Prefabricated window sill mounting node structure for fabricated building

By using a combination of sealing and connecting components in prefabricated buildings, the problem of sealing between the window sill and the wall is solved, achieving waterproofing and convenient installation of the windows.

CN223739232UActive Publication Date: 2025-12-30CSCEC STRAIT CONSTR & DEV +1
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Patent Information

Application Number
CN202520382239.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-06
Publication Date
2025-12-30
Estimated Expiration
2035-03-06

AI Technical Summary

Technical Problem

In existing prefabricated buildings, the installation joint structure of window sills has poor sealing, which makes windows prone to water leakage.

Method used

The structure employs a combination of sealing and connecting components, including a gasket and a wedge groove. The wedge block is driven by bolts to engage with the wedge groove, ensuring that the sealing surface of the gasket is tightly fitted to the wall and window sill. Glass glue is used to enhance the stability of the connection.

Benefits of technology

It achieves a tight connection between the window sill and the wall, improves the sealing effect, prevents water leakage, and the installation process is simple and convenient.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223739232U_ABST
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Abstract

The utility model discloses a prefabricated window board mounting node structure for a fabricated building, which comprises a wall body and a window board body, a connecting mechanism is arranged between the wall body and the window board body, and the connecting mechanism is convenient for mounting a prefabricated window board of the fabricated building; the connecting mechanism comprises a sealing assembly and a connecting assembly, the sealing assembly is arranged between the wall body and the window board body, and the connecting assembly is arranged on the window board body. The wedge-shaped block is pushed through rotation of the bolt, the wedge-shaped block is in butt joint with the wedge-shaped groove, along with deep embedding of the wedge-shaped block into the wedge-shaped groove, under the action of extrusion force, the first sealing face and the second sealing face of the sealing gasket are tightly attached to the wall body and the window board body, installation is convenient, and the sealing effect is good. And the sealing effect of the combined part of the window board body and the wall body is good.
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Description

Technical Field

[0001] This utility model relates to the field of prefabricated buildings, specifically a prefabricated window sill installation node structure for prefabricated buildings. Background Technology

[0002] With the continuous progress and development of modern industrialization, prefabricated buildings have been promoted and applied. Prefabricated buildings involve assembling precast steel structural components such as beams, columns, and slabs on the construction site. However, existing prefabricated building windows do not involve the installation of window sills, leading to potential leaks later on. A search of the patent office database reveals that publication number CN215056534U discloses a prefabricated window sill installation node structure for prefabricated buildings, including an upper window sill, a lower window sill, left and right window sills, and a support bracket. The support bracket is fixedly mounted on the exterior wall panel, and the lower window sill is horizontally fixed to the support bracket. The left and right window sills are symmetrically arranged at the left and right ends of the lower window sill, and the upper window sill is fixedly arranged at the upper end of the left and right window sills. The upper window sill, lower window sill, and left and right window sills cooperate to form a closed window sill structure, which solves the installation problem of window sills in large-scale assembly. The installation is simple and avoids water leakage from the windows. The lower window sill is supported by fixing angle steel to the outer wall panel. Then the left and right window sills and the upper window sill are arranged on the lower window sill in sequence. This not only shapes the exterior wall of the prefabricated building, but also, most importantly, prevents water leakage from the windows. However, the sealing of the connection with the wall is not good and there is room for improvement.

[0003] Therefore, it is necessary to propose a prefabricated window sill installation node structure for prefabricated buildings. Utility Model Content

[0004] The purpose of this utility model is to provide a prefabricated window sill installation node structure for prefabricated buildings, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A prefabricated window sill installation node structure for prefabricated buildings includes a wall and a window sill body, with a connection mechanism between the wall and the window sill body to facilitate the installation of the prefabricated window sill in the prefabricated building; the connection mechanism includes a sealing component and a connecting component, the sealing component being disposed between the wall and the window sill body, and the connecting component being disposed on the window sill body.

[0007] Preferably, the sealing assembly includes a sealing gasket, which is laid at the junction of the wall and the window sill body.

[0008] Preferably, the sealing gasket has a first sealing surface on its side and a second sealing surface on its top, and both the first and second sealing surfaces have adhesive holes.

[0009] Preferably, the connecting assembly includes a countersunk hole, a guide groove, and a wedge groove. The countersunk hole is located at the top end of the windowsill body away from the wall, the guide groove is located at the bottom wall of the top of the windowsill body, and the wedge groove is located on the inner side of the wall.

[0010] Preferably, a bolt penetrating the window sill body is installed in the internal thread of the countersunk hole. A connecting seat is rotatably installed at the end of the bolt near the wall, and an elastic plate and a flat washer are respectively fitted at the end of the bolt away from the connecting seat. The elastic plate is arranged in a spiral structure.

[0011] Preferably, a wedge-shaped block is installed on the connecting seat, the wedge-shaped block fits into the wedge-shaped groove, a guide post is rotatably installed on the inner wall of the wedge-shaped block, and a limiting piece is installed at both the upper and lower ends of the guide post.

[0012] Preferably, a drainage groove is provided on the top of the windowsill body.

[0013] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Beneficial effects

[0014] By laying a sealing gasket at the junction of the wall and the window sill, and then using a tool to drive the bolt to rotate, the bolt rotation pushes the wedge block, causing the wedge block to engage with the wedge groove. As the wedge block is deeply embedded into the wedge groove, under the action of extrusion force, the first and second sealing surfaces of the sealing gasket are tightly fitted to the wall and the window sill. This not only makes installation convenient, but also provides a good sealing effect at the junction of the window sill and the wall. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a schematic diagram of the installation of the connection components of this utility model;

[0017] Figure 3 This is a schematic diagram of the sealing gasket structure of this utility model. Figure 1 ;

[0018] Figure 4 This is a schematic diagram of the sealing gasket structure of this utility model. Figure 2 ;

[0019] Figure 5 This is a schematic diagram of the connecting component of this utility model. Figure 1 ;

[0020] Figure 6 This is a schematic diagram of the connecting component of this utility model. Figure 2 .

[0021] In the diagram: 1. Wall; 2. Window sill body; 3. Sealing gasket; 4. First sealing surface; 5. Second sealing surface; 6. Countersunk hole; 7. Bolt; 8. Connecting seat; 9. Wedge block; 10. Guide post; 11. Guide groove; 12. Wedge groove; 13. Elastic sheet; 14. Flat washer; 15. Drain groove; 16. Limiting piece; 17. Adhesive hole; 100. Sealing assembly; 200. Connecting assembly; 300. Connecting mechanism. Detailed Implementation

[0022] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0023] like Figures 1-6 ;

[0024] A prefabricated window sill installation node structure for prefabricated buildings includes a wall 1 and a window sill body 2. A connecting mechanism 300 is provided between the wall 1 and the window sill body 2. The connecting mechanism 300 facilitates the installation of prefabricated window sills in prefabricated buildings. The connecting mechanism 300 includes a sealing component 100 and a connecting component 200. The sealing component 100 is disposed between the wall 1 and the window sill body 2, and the connecting component 200 is disposed on the window sill body 2. A sealing gasket is laid at the junction of the wall and the window sill body. A tool is used to drive a bolt to rotate, and the bolt rotation pushes a wedge block so that the wedge block is aligned with the wedge groove. As the wedge block is deeply embedded into the wedge groove, under the action of extrusion force, the sealing gasket is tightly fitted to the wall and the window sill body. This not only facilitates installation but also provides a good sealing effect at the junction of the window sill body and the wall.

[0025] Furthermore, the sealing assembly 100 includes a sealing gasket 3, which is laid at the junction of the wall 1 and the window sill body 2. Under the action of extrusion, the first sealing surface 4 and the second sealing surface 5 of the sealing gasket 3 are tightly fitted to the wall 1 and the window sill body 2, respectively. This not only makes installation convenient, but also provides a good sealing effect at the junction of the window sill body 2 and the wall 1. The side of the sealing gasket 3 is provided with a first sealing surface 4, and the top of the sealing gasket 3 is provided with a second sealing surface 5. Both the first sealing surface 4 and the second sealing surface 5 are provided with glue holes 17, which are filled with glass glue. The glass glue further connects the wall 1, the sealing gasket 3 and the window sill body 2, increasing the stability of the connection.

[0026] Furthermore, the connecting assembly 200 includes a countersunk hole 6, a guide groove 11, and a wedge groove 12. The countersunk hole 6 is located at the top end of the window sill body 2 away from the wall 1, and is used to connect bolts 7. The guide groove 11 is located on the bottom wall of the top of the window sill body 2, and is used to guide the guide post 10 and the limiting piece 16 to slide, and to limit the limiting piece 16 after it rotates, preventing the guide post 10 from disengaging from the guide groove 11. The wedge groove 12 is located on the inner side of the wall 1, and is used for wedge blocks 9. The wedge-shaped block 9 is embedded with a larger angle than the wedge-shaped groove 12. A bolt 7, penetrating the window sill body 2, is installed in the countersunk hole 6 with an internal thread. Rotating the bolt 7 pushes the connecting seat 8 and the wedge-shaped block 9. The end of the bolt 7 closest to the wall is rotatably mounted on the connecting seat 8, which supports the wedge-shaped block 9. A bearing is mounted on the surface of the connecting seat 8 corresponding to the bolt 7, and the end of the bolt 7 corresponding to the bearing has a smooth surface. The smooth end of the bolt 7 is interference-fitted with the bearing mounted on the connecting seat 8, allowing the bolt 7 to rotate relative to the connecting seat 8. This facilitates the movement and pushing of the connecting seat 8. An elastic plate 13 and a flat washer 14 are respectively fitted onto the end of the bolt 7 furthest from the connecting seat 8. The elastic plate 13 is arranged in a spiral structure. After the bolt 7 is tightened, the end of the bolt 7, in conjunction with the stepped portion of the countersunk hole 6, compresses the elastic plate 13 and the flat washer 14, effectively preventing the bolt 7 from loosening. A wedge-shaped block 9 is installed on the connecting seat 8, deeply embedded in the wedge-shaped groove 12. Under the action of the compressive force, the sealing gasket 3 is tightly fitted to the wall 1 and the window sill body 2. The wedge-shaped block 9 and the wedge... The wedge 12 fits into the guide post 10, which is rotatably installed on the inner wall of the wedge block 9. The upper and lower ends of the guide post 10 are equipped with limiting pieces 16. The guide post 10 and the limiting pieces 16 are used to guide the movement of the wedge block 9. During the sliding process of the guide post 10 and the guide groove 11, the wedge block 9 and the wedge groove 12 are aligned. The top of the window sill body 2 is provided with a drainage groove 15. The drainage groove 15 is located at the top edge of the window sill body 2, and multiple drainage grooves 15 are equidistantly arranged. The drainage groove 15 facilitates the drainage of rainwater collected at the top of the window sill body 2.

[0027] The working principle of this utility model is as follows: A sealing gasket 3 is laid at the junction of the wall 1 and the window sill body 2. The glue hole 17 of the sealing gasket 3 is filled with glass glue. The glass glue further connects the wall 1, the sealing gasket 3, and the window sill body 2, increasing the connection stability. A countersunk hole 6 is opened at the top of the window sill body 2 away from the wall 1. A bolt 7 that penetrates the window sill body 2 is installed in the internal thread of the countersunk hole 6. Then, the bolt 7 is driven to rotate by a tool. As the bolt 7 rotates relative to the connecting seat 8, the bolt 7 pushes the connecting seat 8. The top of the guide post 10 and the limiting piece 16 are inserted into the guide groove 11. Then, the guide post 10 and the limiting piece 16 are rotated, and the bolt 7 moves away from the connecting seat 8. One end of the connector 8 is fitted with an elastic sheet 13 and a flat washer 14. The elastic sheet 13 is arranged in a spiral structure. After the bolt 7 is tightened, the end of the bolt 7 and the stepped part of the countersunk hole 6 squeeze the elastic sheet 13 and the flat washer 14, which can effectively prevent the bolt 7 from loosening. During the sliding process of the guide post 10 and the limiting piece 16 with the guide groove 11, the wedge block 9 and the wedge groove 12 are brought into contact. As the wedge block 9 is deeply embedded into the wedge groove 12, under the action of the extrusion force, the first sealing surface 4 and the second sealing surface 5 of the sealing gasket 3 are tightly attached to the wall 1 and the window sill body 2. This not only makes the installation convenient, but also provides a good sealing effect at the junction of the window sill body and the wall.

[0028] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A prefabricated window sill mounting node structure for fabricated buildings, comprising a wall body (1) and a window sill body (2), characterized in that: a connecting mechanism (300) is arranged between the wall body (1) and the window sill body (2), which facilitates the prefabricated window sill mounting of the fabricated buildings; the connecting mechanism (300) comprises a sealing assembly (100) and a connecting assembly (200), the sealing assembly (100) is arranged between the wall body (1) and the window sill body (2), and the connecting assembly (200) is arranged on the window sill body (2). The sealing assembly (100) comprises a sealing gasket (3) laid on the combined part of the wall body (1) and the window sill body (2). The side of the sealing gasket (3) is provided with a first sealing surface (4), and the top of the sealing gasket (3) is provided with a second sealing surface (5), and the first sealing surface (4) and the second sealing surface (5) are both provided with glue holes (17).

2. The precast window sill mounting joint structure for fabricated building according to claim 1, characterized in that: The connecting assembly (200) comprises a countersunk hole (6), a guide groove (11) and a notched groove (12), the countersunk hole (6) is arranged at the top end of the window sill body (2) away from the wall body (1), the guide groove (11) is arranged at the top end of the window sill body (2), and the notched groove (12) is arranged on the inner side of the wall body (1).

3. The precast window sill mounting joint structure for fabricated buildings according to claim 2, characterized in that: The countersunk hole (6) is screwed with a bolt (7) penetrating the window sill body (2), the end of the bolt (7) close to the wall body is rotatably connected with a connecting seat (8), the end of the bolt (7) away from the connecting seat (8) is respectively sleeved with an elastic sheet (13) and a flat washer (14), and the elastic sheet (13) is arranged in a spiral structure.

4. The precast window sill mounting joint structure for fabricated buildings according to claim 1, characterized in that: The connecting seat (8) is provided with a notched block (9), the notched block (9) is matched with the notched groove (12), the inner wall of the notched block (9) is rotatably connected with a guide column (10), and the upper and lower ends of the guide column (10) are both provided with a limiting sheet (16).

5. The precast window sill mounting joint structure for fabricated building according to claim 4, characterized in that: The top of the window sill body (2) is provided with a drainage groove (15).

6. The precast window sill mounting joint structure for fabricated building according to claim 5, characterized in that: ​ 7. The precast window sill mounting joint structure for fabricated buildings according to claim 1, characterized in that: ​