Vertical support device of steel concrete pile and column in reverse underground engineering

Abstract

The present invention discloses a vertical support device for piles and columns of steel concrete used in reverse underground engineering, which relates to the technical field of reverse underground engineering. The device comprises a base, a circular plate is slidably provided on the upper surface of the base, a support mechanism is provided between the base and the circular plate, a plurality of through holes are formed around the outer surface of the circular plate, a concrete rod is slidably provided inside each of the through holes, a pushing mechanism is provided between each of the concrete rods, a plurality of circular molds are slidably provided on the upper end of the circular plate, and a fixing mechanism is provided between the corresponding circular molds and the circular plate, and between the corresponding two circular molds. The present invention improves the stability of the concrete column by inserting each concrete rod into the soil through the concrete rod provided inside each through hole, thereby preventing the concrete column from tilting in the later stage.

Description

Technical Field

[0001] The invention relates to the technical field of reverse underground engineering, and in particular to a steel concrete pile-column vertical support device for reverse underground engineering. Background Art

[0002] The top-down construction method is an unconventional construction method, which is generally adopted in special circumstances such as deep foundations, complex geology, and high groundwater levels. Before work, it is usually necessary to cast or drive intermediate supporting piles and columns at relevant locations inside the building to serve as support for the deadweight of the superstructure and construction loads before the bottom slab is sealed during construction.

[0003] Among them, the publication number CN205399397U is a variable-section wall-type vertical support structure for the reverse construction method, which includes: a basement wall, the basement wall includes a basement wall steel cage and a basement wall concrete; the basement wall has a first thickness; a wall foundation, the wall foundation includes a wall foundation steel cage and a wall foundation concrete; the wall foundation extends downward from the bottom of the basement wall; the wall foundation has a second thickness, and the second thickness is greater than the first thickness; the connection between the basement wall and the wall foundation is the top elevation position of the basement floor.

[0004] However, the existing supporting structure simply inserts the concrete columns into the ground. After the concrete columns are inserted, they are easily tilted due to external collisions, which not only deteriorates the supporting effect but also affects the aesthetics of the building. Summary of the Invention

[0005] In view of the above-mentioned problems existing in the existing variable-section wall-type vertical support structure used in the reverse construction method, the present invention is proposed.

[0006] Therefore, the purpose of the present invention is to provide a vertical support device for steel concrete piles and columns for reverse underground engineering, which solves the problem of variable-section wall-type vertical support structure used in reverse construction.

[0007] In order to achieve the above object, the present invention provides the following technical solutions:

[0008] A vertical support device for piles and columns of steel concrete in reverse underground engineering, including a base, a circular plate slidably provided on the upper surface of the base, a supporting mechanism provided between the base and the circular plate, a plurality of through holes arranged around the outer surface of the circular plate, a concrete plug slidably provided inside each of the through holes, a pushing mechanism commonly provided between each of the concrete plugs, a plurality of circular molds slidably provided on the upper end of the circular plate, a fixing mechanism provided between the corresponding circular molds and the circular plate and between the corresponding two circular molds.

[0009] Preferably, the support mechanism includes a plurality of support rods and a plurality of blocks, each support rod is fixedly connected to the upper surface of the base, a plurality of cavities are opened inside the circular plate, one end of each support rod passes through the lower surface of the corresponding cavity, and each block is slidably arranged inside the corresponding cavity and fixedly connected to the upper end of the corresponding support rod.

[0010] Preferably, the pushing mechanism includes a conical block, a baffle, a telescopic rod and a plurality of springs, the conical block is fixedly connected to the upper surface of the base and matches each concrete plug, each baffle is fixedly connected to the upper surface of the corresponding concrete plug, each telescopic rod is fixedly connected between the circular plate and the corresponding baffle, and each spring is slidably sleeved on the rod wall of the corresponding telescopic rod.

[0011] Preferably, the fixing mechanism includes multiple plug-ins and multiple bolts, each of the plug-ins is fixedly connected to the circular plate and the upper end of each circular mold, and a slot is provided at the lower end of each circular mold, and each of the slots is matched with the corresponding plug-in plate, and an internal thread groove is provided on one side of each slot and each plug-in plate, and each of the bolts is threadedly sleeved on the inside of the corresponding internal thread groove.

[0012] Preferably, the circular mold includes two first mold plates, two second mold plates and a plurality of trapezoidal clips, each of the trapezoidal clips is fixedly connected to the two ends of the corresponding second mold plate, and each of the first mold plates has two trapezoidal slots on one side, and each of the trapezoidal clips is slidably arranged inside the corresponding trapezoidal slot.

[0013] Preferably, one end of each concrete insertion rod is provided with an inclined surface, and each inclined surface fits with the conical surface of the conical block.

[0014] Preferably, the base is made of cast concrete.

[0015] Preferably, the lower end of the base is in an inverted cone shape.

[0016] Preferably, the rod wall of each support rod is commonly sleeved with a circular sealing gasket.

[0017] In the above technical solution, the technical effects and advantages provided by the present invention are:

[0018] 1. By setting a concrete plug rod inside each through hole and inserting each concrete plug rod into the soil, the stability of the concrete column can be improved, thereby preventing the concrete column from tilting in the later stage.

[0019] 2. By splitting the circular mold into two first mold plates and two second mold plates, the recycling of the circular mold is facilitated, thereby making the device more environmentally friendly and saving costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the present invention;

[0021] Figure 2 For the present invention Figure 1 sectional view of

[0022] Figure 3 For the present invention Figure 2 Schematic diagram of the internal structure;

[0023] Figure 4 For the present invention Figure 1 Top view of the medium-shaped mold.

[0024] Description of reference numerals:

[0025] 1. Base; 2. Circular plate; 3. Concrete plug rod; 4. Circular mold; 5. Support rod; 6. Block; 7. Conical block; 8. Baffle; 9. Telescopic rod; 10. Spring; 11. Plug plate; 12. Bolt; 13. First mold plate; 14. Second mold plate; 15. Trapezoidal clip; 16. Circular sealing gasket. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0027] The embodiment of the present invention discloses a vertical support device for steel concrete piles and columns for reverse underground engineering.

[0028] Example 1

[0029] Reference Figure 1-3 , a vertical support device for piles and columns of reverse underground engineering steel concrete includes a base 1, a circular plate 2 is slidably provided on the upper surface of the base 1, a supporting mechanism is provided between the base 1 and the circular plate 2, and the supporting mechanism includes a plurality of support rods 5 and a plurality of blocks 6, each support rod 5 is fixedly connected to the upper surface of the base 1, a plurality of cavities are opened inside the circular plate 2, one end of each support rod 5 respectively passes through the lower surface of the corresponding cavity, each block 6 is respectively slidably provided inside the corresponding cavity and is respectively fixedly connected to the upper end of the corresponding support rod 5, and the base 1 is made of concrete.

[0030] First, a hole is pre-drilled in the ground, and then the base 1 of the device is placed downward into the hole. Because the base 1 is made of concrete, it has a large weight. At this time, each support rod 5 can be used to prevent the base 1 from separating from the circular plate 2 when falling, thereby playing a supporting role.

[0031] Reference Figure 1-3A plurality of through holes are provided around the outer surface of the circular plate 2, and a concrete plug rod 3 is slidably arranged inside each through hole. A pushing mechanism is commonly provided between each concrete plug rod 3, and the pushing mechanism includes a conical block 7, a baffle 8, a telescopic rod 9 and a plurality of springs 10. The conical block 7 is fixedly connected to the upper surface of the base 1 and matches each concrete plug rod 3. Each baffle 8 is respectively fixedly connected to the upper surface of the corresponding concrete plug rod 3, and each telescopic rod 9 is respectively fixedly connected between the circular plate 2 and the corresponding baffle 8. Each spring 10 is respectively slidably sleeved on the rod wall of the corresponding telescopic rod 9. One end of each concrete plug rod 3 is provided with an inclined surface, and each inclined surface fits the conical surface of the conical block 7.

[0032] When the base 1 falls to the bottom of the hole, the base 1 is stationary, but the circular plate 2 continues to move downward, and then the conical blocks 7 can squeeze the corresponding concrete plugs 3 respectively, and then the concrete plugs 3 can be inserted into the soil on both sides of the hole to play a supporting role and prevent the subsequent concrete support columns from tilting.

[0033] Reference Figure 1-3 A plurality of circular molds 4 are slidingly provided at the upper end of the circular plate 2, and a fixing mechanism is provided between the corresponding circular molds 4 and the circular plate 2 and between the corresponding two circular molds 4. The fixing mechanism includes a plurality of inserting plates 11 and a plurality of bolts 12. Each inserting plate 11 is fixedly connected to the upper end of the circular plate 2 and each circular mold 4, and a slot is provided at the lower end of each circular mold 4. Each slot is matched with the corresponding inserting plate 11, and an internal thread groove is provided on one side of each slot and each inserting plate 11, and each bolt 12 is threadedly sleeved on the inside of the corresponding internal thread groove.

[0034] Each circular mold 4 is inserted into the outer surface of each corresponding plug plate 11 in turn, and then each circular mold 4 can be fixed using each bolt 12. When the device falls into the hole and stabilizes, concrete can be poured into the interior of the circular mold 4 to complete the pouring of the concrete column.

[0035] Example 2

[0036] Based on the first embodiment, Figure 4 The circular mold 4 includes two first mold plates 13, two second mold plates 14 and multiple trapezoidal clips 15. Each trapezoidal clip 15 is fixedly connected to the two ends of the corresponding second mold plate 14. Two trapezoidal slots are provided on one side of each first mold plate 13. Each trapezoidal clip 15 is slidably arranged inside the corresponding trapezoidal slot.

[0037] The circular mold 4 is split into two first mold plates 13 and two second mold plates 14 to facilitate the recycling of the circular mold, thereby making the device more environmentally friendly and saving costs.

[0038] Example 3

[0039] Based on the first embodiment, Figure 1-3 , the lower end of the base 1 is in an inverted cone shape.

[0040] The inverted cone-shaped bottom can make it easier for the base 1 to be inserted into the soil, thereby further improving the stability of the concrete.

[0041] Example 4

[0042] Based on the first embodiment, Figure 1-3 The rod wall of each support rod 5 is commonly sleeved with a circular sealing gasket 16.

[0043] The circular sealing pad 16 can be used to prevent the concrete from falling off during concrete pouring.

Claims

1. A vertical support device for steel concrete piles and columns for reverse underground engineering, comprising a base (1), characterized in that: A circular plate (2) is slidably provided on the upper surface of the base (1), a supporting mechanism is provided between the base (1) and the circular plate (2), a plurality of through holes are provided around the outer surface of the circular plate (2), a concrete plug (3) is slidably provided inside each of the through holes, a pushing mechanism is provided between each of the concrete plugs (3), a plurality of circular molds (4) are slidably provided on the upper end of the circular plate (2), and a fixing mechanism is provided between the corresponding circular molds (4) and the circular plate (2) and between the corresponding two circular molds (4); The support mechanism comprises a plurality of support rods (5) and a plurality of stoppers (6), each support rod (5) being fixedly connected to the upper surface of the base (1), a plurality of cavities being provided inside the circular plate (2), one end of each support rod (5) respectively passing through the lower surface of the corresponding cavity, and each stopper (6) being slidably arranged inside the corresponding cavity and fixedly connected to the upper end of the corresponding support rod (5); The pushing mechanism comprises a conical block (7), a baffle (8), a telescopic rod (9) and a plurality of springs (10); the conical block (7) is fixedly connected to the upper surface of the base (1) and matches each concrete plug rod (3); each baffle (8) is respectively fixedly connected to the upper surface of the corresponding concrete plug rod (3); each telescopic rod (9) is respectively fixedly connected between the circular plate (2) and the corresponding baffle (8); and each spring (10) is respectively slidably sleeved on the rod wall of the corresponding telescopic rod (9); The fixing mechanism comprises a plurality of inserting plates (11) and a plurality of bolts (12), each of the inserting plates (11) being fixedly connected to the upper end of the circular plate (2) and each circular mold (4), a slot being provided at the lower end of each circular mold (4), each of the slots being matched with the corresponding inserting plates (11), an inner thread groove being provided on one side of each slot and each inserting plate (11), and each of the bolts (12) being threadedly sleeved on the inside of the corresponding inner thread groove; The circular mold (4) comprises two first mold plates (13), two second mold plates (14) and a plurality of trapezoidal clips (15), each of the trapezoidal clips (15) being fixedly connected to the two ends of the corresponding second mold plate (14), and each of the first mold plates (13) having two trapezoidal clip slots formed on one side, and each of the trapezoidal clip strips (15) being slidably arranged inside the corresponding trapezoidal clip slot; One end of each concrete insert rod (3) is provided with an inclined surface, and each inclined surface is fitted with the conical surface of the conical block (7); The rod wall of each support rod (5) is sleeved with a circular sealing gasket (16).

2. The reverse underground engineering steel concrete pile and column vertical support device according to claim 1 is characterized in that: The base (1) is made of concrete.

3. The reverse underground engineering steel concrete pile and column vertical support device according to claim 1 is characterized in that: The lower end of the base (1) is in an inverted cone shape.

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