Reinforcement cage positioning mechanism for viaduct pier column construction

Abstract

The utility model discloses a reinforcement cage positioning mechanism for viaduct pier column construction, which comprises a convex pipe barrel, supporting strips are inserted in the inner side surface of the convex pipe barrel in a sliding manner, the supporting strips are distributed on the inner side surface of the upper end of the convex pipe barrel, concave strips are fixed on the inner end surfaces of the supporting strips, and the concave strips are fixed on the inner side surface of the convex pipe barrel. A positioning wheel is arranged on the inner side surface of the concave strip, an extrusion wheel is arranged on the inner side surface of the supporting strip, the outer surface of the convex pipe barrel is slidably sleeved with a conical extrusion shell, and the inner side surface of the conical extrusion shell is slidably attached to the outer surface of the extrusion wheel; the lifting type conical extrusion shell structure is adopted, the extrusion wheels can be extruded to drive the concave strips and the positioning wheels to shrink and slide, shrinkage of the positioning wheels in a circle can be adjusted at the same time, synchronous equidistant adjustment can be achieved, when a reinforcement cage descends, attaching is stable, and center deviation cannot be caused; positioning is precise, synchronous adjustment is achieved during adjustment, operation is easy, and use is convenient.

Description

Technical Field

[0001] The utility model relates to the field of a steel cage positioning mechanism for the construction of an elevated bridge pier, and more specifically, to a steel cage positioning mechanism for the construction of an elevated bridge pier. Background Art

[0002] The pier column is a load-bearing structure used to support the upper structure in civil engineering. The cross section of the pier column is mostly circular, but there are also elliptical, square, curved, parabolic and other special pier columns. It is an important component in highway bridges, railway bridges, pedestrian bridges, overpasses, ramp bridges, flyovers and other projects. During the construction of its internal skeleton steel cage, it needs to be inserted into the foundation pile hole. During the construction operation, in order to ensure the construction quality, when the steel cage is lowered, its axial direction must coincide with the axis of the pile hole. However, in actual construction, when the steel cage is lowered, it is difficult to accurately adjust the steel cage to the center of the pile hole. In addition, due to the influence of construction facilities and the proficiency of operators, the steel cage is prone to deviation during the lowering process, and may even damage the retaining wall of the pile hole, which will lead to rework of the pile foundation, seriously affecting the construction efficiency and speed, and consuming a lot of manpower and material resources.

[0003] In the prior art, such as the authorization announcement number CN221663644U, the utility model discloses a steel cage positioning device, which relates to the field of steel cage construction technology, including a base surface, a bored pile foundation pit is provided on the base surface, a steel cage is arranged in the bored pile foundation pit, the top of the base surface is located on the outside of the bored pile foundation pit and a placement frame is fixedly provided, and a steel cage positioning mechanism is provided on the top of the placement frame; a connecting frame is fixedly installed on the top of the placement frame, a connecting rod is slidably installed in the connecting frame, a positioning rod is fixedly installed on the top of the connecting frame, a movable groove is provided in the positioning rod, a threaded screw is rotatably installed in the movable groove, a movable block is slidably installed in the movable groove, the movable block is sleeved on the threaded screw and threadedly connected to the threaded screw, a movable plate is fixedly installed on the outer wall of the movable block, an extrusion plate is installed on the movable plate, and the connecting rod and the extrusion plate are fixedly connected. The utility model can achieve the purpose of centering the offset steel cage;

[0004] The above-mentioned patent adopts a square plate structure, and an independently adjustable positioning component is set on the outside. However, due to the independent adjustable structure, the positioning components cannot be adjusted equidistantly during adjustment. The positioning components on the left, right, upper and lower sides are prone to deviation during adjustment, resulting in an offset of the positioning center and poor precision positioning. Moreover, the adjustments are made one by one, which makes the operation complicated and inconvenient to use. Utility Model Content

[0005] In response to the problems existing in the prior art, the purpose of the utility model is to provide a steel cage positioning mechanism for the construction of elevated bridge piers, which adopts a lifting conical extrusion shell structure. The extrusion wheel can drive the concave bar and the positioning wheel to shrink and slide, and the positioning wheel can be adjusted to shrink in a circle at the same time. The positioning spacing can be adjusted and can be adjusted synchronously and equidistantly. When the steel cage is lowered, it is easy to fit stably without causing center offset. The positioning is precise and the adjustment is synchronous. The operation is simple and easy to use.

[0006] In order to solve the above problems, the present invention adopts the following technical solutions.

[0007] A steel cage positioning mechanism for the construction of elevated bridge piers, comprising a convex tube, the inner surface of the convex tube being slidably interspersed with support bars, and the support bars being distributed on the inner surface of the upper end of the convex tube, the inner end surface of the support bar being fixed with a concave bar, the inner surface of the concave bar being provided with a positioning wheel, the inner surface of the support bar being provided with an extrusion wheel, the outer surface of the convex tube being slidably sleeved with a conical extrusion shell, the inner surface of the conical extrusion shell being slidably fitted on the outer surface of the extrusion wheel, and the inner surface of the lower end of the conical extrusion shell being fitted on the outer surface of the convex tube. The surface of the conical extrusion shell is connected with a threaded top screw on the inner surface of the lower end through a threaded connection. The lower surface of the threaded top screw is squeezed on the lower end surface of the convex tube. The threaded top screws are distributed on the inner end surfaces of the left and right sides of the conical extrusion shell. The lifting conical extrusion shell structure is adopted. The extrusion wheel can drive the concave bar and the positioning wheel to shrink and slide. The positioning wheel can be adjusted to shrink in one circle at the same time. The positioning spacing can be adjusted and can be adjusted synchronously and equidistantly. When the steel cage is lowered, it is easy to fit stably without causing center deviation. The positioning is precise and the adjustment is synchronous. The operation is simple and easy to use.

[0008] Furthermore, the outer surface of the lower end of the concave strip is fixedly connected to a positioning rod, the inner surface of the lower end of the convex tube is provided with a through slot, and the outer surface of the positioning rod is slidably connected to the inner surface of the through slot of the convex tube.

[0009] Furthermore, the positioning wheels are evenly distributed from top to bottom on the inner surface of the concave strip, and the positioning wheels are made of stainless steel wheels, and the outer end surfaces thereof are polished.

[0010] Furthermore, two threaded holes are provided on the lower end surface of the tapered extrusion shell, and the outer surface of the threaded top screw is connected to the inner surface of the threaded hole.

[0011] Furthermore, the two groups of support bars are fixed on the outer surface of the concave bars, and the eight groups of support bars and concave bars are evenly distributed on the inner surface of the convex tube.

[0012] Furthermore, a square sliding opening is provided on the upper side of the convex tube, and the outer surface of the support bar is slidably connected to the inner surface of the square sliding opening.

[0013] Furthermore, positioning holes are provided on the lower end surface of the convex tube, and four groups of positioning holes are distributed on the lower end surface of the convex tube.

[0014] Compared with the prior art, the advantages of the present invention are:

[0015] (1) It adopts a lifting conical extrusion shell structure. The extrusion wheel can drive the concave strip and the positioning wheel to shrink and slide. The positioning wheel of a circle can be adjusted to shrink at the same time. The positioning spacing can be adjusted synchronously and equidistantly. When the steel cage is lowered, it is easy to fit stably without causing center deviation. The positioning is precise and the adjustment is synchronous. It is simple to operate and easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is the first schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is the second view of the overall structure of the utility model;

[0018] Figure 3 This is a cross-sectional view of the overall structure of the utility model;

[0019] Figure 4 This is a top view of the overall structure of the utility model;

[0020] Figure 5 This is a distribution view of the concave fish positioning wheel of the utility model.

[0021] Description of the numbers in the figure:

[0022] 1 convex tube, 2 support bar, 3 concave bar, 4 positioning wheel, 5 extrusion wheel, 6 conical extrusion shell, 7 threaded top screw, 8 positioning rod, 80 through slot, 20 square slide, 9 positioning hole. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] Example 1

[0025] See also Figure 1-5A steel cage positioning mechanism for the construction of an elevated bridge pier comprises a convex tube 1, the inner surface of the convex tube 1 is slidably interspersed with a support bar 2, and the support bar 2 is distributed on the inner surface of the upper end of the convex tube 1, the inner end surface of the support bar 2 is fixed with a concave bar 3, the inner surface of the concave bar 3 is provided with a positioning wheel 4, the inner surface of the support bar 2 is provided with an extrusion wheel 5, the outer surface of the convex tube 1 is slidably sleeved with a conical extrusion shell 6, the inner surface of the conical extrusion shell 6 is slidably fitted on the outer surface of the extrusion wheel 5, and the inner surface of the lower end of the conical extrusion shell 6 is fitted on the convex tube 1 The outer surface of the tapered extrusion shell 6 is connected to the inner surface of the lower end of the tapered extrusion shell 6 by a threaded connection with a threaded top screw 7. The lower surface of the threaded top screw 7 is squeezed on the lower end surface of the convex tube 1. The threaded top screws 7 are distributed on the inner end surfaces of the left and right sides of the tapered extrusion shell 6. The tapered extrusion shell structure of the lifting type is adopted. The extrusion wheel can drive the concave strip and the positioning wheel to shrink and slide. The positioning wheel of a circle can be adjusted to shrink at the same time. The positioning spacing can be adjusted synchronously and equidistantly. When the steel cage is lowered, it is easy to fit and stabilize without causing center deviation. The positioning is precise and the adjustment is synchronized. The operation is simple and easy to use.

[0026] The outer surface of the lower end of the concave strip 3 is fixedly connected with a positioning rod 8, and the inner surface of the lower end of the convex tube 1 is provided with a through slot 80. The outer surface of the positioning rod 8 is slidably connected to the inner surface of the through slot 80 of the convex tube 1, so that when the concave strip 3 slides, the bottom positioning rod 8 can be driven to slide in the through slot 80, which can provide sliding positioning support and stable movement.

[0027] The positioning wheels 4 are evenly distributed from top to bottom on the inner surface of the concave strip 3. The positioning wheels 4 are made of stainless steel wheels, and their outer end surfaces are polished to facilitate the steel cage to fit on the positioning wheels 4 and descend, reducing the friction when the steel cage is lowered and inserted;

[0028] The lower end surface of the conical extruded shell 6 is provided with two threaded holes, and the outer surface of the threaded top screw 7 is connected to the inner surface of the threaded hole, which is convenient for the installation and use of the threaded top screw 7;

[0029] Two groups of support bars 2 are fixed on the outer surface of the concave bars 3, and eight groups of support bars 2 and concave bars 3 are evenly distributed on the inner surface of the convex tube 1. The positioning wheels 5 are evenly distributed, which can stably support and position the steel cage when it is inserted;

[0030] A square sliding opening 20 is provided on the upper side of the convex tube 1, and the outer surface of the support bar 2 is slidably connected to the inner surface of the square sliding opening 20, which is convenient for installation. Positioning holes 9 are provided on the lower end surface of the convex tube 1. Four groups of positioning holes 9 are distributed on the lower end surface of the convex tube 1. Positioning rivets can be inserted along the positioning holes 9 to fix the convex tube 1 in the pile hole.

[0031] When in use, the convex tube 1 is fixed on the surface of the pile hole of the viaduct pier. At this time, the position spacing of the concave bar 3 and the positioning wheel 4 is adjusted according to the size of the steel cage. The inner surface of the concave bar 3 is provided with a positioning wheel 4, and the inner surface of the support bar 2 is provided with an extrusion wheel 5. The outer surface of the convex tube 1 is slidably sleeved with a conical extrusion shell 6. The inner surface of the conical extrusion shell 6 slides and fits the outer surface of the extrusion wheel 5. The inner surface of the lower end of the conical extrusion shell 6 fits the outer surface of the convex tube 1. When adjusting, the threaded top screws 7 on both sides are rotated downward to drive the conical extrusion shell 6 to slide upward, and the inclined surface extrusion wheel 5 can slide, which can drive the support bar 2 to slide toward the inner end, and can drive the positioning wheel 4 to adjust and slide, so that the steel cage can slide in accordance with the positioning wheel 4 when it descends. It can be inserted and positioned, and the adjustment is stable. It can be adjusted synchronously and equidistantly, and the operation is convenient and simple.

[0032] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any person skilled in the art who, within the technical scope disclosed in the present invention, makes equivalent substitutions or modifications based on the technical solution and its improved concepts shall be covered by the scope of protection of the present invention.

Claims

1. A steel cage positioning mechanism for elevated bridge pier construction, comprising a convex tube (1), characterized in that: The inner surface of the convex tube (1) is slidably interspersed with a support bar (2), and the support bar (2) is distributed on the inner surface of the upper end of the convex tube (1); the inner surface of the support bar (2) is fixed with a concave bar (3), the inner surface of the concave bar (3) is provided with a positioning wheel (4), and the inner surface of the support bar (2) is provided with an extrusion wheel (5); the outer surface of the convex tube (1) is slidably sleeved with a conical extrusion shell (6), the inner surface of the conical extrusion shell (6) is slidably fitted on the outer surface of the extrusion wheel (5), the lower inner surface of the conical extrusion shell (6) is fitted on the outer surface of the convex tube (1), the lower inner surface of the conical extrusion shell (6) is connected to the outer surface of the convex tube (1), and the lower inner surface of the conical extrusion shell (6) is connected to a threaded top screw (7) through a thread, the lower surface of the threaded top screw (7) is squeezed on the lower end surface of the convex tube (1), and the threaded top screw (7) is distributed on the inner end surfaces of the left and right sides of the conical extrusion shell (6).

2. A steel cage positioning mechanism for elevated bridge pier construction according to claim 1, characterized in that: The outer surface of the lower end of the concave strip (3) is fixedly connected to a positioning rod (8), the inner surface of the lower end of the convex tube (1) is provided with a through slot (80), and the outer surface of the positioning rod (8) is slidably connected to the inner surface of the through slot (80) of the convex tube (1).

3. The steel cage positioning mechanism for elevated bridge pier construction according to claim 1, characterized in that: The positioning wheels (4) are evenly distributed from top to bottom on the inner surface of the concave strip (3). The positioning wheels (4) are made of stainless steel wheels, and their outer end surfaces are polished.

4. The steel cage positioning mechanism for elevated bridge pier construction according to claim 1, characterized in that: The lower end surface of the conical extrusion shell (6) is provided with two threaded holes, and the outer surface of the threaded top screw (7) is connected to the inner surface of the threaded hole.

5. The steel cage positioning mechanism for elevated bridge pier construction according to claim 1, characterized in that: Two groups of the support bars (2) are fixed on the outer surface of the concave bars (3), and eight groups of the support bars (2) and the concave bars (3) are evenly distributed on the inner surface of the convex tube (1).

6. The steel cage positioning mechanism for elevated bridge pier construction according to claim 1, characterized in that: A square sliding opening (20) is provided on the upper side of the convex tube (1), and the outer surface of the support bar (2) is slidably connected to the inner surface of the square sliding opening (20).

7. The steel cage positioning mechanism for elevated bridge pier construction according to claim 1, characterized in that: Positioning holes (9) are provided on the lower end surface of the convex tube (1), and four groups of positioning holes (9) are distributed on the lower end surface of the convex tube (1).

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