Foundation pit pile foundation latticed column fixing device

Abstract

The utility model provides a foundation pit pile foundation latticed column fixing device which solves the problems that labor is wasted and the construction safety risk is large due to the fact that the perpendicularity of a latticed column is corrected in a manual auxiliary mode. The lattice column structure comprises a pile hole and a lattice column which is vertically arranged, wherein the lower end of the lattice column is inserted into the pile hole; corner clamping plates are clamped at the four corners of the latticed column, the adjacent corner clamping plates are connected into a whole through first bolts, the first bolts are sleeved with rotatable sleeves, the bottoms of the sleeves are fixedly connected with the top of a lifting mechanism, the bottom of the lifting mechanism is arranged on the ground, and the lifting mechanism can push the sleeves to move up and down. The device is used in the process after the latticed column is hoisted into a pile hole and before the latticed column is welded to a reinforcement cage, and the perpendicularity of the latticed column can be corrected. Meanwhile, the lifting mechanism and the clamping corner plate are detachably connected with the latticed column and the ground, punching and anchoring do not need to be conducted on the latticed column and the ground, construction is more convenient, turnover and cyclic utilization can be conducted, and cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of foundation pit construction, in particular to a foundation pit pile foundation lattice column fixing device. Background Art

[0002] In the construction of support in the foundation pit, the vertical support mostly adopts the lattice column construction technology. Lattice columns have the characteristics of high strength and good rigidity, good force transmission, earthquake resistance, fire resistance and corrosion resistance, and play a key role in the stability of the horizontal support of the foundation pit.

[0003] The construction process of the lattice column includes layout, material numbering, assembly, welding, hoisting, transportation, stacking, and installation and positioning. Among them, during the installation and positioning construction process, the lattice column can only be firmly welded to the steel cage after it is hoisted into the pile hole to form a fixed state. However, in the process after the lattice column is hoisted into the pile hole and before it is welded to the steel cage, due to the lack of auxiliary fixing devices for the lattice column, the lattice column is prone to deflection, and the verticality of the deflected lattice column needs to be re-corrected. The commonly used correction method is: after the lattice column is hoisted into the pile hole, the verticality of the lattice column is corrected manually around the lattice column. This manual assisted correction method is not only laborious, but also has a greater construction safety risk. Utility Model Content

[0004] In order to solve the problem that the method of manually assisting in correcting the verticality of lattice columns in the background art is not only laborious but also has a high construction safety risk, the utility model proposes a lattice column fixing device for foundation pit pile foundation.

[0005] The technical solution of the utility model is: a foundation pit pile foundation lattice column fixing device, comprising a pile hole and a vertically arranged lattice column, wherein the lower end of the lattice column is inserted into the pile hole;

[0006] The four corners of the lattice column are all provided with corner plates, and adjacent corner plates are connected as a whole by a first bolt. A rotatable sleeve is sleeved on the first bolt, and the bottom of the sleeve is fixedly connected to the top of the lifting mechanism. The bottom of the lifting mechanism is set on the ground, and the lifting mechanism can push the sleeve to move up and down.

[0007] Preferably, the lifting device comprises a base plate and a telescopic lifting device, the top of the base plate is hingedly connected to the bottom of the telescopic lifting device, and the sleeve is fixedly arranged on the top of the telescopic lifting device.

[0008] Preferably, the top of the base plate is connected to the bottom of the telescopic lifting device by a ball hinge.

[0009] Preferably, a pair of vertically arranged connecting plates are fixed to opposite ends of adjacent base plates, a transparent second screw hole is opened on the connecting plate, and two adjacent connecting plates are fixedly connected by second bolts passing through the two second screw holes.

[0010] Preferably, the corner plate comprises an arc-shaped plate, the center of which faces one side of the lattice column, wing plates are fixedly provided at both ends of the arc-shaped plate, the other end of the wing plate extends toward a side away from the lattice column, and a first screw hole is provided on the wing plate;

[0011] A corner plate is fixedly provided on one side of the arc plate facing the lattice column. The corner plate is an L-shaped plate structure and is clamped at the corner of the lattice column.

[0012] The first bolt is inserted into two first screw holes corresponding to two adjacent corner plate members.

[0013] Preferably, a reinforcement plate is fixedly connected between the corner plate and the wing plate.

[0014] Advantages of the utility model: The device is used in the process after the lattice column is hoisted into the pile hole and before it is welded to the steel cage. The verticality of the lattice column can be corrected through the cooperation of the lifting mechanism and the angle plate, avoiding the problem of laboriousness and high construction safety risks when using manual assistance to correct the lattice column.

[0015] At the same time, the lifting mechanism, corner plates, lattice columns and the ground are all detachably connected, and there is no need to drill holes and anchor the lattice columns and the ground. This not only makes construction more convenient, but the lifting mechanism and corner plates can also be recycled, saving costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 This is a schematic diagram of the planar structure of Example 1 from a top view angle;

[0018] Figure 2 for Figure 1 A schematic diagram of the structure of the corner plate in FIG.

[0019] Figure 3 for Figure 1 Structural diagram of the lifting mechanism from the main view angle (the connecting plate on the bottom plate is removed)

[0020] In the figure, 1, pile hole, 2, lattice column, 3, angle plate, 301, arc plate, 302, wing plate, 4, angle plate, 5, reinforcement plate, 6, first bolt, 7, sleeve, 8, telescopic lifting device, 9, articulated ball, 10, ball joint seat, 11, bottom plate, 12, connecting plate, 13, second bolt. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Embodiment 1: A lattice column fixing device for a foundation pit pile foundation, such as Figure 1 As shown, it comprises a pile hole 1 and a vertically arranged lattice column 2, wherein the lower end of the lattice column 2 is inserted into the pile hole 1.

[0023] The four corners of the lattice column 2 are all provided with corner plates 3, such as Figure 1 and Figure 2 As shown, the corner plate 3 includes an arc plate 301, the center of which faces one side of the lattice column 2, and wing plates 302 are fixedly provided at both ends of the arc plate 301, the other end of the wing plate 302 extends toward the side away from the lattice column 2, and a first screw hole is provided on the wing plate 302. First bolts 6 are inserted into the two first screw holes corresponding to two adjacent corner plate members 3. Adjacent corner plate members 3 are connected as a whole by the first bolts 6.

[0024] A corner plate 4 is fixedly provided on one side of the arc plate 301 facing the lattice column 2. The corner plate 4 is an L-shaped plate structure and is clamped at the corner of the lattice column 2. In order to enhance the structural strength of the corner plate 4, a reinforcing plate 5 is fixedly connected between the corner plate 4 and the wing plate 302.

[0025] The first bolt 6 is sleeved with a rotatable sleeve 7, the bottom of the sleeve 7 is fixedly connected to the top of the lifting mechanism, the bottom of the lifting mechanism is set on the ground, and the lifting mechanism can push the sleeve 7 to move up and down. Figure 3 As shown, the lifting device includes a bottom plate 11 and a telescopic lifting device 8, and a sleeve 7 is fixedly arranged on the top of the telescopic lifting device 8. A ball joint seat 10 is fixedly arranged on the top of the bottom plate 11, and a hinge ball 9 is fixedly arranged on the bottom of the telescopic lifting device 8. The hinge ball 9 is spherically hinged in the ball joint seat 10, so that the top of the bottom plate 11 and the bottom of the telescopic lifting device 8 form a ball hinge connection, so that the telescopic lifting device 8 can swing in multiple directions.

[0026] The telescopic lifting device 8 in this embodiment adopts a hydraulic cylinder. In other embodiments, the telescopic lifting device 8 can also be replaced by a pneumatic cylinder.

[0027] In order to further enhance the stability of the lifting mechanism when performing lifting and correcting the verticality of the lattice column 2, as Figure 1 As shown, a pair of vertically arranged connecting plates 12 are fixed to opposite ends of adjacent bottom plates 11, and a transparent second screw hole is opened on the connecting plate 12. Two adjacent connecting plates 12 are fixedly connected by second bolts 13 passing through the two second screw holes.

[0028] Working principle: In the process after the lattice column 2 is hoisted into the pile hole 1 and before it is welded to the steel cage, the corner plates 4 of the four corner plates 3 are clamped at the four corners of the lattice column 2, and the four corner plates 3 are connected as a whole by the first bolts 6.

[0029] When installing the first bolt 6, the sleeve 7 is simultaneously sleeved on the first bolt 6. The upper and lower heights of the angle plate 3 are adjusted so that the bottom plate 11 is against the ground and the telescopic lifting device 8 is kept in a vertical state.

[0030] Tighten the first bolt 6 to fasten the four corner plates 3 to the lattice column 2, connect the telescopic lifting device 8 to the hydraulic control system, and control the telescopic length of the telescopic lifting device 8 at a distance from the lattice column 2 through the hydraulic control system to push the lattice column 2 to adjust the inclination in four directions, cooperate with the verticality observation device (the verticality observation device is an existing technology, such as a total station, a laser calibrator or a plumb bob method, etc.), complete the verticality adjustment of the lattice column 2, and then pour the concrete of the lattice column. After the concrete solidifies, remove the corner plate 3, the first bolt 6, the lifting mechanism, and the second bolt 13, and they can be reused.

[0031] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is limited by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A lattice column fixing device for a foundation pit pile foundation, characterized in that: It comprises a pile hole (1) and a lattice column (2) arranged vertically, wherein the lower end of the lattice column (2) is inserted into the pile hole (1); Angle plates (3) are clamped at the four corners of the lattice column (2); adjacent angle plates (3) are connected as a whole by first bolts (6); a rotatable sleeve (7) is sleeved on the first bolt (6); the bottom of the sleeve (7) is fixedly connected to the top of a lifting mechanism; the bottom of the lifting mechanism is arranged on the ground; and the lifting mechanism can push the sleeve (7) to move up and down.

2. A lattice column fixing device for a foundation pit pile foundation as claimed in claim 1, characterized in that: The lifting mechanism comprises a bottom plate (11) and a telescopic lifting device (8), the top of the bottom plate (11) is hingedly connected to the bottom of the telescopic lifting device (8), and the sleeve (7) is fixedly arranged on the top of the telescopic lifting device (8).

3. A lattice column fixing device for a foundation pit pile foundation as claimed in claim 2, characterized in that: The top of the bottom plate (11) is connected to the bottom of the telescopic lifting device (8) by a ball hinge.

4. A foundation pit pile foundation lattice column fixing device as claimed in claim 2 or 3, characterized in that: A vertically arranged connecting plate (12) is fixedly provided at opposite ends of adjacent bottom plates (11), a transparent second screw hole is provided on the connecting plate (12), and two adjacent connecting plates (12) are fixedly connected by second bolts (13) passing through the two second screw holes.

5. A lattice column fixing device for a foundation pit pile foundation as claimed in claim 1, characterized in that: The corner plate (3) comprises an arc-shaped plate (301), the center of the arc-shaped plate (301) faces one side of the lattice column (2), wing plates (302) are fixedly provided at both ends of the arc-shaped plate (301), the other end of the wing plate (302) extends toward a side away from the lattice column (2), and a first screw hole is provided on the wing plate (302); A corner plate (4) is fixedly provided on one side of the arc-shaped plate (301) facing the lattice column (2); the corner plate (4) is an L-shaped plate structure, and the corner plate (4) is clamped at the corner of the lattice column (2); The first bolt (6) is inserted into two first screw holes corresponding to two adjacent corner plate members (3).

6. A lattice column fixing device for a foundation pit pile foundation as claimed in claim 5, characterized in that: A reinforcing plate (5) is fixedly connected between the corner plate (4) and the wing plate (302).

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