Beam formwork suspended anchor bolt pre-embedding fixing device and construction method

Abstract

The invention belongs to the field of pre-burying of suspended anchor bolts, and particularly relates to a beam formwork suspended anchor bolt pre-burying fixing device and a construction method, the beam formwork suspended anchor bolt pre-burying fixing device comprises a beam formwork, a through hole is formed in the beam formwork, a steel square tube is fixedly connected to the outer side of the beam formwork, steel tubes are fixedly connected to the outer side of the steel square tube, and every two steel tubes are arranged as a group. According to the beam formwork suspension anchor bolt pre-embedding fixing device and the construction method, the second sleeve fastener is arranged on the outer side of the opposite-pull screw in a sleeving mode, the containing barrel enters the sliding groove, then the opposite-pull screw is rotated, the opposite-pull screw enters the connecting block, and then the position of the opposite-pull screw is fixed by matching with the steel pipe; therefore, the position of the pressing die anchor bolt is fixed, and the positioning error is controlled within + / -2mm, so that the pressing die anchor bolt and the opposite-pull screw rod are in welded rigid connection, the concrete pouring vibration load is effectively resisted, the axial displacement or radial loosening of the pressing die anchor bolt is avoided, and the anchoring reliability is guaranteed.

Description

Technical Field

[0001] This invention belongs to the field of suspended anchor bolt pre-embedding technology, specifically a suspended anchor bolt pre-embedding fixing device and construction method for beam formwork. Background Technology

[0002] An anchor bolt is an anchoring component used to secure connected parts to a substrate. According to the "Technical Specification for Post-Anchoring of Concrete Structures", anchor bolts are mainly classified into the following categories: Mechanical anchor bolts: These utilize the friction or locking action between the anchor bolt and the anchor hole to form an anchor, and are mainly composed of fasteners made of metal materials (such as screws, nuts, and washers).

[0003] Chemical anchors: consist of a metal thread and anchoring adhesive, which provides anchoring.

[0004] Hybrid anchors: Combining the properties of mechanical and chemical anchoring, they are suitable for applications requiring rapid curing. Anchors are widely used in construction, bridge, and tunnel engineering to ensure structural stability and safety. Traditional suspended anchor bolt pre-embedded installation mainly adopts the reinforcement method of welding positioning steel bars to beam reinforcement or clamping them between beam formwork. The anchor bolts, reinforcing steel bars and formwork are mostly fixed separately, resulting in poor overall coordinated force. The vibration impact force during concrete pouring can easily cause the anchor bolts to float or deviate. In addition, the amount of reinforcing steel bars used for fixing and the amount of manual welding are large, resulting in high material and labor costs.

[0005] Therefore, the present invention provides a pre-embedded fixing device for suspended anchor bolts in beam formwork and a construction method thereof. Summary of the Invention

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by this invention to solve its technical problem is as follows: A beam formwork suspended anchor bolt pre-embedded fixing device, comprising a beam formwork, with through holes inside the beam formwork, a steel square tube fixedly connected to the outside of the beam formwork, and a steel pipe fixedly connected to the outside of the steel square tube. Two steel pipes are arranged as a group, with a total of ten groups. A connecting assembly is provided on the outside of the beam formwork, an anchor bolt assembly is provided on the outside of the connecting assembly, and a positioning assembly is provided on the outside of the anchor bolt assembly. The positioning assembly includes a tie rod slidably connected inside the anchor bolt assembly, a sliding groove inside the tie rod, a first set of fasteners slidably connected to the outside of the tie rod, a second nut threadedly connected to the outside of the tie rod, a second set of fasteners slidably connected to the outside of the tie rod, a placement cylinder fixedly connected inside the second set of fasteners, the outside of the placement cylinder slidably connected to the inside of the sliding groove, a spring fixedly connected inside the placement cylinder, and a blocking disc fixedly connected to the end of the spring.

[0008] Preferably, the connecting component includes a limiting hole opened inside the beam template, and a wooden block is fixedly connected to the top of the steel pipe, with the wooden block covering the limiting hole.

[0009] Preferably, the connecting assembly further includes an installation hole formed inside the timber, a bolt slidably connected inside the installation hole, the outer side of the bolt slidably connected to the inside of the limiting hole, and a torsion nut threadedly connected to the outer side of the bolt.

[0010] Preferably, the anchor bolt assembly includes a composite plywood fixedly connected to the top of the timber, an angle steel fixedly connected to the top of the composite plywood, and a molded anchor bolt slidably connected inside the angle steel.

[0011] Preferably, the anchor bolt assembly further includes a connecting block fixedly connected inside the molded anchor bolt, a washer slidably connected to the outside of the molded anchor bolt, and a first nut threadedly connected to the outside of the molded anchor bolt.

[0012] Preferably, the outer side of the blocking disc is slidably connected to the inside of the placement cylinder, the outer side of the blocking disc is slidably connected to the inside of the slide groove, and the outer side of the pull screw is slidably connected to the inside of the perforation.

[0013] Preferably, the outer side of the torsion nut is slidably connected to the inside of the mounting hole, and the mounting hole is parallel to the limiting hole.

[0014] Preferably, the connecting block is parallel to the through hole, and the inside of the connecting block is slidably connected to the outside of the pull screw.

[0015] The construction method of the pre-embedded fixing device for suspended anchor bolts in beam formwork according to the present invention includes the following specific construction steps: S1: First, fix the steel square tube to the beam formwork, then fix the timber to the beam formwork, and use bolts and nuts to fix the timber to the beam formwork. S2: After the position of the timber is fixed, fix the composite plywood on the timber, then place the angle steel on the composite plywood and make holes, and align the holes. S3: After the hole is drilled, place the molded anchor bolt into the hole and put the washer on the outside of the molded anchor bolt. Then install the first nut to restrict the position of the molded anchor bolt. S4: After the position of the compression anchor bolt is restricted, the second set of fasteners is fitted on the outside of the tie rod, and the placement cylinder is inserted into the groove. Then the tie rod is passed through the through hole and reaches the other side, where the tie rod is inserted into the connecting block. Then the second set of fasteners is fitted on the outside of the tie rod, and the tie rod is rotated as a whole, so that the inside of the second set of fasteners abuts against the outside of the steel pipe. S5: When the second set of fasteners reaches the designated position, the first set of fasteners is sleeved on the outside of the tie rod, and the end of the first set of fasteners abuts against the end of the second set of fasteners. Then, the second nut is rotated to fix the positions of the first set of fasteners and the second set of fasteners, and the position of the tie rod can also be fixed. S6: After the position of the tie rod is determined, rotate the first nut again to fix the position of the mold anchor bolt. Then weld the connecting block to the tie rod to complete the pre-embedding of the mold anchor bolt.

[0016] The beneficial effects of this invention are as follows: 1. The present invention discloses a pre-embedded fixing device and construction method for suspended anchor bolts in beam formwork. A second set of fasteners is fitted onto the outside of the tie rod, and the placement cylinder is inserted into the sliding groove. The tie rod is then rotated and inserted into the connecting block. Next, the second set of fasteners is installed, followed by the first set of fasteners and the second nut. This, along with the steel pipe, fixes the position of the tie rod, thereby fixing the position of the compression molding anchor bolt. This ensures that the positioning error is controlled within ±2 mm, completely solving the technical problem of large spacing deviation in traditional anchor bolts. The rigid welded connection between the compression molding anchor bolt and the tie rod effectively resists the vibration load of concrete pouring, preventing axial displacement or radial loosening of the compression molding anchor bolt and ensuring anchoring reliability.

[0017] 2. The beam formwork suspended anchor bolt pre-embedded fixing device and construction method of the present invention fixes the position of the connecting block by the tie rod, thereby fixing the position of the compression molding anchor bolt. Then, by moving the first nut on the compression molding anchor bolt, the top position of the compression molding anchor bolt is restricted, thereby reducing the possibility of displacement and loosening of the compression molding anchor bolt during use, and thus improving the anchoring reliability.

[0018] 3. The beam formwork suspended anchor bolt pre-embedded fixing device and construction method described in this invention, with the cooperation of bolts and torsion nuts, facilitates the fixing of timber to the beam formwork, and through the connection between composite plywood and timber, a closed-loop force system is formed, thereby effectively resisting the vibration load of concrete pouring, thereby reducing the possibility of displacement of the pressure formwork anchor bolt. Attached Figure Description

[0019] The invention will now be further described with reference to the accompanying drawings.

[0020] Figure 1 This is a schematic diagram of the overall side view structure of the present invention; Figure 2 This is a schematic diagram of the overall bottom view structure in this invention; Figure 3 This is a side view of the anchor bolt assembly in this invention. Figure 4This is a side view of the connecting component in this invention. Figure 5 This is a schematic diagram of the disassembled structure of the connecting component in this invention; Figure 6 This is a side view of the positioning component in this invention. Figure 7 This is an enlarged structural diagram of the positioning component in this invention; Figure 8 This is a schematic diagram of the positioning component from another perspective in this invention; Figure 9 This is a flowchart of the construction method in this invention.

[0021] In the diagram: 1. Beam formwork; 2. Steel square tube; 3. Steel pipe; 4. Limiting hole; 5. Timber; 6. Mounting hole; 7. Bolt; 8. Twist nut; 9. Composite plywood; 10. Angle steel; 11. Press-fit anchor bolt; 12. Connecting block; 13. Washer; 14. First nut; 15. Through hole; 16. Tie rod; 17. Slide groove; 18. First set of fasteners; 19. Second nut; 20. Second set of fasteners; 21. Placement cylinder; 22. Spring; 23. Blocking plate. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0023] Example 1: As Figures 1 to 8 As shown, an embodiment of the present invention provides a beam formwork suspended anchor bolt pre-embedded fixing device, including a beam formwork 1, with a through hole 15 inside the beam formwork 1, a steel square tube 2 fixedly connected to the outside of the beam formwork 1, a steel pipe 3 fixedly connected to the outside of the steel square tube 2, two steel pipes 3 are set as a group, and a total of ten groups are provided. A connecting component is provided on the outside of the beam formwork 1, an anchor bolt component is provided on the outside of the connecting component, and a positioning component is provided on the outside of the anchor bolt component. The positioning component includes a tie rod 16 slidably connected inside the anchor bolt component, a sliding groove 17 is opened inside the tie rod 16, a first set of fasteners 18 is slidably connected to the outside of the tie rod 16, a second nut 19 is threadedly connected to the outside of the tie rod 16, a second set of fasteners 20 is slidably connected to the outside of the tie rod 16, a placement cylinder 21 is fixedly connected inside the second set of fasteners 20, the outside of the placement cylinder 21 is slidably connected to the inside of the sliding groove 17, a spring 22 is fixedly connected inside the placement cylinder 21, and a blocking disc 23 is fixedly connected to the end of the spring 22.

[0024] During operation, the second set of fasteners 20 is fitted onto the outside of the tie rod 16, and the placement cylinder 21 is inserted into the slide groove 17. Then, the tie rod 16 is rotated and inserted into the connecting block 12. Next, the second set of fasteners 20 is installed, followed by the installation of the first set of fasteners 18 and the second nut 19. This, along with the steel pipe 3, fixes the position of the tie rod 16, thereby fixing the position of the compression molding anchor bolt 11. This ensures that the positioning error is controlled within ±2mm, completely solving the technical problem of large spacing deviation in traditional anchor bolts. The rigid welded connection between the compression molding anchor bolt 11 and the tie rod 16 effectively resists the vibration load of concrete pouring, preventing axial displacement or radial loosening of the compression molding anchor bolt 11 and ensuring anchoring reliability.

[0025] like Figures 1 to 8 As shown, the anchor bolt assembly includes a composite plywood 9 fixedly connected to the top of the timber 5, an angle steel 10 fixedly connected to the top of the composite plywood 9, and a molded anchor bolt 11 slidably connected inside the angle steel 10. like Figures 1 to 8 As shown, the anchor bolt assembly also includes a connecting block 12 fixedly connected inside the molded anchor bolt 11, a washer 13 slidably connected to the outside of the molded anchor bolt 11, and a first nut 14 threadedly connected to the outside of the molded anchor bolt 11.

[0026] During operation, the position of the connecting block 12 is fixed by the tie rod 16, thereby fixing the position of the molded anchor bolt 11. Then, the top position of the molded anchor bolt 11 is restricted by the movement of the first nut 14 on the molded anchor bolt 11, thereby reducing the possibility of displacement and loosening of the molded anchor bolt 11 during use, and thus improving the anchoring reliability.

[0027] like Figures 1 to 8 As shown, the outer side of the blocking disc 23 is slidably connected to the inside of the placement cylinder 21, the outer side of the blocking disc 23 is slidably connected to the inside of the slide groove 17, and the outer side of the pull screw 16 is slidably connected to the inside of the perforation 15.

[0028] During operation, the position of the blocking disc 23 and the placement cylinder 21 can be restricted by the slide groove 17, while the perforation 15 facilitates the restriction of the position of the pull screw 16 and also facilitates the installation of the pull screw 16.

[0029] like Figures 1 to 8 As shown, the connecting block 12 is parallel to the through hole 15, and the inside of the connecting block 12 is slidably connected to the outside of the pull screw 16.

[0030] During operation, the parallel arrangement of the connecting block 12 and the through hole 15 facilitates the installation of the pull screw 16.

[0031] Example 2: Figures 1 to 8As shown in the comparative embodiment one, another embodiment of the present invention is as follows: the connecting component includes a limiting hole 4 opened inside the beam formwork 1, and a wooden block 5 is fixedly connected to the top of the steel pipe 3, with the wooden block 5 covering the limiting hole 4. like Figures 1 to 8 As shown, the connecting assembly also includes a mounting hole 6 inside the timber 5, a bolt 7 slidably connected inside the mounting hole 6, a bolt 7 slidably connected to the outside of the limiting hole 4, and a torsion nut 8 threadedly connected to the outside of the bolt 7. During operation, the bolts 7 and the torsion nut 8 work together to fix the timber 5 to the beam formwork 1. The composite plywood 9 is connected to the timber 1 to form a closed-loop force system, which effectively resists the vibration load of concrete pouring and reduces the possibility of displacement of the pressure anchor bolt 11.

[0032] like Figures 1 to 8 As shown, the outer side of the torsion nut 8 is slidably connected to the inside of the mounting hole 6, and the mounting hole 6 is parallel to the limiting hole 4.

[0033] During operation, the torsion nut 8 can be concealed through the mounting hole 6, thereby reducing the chance of the torsion nut 8 being touched later, and thus ensuring the stability of the connection of the timber 5.

[0034] The present invention discloses a construction method for a pre-embedded fixing device for suspended anchor bolts in beam formwork, the specific construction steps of which are as follows: S1: First, fix the steel square tube 2 to the beam formwork 1, then fix the timber 5 to the beam formwork 1, and use the bolts 7 and the torsion nuts 8 to fix the timber 5 to the beam formwork 1. S2: After the position of the timber 5 is fixed, fix the composite plywood 9 on the timber 5, then place the angle steel 10 on the composite plywood 9 and make holes, and align the holes. S3: After the hole is drilled, place the molding anchor 11 into the hole and put the washer 13 on the outside of the molding anchor 11. Then install the first nut 14 to restrict the position of the molding anchor 11. S4: After the position of the compression anchor bolt 11 is restricted, the second set of fasteners 20 is fitted on the outside of the tie rod 16, and the placement cylinder 21 is inserted into the slide groove 17. Then the tie rod 16 is passed through the through hole 15 and reaches the other side, where the tie rod 16 is inserted into the connecting block 12. Then the second set of fasteners 20 is fitted on the outside of the tie rod 16, and the tie rod 16 is rotated as a whole, so that the inner side of the second set of fasteners 20 abuts against the outer side of the steel pipe 3. S5: When the second set of fasteners 20 reaches the designated position, the first set of fasteners 18 is sleeved on the outside of the tie rod 16, and the end of the first set of fasteners 18 abuts against the end of the second set of fasteners 20. Then, the second nut 19 is rotated to fix the position of the first set of fasteners 18 and the second set of fasteners 20, and the position of the tie rod 16 can also be fixed. S6: After the position of the tie rod 16 is determined, rotate the first nut 14 again to fix the position of the compression molding anchor bolt 11 a second time. Then, weld the connecting block 12 to the tie rod 16 to complete the pre-embedding of the compression molding anchor bolt 11. Working principle: By fitting the second set of fasteners 20 onto the outside of the tie rod 16 and inserting the placement cylinder 21 into the slide groove 17, the tie rod 16 is rotated and inserted into the connecting block 12. Then, the second set of fasteners 20 is installed, followed by the first set of fasteners 18 and the second nut 19. This, along with the steel pipe 3, fixes the position of the tie rod 16, thereby fixing the position of the compression molding anchor bolt 11. This ensures that the positioning error is controlled within ±2mm, completely solving the technical problem of large spacing deviation in traditional anchor bolts. The rigid welded connection between the compression molding anchor bolt 11 and the tie rod 16 effectively resists the vibration load of concrete pouring, preventing axial displacement or radial loosening of the compression molding anchor bolt 11 and ensuring anchoring reliability. By fixing the position of the connecting block 12 to the tie rod 16, the position of the molded anchor bolt 11 can be fixed. Then, by moving the first nut 14 on the molded anchor bolt 11, the top position of the molded anchor bolt 11 is restricted, thereby reducing the possibility of displacement and loosening of the molded anchor bolt 11 during use, and thus improving the anchoring reliability.

[0035] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1 Based on the perspective of the observer, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0036] In the description of this invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this invention.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pre-embedded fixing device for suspended anchor bolts of beam formwork, comprising a beam formwork (1), wherein the beam formwork (1) has a through hole (15) inside, a steel square tube (2) is fixedly connected to the outside of the beam formwork (1), and a steel pipe (3) is fixedly connected to the outside of the steel square tube (2), wherein two steel pipes (3) are set as a group, and a total of ten groups are set; Its features are: A connecting component is provided on the outside of the beam template (1), an anchor bolt component is provided on the outside of the connecting component, and a positioning component is provided on the outside of the anchor bolt component; The positioning component includes a tie rod (16) slidably connected inside the anchor bolt component. The tie rod (16) has a groove (17) inside. A first set of fasteners (18) is slidably connected to the outside of the tie rod (16). A second nut (19) is threadedly connected to the outside of the tie rod (16). The pull screw (16) is slidably connected to a second set of fasteners (20), and a placement cylinder (21) is fixedly connected inside the second set of fasteners (20). The outer side of the placement cylinder (21) is slidably connected to the inside of the slide groove (17). A spring (22) is fixedly connected inside the placement cylinder (21), and a blocking disc (23) is fixedly connected to the end of the spring (22).

2. The beam formwork suspended anchor bolt pre-embedded fixing device according to claim 1, characterized in that: The connecting component includes a limiting hole (4) opened inside the beam template (1), and a wooden block (5) is fixedly connected to the top of the steel pipe (3), with the wooden block (5) covering the limiting hole (4).

3. The beam formwork suspended anchor bolt pre-embedded fixing device according to claim 2, characterized in that: The connecting assembly also includes an installation hole (6) opened inside the timber (5), a bolt (7) is slidably connected inside the installation hole (6), the outside of the bolt (7) is slidably connected to the inside of the limiting hole (4), and a torsion nut (8) is threadedly connected to the outside of the bolt (7).

4. The beam formwork suspended anchor bolt pre-embedded fixing device according to claim 3, characterized in that: The anchor assembly includes a composite plywood (9) fixedly connected to the top of the timber (5), an angle steel (10) fixedly connected to the top of the composite plywood (9), and a molded anchor bolt (11) slidably connected inside the angle steel (10).

5. The beam formwork suspended anchor bolt pre-embedded fixing device according to claim 4, characterized in that: The anchor assembly also includes a connecting block (12) fixedly connected inside the molded anchor (11), a gasket (13) is slidably connected to the outside of the molded anchor (11), and a first nut (14) is threadedly connected to the outside of the molded anchor (11).

6. The beam formwork suspended anchor bolt pre-embedded fixing device according to claim 5, characterized in that: The outer side of the blocking disc (23) is slidably connected to the inside of the placement cylinder (21), the outer side of the blocking disc (23) is slidably connected to the inside of the slide groove (17), and the outer side of the pull screw (16) is slidably connected to the inside of the through hole (15).

7. The beam formwork suspended anchor bolt pre-embedded fixing device according to claim 6, characterized in that: The outside of the torsion nut (8) is slidably connected to the inside of the mounting hole (6), and the mounting hole (6) is parallel to the limiting hole (4).

8. The beam formwork suspended anchor bolt pre-embedded fixing device according to claim 7, characterized in that: The connecting block (12) is parallel to the through hole (15), and the inside of the connecting block (12) is slidably connected to the outside of the pull screw (16).

9. A construction method for a pre-embedded fixing device for suspended anchor bolts in beam formwork, the method being used to control the pre-embedded fixing device for suspended anchor bolts in beam formwork as described in claim 8, characterized in that: S1: First, fix the steel square tube (2) to the beam formwork (1), then fix the wooden square (5) to the beam formwork (1), and fix the wooden square (5) to the beam formwork (1) by the cooperation of bolts (7) and twist nuts (8); S2: After the position of the timber (5) is fixed, the composite plywood (9) is fixed on the timber (5), and then the angle steel (10) is placed on the composite plywood (9) and a hole is made, and the holes are aligned. S3: After the hole is opened, the molding anchor (11) is placed in the hole and the gasket (13) is put on the outside of the molding anchor (11). Then the first nut (14) is installed to restrict the position of the molding anchor (11). S4: After the position of the molded anchor bolt (11) is restricted, the second set of fasteners (20) is fitted on the outside of the tie rod (16), and the placement cylinder (21) is put into the slide groove (17). Then the tie rod (16) is passed through the through hole (15) and reaches the other side, where the tie rod (16) is put into the connecting block (12). Then the second set of fasteners (20) is fitted on the outside of the tie rod (16), and the tie rod (16) is rotated as a whole, so that the inside of the second set of fasteners (20) abuts against the outside of the steel pipe (3). S5: When the second set of fasteners (20) reaches the designated position, the first set of fasteners (18) is sleeved on the outside of the tie rod (16), and the end of the first set of fasteners (18) abuts against the end of the second set of fasteners (20). Then the second nut (19) is rotated to fix the position of the first set of fasteners (18) and the second set of fasteners (20), and the position of the tie rod (16) can also be fixed. S6: After the position of the tie rod (16) is determined, the first nut (14) is rotated again to fix the position of the mold anchor bolt (11) for a second time. Then the connecting block (12) is welded to the tie rod (16) to complete the pre-embedding of the mold anchor bolt (11).

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