Telescopic variable diameter reinforcement cage

Abstract

The utility model discloses telescopic variable diameter reinforcement cage, including longitudinal reinforcement and transverse reinforcement, longitudinal reinforcement is provided with multiple groups in the state of annular array, the transverse reinforcement is helical and sets up with the outside of each group longitudinal reinforcement, still include the installation cylinder of being centrally arranged between each group longitudinal reinforcement. The utility model discloses telescopic variable diameter reinforcement cage, the reinforcement cage is in use, through the mutual cooperation of locking assembly and extruding assembly, can flexibly adjust the use diameter of reinforcement cage, can make the actual diameter of whole reinforcement cage smaller, through the setting of smaller diameter of reinforcement cage, the transportation of self -loading reinforcement cage and the quick feeding of reinforcement cage in the inside of hole formation after transportation are convenient, also can increase the diameter of whole reinforcement cage, the inner wall of hole formation is fully abutted with reinforcement cage, increases the contact area of steel and concrete, makes steel better work with concrete, and bears external force together.

Description

Technical Field

[0001] This utility model relates to the field of steel cage technology, specifically to a telescopic variable diameter steel cage. Background Technology

[0002] A steel cage is a prefabricated steel structure used in the construction of bridges, culverts, or high-rise buildings to piling the foundation. In some construction processes, such as drilling holes first and then placing the steel cage, the small gap between the steel cage and the drilled hole can cause obstruction when placing the steel cage into the hole, affecting the efficient use of the steel cage.

[0003] Therefore, there is an urgent need for telescopic variable diameter steel cages to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to provide a telescopic variable diameter steel cage to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a telescopic variable diameter steel cage, comprising longitudinal steel bars and transverse steel bars, wherein the longitudinal steel bars are arranged in a circular array in multiple groups, and the transverse steel bars are spirally arranged and sleeved on the outside of each group of longitudinal steel bars, and further comprising:

[0006] An installation cylinder is centrally positioned between each group of longitudinal reinforcing bars. Multiple installation discs are fixed on the installation cylinder. Each installation disc is equipped with a locking component for locking and fixing each group of longitudinal reinforcing bars. An extrusion component is provided on the installation cylinder for extruding and pushing each group of longitudinal reinforcing bars. After the locking component is unlocked, the diameter of each group of longitudinal reinforcing bars expands through the extrusion component.

[0007] The locking assembly includes a locking rope sleeved on the outside of each group of longitudinal reinforcing bars, with connecting sleeves fixed at both ends of the locking rope, and a limiting assembly for limiting the two groups of connecting sleeves on the mounting plate.

[0008] The limiting component includes a sliding hole on the mounting plate, a limiting rod slidably connected to the sliding hole, a connecting sleeve fixed to the outside of the limiting rod, and a pull ring fixed to one end of the limiting rod for pulling the limiting rod.

[0009] The outer side of the mounting plate is provided with a positioning groove for positioning the longitudinal reinforcing bars during the locking process.

[0010] The extrusion assembly has multiple sets disposed between the mounting cylinder and the longitudinal reinforcing bars.

[0011] The extrusion assembly includes two sets of U-shaped seats disposed between the mounting cylinder and the longitudinal reinforcing bar. The two sets of U-shaped seats are respectively fixed to the outer side of the mounting cylinder and the inner side of the longitudinal reinforcing bar. The U-shaped seats are fixed with a mounting shaft. A first connecting rod and a second connecting rod are rotatably connected on the mounting shaft. The opposite ends of the two sets of first connecting rods and the two sets of second connecting rods are rotatably connected by a pin. The two sets of first connecting rods and the two sets of second connecting rods are arranged in a rhomboid shape. A torsion spring is sleeved on the outer side of the mounting shaft. A baffle is fixed on the outer side of the first connecting rod and the second connecting rod. The ends of the two sets of torsion springs are respectively abutted against the two sets of baffles.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This utility model discloses a telescopic variable diameter rebar cage. During use, the diameter of the rebar cage can be flexibly adjusted through the cooperation of the locking and pressing components. This allows for both a smaller actual diameter of the rebar cage, facilitating its transportation after self-assembly and its rapid placement into the borehole, and a larger diameter, ensuring better contact between the rebar cage and the inner wall of the borehole, increasing the contact area between the rebar and the concrete, and enabling the rebar to work better with the concrete to withstand external forces. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall external structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the locking and limiting components of this utility model;

[0016] Figure 3 This is a schematic diagram of the sliding hole structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the expanded diameter of the reinforcing cage according to this utility model;

[0018] Figure 5 This is a schematic diagram showing the positional relationship of each set of limiting components in this utility model;

[0019] Figure 6 This is a schematic diagram of the limiting component structure of this utility model.

[0020] In the diagram: 101, longitudinal reinforcing bar; 102, transverse reinforcing bar; 2, mounting cylinder; 3, mounting plate; 401, locking rope; 402, connecting sleeve; 501, sliding hole; 502, limiting rod; 503, pull ring; 601, U-shaped seat; 602, mounting shaft; 603, first connecting rod; 604, second connecting rod; 605, torsion spring; 606, baffle; 7, positioning groove. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-6 The telescopic variable diameter steel cage provided by this utility model includes longitudinal steel bars 101 and transverse steel bars 102. The longitudinal steel bars 101 are arranged in a ring array in multiple groups, and the transverse steel bars 102 are spiral and sleeved on the outside of each group of longitudinal steel bars 101.

[0023] It is worth noting here that during the process of the spiral transverse steel bar 102 being pressed against each other on the inside, the transverse steel bar 102 can expand and adjust its inner diameter due to its own shape and material properties.

[0024] Also includes:

[0025] An installation cylinder 2 is centrally located between each group of longitudinal reinforcing bars 101. Multiple installation discs 3 are fixed on the installation cylinder 2. The installation discs 3 are equipped with locking components for locking and fixing each group of longitudinal reinforcing bars 101. The installation cylinder 2 is equipped with extrusion components for extruding and pushing each group of longitudinal reinforcing bars 101. After the locking components are unlocked, the diameter of each group of longitudinal reinforcing bars 101 is expanded by the extrusion components.

[0026] It should be noted that during use, the diameter of the reinforcing cage can be flexibly adjusted through the cooperation of the locking and pressing components. This can result in a smaller actual diameter, which facilitates the transportation of the cage after self-assembly and its rapid placement inside the borehole. Alternatively, an increased diameter can ensure better contact between the cage and the inner wall of the borehole, increasing the contact area between the reinforcing steel and the concrete. This allows the reinforcing steel and concrete to work together more effectively to withstand external forces.

[0027] The locking assembly includes a locking rope 401 sleeved on the outside of each set of longitudinal reinforcing bars 101, with connecting sleeves 402 fixed at both ends of the locking rope 401. The mounting plate 3 is provided with a limiting assembly for limiting the two sets of connecting sleeves 402. The limiting assembly includes a sliding hole 501 opened on the mounting plate 3, with a limiting rod 502 slidably connected to the sliding hole 501. The connecting sleeve 402 is sleeved and fixed on the outside of the limiting rod 502, and a pull ring 503 for pulling the limiting rod 502 is fixed at one end of the limiting rod 502.

[0028] It should be noted here that after the longitudinal reinforcing bars 101 are pushed against each other, the locking rope 401 is sleeved on the outside of the longitudinal reinforcing bars 101. After sleeved, the limiting rod 502 is passed through the sliding hole 501 of the mounting plate 3. During the passing process, the limiting rod 502 is inserted into the connecting sleeve 402 at both ends of the locking rope 401. Through the limiting action of the limiting rod 502 on the insertion of the connecting sleeve 402 and the sleeve action of the locking rope 401, the longitudinal reinforcing bars 101 after being pushed are locked. After locking, the transverse reinforcing bar 102 is sleeved on the outside of the longitudinal reinforcing bars 101.

[0029] The outer side of the mounting plate 3 is provided with a positioning groove 7 for positioning the longitudinal steel bar 101 during the locking process;

[0030] It should be noted here that the longitudinal steel bar 101 of the converging movement is positioned by the positioning groove 7.

[0031] Multiple sets of extrusion assemblies are provided between the mounting cylinder 2 and the longitudinal reinforcing bar 101;

[0032] It should be noted here that the effect of extrusion and pushing is improved by using multiple sets of extrusion components.

[0033] The extrusion assembly includes two sets of U-shaped seats 601 disposed between the mounting cylinder 2 and the longitudinal reinforcing bar 101. The two sets of U-shaped seats 601 are fixed to the outer side of the mounting cylinder 2 and the inner side of the longitudinal reinforcing bar 101, respectively. The U-shaped seats 601 are fixed with mounting shafts 602. A first connecting rod 603 and a second connecting rod 604 are rotatably connected at opposite ends of the two sets of first connecting rods 603 and the two sets of second connecting rods 604 through pins. The two sets of first connecting rods 603 and the two sets of second connecting rods 604 are arranged in a rhomboid shape. A torsion spring 605 is sleeved on the outer side of the mounting shaft 602. A baffle 606 is fixed on the outer side of the first connecting rods 603 and the second connecting rods 604. The ends of the two sets of torsion springs 605 are respectively abutted against the two sets of baffles 606.

[0034] It should be noted that during the process of pushing the longitudinal steel bars 101 toward the mounting cylinder 2, the connection between the two sets of U-shaped seats 601 causes the two sets of first connecting rods 603 and two sets of second connecting rods 604 between the two sets of U-shaped seats 601 to contract and rotate. During the rotation, the compression action of the baffles 606 on the first connecting rods 603 and second connecting rods 604 on the torsion springs 605 causes the torsion springs 605 to deform and generate elastic force. When the locking rope 401 is no longer locking the longitudinal steel bars 101, the torque of the torsion springs 605 on the compression assembly and the connection between the first connecting rods 603 and second connecting rods 604 push the two sets of U-shaped seats 601 to move away from each other.

[0035] Working principle: Before use, the steel cage is assembled and installed. During the installation process, each set of longitudinal steel bars 101 is pushed toward the installation cylinder 2. During the pushing process, each set of longitudinal steel bars 101 abuts against each set of positioning grooves 7 on the outer side of the installation plate 3 of the installation cylinder 2. During the pushing process of the longitudinal steel bars 101 toward the installation cylinder 2, through the connection of the two sets of U-shaped seats 601, the two sets of first connecting rods 603 and the two sets of second connecting rods 604 between the two sets of U-shaped seats 601 are contracted and rotated. During the rotation process, through the squeezing action of the baffle 606 on the first connecting rod 603 and the second connecting rod 604, the torsion spring 605 is deformed by force and generates elastic force.

[0036] After the longitudinal reinforcing bars 101 are pushed against each other, the locking rope 401 is fitted onto the outside of each group of longitudinal reinforcing bars 101. After fitting, the limiting rod 502 is passed through the sliding hole 501 of the mounting plate 3. During the passing process, the limiting rod 502 is inserted into the connecting sleeves 402 at both ends of the locking rope 401. Through the limiting action of the limiting rod 502 on the insertion of the connecting sleeves 402 and the fitting action of the locking rope 401, the pushed longitudinal reinforcing bars 101 are locked. After locking, the transverse reinforcing bar 102 is fitted onto the outside of each group of longitudinal reinforcing bars 101 (see...). Figure 1 (in the state of the longitudinal reinforcement 101 and transverse reinforcement 102), at this time, each group of longitudinal reinforcement 101 and transverse reinforcement 102 is in a contracted state, which makes the actual diameter of the entire reinforcement cage smaller. By setting the diameter of the reinforcement cage smaller, it is convenient to transport the self-assembled reinforcement cage and to quickly place the reinforcement cage into the hole after transportation.

[0037] After the reinforcing cage is placed into the hole, the limiting rod 502 is pulled out from the sliding holes 501 and connecting sleeve 402 by the pull ring 503. The locking rope 401 is no longer locked to the longitudinal reinforcing bars 101. At this time, the torsion of the torsion spring 605 on the compression assembly and the connection between the first connecting rod 603 and the second connecting rod 604 push the two sets of U-shaped seats 601 to move away from each other, so that the longitudinal reinforcing bars 101 move away from the installation cylinder 2, increasing the diameter of the entire reinforcing cage (see...). Figure 4 This design facilitates full contact between the reinforcing cage and the inner wall of the hole, increasing the contact area between the reinforcing bars and the concrete, allowing the reinforcing bars to work better with the concrete and jointly withstand external forces.

[0038] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. Expansion-type variable diameter steel cage, including: The longitudinal reinforcing bars (101) and transverse reinforcing bars (102) are arranged in a ring array in multiple groups, and the transverse reinforcing bars (102) are spirally arranged and sleeved on the outside of each group of longitudinal reinforcing bars (101). Its characteristic is that it further includes: An installation cylinder (2) is centrally located between each group of longitudinal reinforcing bars (101). Multiple installation discs (3) are fixed on the installation cylinder (2). The installation discs (3) are provided with locking components for locking and fixing each group of longitudinal reinforcing bars (101). The installation cylinder (2) is provided with extrusion components for extruding and pushing each group of longitudinal reinforcing bars (101). After the locking components are unlocked, the diameter of each group of longitudinal reinforcing bars (101) is expanded by the extrusion components.

2. The telescopic variable diameter steel cage according to claim 1, characterized in that: The locking assembly includes a locking rope (401) sleeved on the outside of each set of longitudinal reinforcing bars (101), with connecting sleeves (402) fixed at both ends of the locking rope (401), and a limiting assembly for limiting the two sets of connecting sleeves (402) is provided on the mounting plate (3).

3. The telescopic variable diameter steel cage according to claim 2, characterized in that: The limiting component includes a sliding hole (501) on the mounting plate (3), a limiting rod (502) is slidably connected to the sliding hole (501), a connecting sleeve (402) is sleeved and fixed to the outside of the limiting rod (502), and a pull ring (503) for pulling the limiting rod (502) is fixed to one end of the limiting rod (502).

4. The telescopic variable diameter steel cage according to claim 1, characterized in that: The outer side of the mounting plate (3) is provided with a positioning groove (7) for positioning the longitudinal steel bar (101) during the locking process.

5. The telescopic variable diameter steel cage according to claim 1, characterized in that: The extrusion assembly is provided in multiple sets between the mounting cylinder (2) and the longitudinal reinforcing bar (101).

6. The telescopic variable diameter steel cage according to claim 5, characterized in that: The extrusion assembly includes two sets of U-shaped seats (601) disposed between the mounting cylinder (2) and the longitudinal reinforcing bar (101). The two sets of U-shaped seats (601) are respectively fixed to the outer side of the mounting cylinder (2) and the inner side of the longitudinal reinforcing bar (101). The U-shaped seats (601) are fixed with mounting shafts (602). A first connecting rod (603) and a second connecting rod (604) are rotatably connected to the mounting shafts (602). The two sets of first connecting rods (603) and second connecting rods (604) are connected to each other. 3) The two sets of second connecting rods (604) are rotatably connected at opposite ends by a pin, and the two sets of first connecting rods (603) and the two sets of second connecting rods (604) are arranged in a rhomboid shape. A torsion spring (605) is sleeved on the outside of the mounting shaft (602), and a baffle (606) is fixed on the outside of the first connecting rod (603) and the second connecting rod (604). The ends of the two sets of torsion springs (605) are respectively abutted against the two sets of baffles (606).

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