Embedded steel bar embedded part and construction method thereof

Abstract

The invention relates to a steel bar embedded part and a construction method thereof.The steel bar embedded part comprises a fixing shell used for sleeving and fixedly connecting a steel bar, an embedded shell used for sleeving and fixing the fixing shell and a plugging head used for penetrating a formwork and connected with the embedded shell, the fixing shell comprises a fixing pipe body, and a plurality of rows of fixing clamping heads are arranged on the outer wall of the fixing pipe body in a circle; each row of fixing chucks comprises a plurality of fixing chucks arranged in the length direction of the fixing pipe body, external anti-loose teeth are arranged on the side walls of the fixing chucks, the pre-embedded shell comprises a pre-embedded pipe body, one end of the pre-embedded pipe body is closed, the other end of the pre-embedded pipe body is open, and internal limiting chucks used for being clamped and locked with the fixing chucks are arranged on the inner wall of the pre-embedded pipe body; the internal limiting clamping head and the fixed clamping head are arranged in a staggered mode, and internal anti-loosening teeth used for being meshed with the external anti-loosening teeth are arranged on the side wall of the internal limiting clamping head. The problems that main structure steel bars and concrete appearance are damaged during steel bar planting, constructional column steel bars deviate, and the steel bar planting drawing strength does not meet the requirement are effectively solved.

Description

Technical Field

[0001] The invention relates to the field of secondary structure reinforcing bar implantation technology, in particular to a reinforcing bar implantation embedded part and a construction method thereof. Background Art

[0002] In recent years, the post-embedded reinforcement method is often used in the construction of tie bars between filler walls and load-bearing walls, columns, beams and slabs. Although this construction method is convenient, it often leads to poor anchoring of the steel bars due to quality problems of anchor glue or grouting materials, and improper drilling, hole cleaning, glue injection or grouting operations, which fails to play the proper tie effect.

[0003] Normally, after the main structure is completed, workers need to locate and drill holes on the end faces of shear walls and the bottom faces of beams and slabs according to the positions on the drawings. It often happens that the steel bars of beams or walls are hit during drilling, causing the hole to be invalid. Workers will continue to drill holes nearby until they can reach the depth required by the specifications, which is usually 100mm-120mm. Secondary drilling is required to avoid steel bars, and the resulting deviations account for about 30% of the total number of holes drilled.

[0004] Secondly, because drilling requires manual operation with an electric hammer, more than 40% of the rebar holes are not vertical, causing them to be skewed after rebar implantation. After drilling, the holes need to be cleaned with a hair dryer and a brush. The dust left by drilling will seriously affect the pull-out strength after rebar implantation. Finally, when implanting the rebar, the rebar implanting glue must be mixed strictly according to the ratio, the steel bars must be fully wrapped with glue and stuffed in, and it is advisable to wait for the overflow to solidify.

[0005] At this point, the rebar planting work is completed. During this process, it involves a series of problems such as damage to the main structure steel bars, concrete appearance, structural column steel bar deviation causing difficulty in mold closing, rebar pulling strength not meeting requirements, drilling dust pollution, noise pollution, occupational diseases, etc. Summary of the invention

[0006] In order to solve the above problems existing in the prior art, the present invention provides a reinforcing bar embedded part and a construction method thereof.

[0007] In a first aspect, the present invention provides a pre-embedded part for reinforcing bars, which adopts the following technical solution: A rebar embedded part comprises a fixed shell for sleeved fixed steel bars, an embedded shell for sleeved fixed fixed shell and a plugging head for penetrating a template and connected to the embedded shell, the fixed shell comprises a fixed tube body, a plurality of rows of fixed clamps are arranged around the outer wall of the fixed tube body, each row of fixed clamps comprises a plurality of fixed clamps arranged along the length direction of the fixed tube body, external anti-loosening teeth are arranged on the side wall of the fixed clamp, the embedded shell comprises an embedded tube body, one end of the embedded tube body is closed and the other end is open, an internal limit clamp for clamping and locking with the fixed clamp is arranged on the inner wall of the embedded tube body, the internal limit clamp is staggered with the fixed clamp, and the side wall of the internal limit clamp is provided with internal anti-loosening teeth for meshing with the external anti-loosening teeth.

[0008] By adopting the above technical scheme, the staff fixes the steel bars in the fixed shell through the rebar embedding glue, and then inserts the fixed shell into the embedded shell and rotates it to fix it. Due to the provision of the tooth structure, the problem of loosening in the later stage is avoided. At the same time, during the concrete pouring stage, the embedded shell is fixed to the formwork by the plugging head, which avoids the displacement of the embedded shell. The use of rebar embedding embedded parts effectively solves a series of problems such as the damage to the main structure steel bars, the appearance of concrete, the difficulty of mold closing caused by the deviation of the structural column steel bars during the rebar embedding process, the rebar pull-out strength not meeting the requirements, the drilling dust pollution, the noise pollution, the occupational disease of the operator, etc. The operation is more time-saving and labor-saving, the structure is more modular, and the work efficiency is more efficient.

[0009] Optionally, one end of the fixed tube body is closed and the other end is open, cross-arranged annular anti-slip ribs and vertical anti-slip ribs are fixedly connected to the inner wall of the fixed tube body, and an exhaust hole is provided at the closed end of the fixed tube body.

[0010] By adopting the above technical solution, the provision of annular anti-slip ribs, vertical anti-slip ribs and exhaust holes effectively removes the air in the fixed pipe body, making the steel bars, plant glue and the fixed pipe body more effectively combined.

[0011] Optionally, an internal vertical reinforcing rib is fixedly connected to the inner wall of the embedded tube body along the length direction of the embedded tube body, and the internal vertical reinforcing rib is connected and fixed to the internal limit clamp.

[0012] By adopting the above technical solution, the internal vertical reinforcing ribs not only improve the compressive deformation resistance of the embedded pipe body, but can also be used to prevent the fixed clamp from excessively displacing and detaching from the internal limit clamp during the rotation of the fixed shell.

[0013] Optionally, an external limit clamp and external vertical reinforcement ribs are fixedly connected to the outer wall of the embedded tube body, and the external vertical reinforcement ribs are extended along the length direction of the embedded tube body.

[0014] By adopting the above technical solution, the external vertical reinforcing ribs and the external limit clamps play a role in improving the compressive deformation resistance of the embedded pipe body and the anchor connection with the concrete.

[0015] Optionally, a fixing ring for fitting with the template is fixedly connected to the open end of the embedded pipe body.

[0016] By adopting the above technical solution, the fixing ring is used to fit tightly with the inner side of the formwork when pouring concrete to prevent concrete slurry from entering.

[0017] Optionally, a sealing ring is fixedly connected to the end of the fixed tube body for fitting and abutting against the fixing ring.

[0018] By adopting the above technical solution, the sealing ring abuts against the fixing ring during the process of inserting the fixing shell into the embedded shell to control the insertion degree of the fixing shell and prompt the staff to rotate the fixing shell.

[0019] Optionally, the sealing head includes a block for abutting the template, a column is provided on one side of the block, an external thread is provided on the column, a handle is provided on the other side of the block, and a threaded groove for connecting the column is provided on the inner wall of the internal limit clamp near the opening end of the embedded pipe body.

[0020] By adopting the above technical solution, it is convenient for the staff to screw the plugging head into the embedded shell by rotating the handle, thereby achieving the effect of firmly fixing the embedded shell on the template.

[0021] In a second aspect, the present invention provides a construction method for a reinforcing bar embedded part, comprising the following steps: S1. Fix the embedded shell on the formwork through the plugging head and pour concrete; S2. Remove the plugging head and dismantle the template; S3, pouring glue into the fixing shell and inserting the steel bar into the fixing shell; S4. Align the fixed shell with the opening of the embedded shell, insert it and rotate it to fix it.

[0022] In summary, the present invention includes at least one of the following beneficial technical effects: It effectively solves a series of problems such as damage to the main structure steel bars, concrete appearance, difficulty in mold closing caused by deviation of structural column steel bars during the rebar planting process, unsatisfactory pull-out strength of rebar planting, dust pollution from drilling, noise pollution, and occupational diseases of operators. The operation is more time-saving and labor-saving, the structure is more modular, and the work efficiency is more efficient. The setting of annular anti-slip ribs, vertical anti-slip ribs and exhaust holes effectively removes the air in the fixed pipe body, making the steel bar, plant glue and fixed pipe body more effectively combined; The internal vertical reinforcing ribs not only improve the compressive deformation resistance of the embedded pipe body, but can also be used to prevent the fixing clamp from excessively displacing and disengaging from the internal limit clamp during the rotation of the fixing shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 12 is a cross-sectional view of the structure of the fixed shell part in an embodiment of the present invention.

[0024] Figure 2 It is a cross-sectional view of the embedded shell part structure in an embodiment of the present invention.

[0025] Figure 3 It is a schematic diagram of the process of disassembling the plugging head in an embodiment of the present invention.

[0026] Figure 4 It is a schematic diagram of the process of installing the fixed shell into the embedded shell in an embodiment of the present invention.

[0027] Figure 5 It is a flow chart of the reinforcing bar planting construction method according to an embodiment of the present invention.

[0028] Explanation of the reference numerals in the accompanying drawings: 1. fixed shell; 10. fixed tube body; 11. fixed clamp; 110. external anti-loosening teeth; 12. sealing ring; 13. annular anti-slip ribs; 14. vertical anti-slip ribs; 2. embedded shell; 20. embedded tube body; 21. internal limit clamp; 210. internal anti-loosening teeth; 211. threaded groove; 22. external limit clamp; 23. internal vertical reinforcing ribs; 24. external vertical reinforcing ribs; 25. fixed ring; 3. sealing head; 30. block; 31. plug; 32. handle. DETAILED DESCRIPTION

[0029] The following is combined with Figure 1 -Attached Figure 5 The present invention is described in further detail.

[0030] The embodiment of the present invention discloses a reinforcing bar embedded part and a construction method thereof. Figure 1 , Figure 2 and Figure 3 A rebar embedded part includes a fixing shell 1 for sleeve fixing the steel bar, an embedded shell 2 for sleeve fixing the fixed shell 1, and a plugging head 3 for temporarily closing the embedded shell 2. All three are made of nylon with a rough surface. The tensile strength of the nylon material is 75MPa-83MPa, which meets the pull-out strength requirements of the rebar.

[0031] Reference Figure 1 and Figure 4 The fixed shell 1 includes a fixed tube body 10, one end of the fixed tube body 10 is closed and the other end is open, and an exhaust hole is provided at the closed end of the fixed tube body 10. Three rows of fixed clamps 11 are evenly fixed around the outer wall of the fixed tube body 10, and each row of fixed clamps 11 includes four fixed clamps 11 evenly arranged along the length direction of the fixed tube body 10. The fixed clamps 11 are provided with external anti-loosening teeth 110 on one side close to the open end of the fixed tube body 10.

[0032] Reference Figure 1 and Figure 4The open end of the fixed tube body 10 is fixed with a sealing ring 12, and the inner wall of the fixed tube body 10 is fixed with multiple annular anti-slip ribs 13 along the length direction of the fixed tube body 10. Three vertical anti-slip ribs 14 are evenly fixed around the inner wall of the fixed tube body 10. The vertical anti-slip ribs 14 extend along the length direction of the fixed tube body 10 and are fixed orthogonally to the annular anti-slip ribs 13. The provision of the annular anti-slip ribs 13, the vertical anti-slip ribs 14 and the exhaust holes effectively removes the air in the fixed tube body 10, so that the steel bar, the plant glue and the fixed tube body 10 are more effectively combined.

[0033] Reference Figure 2 and Figure 3 The embedded shell 2 includes an embedded tube body 20, one end of which is closed and the other end is open, and the inner diameter of the embedded tube body 20 is larger than the outer diameter of the fixed tube body 10. Three rows of internal limit clamps 21 are evenly fixed around the inner wall of the embedded tube body 20, and each row of internal limit clamps 21 includes four internal limit clamps 21 evenly arranged along the length direction of the embedded tube body 20. The positions of the internal limit clamps 21 and the fixed clamps 11 are staggered so as to be mutually locked.

[0034] Reference Figure 2 and Figure 3 The inner limit clamp 21 is provided with an inner anti-loosening tooth 210 on one side close to the closed end of the embedded tube body 20. The inner anti-loosening tooth 210 is used to engage and fix with the outer anti-loosening tooth 110 to prevent the fixed clamp 11 and the inner limit clamp 21 from being separated from each other. An outer limit clamp 22 is fixedly connected to the outer wall of the embedded tube body 20 at a position corresponding to the inner limit clamp 21. The outer limit clamp 22 is used to connect with concrete to improve the anchoring and tensile performance of the embedded shell 2.

[0035] Reference Figure 2 and Figure 3 An internal vertical reinforcing rib 23 is fixedly connected to the same side of each row of internal limit clamps 21 on the inner wall of the embedded tube body 20. The internal vertical reinforcing rib 23 extends along the length direction of the embedded tube body 20. The internal vertical reinforcing rib 23 not only improves the compressive deformation resistance of the embedded tube body 20, but also can be used to prevent the fixed clamp 11 from excessive displacement and separation from the internal limit clamp 21 during the rotation of the fixed shell 1.

[0036] Reference Figure 2 and Figure 3The outer wall of the embedded pipe body 20 is fixedly connected to the position corresponding to the internal vertical reinforcing rib 23, and the external vertical reinforcing rib 24 also plays a role in improving the compressive deformation resistance of the embedded pipe body 20. A fixing ring 25 is fixedly connected to the open end of the embedded pipe body 20. The fixing ring 25 is used to fit tightly with the inner side of the template to prevent concrete slurry from entering during concrete pouring. At the same time, when the fixed shell 1 is inserted into the embedded shell 2, it abuts against the blocking ring 12 to control the insertion degree of the fixed shell 1 and remind the staff when to rotate the fixed shell 1.

[0037] Reference Figure 3 The plugging head 3 includes a stopper 30, which is circular and is used to fit tightly with the outer side of the template to prevent the embedded shell 2 from being offset when pouring concrete and to prevent debris from entering the embedded shell 2. A plug post 31 is fixedly connected to one side of the stopper 30, and an external thread is arranged on the peripheral wall of the plug post 31. Correspondingly, a threaded groove 211 is arranged on the inner wall of the internal limit clamp 21 near the open end of the embedded tube body 20. The plug post 31 is threadedly connected to the internal limit clamp 21 to facilitate fixing the embedded shell 2 on the template. A handle 32 is fixedly connected to the side of the stopper 30 away from the plug post 31. The staff can hold the handle 32 to rotate the plugging head 3, thereby connecting the plugging head 3 to the embedded shell 2.

[0038] Reference Figure 5 The construction method of embedded reinforcement parts can be divided into the following steps: S1. Fix the embedded shell 2 on the template through the plugging head 3 and pour concrete, which specifically includes: in the main construction stage, determine the location of the embedded reinforcement, and drill holes on the template at the location of the embedded reinforcement, pass the plugging head 3 through the template hole and fix it to the embedded shell 2, and pour the embedded shell 2 together with the concrete.

[0039] S2, removing the plugging head 3 and dismantling the formwork, specifically comprising: after the concrete solidifies, unscrewing and removing the plugging head 3, and dismantling the formwork at the location.

[0040] S3, pouring rebar embedding glue into the fixing shell 1 and inserting the steel bars into the fixing shell 1, specifically including: before the secondary structure construction, pouring a certain amount of rebar embedding glue into the fixing shell 1 in the processing area in advance to effectively connect the steel bars and the fixing shell 1.

[0041] S4, aligning the fixing shell 1 with the opening of the embedded shell 2, inserting it and rotating it to fix it, specifically includes: during construction, aligning the fixing shell 1 with the steel bar with the opening of the embedded shell 2 embedded in the wall, inserting it, rotating it in a certain direction to lock it, and then completing the reinforcing bar planting work.

[0042] The use of the above-mentioned embedded parts for rebar planting has effectively solved a series of problems such as damage to the main structure steel bars, concrete appearance, difficulty in mold closing due to deviation of structural column steel bars during rebar planting, rebar pull-out strength not meeting requirements, drilling dust pollution, noise pollution, and occupational diseases of operators. The operation is more time-saving and labor-saving, the structure is more modular, and the work efficiency is higher.

[0043] The above are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A pre-embedded part for reinforcing bars, characterized in that: The invention comprises a fixing shell (1) for sleeve-mounting and fixing steel bars, an embedded shell (2) for sleeve-mounting and fixing the fixing shell (1), and a plugging head (3) for penetrating a template and connected to the embedded shell (2); the fixing shell (1) comprises a fixing tube (10); a plurality of rows of fixing clamps (11) are arranged around the outer wall of the fixing tube (10); each row of fixing clamps (11) comprises a plurality of fixing clamps (11) arranged along the length direction of the fixing tube (10); and a plurality of fixing clamps (11) are arranged on the side wall of the fixing clamps (11). An external anti-loosening tooth (110) is provided. The embedded shell (2) comprises an embedded tube body (20). One end of the embedded tube body (20) is closed and the other end is open. An internal limit clamp (21) for clamping and locking with a fixed clamp (11) is provided on the inner wall of the embedded tube body (20). The internal limit clamp (21) and the fixed clamp (11) are arranged alternately. Internal anti-loosening teeth (210) for meshing with the external anti-loosening tooth (110) are provided on the side wall of the internal limit clamp (21).

2. The embedded reinforcing bar according to claim 1, characterized in that: One end of the fixed tube body (10) is closed and the other end is open; cross-arranged annular anti-slip ribs (13) and vertical anti-slip ribs (14) are fixedly connected to the inner wall of the fixed tube body (10); and the closed end of the fixed tube body (10) is provided with an exhaust hole.

3. The embedded reinforcing bar according to claim 1, characterized in that: An internal vertical reinforcing rib (23) is fixedly connected to the inner wall of the embedded tube body (20) along the length direction of the embedded tube body (20), and the internal vertical reinforcing rib (23) is connected and fixed to the internal limit clamp (21).

4. The embedded reinforcing bar according to claim 3 is characterized in that: An external limit clamp (22) and an external vertical reinforcing rib (24) are fixedly connected to the outer wall of the embedded pipe body (20), and the external vertical reinforcing rib (24) is extended along the length direction of the embedded pipe body (20).

5. The embedded reinforcing bar according to claim 1, characterized in that: The open end of the embedded pipe body (20) is fixedly connected with a fixing ring (25) for fitting with the template.

6. The embedded reinforcing bar according to claim 5, characterized in that: A sealing ring (12) is fixedly connected to the end of the fixed tube body (10) and is used for abutting against the fixed ring (25).

7. The embedded reinforcing bar according to claim 1, characterized in that: The plugging head (3) comprises a stopper (30) for abutting against a template, a plug post (31) is arranged on one side of the stopper (30), an external thread is arranged on the plug post (31), a handle (32) is arranged on the other side of the stopper (30), and a thread groove (211) for connecting the plug post (31) is arranged on the inner wall of the internal limit clamp (21) near the open end of the embedded pipe body (20).

8. A construction method for a reinforcing bar embedded part according to any one of claims 1 to 7, characterized in that: The following steps are involved: S1, fixing the embedded shell (2) on the formwork through the plugging head (3) and pouring concrete; S2, remove the plugging head (3) and dismantle the template; S3, pouring glue into the fixing shell (1) and inserting the steel bar into the fixing shell (1); S4, align the fixing shell (1) with the opening of the embedded shell (2), insert it and rotate it to fix it.

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