A corrugated tube positioning and threading aid for precast I-beams

Abstract

This utility model relates to the field of concrete cast-in-place box girder construction technology, and in particular to a corrugated pipe positioning and threading aid for precast I-beams. Addressing the issue that existing methods require manual operation during the pre-fixation of corrugated pipes, this invention provides a corrugated pipe positioning and threading aid for precast I-beams. The aid includes a base with a vertical plate on it. A drive box capable of vertical movement is mounted on the vertical plate, and a drive plate capable of horizontal movement is mounted on the drive box. A clamping device for holding and fixing the corrugated pipe is mounted on the drive plate. After the clamping device clamps and fixes the corrugated pipe, the specific position of the corrugated pipe can be adjusted by controlling the vertical movement of the drive box and the horizontal movement of the drive plate. This device can quickly and accurately adjust the corrugated pipe in multiple dimensions, including horizontal and vertical, greatly improving positioning accuracy, providing reliable support for prestressed construction, and saving manpower.

Description

Technical Field

[0001] This utility model relates to the field of construction technology of cast-in-place concrete box girder, and in particular to a corrugated pipe positioning and threading aid for precast I-beams. Background Technology

[0002] In the construction of precast I-beams, the adjustment and fixation of the corrugated pipe after positioning and threading is a critical process. Currently, the industry generally uses manual methods to adjust the corrugated pipe after threading, followed by fixing it by welding reinforcing bars. This traditional operation method has many drawbacks: on the one hand, manual adjustment relies entirely on worker experience, making it difficult to guarantee the positioning accuracy of the corrugated pipe in multiple directions, which can easily lead to deviations in subsequent prestressing construction and affect the structural quality of the precast I-beam; on the other hand, manual operation is inefficient, especially in batch construction scenarios, where workers experience high labor intensity, and the welding and fixing process requires frequent adjustments of posture and tools, which is time-consuming and increases construction costs and schedule pressure. In addition, manual operation has poor stability and is significantly affected by worker condition and environmental factors, making it difficult to meet the strict requirements of modern engineering for construction quality and efficiency. Therefore, a corrugated pipe positioning and threading auxiliary device for precast I-beams is designed. Utility Model Content

[0003] This invention addresses the issue that existing corrugated pipes require manual operation during pre-fixation by providing a corrugated pipe positioning and threading aid for precast I-beams. This device can quickly and accurately adjust the corrugated pipe in multiple dimensions, including horizontal and vertical, greatly improving positioning accuracy, providing reliable protection for prestressed construction, saving manpower, and effectively solving the problems mentioned in the background art.

[0004] The technical solution adopted by this utility model to solve the above problems is as follows:

[0005] A corrugated pipe positioning and threading aid for a precast I-beam includes a base, a vertical plate on the base, a drive box capable of vertical movement on the vertical plate, a drive plate capable of horizontal movement on the drive box, and a clamping device for clamping and fixing the corrugated pipe on the drive plate. After the clamping device clamps and fixes the corrugated pipe, the specific position of the corrugated pipe can be adjusted by controlling the vertical movement of the drive box and the horizontal movement of the drive plate.

[0006] The drive box is slidably connected to the upright plate, and a telescopic rod is provided at the upper end of the base. The drive box is fixed to the telescopic end of the telescopic rod.

[0007] The front end of the drive box is provided with a rotatable long threaded cylinder. A long threaded rod is threadedly connected to the inner wall of the long threaded cylinder. A connecting plate is fixed to the left end surface of the long threaded rod. Long guide rods that are slidably connected to the drive box are fixed to both the upper and lower ends of the connecting plate. The drive plate is fixed to the right end surface of the long threaded rod.

[0008] The drive box has a first motor installed on its inner wall. The output end of the first motor is fixedly connected to a drive pulley, and the outer surface of the long threaded cylinder is fixedly connected to a driven pulley. The drive pulley and the driven pulley are connected by a belt.

[0009] The clamping device includes a rotatable bidirectional threaded rod, with clamps on both sides of the bidirectional threaded rod. When the bidirectional threaded rod rotates, the two clamps can move inward.

[0010] A second motor is fixedly connected to one side of the drive plate, and a bidirectional threaded rod is fixedly connected to the output end of the second motor. Both ends of the outer surface of the bidirectional threaded rod are threadedly connected to clamps that are slidably connected to the drive plate, and the clamps are fixedly connected to the corresponding clamps.

[0011] The inner wall of the upright plate is slidably connected to a T-shaped seat, a handle is fixedly connected to the T-shaped seat, and a locking device is also provided on the T-shaped seat.

[0012] The locking device includes a key plate, with locking pins fixed to both sides of the key plate, and multiple slots that cooperate with the locking pins are provided on the upright plate.

[0013] A square slide rod is also fixedly connected to the key plate. The square slide rod is slidably connected to the inner wall of the T-shaped seat. The inner wall of the T-shaped seat is also provided with a tension spring that cooperates with the square slide rod.

[0014] Compared with the prior art, this utility model has the following advantages:

[0015] In use, after the corrugated pipe is threaded into the reinforced box girder, it is clamped and fixed by adjusting the clamping device. The specific position of the corrugated pipe can be adjusted by controlling the up-and-down movement of the drive box and the left-and-right movement of the drive plate, thus positioning and welding the corrugated pipe. This device can replace manual adjustment, overcoming the shortcomings of traditional manual operation and offering significant advantages. Through multi-directional adjustment of the mechanical structure and control device, the corrugated pipe can be quickly and accurately adjusted horizontally, vertically, and in other dimensions, greatly improving positioning accuracy and providing reliable assurance for prestressed construction. This auxiliary device assists workers in completing welding and fixing work, simplifying the operation process, reducing the time workers spend in difficult positions, reducing labor intensity, improving welding and fixing efficiency, and shortening the construction cycle. The operation reduces human interference, making construction quality more stable and controllable, which is conducive to improving the overall quality of precast I-beams and meeting the high-quality and high-efficiency construction needs of modern engineering, thus having good economic and social benefits. Attached Figure Description

[0016] Figure 1 This is an isometric view of a corrugated pipe positioning and threading aid for a precast I-beam according to this utility model.

[0017] Figure 2This is a schematic diagram of the installation of the long threaded rod of the corrugated pipe positioning and threading auxiliary device for a precast I-beam according to the present invention.

[0018] Figure 3 This is a schematic diagram of the installation of the upright plate of the corrugated pipe positioning and threading auxiliary device for a precast I-beam according to the present invention.

[0019] Figure 4 This is a schematic diagram of the clamp installation of a corrugated pipe positioning and threading auxiliary device for a precast I-beam according to the present invention.

[0020] Figure 5 This is a schematic diagram of the installation of the long threaded cylinder of the corrugated pipe positioning and threading auxiliary device for a precast I-beam according to this utility model.

[0021] Figure 6 This is a schematic diagram of the pin installation for a corrugated pipe positioning and threading auxiliary device for a precast I-beam according to this utility model.

[0022] Numbering in the diagram: 1-Reinforced box girder, 2-Corrugated pipe, 3-Base, 4-Upright plate, 5-Moving wheel, 6-Telescopic rod, 7-Drive box, 8-Driving pulley, 9-Driven pulley, 10-Long threaded cylinder, 11-Long threaded rod, 12-Long guide rod, 13-Connecting plate, 14-Drive plate, 15-Second motor, 16-Double threaded rod, 17-Clamping plate, 18-Clamping seat, 19-T-shaped seat, 20-Key plate, 21-Pin, 22-Square slide rod, 23-Slot, 24-Handle. Detailed Implementation

[0023] The following are specific embodiments of the present invention, and the technical solution of the present invention will be further described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0024] like Figures 1-6 As shown, this utility model provides a corrugated pipe positioning and threading aid for precast I-beams, including a base 3, a vertical plate 4 on the base 3, a drive box 7 that can move up and down on the vertical plate 4, a drive plate 14 that can move left and right on the drive box 7, and a clamping device for clamping and fixing the corrugated pipe 2 on the drive plate 14; after the clamping device clamps and fixes the corrugated pipe 2, the specific position of the corrugated pipe 2 can be adjusted by controlling the up and down movement of the drive box 7 and the left and right movement of the drive plate 14.

[0025] like Figures 1-3 As shown, the base 3 supports the entire device. Multiple casters 5 are provided at the lower end of the base 3. These casters 5 facilitate the device's movement to a designated position. The casters 5 are existing technology and will not be described further. The upright plate 4 supports the drive box 7. When the drive box 7 moves up and down, it allows the drive plate 14 and clamping device to move up and down. When the drive plate 14 moves left and right, it controls the left and right movement of the clamping device. Figure 1 As shown, after the corrugated pipe 2 is threaded into the reinforced box girder 1, it is clamped and fixed by adjusting the clamping device. The specific position of the corrugated pipe 2 can be adjusted by controlling the up-and-down movement of the drive box 7 and the left-and-right movement of the drive plate 14, thus positioning and welding the corrugated pipe 2. This device can replace manual adjustment, overcoming the shortcomings of traditional manual operation and offering significant advantages. Through multi-directional adjustment of the mechanical structure and control device, the corrugated pipe 2 can be quickly and accurately adjusted horizontally, vertically, and in other dimensions, greatly improving positioning accuracy and providing reliable assurance for prestressed construction. This auxiliary device can assist workers in completing welding and fixing work, simplifying the operation process, reducing the time workers spend in difficult positions, reducing labor intensity, improving welding and fixing efficiency, and shortening the construction cycle. The operation reduces human interference, making construction quality more stable and controllable, which is conducive to improving the overall quality of the precast I-beams and meeting the high-quality and high-efficiency construction needs of modern engineering, thus having good economic and social benefits.

[0026] The drive box 7 is slidably connected to the upright plate 4, and the upper end of the base 3 is provided with a telescopic rod 6. The drive box 7 is fixedly connected to the telescopic end of the telescopic rod 6.

[0027] like Figure 2 As shown, the lower ends of the upright plate 4 and the telescopic rod 6 are both fixed to the base 3. The drive box 7 can slide up and down on the front surface of the upright plate 4. When the telescopic rod 6 extends and retracts, it can control the drive box 7 to move up and down, that is, control the clamping device to move up and down. The telescopic rod 6 is existing technology and will not be described in detail.

[0028] The front end of the drive box 7 is provided with a rotatable long threaded cylinder 10. The inner wall of the long threaded cylinder 10 is threadedly connected to a long threaded rod 11. A connecting plate 13 is fixedly connected to the left end surface of the long threaded rod 11. Both the upper and lower ends of the connecting plate 13 are fixedly connected to long guide rods 12 that are slidably connected to the drive box 7. The drive plate 14 is fixedly connected to the right end surface of the long threaded rod 11.

[0029] like Figure 2 As shown, multiple support seats are fixedly connected to the front surface of the drive box 7. The long guide rods 12 all pass through the corresponding support seats and are slidably connected to the inner wall of the support seats. This is equivalent to the long guide rods 12 being slidably connected to the front end of the drive box 7. The left end of the long guide rods 12 is fixedly connected to the connecting plate 13, and the right end of the long guide rods 12 is fixedly connected to the drive plate 14. Under the limitation of the long guide rods 12, the long threaded rod 11 and the drive plate 14 can only move left and right at the front end of the drive box 7. A bearing seat is rotatably connected to the outer surface of the long threaded cylinder 10. The bottom end of the bearing seat is fixedly connected to the drive box 7, limiting the long threaded cylinder 10 to rotate only on the drive box 7. When the long threaded cylinder 10 rotates, it can drive the long threaded rod 11, the drive plate 14, the clamping device, etc. to move to the designated position through the threaded connection with the long threaded rod 11.

[0030] The inner wall of the drive box 7 is equipped with a first motor, and the output end of the first motor is fixedly connected to a drive pulley 8. The outer surface of the long threaded cylinder 10 is fixedly connected to a driven pulley 9, and the drive pulley 8 and the driven pulley 9 are connected by a belt.

[0031] like Figure 5 As shown, the function of the first motor is to provide rotational power for the drive pulley 8. The motor is existing technology and will not be described in detail. When the first motor starts, it can drive the drive pulley 8 to rotate. When the drive pulley 8 rotates, it can drive the driven pulley 9 and the long threaded cylinder 10 to rotate.

[0032] The clamping device includes a rotatable bidirectional threaded rod 16, with clamps 18 on both sides of the bidirectional threaded rod 16. When the bidirectional threaded rod 16 rotates, the two clamps 18 can move inward.

[0033] like Figure 4 As shown, both ends of the outer surface of the bidirectional threaded rod 16 are rotatably connected to bearing seats, and the bottom ends of the bearing seats are fixed to the drive plate 14, limiting the bidirectional threaded rod 16 to rotate only on the drive plate 14; the clamp 18 is used to press and fix the bellows 2. When the bidirectional threaded rod 16 rotates, the clamp 18 can move inward to press and fix the bellows 2. The clamp 18 can be made of rubber, which can prevent the bellows 2 from being squeezed and deformed when clamped.

[0034] A second motor 15 is fixedly connected to one side of the drive plate 14, and a bidirectional threaded rod 16 is fixedly connected to the output end of the second motor 15. Both ends of the outer surface of the bidirectional threaded rod 16 are threadedly connected to clamping plates 17 that are slidably connected to the drive plate 14, and clamping seats 18 are fixedly connected to the corresponding clamping plates 17.

[0035] like Figure 4 As shown, the second motor 15 provides rotational power to the bidirectional threaded rod 16; the clamping plate 17 can slide up and down on the drive plate 14; the outer surface of the bidirectional threaded rod 16 has two threads with the same pitch but different directions. When the bidirectional threaded rod 16 rotates, it can drive the clamping plate 17 and the clamping seat 18 to move inward or outward synchronously, that is, control the clamping seat 18 to move inward to clamp or move outward to open.

[0036] The inner wall of the upright plate 4 is slidably connected to a T-shaped seat 19, a handle 24 is fixedly connected to the T-shaped seat 19, and a locking device is also provided on the T-shaped seat 19.

[0037] like Figure 3 and Figure 6As shown, the T-shaped base 19 can slide up and down on the inner wall of the upright plate 4. The handle 24 can be used to control the device to move to a designated position. The locking device can lock the position of the T-shaped base 19. That is, after adjusting the T-shaped base 19 and the handle 24 to a suitable height, the T-shaped base 19 and the handle 24 can be fixed when the locking device is opened, making it convenient to use.

[0038] The locking device includes a key plate 20, with locking pins 21 fixedly connected to both sides of the key plate 20, and multiple slots 23 that cooperate with the locking pins 21 are provided on the upright plate 4.

[0039] like Figure 3 and Figure 6 As shown, the key plate 20 is mounted on the T-shaped seat 19 and can move back and forth on the T-shaped seat 19; when the locking pin 21 engages with the locking groove 23, the key plate 20 and the T-shaped seat 19 can be locked, that is, the position of the handle 24 is fixed; when it is necessary to adjust the height of the handle 24, the key plate 20 is driven to move backward, so that the two locking pins 21 disengage from the locking groove 23, and the T-shaped seat 19 and the handle 24 can then move up and down to adjust their positions.

[0040] A square slide rod 22 is also fixedly connected to the key plate 20. The square slide rod 22 is slidably connected to the inner wall of the T-shaped seat 19. The inner wall of the T-shaped seat 19 is also provided with a tension spring that cooperates with the square slide rod 22.

[0041] like Figure 1 As shown, the square slide bar 22 can slide back and forth on the inner wall of the T-shaped seat 19. One end of the tension spring is fixed to the inner wall of the T-shaped seat 19, and the other end of the tension spring is fixed to the square slide bar 22. The tension spring always has a forward driving force on the square slide bar 22. Under the tension of the tension spring, the key plate 20 and the locking pin 21 can have a forward driving force in normal state, that is, the locking pin 21 can stably engage with the locking groove 23 in normal state.

[0042] In use, after the corrugated pipe 2 is threaded into the reinforced box girder 1, it is clamped and fixed by adjusting the clamping device. The specific position of the corrugated pipe 2 can be adjusted by controlling the up-and-down movement of the drive box 7 and the left-and-right movement of the drive plate 14, thus positioning and welding the corrugated pipe 2. This device can replace manual adjustment, overcoming the shortcomings of traditional manual operation and offering significant advantages. Through multi-directional adjustment of the mechanical structure and control device, the corrugated pipe 2 can be quickly and accurately adjusted horizontally, vertically, and in other dimensions, greatly improving positioning accuracy and providing reliable assurance for prestressed construction. This auxiliary device assists workers in completing welding and fixing work, simplifying the operation process, reducing the time workers spend in difficult positions, reducing labor intensity, improving welding and fixing efficiency, and shortening the construction cycle. The operation reduces human interference, making construction quality more stable and controllable, which is conducive to improving the overall quality of precast I-beams and meeting the high-quality and high-efficiency construction needs of modern engineering, thus having good economic and social benefits.

Claims

1. A corrugated tube positioning and threading aid for a precast I-beam, comprising a base (3), characterized in that: The base (3) is provided with a vertical plate (4), and a drive box (7) that can move up and down is installed on the vertical plate (4). A drive plate (14) that can move left and right is installed on the drive box (7). A clamping device for clamping and fixing the corrugated pipe (2) is installed on the drive plate (14). After the clamping device clamps and fixes the corrugated pipe (2), the specific position of the corrugated pipe (2) can be adjusted by controlling the drive box (7) to move up and down and the drive plate (14) to move left and right.

2. The corrugated tube positioning and threading aid for a precast I-beam as described in claim 1, characterized in that: The drive box (7) is slidably connected to the upright plate (4), and the upper end of the base (3) is provided with a telescopic rod (6). The drive box (7) is fixedly connected to the telescopic end of the telescopic rod (6).

3. The corrugated tube positioning and threading aid for a precast I-beam as described in claim 1, characterized in that: The front end of the drive box (7) is provided with a rotatable long threaded cylinder (10). The inner wall of the long threaded cylinder (10) is threaded with a long threaded rod (11). A connecting plate (13) is fixed to the left end surface of the long threaded rod (11). Both the upper and lower ends of the connecting plate (13) are fixed with long guide rods (12) that are slidably connected to the drive box (7). The drive plate (14) is fixed to the right end surface of the long threaded rod (11).

4. The corrugated pipe positioning and threading aid for a precast I-beam as described in claim 3, characterized in that: The drive box (7) is equipped with a first motor on its inner wall. The output end of the first motor is fixedly connected to a drive pulley (8). The outer surface of the long threaded cylinder (10) is fixedly connected to a driven pulley (9). The drive pulley (8) and the driven pulley (9) are connected by a belt.

5. The corrugated pipe positioning and threading aid for a precast I-beam as described in claim 1, characterized in that: The clamping device includes a rotatable bidirectional threaded rod (16), with clamps (18) on both sides of the bidirectional threaded rod (16). When the bidirectional threaded rod (16) rotates, the two clamps (18) can move inward.

6. The corrugated pipe positioning and threading aid for a precast I-beam as described in claim 5, characterized in that: The second motor (15) is fixedly connected to one side of the drive plate (14), and the bidirectional threaded rod (16) is fixedly connected to the output end of the second motor (15). Both ends of the outer surface of the bidirectional threaded rod (16) are threadedly connected to the clamping plate (17) which is slidably connected to the drive plate (14). The clamping seats (18) are all fixedly connected to the corresponding clamping plates (17).

7. The corrugated tube positioning and threading aid for a precast I-beam as described in claim 1, characterized in that: The inner wall of the upright plate (4) is slidably connected to a T-shaped seat (19), a handle (24) is fixedly connected to the T-shaped seat (19), and a locking device is also provided on the T-shaped seat (19).

8. The corrugated tube positioning and threading aid for a precast I-beam as described in claim 7, characterized in that: The locking device includes a key plate (20), with locking pins (21) fixed on both sides of the key plate (20), and multiple slots (23) that cooperate with the locking pins (21) are provided on the upright plate (4).

9. The corrugated tube positioning and threading aid for a precast I-beam as described in claim 8, characterized in that: A square slide rod (22) is also fixedly connected to the key plate (20). The square slide rod (22) is slidably connected to the inner wall of the T-shaped seat (19). The inner wall of the T-shaped seat (19) is also provided with a tension spring that cooperates with the square slide rod (22).

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