Formwork of cast-in-place structure joint bar node

Abstract

A formwork of a cast-in-place structure joint bar joint is composed of four formwork bodies made of steel materials, connecting fixing pieces and rubber plugs, one side edge of each formwork body is provided with an open semicircular hole corresponding to the position of a joint bar, and the opposite open semicircular holes of the two formwork bodies form a round hole; the rubber plug is of a rubber body structure which is formed by oppositely combining two elastic semicircular rings and is provided with a central hole, the rubber plug is sleeved on the joint bar, and the opening semicircular hole tightly holds the outer circle of the rubber plug from two sides to prevent slurry leakage; the two inner half hole templates are formed by pasting and welding small lining plates on bottom plates, the bottom plates of the two inner half hole templates are in lap joint with each other, and the lap joint length can be adjusted to adapt to different joint bar intervals; the template is positioned, adjusted and fixed by the pore plate and the plate pin, so that the template is convenient to assemble and disassemble, and the problem of template loss is avoided.

Description

Technical Field

[0001] The present invention relates to a formwork for cast-in-place structure rebar node insertions, particularly the formwork for the rebar insertion locations during cast-in-place structure formwork construction, including the formwork for when the rebar insertions and main reinforcements have been tied. The formwork enables rapid assembly and disassembly of the rebar insertion formwork, allowing for repeated use after disassembly. This solves the problems of cast-in-place structure rebar node insertions being difficult to manufacture, install, and disassemble, time-consuming and labor-intensive, and subject to significant wear and tear after single use. Background Art

[0002] During formwork construction for cast-in-place structures, the fabrication, installation, and removal of formwork for the dowels is often time-consuming and labor-intensive. Dowel formwork requires pre-drilled holes based on the dowel specifications, spacing, and number, and then fitted over the dowels. If the dowels have already been tied to the main reinforcement, the formwork must be assembled on-site using cuttable formwork materials cut to size. Both methods result in poor installation quality and dimensional accuracy, concrete leaks, and difficulty removing the formwork later. This is especially true after pouring, as the rebar is inserted into pre-drilled holes in the formwork, making it difficult to remove. Dismantling can often require damaging the formwork, such as cutting or forcibly prying it apart, resulting in significant material loss. This is especially true when removing the dowel formwork on-site. Both methods limit dowel formwork to single-use, resulting in significant material consumption and time-consuming work for construction personnel. Summary of the Invention

[0003] The invention provides a template for a cast-in-place structure reinforcing bar node, which solves the problems that the reinforcing bar node template is difficult to manufacture, install, dismantle and cannot be reused.

[0004] The above technical purpose of the present invention is achieved through the following technical solutions: a template for a cast-in-place structure rebar node, comprising: a left outer half-hole template, a left inner half-hole template, a right inner half-hole template, a right outer half-hole template, a connecting positioning bar, a plate pin hole plate, a conical plate pin, a square hole plate, a conical wedge, a rubber plug, and a template connecting bolt pair.

[0005] The left outer half-hole template is cut from a steel plate to form a template surface for sealing concrete. There are stiffeners along the circumference of the template surface, which are welded to the template surface and perpendicular to the template surface. The stiffeners increase the rigidity of the template surface to ensure that the left outer half-hole template does not deform when subjected to lateral pressure from concrete. On the right side of the left outer half-hole template surface, there is an open semicircular hole formed by the half-hole on the template surface and the bending of the stiffeners. The diameter, number and position of the open semicircular holes are determined according to the specifications, number and spacing of the dowels, so that the outer ring of the rubber plug is pressed after the template is installed and connected as a whole, and the inner ring of the rubber plug can press the dowels to prevent leakage of slurry at the dowels. Circular holes are arranged at intervals on the stiffener for connecting the templates to each other. The diameter of the circular hole is larger than the outer diameter of the template connection bolt pair, so that the template connection bolt pair can pass through the circular hole smoothly.

[0006] The left inner half-hole template is cut from a steel plate to form a bottom plate for sealing concrete. A small lining plate is welded to the outer surface of the bottom plate on the left side of the bottom plate. The left side, upper side and lower side of the small lining plate are aligned with the left side, upper side and lower side of the bottom plate respectively and welded. The right side of the small lining plate is beveled and welded to the bottom plate surface. A stiffener is welded around the outer surface of the small lining plate, and the stiffener surface is perpendicular to the small lining plate surface. On the left side of the bottom plate and the small lining plate, there are open semicircular holes formed by half a hole in the template surface and the bending of the stiffener. The diameter, number and position of the open semicircular holes are determined according to the specifications, number and spacing of the dowel bars, so that after the template is installed and connected as a whole, the outer ring of the rubber plug is pressed, and the inner ring of the rubber plug can press the dowel bar to prevent leakage of slurry at the dowel bar. Circular holes are arranged at intervals on the stiffener plate for connecting the templates to each other. The diameter of the circular hole is larger than the outer diameter of the template connection bolt pair, so that the template connection bolt pair can pass through the circular hole smoothly.

[0007] The right inner half hole template is cut from a steel plate to form a bottom plate for sealing concrete. A small lining plate is welded to the inner surface of the bottom plate. The right side, upper side and lower side of the small lining plate are aligned with the right side, upper side and lower side of the bottom plate respectively and welded. The left side of the small lining plate is grooved and welded to the bottom plate surface. Rigid plates are welded around the outer surface of the bottom plate. The rib plate surface is perpendicular to the bottom plate surface to increase the rigidity of the template surface and ensure that the right inner half hole template does not deform when subjected to the side pressure of the concrete. On the right side of the bottom plate and the small lining plate, there are open semicircular holes formed by half holes in the template surface and the bending of the rib plate. The diameter, number and position of the open semicircular holes are determined according to the specifications, number and spacing of the ground beam dowels, so that after the template is installed and connected as a whole, the outer ring of the rubber plug is pressed tightly, and the inner ring of the rubber plug can press the dowels to prevent leakage of mortar at the dowels; circular holes are arranged at intervals on the rib plate for connecting the templates to each other, and the diameter of the circular holes is larger than the outer diameter of the template connection bolt pair, so that the template connection bolt pair can pass through the circular holes smoothly.

[0008] The right outer half-hole template is cut from a steel plate to form a template surface for sealing concrete. There are stiffeners along the circumference of the template surface, which are welded to the template surface and perpendicular to the template surface. The stiffeners increase the rigidity of the template surface to ensure that the right outer half-hole template does not deform when subjected to lateral pressure from concrete. On the left side of the template surface, there is an open semicircular hole formed by the half-hole on the template surface and the bending of the stiffeners. The diameter, number and position of the open semicircular holes are determined according to the specifications, number and spacing of the dowels, so that after the template is installed and connected as a whole, the outer ring of the rubber plug is pressed, and the inner ring of the rubber plug can press the dowels to prevent leakage of slurry at the dowels. Circular holes are arranged at intervals on the stiffener for the overall connection of the template. The diameter of the circular hole is larger than the outer diameter of the template connection bolt pair, so that the template connection bolt pair can pass through the circular hole smoothly.

[0009] The square hole plates are cut from steel plates and feature square holes with side lengths slightly larger than the diameter of the connecting rod. The square hole plates are welded to the right rib of the left outer half-hole template, the left rib of the left inner half-hole template, the right rib of the right inner half-hole template, and the left rib of the right outer half-hole template, with the orientation of the square hole plates aligned with the welded ribs. The geometric centers of the square holes on each square hole plate are aligned on a horizontal axis, allowing the connecting rod to pass horizontally and ensuring that the template is secured after the tapered wedge is inserted between the connecting rod and the template. The connecting rod is made of hollow steel tube.

[0010] The plate pin hole plate is composed of a rectangular steel plate with a rectangular hole and a polygonal steel plate welded together. The polygonal steel plates are respectively welded to the left rib plate of the left outer half hole template and the right rib plate of the right outer half hole template. The direction of the polygonal steel plate is consistent with the direction of the welded rib plate, and the rectangular steel plate with the rectangular opening is in the horizontal direction. The welding position of the plate pin hole plate and the rib plate is higher than the welding position of the square hole plate and the rib plate. After the connecting positioning bar passes through the square hole plate, the conical plate pin is inserted into the rectangular opening on the plate pin hole plate and extended out. The extended part of the conical plate pin presses the connecting positioning bar, so that it forms a constraint on the connecting positioning bar together with the square hole plate and the conical wedge.

[0011] Conical plate pin: inserted into the rectangular hole on the plate pin hole plate, together with the wedging force of the conical wedge, it forms a restraining effect on the connecting positioning bar.

[0012] The rubber plug has elastic expansion and contraction properties. It is a rubber body structure in which two semicircular rings are matched together to form a central hole that is sleeved on the dowel and its outer circle is clamped in the open semicircular hole of the corresponding template.

[0013] The conical wedge is made of hard material and is placed in the gap between the overlapping position of the left inner half hole template and the right inner half hole template and the connecting positioning bar to limit the overlapping connection of the left inner half hole template and the right inner half hole template.

[0014] The main body of the entire device is made of steel structure and can be used repeatedly.

[0015] Furthermore, the thickness of the formwork steel plate is 3 mm, and the rigidity meets the requirements of bearing the concrete side pressure.

[0016] Furthermore, in addition to the circumferential ribs, each template can be appropriately supplemented with longitudinal and transverse ribs according to the specific dimensions of the foundation cap to meet the template rigidity requirements. The appropriately added ribs do not constitute a limitation to the present invention.

[0017] Furthermore, the width of the square hole on the square hole plate is 3 to 5 mm larger than the outer diameter of the connecting positioning bar, and the hole height is about twice the outer diameter of the connecting positioning bar, which facilitates the connecting positioning bar to pass through the square hole.

[0018] Furthermore, the number of circular holes on the rib plate can be increased or decreased according to the spacing between the steel bars, thereby increasing or decreasing the number of connections of the bolt connection pairs, which does not constitute a limitation to the present invention.

[0019] Furthermore, the vertical joints between the templates are pressed with a compressible elastic material such as a double-sided adhesive strip that can be bonded to the sides of the templates to seal the concrete and prevent leakage.

[0020] Furthermore, the installation sequence, connection and fixing method between the template provided by the present invention and other adjacent templates are normally operated using existing technical methods and have no contradiction or impact on the present invention.

[0021] Furthermore, based on the above-mentioned template for the cast-in-place structure reinforcing bar node, the implementation steps are as follows:

[0022] S1. Positioning and laying out. Measure the relative position of the outer frame of the template and the inserted reinforcement and mark them. Mark the position of the semicircular opening on the reinforcement and make position marks.

[0023] S2. Put the rubber plug on the marked position of each dowel;

[0024] S3. Place the semicircular hole of the left outer half-hole template against the corresponding rubber plug from the left side; place the semicircular hole of the left inner half-hole template against the corresponding rubber plug from the right side;

[0025] S4. Insert the connecting bolts through the ribs of the left outer half-hole template and the left inner half-hole template to connect the two templates and tighten the connecting bolts slightly.

[0026] S5. Place the open semicircular hole of the right outer half-hole template against the corresponding rubber plug from the right side; overlap the bottom plate of the right inner half-hole template on the bottom plate surface of the left inner half-hole template; move the right inner half-hole template horizontally until the open semicircular hole of the right inner half-hole template is covered with the corresponding rubber plug;

[0027] S6. Insert the connecting bolts through the ribs of the right outer half-hole template and the right inner half-hole template to connect the two templates and tighten the connecting bolts slightly.

[0028] S7. Insert the connecting positioning bars into the holes of the square hole plate from one side in sequence;

[0029] S8, insert the tapered pin into the rectangular hole on the pin hole plate;

[0030] S9. Insert a tapered wedge into the gap between the positioning bar and the template;

[0031] S10. Adjust the insertion depth of the tapered plate pin and the tapered wedge until the template connection is smooth and meets the standard;

[0032] S11. Tighten the connecting bolts at each part;

[0033] S12. After concrete pouring, remove the formwork in the reverse order of installation. Loosen and remove the tapered plate pins and tapered wedges, pull out the connection positioning bar, loosen and pull out the bolt connection pair, move the two inner half-hole formwork and the two outer half-hole formwork in the opposite direction of the steel bars, and remove the formwork, and disengage the rubber plugs.

[0034] The beneficial effects of the present invention are as follows: a template for a cast-in-place structure rebar node is provided, and the half-hole design on the side of the template solves the problems that the traditional rebar position template needs to be precisely punched during production, is difficult to install, cannot be pulled out during removal, can only be destructively removed, and cannot be reused; by horizontally moving the right inner half-hole template, the positions of the left inner half-hole template and the right inner half-hole template can be adjusted to each other to adapt to different steel bar spacings; the problems that the template for the rebar node of the cast-in-place structure is difficult to produce, difficult to install, difficult to remove, and cannot be reused are solved; the template is easy to produce, has a reliable structure, strong bearing capacity, and is tooled and quick to install and disassemble, which significantly improves construction efficiency.

[0035] The device complies with the national green construction requirements and has good technical and economic benefits and promotion and application value. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The present invention will be further described below with reference to the accompanying drawings and examples.

[0037] Figure 1 Overall schematic front view of the present invention.

[0038] Figure 2 An overall schematic top view of the present invention.

[0039] Figure 3 Schematic diagram of the inner half-hole template of the present invention.

[0040] Figure 4 Schematic diagram of the outer half-hole template of the present invention.

[0041] Figure 5 Schematic diagram of the parts of the present invention.

[0042] Figure 1-2 In the figure, there are 1 left outer half hole template (1), 1 left inner half hole template (2), 1 right inner half hole template (3), 1 right outer half hole template (4), 1 connecting positioning bar (501), 2 plate pin hole plates (502), 2 tapered plate pins (503), 4 square hole plates (504), 1 tapered wedge (505), a rubber plug (6), a connecting bolt pair (7), and a steel bar (0).

[0043] Figure 3In the embodiment, there are a left inner mold base plate (201), a right inner mold base plate (301), a left inner mold small lining plate (202), a right inner mold small lining plate (302), a left inner mold rib plate (203), a right inner mold rib plate (303), a left inner mold circular hole (204), a right inner mold circular hole (304), a left inner mold opening semicircular hole (205), and a right inner mold opening semicircular hole (305).

[0044] Figure 4 In the embodiment, there are a left outer mold base plate (101), a right outer mold base plate (401), a left outer mold rib plate (102), a right outer mold rib plate (402), a left outer mold circular hole (103), and a right outer mold circular hole (403). DETAILED DESCRIPTION

[0045] In the description of the present invention, it should be noted that the terms "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limiting the present invention.

[0046] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or direct connections. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0047] The technical solution of the present invention will be described below with reference to the accompanying drawings. The description only illustrates some embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are intended to fall within the scope of protection of the present invention.

[0048] A template for a cast-in-place structure reinforced joint comprises a left outer half-hole template (1), a left inner half-hole template (2), a right inner half-hole template (3), and a right outer half-hole template (4), which are connected and positioned by connecting positioning bars (501), plate pin hole plates (502), tapered plate pins (503), square hole plates 504), tapered wedges (505), and connecting bolt pairs (7); and a rubber plug (6) prevents mortar leakage at the steel bar position during concrete pouring.

[0049] The left outer half-hole template (1) is cut from a steel plate, and a left outer template rib plate (102) is provided along the outer edge of the template surface. The template steel plate is 3 mm thick, and the rib plate is welded to the template surface and is perpendicular to the template surface. The right side of the left outer template bottom plate (101) has an open semicircular hole formed by the template surface opening and the bending of the rib plate.

[0050] The left inner half-hole template (2) is cut from a steel plate to form a left inner mold base plate (201) for sealing concrete. The template steel plate has a thickness of 3 mm. The outer surface of the left inner mold base plate (201) is welded with a left inner mold small lining plate (202). The left side, upper side, and lower side of the left inner mold small lining plate (202) are aligned with the left side, upper side, and lower side of the left inner mold base plate (201) and welded. The right side of the left inner mold small lining plate (202) is grooved to align with the left inner mold base plate (201). The mold base plate (201) is welded, and the left inner mold rib plate (203) is welded around the outer surface of the left inner mold small lining plate. The left inner mold rib plate (203) is perpendicular to the left inner mold small lining plate (202). The left inner mold circular holes (204) are arranged at intervals around the left inner mold rib plate (203) for the overall connection of the mold plate. On the left side of the left inner mold base plate (201), there is a left inner mold opening semicircular hole (205) formed by the half hole on the mold plate surface and the bending of the rib plate. The right inner half-hole template (3) is cut from a steel plate to form a right inner mold base plate (301) for sealing concrete. The template steel plate has a thickness of 3 mm. The inner surface of the right inner mold base plate (301) is welded with a right inner mold small lining plate (302). The right side, upper side, and lower side of the right inner mold small lining plate (302) are respectively aligned with the right side, upper side, and lower side of the right inner mold base plate (301) and welded. The left side of the right inner mold small lining plate (302) is grooved to align with the right inner mold base plate (301). 1) Plate surface welding: a right inner mold rib plate (303) is welded to the outer surface edge of the template surface formed by the right inner mold bottom plate (301) and the right inner mold small lining plate (302); the right inner mold circular holes (304) are arranged at intervals on the right inner mold rib plate (303); and a right inner mold opening semicircular hole (305) is formed by a half hole in the template surface and the bending of the rib plate on the right side of the template surface formed by the right inner mold bottom plate (301) and the right inner mold small lining plate (302).

[0051] The right outer half-hole template (4) is cut from steel plate to form the right outer template bottom plate (401) for retaining concrete. The template steel plate is 3mm thick and has a right outer template rib plate (402) along the outer edge of the template surface. The rib plate is welded to the template surface and is perpendicular to the template surface. The left side of the right outer template bottom plate (401) has an open semicircular hole formed by the template surface opening and the bending of the rib plate. The square hole plate (504) is cut from steel plate and is welded to the right rib plate of the left outer half-hole template (1), the left rib plate of the left inner half-hole template (2), the right rib plate of the right inner half-hole template (3), and the left rib plate of the right outer half-hole template (4). The centers of the welded square hole plates coincide on an axis. This allows the connecting positioning bar (501) to pass through smoothly and ensures that after the conical wedge (505) is wedged between the positioning bar (501) and the template, the template surface facing the concrete is on the same plane. The connecting positioning bar (501) is a steel hollow tube.

[0052] The plate pin hole plate (502) is formed by welding a rectangular steel plate with a rectangular opening and a polygonal steel plate. The other side of the polygonal steel plate is welded to the left rib plate of the left outer half hole template (1) and the right rib plate of the right outer half hole template (4). The direction of the polygonal steel plate is the same as that of the vertical rib plate. The rectangular steel plate with the rectangular opening is horizontal. The welding position of the plate pin hole plate (502) and the rib plate is located above the connection positioning bar (501).

[0053] The rubber plug (6) has elastic expansion and contraction properties and is a rubber body structure in which two semicircular rings are joined together to form a central hole which is sleeved on the inserted reinforcement and the outer circle of the rubber plug is clamped in the open semicircular hole of the corresponding template.

[0054] During construction, the position of the rubber plug (6) is marked on the steel bar according to the relative position of the designed template and the steel bar. The rubber plug (6) is first put on the steel bar, and then the template is installed. The open semicircular holes on the template are brought close to the rubber plug (6) from both sides. After the corresponding open semicircular holes on both sides of the steel bar are aligned and press the rubber plug (6), bolts are inserted into the circular holes on the rib plate and tightened. After the bolt connection pair (7) is tightened, the corresponding open semicircular holes of the template clamp the rubber plug (6) from both sides to prevent mortar leakage at the steel bar position when pouring concrete.

[0055] The bottom plates of the two inner half-hole templates are overlapped with each other, and the overlap length of the bottom plates is adjusted so that the corresponding open semicircular holes are aligned and the rubber plug (6) is pressed.

[0056] The vertical joints between the formwork are pressed with compressible elastic materials such as double-sided adhesive strips that can be bonded to the sides of the formwork to seal the concrete and prevent leakage.

[0057] After the connecting positioning bar (501) passes through the square hole plate, the conical plate pin (503) is inserted into the rectangular opening on the plate pin hole plate to press the connecting positioning bar. Together with the square hole plate (504) and the conical wedge (505), the connecting positioning bar (501) is constrained, thereby connecting the left outer half hole template (1), the left inner half hole template (2), the right inner half hole template (3), and the right outer half hole template (4) into a whole.

[0058] The depth of the tapered plate pin (503) inserted into the rectangular hole on the plate pin hole plate is regulated, and the flatness of the template surface is regulated in combination with the wedge force of the tapered wedge (505).

[0059] The implementation steps are as follows:

[0060] S1. Positioning and laying out. Measure and mark the position of the outer frame of the template relative to the dowels, mark the position of the semicircular opening, and make position marks.

[0061] S2. Put the rubber plugs (6) on the marked positions respectively;

[0062] S3, align the open semicircular holes of the left outer half-hole template (1) with the corresponding rubber plugs (6), and move them horizontally until the rubber plugs are sleeved in the open semicircular holes; move the left inner half-hole template (2) close to the rubber plugs (6) until the rubber plugs (6) are sleeved in the open semicircular holes of the corresponding left inner half-hole template;

[0063] S4. Insert the connecting bolts through the ribs of the left outer half-hole template (1) and the left inner half-hole template (2) to connect the two templates and tighten the connecting bolts slightly;

[0064] S5, align the open semicircular holes of the right outer half hole template (4) with the corresponding rubber plugs, and move them horizontally until the rubber plugs are sleeved in the open semicircular holes; overlap the bottom plate of the right inner half hole template (3) on the bottom plate surface of the left inner half hole template (2), move the right inner half hole template (3) close to the horizontal rubber plugs (6), until the corresponding rubber plugs (6) are sleeved in the open semicircular holes of the left inner half hole template;

[0065] S6. Insert the connecting bolts through the ribs of the right outer half hole template (4) and the right inner half hole template (3) to connect the two templates and tighten the connecting bolts slightly;

[0066] S7, insert the connecting positioning bar (501) into the hole of the square hole plate from one side in sequence, and position the connecting positioning bar so that both ends are aligned with the rectangular holes on the plate pin hole plate (502);

[0067] S8, inserting the tapered plate pin (503) into the rectangular hole on the plate pin hole plate (502);

[0068] S9, inserting a tapered wedge (505) into the gap between the connecting positioning bar (501) and the template;

[0069] S10, adjusting the insertion depth of the tapered plate pin (503) and the tapered wedge (505) until the template connection is level and standard;

[0070] S11, tighten the connection bolts (7) at various locations of the rib plate;

[0071] S12. After concrete pouring is completed, the order of removing the formwork is the opposite of the installation order. Knock out and remove the tapered plate pin (503) and tapered wedge (505), pull out the connecting positioning bar (501), loosen and pull out the bolt connection pair (7), move the two inner half-hole formwork and the two outer half-hole formwork in the opposite direction of the steel bar, and remove the formwork, and disengage the rubber plug (6) from the inserted bar.

Claims

1. A formwork for a cast-in-place structure reinforcing bar node, characterized by: It includes a left outer half-hole template, a left inner half-hole template, a right inner half-hole template, a right outer half-hole template, a connecting positioning bar, a plate pin hole plate, a conical plate pin, a square hole plate, a conical wedge, a rubber plug, and a template connecting bolt pair; four templates are made of steel material, and each template has an open semicircular hole on one side, and small lining plates are welded on the left side of the outer surface of the bottom plate of the left inner half-hole template and on the right side of the inner surface of the bottom plate of the right inner half-hole template; the rubber plug has elastic expansion and contraction properties, and is a rubber body structure with a center hole formed by two semicircular rings fitted together; a square hole plate and a plate pin hole plate are welded on the template, and after the connecting positioning bar is inserted, the conical plate pin and the conical wedge are inserted to adjust and fix the template as a whole.

2. The formwork for a cast-in-place structure reinforcing bar node according to claim 1, characterized in that: The open semicircular holes of the left outer half hole template and the left inner half hole template, and the corresponding open semicircular holes of the right inner half hole template and the right outer half hole template form circular holes for clamping the rubber plugs.

3. The formwork for a cast-in-place structure reinforcing bar node according to claim 1, characterized in that: The bottom plate of the left inner half-hole template and the bottom plate of the right inner half-hole template overlap each other, and the overlap length is adjusted to adapt to different dowel spacings.

4. The formwork for a cast-in-place structure reinforcing bar node according to claim 1, wherein: The center hole of the rubber plug presses the rebar to prevent leakage.

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