Prefabricated beam primary grouting and end sealing forming device and method

Abstract

The present invention discloses a device and method for one-time grouting and sealing of the end of a precast beam, which relates to the technical field of sealing the end of a precast beam. It includes a T-shaped precast beam. A grouting hole is provided on the side wall of the T-shaped precast beam, and a steel bar passing hole is provided on the side wall of the T-shaped precast beam. The steel bar passing hole is arranged at the lower end of the grouting hole, and the inner diameter of the gasket groove is larger than the inner diameter of the steel bar passing hole. Two fixing screw holes are provided on the side wall of the T-shaped precast beam, and the two fixing screw holes are arranged on both sides of the gasket groove. A plugging anchor head assembly is arranged inside the steel bar passing hole, and a sealing and leak-proof assembly is arranged inside the plugging anchor head assembly. The device and method for one-time grouting and sealing of the end of a precast beam disclosed by the present invention, after the steel bars are passed through, the device is fixedly clamped on the wall surface of the T-shaped precast beam, and the grouting operation is directly carried out without waiting, achieving the technical effect of improving the construction efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of precast beam end sealing and anchoring, and particularly relates to a device and method for forming a precast beam by one-time grouting and end sealing. Background Art

[0002] A precast beam is a concrete beam component that is formed by formwork erection, mixing, and pouring at a concrete component factory or on-site construction site. After the strength reaches the design requirements, it is transported to the installation location for installation. A precast beam is a part of prefabricated components, and prefabricated components are a concrete structure mainly composed of precast components connected by assembly. The precast reinforced concrete structure is conducive to the development of building industrialization, improves production efficiency, saves energy, saves the working area on the construction site, and is conducive to improving and ensuring the quality of construction projects.

[0003] During the manufacturing process of precast beams, end sealing and forming are required. When using the existing end sealing method for T-shaped precast beams, since it takes two days for the high-strength mortar to completely solidify, that is, it is necessary to wait for one or two days before grouting can be carried out, which will cause delays in the construction period. Summary of the Invention

[0004] The present invention discloses a device and method for forming a precast beam by one-time grouting and end sealing, aiming to solve the technical problem that it takes two days for the high-strength mortar to completely solidify, and it is necessary to wait for one or two days before grouting can be carried out, which will cause delays in the construction period.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A device for forming a precast beam by one-time grouting and end sealing includes a T-shaped precast beam. A grouting hole is provided on the side wall of the T-shaped precast beam, and a steel bar threading hole is provided on the side wall of the T-shaped precast beam. The steel bar threading hole is arranged at the lower end of the grouting hole. A sealing gasket groove is provided on the side wall of the T-shaped precast beam. The sealing gasket groove is concentric with the steel bar threading hole, and the inner diameter of the sealing gasket groove is larger than the inner diameter of the steel bar threading hole. Two fixing screw holes are provided on the side wall of the T-shaped precast beam, and the two fixing screw holes are arranged on both sides of the sealing gasket groove. A plugging anchor head assembly is arranged inside the steel bar threading hole, and a sealing and leak-proof assembly is arranged inside the plugging anchor head assembly.

[0007] By providing a T-shaped precast beam, a grouting hole, a steel bar threading hole, fixing screw holes, a plugging anchor head assembly, and a sealing and leak-proof assembly, the plugging anchor head assembly plugs the steel bar threading hole, and the sealing and leak-proof assembly keeps the steel bar threading hole and the plugging anchor head assembly highly sealed, avoiding mortar leakage during the grouting operation. At this time, the grouting pump head is inserted into the grouting hole, and the grouting operation can be carried out without waiting, improving the construction efficiency. Since the structure of the device is regular, the finally formed end sealing port is regular and beautiful.

[0008] In a preferred embodiment, the plugging anchor head assembly includes a steel bar threading sleeve. The diameter of the steel bar threading sleeve is smaller than the diameter of the steel bar threading hole, and the steel bar threading sleeve is inserted into the interior of the steel bar threading hole. A sealing cover plate is fixedly connected to the outer wall of the steel bar threading sleeve. The outer wall of the sealing cover plate fits against the outer wall of the T-shaped precast beam, and the diameter of the sealing cover plate is larger than the inner diameter of the sealing gasket groove; a anchor head tube body is fixedly connected to the outer wall of the sealing cover plate. An anchor head cover body is arranged outside the anchor head tube body, and the outer wall of the anchor head tube body slides along the inner wall of the anchor head cover body. An adjusting screw hole is formed in the outer wall of the anchor head cover body, and a limiting threaded pressure rod is threadedly connected to the interior of the adjusting screw hole. The outer wall of the limiting threaded pressure rod abuts against the outer wall of the anchor head tube body; two connecting screw holes are formed in the outer wall of the sealing cover plate, and a fixing screw is threadedly connected to the interior of the connecting screw holes. The two connecting screw holes are arranged corresponding to the fixing screw holes, and the fixing screw passes through the connecting screw hole and is threadedly connected to the interior of the fixing screw hole; a rotating top cover is fixedly connected to the top of the fixing screw. A top cover sealing gasket is arranged at the bottom of the rotating top cover. A limiting pressing cover is arranged at the top of the anchor head cover body. The bottom of the top cover sealing gasket is in contact with the top surface of the limiting pressing cover. Two guiding holes corresponding to the fixing screws are formed in the interior of the limiting pressing cover, and the fixing screws are slidably connected in the guiding holes.

[0009] By providing the plugging anchor head assembly, before the grouting operation, the steel bar threading sleeve is inserted into the interior of the steel bar threading hole, and the rotating top cover is screwed. The bottom of the fixing screw is screwed and fixed in the interior of the fixing screw hole. When the rotating top cover cannot be rotated, the entire plugging anchor head assembly is fixed on the T-shaped precast beam. Then, the grouting pump head is inserted into the grouting hole through the sealing cover plate, and mortar can be injected into the T-shaped precast beam. It is not necessary to wait for the plugging anchor head to be completely formed before directly performing the grouting operation, improving the construction efficiency.

[0010] In a preferred embodiment, the sealing and leak-proof component includes a lower expansion sealing airbag. The outer wall of the inner ring of the lower expansion sealing airbag is fixedly connected to the outer wall of the steel bar threading sleeve, and an air pipe is fixedly connected to the outer wall of the lower expansion sealing airbag. The top of the air pipe is fixedly connected to an upper expansion sealing airbag, and the outer wall of the inner ring of the upper expansion sealing airbag is fixedly connected to the outer wall of the steel bar threading sleeve; a grading sealing ring group is arranged inside the sealing cover plate. The grading sealing ring group is fixedly connected by a plurality of sealing rings. The diameters of the plurality of sealing rings decrease sequentially from top to bottom. The inner diameter of the lowermost sealing ring is greater than the outer diameter of the steel bar threading sleeve. The outer walls of the plurality of sealing rings are all abutted against the inner wall of the steel bar threading hole. The top of the grading sealing ring group is fixedly connected with a plurality of limiting springs distributed in a circumferential array. The top of the limiting spring is fixedly connected to the outer wall of the sealing cover plate; a limiting connection rod is arranged on the surface of the grading sealing ring group. The limiting connection rod is in contact with the outer wall of a sealing ring. One end of the limiting connection rod away from the grading sealing ring group is fixedly connected with an adjusting pull rod. An outer sealing gasket is arranged on the surface of the adjusting pull rod. The outer sealing gasket and the outer wall of the sealing cover plate are both provided with communicating moving holes. The adjusting pull rod slides inside the sealing cover plate and the air pipe through the moving holes. The outer wall of the outer sealing gasket is fixedly connected to the top wall of the sealing cover plate, and the outer sealing gasket is fitted with the sealing gasket groove; an adjusting opening is arranged on the outer wall of the adjusting pull rod, and two symmetrical arc-shaped limiting plates are arranged inside the adjusting opening. A compression spring is fixedly connected to the outer walls of the two arc-shaped limiting plates close to each other. Limiting pressing blocks are fixedly connected to the outer walls of the two arc-shaped limiting plates away from each other. A guiding hole communicating with the adjusting opening is arranged on the outer wall of the adjusting pull rod. The limiting pressing block passes through the guiding hole and abuts against the hole wall of the moving hole. An adjusting pressing plate is fixedly connected to the outer wall of the arc-shaped limiting plate. The adjusting pressing plate is arranged outside the adjusting pull rod.

[0011] By providing the sealing and leak-proof component, during the process of fixing the plugging anchor head component on the outer wall surface of the T-shaped precast beam, both the lower expansion sealing airbag and the upper expansion sealing airbag are in an expanded state and tightly fit against the inside of the steel bar threading hole, with a better sealing effect. The outer wall surface of the outer sealing gasket abuts against the wall surface of the sealing gasket groove to form a further seal. The sealing rings on the plurality of grading sealing ring groups sequentially enter the steel bar threading hole and abut against its inner wall to form a further seal. The setting of the multi-stage sealing structure avoids mortar leakage during the grouting operation, thereby reducing the waste of mortar, shortening the construction time, and improving the construction efficiency.

[0012] The method for forming the first-stage grouting and sealing of the precast beam uses the above-mentioned device for forming the first-stage grouting and sealing of the precast beam, and includes the following steps:

[0013] Step 1: After the construction of the beam body is completed, two precast openings are reserved and distributed up and down. First, steel bar threading is completed in the two precast openings, and then the plugging anchor head component is fixedly clamped on the wall surface of the T-shaped precast beam;

[0014] Step 2: At this time, the steel bar threading sleeve is inserted into the grouting hole, and the sealing and leakage prevention assembly is used to form a seal between the T-shaped precast beam and the plugging anchor head assembly;

[0015] Step 3: Use a high-pressure rubber hose to make a circular connection at the ends of the two prefabricated openings;

[0016] Step 4: Move the intelligent grouting trolley to the prefabricated opening (on the side opposite to the surface where the high-pressure rubber hose in Step 3 is located), connect the high-pressure rubber hose outlet on the intelligent grouting trolley to the lower prefabricated opening, and connect the high-pressure rubber hose return port on the intelligent grouting trolley to the upper prefabricated opening. Then start the main control computer to perform the large-loop grouting operation.

[0017] As can be seen from the above, for the precast beam one-time grouting and sealing and anchoring forming device and method provided by the present invention, after the steel bar threading is completed, the device is fixedly clamped on the wall surface of the T-shaped precast beam, and the grouting operation is directly carried out without waiting, achieving the technical effect of improving the construction efficiency. Brief Description of the Drawings

[0018] Figure 1 It is the overall structural schematic diagram of the precast beam one-time grouting and sealing and anchoring forming device proposed by the present invention;

[0019] Figure 2 It is the structural sectional view of the plugging anchor head assembly in the precast beam one-time grouting and sealing and anchoring forming device proposed by the present invention;

[0020] Figure 3 It is the structural schematic diagram of the plugging anchor head assembly in the precast beam one-time grouting and sealing and anchoring forming device proposed by the present invention;

[0021] Figure 4 It is the side structural sectional view of the sealing cover plate in the precast beam one-time grouting and sealing and anchoring forming device proposed by the present invention;

[0022] Figure 5 It is the structural schematic diagram of the sealing and leakage prevention assembly in the precast beam one-time grouting and sealing and anchoring forming device proposed by the present invention;

[0023] Figure 6 It is the side view of the structure of the grading sealing ring group in the precast beam one-time grouting and sealing and anchoring forming device proposed by the present invention;

[0024] Figure 7 It is Figure 6 The enlarged view of the structure at A in

[0025] Figure 8 It is the structural schematic diagram of the large-loop intelligent grouting system of the precast beam one-time grouting and sealing and anchoring forming method proposed by the present invention.

[0026] In the figure: 1. T-shaped precast beam; 2. Grouting hole; 3. Steel bar threading hole; 4. Gasket groove; 5. Fixed screw hole; 6. Plugging anchor head assembly; 601. Steel bar threading sleeve; 602. Sealing cover plate; 603. Anchor head pipe body; 604. Anchor head cover body; 605. Limit threaded pressure rod; 606. Fixed screw; 607. Rotating top cover; 608. Top cover gasket; 609. Limit gland; 7. Sealing and leak-proof assembly; 701. Lower expansion sealing airbag; 702. Air pipe; 703. Upper expansion sealing airbag; 704. Graded sealing ring group; 705. Limit spring; 706. Limit connecting rod; 707. Adjusting pull rod; 708. Arc-shaped limit plate; 709. Compression spring; 710. Limit pressing block; 711. Adjusting pressing plate; 712. Outer sealing washer. Detailed implementation manners

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0028] The precast beam one-time grouting and sealing anchor forming device and method disclosed by the present invention are mainly applied to the scenario where the complete solidification time of high-strength mortar is long, which will cause delays in the construction period.

[0029] Referring to Figure 1 and Figure 2 , the precast beam one-time grouting and sealing anchor forming device includes a T-shaped precast beam 1. A grouting hole 2 is opened on the side wall of the T-shaped precast beam 1, and a steel bar threading hole 3 is opened on the side wall of the T-shaped precast beam 1. The steel bar threading hole 3 is arranged at the lower end of the grouting hole 2. A gasket groove 4 is opened on the side wall of the T-shaped precast beam 1. The gasket groove 4 is concentric with the steel bar threading hole 3, and the inner diameter of the gasket groove 4 is larger than the inner diameter of the steel bar threading hole 3. Two fixed screw holes 5 are opened on the side wall of the T-shaped precast beam 1. The two fixed screw holes 5 are arranged on both sides of the gasket groove 4. A plugging anchor head assembly 6 is arranged inside the steel bar threading hole 3, and a sealing and leak-proof assembly 7 is arranged inside the plugging anchor head assembly 6.

[0030] Specifically, before the grouting operation, the plugging anchor head assembly 6 is inserted into the steel bar threading hole 3 and fixed. After being fixed, the plugging anchor head assembly 6 plugs the steel bar threading hole 3. The sealing and leak-proof assembly 7 is used to keep the steel bar threading hole 3 and the plugging anchor head assembly 6 highly sealed, avoiding the leakage of mortar during the grouting operation. At this time, the grouting pump head is inserted into the grouting hole 2, and the grouting operation can be carried out without waiting, improving the construction efficiency. Since the structure of the device is regular, the finally formed sealing anchor port is regular and beautiful.

[0031] Referring to Figure 2 , Figure 3 and Figure 4, in a preferred embodiment, the plugging anchor head assembly 6 includes a steel bar threading sleeve 601. The diameter of the steel bar threading sleeve 601 is smaller than the diameter of the steel bar threading hole 3, and the steel bar threading sleeve 601 is inserted into the interior of the steel bar threading hole 3. The outer wall of the steel bar threading sleeve 601 is fixedly connected with a sealing cover plate 602. The outer wall of the sealing cover plate 602 fits against the outer wall of the T-shaped precast beam 1, and the diameter of the sealing cover plate 602 is larger than the inner diameter of the sealing gasket groove 4; the outer wall of the sealing cover plate 602 is fixedly connected with an anchor head tube body 603. An anchor head cover body 604 is arranged outside the anchor head tube body 603, and the outer wall of the anchor head tube body 603 slides along the inner wall of the anchor head cover body 604. An adjusting screw hole is formed in the outer wall of the anchor head cover body 604, and a limiting threaded pressure rod 605 is threadedly connected inside the adjusting screw hole. The outer wall of the limiting threaded pressure rod 605 abuts against the outer wall of the anchor head tube body 603; two connecting screw holes are formed in the outer wall of the sealing cover plate 602, and a fixing screw rod 606 is threadedly connected inside the connecting screw holes, and the two connecting screw holes are arranged corresponding to the fixing screw hole 5. The fixing screw rod 606 passes through the connecting screw hole and is threadedly connected inside the fixing screw hole 5; the top of the fixing screw rod 606 is fixedly connected with a rotating top cover 607. A top cover sealing gasket 608 is arranged at the bottom of the rotating top cover 607. A limiting pressing cover 609 is arranged at the top of the anchor head cover body 604. The bottom of the top cover sealing gasket 608 is in contact with the top surface of the limiting pressing cover 609. Two guiding holes corresponding to the fixing screw rod 606 are formed inside the limiting pressing cover 609, and the fixing screw rod 606 is slidably connected inside the guiding holes.

[0032] Specifically, before the grouting operation, insert the anchor head tube body 603 into the anchor head cover body 604, and then screw the limiting threaded pressure rod 605 to make it abut against the outer wall of the anchor head tube body 603, so that the anchor head tube body 603 and the anchor head cover body 604 are fixed together. Then screw the rotating top cover 607 to screw the bottom of the fixing screw rod 606 fixedly in the sealing cover plate 602. At this time, the assembly of the entire anchor plugging forming device is completed. Then insert the steel bar threading sleeve 601 into the interior of the steel bar threading hole 3. When the steel bar threading sleeve 601 is completely inserted into the steel bar threading hole 3, the sealing cover plate 602 fits against the outer wall surface of the T-shaped precast beam 1. At this time, screw the rotating top cover 607 to make the fixing screw rod 606 rotate. As the fixing screw rod 606 rotates, the bottom of the fixing screw rod 606 is screwed and fixed inside the fixing screw hole 5. When the rotating top cover 607 cannot rotate, the entire plugging anchor head assembly 6 is fixed on the T-shaped precast beam 1. Then insert the grouting pump head through the sealing cover plate 602 into the interior of the grouting hole 2, and mortar can be injected into the T-shaped precast beam 1. The grouting operation can be directly carried out without waiting for the plugging anchor head to be completely formed, improving the construction efficiency.

[0033] Refer to Figure 5 、 Figure 6 and Figure 7, in a preferred embodiment, the sealing and leak-proof assembly 7 includes a lower expansion sealing airbag 701. The outer wall of the inner ring of the lower expansion sealing airbag 701 is fixedly connected to the outer wall of the steel bar threading sleeve 601, and an air pipe 702 is fixedly connected to the outer wall of the lower expansion sealing airbag 701. The top of the air pipe 702 is fixedly connected to an upper expansion sealing airbag 703, and the outer wall of the inner ring of the upper expansion sealing airbag 703 is fixedly connected to the outer wall of the steel bar threading sleeve 601; a hierarchical sealing ring group 704 is arranged inside the sealing cover plate 602. The hierarchical sealing ring group 704 is fixedly connected by a plurality of sealing rings. The diameters of the plurality of sealing rings decrease sequentially from top to bottom. The inner diameter of the lowermost sealing ring is greater than the outer diameter of the steel bar threading sleeve 601. The outer walls of the plurality of sealing rings are all in contact with the inner wall of the steel bar threading hole 3. A plurality of limiting springs 705 distributed in a circumferential array are fixedly connected to the top of the hierarchical sealing ring group 704. The top of the limiting springs 705 is fixedly connected to the outer wall of the sealing cover plate 602; a limiting connection rod 706 is arranged on the surface of the hierarchical sealing ring group 704. The limiting connection rod 706 is in contact with the outer wall of one sealing ring. One end of the limiting connection rod 706 away from the hierarchical sealing ring group 704 is fixedly connected to an adjusting pull rod 707. An outer sealing gasket 712 is arranged on the surface of the adjusting pull rod 707. Communication activity holes are provided in both the outer sealing gasket 712 and the outer wall of the sealing cover plate 602. The adjusting pull rod 707 slides inside the sealing cover plate 602 and the air pipe 702 through the activity holes. The outer wall of the outer sealing gasket 712 is fixedly connected to the top wall of the sealing cover plate 602, and the outer sealing gasket 712 is fitted with the sealing gasket groove 4; an adjusting opening is provided in the outer wall of the adjusting pull rod 707, and two symmetrical arc-shaped limiting plates 708 are arranged inside the adjusting opening. A compression spring 709 is fixedly connected to the outer walls of the two arc-shaped limiting plates 708 close to each other. Limiting pressure blocks 710 are fixedly connected to the outer walls of the two arc-shaped limiting plates 708 away from each other. A guiding hole communicating with the adjusting opening is provided in the outer wall of the adjusting pull rod 707. The limiting pressure blocks 710 pass through the guiding hole and abut against the hole wall of the activity hole. An adjusting pressing plate 711 is fixedly connected to the outer wall of the arc-shaped limiting plate 708. The adjusting pressing plate 711 is arranged outside the adjusting pull rod 707.

[0034] Specifically, during the process of fixing the plugging anchor head assembly 6 on the outer wall surface of the T-shaped precast beam 1, when the steel bar threading sleeve 601 is inserted into the steel bar threading hole 3, the lower expansion sealing airbag 701 contacts the inner wall of the steel bar threading hole 3. The gas in the lower expansion sealing airbag 701 enters the interior of the upper expansion sealing airbag 703 through the air pipe 702, and the upper expansion sealing airbag 703 is in an expanded state. As the steel bar threading sleeve 601 moves into the steel bar threading hole 3, the upper expansion sealing airbag 703 contacts the inner wall of the steel bar threading hole 3, and the gas inside the upper expansion sealing airbag 703 enters the lower expansion sealing airbag 701 through the air pipe 702. When the steel bar threading sleeve 601 completely enters the steel bar threading hole 3, both the lower expansion sealing airbag 701 and the upper expansion sealing airbag 703 are in an expanded state and tightly fit against the inner wall of the steel bar threading hole 3, resulting in a better sealing effect. At the same time, the outer wall surface of the outer sealing washer 712 abuts against the wall surface of the sealing gasket groove 4 to form a further seal. Then, the arc-shaped limiting plate 708 is squeezed inward, and the arc-shaped limiting plate 708 exerts a pressure on the compression spring 709. After the compression spring 709 contracts, the limiting pressure block 710 does not contact the sealing cover plate 602. At this time, the adjusting pull rod 707 is pulled outward, causing the limiting connection rod 706 to move outward and gradually move away from the grading sealing ring group 704. After the grading sealing ring group 704 is released from the restriction of the limiting connection rod 706, under the elastic action of the limiting spring 705, the grading sealing ring group 704 is squeezed into the interior of the steel bar threading hole 3. Finally, the sealing rings on the multiple grading sealing ring groups 704 sequentially enter the steel bar threading hole 3 and abut against its inner wall to form a further seal. The setting of the multi-stage sealing structure avoids mortar leakage during the grouting operation, thereby reducing the waste of mortar, shortening the construction time, and improving the construction efficiency.

[0035] The method for forming a precast beam with primary grouting and plugging includes the following steps by using the precast beam forming device for primary grouting and plugging as described above:

[0036] Step 1: After the construction of the beam body is completed, two prefabricated openings distributed up and down are reserved. First, the steel bar bundles are inserted into the two prefabricated openings, and then the plugging anchor head assembly 6 is fixedly clamped on the wall surface of the T-shaped prefabricated beam 1 (before the grouting operation, the anchor head pipe body 603 is inserted into the anchor head cover body 604, and then the limiting threaded pressure rod 605 is screwed to prevent it from abutting against the outside of the anchor head pipe body 603, so that the anchor head pipe body 603 and the anchor head cover body 604 are fixed together, and then the top cover 607 is screwed to rotate so that the bottom of the fixing screw 606 is screwed and fixed to the sealing cover plate 602). At this time, the assembly of the entire sealing anchor forming device is completed, and then the steel bar bundle sleeve 601 is inserted into the steel bar bundle hole 3. When the steel bar bundle sleeve 601 is completely inserted into the steel bar bundle hole 3, the sealing cover plate 602 fits with the outer wall surface of the T-shaped precast beam 1. At this time, the top cover 607 is screwed to rotate the fixing screw 606. As the fixing screw 606 rotates, the bottom of the fixing screw 606 is screwed and fixed inside the fixing screw hole 5. When the rotating top cover 607 cannot rotate, the entire sealing anchor head assembly 6 is fixed on the T-shaped precast beam 1);

[0037] Step 2: At this time, the steel bar threading sleeve 601 is inserted into the grouting hole 2, and the sealing and leak-proof component 7 is used to form a seal between the T-shaped precast beam 1 and the plugging anchor head component 6. (During the process of fixing the plugging anchor head component 6 on the outer wall surface of the T-shaped precast beam 1 and inserting the steel bar threading sleeve 601 into the steel bar threading hole 3, the lower expansion sealing airbag 701 contacts the inner wall of the steel bar threading hole 3. The gas in the lower expansion sealing airbag 701 enters the inside of the upper expansion sealing airbag 703 through the air pipe 702, and the upper expansion sealing airbag 703 is in an expanded state. As the steel bar threading sleeve 601 moves into the steel bar threading hole 3, the upper expansion sealing airbag 703 contacts the inner wall of the steel bar threading hole 3, and the gas inside the upper expansion sealing airbag 703 enters the lower expansion sealing airbag 701 through the air pipe 702. When the steel bar threading sleeve 601 completely enters the steel bar threading hole 3, both the lower expansion sealing airbag 701 and the upper expansion sealing airbag 703 are in an expanded state and tightly fit against the inner wall of the steel bar threading hole 3, with a better sealing effect. At the same time, the outer wall surface of the outer sealing washer 712 abuts against the wall surface of the sealing gasket groove 4 to form a further seal. Then, the arc-shaped limiting plate 708 is squeezed inward, and the arc-shaped limiting plate 708 exerts a pressure on the compression spring 709. After the compression spring 709 contracts, the limiting pressure block 710 does not contact the sealing cover plate 602. At this time, the adjusting pull rod 707 is pulled outward, so that the limiting connecting rod 706 moves outward and gradually moves away from the grading sealing ring group 704. After the grading sealing ring group 704 is released from the restriction of the limiting connecting rod 706, under the elastic action of the limiting spring 705, the grading sealing ring group 704 is squeezed into the inside of the steel bar threading hole 3, and finally the sealing rings on the multiple grading sealing ring groups 704 enter the steel bar threading hole 3 in sequence and abut against its inner wall to form a further seal. The setting of the multi-stage sealing structure avoids mortar leakage during the grouting operation, thereby reducing the waste of mortar, shortening the construction time, and improving the construction efficiency.)

[0038] Step 3: Use a high-pressure rubber hose to make a circular connection at the ends of the two prefabricated openings. (After fixing the plugging anchor head component 6 and forming a seal through the sealing and leak-proof component 7, insert the grouting pump head into the inside of the grouting hole 2 through the sealing cover plate 602, and then mortar can be injected into the T-shaped precast beam 1. The grouting operation can be directly carried out without waiting for the plugging anchor head to be completely formed, which improves the construction efficiency.)

[0039] Step 4: Move the intelligent grouting trolley to the prefabricated opening (on the side opposite to the surface where the high-pressure rubber hose is located in Step 3). Connect the slurry outlet of the high-pressure rubber hose on the intelligent grouting trolley to the lower prefabricated opening, and connect the slurry return port of the high-pressure rubber hose on the intelligent grouting trolley to the upper prefabricated opening. Then, start the main control computer to perform the large-circulation grouting operation (using the large-circulation intelligent grouting of precast beams to synchronously fill the anchor sealing device, which not only realizes the one-time forming of grouting and anchor sealing, but also effectively improves the grouting fullness of precast beams and reduces the common quality problem of insufficient grouting at the end during traditional grouting).

[0040] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A prefabricated beam one-step grouting and anchoring forming device, comprising a T-shaped prefabricated beam (1), characterized in that: The side wall of the T-shaped precast beam (1) is provided with a grouting hole (2), and the side wall of the T-shaped precast beam (1) is provided with a steel bar bundle hole (3), the steel bar bundle hole (3) is arranged at the lower end of the grouting hole (2), the side wall of the T-shaped precast beam (1) is provided with a sealing gasket groove (4), the sealing gasket groove (4) is arranged concentrically with the steel bar bundle hole (3), and the inner diameter of the sealing gasket groove (4) is larger than the inner diameter of the steel bar bundle hole (3), the side wall of the T-shaped precast beam (1) is provided with two fixing screw holes (5), the two fixing screw holes (5) are arranged on both sides of the sealing gasket groove (4), the steel bar bundle hole (3) is provided with a sealing anchor head assembly (6), and the sealing anchor head assembly (6) is provided with a sealing and leakproof assembly (7); The plugging anchor head assembly (6) comprises a steel bar bundle insertion sleeve (601), the diameter of the steel bar bundle insertion sleeve (601) is smaller than the diameter of the steel bar bundle insertion hole (3), and the steel bar bundle insertion sleeve (601) is inserted into the interior of the steel bar bundle insertion hole (3), and the outer wall of the steel bar bundle insertion sleeve (601) is fixedly connected to a sealing cover plate (602), the outer wall of the sealing cover plate (602) is in contact with the outer wall of the T-shaped prefabricated beam (1), and the diameter of the sealing cover plate (602) is larger than the inner diameter of the sealing gasket groove (4); Two connecting screw holes are provided on the outer wall of the sealing cover plate (602), the interior of the connecting screw holes being threadedly connected with a fixing screw rod (606), and the two connecting screw holes are arranged corresponding to the fixing screw holes (5), and the fixing screw rod (606) passes through the connecting screw holes and is threadedly connected to the interior of the fixing screw holes (5); A graded sealing ring group (704) is arranged inside the sealing cover plate (602), the graded sealing ring group (704) is formed by a plurality of sealing rings fixedly connected, the diameters of the plurality of sealing rings decrease from top to bottom, the inner diameter of the bottommost sealing ring is larger than the outer diameter of the steel bar bundle insertion sleeve (601), the outer walls of the plurality of sealing rings are all against the inner wall of the steel bar bundle insertion hole (3), a plurality of limit springs (705) distributed in a circumferential array are fixedly connected to the top of the graded sealing ring group (704), and the top of the limit spring (705) is fixedly connected to the outer wall of the sealing cover plate (602); The surface of the graded sealing ring group (704) is provided with a limited connection lever (706), the limited connection lever (706) contacts the outer wall of a sealing ring, and the end of the limited connection lever (706) away from the graded sealing ring group (704) is fixedly connected with an adjustment rod (707), and the surface of the adjustment rod (707) is provided with an outer sealing gasket (712), and the outer wall of the outer sealing gasket (712) and the sealing cover plate (602) are both provided with a movable hole connected to each other, and the adjustment rod (707) slides inside the sealing cover plate (602) and the air pipe (702) through the movable hole, and the outer wall of the outer sealing gasket (712) is fixedly connected to the top wall of the sealing cover plate (602), and the outer sealing gasket (712) fits with the sealing gasket groove (4); The outer wall of the adjusting rod (707) is provided with an adjusting opening, and two symmetrical arc-shaped limit plates (708) are arranged inside the adjusting opening. The outer walls of the two arc-shaped limit plates (708) on the side close to each other are fixedly connected with a compression spring (709), and the outer walls of the two arc-shaped limit plates (708) on the side away from each other are fixedly connected with a limit pressure block (710). The outer wall of the adjusting rod (707) is provided with a guide hole connected to the adjusting opening, and the limit pressure block (710) passes through the guide hole and abuts against the hole wall of the movable hole. The outer wall of the arc-shaped limit plate (708) is fixedly connected with an adjusting pressure plate (711), and the adjusting pressure plate (711) is arranged on the outer side of the adjusting rod (707).

2. The prefabricated beam one-time grouting and anchoring forming device according to claim 1 is characterized in that: The outer wall of the sealing cover plate (602) is fixedly connected to the anchor head tube body (603), the anchor head cover body (604) is arranged outside the anchor head tube body (603), and the outer wall of the anchor head tube body (603) slides along the inner wall of the anchor head cover body (604), an adjustment screw hole is opened on the outer wall of the anchor head cover body (604), and the inner thread of the adjustment screw hole is connected to the limiting threaded pressure rod (605), and the outer wall of the limiting threaded pressure rod (605) is abutted against the outer wall of the anchor head tube body (603).

3. The prefabricated beam one-time grouting and anchoring forming device according to claim 1 is characterized in that: The top of the fixed screw (606) is fixedly connected to a rotating top cover (607), the bottom of the rotating top cover (607) is provided with a top cover sealing gasket (608), the top of the anchor head cover (604) is provided with a limiting pressure cover (609), the bottom of the top cover sealing gasket (608) is in contact with the top surface of the limiting pressure cover (609), and the inside of the limiting pressure cover (609) is provided with two guide holes corresponding to the fixed screw (606), and the fixed screw (606) is slidably connected in the guide holes.

4. The prefabricated beam one-time grouting and anchoring forming device according to claim 3 is characterized in that: The sealing and leak-proof component (7) comprises a lower expansion sealing airbag (701), the inner circle outer wall of the lower expansion sealing airbag (701) is fixedly connected to the outer wall of the steel bar bundle sleeve (601), the outer wall of the lower expansion sealing airbag (701) is fixedly connected to the air pipe (702), the top of the air pipe (702) is fixedly connected to the upper expansion sealing airbag (703), and the inner circle outer wall of the upper expansion sealing airbag (703) is fixedly connected to the outer wall of the steel bar bundle sleeve (601).

5. A method for forming a precast beam by grouting and anchoring at one time, using the precast beam grouting and anchoring device according to any one of claims 1 to 4, characterized in that: The steps include: Step 1: After the construction of the beam body is completed, two prefabricated openings distributed up and down are reserved, and the steel bars are firstly threaded through the two prefabricated openings, and then the plugging anchor head assembly (6) is fixedly mounted on the wall surface of the T-shaped prefabricated beam (1); Step 2: At this time, the steel bar bundle sleeve (601) is inserted into the grouting hole (2), and a sealing and leak-proof component (7) is used to form a seal between the T-shaped prefabricated beam (1) and the plugging anchor head component (6); Step 3: Use high-pressure hoses to make loop connections at the ends of the two prefabricated ports; Step 4. Move the intelligent grouting trolley to the prefabricated port, connect the high-pressure hose outlet on the intelligent grouting trolley with the prefabricated port below, connect the high-pressure hose return port on the intelligent grouting trolley with the prefabricated port above, and then start the main control computer to perform large-cycle grouting operations.

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