T-beam pre-tensioned steel strand feeding guide positioning device

Abstract

The utility model discloses a T beam pre -tensioned steel strand line feeding guide positioning device belongs to T beam pre -tensioned steel strand line feeding equipment technical field, including guide pipe, the opening is set on the upper side of guide pipe close to angle grinder one end, the front end of guide pipe is provided with the guide portion, and the guide portion is the bullet structure that gathers after the circumferential opening V -shaped gap of guide pipe, the upper side of guide pipe is provided with the locking lever, and the one end of locking lever is bent and forms the bending part, and the bending part can be inserted into the grouting hole of the upper side of anchor disc seat, and the other end of locking lever sets the threaded portion, and one end of this threaded portion passes through the vertical strip -shaped hole of the connecting plate set up later adopts double -screw nut and clamps the connecting plate locking, and the connecting plate is fixedly connected on the guide pipe. The utility model can greatly improve the guidance of steel strand line feeding into the corrugated pipe prefabricated hole, improve the efficiency of steel strand line feeding and avoid the scratch damage of steel strand line and the mouth portion of anchor disc seat, can also butt joint into the hole of anchor disc seat quickly.

Description

Technical Field

[0001] This utility model belongs to the technical field of T-beam pre-tensioned steel strand feeding equipment, and relates to a T-beam pre-tensioned steel strand feeding guide and positioning device. Background Technology

[0002] In T-beam prefabrication, it is common practice to pre-stretch steel strands into the prefabricated ducts of corrugated pipes and fix them to anchor plates at both ends. The conventional method involves using pre-stretching equipment to pre-stretch the steel strands and inserting them into the prefabricated ducts. This involves constructing a support platform with different heights for different prefabricated duct heights, placing the T-beam pre-stretched steel strand feeding device on the corresponding support platform, and feeding the steel strands into the corresponding prefabricated holes. This method is time-consuming, labor-intensive, and inconvenient for connection. After solving this problem by suspending the steel strand feeding device with a lifting and traveling suspension mechanism, the inventor discovered that the suspension method suffers from swaying, which causes the fed steel strands to rub against the openings of the anchor plates, damaging the steel strands. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide a T-beam pre-tensioned steel strand feeding and positioning device that can realize the feeding of material into the inner hole of the anchor plate seat, avoid scratching, and improve safety.

[0004] The technical solution adopted by this utility model is as follows: a T-beam pre-tensioned steel strand feeding and positioning device, including a guide tube, an opening on the upper side of the guide tube near the angle grinder, after the angle grinder rotates, its cutting blade can cut the pre-tensioned steel strand towards the opening, a guide part is provided at the front end of the guide tube, the guide part is a bullet structure formed by opening a V-shaped notch around the guide tube and then closing it, a locking rod is provided on the upper side of the guide tube, one end of the locking rod is bent to form a bend, the bend can be inserted into the grouting hole on the upper side of the anchor plate, the other end of the locking rod is provided with a threaded part, one end of the threaded part passes through the vertical strip hole provided on the connecting plate and is locked by double nuts clamping the connecting plate, the connecting plate is fixedly connected to the guide tube.

[0005] Furthermore, reinforcing ribs are provided at the bottom and sides of the guide tube along the length of the aforementioned opening section, and the reinforcing ribs extend a distance away from the opening on the guide tube.

[0006] The beneficial effects of this utility model are as follows: Compared with the prior art, the T-beam pre-tensioned steel strand feeding guide and positioning device of this utility model is connected to the inner hole of the anchor plate seat set at both ends of the corrugated pipe prefabricated channel. This can greatly improve the guidance of the steel strand into the corrugated pipe prefabricated channel, improve the efficiency of feeding the steel strand, and avoid the steel strand from scraping and damaging the opening of the anchor plate seat. The guide tube adopts a spring-shaped structure with a closing end, which can quickly connect to the hole of the anchor plate seat. The upper locking rod is used to grab the grouting port on the upper side of the anchor plate seat for stability, ensuring the stability and reliability of the guide and positioning device. This ensures that the steel strand is guided and positioned in advance during the process of feeding into the prefabricated channel. The closing structure formed by opening multiple V-shaped notches is enlarged, and under certain circumstances, this structure forms a cantilever, which can also play an elastic buffering role for the steel strand in contact with its inner end, avoiding damage to the steel strand. Attached Figure Description

[0007] Figure 1 This is a schematic diagram of the structure of the wire feeding device for the pre-tensioned steel strands of T-beams; Figure 2 Schematic diagram of the installation location of the guide and positioning device for the pre-tensioned steel strand of the T-beam; Figure 3 A schematic diagram of the installation location for the cutting equipment; Figure 4 This is a schematic diagram of the end face structure of the guide section of the guide tube. Detailed Implementation

[0008] The utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0009] Example 1: As Figure 1-2As shown in Figure 4, in order to quickly connect the steel strand to the corrugated pipe prefabricated duct of the T-beam, the discharge port 102 is equipped with a T-beam pre-tensioned steel strand feeding guide and positioning device 14 coaxial with it. The T-beam pre-tensioned steel strand feeding guide and positioning device 14 is connected to the inner hole of the anchor plate seat 16 set at both ends of the corrugated pipe prefabricated duct 15, which can greatly improve the guidance of the steel strand into the corrugated pipe prefabricated duct, improve the efficiency of steel strand feeding, and avoid the steel strand from being scratched and damaged by the opening of the anchor plate seat. Specifically, the T-beam pre-tensioned steel strand The wire feeding and guiding positioning device 14 includes a guide tube 1401. The outer end of the guide tube 1401 extends out of the support frame 4 to avoid interference between the support frame and the T-beam during the process of the guide tube connecting to the anchor plate seat. An opening 1402 is provided on the upper side of the guide tube 1401 near the angle grinder. After the angle grinder rotates, its cutting blade can cut the pre-stretched steel strand 17 towards the opening 1402. A tapered guide part 1403 is provided at the front end of the guide tube 1401. The guide part 1403 is a circumferentially open V-shaped guide part of the guide tube. The bullet-shaped structure is formed by the convergence of the U-shaped notch. A locking rod 1404 is provided on the upper side of the guide tube 1401. One end of the locking rod 1404 is bent to form a bent part 1405, which can be inserted into the grouting hole 1601 on the upper side of the anchor plate seat 16. The other end of the locking rod 1404 is provided with a threaded part. One end of the threaded part passes through the vertical strip hole 19 provided on the connecting plate 18 and is locked by double nuts 20 clamping the connecting plate 18. The connecting plate 18 is fixedly connected to the guide tube 1401. The front end features a constricted bullet structure that can quickly engage with the hole in the anchor plate seat. A locking rod on the upper side secures the grouting port on the upper side of the anchor plate seat, ensuring the stability and reliability of the guiding and positioning device. This, in turn, ensures early guiding and positioning during the feeding of the steel strand into the precast duct. The constricted structure, formed by multiple V-shaped notches, is enlarged and, under certain conditions, forms a cantilever, providing elastic cushioning for the steel strand in contact with its inner end, preventing damage.

[0010] To reinforce the guide tube with the opening, reinforcing ribs 1406 are provided at the bottom and sides of the guide tube 1401 along the length of the opening. The reinforcing ribs 1406 extend a distance away from the guide tube 1401. By reinforcing the ribs, the rigidity and strength of the opening, which is a weak link, can be improved, thereby improving safety and reliability.

[0011] Example 2: Figure 1-4As shown, the device for feeding pre-stretched steel strands for T-beams includes a main body 1. The four corners of the main body 1 are suspended from hooks of an electric hoist 3 via chains 2. The electric hoist 3 is attached to a support frame 4, and casters 5 are installed at the bottom of the support frame 4. The main body 1 has an inlet pipe 101 and an outlet 102. A cutting device 6 is installed on one side of the outlet 102. The electric hoist stably suspends the main body of the pre-stretched steel strand feeding device. The height of the main body is adjusted to align the outlet with the opening of the precast channel. The casters are then used to move the device, feeding the steel strands into the precast channel. The device is then activated to feed the steel strands into the precast channel. The wire is fed into the precast T-beam channel and stops when it reaches the set length (extending beyond the other end of the precast T-beam channel). The section of steel strand is then cut using a cutting device, and the next steel strand is threaded through. After all the steel strands in one precast channel are threaded through, the main body of the T-beam precast steel strand feeding device and the casters are raised and lowered to thread the steel strands into the next precast channel. This method can quickly feed the precast steel strands into the T-beam, saving time and effort. The cutting device is placed on one side for cutting, improving cutting efficiency. The height is adjustable, which can quickly match the corresponding height of the steel strands with the precast channel, greatly improving feeding efficiency, saving time and effort, and making docking convenient. It can also be adapted to different application scenarios at different heights, reducing equipment costs. The cutting device is easy to pick up and put away.

[0012] For ease of cutting, the cutting device 6 uses an angle grinder. An angle steel plate 7 is fixedly connected to one side of the angle grinder's cutting blade 601. The bottom plate and vertical plate of the angle steel plate 7 face the bottom and left side of the angle grinder, respectively. The angle steel plate 7 is hinged to a hinge seat 9 via two symmetrical connecting rods 8. The hinge seat 9 is fixedly connected to a cantilever plate 10. One end of the cantilever plate 10 is fixedly connected to the discharge port 102. A limit seat 11 is provided on the side of the hinge seat 9 away from the discharge port 102. After the connecting rods 8 abut against the limit seat 11, they face away from the discharge port. The opening 102 is tilted on one side and also includes a rubber band 12. One end of the rubber band 12 is fixedly connected to the handle 602 of the angle grinder, and the other end can be hooked to the hook 13 set on the cantilever plate 10. The angle grinder can be quickly picked up and put down using a hinged connection with a limit seat. It is easy to operate and can directly cut steel strands after rotation. The cutting is fast and stable. The rubber band is used to fix the angle grinder when it is not in use, which improves the placement stability of the angle grinder and avoids damage to the steel strands or cutting blades caused by flipping.

[0013] To quickly connect the steel strand to the precast corrugated pipe duct of the T-beam, a T-beam pre-tensioned steel strand feeding guide and positioning device 14, coaxial with the discharge port 102, is installed. The T-beam pre-tensioned steel strand feeding guide and positioning device 14 is connected to the inner holes of the anchor seats 16 located at both ends of the precast corrugated pipe duct 15. This significantly improves the guiding performance of the steel strand entering the precast corrugated pipe duct, increases the efficiency of steel strand feeding, and prevents scratching damage between the steel strand and the opening of the anchor seats. Specifically, the T-beam pre-tensioned steel strand feeding... The guiding and positioning device 14 includes a guide tube 1401, the outer end of which extends out of the support frame 4 to avoid interference between the support frame and the T-beam during the process of connecting the guide tube to the anchor plate seat. An opening 1402 is provided on the upper side of the guide tube 1401 near the angle grinder. After the angle grinder rotates, its cutting blade can cut the pre-stretched steel strand 17 towards the opening 1402. A tapered guide part 1403 is provided at the front end of the guide tube 1401. The guide part 1403 is a V-shaped opening around the circumference of the guide tube. The bullet-shaped structure formed by the notch and subsequent convergence has a locking rod 1404 on the upper side of the guide tube 1401. One end of the locking rod 1404 is bent to form a bent portion 1405, which can be inserted into the grouting hole 1601 on the upper side of the anchor plate seat 16. The other end of the locking rod 1404 has a threaded portion. One end of the threaded portion passes through the vertical strip hole 19 on the connecting plate 18 and is then locked by double nuts 20 clamping the connecting plate 18. The connecting plate 18 is fixedly connected to the guide tube 1401. The end-mounted constricting head structure can quickly align with the hole in the anchor plate seat, and the upper locking rod grips the grouting port on the upper side of the anchor plate seat for stability, ensuring the stability and reliability of the guiding and positioning device. This ensures early guiding and positioning during the feeding of the steel strand into the prefabricated duct. The constricting structure formed by multiple V-shaped notches is enlarged, and under certain circumstances, this structure forms a cantilever, which can also provide elastic buffering for the steel strand in contact with its inner end, preventing damage to the steel strand.

[0014] To reinforce the guide tube with the opening, reinforcing ribs 1406 are provided at the bottom and sides of the guide tube 1401 along the length of the opening. The reinforcing ribs 1406 extend a distance away from the guide tube 1401. By reinforcing the ribs, the rigidity and strength of the opening, which is a weak link, can be improved, thereby improving safety and reliability.

[0015] To improve the support rigidity and stability of the cantilever plate, a reinforcing rib plate 21 is fixedly connected to the bottom of the cantilever plate 10. By setting the reinforcing rib plate to be connected to the U-shaped groove (opening) at the discharge port, the support stability of the cantilever plate can be greatly improved.

[0016] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A T-beam pre-tensioned steel strand feeding and guiding positioning device, characterized in that, The system includes a guide tube with an opening on the upper side near the angle grinder. When the angle grinder rotates, its cutting blade can cut the pre-stretched steel strand towards the opening. The front end of the guide tube has a guide section, which is a bullet-shaped structure formed by opening a V-shaped notch around the guide tube and then closing it. A locking rod is provided on the upper side of the guide tube. One end of the locking rod is bent to form a bend that can be inserted into the grouting hole on the upper side of the anchor plate. The other end of the locking rod has a threaded part. One end of the threaded part passes through the vertical strip hole provided on the connecting plate and is locked by double nuts clamping the connecting plate. The connecting plate is fixedly connected to the guide tube.

2. The T-beam pre-tensioned steel strand feeding and positioning device according to claim 1, characterized in that, The bottom and sides of the guide tube at the opening section are equipped with reinforcing ribs along its length, and the reinforcing ribs extend a distance away from the opening on the guide tube.

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