Connecting structure of bottom plate and pile head

Abstract

According to the connecting structure of the bottom plate and the pile head, a plurality of connecting ribs are evenly distributed on the top of the pile head in the circumferential direction, a reinforcement cage is arranged in the bottom plate, the connecting ribs are inserted into the reinforcement cage, a gap is formed in the middle of the reinforcement cage, and the connecting ribs are inserted into the gap; in order to conveniently bend the connecting ribs inserted into the reinforcement cage, a connecting structure is arranged at the joint of the bottom plate and the pile head and comprises a connecting seat and an expanding plate, the bottom of the connecting seat is pre-buried in the pile head, the expanding plate is arranged in a gap of the reinforcement cage and is adjustably connected with the connecting seat, and the outer edge of the expanding plate abuts against the connecting ribs. And the connecting ribs arranged in the reinforcement cage are expanded by adjusting the expanding plate.

Description

Technical Field

[0001] The utility model belongs to the technical field of construction, and particularly relates to a connecting structure for a bottom plate and a pile head. Background Art

[0002] During the construction process of buildings, it is often necessary to construct the connection between the bottom plate and the pile head. In the current construction process, in order to increase the connection strength between the pile head and the bottom plate, the connecting steel bars at the top of the pile head are inserted into the steel reinforcement cage of the bottom plate, and then the connecting steel bars inserted into the steel reinforcement cage are bent outwards towards the pile head. However, this construction method has the following disadvantages: (1) After inserting the connecting steel bars at the top of the pile head into the steel reinforcement cage of the bottom plate, the steel reinforcement cage of the bottom plate will cause certain difficulties in bending the connecting steel bars, affecting the construction efficiency; (2) After bending the connecting steel bars at the top of the pile head first, the diameter of the circumference where the top of the connecting steel bar is located is larger, while the diameter of the circumference of the connecting steel bar at the bottom is smaller, resulting in the steel reinforcement cage being unable to abut against the top of the pile head, affecting the connection strength between the bottom plate and the pile head. Summary of the Invention

[0003] Aiming at the above deficiencies, the technical problem to be solved by the utility model is to provide a connecting structure for a bottom plate and a pile head, which is used to quickly bend the connecting steel bars arranged in the steel reinforcement cage of the bottom plate, and improve the connection efficiency between the bottom plate and the pile head on the premise of ensuring the connection strength between the bottom plate and the pile head.

[0004] To solve the above technical problems, the technical solution adopted by the utility model is

[0005] A connecting structure for a bottom plate and a pile head, wherein a plurality of connecting steel bars are evenly distributed in a circumferential manner at the top of the pile head, a steel reinforcement cage is arranged in the bottom plate, the connecting steel bars are inserted into the steel reinforcement cage, and the connecting structure includes a connecting seat and a spreading plate. The connecting seat is fixed in the pile head, the spreading plate is adjustably installed on the connecting seat, and the spreading plate abuts against the connecting steel bars to spread the connecting steel bars through the spreading plate.

[0006] As a preferred scheme of the utility model, the diameter of the spreading plate is larger than the diameter of the circumference where the plurality of connecting steel bars are located, so as to spread the connecting steel bars through the spreading plate.

[0007] As a preferred scheme of the utility model, the spreading plate is provided with guiding grooves adapted to the connecting steel bars.

[0008] As a preferred scheme of the utility model, an arc-shaped guiding surface is arranged at the bottom edge of the guiding groove, and the arc-shaped guiding surface abuts against the connecting steel bars.

[0009] As a preferred scheme of the utility model, reinforcing ribs arranged in a cross shape are arranged on the bottom surface of the spreading plate.

[0010] As a preferred embodiment of the present utility model, the spreading plate is provided with through grooves, which are arranged on both sides of the reinforcing ribs.

[0011] As a preferred embodiment of the present utility model, the connecting seat includes a pre-embedded plate, an adjusting column and an adjusting nut. The pre-embedded plate is fixed in the pile head, the adjusting column is connected to the pre-embedded plate, and the spreading plate is installed on the adjusting column through the adjusting nut.

[0012] As a preferred embodiment of the present utility model, positioning ribs are fixed in the pile head, the pre-embedded plate is fixed below the positioning ribs, and the pre-embedded plate is positioned and fixed in the pile head through the positioning ribs.

[0013] As a preferred embodiment of the present utility model, a connecting column is connected to the pre-embedded plate, and the pre-embedded plate is fixed on the positioning ribs through the connecting column.

[0014] As a preferred embodiment of the present utility model, a gap is provided in the middle of the steel reinforcement cage, the connecting rib is inserted into the gap, and the spreading plate is arranged in the gap.

[0015] The beneficial effects of the present utility model are as follows: (1) By bending the connecting rib extending into the steel reinforcement cage with the spreading plate, it can ensure that the bottom plate abuts against the top of the pile head, and ensure that there is enough length of the connecting rib extending into the steel reinforcement cage, thereby ensuring the connection strength between the bottom plate and the steel reinforcement cage.

[0016] (2) By spreading the connecting rib with the spreading plate arranged in the steel reinforcement cage, the bending convenience of the connecting rib is effectively improved, and the construction efficiency of the bottom plate and the pile head is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a cross-sectional view of the connection between the bottom plate and the pile head.

[0018] Figure 2 is a schematic connection diagram of the present connection structure with the connecting rib and the steel reinforcement cage.

[0019] Figure 3 is Figure 2 a schematic diagram after hiding the steel reinforcement cage.

[0020] Figure 4 is a schematic structural diagram of the spreading plate.

[0021] Reference numerals: pile head 1, connecting rib 1-1, bottom plate 2, steel reinforcement cage 2-1, gap 2-2, connecting seat 3, pre-embedded plate 3-1, adjusting column 3-2, adjusting nut 3-3, connecting column 3-4, spreading plate 4, guiding groove 4-1, arc guiding surface 4-2, reinforcing rib 4-3, through groove 4-4, positioning rib 5, connecting frame 5-1. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The present utility model will be further described below in conjunction with the accompanying drawings.

[0023] A connecting structure for a bottom plate and a pile head. A plurality of connecting bars 1-1 are evenly distributed in a circumferential manner at the top of the pile head 1. A steel reinforcement cage 2-1 is arranged inside the bottom plate 2. The connecting bars 1-1 are inserted into the steel reinforcement cage 2-1. A gap 2-2 is provided in the middle of the steel reinforcement cage 2-1. The connecting bars 1-1 are inserted into the gap 2-2. To facilitate the bending of the connecting bars 1-1 inserted into the steel reinforcement cage 2-1, a connecting structure is provided at the connection of the bottom plate and the pile head. The connecting structure includes a connecting seat 3 and a spreading plate 4. The bottom of the connecting seat 3 is embedded in the pile head 1. The spreading plate 4 is arranged in the gap 2-2 of the steel reinforcement cage 2-1 and is adjustably connected to the connecting seat 3. The outer edge of the spreading plate 4 abuts against a plurality of connecting bars 1-1 to spread the connecting bars 1-1 arranged in the steel reinforcement cage 2-1 by adjusting the spreading plate 4.

[0024] In this embodiment, the spreading plate 4 can be used to bend a plurality of connecting bars 1-1, improving the bending efficiency of the connecting bars 1-1. At the same time, the spreading plate 4 is located inside the steel reinforcement cage 2-1. The operator only needs to insert a wrench or other components for driving the lifting of the spreading plate 4 into the steel reinforcement cage 2-1. There is enough gap 2-2 inside the steel reinforcement cage 2-1 to adjust the spreading plate, ensuring the convenience of use of this connecting structure.

[0025] To facilitate the spreading of a plurality of connecting bars 1-1 by the spreading plate 4, the diameter of the spreading plate 4 is larger than the diameter of the circle where the plurality of connecting bars 1-1 are located. During the process of adjusting the spreading plate 4 downward, the spreading plate 4 spreads the plurality of connecting bars 1-1.

[0026] To prevent the spreading plate 4 from rotating with the adjusting nut 3-3 during the spreading process of the spreading plate 4, a guiding groove 4-1 adapted to the connecting bars 1-1 is provided on the spreading plate 4. That is, during the installation of the spreading plate 4, the connecting bars 1-1 are aligned with the guiding groove 4-1 so that the connecting bars 1-1 are installed into the guiding groove 4-1. It should be noted that the distance between the guiding grooves 4-1 on the same diameter line should be larger than the diameter of the circle where the plurality of connecting bars 1-1 are located.

[0027] An arc-shaped guiding surface 4-2 is provided at the bottom edge of the guiding groove 4-1. By abutting the arc-shaped guiding surface 4-2 against the connecting bars 1-1, the bottom edge of the guiding groove 4-1 is prevented from scratching the connecting bars 1-1.

[0028] Reinforcing ribs 4-3 arranged in a cross shape are provided on the bottom surface of the spreading plate 4 to ensure that the spreading plate 4 has sufficient strength and prevent the spreading plate 4 from deforming during the adjustment process.

[0029] A through groove 4-4 is provided on the spreading plate 4, and concrete can be poured through the through groove 4-4 into the gap between the spreading plate 4 and the pile head 1. To reduce the influence of the through groove 4-4 on the strength of the spreading plate 4, the through groove 4-4 is arranged on both sides of the reinforcing rib 4-3.

[0030] The connecting seat 3 includes an embedded plate 3-1, an adjusting column 3-2 and an adjusting nut 3-3. The embedded plate 3-1 is fixed in the pile head 1, the adjusting column 3-2 is connected to the embedded plate 3-1, and the spreading plate 4 is installed on the adjusting column 3-2 through the adjusting nut 3-3. By rotating the adjusting nut 3-3, the spreading plate 4 is moved towards the side of the pile head 1, thereby spreading the connecting rib 1-1.

[0031] A positioning rib 5 is fixed in the pile head 1, and the embedded plate 3-1 is fixed below the positioning rib 5. The embedded plate 3-1 is positioned and fixed in the pile head 1 through the positioning rib 5. Preferably, a connecting frame 5-1 is provided in the middle of the positioning rib 5, and a connecting column 3-4 is connected to the embedded plate 3-1. The connecting column 3-4 is welded or tied to the connecting frame 5-1, thereby fixing the embedded plate 3-1 on the positioning rib 5.

[0032] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention; therefore, the present invention will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

[0033] Although terms corresponding to the reference numerals in the drawings are used more in this text, the possibility of using other terms is not excluded; these terms are used only to more conveniently describe and explain the essence of the present invention; interpreting them as any additional limitation is contrary to the spirit of the present invention.

Claims

1. A connecting structure for a bottom plate and a pile head. A plurality of connecting bars (1-1) are evenly distributed in a circumferential manner at the top of the pile head (1). A steel reinforcement cage (2-1) is arranged inside the bottom plate (2). The connecting bars (1-1) are inserted into the steel reinforcement cage (2-1). It is characterized in that, The connecting structure includes a connecting seat (3) and a spreading plate (4). The connecting seat (3) is fixed inside the pile head (1), and the spreading plate (4) is adjustably installed on the connecting seat (3). The spreading plate (4) abuts against the connecting bars (1-1) to spread the connecting bars (1-1) through the spreading plate (4).

2. The connecting structure of a bottom plate and a pile head according to claim 1, characterized in that, The diameter of the spreading plate (4) is larger than the diameter of the circle where multiple connecting bars (1-1) are located, so as to spread the connecting bars (1-1) through the spreading plate (4).

3. The connecting structure of a bottom plate and a pile head according to claim 1, characterized in that The spreading plate (4) is provided with a guiding groove (4-1) adapted to the connecting bars (1-1).

4. The connecting structure of a bottom plate and a pile head according to claim 3, characterized in that, An arc-shaped guiding surface (4-2) is provided at the bottom edge of the guiding groove (4-1), and the arc-shaped guiding surface (4-2) abuts against the connecting bars (1-1).

5. The connecting structure of a bottom plate and a pile head according to claim 1, wherein, Reinforcing ribs (4-3) arranged in a cross shape are provided on the bottom surface of the spreading plate (4).

6. The connecting structure of a bottom plate and a pile head according to claim 5, characterized in that, A through groove (4-4) is provided on the spreading plate (4), and the through groove (4-4) is arranged on both sides of the reinforcing ribs (4-3).

7. The connecting structure of a bottom plate and a pile head according to claim 1, characterized in that The connecting seat (3) includes a pre-buried plate (3-1), an adjusting column (3-2) and an adjusting nut (3-3). The pre-buried plate (3-1) is fixed inside the pile head (1), the adjusting column (3-2) is connected to the pre-buried plate (3-1), and the spreading plate (4) is installed on the adjusting column (3-2) through the adjusting nut (3-3).

8. A connecting structure for a bottom plate and a pile head according to claim 7, characterized in that, Positioning bars (5) are fixed inside the pile head (1), the pre-buried plate (3-1) is fixed below the positioning bars (5), and the pre-buried plate (3-1) is positioned and fixed inside the pile head (1) through the positioning bars (5).

9. The connecting structure of a bottom plate and a pile head according to claim 8, characterized in that A connecting column (3-4) is connected to the pre-buried plate (3-1), and the pre-buried plate (3-1) is fixed on the positioning bars (5) through the connecting column (3-4).

10. The connecting structure of a bottom plate and a pile head according to claim 1, characterized in that, A gap (2-2) is provided in the middle of the steel reinforcement cage (2-1). The connecting bars (1-1) are inserted into the gap (2-2), and the spreading plate (4) is arranged in the gap (2-2).

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