Reinforcement cage lowering positioning device

Abstract

The utility model discloses a positioning device for lowering a reinforcement cage, which belongs to the field of building construction and comprises a steel plate platform, a steel cylinder, a rotating shaft, a bearing, an angle sensor, a fitting cylinder, a locking device, square steel and a controller. The positioning device has the advantages of high positioning precision, good stability, simplicity in operation and the like. When a reinforcement cage is put down, a steel cylinder is placed in a hole where the reinforcement cage needs to be put down, then the reinforcement cage is put down downwards along the center of the steel cylinder, the reinforcement cage makes contact with an attaching cylinder in the putting-down process to drive the attaching cylinder to rotate, and an angle sensor senses the rotating angle of the attaching cylinder and transmits data to a controller; the controller can judge the lowering position of the reinforcement cage according to the rotating angle, and the lowering speed of the reinforcement cage can be judged by measuring the change of the angle in unit time; when descending of the reinforcement cage needs to be stopped, the controller controls the locking device to clamp and fix the reinforcement cage, and then descending of the reinforcement cage can be stopped. Therefore, accurate lowering and positioning of the reinforcement cage are realized.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, specifically a rebar cage lowering and positioning device. Background Technology

[0002] In construction engineering, the lowering and positioning of rebar cages is a crucial step. Traditional methods for lowering and positioning rebar cages suffer from drawbacks such as low positioning accuracy, poor stability, and complex operation, which negatively impact the efficiency and quality of construction projects.

[0003] Therefore, a new rebar cage lowering and positioning device needs to be designed to solve the above problems. Summary of the Invention

[0004] The purpose of this utility model is to solve the problems mentioned in the background art by providing a rebar cage lowering and positioning device.

[0005] The technical solution of this utility model to achieve the above objectives is as follows:

[0006] A rebar cage lowering and positioning device includes a steel plate platform, a steel cylinder, a rotating shaft, a bearing, an angle sensor, a fitting cylinder, a square steel bar, and a controller. The steel plate platform is fixedly connected to the steel cylinder, the steel cylinder is fixedly connected to four rotating shafts, the rotating shafts are fixedly connected to the inner side of the bearings, the outer side of the bearings are fixedly connected to the fitting cylinder, the rotating shafts located on the left and right sides are fixedly connected to the angle sensor, the sensing end of the angle sensor is in contact with the fitting cylinder, one end of the rotating shaft is fixedly connected to the square steel bar, the other end of the square steel bar is fixedly connected to the controller, and the controller is electrically connected to the angle sensor.

[0007] Preferably, the device further includes a locking device, which is fixedly mounted on the rotating shafts located on the front and rear sides, and is electrically connected to the controller.

[0008] Preferably, the locking device is a hydraulic cylinder, the cylinder body of which is fixed on a rotating shaft, and the piston rod end of the hydraulic cylinder is positioned pointing towards the axis of the steel cylinder.

[0009] Preferably, the piston rod end of the hydraulic cylinder is hinged to a fixing plate, and a friction layer is provided on the outer surface of the fixing plate.

[0010] Preferably, the bonding cylinder is provided with a friction layer, and the friction layer is fixedly connected to the outside of the bonding cylinder.

[0011] Preferably, four bonding cylinders are provided, and the four bonding cylinders form a circle. The inner diameter of the circle formed by the four bonding cylinders is the same as the outer diameter of the reinforcing cage.

[0012] Preferably, the circular axes formed by the steel cylinder and the bonding cylinder are the same.

[0013] The steel cage lowering and positioning device provided by this utility model has the following beneficial effects:

[0014] This device, through its structural design, involves placing a steel cylinder into the hole where the reinforcing cage is to be lowered. A steel plate platform supports the device above the hole. The reinforcing cage is then lowered along the center of the steel cylinder. Multiple rotating shafts are fixed inside the cylinder, each shaft connected to the inner ring of a bearing on both sides. During lowering, the reinforcing cage contacts the cylinder, causing it to rotate. This rotation of the cylinder, in turn, causes the outer ring of the bearing to rotate. The inner ring of the bearing remains stationary, while the outer ring rotates with the cylinder. Angle sensors on the rotating shafts on both sides sense the rotation angle and transmit the data to the controller. The controller determines the lowering position of the reinforcing cage based on the rotation angle and can also determine the lowering speed by measuring the angle change per unit time, thus achieving precise positioning. To stop lowering the reinforcing cage, the controller located on the square steel is operated. The controller activates a locking device to stop the rotation of the cylinder and thus stop the lowering of the reinforcing cage. Compared with existing technologies, this utility model has the advantages of high positioning accuracy, good stability and simple operation, and can achieve precise positioning of steel cage lowering. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is a front structural diagram of the present invention.

[0017] Figure 3 This is a schematic diagram of the internal structure of this utility model.

[0018] Figure 4 This is a top view of the structure of this utility model.

[0019] Figure 5 yes Figure 4 A magnified internal structure diagram at point A is shown.

[0020] Figure 6 yes Figure 4 A magnified internal structure diagram at point B is shown.

[0021] In the diagram: 1. Steel plate platform; 2. Steel cylinder; 3. Rotating shaft; 4. Bearing; 5. Angle sensor; 6. Fitting cylinder; 7. Locking device; 8. Square steel; 9. Controller; 10. Friction layer; 11. Fixing plate. Detailed Implementation

[0022] 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.

[0023] In the description of this utility model, it should be noted that the terms "upper / lower end", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc., indicate the orientation or positional relationship 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 this utility model.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "set / set up," "sleeve," "connection," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be 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.

[0025] Please see Figure 1-6 This utility model provides a rebar cage lowering and positioning device, including a steel plate platform 1, a steel cylinder 2, rotating shafts 3, bearings 4, angle sensors 5, fitting cylinders 6, locking devices 7, square steel 8, and a controller 9; the steel plate platform 1 is fixedly connected to the steel cylinder 2, and the steel plate platform 1 is fixed at the top opening of the steel cylinder 2; four rotating shafts 3 are provided, the four rotating shafts 3 are located on the same horizontal plane, and the four rotating shafts 3 are evenly distributed and fixed at the front, back, left, and right positions of the inner wall of the steel cylinder 2; each rotating shaft 3 has two ends, and each end is connected to a bearing 4; four fitting cylinders 6 are provided, and one fitting cylinder is connected between every two rotating shafts 3. 6. The outer side of the bearing 4 at the end of the rotating shaft 3 is fixedly connected to the inner wall of the bonding cylinder 6; the two rotating shafts 3 on the left and right sides are fixedly connected to the angle sensor 5, and the sensing end of the angle sensor 5 is in contact with the bonding cylinder 6; a locking device 7 is fixedly connected to each of the two rotating shafts 3 on the front and rear sides; the rotating shaft 3 is fixedly connected to the bottom end of the square steel 8, the square steel 8 extends upward, and the top end of the square steel 8 extends out of the top opening of the steel cylinder 2. The top end of the square steel 8 is fixedly connected to the controller 9, the controller 9 is electrically connected to the angle sensor 5, the controller 9 is electrically connected to the locking device 7, and the controller 9 is equipped with a display for easy display and operation.

[0026] This invention also includes a locking device 7, which is fixedly mounted on the rotating shafts 3 located on the front and rear sides. The locking device 7 is a hydraulic cylinder, with the cylinder body fixed on the rotating shaft 3 and the piston rod end pointing towards the axis of the steel cylinder 2. A fixing plate 11 is hinged to the piston rod end of the hydraulic cylinder, and a friction layer 10 is provided on the outer surface of the fixing plate 11. The locking device 7 is electrically connected to the controller 9. The controller 9 controls the two hydraulic cylinders to work, with the piston rods of both hydraulic cylinders extending towards the axis of the steel cylinder 2. The fixing plates 11 at the ends of the two piston rods respectively abut against both sides of the reinforcing cage, thereby clamping and fixing the reinforcing cage, completing the operation of stopping the lowering of the reinforcing cage. When it is necessary to resume the lowering of the reinforcing cage, the controller 9 controls the two hydraulic cylinders to work, and the piston rods of both hydraulic cylinders retract, separating the two fixing plates 11 from the reinforcing cage, at which point the operation of lowering the reinforcing cage can be resumed. The friction layer 10 provided on the fixing plate 11 can increase the friction between the fixing plate and the reinforcing cage, and can clamp and fix the reinforcing cage more stably.

[0027] In this utility model, the bonding cylinder 6 is provided with a friction layer 10, which is fixedly connected to the outside of the bonding cylinder 6. The friction layer 10 on the bonding cylinder 6 can increase the friction force when the steel cage contacts the bonding cylinder 6, so that the steel cage can drive the bonding cylinder 6 to rotate more stably when it is lowered.

[0028] In this utility model, four bonding cylinders 6 are provided, and the four bonding cylinders 6 form a circle. The inner diameter of the circle formed by the four bonding cylinders 6 is the same as the outer diameter of the steel cage. The steel cage will only come into contact with the bonding cylinders 6 when it is lowered.

[0029] In this invention, the circular axes formed by the steel cylinder 2 and the fitting cylinder 6 are the same. By using the circular axes formed by the steel cylinder 2 and the fitting cylinder 6, the steel cage can be aligned with the center of the steel cylinder 2 when it is lowered, so that it corresponds to the axis of the circular axis formed by the fitting cylinder 6.

[0030] In this embodiment: When using this utility model, the steel cylinder 2 is placed in the hole where the reinforcing cage is to be lowered. The steel plate platform 1 supports the utility model at the upper end of the hole. Then, the reinforcing cage is lowered downwards along the center of the steel cylinder 2. At least four rotating shafts 3 are evenly distributed and fixed on the inner side of the steel cylinder 2. Each rotating shaft 3 is fixedly connected to the inner ring of a bearing 4 on each side. Four fitting cylinders 6 are respectively connected between two adjacent rotating shafts 3, thus forming a circular fitting cylinder 6. The inner diameter of the circular fitting cylinder 6 is the same as the outer diameter of the reinforcing cage. During the lowering process, the reinforcing cage contacts the fitting cylinder 6, causing the fitting cylinder 6 to rotate. The friction layer 10 on the fitting cylinder 6 can increase the friction coefficient. The friction between the rebar cage and the bonding cylinder 6 allows the rebar cage to rotate more stably when lowered. The rotation of the bonding cylinder 6 causes the outer ring of the bearing 4 to rotate, while the inner ring of the bearing 4 remains stationary. The outer ring of the bearing 4 rotates with the bonding cylinder 6. When the bonding cylinder 6 rotates, the angle sensors 5 on the rotating shafts 3 on the left and right sides sense the angle of rotation of the bonding cylinder 6 and transmit the data to the controller 9. The data line can be set inside the square steel 8. The controller 9 can determine the lowering position of the rebar cage based on the rotation angle, and can determine the lowering speed of the rebar cage by measuring the change in angle per unit time, thereby achieving precise lowering and positioning of the rebar cage.

[0031] When it is necessary to stop the lowering of the reinforcing cage, the controller 9 located on the square steel 8 is operated. The controller 9 controls the two hydraulic cylinders to work. The piston rods of the two hydraulic cylinders extend towards the axis of the steel cylinder 2. The fixing plates 11 at the ends of the two piston rods abut against the two sides of the reinforcing cage, thereby clamping and fixing the reinforcing cage, completing the operation of stopping the lowering of the reinforcing cage. When it is necessary to resume the lowering of the reinforcing cage, the controller 9 controls the two hydraulic cylinders to work. The piston rods of the two hydraulic cylinders retract, and the two fixing plates 11 separate from the reinforcing cage. At this time, the operation of lowering the reinforcing cage can be resumed.

[0032] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rebar cage lowering and positioning device, characterized in that, The system includes a steel plate platform (1), a steel cylinder (2), a rotating shaft (3), a bearing (4), an angle sensor (5), a bonding cylinder (6), a square steel (8), and a controller (9). The steel plate platform (1) is fixedly connected to the steel cylinder (2), the steel cylinder (2) is fixedly connected to four rotating shafts (3), the rotating shafts (3) are fixedly connected to the inner side of the bearings (4), the outer side of the bearings (4) is fixedly connected to the bonding cylinder (6), the rotating shafts (3) located on the left and right sides are fixedly connected to the angle sensors (5), the sensing end of the angle sensors (5) is in contact with the bonding cylinder (6), the rotating shafts (3) are fixedly connected to one end of the square steel (8), the other end of the square steel (8) is fixedly connected to the controller (9), the controller (9) is electrically connected to the angle sensors (5), the angle sensors (5) sense the angle of rotation of the bonding cylinder (6) and transmit the data to the controller (9), and the data line is set inside the square steel (8).

2. The rebar cage lowering and positioning device according to claim 1, characterized in that, It also includes a locking device (7), which is fixedly installed on the rotating shaft (3) located on the front and rear sides, and the locking device (7) is electrically connected to the controller (9).

3. The rebar cage lowering and positioning device according to claim 2, characterized in that, The locking device (7) is a hydraulic cylinder. The cylinder body of the hydraulic cylinder is fixed on the rotating shaft (3), and the piston rod end of the hydraulic cylinder is set in the direction of the axis of the steel cylinder (2).

4. The rebar cage lowering and positioning device according to claim 3, characterized in that, The piston rod end of the hydraulic cylinder is hinged to a fixed plate, and a friction layer (10) is provided on the outer surface of the fixed plate.

5. The rebar cage lowering and positioning device according to claim 1, characterized in that, The bonding cylinder (6) is provided with a friction layer (10), and the friction layer (10) is fixedly connected to the outside of the bonding cylinder (6).

6. The rebar cage lowering and positioning device according to claim 1, characterized in that, There are four bonding cylinders (6), which form a circle. The inner diameter of the circle formed by the four bonding cylinders (6) is the same as the outer diameter of the steel cage.

7. The rebar cage lowering and positioning device according to claim 1, characterized in that, The circular axes formed by the steel cylinder (2) and the bonding cylinder (6) are the same.

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