Main beam pouring mold and side mold for fabricated building

Abstract

The utility model relates to the technical field of building molds, in particular to a main beam pouring mold and a side mold for an assembly type building, the section of the main beam pouring mold is in an inverted n shape, the main beam pouring mold comprises a forming bottom plate, a forming side plate, a supporting plate and first connecting holes, and the first connecting holes are located in the end faces of the forming bottom plate, the forming side plate and the supporting plate. The positions of the first connecting holes of the adjacent main beam pouring molds are consistent, and fasteners penetrate through the first connecting holes for connection. The side mold comprises a bottom plate, a vertical plate, a top plate and a third reinforcing rib, a third connecting hole is formed in the bottom plate, and a fourth connecting hole is formed in the third reinforcing rib. The construction efficiency is high, the mold is integrally formed and designed, the mold can be integrally hoisted after being spliced on the ground, high-altitude operation is reduced, the construction efficiency is improved, fastening is achieved through the connecting holes, and the construction cost is reduced. And tight joints are ensured, slurry leakage is avoided, the structure is stable, and tiepieces do not need to be arranged between the forming side plates.

Description

Technical Field

[0001] The utility model relates to the technical field of building molds, and particularly relates to a main beam pouring mold and a side mold for prefabricated buildings. Background Art

[0002] In the prior art, the molds for main beams are generally erected on site with wooden boards, which has low efficiency. Moreover, slurry leakage occurs at the joints between the wooden boards, and the wooden boards are prone to deformation after long-term use, resulting in a decline in construction quality. In addition, the wooden molds need to be erected on site by workers at high altitudes, increasing the high-altitude operation time and posing greater safety hazards, which do not meet the requirements of modern construction in terms of economy, safety, greenness, and aesthetics. The existing patent CN115126225A, a floor slab formwork support beam and a floor slab formwork support assembly, uses plates for splicing and also uses tension bars to prevent the side plates from deforming, but it is inconvenient to disassemble and assemble, and the construction efficiency is low. Content of the Utility Model

[0003] The problem solved by the utility model is that in the actual construction process of the prior art, the molds for main beams are erected on site with wooden boards, which do not meet the requirements of modern construction in terms of economy, safety, greenness, and aesthetics. Now, the utility model provides a more efficient and safer main beam pouring mold and side mold for prefabricated buildings.

[0004] The utility model is realized through the following technical solutions. A main beam pouring mold for prefabricated buildings, the main beam pouring mold is integrally formed by plastic processing, and its cross-section is an inverted "several" shape, including:

[0005] A formed bottom plate, the upper side of which is a formed bottom surface for forming the bottom surface of the main beam, and the lower side is a first support surface for abutting against the main beam scaffold below the main beam pouring mold. A plurality of first reinforcing ribs are provided on the first support surface;

[0006] Formed side plates, the number of the formed side plates is two. The formed side plates extend upward along the two side edges of the formed bottom plate to form a "匚" shape with an upward opening, and the inner side thereof is a first formed side surface for forming the side surface of the main beam;

[0007] Support plates, the number of the formed side plates is two. The support plates extend horizontally outward along the upper ends of the formed side plates. The upper side of the support plates is a supporting surface, and the supporting surface can be used to support the multi-ribbed formwork shell. The lower side of the support plates is a second support surface, and both second support surfaces are used to abut against the support components below the main beam pouring mold. A plurality of second reinforcing ribs are provided on the second support surface;

[0008] The first connecting hole, there are multiple first connecting holes, the first connecting holes are located at the end face of the forming base plate and the support plate, the first connecting holes of adjacent main beam casting molds are in the same position, and can be connected by fasteners passing through the first connecting holes.

[0009] Furthermore, the molded side plate extends upward to form a retaining edge higher than the supporting surface, and the height of the retaining edge is the same as the thickness of the flange edge of the ribbed mold shell it supports, or the difference between the two is not greater than 10mm.

[0010] Furthermore, the first connecting hole at the end face of the molded base plate passes through the first reinforcing rib therein, and the first connecting hole at the end face of the support plate passes through the second reinforcing rib therein.

[0011] Furthermore, the end face of the molded side plate is provided with an ear plate extending outward, and a first connecting hole is provided through the ear plate.

[0012] Furthermore, the ear plate extends upward and connects to the support plate, and the width of the ear plate increases upward, with its side forming a positioning edge.

[0013] Furthermore, a fifth reinforcing rib is provided on the outer side of the molded side plate.

[0014] Furthermore, the width of the supporting surface is ≥4cm.

[0015] Furthermore, a second connecting hole is provided on the supporting surface, extending vertically.

[0016] A second aspect of this utility model provides a side mold, installed on the aforementioned casting mold for the main beam of prefabricated buildings, the side mold comprising:

[0017] A base plate, wherein a third connecting hole is provided on the base plate, and the third connecting hole can be fixedly connected to the second connecting hole by fasteners;

[0018] The vertical plate extends upward along the edge of the base plate. The inner side of the vertical plate is the second forming side. After installation, the second forming side and the first forming side can transition smoothly. If the forming side plate is provided with a retaining edge, the vertical plate is provided with a groove that matches the shape of the retaining edge.

[0019] A top plate that extends horizontally along the top edge of the vertical plate;

[0020] The third reinforcing rib is arranged vertically and connects the bottom plate, the vertical plate, and the top plate. A fourth connecting hole is provided on the third reinforcing rib at the end. The fourth connecting holes of adjacent side molds are in the same position and can be connected by fasteners passing through the fourth connecting holes.

[0021] A second aspect of this utility model provides a construction method for a casting mold for main beams in prefabricated buildings, comprising the following steps:

[0022] Step 1: Erect the main beam scaffolding and the supporting components required for the formwork. The main beam scaffolding shall include at least three rows of support positions, one high and one low, with the height difference between the support positions being consistent with the height difference between the first support surface and the second support surface.

[0023] Step 2: Based on the distance between the columns, install multiple main beam casting molds onto the main beam scaffolding. The first and second support surfaces of the main beam casting molds abut against the main beam scaffolding. Adjacent main beam casting molds are connected by fasteners passing through the first connection holes.

[0024] Step 3: Install the formwork, with the flange of the formwork located at the edge placed on the supporting surface of the main beam casting mold, and the formwork located in the middle placed on the support assembly;

[0025] Step 4: Tie the reinforcing bars;

[0026] Step 5: Pour concrete and cure it;

[0027] Step Six: After curing and shaping, remove the fasteners, dismantle the main beam scaffolding, support components, formwork, and main beam casting mold, and prepare for reuse.

[0028] Furthermore, if the main beam casting mold is located on the outermost edge of the floor, then a side formwork is installed at the outermost edge, the side formwork comprising:

[0029] A base plate, wherein a third connecting hole is provided on the base plate, and the third connecting hole can be fixedly connected to the second connecting hole by fasteners;

[0030] The vertical plate extends upward along the edge of the base plate. The inner side of the vertical plate is the second forming side. After installation, the second forming side and the first forming side can transition smoothly. If the forming side plate is provided with a retaining edge, the vertical plate is provided with a groove that matches the shape of the retaining edge.

[0031] A top plate that extends horizontally along the top edge of the vertical plate;

[0032] The third reinforcing rib is arranged vertically and connects the bottom plate, the vertical plate, and the top plate. A fourth connecting hole is provided on the third reinforcing rib at the end. The fourth connecting holes of adjacent side molds are in the same position and can be connected by fasteners passing through the fourth connecting holes.

[0033] In step two, the third connecting hole of the side formwork and the second connecting hole of the main beam casting formwork are fixedly connected by fasteners; adjacent side formworks are connected by fasteners passing through the fourth connecting hole.

[0034] The beneficial effects of this utility model are:

[0035] 1. This utility model has high construction efficiency. The mold adopts an integrated molding design, which can be hoisted as a whole after being spliced ​​on the ground, reducing high-altitude operations and improving construction efficiency. In addition, it is fastened through the connection holes to ensure tight joints and avoid grout leakage.

[0036] 2. This utility model is highly adaptable. The mold is of standard length and can be cut as needed to meet the casting requirements of main beams of any span. The width of the supporting surface is not less than 4cm, providing sufficient adjustment space and facilitating on-site construction.

[0037] 3. The structure of this utility model is stable: During installation, one support surface and two second support surfaces are supported by the main beam scaffolding, while the flange edge of the formwork is pressed against the support surface. During construction, it is generally fixed with nails. Therefore, this structure plays a role in fixing the horizontal position of the support plate. During grouting, even if the formed side plate is subjected to lateral force, the support plate can always maintain its current position and prevent the formed side plate from flipping outward. There is no need to set tie rods between the formed side plates, and it will be more convenient to dismantle it later.

[0038] 4. This utility model is environmentally friendly and reusable. The mold and side mold can be reused multiple times, reducing material waste and meeting the requirements of green construction.

[0039] 5. This utility model is easy to install. The side mold can be quickly installed through the connecting holes, which improves efficiency. It can also be cut and adjusted in length as needed, making it widely applicable. Attached Figure Description

[0040] Figure 1 This is a schematic diagram of the main beam casting mold in Example 1 (top-view 3D view).

[0041] Figure 2 This is a structural schematic diagram of the main beam casting mold in Example 1 (3D view from below).

[0042] Figure 3 This is a schematic diagram showing the fit between the main beam casting mold and the mold shell in Example 1 (without timber).

[0043] Figure 4 This is a schematic diagram showing the fit between the main beam casting mold and the mold shell in Example 1 (with timber).

[0044] Figure 5 This is a schematic diagram of the main beam casting mold in Example 2;

[0045] Figure 6 This is a schematic diagram of the main beam casting mold in Example 3 (top-view 3D view).

[0046] Figure 7This is a structural schematic diagram of the main beam casting mold in Example 3 (top-down 3D view).

[0047] Figure 8 This is a schematic diagram of the fit between the main beam casting mold and the mold shell in Example 3 (without timber).

[0048] Figure 9 This is a schematic diagram showing the fit between the main beam casting mold and the mold shell in Example 3 (with timber).

[0049] Figure 10 This is a schematic diagram of the side mold structure in Example 4;

[0050] Figure 11 This is a schematic diagram of the side mold installation in Example 4;

[0051] Figure 12 This is a schematic diagram of the side mold installation in Example 5;

[0052] Figure 13 The construction process in Example 6 Figure 1 ;

[0053] Figure 14 The construction process in Example 6 Figure 2 ;

[0054] Figure 15 The construction process in Example 6 Figure 3 ;

[0055] Figure 16 In Example Six Figure 15 Horizontal view (columns hidden);

[0056] Figure 17 A schematic diagram showing the support of the main beam casting mold for both spans of the formwork.

[0057] Figure 18 for Figure 17 A magnified view of a portion of the image.

[0058] In the picture:

[0059] 100 Main beam casting mold; 101 Formed base plate; 1011 Formed bottom surface; 1012 First support surface; 1013 First reinforcing rib; 102 Formed side plate; 1021 First formed side surface; 1022 Fifth reinforcing rib; 103 Support plate; 1031 Support surface; 1032 Second support surface; 1033 Second reinforcing rib; 104 First connecting hole; 105 Ear plate; 106 Edge retainer; 107 Second connecting hole;

[0060] 200 Side mold; 201 Base plate; 202 Vertical plate; 203 Top plate; 204 Third reinforcing rib; 205 Fourth reinforcing rib; 206 Third connecting hole; 207 Fourth connecting hole;

[0061] 300 formwork

[0062] 400 column

[0063] 500 main beam scaffold

[0064] 600 support component

[0065] 700 wooden square Specific implementation mode

[0066] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention. Embodiment

[0067] As Figure 1-2 shown, a main beam casting mold for prefabricated buildings, with an inverted "U" - shaped cross - section, integrally formed by plastic processing, includes:

[0068] A forming bottom plate 101, with its upper side being a forming bottom surface 1011 for forming the bottom surface of the main beam, and its lower side being a first support surface 1012. The first support surface 1012 is used to abut against the main beam scaffold 500 below the main beam casting mold 100, and a number of first reinforcing ribs 1013 are provided on the first support surface 1012;

[0069] Forming side plates 102, the number of the forming side plates 102 is two. The forming side plates 102 extend upward along the two - side edges of the forming bottom plate 101 to form a "U" - shaped opening upward. Its inner side is a first forming side surface 1021 for forming the side surface of the main beam. A reasonable draft angle, generally 1° - 2°, is provided on the two first forming side surfaces 1021.

[0070] The support plate 103 comprises two molding side plates 102. The support plate 103 extends horizontally outward from the upper end of the molding side plates 102. The upper side of the support plate 103 is a supporting surface 1031, which supports the ribbed mold shell 300. The lower side of the support plate 103 is a second supporting surface 1032. Both second supporting surfaces 1032 are used to abut against the support assembly 600 below the main beam casting mold 100. The second supporting surfaces 1032 are provided with several second reinforcing ribs 1033, including several transverse and longitudinal reinforcing ribs, to strengthen the structure of the support plate 103. The width of the supporting surface 1031 is ≥4cm, because the mold shell... If flanges are used for support, the support width of the formwork 300 should be at least 4cm. This design uses 20cm, therefore, at least 16cm is needed for easy adjustment of the formwork 300's position. The total distance between the two ends of the entire array of formwork 300s on the floor should be at least 32cm for adjustment. If it exceeds 30cm, it can be adjusted by replacing the formwork 300s with different widths. Our standardized design provides formwork 300s in 30cm increments, such as 60cm, 90cm, and 120cm. The formwork 300s are selected appropriately based on the main beam span, ensuring that both sides of the formwork 300 array have at least 4cm of support on the bearing surface 1031 of the support plate 103. Furthermore, the support plate 103 abuts against the top support of the main beam scaffolding 500, leaving sufficient width to facilitate the support of the main beam casting mold 100 itself.

[0071] There are multiple first connecting holes 104. These first connecting holes 104 are located at the end faces of the forming base plate 101, forming side plate 102, and support plate 103. In this design, the first connecting hole 104 at the end face of the forming base plate 101 penetrates the first reinforcing rib 1013 therein, and the first connecting hole 104 at the end face of the support plate 103 penetrates the second reinforcing rib 1033 therein. The first connecting holes 104 of adjacent main beam casting molds 100 are in the same position and can be connected by fasteners passing through the first connecting holes 104. In other embodiments, if the end faces of the forming base plate 101, forming side plate 102, and support plate 103 are solid thick plates, after the connecting hole extends vertically inward from the end face for a certain distance, a groove is cut on the outer side of the thick plate, and the groove communicates with the first connecting hole 104 to facilitate the passage of bolts and fasteners. In practical applications, the end face of the molded side plate 102 is provided with an outwardly extending ear plate 105, and a first connecting hole 104 is provided through the ear plate 105. In practical applications, the ear plate 105 extends upward and connects to the support plate 103. The width of the ear plate 105 increases upward, and its side forms a positioning edge, such as... Figure 18 As shown, the ear and the main beam scaffolding are close together, forming a preliminary positioning.

[0072] The mold is generally of standard length, such as 1200mm, and can be cut to any length as needed, thus meeting the requirements for casting beams of any span. The first connecting hole 104 is arranged along the end face of the forming base plate 101, the forming side plate 102, and the support plate 103 to ensure that the joint of the forming base plate 101 and the forming side plate 102 is tightly connected and there is no leakage of grout during connection.

[0073] During construction, if this plan is implemented... Figure 3 As shown, the first support surface 1012 and the two second support surfaces 1032 are all supported by the main beam scaffolding 500, while the flange edge of the formwork 300 presses against the supporting surface 1031. The flange and the first forming side 1021 are aligned, so there is no need to add timber 700. If the flange edge of the formwork 300 and the first forming side 1021 cannot be aligned, such as... Figure 4 As shown, timber 700 can be added. The timber 700 is cut into a suitable shape to fill the missing rectangle. During construction, it is generally fixed with nails. Therefore, this structure plays a role in fixing the horizontal position of the support plate 103. During grouting, even if the formed side plate 102 is subjected to lateral force, the support plate 103 can always maintain its current position and prevent the formed side plate 102 from flipping outward. It is not necessary to set tie rods between the formed side plates 102 (such as patent CN115126225A A floor slab formwork support beam and a floor slab formwork support component 600). It is also more convenient to dismantle it later.

[0074] In other embodiments, the outer surface of the molded side plate 102 is provided with a fifth reinforcing rib 1022 to improve the structural strength of the molded side plate 102. Example

[0075] like Figure 5 As shown, the difference from Embodiment 1 is that a second connecting hole 107 is provided on the supporting surface 1031, which extends vertically. This second connecting hole 107 is mainly used for installing the side mold 200 as in Embodiments 4 and 5. Example

[0076] like Figure 6-7As shown, the difference from Embodiments 1 and 2 is that the forming side plate 102 extends upward to form a retaining edge 106 higher than the supporting surface 1031. The height of the retaining edge 106 is the same as the thickness of the flange edge of the ribbed mold shell 300 it supports, or the difference between the two is no more than 10mm. In this embodiment, the height of the retaining edge 106 is the same as the thickness of the flange edge of the ribbed mold shell 300 it supports. When installing the mold shell 300, the edge of the flange edge of the mold shell 300 and the first forming side 1021 may not be aligned, requiring the addition of timber 700 later to fill the missing rectangle. However, when processing the timber 700 on site, it is easy for the side of the timber 700 and the first forming side 1021 to not be perfectly coplanar. Therefore, the main beam casting mold 100 itself has an added retaining edge 106, the height of which is the same as the thickness of the flange edge of the ribbed mold shell 300 it supports. Figure 9 As shown, simply fill the gap between the flange edge of the formwork 300 and the retaining edge 106 with timber 700. During on-site fabrication of timber 700, only the width and thickness of the timber 700 need to be considered, without worrying about whether the side of the timber 700 can be perfectly coplanar with the first formed side 1021. This makes fabrication easier and results in a more aesthetically pleasing main beam surface. Furthermore, since the timber 700 only needs to be secured in the gap between the flange edge of the formwork 300 and the retaining edge 106, no additional fixing is required, improving construction efficiency. Figure 8 As shown, the flange edge of the mold shell 300 can also directly abut against the retaining edge 106.

[0077] In other embodiments, if the retaining edge 106 is not provided, the filling with timber 700 is not required, and concrete can be poured directly. After molding, the bottom surface of the main beam will have an additional step surface. Compared with filling with timber, using more concrete is cheaper, easier to construct, and the shape will not be too unsightly. Example

[0078] A building's floor slabs typically have many spans in both the horizontal and vertical directions. Only the outermost main beam requires additional side formwork 200. Traditional side formwork 200 is assembled on-site from wooden planks, which is very inconvenient to set up.

[0079] like Figure 10 As shown, another aspect of this utility model provides a side mold 200, which is made of plastic and integrally molded. The vertical plate 202 includes:

[0080] The base plate 201 is provided with a third connecting hole 206, which can be fixedly connected to the second connecting hole 107 by fasteners.

[0081] Vertical plate 202 extends upward along the edge of bottom plate 201. The inner side of vertical plate 202 is a second forming side. After installation, the second forming side and the first forming side 1021 can smoothly transition. If the forming side plate 102 is provided with a retaining edge 106, then the vertical plate 202 is provided with a groove that matches the shape of the retaining edge 106.

[0082] Top plate 203, which extends horizontally along the top edge of vertical plate 202;

[0083] The third reinforcing rib 204 is vertically arranged and connects the bottom plate 201, the vertical plate 202, and the top plate 203. A fourth connecting hole 207 is provided on the end of the third reinforcing rib 204. The fourth connecting holes 207 of adjacent side molds 200 are aligned, allowing for connection via fasteners passing through the fourth connecting holes 207. The width of the top plate 203 is smaller than that of the bottom plate 201; therefore, the third reinforcing rib 204 is a rectangle that is wider at the top and narrower at the bottom, effectively resisting the lateral forces from the concrete.

[0084] The fourth reinforcing rib 205 is horizontally arranged and connects the vertical plate 202 and the third reinforcing rib 204 to prevent the third reinforcing rib 204 from bending.

[0085] During installation, such as Figure 11 As shown, the third connecting hole 206 of the side formwork 200 and the second connecting hole 107 of the main beam casting mold 100 are connected by fasteners, and the side formwork 200 and the side formwork 200 are connected by the fourth connecting hole 207 to form a stable whole, which is also convenient for construction. Example

[0086] The difference from Embodiment 4 is that when the main beam casting mold 100 is provided with a retaining edge 106, the vertical plate 202 is provided with a corresponding notch, such as... Figure 12 As shown, the shape of the retaining edge 106 and the notch can be matched to ensure the flatness of the main beam surface. Example

[0087] A construction method for casting molds for main beams in prefabricated buildings:

[0088] Taking the main beam casting mold 100 of Embodiment 3 as an example, such as... Figure 13-18 As shown, the construction process includes the following steps:

[0089] Step 1, such as Figure 13 As shown, the support components 600 required for erecting the main beam scaffolding 500 and the formwork 300 are as follows: the main beam scaffolding 500 includes at least three rows of support positions, one high and one low, and the height difference between the support positions is consistent with the height difference between the first support surface 1012 and the second support surface 1032.

[0090] Step Two: Install multiple main beam casting molds 100 on the main beam scaffolding 500. Based on the distance between columns 400, splice them to the required length. Adjacent main beam casting molds 100 are connected via the first connecting hole 104 at the end face of the fastener. The main beam casting molds 100 are reasonably cut according to the actual required length to meet the construction requirements of main beams with any span. The cut-off waste material can be recycled and reprocessed into new molds, avoiding material waste. Figure 14 As shown, the first support surface 1012 and the second support surface 1032 of the main beam casting mold 100 both abut against the main beam scaffolding 500, and the three support surfaces abut against the three support positions with two high and one low.

[0091] Step 3, as follows Figure 15-18 As shown, the mold shell 300 is installed, with the flange edge of the mold shell 300 located at the edge placed on the support surface 1031 of the main beam casting mold 100, and the mold shell 300 located in the middle placed on the support assembly 600. The position of the mold shell 300 is adjusted as needed to ensure that the flange edge of the mold shell 300 overlaps the support surface 1031 by at least 4cm.

[0092] Step 4: Tie the reinforcing bars, including horizontal reinforcing bars, longitudinal reinforcing bars, and top reinforcing bars;

[0093] Step 5: Pour concrete and cure it.

[0094] Step 6: After curing and shaping, remove the fasteners, dismantle the main beam scaffolding 500, support components 600, mold shell 300 and main beam casting mold 100, and prepare for reuse.

[0095] If the main beam casting mold 100 is located on the outermost side of the floor, then in step two, a side mold 200 is installed on the outermost edge of the main beam casting mold 100. The third connecting hole 206 of the side mold 200 and the second connecting hole 107 of the main beam casting mold 100 are connected by fasteners. The side molds 200 and the side molds 200 are connected by the fourth connecting hole 207 to form a stable whole.

[0096] Compared to traditional formwork erection for main beams, this solution eliminates the need for manual on-site erection, resulting in higher efficiency. Multiple main beam casting molds are aligned end-to-end and secured together using bolts through the first connecting holes 104. By appropriately cutting the molds to the required length, the construction requirements for main beams of any span can be met. Furthermore, the molds can be assembled on the ground and then hoisted as a whole, reducing strenuous work for personnel, improving efficiency, and lowering safety hazards. Additionally, the molds are connected with fasteners, preventing grout leakage at the joints. The molds can be reused multiple times, making them relatively environmentally friendly. Figure 17-18As shown, the first support surface 1012 and the two second support surfaces 1032 are all supported by the main beam scaffolding 500, while the flange edge of the formwork 300 presses against the supporting surface 1031. During construction, it is generally fixed with nails. Therefore, this structure plays a role in fixing the horizontal position of the support plate 103. During grouting, even if the formed side plate 102 is subjected to lateral force, the support plate 103 can always maintain its current position, preventing the formed side plate 102 from flipping outwards. This eliminates the need for tie rods between the formed side plates 102, making subsequent dismantling easier. Furthermore, a side formwork 200 is provided, which can be used at the outermost edge of the floor and is secured with bolts for easy assembly and disassembly.

[0097] In summary, the prefabricated main beam casting mold of this utility model reduces the amount of high-altitude work, improves safety, and greatly improves efficiency by using fasteners for assembly. Moreover, it can be reused multiple times, meeting the requirements of modern prefabricated construction.

[0098] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that the above embodiments are only for illustrating the technical concept and characteristics of this utility model, and are intended to enable those skilled in the art to understand and implement the content of this utility model. They should not be used to limit the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A prefabricated building girder pouring mold, characterized in that: The main beam pouring mold (100) is integrally formed by plastic processing, the cross section thereof is inverted "se" shape, and the main beam pouring mold (100) comprises: a forming bottom plate (101), the upper side of the forming bottom plate (101) is a forming bottom surface (1011) for forming the bottom surface of the main beam, and the lower side of the forming bottom plate (101) is a first supporting surface (1012) for abutting against the main beam scaffold (500) below the main beam pouring mold (100), and the first supporting surface (1012) is provided with a plurality of first reinforcing ribs (1013); a forming side plate (102), the number of the forming side plate (102) is two, the forming side plate (102) extends upwards along the two side edges of the forming bottom plate (101) to form an "Fang" shape with the opening upwards, and the inner side of the forming side plate (102) is a first forming side surface (1021) for forming the side surface of the main beam; a supporting plate (103), the number of the supporting plate (103) is two, the supporting plate (103) extends horizontally and outwardly along the upper end of the forming side plate (102), the upper side of the supporting plate (103) is a bearing surface (1031) capable of bearing the dense rib formwork (300), and the lower side of the supporting plate (103) is a second supporting surface (1032) for abutting against the supporting assembly (600) below the main beam pouring mold (100), and the second supporting surface (1032) is provided with a plurality of second reinforcing ribs (1033); a first connecting hole (104), the number of the first connecting hole (104) is multiple, the first connecting hole (104) is located at the end face of the forming bottom plate (101) and the supporting plate (103), the positions of the first connecting holes (104) of adjacent main beam pouring molds (100) are consistent, and the first connecting holes (104) can be connected by penetrating the first connecting holes (104) through fasteners.

2. The prefabricated building girder pouring mold according to claim 1, characterized in that: The forming side plate (102) extends upwards to form a stop edge (106) higher than the bearing surface (1031), the height of the stop edge (106) is consistent with the thickness of the flange edge of the dense rib formwork (300) carried or the difference between the two is not greater than 10 mm.

3. The prefabricated building girder pouring mold according to claim 1, characterized in that: The first connecting hole (104) at the end face of the forming bottom plate (101) penetrates the first reinforcing rib (1013) at the position, and the first connecting hole (104) at the end face of the supporting plate (103) penetrates the second reinforcing rib (1033) at the position.

4. The prefabricated building girder pouring mold according to claim 1, characterized in that: The end face of the forming side plate (102) is provided with an ear plate (105) extending to the outside, and the ear plate (105) is provided with a first connecting hole (104) penetrating the ear plate (105).

5. The prefabricated building girder pouring mold according to claim 4, characterized in that: The ear plate (105) extends upwards and is connected with the supporting plate (103), the width of the ear plate (105) is wider upwards, and the side edge of the ear plate (105) forms a positioning edge.

6. The prefabricated building girder pouring mold according to claim 1, characterized in that: The outer side of the forming side plate (102) is provided with a fifth reinforcing rib (1022).

7. The prefabricated building girder pouring mold according to claim 1, characterized in that: The width of the bearing surface (1031) is greater than or equal to 4 cm.

8. The prefabricated building girder pouring mold according to any one of claims 1-7, characterized in that: The bearing surface (1031) is provided with a second connecting hole (107) penetrating up and down.

9. A side form (200) installed on the fabricated building girder pouring mold according to claim 8, characterized in that: The side mold (200) comprises: A bottom plate (201) is provided with a third connecting hole (206) capable of being fixedly connected with the second connecting hole (107) through a fastener; A vertical plate (202) extends upward along the edge of the bottom plate (201), and the inner side of the vertical plate (202) is a second shaped side capable of smoothly transitioning with the first shaped side (1021) after installation. If the shaped side plate (102) is provided with a baffle (106), a groove matching the shape of the baffle (106) is arranged on the vertical plate (202); A top plate (203) extends horizontally along the top edge of the vertical plate (202); A third reinforcing rib (204) is arranged vertically and connects the bottom plate (201), the vertical plate (202) and the top plate (203). The third reinforcing rib (204) at the end is provided with a fourth connecting hole (207), and the fourth connecting holes (207) of the adjacent side molds (200) are located in the same position and can be connected by penetrating the fourth connecting holes (207) through a fastener.

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