Prefabricated windowsill coping and forming die thereof

Abstract

The utility model discloses a prefabricated windowsill coping and a forming die thereof. The prefabricated windowsill coping comprises a first building block and a second building block, the first building block is a U-shaped structural body, and a first cavity is formed in the U-shaped structural body; the second building block is of a three-step type hollow structure, and a second cavity is formed in the three-step type hollow structure; the multiple second building blocks are sequentially built at the windowsill position on a wall according to the principle that the inner portions are high and the outer portions are low, the first building blocks are built at the two ends of the multiple built second building blocks correspondingly, and first cavities of the first building blocks and second cavities of the second building blocks are sequentially communicated to form a windowsill board forming cavity. Windowsill coping steel bars are bound in the windowsill board forming cavity, and concrete is poured in the windowsill board forming cavity to form the windowsill board. The construction progress of the prefabricated windowsill coping is fast, the structure is self-waterproof, and windowsill leakage can be prevented.

Description

Technical Field

[0001] The utility model relates to a prefabricated window sill capping, in particular to a prefabricated window sill capping and a forming mould thereof. Background Art

[0002] During the construction of building projects, the exterior windows of masonry walls are designed with window sills, and the acceptance specifications for masonry require that the window sills must extend into the masonry. The construction process of traditional window sills is as follows: after the window sill is built, the formwork is cast in situ to form the window sill, and after the window sill concrete is completely solidified, the wall above the window sill is built. In such construction, it is inevitable that the masonry will be interrupted due to process insertion (including the installation of the top steel bar, the installation of the formwork, the pouring of concrete, etc.) and technical breaks (the maintenance of the top concrete), which seriously affects the progress of masonry construction.

[0003] In addition, the traditional window sill capping has a rectangular cross-section. To reduce leakage, the window sill capping surface is usually sloped 10% toward the outside. However, due to the different technical skills of the construction workers, it is difficult to ensure the quality of the slope, and reverse slopes and "W-shaped" slopes often occur, causing greater leakage risks. According to the technical requirements, the window sill capping needs to extend into the masonry walls on both sides. If the part extending into the masonry wall is also a sloped surface, the space between the upper masonry wall and the capping needs to be filled with mortar. The mortar on the slope is not easy to be full, which will cause new leakage risks. Utility Model Content

[0004] The technical problem to be solved by the utility model is that, in view of the shortcomings that the existing window sill capping construction seriously affects the progress of masonry construction and that slope waterproofing may cause new leakage, the utility model provides a prefabricated window sill capping and a forming mold thereof which can improve the construction progress and has a self-waterproof structure and can prevent leakage.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A prefabricated window sill capping comprises a first building block and a second building block, wherein:

[0007] The first building block is a U-shaped structure, and the U-shaped structure has a first cavity;

[0008] The second building block is a three-step stepped hollow structure, and the three-step stepped hollow structure has a second cavity therein;

[0009] Multiple second building blocks are built in sequence at the window sill position on the wall according to the principle of high inside and low outside, and the first building blocks are built at both ends of the multiple second building blocks. The first building blocks are connected with the second cavity of the second building blocks in sequence to form a window sill forming cavity. The window sill top steel bars are tied in the window sill forming cavity and concrete is poured to form a window sill.

[0010] When the wall is built to the bottom elevation of the window sill, the first block and the second block of the utility model can be built to the window sill position of the wall, and the installation position of the first and second blocks is ensured to be accurate and the mortar joints are full. Then, after the first block and the second block are built, the walls on both sides of the window are built. After the wall strength is stabilized, the window sill top steel bars are tied in the window sill forming cavity formed by the connection of the first block and the second block, and concrete is poured to form the window sill, thus completing the construction of the window sill top. In this way, the window sill top is constructed without the need for on-site formwork and formwork removal, and the window sill top is built at the same time as the secondary structure masonry (wall), which improves the cross-construction efficiency between the processes, saves construction costs, and effectively avoids the shortcomings of the traditional window sill top construction, such as slow progress and complicated operation. The utility model adopts a three-step stepped hollow structure, and a three-step platform structure is formed after concrete is poured inside it. When the lower end of the three-step platform structure is installed outward, the structure can be self-waterproof, effectively reducing the risk of leakage.

[0011] Preferably, the width of the U-shaped structure is equal to the thickness of the wall, and the length of the U-shaped structure is not less than 200 mm. When the first building block is built in the wall, the first building block is flush with the wall, ensuring the beauty of the wall. At the same time, the length of the U-shaped structure is not less than 200 mm, which can meet the requirement in the masonry specification that the window sill cap should extend into the masonry wall.

[0012] Preferably, the inner side and the outer side of the U-shaped structure are of equal height, so as to avoid the need to fill the space between the upper masonry wall and the window sill cap with mortar, thereby avoiding the creation of new leakage risks.

[0013] Preferably, the width of the three-step stepped hollow structure is equal to the thickness of the wall.

[0014] Preferably, the three-step stepped hollow structure includes a first step, a second step and a third step which are arranged in sequence, and the heights of the first step, the second step and the third step increase in sequence. After the window sill is formed, the window sill is the same height as the second step, and together they serve as the installation base for the external window.

[0015] Preferably, the height difference between adjacent steps of the first step, the second step and the third step is 10 mm.

[0016] Based on the same inventive concept, the utility model also provides a molding die for the prefabricated window sill top, which comprises a first block molding die and a second block molding die, wherein:

[0017] The first block forming mold comprises a first outer mold and a first inner mold, the first outer mold comprises a first outer bottom plate, a first outer vertical plate, a second outer vertical plate and a first top plate, the first outer bottom plate, the first outer vertical plate, the second outer vertical plate and the first top plate are surrounded to form a rectangular frame; the first inner mold comprises a first inner bottom plate, a first inner vertical plate and a second inner vertical plate, the first inner vertical plate and the second inner vertical plate are arranged opposite to each other, the two ends of the first inner bottom plate are respectively connected to the first inner vertical plate and the second inner vertical plate, so that the first inner bottom plate, the first inner vertical plate and the second inner vertical plate are connected to form a U shape; when the first block is formed, the first inner mold is placed in the first outer mold, and the free ends of the first inner vertical plate and the second inner vertical plate are abutted against the first top plate, and a first block forming space is formed between the first outer mold and the first inner mold;

[0018] The second block forming mold includes a second outer mold and a second inner mold, the second outer mold includes a second outer bottom plate, a third outer vertical plate, a fourth outer vertical plate and a three-step plate, the third outer vertical plate and the fourth outer vertical plate are arranged opposite to each other and are respectively connected to one end of the second outer bottom plate, the high end of the three-step plate is connected to the third outer vertical plate, and the low end is connected to the fourth outer vertical plate; the second inner mold includes a second inner bottom plate, a third inner vertical plate, a fourth inner vertical plate and two-step plates, the third inner vertical plate and the fourth inner vertical plate are arranged opposite to each other and are respectively connected to one end of the second inner bottom plate, the high end of the two-step plate is connected to the third inner vertical plate, and the low end is connected to the fourth inner vertical plate; when the second block is formed, the second inner mold is placed in the second outer mold, and the third inner vertical plate and the fourth inner vertical plate are arranged parallel to the third outer vertical plate and the fourth outer vertical plate, the second step plate of the two-step plate is abutted against the second step plate of the three-step plate, and a second block forming space is formed between the second outer mold and the second inner mold.

[0019] Preferably, one side of the first inner bottom plate, the first inner vertical plate and the second inner vertical plate are respectively connected to the first connecting plate, and a first handle is provided on the first connecting plate to facilitate construction.

[0020] Preferably, one side of the second inner bottom plate, the third inner vertical plate, the fourth inner vertical plate and the two-step plate are respectively connected to the second connecting plate, and a second handle is provided on the second connecting plate to facilitate construction.

[0021] Preferably, the first block forming mold and the second block forming mold are respectively made of 2mm thick Q235 grade steel plate, so that the forming mold of the utility model is easy to obtain materials, light weight, small adsorption force, easy demoulding, tight joints, and high turnover times.

[0022] Compared with the prior art, the beneficial effects of the utility model are:

[0023] 1. The first and second blocks of the utility model are formed at one time when the wall is built, which reduces the procedures of supporting and removing the formwork, saves labor and material investment, and avoids the poor wall flatness caused by common formwork leakage and subsequent leakage risks caused by loose filling of gaps in the outer window frame and inverted slopes of window eyebrows and window sills.

[0024] 2. The utility model reduces the interruption of masonry caused by the interlacing of working procedures and technical breaks due to the traditional process of cast-in-place top pressing, speeds up the construction progress, shortens the construction period and reduces the construction cost.

[0025] 3. The external window of the utility model is completely installed on the second step of the second building block. Since the third step located on the inner side is higher than the second step and the first step located on the outer side is lower than the second step, rainwater from the outside cannot penetrate into the inside of the window through the second building block, which effectively solves the leakage problem at the window and ensures the construction quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 This is a front view of the prefabricated window sill top of the utility model in use.

[0028] Figure 2 This is a cross-sectional view of the prefabricated window sill top of the utility model in use.

[0029] Figure 3 This is the three-dimensional structure diagram of the first building block.

[0030] Figure 4 This is the three-dimensional structure diagram of the second building block.

[0031] Figure 5 This is a three-dimensional structural diagram of the first building block forming mold in an exploded state.

[0032] Figure 6 This is a three-dimensional structural diagram of the exploded state of the second building block forming mold.

[0033] Figure 7 This is a structural diagram of the molding state of the second building block molding mold. DETAILED DESCRIPTION

[0034] The present invention is further described below in conjunction with specific preferred embodiments, but the protection scope of the present invention is not limited thereby.

[0035] In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0036] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] See also Figure 1 - Figure 4 The prefabricated window sill capping of the utility model comprises a first block 1 and a second block 2, wherein:

[0038] The first building block 1 is a U-shaped structure having a first cavity 11 therein, and the inner side and the outer side of the U-shaped structure are of equal height, the width is equal to the thickness of the wall 3, and the length is not less than 200 mm;

[0039] The second building block 2 is a three-step stepped hollow structure, the three-step stepped hollow structure has a second cavity 21, and the width of the three-step stepped hollow structure is equal to the thickness of the wall 3;

[0040] Multiple second building blocks 2 are built in sequence at the window sill positions on the wall 3 according to the principle of high inside and low outside, and the first building blocks 1 are built at both ends of the multiple second building blocks 2. The first building blocks 1 are respectively connected with the first cavity 11 of the first building block 1 and the second cavity 21 of the second building block 2 in sequence to form a window sill forming cavity 7. The window sill top steel bars are tied in the window sill forming cavity and concrete is poured to form a window sill.

[0041] The three-step stepped hollow structure includes a first step 22, a second step 23 and a third step 24 which are arranged in sequence. The heights of the first step 22, the second step 23 and the third step 24 increase in sequence. After the window sill is formed, the window sill is at the same height as the second step 23, and together they serve as the installation base of the outer window 6.

[0042] In this embodiment, the height difference between adjacent steps of the first step 22, the second step 23, and the third step 24 is 10 mm.

[0043] See also Figure 5 - Figure 7 The present invention provides a prefabricated window sill top forming mold according to an embodiment of the present invention, which includes a first block forming mold 4 and a second block forming mold 5, wherein:

[0044] The first block forming mold 4 includes a first outer mold 41 and a first inner mold 42. The first outer mold 41 includes a first outer bottom plate 411, a first outer vertical plate 412, a second outer vertical plate 413 and a first top plate 414. The first outer bottom plate 411, the first outer vertical plate 412, the second outer vertical plate 413 and the first top plate 414 are surrounded to form a rectangular frame; the first inner mold 42 includes a first inner bottom plate 421, a first inner vertical plate 422, a second inner vertical plate 423 and a first connecting plate 424. The first inner vertical plate 422 and the second inner vertical plate 423 are arranged opposite to each other. The two ends of the first inner bottom plate 421 are respectively connected to the first inner vertical plate 4 22, the second inner vertical plate 423 is connected so that the first inner bottom plate 421, the first inner vertical plate 422 and the second inner vertical plate 423 are connected to form a U shape, and one side of the first inner bottom plate 421, the first inner vertical plate 422 and the second inner vertical plate 423 are respectively connected to the first connecting plate 424, and the first connecting plate 424 is provided with a first handle 4241; when the first building block 1 is formed, the first inner mold 42 is placed in the first outer mold 41, and the free ends of the first inner vertical plate 422 and the second inner vertical plate 423 are in contact with the first top plate 414, and a first building block forming space is formed between the first outer mold 41 and the first inner mold 42;

[0045] The second block forming mold 5 includes a second outer mold 51 and a second inner mold 52, the second outer mold 51 includes a second outer bottom plate 511, a third outer vertical plate 512, a fourth outer vertical plate 513 and a three-step plate 514, the third outer vertical plate 512 and the fourth outer vertical plate 513 are arranged opposite to each other and are respectively connected to one end of the second outer bottom plate 511, the high end of the three-step plate 514 is connected to the third outer vertical plate 512, and the low end is connected to the fourth outer vertical plate 513; the second inner mold 52 includes a second inner bottom plate 521, a third inner vertical plate 522, a fourth inner vertical plate 523, a two-step plate 524 and a second connecting plate 525, the third inner vertical plate 522 and the fourth inner vertical plate 523 are arranged opposite to each other and are respectively connected to one end of the second inner bottom plate 521, the two-step plate The high end of 524 is connected to the third inner vertical plate 522, and the low end is connected to the fourth inner vertical plate 523. One side of the second inner bottom plate 521, the third inner vertical plate 522, the fourth inner vertical plate 523 and the two-step plate 524 are respectively connected to the second connecting plate 525, and the second connecting plate 525 is provided with a second handle 5251; when the second building block 2 is formed, the second inner mold 52 is placed in the second outer mold 51, and the third inner vertical plate 522 and the fourth inner vertical plate 523 are arranged in parallel with the third outer vertical plate 512 and the fourth outer vertical plate 513, the second step plate 5242 of the two-step plate 524 is abutted against the second step plate 5142 of the three-step plate 514, and a second building block forming space 53 is formed between the second outer mold 51 and the second inner mold 52.

[0046] In this embodiment, the first block forming mold 4 and the second block forming mold 5 are respectively made of Q235 grade steel plates with a thickness of 2 mm. Therefore, the forming mold of the utility model is easy to obtain materials, light in weight, small in adsorption force, easy to demould, with tight joints and high turnover times.

[0047] The specific process flow of the utility model is as follows: in the preparation stage of the window sill top construction, the size drawings of the first and second building blocks and their forming molds are designed by using BIM technology according to the construction drawings and specification requirements, and they are processed and manufactured. The material requirements are: 2mm thick Q235 grade steel plate is used for processing and manufacturing; the size of the first building block forming mold 4 is 290mm wide (same wall thickness) × 100mm high × 250mm long (the length can be implemented according to the requirements of the local technical regulations for the prevention and control of common quality problems, and generally should not be less than 200mm), and the size of the second building block forming mold 5 is 290mm wide (same wall thickness) × 135mm, 115mm, 100mm high × 250mm long from the inside to the outside of the wall, and the thickness is 20mm; the first and second building blocks are prefabricated using C20 concrete with steel wire mesh, with a curing age of 14d, and the thickness of the prefabricated first and second building blocks is 20mm, and the size is 290mm wide × 100mm high × 250mm long with a wall thickness of 250mm. After the wall is built to the bottom elevation of the window sill, the first and second blocks are built at the window sill position, and the installation positions of the first and second blocks are ensured to be accurate and the mortar joints are full. After the first and second blocks are built, the walls on both sides of the window are built. After the wall strength is stable, the window sill top steel bars are tied in the window sill forming cavity formed by the first and second blocks, and concrete is poured to form the window sill.

[0048] In short, the process flow of the utility model is as follows: processing and manufacturing of the first and second building blocks forming molds → prefabrication of the first and second building blocks → maintenance → laying of the first and second building blocks → tying of window sill top steel bars → pouring of window sill top concrete and maintenance.

[0049] The above is only a specific implementation scheme of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the field can make many possible changes and modifications to the technical scheme of the utility model by using the technical content disclosed above without departing from the scope of the technical scheme of the utility model, or modify it into an equivalent embodiment of equivalent changes. Therefore, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the utility model without departing from the content of the technical scheme of the utility model shall fall within the protection scope of the technical scheme of the utility model.

Claims

1. A prefabricated window sill capping, comprising a first building block and a second building block, characterized in that: The first building block is a U-shaped structure, and the U-shaped structure has a first cavity; The second building block is a three-step stepped hollow structure, and the three-step stepped hollow structure has a second cavity therein; Multiple second building blocks are built in sequence at the window sill position on the wall according to the principle of high inside and low outside, and the first building blocks are built at both ends of the multiple second building blocks. The first building blocks are connected with the second cavity of the second building blocks in sequence to form a window sill forming cavity. The window sill top steel bars are tied in the window sill forming cavity and concrete is poured to form a window sill.

2. The prefabricated window sill capping according to claim 1, characterized in that: The width of the U-shaped structure is equal to the thickness of the wall, and the length of the U-shaped structure is not less than 200 mm.

3. The prefabricated window sill capping according to claim 1, characterized in that: The inner side and the outer side of the U-shaped structure are of equal height.

4. The prefabricated window sill capping according to claim 1, characterized in that: The width of the three-step stepped hollow structure is equal to the thickness of the wall.

5. The prefabricated window sill capping according to claim 1, characterized in that: The three-step stepped hollow structure includes a first step, a second step and a third step which are arranged in sequence. The heights of the first step, the second step and the third step are increased in sequence. After the window sill is formed, the window sill is at the same height as the second step and they together serve as the installation base for the exterior window.

6. The prefabricated window sill capping according to claim 5, characterized in that: The height difference between adjacent steps of the first step, the second step and the third step is 10 mm.

7. A forming mold for a prefabricated window sill capping as claimed in any one of claims 1 to 6, comprising a first block forming mold and a second block forming mold, characterized in that: The first block forming mold comprises a first outer mold and a first inner mold, the first outer mold comprises a first outer bottom plate, a first outer vertical plate, a second outer vertical plate and a first top plate, the first outer bottom plate, the first outer vertical plate, the second outer vertical plate and the first top plate are surrounded to form a rectangular frame; the first inner mold comprises a first inner bottom plate, a first inner vertical plate and a second inner vertical plate, the first inner vertical plate and the second inner vertical plate are arranged opposite to each other, the two ends of the first inner bottom plate are respectively connected to the first inner vertical plate and the second inner vertical plate, so that the first inner bottom plate, the first inner vertical plate and the second inner vertical plate are connected to form a U shape; when the first block is formed, the first inner mold is placed in the first outer mold, and the free ends of the first inner vertical plate and the second inner vertical plate are abutted against the first top plate, and a first block forming space is formed between the first outer mold and the first inner mold; The second block forming mold includes a second outer mold and a second inner mold, the second outer mold includes a second outer bottom plate, a third outer vertical plate, a fourth outer vertical plate and a three-step plate, the third outer vertical plate and the fourth outer vertical plate are arranged opposite to each other and are respectively connected to one end of the second outer bottom plate, the high end of the three-step plate is connected to the third outer vertical plate, and the low end is connected to the fourth outer vertical plate; the second inner mold includes a second inner bottom plate, a third inner vertical plate, a fourth inner vertical plate and two-step plates, the third inner vertical plate and the fourth inner vertical plate are arranged opposite to each other and are respectively connected to one end of the second inner bottom plate, the high end of the two-step plate is connected to the third inner vertical plate, and the low end is connected to the fourth inner vertical plate; when the second block is formed, the second inner mold is placed in the second outer mold, and the third inner vertical plate and the fourth inner vertical plate are arranged parallel to the third outer vertical plate and the fourth outer vertical plate, the second step plate of the two-step plate is abutted against the second step plate of the three-step plate, and a second block forming space is formed between the second outer mold and the second inner mold.

8. The forming mold for prefabricated window sill capping according to claim 7, characterized in that: One side of the first inner bottom plate, the first inner vertical plate and the second inner vertical plate are respectively connected to the first connecting plate, and a first handle is arranged on the first connecting plate.

9. The forming mold for prefabricated window sill capping according to claim 7, characterized in that: One side of the second inner bottom plate, the third inner vertical plate, the fourth inner vertical plate and the two-step plate are respectively connected to the second connecting plate, and a second handle is arranged on the second connecting plate.

10. The forming mold for the prefabricated window sill capping according to claim 7, characterized in that: The first block forming mold and the second block forming mold are respectively made of Q235 grade steel plates with a thickness of 2 mm.

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