Pile foundation reinforcement cage construction positioning device

Abstract

The utility model discloses a pile foundation reinforcement cage construction positioning device which comprises a plurality of positioning supports used for placing main reinforcements of a reinforcement cage, each positioning support comprises a base, and a semicircular bottom frame used for placing the main reinforcements of the lower half portion of the reinforcement cage is fixed to the upper portion of each base. The two sides of the semicircular bottom frame are provided with rotary supporting mechanisms capable of rotating and containing main steel bars of the lower half portion of the reinforcement cage, and the rotary supporting mechanisms are rotationally separated from the main steel bars of the upper half portion of the reinforcement cage through jacking devices on the lower portions of the rotary supporting mechanisms. The rotary supporting mechanism is rotationally separated from the upper half main reinforcement of the reinforcement cage through the jacking device on the lower portion, so that the upper half reinforcement of the reinforcement cage is supported and disassembled more conveniently and efficiently, bolts do not need to be screwed, the equipment disassembling and assembling time is greatly saved, and the reinforcement cage manufacturing efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of pile foundation steel cage construction, and specifically relates to a positioning device for pile foundation steel cage construction. Background Art

[0002] When constructing and manufacturing a pile foundation steel cage, it is necessary to evenly place multiple main steel bars in a ring shape, and weld a ring-shaped reinforcing rib inside the main steel bars arranged in a ring to form a steel cage for fixation.

[0003] Chinese Patent CN206220089U discloses a positioning device for manufacturing a bridge steel cage. When placing multiple main steel bars, the positioning jig body at its upper part is an integral detachable ring-shaped structure or circular body structure formed by connecting at least three arc-shaped steel plates through connectors and bolts. However, when assembling and disassembling it, a large number of bolts need to be screwed, and the operation is very troublesome, affecting the efficiency of manufacturing the steel cage. Utility Model Content

[0004] In order to solve the above existing problems, the utility model provides a positioning device for pile foundation steel cage construction.

[0005] The utility model is realized through the following technical solutions:

[0006] A positioning device for pile foundation steel cage construction includes multiple positioning brackets for placing the main steel bars of the steel cage. Each positioning bracket includes a base, and a semi-circular base frame for placing the lower half of the main steel bars of the steel cage is fixed on the upper part of the base. Rotating support mechanisms capable of rotating and placing the lower half of the main steel bars of the steel cage are arranged on both sides of the semi-circular base frame. The rotating support mechanisms are rotationally separated from the upper half of the main steel bars of the steel cage through a jacking device at the lower part.

[0007] Further optionally, a plurality of positioning grooves for placing the lower half of the main steel bars of the steel cage are evenly opened on the upper part of the semi-circular base frame.

[0008] Further optionally, the rotating support mechanism includes a support column fixed on the base. A rotating groove is arranged inside the support column, and a rotating shaft is rotationally connected to the rotating groove. Different-length lower support rods and upper support rods are fixed on the side part of the rotating shaft. Placing grooves are arranged on the upper parts of the lower support rods and the upper support rods.

[0009] Further optionally, an arc-shaped groove is opened at the end of the upper support rod, and the arc-shaped grooves of the two upper support rods are arranged in a fitting manner to form a semi-circular groove for placing the topmost main steel bar.

[0010] Further optionally, the jacking device includes a toggle rod hinged and fixed to the side part of the support column. One side of the toggle rod extends towards the rotating groove and contacts the bottom of the rotating shaft, and the other side of the toggle rod extends to the outside of the support column.

[0011] Further optionally, the support columns and the rotating shafts are provided with matching pin holes, and a pin shaft is inserted into the pin holes. After the pin shaft is inserted, the placement grooves of the lower support rod and the upper support rod and the position grooves of the semi-circular chassis are arranged uniformly in a ring shape.

[0012] Compared with the existing technology, the beneficial effects of the present utility model are as follows: By arranging a rotating support mechanism on the side of the semi-circular chassis, the rotating support mechanism is rotated and separated from the main steel bars in the upper half of the steel reinforcement cage through the jacking device at the lower part. In this way, it is more convenient and efficient to support and disassemble the steel bars in the upper half of the steel reinforcement cage, without the need to turn bolts, greatly saving the equipment disassembly and assembly time and improving the production efficiency of the steel reinforcement cage. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0014] Figure 2 is Figure 1 a partially enlarged structural schematic diagram in

[0015] Figure 3 is a side view of the present utility model;

[0016] Figure 4 is a schematic diagram of the present utility model when the rotating support mechanism is lowered;

[0017] Figure 5 is a schematic diagram of the present utility model when rotating and separating from the rotating support mechanism;

[0018] In the figure: positioning bracket 1, base 2, semi-circular chassis 3, positioning groove 4, support column 5, rotating shaft 6, lower support rod 7, upper support rod 8, placement groove 9, arc groove 10, pin shaft 11, toggle rod 12, main steel bar 13, reinforcing rib 14. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The present utility model will be further described in detail below in conjunction with the drawings and the specific embodiments:

[0020] As Figure 1 , 2 shown, a pile foundation steel reinforcement cage construction positioning device includes a plurality of positioning brackets 1 for placing the main steel bars 13 of the steel reinforcement cage. The positioning bracket 1 includes a base 2, and a semi-circular chassis 3 for placing the main steel bars 13 in the lower half of the steel reinforcement cage is fixed on the upper part of the base 2. Rotating support mechanisms capable of rotating and placing the main steel bars 13 in the lower half of the steel reinforcement cage are arranged on both sides of the semi-circular chassis 3. The rotating support mechanism is rotated and separated from the main steel bars 13 in the upper half of the steel reinforcement cage through the jacking device at the lower part.

[0021] As Figure 2As shown, a plurality of positioning grooves 4 for placing the lower half of the main reinforcement bars 13 of the steel reinforcement cage are evenly formed in the upper part of the semi-circular chassis 3, and the plurality of positioning grooves 4 are used for placing the lower half of the main reinforcement bars of the steel reinforcement cage.

[0022] As Figure 2 shown, the rotary support mechanism includes a support column 5 fixed on the base 2. A rotary groove is provided inside the support column 5, and a rotary shaft 6 is rotatably connected to the rotary groove. Lower support rods 7 and upper support rods 8 with different lengths are fixed to the side of the rotary shaft 6, and placing grooves 9 are provided in the upper parts of the lower support rods 7 and the upper support rods 8.

[0023] As Figure 2 、 3 shown, an arc-shaped groove 10 is formed at the end of the upper support rod 8, and the arc-shaped grooves 10 of the two side upper support rods 8 are arranged in a fitting manner to form a semi-circular groove for placing the topmost main reinforcement bar 13.

[0024] As Figure 2 shown, the jacking device includes a toggle rod 12 hinged and fixed to the side of the support column 5. One side of the toggle rod 12 extends towards the rotary groove and contacts the bottom of the rotary shaft 6, and the other side of the toggle rod 12 extends to the outside of the support column 5.

[0025] As Figure 2 shown, matching pin holes are formed in the support column 5 and the rotary shaft 6, and a pin shaft 11 is inserted into the pin holes. After the pin shaft 11 is inserted, the placing grooves 9 of the lower support rods 7 and the upper support rods 8 and the positioning grooves 4 of the semi-circular chassis 3 are arranged in a uniform ring shape.

[0026] The implementation principle of a pile foundation steel reinforcement cage construction positioning device in an embodiment of the present application is as follows:

[0027] During use, first pull out the pin shaft 11 of the rotary support mechanism, and rotate the rotary support mechanism outwards so that the lower support rods 7 and the upper support rods 8 do not block the semi-circular chassis 3. Then, place a plurality of main reinforcement bars 13 from the upper part of the semi-circular chassis 3 into the corresponding positioning grooves 4 for positioning. After the positioning grooves 4 of the semi-circular chassis 3 are filled, restore the rotation of the rotary support mechanism, and step on the toggle rod 12 to move the rotary shaft 6 upwards so that the pin holes of the support column 5 and the rotary shaft 6 are aligned. After alignment, insert the pin shaft 11 to fix the rotary shaft 6, the lower support rods 7, and the upper support rods 8 first (the ends of the upper support rods 8 of the two side rotary support mechanisms are in contact).

[0028] After fixing, place the remaining main reinforcement bars 13 into the placing grooves 9 on the lower support rods 7 and the upper support rods 8 and the semi-circular groove formed at the top, to realize the positioning and fixing of the entire main reinforcement bars 13 of the steel reinforcement cage. Then, place a plurality of stirrups 14 into the gaps between the main reinforcement bars 13 and weld them inside the main reinforcement bars 13 to form a steel reinforcement cage (as Figure 1As shown, after welding, step on the toggle lever 12 with your foot. The front end of the toggle lever 12 will lift the rotating shaft 6, so that the pin shaft 11 is not under pressure. Pull out the pin shaft 11, and then the rotating shaft 6 will drop. The lower support rod 7 and the upper support rod 8 on its side will move downward, causing the placement groove 9 to disengage from the main reinforcement bar 13 (as Figure 4 shown). Then, the rotating shaft 6 can be rotated outward so that the lower support rod 7 and the upper support rod 8 do not block the steel reinforcement cage (as Figure 5 shown). Then, rotate the rotating support mechanism on the other side. Then, use a crane to lift the steel reinforcement cage out of the semi-circular bottom frame 3 for the production of the next steel reinforcement cage;

[0029] In this way, the assembly and disassembly of the main reinforcement bar 13 on the upper half of the steel reinforcement cage are realized through the rotating support mechanism rotating on the side of the semi-circular bottom frame 3. The processing efficiency of the steel reinforcement cage is high. There is no need to turn bolts throughout the process, which greatly saves the equipment disassembly and assembly time and improves the production efficiency of the steel reinforcement cage.

[0030] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A construction positioning device for the steel cage of a pile foundation, characterized in that: It includes a plurality of positioning brackets (1) for placing the main reinforcement bars (13) of the steel reinforcement cage. The positioning bracket (1) includes a base (2). A semi-circular bottom frame (3) for placing the main reinforcement bars (13) of the lower half of the steel reinforcement cage is fixed on the upper part of the base (2). Rotating support mechanisms capable of rotating and placing the main reinforcement bars (13) of the lower half of the steel reinforcement cage are arranged on both sides of the semi-circular bottom frame (3). The rotating support mechanism is rotationally disengaged from the main reinforcement bars (13) of the upper half of the steel reinforcement cage through a jacking device at the lower part.

2. The construction positioning device for a pile foundation steel reinforcement cage according to claim 1, wherein: A plurality of positioning grooves (4) for placing the main reinforcement bars (13) of the lower half of the steel reinforcement cage are evenly formed in the upper part of the semi-circular bottom frame (3).

3. The construction positioning device for a pile foundation steel reinforcement cage according to claim 1, wherein: The rotating support mechanism includes a support column (5) fixed on the base (2). A rotating groove is arranged inside the support column (5), and a rotating shaft (6) is rotatably connected to the rotating groove. Different-length lower support rods (7) and upper support rods (8) are fixed on the side of the rotating shaft (6). Placing grooves (9) are arranged on the upper parts of the lower support rods (7) and the upper support rods (8).

4. The construction positioning device for the steel cage of a pile foundation according to claim 3, wherein: An arc-shaped groove (10) is formed at the end of the upper support rod (8). The arc-shaped grooves (10) of the upper support rods (8) on both sides are arranged in a fitting manner to form a semi-circular groove for placing the topmost main reinforcement bar (13).

5. The construction positioning device for the pile foundation steel reinforcement cage according to claim 1, wherein: The jacking device includes a toggle rod (12) hinged and fixed to the side of the support column (5). One side of the toggle rod (12) extends towards the rotating groove and contacts the bottom of the rotating shaft (6), and the other side of the toggle rod (12) extends to the outside of the support column (5).

6. The construction positioning device for the steel cage of a pile foundation according to claim 5, characterized in that: Matching pin holes are formed in the support column (5) and the rotating shaft (6). A pin shaft (11) is inserted into the pin holes. After the pin shaft (11) is inserted, the placing grooves (9) of the lower support rods (7) and the upper support rods (8) and the positioning grooves (4) of the semi-circular bottom frame (3) are arranged in a ring shape evenly.

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