Bridge pier column reinforcement cage fast installation fixture

Abstract

The utility model belongs to the field of bridge pier construction technology, concretely relates to bridge pier reinforcement cage fast installation fixture, including support frame, the recess that is set up in the top four arounds of support frame all is fixed with fixed outer plate, the inside of fixed outer plate slides and has the telescopic inner plate of vertical section being L shape structure, the first arc -shaped support groove that is seted up in the top of one end of telescopic inner plate far from fixed outer plate, the gravity positioning assembly that is installed all has on telescopic inner plate, gravity positioning assembly still all with the top of fixed outer plate cooperation. The utility model's bridge pier reinforcement cage fast installation fixture, the steel reinforcement cage main body is put into the steel casing that is embedded in advance in the ground in the external crane hoist, secondly, four lifting eyes are placed in the corresponding first arc -shaped support groove respectively, and under the action of steel reinforcement cage gravity droop, make every first arc -shaped support groove both sides all be under the pressure of sliding connection's side edge support block and be pressed down.

Description

Technical Field

[0001] This utility model belongs to the field of bridge pier construction technology, specifically relating to a quick installation clamp for bridge pier steel cages. Background Technology

[0002] In bridge pier construction, the installation accuracy and efficiency of the reinforcing cage directly affect the project quality and construction progress. Currently, common rapid installation clamps for bridge pier reinforcing cages typically employ a positioning platform combined with an adjustable movable plate. The specific operation method is as follows:

[0003] Positioning platform fixing: Place the positioning platform with the circular stirrups installed flat on the ground after it has been rolled on top of the steel casing to ensure levelness.

[0004] Rebar cage hoisting: The rebar cage is lifted using hoisting equipment, and multiple lifting rings at the top are hung on the retractable and adjustable movable plates around the positioning platform.

[0005] Manual adjustment and fixing: The position of the movable plate is adjusted manually to initially position the steel cage, and then it is fixed by welding, bolting or temporary baffles to ensure the verticality and stability of the steel cage.

[0006] However, existing technologies have the following drawbacks:

[0007] Unable to effectively utilize gravity for self-locking:

[0008] The lack of an automatic locking mechanism between the movable plate and the lifting ring prevents the weight of the steel cage from being converted into a fixing force, causing it to sway or shift during hoisting and adjustment, thus affecting positioning accuracy.

[0009] Manual fixation is inefficient.

[0010] The current practice requires workers to manually weld or bolt the top of the rebar cage, which greatly reduces construction efficiency. To address this issue, there is an urgent need for a new type of rebar cage quick installation clamp that can achieve gravity self-locking, rapid positioning, and manual fixing, thereby improving construction efficiency.

[0011] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0012] The purpose of this utility model is to provide a quick installation clamp for the steel cage of bridge pier column, so as to solve the problems that the weight of the steel cage cannot be effectively used to achieve self-locking and that manual fixing leads to low installation efficiency.

[0013] To achieve the above objectives, this utility model provides the following technical solution:

[0014] A quick-installation clamp for the steel reinforcement cage of bridge piers includes a support frame. A fixed outer plate is fixedly connected to grooves around the top of the support frame. An L-shaped telescopic inner plate slides along the inner side of the fixed outer plate. A first arc-shaped support groove is provided at the top of the telescopic inner plate at the end furthest from the fixed outer plate. Gravity positioning components are installed on the telescopic inner plate, and these components also cooperate with the top of the fixed outer plate.

[0015] Preferably, the gravity positioning component includes side supports that are slidably connected to both sides of the telescopic inner plate. The top of each of the two side supports is provided with a second arc-shaped groove. A slider with a convex cross-section is fixedly connected to one of the opposite side walls of the two side supports. The sliders are slidably connected to the grooves opened in the two sides of the telescopic inner plate. The bottom end of each slider is fixed to the inner bottom wall of the groove by a spring.

[0016] Preferably, push-pull rods are rotatably connected to the side walls of the two sliders facing away from each other, near their bottom ends. The bottom ends of the two push-pull rods are rotatably connected to the top of the movable rods. The two movable rods slide in the movable channel opened on the inner side of the telescopic inner plate. Clamping blocks are fixed to the ends of the two movable rods that are far apart from each other. Arc-shaped clamping grooves are opened at the ends of the two clamping blocks that are facing away from each other.

[0017] Preferably, the spring is made of carbon steel.

[0018] Preferably, the two side support blocks are fixedly connected to the same upper toothed plate between the side walls facing the top of the fixed outer plate, and the upper toothed plate can move up and down with the two side support blocks.

[0019] Preferably, the bottom end of the upper toothed plate has a plurality of equally spaced teeth that engage with a plurality of equally spaced teeth fixed to the top end of the fixed outer plate.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] (1) The bridge pier reinforcement cage quick installation clamp of this utility model involves an external crane lifting the main body of the reinforcement cage and placing it into a pre-embedded steel casing embedded in the ground. Then, four lifting rings are placed in their corresponding first arc-shaped slots. Under the downward force of the reinforcement cage's gravity, the side blocks with sliding connections on both sides of each first arc-shaped slot are pressed down, causing the sliders to compress the springs. Combined with the push-pull rods, this causes the two movable rods in each movable channel to extend outwards, clamping the lifting rings and securing them. This quickly fixes the lifting rings onto the telescopic inner plate, avoiding repeated shaking or displacement during the lifting and adjustment process, which affects positioning accuracy. It also significantly improves the construction efficiency of the reinforcement cage. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0023] Figure 2 This is a first-view perspective perspective view of the various components on the telescopic inner plate of this utility model.

[0024] Figure 3 This is a second-view perspective perspective view of each component on the telescopic inner plate of this utility model.

[0025] Figure 4 This is a plan view of the movable channel of this utility model;

[0026] Explanation of key figure labels:

[0027] 1. Support frame; 11. Fixed outer plate; 12. Telescopic inner plate; 13. First arc-shaped bracket; 2. Main body of steel cage; 21. Connecting steel bars; 22. Lifting ring; 3. Gravity positioning component; 31. Side support block; 32. Slider; 33. Spring; 34. Push-pull rod; 35. Movable rod; 351. Movable channel; 36. Clamping block; 37. Upper toothed plate; 38. Tooth. Detailed Implementation

[0028] The technical solution of this utility model patent will be clearly and completely described below. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0029] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] However, existing technologies have the following drawbacks:

[0032] Unable to effectively utilize gravity for self-locking:

[0033] The lack of an automatic locking mechanism between the movable plate and the lifting ring 22 means that the weight of the steel cage cannot be converted into a fixing force, causing it to sway or shift during hoisting and adjustment, thus affecting the positioning accuracy.

[0034] Manual fixation is inefficient.

[0035] Workers need to manually weld or tighten bolts on the top of the steel cage, which greatly reduces construction efficiency.

[0036] See attached document Figure 1-4 The bridge pier reinforcement cage quick installation clamp includes a support frame 1. A fixed outer plate 11 is fixedly connected to the grooves opened around the top of the support frame 1. A telescopic inner plate 12 with an L-shaped vertical cross section slides on the inner side of the fixed outer plate 11. A first arc-shaped support groove 13 is opened on the top of the telescopic inner plate 12 away from the fixed outer plate 11. Gravity positioning components 3 are installed on the telescopic inner plate 12. The gravity positioning components 3 also cooperate with the top of the fixed outer plate 11.

[0037] The top of the main body 2 of the steel cage is fixed with lifting rings 22 by connecting steel bars 21. It is lifted by external lifting equipment and placed into the interior of the pre-drilled steel casing structure in the ground, while the support frame 1 is placed on the ground.

[0038] Furthermore, such as Figure 1-4As shown, in order to achieve self-locking between the steel cage and the telescopic inner plate 12 by utilizing the weight of the steel cage, a gravity positioning component 3 is provided, including side support blocks 31 that are slidably connected to both side walls of the telescopic inner plate 12. The top of each side support block 31 has a second arc-shaped groove. A slider 32 with a convex cross-section is fixedly connected to the opposite side wall of each of the two side support blocks 31. The sliders 32 are slidably connected to the grooves opened on both side walls of the telescopic inner plate 12. The bottom ends of the sliders 32 are fixed to the inner bottom wall of the groove by springs 33. Push-pull rods 34 are rotatably connected to the opposite side walls of the two sliders 32, near their bottom ends. The bottom ends of rods 34 are rotatably connected to the top of movable rods 35. Both movable rods 35 slide in the movable channel 351 opened on the inner side of the telescopic inner plate 12. The ends of the two movable rods 35 that are far apart are fixed with clamping blocks 36. The ends of the two clamping blocks 36 that are opposite to each other are provided with arc-shaped clamping grooves. The spring 33 is made of carbon steel. The same upper toothed plate 37 is fixed between the two side support blocks 31 facing the top of the fixed outer plate 11. The upper toothed plate 37 can move up and down with the two side support blocks 31. The bottom end of the upper toothed plate 37 has multiple equidistant teeth 38 that engage with multiple equidistant teeth 38 fixed to the top of the fixed outer plate 11.

[0039] When the lifting ring 22 is not placed in the first arc-shaped groove, there is no gravity pressing down on the two side blocks 31. Under the reverse action of the carbon steel spring 33, the two movable rods 35 move towards each other and retract into the movable channel 351. In the attached figure, the spring 33 is in a state of being compressed by the slider 32. The material of the spring 33 gives it the characteristics of good stability and long service life.

[0040] In actual use, an external crane lifts the main body 2 of the reinforcing cage and places it into the steel casing pre-embedded in the ground. Next, the four lifting rings 22 are placed in their corresponding first arc-shaped support slots 13. Under the downward force of the reinforcing cage's weight, the side support blocks 31, which are slidably connected on both sides of each first arc-shaped support slot 13, are pressed down, causing the sliders 32 to compress the springs 33. Combined with the push-pull rods 34, this causes the two movable rods 35 in each movable channel 351 to extend outwards, and the clamping blocks 36 clamp and support the lifting rings 22. This quickly and securely installs the lifting rings 22 onto the telescopic inner plate 12, avoiding repeated shaking or displacement during hoisting and adjustment, which could affect positioning accuracy. This also significantly improves the construction efficiency of the reinforcing cage.

[0041] The foregoing description of specific exemplary embodiments of the present invention is for illustrative and explanatory purposes. These descriptions are not intended to limit the present invention to the precise forms disclosed, and it will be apparent that many changes and variations can be made in accordance with the foregoing teachings. The exemplary embodiments were chosen and described in order to explain the specific principles of the present invention and its practical application, thereby enabling those skilled in the art to implement and utilize various different exemplary embodiments of the present invention, as well as various different choices and variations. The scope of the present invention is intended to be defined by the claims and their equivalents.

Claims

1. A quick-installation clamp for the steel cage of a bridge pier, comprising a support frame (1), wherein a fixed outer plate (11) is fixedly connected to the grooves opened around the top of the support frame (1), and a telescopic inner plate (12) with an L-shaped vertical cross-section slides on the inner side of the fixed outer plate (11), characterized in that, A first arc-shaped groove (13) is provided at the top of one end of the telescopic inner plate (12) away from the fixed outer plate (11). Each of the telescopic inner plates (12) is equipped with a gravity positioning component (3), and the gravity positioning component (3) is also matched with the top of the fixed outer plate (11).

2. The bridge pier reinforcement cage quick installation clamp according to claim 1, characterized in that, The gravity positioning component (3) includes side support blocks (31) that are slidably connected to both sides of the telescopic inner plate (12). The top of each of the two side support blocks (31) is provided with a second arc-shaped groove. A slider (32) with a convex cross-section is fixedly connected to one of the opposite side walls of the two side support blocks (31). The sliders (32) are slidably connected to the grooves opened on both sides of the telescopic inner plate (12). The bottom of each slider (32) is fixed to the inner bottom wall of the groove by a spring (33).

3. The bridge pier reinforcement cage quick installation clamp according to claim 1, characterized in that, On the opposite side wall of the two sliders (32), and near their bottom ends, push-pull rods (34) are rotatably connected. The bottom ends of the two push-pull rods (34) are rotatably connected to the top of the movable rods (35). The two movable rods (35) slide in the movable channel (351) opened on the inner side of the telescopic inner plate (12). The opposite ends of the two movable rods (35) are fixed with clamping blocks (36). The opposite ends of the two clamping blocks (36) are provided with arc-shaped clamping grooves.

4. The bridge pier reinforcement cage quick installation clamp according to claim 2, characterized in that, The spring (33) is made of carbon steel.

5. The bridge pier reinforcement cage quick installation clamp according to claim 2, characterized in that, The two side support blocks (31) are fixed to the same upper toothed plate (37) between the side walls facing the top of the fixed outer plate (11), and the upper toothed plate (37) can move up and down with the two side support blocks (31).

6. The bridge pier reinforcement cage quick installation clamp according to claim 5, characterized in that, The bottom end of the upper toothed plate (37) has a plurality of equally spaced teeth (38) that engage with the plurality of equally spaced teeth (38) that are fixed to the top end of the fixed outer plate (11).

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