Multi-stage grouting cast-in-place concrete pile

Abstract

The utility model discloses a multi-stage grouting cast-in-place concrete pile, relates to the technical field of cast-in-place piles, and solves the problems that when two cast-in-place piles are spliced and formed and are not provided with a sealing mechanism, concrete is easy to flow out from the joint of the two cast-in-place piles, so that the concrete is wasted, and comprises a first cast-in-place pile, a second cast-in-place pile and a third cast-in-place pile, a second cast-in-place pile is connected to one side of the first cast-in-place pile, two splicing mechanisms used for splicing the cast-in-place piles are fixed to the outer wall of the first cast-in-place pile in the vertical direction, and two sealing mechanisms used for sealing the splicing mechanisms are arranged on the inner wall of the second cast-in-place pile. The connecting block and the soft rubber on the first cast-in-place pile are aligned with the sealing groove in the second cast-in-place pile, the first cast-in-place pile and the second cast-in-place pile are spliced, the soft rubber and the sealing groove are in interference fit, and therefore the connecting position is effectively sealed, and the situation that concrete leaks can be effectively reduced.

Description

Technical Field

[0001] The utility model relates to the field of cast-in-place piles, in particular to a multi-stage grouting concrete cast-in-place pile. Background Art

[0002] A building mold is a temporary support structure, which is made according to the design requirements to shape the concrete structure and components according to the specified position and geometric size, maintain its correct position, and bear the weight of the building mold and the external load acting on it. The purpose of the formwork project is to ensure the quality and construction safety of the concrete project, speed up the construction progress and reduce the project cost. A concrete cast-in-place pile is a pile made by drilling in place and pouring concrete or reinforced concrete. According to factors such as the nature of the stratum, pile length, bearing capacity increase and the use function of the pile, pile bottom grouting, pile side grouting and pile bottom and pile side compound grouting can be used. It is suitable for large-scale engineering construction such as high-rise buildings and bridges.

[0003] A concrete cast-in-place pile disclosed in a Chinese utility model (Announcement No.: CN213926230U) includes a pipe pile body, which is formed by splicing a first pipe pile mold and a second pipe pile mold. The top of the pipe pile body is sleeved with a top fixing ring through a first connecting frame, and a protective cover is embedded and connected to the top fixing ring through a support frame. The first pipe pile mold and the second pipe pile mold are spliced ​​together through the first fixing frame and the second fixing frame, and pouring begins. After the pouring is completed, the protective cover is fixed to the top fixing ring through the support frame, so as to protect the poured material from rain.

[0004] In the above technical solution, the first pipe pile mold and the second pipe pile mold are spliced ​​together by the first fixing frame and the second fixing frame, and pouring is started. After the pouring is completed, the protective cover is fixed to the top fixing ring by the support frame, so as to protect the poured material from rain. When in use, although it can splice and disassemble the bored piles, it uses two bored piles for splicing and forming, and no sealing mechanism is set. When pouring concrete, the concrete is easy to flow out from the connection between the two bored piles, resulting in waste of concrete. Therefore, a multi-stage grouting concrete bored pile is now proposed. Utility Model Content

[0005] In order to improve the splicing and forming of two bored piles, no sealing mechanism is provided. When pouring concrete, the concrete easily flows out from the connection of the two bored piles, resulting in the problem of concrete waste. The utility model provides a multi-stage grouting concrete bored pile.

[0006] The utility model provides a multi-stage grouting concrete pile, which adopts the following technical scheme:

[0007] A multi-stage grouting concrete bored pile comprises a first bored pile, one side of the first bored pile is connected to a second bored pile, two splicing mechanisms for splicing the bored piles are fixed in the vertical direction of the outer wall of the first bored pile, the inner wall of the second bored pile is provided with two sealing mechanisms for sealing the splicing mechanisms, the first bored pile and the second bored pile are both installed with reinforcing mechanisms for concrete canning, the lower ends of the first bored pile and the second bored pile are both connected to limiting mechanisms for stabilizing the bored piles, and a vibration mechanism for auxiliary concrete pouring is fixed inside the limiting mechanisms.

[0008] By adopting the above technical solution, the first cast-in-place pile and the second cast-in-place pile are provided, so that the cast-in-place pile can be easily assembled or disassembled.

[0009] Optionally, the splicing mechanism includes a connecting piece, two of which are provided, both of which are fixed to the outer wall of the first cast-in-place pile, one side of each of the two connecting pieces is connected to a fixing plate fixed to the second cast-in-place pile, and fixing bolts are installed inside the two connecting pieces, and the ends of the fixing bolts are threadedly connected to threaded holes opened on the fixing plate.

[0010] By adopting the above technical solution, the fixing bolts on the connecting member are tightened by a tool so that the ends of the fixing bolts are threadedly connected with the threaded holes on the fixing plate, thereby fixing the first cast-in-place pile and the second cast-in-place pile.

[0011] Optionally, the sealing mechanism includes a sealing groove, wherein two sealing grooves are provided, both of which are opened on the inner wall of the second cast-in-place pile, and the interiors of the two sealing grooves are connected to a connecting block fixed to the first cast-in-place pile, and a soft rubber is fixed to one side of the connecting block, and the soft rubber is interference fit with the sealing groove.

[0012] By adopting the above technical solution, the first cast-in-place pile and the second cast-in-place pile are spliced ​​by aligning the connecting block and the soft rubber on the first cast-in-place pile with the sealing groove on the second cast-in-place pile, so that the soft rubber and the sealing groove achieve interference fit, thereby effectively sealing the connection and effectively reducing the possibility of concrete leakage.

[0013] Optionally, the reinforcement mechanism includes a steel cage, which is arranged inside the first cast-in-place pile and the second cast-in-place pile, and a plurality of reinforcing ribs are fixed in the vertical direction of the inner wall of the steel cage.

[0014] By adopting the above technical solution, the overall strength of the poured concrete can be enhanced by setting the steel cage and reinforcing bars.

[0015] Optionally, two connecting bars are fixed to the outer surface of the steel cage, and the ends of the two connecting bars are respectively engaged with limiting holes, and the two limiting holes are respectively opened at the upper ends of the first cast-in-place pile and the second cast-in-place pile.

[0016] By adopting the above technical solution, the two connecting bars on the steel cage are respectively engaged with the two limiting holes through the limiting holes on the first cast-in-place pile and the second cast-in-place pile, so as to fix the steel cage, thereby effectively reducing the horizontal displacement of the steel cage when pouring concrete and improving the reinforcement effect of the concrete.

[0017] Optionally, the limiting mechanism includes a fixing seat, which is arranged at the lower ends of the first cast-in-place pile and the second cast-in-place pile, a limiting groove is provided inside the fixing seat, and a protective plate is fixed to the lower end of the fixing seat by bolts.

[0018] By adopting the above technical solution, the lower end of the spliced ​​cast-in-place pile is inserted into the limiting groove through the limiting groove provided on the fixing seat, thereby limiting the cast-in-place pile.

[0019] Optionally, the vibration mechanism includes a dual-axis motor, which is fixed to the upper end of the fixed seat by bolts, and the power output shaft of the dual-axis motor is fixed with a transmission rod, the end of the transmission rod is rotatably connected to the inner wall of the fixed seat through a bearing, and three eccentric wheels are fixed to the outer surface of the transmission rod.

[0020] By adopting the above technical solution, the dual-axis motor drives the transmission rod to rotate, thereby driving the eccentric wheel to operate. At this time, the fixed seat generates vibration, so that the vibration force is transmitted to the inside of the concrete, which can make the concrete densely combined and eliminate the honeycombed surface of the concrete. By removing the protective plate, it is convenient to maintain the vibration mechanism.

[0021] In summary, the utility model has the following beneficial effects:

[0022] The utility model uses a tool to tighten the fixing bolt on the connecting piece so that the end of the fixing bolt is threadedly connected with the threaded hole on the fixing plate, thereby fixing the first cast-in-place pile and the second cast-in-place pile; the first cast-in-place pile and the second cast-in-place pile are spliced ​​by aligning the connecting block and the soft rubber on the first cast-in-place pile with the sealing groove on the second cast-in-place pile, so that the soft rubber and the sealing groove are interference-fitted, thereby effectively sealing the connection, and effectively reducing the leakage of concrete;

[0023] The utility model uses the limiting holes on the first cast-in-place pile and the second cast-in-place pile to respectively engage the two connecting bars on the steel cage with the two limiting holes, so as to fix the steel cage, thereby effectively reducing the horizontal displacement of the steel cage when pouring concrete and improving the reinforcement effect on the concrete; the double-axis motor drives the transmission rod to rotate, thereby driving the eccentric wheel to run, and the fixed seat generates vibration at this time, so that the vibration force is transmitted to the inside of the concrete, which can make the concrete densely combined and eliminate the phenomenon of honeycombed surface of the concrete. By removing the protective plate, it is convenient to maintain the vibration mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0025] Figure 2 It is a schematic diagram of the structure of the connection between the first cast-in-place pile and the second cast-in-place pile of the utility model;

[0026] Figure 3 It is a schematic diagram of the cross-sectional structure of the fixing seat of the utility model;

[0027] Figure 4 It is a three-dimensional structural schematic diagram of the steel cage of the utility model.

[0028] Description of reference numerals:

[0029] 1. First cast-in-place pile; 2. Second cast-in-place pile; 3. Connector; 301. Fixing plate; 302. Fixing bolt; 303. Threaded hole; 4. Sealing groove; 401. Connecting block; 402. Soft rubber; 5. Steel cage; 501. Reinforcing rib; 502. Connecting strip; 503. Limiting hole; 6. Fixing seat; 601. Limiting groove; 7. Dual-axis motor; 701. Transmission rod; 702. Eccentric wheel; 8. Protective plate. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-Figure 4 This application is described in further detail.

[0031] Please refer to Figure 1-Figure 4 A multi-stage grouting concrete bored pile comprises a first bored pile 1, one side of the first bored pile 1 is connected to a second bored pile 2, two splicing mechanisms for splicing the bored piles are fixed in the vertical direction of the outer wall of the first bored pile 1, the inner wall of the second bored pile 2 is provided with two sealing mechanisms for sealing the splicing mechanisms, the first bored pile 1 and the second bored pile 2 are both installed with a reinforcing mechanism for concrete canning, the lower ends of the first bored pile 1 and the second bored pile 2 are both connected with a limiting mechanism for stabilizing the bored piles, and a vibration mechanism for auxiliary concrete pouring is fixed inside the limiting mechanism, and the first bored pile 1 and the second bored pile 2 are provided, so that the bored piles can be easily assembled or disassembled.

[0032] Reference Figure 1 and Figure 2 The splicing mechanism includes a connecting member 3, two connecting members 3 are provided, the two connecting members 3 are fixed to the outer wall of the first cast-in-place pile 1, one side of the two connecting members 3 is connected to a fixing plate 301 fixed to the second cast-in-place pile 2, and fixing bolts 302 are installed inside the two connecting members 3, and the ends of the fixing bolts 302 are threadedly connected to threaded holes 303 provided on the fixing plates 301. The fixing bolts 302 on the connecting members 3 are tightened by a tool so that the ends of the fixing bolts 302 are threadedly connected to the threaded holes 303 on the fixing plates 301, thereby fixing the first cast-in-place pile 1 and the second cast-in-place pile 2;

[0033] The sealing mechanism includes a sealing groove 4, and two sealing grooves 4 are provided. The two sealing grooves 4 are both opened on the inner wall of the second cast-in-place pile 2. The interiors of the two sealing grooves 4 are connected with a connecting block 401 fixed to the first cast-in-place pile 1. A soft rubber 402 is fixed to one side of the connecting block 401. The soft rubber 402 and the sealing groove 4 are interference fit. The first cast-in-place pile 1 and the second cast-in-place pile 2 are spliced ​​by aligning the connecting block 401 and the soft rubber 402 on the first cast-in-place pile 1 with the sealing groove 4 on the second cast-in-place pile 2, so that the soft rubber 402 and the sealing groove 4 are interference fit, thereby effectively sealing the connection, which can effectively reduce the leakage of concrete.

[0034] Reference Figure 1 , Figure 3 and Figure 4 The reinforcement mechanism includes a steel cage 5, which is arranged inside the first cast-in-place pile 1 and the second cast-in-place pile 2. A plurality of reinforcing ribs 501 are fixed to the inner wall of the steel cage 5 in the vertical direction. The steel cage 5 and the reinforcing ribs 501 can enhance the overall strength of the poured concrete. Two connecting bars 502 are fixed to the outer surface of the steel cage 5. The ends of the two connecting bars 502 are respectively engaged with the limiting holes 503. The two limiting holes 503 are respectively opened at the upper ends of the first cast-in-place pile 1 and the second cast-in-place pile 2. The two connecting bars 502 on the steel cage 5 are respectively engaged with the two limiting holes 503 through the limiting holes 503 on the first cast-in-place pile 1 and the second cast-in-place pile 2, so as to fix the steel cage 5, thereby effectively reducing the horizontal displacement of the steel cage 5 during the pouring of concrete and improving the reinforcement effect on the concrete.

[0035] The limiting mechanism includes a fixing seat 6, which is arranged at the lower end of the first cast-in-place pile 1 and the second cast-in-place pile 2. A limiting groove 601 is provided inside the fixing seat 6. A protective plate 8 is fixed to the lower end of the fixing seat 6 by bolts. The lower end of the spliced ​​cast-in-place pile is inserted into the limiting groove 601 through the limiting groove 601 provided on the fixing seat 6, thereby limiting the cast-in-place pile.

[0036] The vibration mechanism includes a dual-axis motor 7, which is fixed to the upper end of the fixed seat 6 by bolts. The power output shaft of the dual-axis motor 7 is fixed with a transmission rod 701. The end of the transmission rod 701 is rotatably connected to the inner wall of the fixed seat 6 through a bearing. Three eccentric wheels 702 are fixed to the outer surface of the transmission rod 701. The dual-axis motor 7 drives the transmission rod 701 to rotate, thereby driving the eccentric wheels 702 to run. At this time, the fixed seat 6 vibrates, so that the vibration force is transmitted to the inside of the concrete, which can make the concrete densely combined and eliminate the honeycombed surface of the concrete. By removing the protective plate 8, it is convenient to maintain the vibration mechanism.

[0037] The implementation principle of the utility model is as follows: before using the multi-stage grouting concrete bored pile, first align the connecting block 401 and the soft rubber 402 on the first bored pile 1 with the sealing groove 4 on the second bored pile 2, then splice the first bored pile 1 and the second bored pile 2, so that the soft rubber 402 and the sealing groove 4 are interference fit, thereby effectively sealing the connection, and then use a tool to tighten the fixing bolt 302 on the connecting piece 3, so that the end of the fixing bolt 302 and the threaded hole 303 on the fixing plate 301 are threadedly connected, thereby fixing the first bored pile 1 and the second bored pile 2, and inserting the lower end of the spliced ​​bored pile into the limiting groove 601 through the limiting groove 601 provided on the fixing seat 6, thereby limiting the bored pile, reducing the first bored pile 1 and the second bored pile 2 when pouring concrete. In the event of displacement, before pouring concrete, the steel cage 5 and the reinforcing bar 501 are first placed inside the first cast-in-place pile 1 and the second cast-in-place pile 2, and the two connecting bars 502 on the steel cage 5 are respectively engaged with the two limiting holes 503 through the limiting holes 503 on the first cast-in-place pile 1 and the second cast-in-place pile 2, so as to fix the steel cage 5, thereby effectively reducing the horizontal displacement of the steel cage 5 during concrete pouring and improving the reinforcement effect of the concrete. When pouring concrete, the dual-axis motor 7 is started to drive the transmission rod 701 to rotate, thereby driving the eccentric wheel 702 to run. At this time, the fixed seat 6 vibrates, so that the vibration force is transmitted to the inside of the concrete, which can make the concrete densely combined and eliminate the honeycombed surface of the concrete. By removing the protective plate 8, it is convenient to maintain the vibration mechanism and use it conveniently.

[0038] The above are all preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A multi-stage grouting concrete bored pile, comprising a first bored pile (1), one side of the first bored pile (1) being connected to a second bored pile (2), characterized in that: Two splicing mechanisms for splicing the cast-in-place piles are fixed in the vertical direction of the outer wall of the first cast-in-place pile (1), and two sealing mechanisms for sealing the splicing mechanisms are provided on the inner wall of the second cast-in-place pile (2). Reinforcement mechanisms for pouring concrete are installed inside the first cast-in-place pile (1) and the second cast-in-place pile (2). The lower ends of the first cast-in-place pile (1) and the second cast-in-place pile (2) are connected to limiting mechanisms for stabilizing the cast-in-place piles, and a vibration mechanism for assisting concrete pouring is fixed inside the limiting mechanisms.

2. A multi-stage grouting concrete pile according to claim 1, characterized in that: The splicing mechanism comprises a connecting piece (3), wherein two connecting pieces (3) are provided, and the two connecting pieces (3) are both fixed to the outer wall of the first cast-in-place pile (1), one side of the two connecting pieces (3) is connected to a fixing plate (301) fixed to the second cast-in-place pile (2), and the inside of the two connecting pieces (3) is installed with a fixing bolt (302), and the end of the fixing bolt (302) is threadedly connected to a threaded hole (303) provided on the fixing plate (301).

3. A multi-stage grouting concrete pile according to claim 1, characterized in that: The sealing mechanism comprises a sealing groove (4), wherein two sealing grooves (4) are provided, and the two sealing grooves (4) are both opened on the inner wall of the second cast-in-place pile (2), and the insides of the two sealing grooves (4) are both connected to a connecting block (401) fixed to the first cast-in-place pile (1), and a soft rubber (402) is fixed to one side of the connecting block (401), and the soft rubber (402) and the sealing groove (4) are interference fit.

4. The multi-stage grouting concrete pile according to claim 1, characterized in that: The reinforcement mechanism comprises a steel cage (5), wherein the steel cage (5) is arranged inside the first cast-in-place pile (1) and the second cast-in-place pile (2), and a plurality of reinforcement ribs (501) are fixed in the vertical direction of the inner wall of the steel cage (5).

5. A multi-stage grouting concrete pile according to claim 4, characterized in that: Two connecting bars (502) are fixed to the outer surface of the steel cage (5), the ends of the two connecting bars (502) are respectively engaged with limiting holes (503), and the two limiting holes (503) are respectively opened at the upper ends of the first cast-in-place pile (1) and the second cast-in-place pile (2).

6. The multi-stage grouting concrete pile according to claim 1, characterized in that: The limiting mechanism comprises a fixing seat (6), the fixing seat (6) being arranged at the lower ends of the first cast-in-place pile (1) and the second cast-in-place pile (2), a limiting groove (601) being provided inside the fixing seat (6), and a protective plate (8) being fixed to the lower end of the fixing seat (6) by means of bolts.

7. A multi-stage grouting concrete pile according to claim 6, characterized in that: The vibration mechanism comprises a dual-axis motor (7), the dual-axis motor (7) being fixed to the upper end of the interior of the fixing seat (6) by means of bolts, a transmission rod (701) being fixed to the power output shaft of the dual-axis motor (7), the end of the transmission rod (701) being rotatably connected to the inner wall of the fixing seat (6) by means of a bearing, and three eccentric wheels (702) being fixed to the outer surface of the transmission rod (701).

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