Tongue-and-groove forming assembly for butt joint of main beam and prefabricated outer wall

Abstract

The utility model relates to the field of buildings, in particular to a tongue-and-groove forming assembly used for butt joint of a main beam and a prefabricated outer wall. The tongue-and-groove forming assembly for butt joint of the main beam and the prefabricated outer wall comprises a tongue-and-groove formwork, cement is poured into a formwork cavity, so that an inverted-U-shaped tongue-and-groove is formed in the main beam, and a joint between the tongue-and-groove and the main beam is lower than a building floor. According to the utility model, the tongue-and-groove template is fixed on the template of the main beam, and the cement is poured into the template cavity, so that the inverted U-shaped tongue-and-groove matched with the butt joint end of the prefabricated outer wall is integrally formed on the main beam, the construction process is simplified, the problems of construction complexity and joint caused by secondary pouring are avoided, the construction efficiency is improved, and the construction cost is reduced. The waterproof performance of the tongue-and-groove joint is also enhanced; the joint position of the tongue-and-groove and the main beam is lower than the building floor, so that moisture and moisture can be blocked by mortar of a building surface layer, water vapor or accumulated water is effectively prevented from permeating into a room to be accumulated through the joint, and the problem that a wall root and a wall surface get damp is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of building, concretely is a kind of for the butt joint of main girder and prefabricated outer wall to form the component of groove. BACKGROUND

[0002] In modern construction, prefabricated cement outer wall board is widely used due to its fast construction speed, easy quality control and other advantages. The prefabricated outer wall board is usually installed on the main structure beam. In order to prevent rainwater from penetrating into the room, a groove is usually provided on the main beam to connect with the prefabricated outer wall, so that a groove joint is formed between the main beam and the prefabricated outer wall. The groove joint is designed to be lower on the outside and higher on the inside, which is to guide the rainwater outward and reduce the possibility of rainwater entering the room along the joint. However, there are some problems in the design of the groove at the connection between the main beam and the prefabricated outer wall. First, the groove joint on the main beam is higher than the indoor finishing layer. When the outdoor humidity is high or the rainfall is large, water vapor or water may enter the room through the joint and accumulate, which may even cause indoor dampness and other problems. Second, the traditional construction method of the main beam groove requires secondary pouring after the completion of the main structure beam construction. This construction method is more complicated and requires accurate control of construction time and conditions. In addition, secondary pouring is also prone to construction joints on the main beam, which may become a weak link for water penetration, thereby reducing the waterproof performance of the entire groove joint.

[0003] Therefore, it is necessary to develop a groove forming assembly for the butt joint of main beam and prefabricated outer wall, which can effectively prevent rainwater from penetrating into the room and simplify the construction process. CONTENT OF THE UTILITY MODEL

[0004] In view of the problems in the design of the groove at the connection between the main beam and the prefabricated outer wall of the prior art mentioned above, the technical solution adopted by the utility model to solve the technical problems is:

[0005] A groove forming assembly for the butt joint of main beam and prefabricated outer wall, comprising a groove template fixed on a main beam formwork. By pouring cement into the formwork enclosed by the main beam formwork and the groove template, a reverse U-shaped groove matching the butt joint end of the prefabricated outer wall is formed on the main beam, and the groove joint is lower than the building floor.

[0006] Further, the groove forming assembly for the butt joint of main beam and prefabricated outer wall according to the scheme, wherein the groove template is further provided with a first enclosing end, a second enclosing end and a third enclosing end connecting the first enclosing end and the second enclosing end, the first enclosing end, the second enclosing end and the third enclosing end enclosing a groove slot, and the groove slot is used to form the groove.

[0007] Furthermore, the tongue-and-groove forming component for connecting the main beam and the precast exterior wall described in the solution is provided with a first fixed end connected to the first enclosing end and a second fixed end connected to the second enclosing end. The lower surface height of the first fixed end and the second fixed end is equal to the surface height of the main beam, and the thickness of the building surface layer is greater than the joint thickness between the main beam and the precast exterior wall.

[0008] Furthermore, in the tongue-and-groove forming component for connecting the main beam and the precast exterior wall described in the solution, the first enclosing end and the second enclosing end are symmetrically arranged, the tongue and groove gradually increases from top to bottom towards the main beam, and the cross-section of the tongue and groove is trapezoidal.

[0009] Furthermore, the tongue-and-groove forming component for connecting the main beam and the precast exterior wall described in the solution also includes a limiting steel bar fixed to the main beam, the limiting steel bar being used for positioning the main beam and the precast exterior wall.

[0010] Furthermore, the tongue-and-groove forming assembly for connecting the main beam and the precast exterior wall described in the solution also includes a connector located in the template cavity and connected to the main beam template. The first fixed end is connected to the connector, and the second fixed end is connected to the main beam template, so that the tongue-and-groove template and the main beam template are fixedly connected.

[0011] Furthermore, the tongue-and-groove forming assembly for connecting the main beam and the precast exterior wall described in the solution is provided with an exhaust hole and a limiting hole for fixing the position of the limiting steel bar at the third enclosing end.

[0012] Furthermore, in the tongue-and-groove forming component for connecting the main beam and the precast exterior wall described in the solution, the diameter of the limiting steel bar is 14-25mm, the spacing of the limiting steel bars is 0.5-1.5 meters, and the diameter of the steel bar limiting hole is 25mm-35mm.

[0013] Furthermore, in the tongue-and-groove forming component for connecting the main beam and the precast exterior wall described in the solution, the diameter of the vent hole is 15mm-25mm, and the spacing between the vent holes is 250-350mm.

[0014] Furthermore, in the tongue-and-groove forming component for connecting the main beam and the precast exterior wall described in the solution, the width of the connector is 80-90mm, the wall thickness is 3-6mm, the distance between the connectors is 0.5-1.5 meters, the tongue-and-groove template is made of aluminum alloy, and the connectors are made of steel.

[0015] The beneficial effects of this utility model are as follows:

[0016] This invention achieves an integrated inverted U-shaped tongue-and-groove structure on the main beam that is compatible with the precast exterior wall by fixing a tongue-and-groove template to the main beam template and pouring cement into the template cavity. This not only simplifies the construction process and avoids the construction complexity and joint problems caused by the traditional secondary grouting method, thus improving construction efficiency, but also enhances the waterproof performance of the tongue-and-groove joint. By making the joint between the tongue and the main beam lower than the building floor, it ensures that moisture and dampness can be blocked by the building surface mortar, effectively preventing water vapor or water accumulation from seeping into the room through the joint, thereby avoiding the problem of dampness at the wall base and wall surface.

[0017] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the installation of a tongue-and-groove forming component for connecting a main beam to a precast exterior wall, according to the present invention.

[0019] Figure 2 This is a schematic diagram of the installation of a tongue-and-groove forming component for connecting a main beam to a precast exterior wall, according to the present invention.

[0020] Figure 3 This is a schematic diagram of the tongue-and-groove forming component for connecting a main beam and a precast exterior wall, according to the present invention.

[0021] Figure 4 This is a schematic diagram of the tongue-and-groove forming component for connecting a main beam to a precast exterior wall, according to the present invention.

[0022] Figure 5 This is a schematic diagram of the tongue-and-groove forming component for connecting a main beam to a precast exterior wall, according to the present invention. Detailed Implementation

[0023] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0024] like Figures 1-5 The diagram shows a tongue-and-groove forming component for connecting a main beam to a precast exterior wall. It includes a tongue-and-groove template 1 fixed to the main beam template. By injecting cement into the template cavity formed by the main beam template and the tongue-and-groove template 1, the main beam forms an inverted U-shaped tongue-and-groove that matches the joint end of the precast exterior wall. The joint between the tongue-and-groove and the main beam is lower than the building floor.

[0025] This invention achieves an integral formation of an inverted U-shaped tongue-and-groove structure on the main beam that is compatible with the precast exterior wall by fixing the tongue-and-groove template 1 to the main beam template and pouring cement into the template cavity. This not only simplifies the construction process and avoids the construction complexity and joint problems caused by the traditional secondary grouting method, thus improving construction efficiency, but also enhances the waterproof performance of the tongue-and-groove joint. By setting the position of the tongue-and-groove joint with the main beam lower than the building floor, it ensures that moisture and dampness can be blocked by the building surface mortar, effectively preventing water vapor or water accumulation from seeping into the room through the joint, thereby avoiding the problem of dampness at the wall base and wall surface.

[0026] Specifically, the traditional tongue-and-groove construction method involves pouring cement a second time after the main beam formwork is completed to form the tongue and groove. This method is not only cumbersome, but the construction joint formed between the old and new cement also poses a risk of water seepage. In contrast, the tongue and groove of this invention are formed in one step with the main beam, which simplifies the construction steps and avoids the complexity and construction joint problems caused by secondary pouring, thereby improving construction efficiency and eliminating the risk of leakage at the joint, greatly enhancing the waterproof performance of the tongue and groove joint. In addition, the traditional joint design is lower on the outside and higher on the inside, resulting in the indoor tongue and groove connection with the main beam being higher than the building floor. Excessive moisture or water accumulation can easily enter and accumulate indoors through joints, causing dampness and potentially leading to mold growth on walls over time. This invention addresses this by using an inverted U-shaped tongue-and-groove joint with a higher center and lower sides. This design effectively guides rainwater outwards through the inclined surface of the tongue-and-groove joint closest to the outside, preventing rainwater from seeping into the room along the joints. Furthermore, by connecting the inclined surface of the tongue-and-groove joint closest to the inside to the main beam joint, the joint is positioned lower than the building floor level, further ensuring that moisture and dampness are blocked by the building surface mortar before entering the room. This effectively prevents moisture or water accumulation indoors and avoids dampness at the base of walls and on the walls.

[0027] Furthermore, such as Figures 1-5 The diagram shows a tongue-and-groove forming assembly for connecting a main beam to a precast exterior wall. The tongue-and-groove template 1 is further provided with a first enclosing end 11, a second enclosing end 12, and a third enclosing end 13 connecting the first enclosing end 11 and the second enclosing end 12. The first enclosing end 11, the second enclosing end 12, and the third enclosing end 13 enclose a tongue-and-groove groove 14, which is used to form a tongue and groove.

[0028] This invention, by setting a first enclosing end 11, a second enclosing end 12, and a third enclosing end 13 on the tongue-and-groove template 1 to form a tongue-and-groove groove 14, can ensure that the shape and size of the tongue and groove are precisely controlled during cement pouring. This setting not only improves the accuracy of tongue and groove forming, but also, through the tongue-and-groove groove 14, allows the main beam to be formed together with the tongue and groove, further enhancing the waterproof performance of the tongue-and-groove joint. This effectively prevents moisture or water from seeping into the room through the joint and accumulating, thereby avoiding the problem of dampness at the base of the wall and on the wall surface.

[0029] Furthermore, such as Figures 1-5 The diagram shows a tongue-and-groove forming assembly for connecting a main beam to a precast exterior wall. The tongue-and-groove template 1 is further provided with a first fixed end 15 connected to a first enclosing end 11 and a second fixed end 16 connected to a second enclosing end 12. The lower surface height of the first fixed end 15 and the second fixed end 16 is equal to the surface height of the main beam, and the thickness of the building surface layer is greater than the joint thickness between the main beam and the precast exterior wall.

[0030] This utility model sets the lower surface height of the first fixed end 15 and the second fixed end 16 to be equal to the height of the main beam surface. In this embodiment, the joint between the main beam and the precast exterior wall is 2cm, and the building surface layer thickness is 5cm. This setting ensures that after the building surface layer is laid on the main beam surface, the joint between the tongue and groove and the main beam can be hidden in the building surface layer. This prevents water vapor or water accumulation from seeping into the room through the joint by the cement mortar in the surface layer, thereby avoiding the problem of dampness at the wall base and wall surface, and further improving the waterproof performance of the building.

[0031] Furthermore, such as Figures 1-5 The diagram shows a tongue-and-groove forming component for connecting a main beam to a precast exterior wall, wherein the first enclosing end 11 and the second enclosing end 12 are symmetrically arranged, the tongue and groove 14 gradually increases in size from top to bottom towards the main beam, and the cross-section of the tongue and groove 14 is trapezoidal.

[0032] This invention designs the tongue and groove groove 14 with a trapezoidal cross-section that gradually increases in size from top to bottom towards the main beam, creating a tongue and groove joint that is high in the middle and low on both sides. This design not only enhances the stability of the tongue and groove joint but also allows the inclined surface of the tongue and groove near the outside to guide rainwater outward, effectively reducing the possibility of rainwater entering the room along the joint. Furthermore, this design makes it easier for the tongue and groove template 1 to detach from the tongue and groove during demolding, reducing resistance and friction during the demolding process, improving demolding efficiency, and also reducing the impact on the... The risk of damage to the tongue and groove formwork 1 and the tongue and groove; furthermore, because the cross-section of the tongue and groove is set in a trapezoidal shape, the joint between the tongue and groove and the main beam is lower than the building surface layer by the inclined surface of the tongue and groove close to the interior, which can block the path of water vapor or water accumulation to seep into the interior through the joint by the mortar in the building surface layer, thereby further improving the waterproof performance of the building; furthermore, by setting the cross-section of the tongue and groove groove 14 in a trapezoidal shape, the cement can flow and distribute better in the tongue and groove groove 14, thereby making the tongue and groove forming more uniform and further improving the quality of tongue and groove forming.

[0033] Furthermore, such as Figures 1-5 The diagram shows a tongue-and-groove forming assembly for connecting a main beam to a precast exterior wall, which also includes a limiting steel bar 2 fixed to the main beam, the limiting steel bar 2 being used for positioning the main beam and the precast exterior wall.

[0034] This invention improves the accuracy of the connection between the main beam and the precast exterior wall by setting a limiting steel bar 2 on the main beam, ensuring that the two do not need to spend too much time aligning when connecting, thus making the installation process more efficient and orderly, reducing the subsequent adjustment work caused by misalignment, and improving the overall construction efficiency. Furthermore, the limiting steel bar 2 effectively solves the problem of lateral displacement that may occur when the precast exterior wall is subjected to a large horizontal load during construction, thereby preventing cracking and water seepage caused by excessive lateral displacement of the precast exterior wall.

[0035] Furthermore, such as Figures 1-5 The diagram shows a tongue-and-groove forming assembly for connecting a main beam to a precast exterior wall, which also includes a connector 3 located in the template cavity and connected to the main beam template. The first fixed end 15 is connected to the connector 3, and the second fixed end 16 is connected to the main beam template, so that the tongue-and-groove template 1 is fixedly connected to the main beam template.

[0036] This utility model makes the installation and disassembly of the tongue and groove template 1 simpler and faster through the detachable connection between the first fixed end 15 and the connector 3, and the detachable connection between the second fixed end 16 and the main beam template. In this embodiment, the first fixed end 15 and the connector 3, and the second fixed end 16 and the main beam template are connected by threads. This not only simplifies the installation process of the tongue and groove template 1, but also allows the tongue and groove template 1 to be disassembled and recycled after use, which is convenient for reuse in future construction projects and reduces material costs.

[0037] Furthermore, such as Figures 1-5 The diagram shows a tongue-and-groove forming assembly for connecting a main beam to a precast exterior wall, wherein the third enclosing end 13 is provided with an exhaust hole 131 and a limiting hole 132 for fixing the position of the limiting steel bar 2.

[0038] This invention effectively reduces the pressure difference between the main beam and the tongue and groove and the outside world during the cement pouring process into the template cavity by setting an exhaust hole 131 at the third enclosure end 13. This ensures that the main beam and the tongue and groove remain compact during the cement pouring process, avoiding the problems of holes and cracks in the tongue and groove caused by pressure difference, and improving the integrity and surface flatness of the tongue and groove forming. Furthermore, the setting of the limiting hole 132 ensures the stability of the position of the limiting steel bar 2 during the pouring process, avoiding the problem of misalignment between the main beam and the precast exterior wall caused by the deviation of the limiting steel bar 2. This improves the accuracy of the connection between the main beam and the precast exterior wall, making the connection process more efficient and the connection between the main beam and the precast exterior wall more stable.

[0039] Furthermore, such as Figures 1-5 The diagram shows a tongue-and-groove forming assembly for connecting a main beam to a precast exterior wall, wherein the diameter of the limiting steel bar 2 is 14-25mm, the spacing of the limiting steel bars 2 is 0.5-1.5 meters, and the diameter of the steel bar limiting hole 132 is 25mm-35mm.

[0040] This invention ensures that the limiting reinforcing bars 2 have sufficient strength and rigidity to withstand large horizontal loads without plastic deformation by setting their diameter within the range of 14-25mm. If the diameter of the limiting reinforcing bars 2 exceeds 25mm, it will increase unnecessary weight and material costs, while limiting reinforcing bars 2 with a diameter less than 14mm may deform or break under large loads, affecting their limiting effect. Furthermore, by setting the spacing of the limiting reinforcing bars 2 within the range of 0.5-1.5 meters, uniform limiting of the precast exterior wall in all directions is ensured, preventing lateral displacement of the precast exterior wall due to uneven stress. If the spacing is greater than 1 meter... A spacing of 0.5 meters may result in insufficient restraint in some areas, causing local displacement of the precast exterior wall. A spacing of less than 0.5 meters may lead to excessive restraint, increasing construction difficulty and material costs. Furthermore, by setting the diameter of the rebar restraint hole 132 within the range of 25mm-35mm, the stability of the restraint rebar 2's position is ensured during cement pouring, preventing it from shifting before the cement hardens. If the diameter of the rebar restraint hole 132 exceeds 35mm, the restraint rebar 2 may shift excessively during pouring. On the other hand, a rebar restraint hole 132 with a diameter less than 25mm may be difficult to insert the restraint rebar 2, thus increasing construction difficulty.

[0041] Furthermore, such as Figures 1-5 The diagram shows a tongue-and-groove forming assembly for connecting a main beam to a precast exterior wall, wherein the vent holes 131 have a diameter of 15mm-25mm and a spacing of 250-350mm.

[0042] This invention ensures that air inside the tongue and groove can be effectively discharged during cement pouring by setting the diameter of the vent holes 131 within the range of 15mm-25mm, reducing the pressure difference between the inside and outside, and preventing the cement from being poured in a loose manner. If the diameter of the vent holes 131 exceeds 25mm, cement may flow out from the vent holes 131 during pouring, affecting the molding quality of the tongue and groove. If the diameter of the vent holes 131 is less than 15mm, it may become blocked during pouring, affecting the venting effect. Furthermore, the spacing of the vent holes 131 is set within the range of 250-350mm to ensure uniform venting throughout the entire length of the tongue and groove, avoiding voids or cracks in local areas due to poor venting. If the spacing is greater than 350mm, it may lead to poor venting in some areas, while the spacing is less than 250mm, which may increase manufacturing costs. At the same time, too many vent holes 131 may also affect the structural strength of the tongue and groove.

[0043] Furthermore, such as Figures 1-5The diagram shows a tongue-and-groove forming assembly for connecting a main beam to a precast exterior wall, wherein the connector 3 has a width of 80-90mm and a wall thickness of 3-6mm, the distance between the connectors 3 is 0.5-1.5 meters, the tongue-and-groove template 1 is made of aluminum alloy, and the connectors 3 are made of steel.

[0044] This invention ensures that the connector 3 has sufficient lateral support capacity by setting its width within the range of 80-90mm, thus supporting the stability of the tongue and groove template 1 during cement pouring. If the width of the connector 3 exceeds 90mm, it will increase unnecessary material consumption and weight, while if the width is less than 80mm, the connector 3 may not provide sufficient support for the tongue and groove template 1, leading to deformation. Furthermore, by setting the wall thickness of the connector 3 within the range of 3-6mm, it ensures that the connector 3 does not deform under external loads, maintaining its structural strength. If the wall thickness exceeds 6mm, it will increase the weight and cost of the connector 3, while a wall thickness less than 3mm may bend or break under loads. Furthermore, the tongue and groove template 1 is made of aluminum alloy. The lightweight nature of aluminum alloy makes the tongue and groove template 1 easier to handle and install, reducing the labor intensity of workers and accelerating the construction progress. In addition, aluminum alloy has good... The corrosion resistance and rust resistance ensure that the tongue and groove formwork 1 maintains good surface quality even after multiple uses, thus extending its service life. Furthermore, the connector 3 is made of steel, whose high strength allows it to withstand large loads without deformation, ensuring the stability of the connector 3 when fixing the tongue and groove formwork 1. Additionally, the wear resistance and impact resistance of steel make the connector 3 less prone to damage in complex construction environments, further ensuring the stability of the tongue and groove formwork 1. Moreover, the distance between the connectors 3 is set at 0.5-1.5 meters, which ensures better stability of the tongue and groove formwork 1 during cement pouring and facilitates operation by construction personnel. If the distance is greater than 1.5 meters, it may lead to uneven stress distribution during pouring, increasing the risk of formwork deformation. Conversely, if the distance is less than 0.5 meters, although it increases the stability of the formwork, it restricts the operating space for construction personnel, reduces construction efficiency, and increases material costs.

[0045] like Figures 1-5 As shown, the implementation method of this embodiment is as follows:

[0046] Example 1:

[0047] This embodiment provides a tongue-and-groove forming component for connecting a main beam to a precast exterior wall, enabling the main beam and the tongue-and-groove joint to be integrally formed. The specific construction steps are as follows: First, install the main beam template and fix the steel connector 3 inside the main beam template. The connector 3 has a width of 80mm, a wall thickness of 3mm, and a distance of 0.5 meters between connectors 3. The lower edge of the connector 3 is connected to the main beam template by bolts. Next, fix one end of the limiting steel bar 2 inside the main beam template. The limiting steel bar 2 has a diameter of 14mm, a spacing of 0.5 meters, and a diameter of 25mm for the steel bar limiting hole 132. Then, install the tongue-and-groove template 1 made of aluminum alloy, so that the other end of the limiting steel bar 2 protrudes from the main beam template through the steel bar limiting hole 132 on the tongue-and-groove template 1. The first fixed end 15 of the tongue-and-groove template 1 is bolted to the upper edge of the connector 3, and the second fixed end 16 is also bolted to the main beam template, thereby forming a template cavity with the main beam template and the tongue-and-groove template 1.

[0048] Subsequently, cement is poured into the template cavity, forming the tongue and groove joint and the main beam as a single unit. The tongue and groove template 1 has a first enclosing end 11, a second enclosing end 12, and a third enclosing end 13 connecting the first and second enclosing ends 11 and 12. These three ends together form a tongue and groove groove 14, which forms the tongue and groove joint. The groove 14 has an inverted U-shaped cross-section, resulting in a shape that is higher in the middle and lower on both sides. Furthermore, the lower surfaces of the first and second fixed ends 15 and 16 are equal in height to the surface of the main beam. The joint between the main beam and the precast exterior wall is 2cm, and the building surface layer is 5cm thick, allowing the joint between the tongue and groove joint and the main beam to be concealed within the building surface layer. The third enclosing end 13 has vent holes 131 with a diameter of 15mm and a spacing of 250mm. These vent holes reduce the pressure difference between the main beam and the tongue and groove joint and the external environment during cement pouring, ensuring the density of the tongue and groove joint during cement pouring.

[0049] After the cement has fully set, the tongue and groove formwork 1 is removed. At this time, the joint between the tongue and groove and the main beam is lower than the building floor, which allows the mortar in the building surface layer to effectively block water vapor or water accumulation at the joint from seeping into the room and accumulating on the building floor surface and at the base of the wall, thereby avoiding the problem of dampness at the base of the wall and the wall surface.

[0050] Example 2:

[0051] This embodiment is similar to Embodiment 1 in terms of installation steps and features, except that in this embodiment, the width of the connector 3 is 90mm, the wall thickness is 6mm, and the distance between the connectors 3 is 1.5 meters. The diameter of the limiting steel bars 2 is 25mm, and the spacing is 1.5 meters. The diameter of the steel bar limiting hole 132 is 35mm. The diameter of the vent hole 131 is 25mm, and the spacing is 350mm. The tongue and groove cross-section is an isosceles trapezoid, and gradually increases from top to bottom towards the main beam.

[0052] Example 3:

[0053] This embodiment is similar to Embodiment 1 in terms of installation steps and features, except that in this embodiment, the width of the connector 3 is 85mm, the wall thickness is 4mm, and the distance between the connectors 3 is 1 meter. The diameter of the limiting steel bars 2 is 20mm, and the spacing is 1 meter. The diameter of the steel bar limiting hole 132 is 30mm. The diameter of the vent hole 131 is 20mm, and the spacing is 300mm.

[0054] Example 4:

[0055] This embodiment is similar to Embodiment 1 in terms of installation steps and features, except that in this embodiment, the width of the connector 3 is 88mm, the wall thickness is 5mm, and the distance between the connectors 3 is 1.3 meters. The diameter of the limiting steel bars 2 is 22mm, and the spacing is 1.3 meters. The diameter of the steel bar limiting hole 132 is 33mm. The diameter of the vent hole 131 is 23mm, and the spacing is 330mm.

[0056] The above examples are merely illustrative of the technical content of this utility model to facilitate reader understanding, but do not imply that the implementation of this utility model is limited to these embodiments. Any technical extensions or re-creations made based on this utility model are protected by this utility model. The scope of protection of this utility model is defined by the claims.

Claims

1. A tongue-and-groove forming component for connecting a main beam to a precast exterior wall, characterized in that: The main beam is formed by injecting cement into the template cavity formed by the main beam template and the tongue and groove template (1), so that the main beam forms an inverted U-shaped tongue and groove that matches the joint end of the precast exterior wall, and the joint between the tongue and groove and the main beam is lower than the building floor.

2. The tongue-and-groove forming component for connecting a main beam and a precast exterior wall according to claim 1, characterized in that: The tongue and groove template (1) is further provided with a first enclosing end (11), a second enclosing end (12), and a third enclosing end (13) connecting the first enclosing end (11) and the second enclosing end (12). The first enclosing end (11), the second enclosing end (12), and the third enclosing end (13) enclose a tongue and groove groove (14), which is used to form a tongue and groove.

3. The tongue-and-groove forming component for connecting a main beam and a precast exterior wall according to claim 2, characterized in that: The tongue and groove template (1) is also provided with a first fixed end (15) connected to the first enclosure end (11) and a second fixed end (16) connected to the second enclosure end (12). The lower surface height of the first fixed end (15) and the second fixed end (16) is equal to the surface height of the main beam, and the thickness of the building surface layer is greater than the joint thickness of the main beam and the precast exterior wall.

4. A tongue-and-groove forming component for connecting a main beam and a precast exterior wall according to claim 2, characterized in that: The first enclosing end (11) and the second enclosing end (12) are symmetrically arranged. The tongue and groove (14) gradually increases from top to bottom towards the main beam. The cross section of the tongue and groove (14) is trapezoidal.

5. A tongue-and-groove forming component for connecting a main beam and a precast exterior wall according to claim 2, characterized in that: It also includes a limiting steel bar (2) fixed to the main beam, which is used for positioning the main beam and the precast exterior wall.

6. A tongue-and-groove forming component for connecting a main beam and a precast exterior wall according to claim 3, characterized in that: It also includes a connector (3) located in the template cavity and connected to the main beam template. The first fixed end (15) is connected to the connector (3), and the second fixed end (16) is connected to the main beam template, so that the tongue and groove template (1) is fixedly connected to the main beam template.

7. A tongue-and-groove forming component for connecting a main beam and a precast exterior wall according to claim 5, characterized in that: The third enclosure end (13) is provided with an exhaust hole (131) and a limiting hole (132) for fixing the position of the limiting steel bar (2).

8. A tongue-and-groove forming component for connecting a main beam and a precast exterior wall according to claim 7, characterized in that: The diameter of the limiting steel bar (2) is 14-25mm, the spacing of the limiting steel bar (2) is 0.5-1.5 meters, and the diameter of the limiting hole (132) is 25mm-35mm.

9. A tongue-and-groove forming component for connecting a main beam and a precast exterior wall according to claim 7, characterized in that: The diameter of the exhaust hole (131) is 15mm-25mm, and the spacing between the exhaust holes (131) is 250-350mm.

10. A tongue-and-groove forming assembly for connecting a main beam and a precast exterior wall according to claim 6, characterized in that: The width of the connector (3) is 80-90mm and the wall thickness is 3-6mm. The distance between the connectors (3) is 0.5-1.5 meters. The tongue and groove template (1) is made of aluminum alloy and the connectors (3) are made of steel.

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