Telescopic cast-in-place pile reinforcement cage positioning device

Abstract

The utility model relates to the technical field of buildings, and discloses a telescopic cast-in-place pile reinforcement cage positioning device which comprises a connecting ring, the periphery of the inner ring of the connecting ring is provided with the same square groove hole, and the two sides of the inner walls of the four square groove holes are provided with moving grooves. An adjusting mechanism and a positioning mechanism are arranged in the connecting ring, the adjusting mechanism comprises four U-shaped bases fixedly connected to the periphery of the top of the connecting ring, the top of one U-shaped base is fixedly connected with a servo motor, the output end of the servo motor is sleeved with a first lead screw through a coupler, and the output end of the first lead screw is sleeved with a second lead screw through a coupler; and inner cavities of the other three U-shaped seats are rotationally connected with a second lead screw, a third lead screw and a fourth lead screw through bearings correspondingly. And through the arranged adjusting mechanism, an operator can conveniently and automatically move the positioning mechanism up and down to detect whether the reinforcement cage is in a vertical and non-inclined state or not and straighten the reinforcement cage, and therefore the using effect of the device can be effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of building technology, specifically to a retractable positioning device for cast-in-place pile reinforcement cages. Background Technology

[0002] When a concrete structure is a column or strip member, its central part does not require reinforcement; only the surface of the concrete member exposed to air is reinforced. If the member is independent, the reinforcing steel around its perimeter is prefabricated to form a reinforcing cage. Prefabricated reinforcing steel structures such as bored piles, drilled piles, and columns are commonly referred to as reinforcing cages. During the construction of bridges, culverts, or high-rise buildings, foundations may need to be drilled. This is done using machine-drilled holes and water-jet drills to achieve the designed depth. The reinforcing cage is then lowered into the hole, and a tremie pipe is inserted for concrete pouring.

[0003] However, existing positioning devices for cast-in-place pile reinforcement cages are not effective enough in positioning the reinforcement cages and cannot automatically detect and adjust the position of the reinforcement cages after installation. In actual use, this will have a certain impact on the positioning of the reinforcement cages. Therefore, we propose a retractable positioning device for cast-in-place pile reinforcement cages. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a retractable positioning device for cast-in-place pile reinforcement cages, which solves the aforementioned problems.

[0006] (II) Technical Solution

[0007] To achieve the above-mentioned objectives, the present invention provides the following technical solution: a retractable positioning device for cast-in-place pile reinforcement cages, comprising a connecting ring, wherein the inner circumference of the connecting ring is provided with the same square slot, and the inner walls of the four square slots are provided with movable slots on both sides, and the connecting ring is provided with an adjustment mechanism and a positioning mechanism respectively.

[0008] The adjustment mechanism includes four U-shaped seats fixedly connected to the top of the connecting ring. A servo motor is fixedly connected to the top of one of the U-shaped seats. The output end of the servo motor is fitted with a first lead screw via a coupling. The inner cavities of the other three U-shaped seats are rotatably connected to a second lead screw, a third lead screw, and a fourth lead screw via bearings. The outer rings of the first, second, third, and fourth lead screws are fitted with a first pulley, a second pulley, a third pulley, and a fourth pulley, respectively. A square seat is fitted in the middle of each of the first, second, third, and fourth lead screws. A lead screw hole is opened through the top of each of the four square seats. Movable blocks that are adapted to the moving groove are fixedly connected to both sides of each of the four square seats.

[0009] Preferably, each of the square seats is fitted into the middle of the first, second, third, and fourth lead screws through lead screw holes, and each is slidably connected to the connecting ring in the moving groove through a corresponding moving block.

[0010] Preferably, the outer rings of the first pulley and the second pulley, the second pulley and the third pulley and the fourth pulley, and the fourth pulley and the second pulley are all movably connected to belts, and the four belts do not contact each other and the inner rings of the belts are all frosted.

[0011] Preferably, the positioning mechanism includes hydraulic telescopic rods fixedly connected to one side of the four square seats. The output ends of the four hydraulic telescopic rods are all fixedly connected to a first positioning ring. The four first positioning rings have mounting grooves on both sides. The inner cavity of each mounting groove is provided with a second positioning ring. The second positioning rings are arranged in pairs, and a total of four sets are provided. The middle of each of the four sets of second positioning rings is provided with multiple first threaded holes. The two sides of each of the four first positioning rings are provided with second threaded holes. The inner cavities of the second threaded holes and the first threaded holes are all threadedly connected with fixing bolts.

[0012] Preferably, each set of second positioning rings is slidably connected to the inner cavity of the mounting groove by a fixing bolt within the first threaded hole and the second threaded hole.

[0013] Preferably, the contact points between the first and second positioning rings and the reinforcing cage are both frosted.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, this utility model provides a retractable positioning device for cast-in-place pile reinforcement cages, which has the following features:

[0016] Beneficial effects:

[0017] 1. This retractable cast-in-place pile reinforcement cage positioning device drives the first lead screw and the first pulley to rotate via the output end of a servo motor. During rotation, the second pulley and the second lead screw are driven to rotate via a corresponding belt. The third pulley and the third lead screw are also driven to rotate via a corresponding belt. The fourth pulley and the fourth lead screw are then driven to rotate via a corresponding belt. Simultaneously, the fourth pulley and the fourth lead screw rotate with the first pulley and the first lead screw via a corresponding belt. This causes the first and second lead screws to rotate together with the third and fourth lead screws. During rotation, the four square seats move up and down within the moving slots via four corresponding lead screw holes, moving the positioning mechanism along with the moving blocks. This allows operators to automatically move the positioning mechanism up and down to check if the reinforcement cage is vertical and tilt-free, and to straighten it, thus effectively improving the device's performance.

[0018] 2. This retractable cast-in-place pile reinforcement cage positioning device, by placing the reinforcement cage between four first positioning rings, and then having four hydraulic telescopic rods move the four first positioning rings to the outer perimeter of the reinforcement cage, tightly clamping and fixing the four first positioning rings to the outer perimeter of the reinforcement cage. When the distance between the four first positioning rings is large, the fixing bolts are turned counterclockwise in the first and second threaded holes to release the fixation between each group of second positioning rings and the first positioning rings. After releasing the fixation, each group of second positioning rings is pulled outward in the mounting groove to increase the area of ​​the first positioning rings. After moving to a suitable position, the second positioning rings are fixed by the fixing bolts. This allows the operator to easily adjust the diameter of the reinforcement cage according to its diameter, thus enabling the device to have diversified uses. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the connecting ring structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the adjustment mechanism of this utility model;

[0022] Figure 4 This is a schematic diagram of the positioning mechanism of this utility model.

[0023] In the diagram: 1. Connecting ring; 2. Square slot; 3. Moving slot; 4. U-shaped seat; 5. Servo motor; 6. First lead screw; 7. Second lead screw; 8. Third lead screw; 9. Fourth lead screw; 10. First pulley; 11. Second pulley; 12. Third pulley; 13. Fourth pulley; 14. Belt; 15. Square seat; 16. Lead screw hole; 17. Moving block; 18. Hydraulic telescopic rod; 19. First positioning ring; 20. Mounting slot; 21. Second positioning ring; 22. First threaded hole; 23. Second threaded hole; 24. Fixing bolt. Detailed Implementation

[0024] 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.

[0025] Please see Figures 1-4A retractable positioning device for cast-in-place pile reinforcement cage includes a connecting ring 1. The inner ring of the connecting ring 1 has the same square slot 2 around its four sides. The inner walls of the four square slots 2 have movable slots 3 on both sides. The connecting ring 1 is equipped with an adjustment mechanism and a positioning mechanism.

[0026] The adjustment mechanism includes four U-shaped seats 4 fixedly connected to the top periphery of the connecting ring 1. A servo motor 5 is fixedly connected to the top of one U-shaped seat 4. The output end of the servo motor 5 is fitted with a first lead screw 6 via a coupling. The inner cavities of the other three U-shaped seats 4 are rotatably connected to a second lead screw 7, a third lead screw 8, and a fourth lead screw 9 respectively via bearings. The outer rings of the first lead screw 6, the second lead screw 7, the third lead screw 8, and the fourth lead screw 9 are respectively fitted with a first pulley 10, a second pulley 11, a third pulley 12, and a fourth pulley 13. The middle portions of the first lead screw 6, the second lead screw 7, the third lead screw 8, and the fourth lead screw 9 are each fitted with... The top of each of the four square seats 15 has a through-hole 16 for the lead screw. Each of the four square seats 15 has a fixedly connected movable block 17 that is compatible with the movable groove 3. The square seats 15 are respectively fitted into the middle of the first lead screw 6, the second lead screw 7, the third lead screw 8, and the fourth lead screw 9 through the lead screw holes 16, and are slidably connected to the connecting ring 1 in the movable groove 3 through the corresponding movable block 17. With the adjustment mechanism, the operator can easily move the positioning mechanism up and down to detect whether the steel cage is in a vertical and tilted state and straighten it, thereby effectively improving the use effect of this device.

[0027] Furthermore, the outer rings of the first pulley 10 and the second pulley 11, the second pulley 11 and the third pulley 12, the third pulley 12 and the fourth pulley 13, and the fourth pulley 13 and the second pulley 11 are all movably connected to belts 14. The four belts 14 do not contact each other and the inner rings of the belts are all frosted. By using the four belts 14, the first lead screw 6, the second lead screw 7, the third lead screw 8, and the fourth lead screw 9 can rotate synchronously, thereby reducing the power source required for the device during use and also reducing the required operating costs.

[0028] Furthermore, the positioning mechanism includes hydraulic telescopic rods 18 fixedly connected to one side of four square seats 15. Each of the four hydraulic telescopic rods 18 has a first positioning ring 19 fixedly connected to its output end. Each of the four first positioning rings 19 has a mounting groove 20 on both sides. Each mounting groove 20 has a second positioning ring 21 inside its cavity. The second positioning rings 21 are arranged in pairs, with a total of four sets. Each of the four sets of second positioning rings 21 has multiple first threaded holes 22 in its center. Each of the four first positioning rings 19 has a second threaded hole 23 on both sides. The second threaded holes 23 and the inner cavities of the first threaded holes 22 are threadedly connected to fixing bolts 24. Each set of second positioning rings 21 is slidably connected to the inner cavity of the mounting groove 20 through the fixing bolts 24 within the first threaded holes 22 and second threaded holes 23. This positioning mechanism allows operators to easily adjust the diameter of the reinforcing cage using a telescopic method, thus enabling the device to have diverse applications.

[0029] Furthermore, the contact positions of the first positioning ring 19 and the second positioning ring 21 with the reinforcing cage are both frosted. By setting the contact positions of the first positioning ring 19 and the second positioning ring 21 with the reinforcing cage to frosted, the frictional resistance with the reinforcing cage can be increased, thereby preventing spontaneous sliding and providing stability for the fixed positioning of the reinforcing cage.

[0030] In use, this utility model is as follows: First, the reinforcing cage is placed between the four first positioning rings 19. Then, the four hydraulic telescopic rods 18 drive the four first positioning rings 19 to move to the outer perimeter of the reinforcing cage, tightly clamping and fixing the four first positioning rings 19 to the outer perimeter of the reinforcing cage. When the distance between the four first positioning rings 19 is large, the fixing bolts 24 are turned counterclockwise in the first threaded hole 22 and the second threaded hole 23 to release the fixation of each group of second positioning rings 21 to the first positioning rings 19. After releasing the fixation, each group of second positioning rings 21 is pulled outward in the mounting groove 20 to increase the area of ​​the first positioning rings 19. After moving to a suitable position, the second positioning rings 21 are fixed by the fixing bolts 24. This allows the operator to easily adjust the diameter of the reinforcing cage according to its diameter, thus enabling the device to have diversified uses. After fixing, the servo motor 5... The output end drives the first lead screw 6 and the first pulley 10 to rotate. During rotation, the second pulley 11 and the second lead screw 7 are driven to rotate via the corresponding belt 14. During rotation, the third pulley 12 and the third lead screw 8 are driven to rotate via the corresponding belt 14. During rotation, the fourth pulley 13 and the fourth lead screw 9 are driven to rotate via the corresponding belt 14. At the same time, the fourth pulley 13 and the fourth lead screw 9 rotate with the first pulley 10 and the first lead screw 6 via the corresponding belt 14. Then, the first lead screw 6 and the second lead screw 7 rotate together with the third lead screw 8 and the fourth lead screw 9. During rotation, the four square seats 15 are driven to move up and down in the moving groove 3 through the four corresponding lead screw holes 16 via the moving block 17. At the same time, the positioning mechanism moves together, which makes it convenient for the operator to automatically move the positioning mechanism up and down to detect whether the steel cage is in a vertical and tilted state and straighten it, thereby effectively improving the use effect of this device.

[0031] 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 retractable positioning device for a cast-in-place pile reinforcement cage, comprising a connecting ring (1), characterized in that: The inner ring (1) has the same square slot (2) around its perimeter. The inner walls of the four square slots (2) are provided with moving slots (3) on both sides. The connecting ring (1) is provided with an adjustment mechanism and a positioning mechanism. The adjustment mechanism includes four U-shaped seats (4) fixedly connected to the top periphery of the connecting ring (1). A servo motor (5) is fixedly connected to the top of one of the U-shaped seats (4). The output end of the servo motor (5) is fitted with a first lead screw (6) through a coupling. The inner cavities of the other three U-shaped seats (4) are respectively rotatably connected to a second lead screw (7), a third lead screw (8), and a fourth lead screw (9) through bearings. The first lead screw (6) is connected to the second lead screw (7) and the third lead screw (8). The outer ring of the fourth lead screw (9) is fitted with the first pulley (10), the second pulley (11), the third pulley (12), and the fourth pulley (13). The middle part of the first lead screw (6), the second lead screw (7), the third lead screw (8), and the fourth lead screw (9) is fitted with a square seat (15). The top of each of the four square seats (15) is provided with a lead screw hole (16). The two sides of each of the four square seats (15) are fixedly connected with a moving block (17) that is compatible with the moving groove (3).

2. The retractable cast-in-place pile reinforcement cage positioning device according to claim 1, characterized in that: The square bases (15) are respectively fitted into the middle of the first lead screw (6), the second lead screw (7), the third lead screw (8), and the fourth lead screw (9) through the lead screw hole (16), and are slidably connected to the connecting ring (1) in the moving groove (3) through the corresponding moving block (17).

3. The retractable cast-in-place pile reinforcement cage positioning device according to claim 1, characterized in that: The outer rings of the first pulley (10) and the second pulley (11), the second pulley (11) and the third pulley (12), the third pulley (12) and the fourth pulley (13), and the fourth pulley (13) and the second pulley (11) are all movably connected with belts (14). The four belts (14) do not contact each other and their inner rings are all frosted.

4. The retractable cast-in-place pile reinforcement cage positioning device according to claim 1, characterized in that: The positioning mechanism includes a hydraulic telescopic rod (18) fixedly connected to one side of the four square seats (15). The output ends of the four hydraulic telescopic rods (18) are all fixedly connected to a first positioning ring (19). The four first positioning rings (19) are provided with mounting grooves (20) on both sides. The inner cavity of the mounting grooves (20) is provided with a second positioning ring (21). The second positioning rings (21) are arranged in pairs and there are four sets in total. The middle of the four sets of second positioning rings (21) is provided with multiple first threaded holes (22). The two sides of the four first positioning rings (19) are provided with second threaded holes (23). The inner cavities of the second threaded holes (23) and the first threaded holes (22) are threadedly connected with fixing bolts (24).

5. A retractable cast-in-place pile reinforcement cage positioning device according to claim 4, characterized in that: Each set of second positioning rings (21) is slidably connected to the inner cavity of the mounting groove (20) in the first threaded hole (22) and the second threaded hole (23) by a fixing bolt (24).

6. The retractable cast-in-place pile reinforcement cage positioning device according to claim 4, characterized in that: The first positioning ring (19) and the second positioning ring (21) are both frosted at the contact points with the steel cage.

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