block move upward simultaneously. The upward movement of the round pile sliding ring and the second trapezoidal block respectively pushes the first resistance plate and the second resistance plate to extend towards both sides of the retaining pile, so that the first resistance plate and the second resistance plate respectively increase the contact with the soil in the middle and lower parts of the retaining pile. A stabilizing component is arranged on the retaining pile, and the stabilizing component includes a first gear rotating inside the retaining pile, and second gears, second threaded rods, and inserting rods symmetrically rotating outside the retaining pile. The rotation of the first threaded rod drives the rotation of the first gear, the rotation of the first gear drives the rotation of the second gear, the rotation of the second gear makes the second threaded rod move downward, and the downward movement of the second threaded rod drives the inserting rod to be fixed on the ground.

[0007] The above technical solution further includes:

[0008] A square groove is opened at the upper part of the first threaded rod, a square block is movably connected in the square groove, a grip rotating rod is fixedly connected to one side of the square block away from the square groove, the grip rotating rod drives the square block to insert into the square groove, and the rotation of the grip rotating rod drives the first threaded rod to rotate accordingly.

[0009] A housing is fixedly connected to the outside of the retaining pile, fixing plates are fixedly connected to both sides of the retaining pile, and the second gear is movably connected between the fixing plates, and the fixing plates limit the position of the second gear.

[0010] The second threaded rod is movably connected between the fixing plates, the second threaded rod is meshed with the second gear, a limiting groove is opened on the outside of the second threaded rod, and the limiting groove and the limiting block are combined with each other to limit the moving position of the second threaded rod.

[0011] A limiting block is fixedly connected to the side surface of the fixing plate, the limiting block is slidably connected with the limiting groove, a plate is fixedly connected to one end of the second threaded rod away from the grip rotating rod, and a fixing connection is provided between one side of the plate away from the second threaded rod and the inserting rod, and the second threaded rod moves downward through the limitation of the limiting groove and the limiting block.

[0012] First slide rails are symmetrically and fixedly connected inside the retaining pile, sliders are slidably connected to the bottoms of the two first slide rails, a pushing plate is fixedly connected to one side of the slider away from the first slide rail, and the slider limits the moving position of the pushing plate.

[0013] A support rod is fixedly connected inside the support pile. The first threaded rod is slidably connected to the support rod. The support rod is slidably connected to the circular pile sliding ring. The circular pile sliding ring is threadedly connected to the first threaded rod. Rotating the first threaded rod drives the circular pile sliding ring to move upward.

[0014] Connecting rods are symmetrically and movably connected to the outer side of the circular pile sliding ring. The two connecting rods are movably connected to the pushing plate. The side of the pushing plate away from the circular pile sliding ring is fixedly connected to the first resistance plate. The first resistance plate is movably connected to the support pile. The pushing plate pushes the first resistance plate to extend to both sides of the support pile. The upward-moving circular pile sliding ring pushes the two pushing plates to move to both sides on the first slide rail through the connecting rods.

[0015] Second slide rails are symmetrically and fixedly connected inside the support pile. Chute grooves are provided on the sides of the two second slide rails. First trapezoidal blocks are symmetrically and slidably connected to the outer sides of the chute grooves. The second trapezoidal block squeezes the two first trapezoidal blocks to move to both sides inside the second slide rail.

[0016] A convex groove is provided on the side of the first trapezoidal block. The second trapezoidal block is slidably connected to the convex groove. The second trapezoidal block is threadedly connected to the first threaded rod. The first trapezoidal block is fixedly connected to the second resistance plate. The second resistance plate is movably connected to the support pile. The moving first trapezoidal block pushes the second resistance plate to contact the soil outside the support pile.

[0017] The present invention has the following beneficial effects:

[0018] 1. In the present invention, by rotating the first threaded rod in the resistance component, the circular pile sliding ring and the second trapezoidal block are simultaneously driven to move upward, thereby pushing the first resistance plate and the second resistance plate to extend to both sides of the support pile, increasing the contact area between the support pile and the soil, and significantly improving the connection strength between the support pile and the foundation pit ground. Under the action of the lateral soil pressure, the resistance component can effectively resist the rotation, falling off or loosening of the support pile, ensuring the stability and reliability of the support pile, and thus greatly enhancing the overall safety and stability of the foundation pit.

[0019] 2. In the present invention, by rotating the first threaded rod in the stability component, the first gear is driven to rotate, and then the second gear is driven to rotate, so that the second threaded rod moves downward and pushes the insertion rod to be fixed on the ground, enhancing the connection stability between the support pile and the foundation pit ground, and effectively preventing the support pile from rotating, falling off or loosening under the action of the lateral soil pressure. The addition of the stability component significantly improves the bearing capacity and lateral pressure resistance of the support pile, ensuring the overall stability and safety of the foundation pit, and providing a more reliable and stable support guarantee for the construction of civil engineering projects. Description of the Drawings

[0020] Figure 1Schematic diagram of the overall structure of a retaining pile foundation pit support device proposed by the present invention;

[0021] Figure 2 Schematic diagram of the overall front sectional structure in the present invention;

[0022] Figure 3 Schematic diagram of the overall side sectional structure in the present invention;

[0023] Figure 4 Schematic diagram of the front sectional structure of the retaining pile in the present invention;

[0024] Figure 5 Schematic diagram of the structure of the stabilizing component in the present invention;

[0025] Figure 6 Schematic diagram of the first part of the structure of the resistance component in the present invention;

[0026] Figure 7 Schematic diagram of the second part of the structure of the resistance component in the present invention;

[0027] Figure 8 is Figure 5 Enlarged schematic diagram of the structure at A in.

[0028] In the figure: 1, retaining pile; 2, outer shell; 3, grip turning rod; 4, first threaded rod; 5, regular cube; 6, regular square groove; 7, first gear; 8, second threaded rod; 9, limiting groove; 10, second gear; 11, plate; 12, insertion rod; 13, fixing plate; 14, limiting block; 15, first slide rail; 16, slider; 17, support rod; 18, round pile sliding ring; 19, pushing plate; 20, connecting rod; 21, first resistance plate; 22, chute; 23, first trapezoidal block; 24, convex groove; 25, second trapezoidal block; 26, second resistance plate; 27, second slide rail. Detailed implementation manners

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0030] Embodiment 1

[0031] As Figure 1 - Figure 8As shown in the figure, a foundation pit support device for civil engineering and construction support piles proposed by the present invention includes a support pile 1. A resistance component is provided on the support pile 1. The resistance component includes a first threaded rod 4 movably connected inside the support pile 1, a round pile sliding ring 18, and a second trapezoidal block 25, as well as a first resistance plate 21 and a second resistance plate 26 symmetrically and movably connected inside the support pile 1. The rotation of the first threaded rod 4 causes the round pile sliding ring 18 and the second trapezoidal block 25 to move upward simultaneously. The upward movement of the round pile sliding ring 18 and the second trapezoidal block 25 respectively push the first resistance plate 21 and the second resistance plate 26 to extend to both sides of the support pile 1, so that the first resistance plate 21 and the second resistance plate 26 respectively increase the contact with the soil in the middle and lower parts of the support pile 1. A stability component is provided on the support pile 1. The stability component includes a first gear 7 rotatably connected inside the support pile 1, and a second gear 10, a second threaded rod 8, and a plug rod 12 symmetrically rotatably connected outside the support pile 1. The rotation of the first threaded rod 4 drives the rotation of the first gear 7. The rotation of the first gear 7 drives the rotation of the second gear 10. The rotation of the second gear 10 causes the second threaded rod 8 to move downward. The downward movement of the second threaded rod 8 drives the plug rod 12 to be fixed on the ground.

[0032] First sliding rails 15 are symmetrically and fixedly connected inside the support pile 1. Sliders 16 are slidably connected to the bottoms of the two first sliding rails 15. A push plate 19 is fixedly connected to the side of the slider 16 away from the first sliding rail 15. The slider 16 restricts the movement position of the push plate 19.

[0033] A support rod 17 is fixedly connected inside the support pile 1. The first threaded rod 4 is slidably connected with the support rod 17. The support rod 17 is slidably connected with the round pile sliding ring 18. The round pile sliding ring 18 is threadedly connected with the first threaded rod 4. The rotating first threaded rod 4 drives the round pile sliding ring 18 to move upward.

[0034] Connecting rods 20 are symmetrically and movably connected to the outside of the round pile sliding ring 18. The two connecting rods 20 are movably connected with the push plate 19. A fixed connection is provided between the side of the push plate 19 away from the round pile sliding ring 18 and the first resistance plate 21. The first resistance plate 21 is movably connected with the support pile 1. The push plate 19 pushes the first resistance plate 21 to extend to both sides of the support pile 1. The upwardly moving round pile sliding ring 18 pushes the two push plates 19 to move to both sides on the first sliding rails 15 through the connecting rods 20.

[0035] Second sliding rails 27 are symmetrically and fixedly connected inside the support pile 1. Chute grooves 22 are provided on the sides of the two second sliding rails 27. First trapezoidal blocks 23 are symmetrically slidably connected to the outside of the chute grooves 22. The second trapezoidal block 25 squeezes the two first trapezoidal blocks 23 to move to both sides in the second sliding rails 27.

[0036] The side of the first trapezoidal block 23 is provided with a convex groove 24, the second trapezoidal block 25 is slidably connected with the convex groove 24, the second trapezoidal block 25 is threadedly connected with the first threaded rod 4, the first trapezoidal block 23 is fixedly connected with the second resistance plate 26, the second resistance plate 26 is movably connected with the support pile 1, and the movable first trapezoidal block 23 pushes the second resistance plate 26 to contact the soil outside the support pile 1.

[0037] In this embodiment, when the support pile 1 needs to be inserted into the foundation pit ground, the grip turning rod 3 is removed, so that the holes opened on both sides of the support pile 1 are flush with the side of the lateral pressure of the foundation pit. At this time, workers or machines hammer the upper part of the support pile 1 to insert the support pile 1 into the foundation pit ground. When the bottom of the housing 2 contacts the ground, the grip turning rod 3 drives the regular block 5 to insert into the regular groove 6. At this time, the grip turning rod 3 is rotated, and the grip turning rod 3 drives the first threaded rod 4 to rotate accordingly. The rotating first threaded rod 4 simultaneously drives the round pile sliding ring 18 and the second trapezoidal block 25 to move upward. The upward moving round pile sliding ring 18 pushes the two pushing plates 19 to move outward on the first sliding rail 15 through the connecting rod 20. The two outward moving pushing plates 19 push the first resistance plate 21 to extend to both sides of the support pile 1. The first resistance plate 21 is inserted into the soil to increase the contact area between the middle part of the support pile 1 and the soil. The end of the first resistance plate 21 is in a tip shape to reduce the resistance of the first resistance plate 21 when inserted into the soil. The first resistance plate 21 is attached to the opening on the side of the support pile 1 so that the soil cannot enter the inside of the support pile 1. When the second trapezoidal block 25 moves upward, the second trapezoidal block 25 squeezes the two first trapezoidal blocks 23 to move outward on the second sliding rail 27. The moving first trapezoidal block 23 pushes the second resistance plate 26 to contact the soil outside the support pile 1 to increase the contact area between the bottom of the support pile 1 and the soil. When the first threaded rod 4 rotates in the reverse direction, the round pile sliding ring 18 and the second trapezoidal block 25 move downward, driving the first resistance plate 21 and the second resistance plate 26 to retract into the support pile 1, which is convenient for the removal of the support pile 1. The contact between the first resistance plate 21 and the second resistance plate 26 and the soil enhances the resistance of the support pile 1 to lateral pressure.

[0038] Embodiment 2

[0039] As Figure 1 - Figure 8 shown, based on Embodiment 1, the upper part of the first threaded rod 4 is provided with a regular groove 6. A regular block 5 is movably connected in the regular groove 6. A grip turning rod 3 is fixedly connected to the side of the regular block 5 away from the regular groove 6. The grip turning rod 3 drives the regular block 5 to insert into the regular groove 6, and the rotation of the grip turning rod 3 drives the first threaded rod 4 to rotate accordingly.

[0040] A housing 2 is fixedly connected to the outside of the support pile 1. Fixed plates 13 are fixedly connected to both sides of the support pile 1. The second gear 10 is movably connected to the fixed plate 13, and the fixed plate 13 restricts the position of the second gear 10.

[0041] The second threaded rod 8 is movably connected to the fixed plate 13. The second threaded rod 8 meshes with the second gear 10. A limiting groove 9 is formed on the outside of the second threaded rod 8. The limiting groove 9 and the limiting block 14 are combined with each other to restrict the moving position of the second threaded rod 8.

[0042] A limiting block 14 is fixedly connected to the side surface of the fixed plate 13. The limiting block 14 is slidably connected to the limiting groove 9. One end of the second threaded rod 8 away from the grip turning rod 3 is fixedly connected to a plate 11. A rod 12 is fixedly connected to the side of the plate 11 away from the second threaded rod 8. The second threaded rod 8 moves downward under the limitation of the limiting groove 9 and the limiting block 14.

[0043] In this embodiment, through the above description, when the bottom of the housing 2 is flush with the ground, the rotation of the first threaded rod 4 is driven by the grip turning rod 3. The rotation of the first threaded rod 4 drives the rotation of the first gear 7. The rotation of the first gear 7 drives the rotation of the second gears 10 on both sides. The rotation of the second gears 10 causes the second threaded rod 8 to move downward under the limitation of the limiting groove 9 and the limiting block 14. The downward moving second threaded rod 8 pushes the rod 12 into the ground on both sides of the support pile 1, enhancing the stability of the support pile 1. When the first threaded rod 4 rotates in the reverse direction, the first gear 7 follows the rotation of the first threaded rod 4. The rotation of the first gear 7 drives the second gear 10, causing the second gear 10 to drive the second threaded rod 8 back to its original position, making it convenient to retract the support pile 1. Moreover, the grip turning rod 3 can be reused, improving the use effect.

[0044] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A support pile foundation pit support device for civil engineering, comprising a support pile (1), characterized in that: The support pile (1) is provided with a resistance assembly, the resistance assembly comprising a first threaded rod (4), a pile slip ring (18), and a second trapezoidal block (25) movably connected inside the support pile (1), and a first resistance plate (21) and a second resistance plate (26) symmetrically movably connected inside the support pile (1), the rotation of the first threaded rod (4) causes the pile slip ring (18) and the second trapezoidal block (25) to move upward at the same time, and the upward movement of the pile slip ring (18) and the second trapezoidal block (25) respectively pushes the first resistance plate (21) and the second resistance plate (26) to extend toward both sides of the support pile (1), so that the first resistance plate (21) and the second The resistance plate (26) increases the contact between the middle and lower parts of the supporting pile (1) and the soil respectively. The supporting pile (1) is provided with a stabilizing assembly, which comprises a first gear (7) rotating inside the supporting pile (1), and a second gear (10), a second threaded rod (8) and an insertion rod (12) rotating symmetrically outside the supporting pile (1). The rotation of the first threaded rod (4) drives the first gear (7) to rotate, the rotation of the first gear (7) drives the second gear (10) to rotate, the rotation of the second gear (10) causes the second threaded rod (8) to move downward, and the downward movement of the second threaded rod (8) drives the insertion rod (12) to be fixed on the ground.

2. A civil engineering construction project support pile foundation pit support device according to claim 1, characterized in that: A square groove (6) is provided on the upper part of the first threaded rod (4), a square block (5) is movably connected in the square groove (6), and a handle rotating rod (3) is fixedly connected to the side of the square block (5) away from the square groove (6).

3. A civil engineering construction project support pile foundation pit support device according to claim 1, characterized in that: The outer side of the support pile (1) is fixedly connected to a housing (2), both sides of the support pile (1) are fixedly connected to fixing plates (13), and the second gear (10) is movably connected to the fixing plates (13).

4. A civil engineering construction project support pile foundation pit support device according to claim 1, characterized in that: The second threaded rod (8) is movably connected to the fixed plate (13), the second threaded rod (8) is meshed with the second gear (10), and a limiting groove (9) is provided on the outer side of the second threaded rod (8).

5. A civil engineering construction project support pile foundation pit support device according to claim 3, characterized in that: A side surface of the fixing plate (13) is fixedly connected to a limiting block (14), and the limiting block (14) is slidably connected to the limiting groove (9). An end of the second threaded rod (8) away from the handle rotating rod (3) is fixedly connected to a plate (11), and a side of the plate (11) away from the second threaded rod (8) is fixedly connected to the insertion rod (12).

6. A civil engineering construction project support pile foundation pit support device according to claim 1, characterized in that: The support pile (1) is symmetrically and fixedly connected to the inside with a first slide rail (15), the bottoms of the two first slide rails (15) are slidably connected with a slider (16), and the side of the slider (16) away from the first slide rail (15) is fixedly connected with a push plate (19).

7. A civil engineering construction project support pile foundation pit support device according to claim 1, characterized in that: A support rod (17) is fixedly connected inside the support pile (1), the first threaded rod (4) is slidably connected to the support rod (17), the support rod (17) is slidably connected to the round pile slip ring (18), and the round pile slip ring (18) is threadedly connected to the first threaded rod (4).

8. A civil engineering construction project support pile foundation pit support device according to claim 6, characterized in that: The outer side of the round pile slip ring (18) is symmetrically and movably connected with a connecting rod (20), the two connecting rods (20) are movably connected to a push plate (19), the side of the push plate (19) away from the round pile slip ring (18) is fixedly connected to a first resistance plate (21), and the first resistance plate (21) is movably connected to the support pile (1).

9. A civil engineering construction project support pile foundation pit support device according to claim 1, characterized in that: The support pile (1) is symmetrically and fixedly connected with a second slide rail (27) inside, and the sides of the two second slide rails (27) are each provided with a slide groove (22), and the outer sides of the slide groove (22) are symmetrically and slidably connected with a first trapezoidal block (23).

10. A civil engineering construction project support pile foundation pit support device according to claim 9, characterized in that: A convex groove (24) is provided on the side of the first trapezoidal block (23); the second trapezoidal block (25) is slidably connected to the convex groove (24); the second trapezoidal block (25) is threadedly connected to the first threaded rod (4); the first trapezoidal block (23) is fixedly connected to the second resistance plate (26); and the second resistance plate (26) is movably connected to the support pile (1).

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