Prefabricated bay window anti-slurry-leakage pressing groove structure
By using a grooved structure of elastic pressure plate and sealing strip at the connection between the precast bay window and the aluminum formwork, the problems of poor sealing and grout leakage were solved, achieving higher construction quality and efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA CONSTR SECOND ENG BUREAU LTD
- Filing Date
- 2025-06-03
- Publication Date
- 2026-05-15
AI Technical Summary
In existing technologies, the connection between prefabricated bay windows and aluminum formwork has poor sealing performance, making it prone to grout leakage. Furthermore, the lack of an elastic clamping structure cannot compensate for minute gaps, affecting construction quality and efficiency.
The groove structure employs elastic pressure plates and elastic sealing strips, combined with a flow-guiding slope design. By adjusting bolts, a tight fit and concrete flow guidance are achieved. The elastic sealing strips adapt to dynamic pressure to prevent grout leakage.
It improves the sealing and construction quality at the connection between the precast bay window and the cast-in-place wall, prevents grout leakage, enhances structural stability, simplifies installation operations, and improves construction efficiency.
Smart Images

Figure CN224244417U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building construction technology, and more specifically, to a prefabricated bay window anti-leakage grouting groove structure. Background Technology
[0002] In modern building construction, the connection between precast bay windows and cast-in-place walls is a crucial step. To ensure construction quality and prevent concrete leakage, aluminum formwork is typically used to fix the precast bay windows. However, current technologies often use direct bolting or adhesive tape to fix the aluminum formwork to the precast bay windows, but these methods have several problems. When bolting, the aluminum formwork is prone to deformation due to uneven stress, leading to seal failure; the adhesive tape cannot withstand the dynamic pressure of concrete pouring and is prone to falling off; furthermore, the lack of an elastic clamping structure fails to compensate for the small gaps between the formwork and the bay window. These problems severely affect the sealing performance and construction quality at the connection between the precast bay window and the cast-in-place wall. Therefore, an improved structure is needed to solve these problems and improve construction efficiency and quality. Summary of the Invention
[0003] The purpose of this utility model is to provide a prefabricated bay window anti-grout leakage groove structure to solve the problems of poor sealing and easy grout leakage at the connection between the prefabricated bay window and the aluminum template in the prior art.
[0004] To achieve the above objectives, the technical solution of this utility model is as follows:
[0005] A prefabricated bay window anti-leakage grouting groove structure includes a bay window body, an aluminum template, a groove assembly, and an elastic pressure plate. The outer edge of the bay window body is provided with an L-shaped groove, and the vertical surface of the L-shaped groove has multiple bolt holes. The aluminum template fits into the L-shaped groove of the bay window body, and through holes are provided on the aluminum template corresponding to the bolt holes. The groove assembly includes an L-shaped pressure plate and an elastic sealing strip. One side of the L-shaped pressure plate is embedded in the L-shaped groove, and the other side of the L-shaped pressure plate is fixedly connected to the aluminum template by adjusting bolts. The elastic sealing strip is located between the L-shaped pressure plate and the aluminum template. The elastic pressure plate is connected to the bay window body by a spring, and the top of the elastic pressure plate contacts the aluminum template and applies a pre-tightening force.
[0006] As an improvement of this utility model, the top of the elastic pressure plate is provided with anti-slip texture, the L-shaped pressure groove is provided with a groove, and the bottom of the elastic pressure plate is connected to the groove by a spring.
[0007] As an improvement of this utility model, the inner side of the L-shaped pressure plate is provided with a flow guiding slope, and the flow guiding slope and the vertical surface of the L-shaped pressure groove form a concrete flow guiding channel.
[0008] As an improvement of this utility model, the fitting surface of the aluminum template is provided with a limiting groove, the inner edge of the L-shaped pressure plate is provided with a slot, the elastic sealing strip is made of silicone, the cross-section of the elastic sealing strip is wavy, and the two sides are respectively embedded in the slot of the L-shaped pressure plate and the limiting groove of the aluminum template.
[0009] As an improvement of this utility model, the adjusting bolt includes a screw and a limiting nut. The screw passes through the through hole of the aluminum template and is threadedly connected to the bolt hole of the bay window body. The limiting nut is located on the outside of the aluminum template and is used to adjust the clamping force of the pressure groove assembly.
[0010] The prefabricated bay window anti-leakage grouting groove structure of this utility model has the following beneficial effects:
[0011] This invention, by incorporating an elastic sealing strip and an elastic pressure plate, effectively compensates for the minute gaps between the formwork and the precast bay window. The wavy cross-section and bidirectional limiting structure of the elastic sealing strip better adapt to the dynamic pressure during concrete pouring, preventing grout leakage and improving sealing performance. The elastic pressure plate features anti-slip textures on its top and is connected to a groove at its bottom via a spring, providing stable pre-tensioning force to the aluminum formwork and preventing deformation due to uneven stress, thereby enhancing the stability of the entire structure and extending its service life. The L-shaped pressure plate has a guide slope on its inner side, forming a concrete flow channel that guides the smooth flow of concrete, preventing air bubbles or voids during pouring and improving construction efficiency and quality. Furthermore, the structure is simple to install and easy to operate, further enhancing construction efficiency. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of this utility model;
[0013] Figure 2 This is a side view of the present invention.
[0014] List of identifiers in attached diagrams:
[0015] 1. Bay window body; 2. Aluminum template; 3. Pressure groove assembly; 5. Elastic pressure plate; 6. Spring; 101. L-shaped pressure groove; 102. Bolt hole; 103. Groove; 201. Through hole; 301. L-shaped pressure plate; 302. Elastic sealing strip; 303. Guide slope; 401. Screw; 402. Limit nut; 501. Anti-slip texture. Detailed Implementation
[0016] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are only for illustrating the present invention and are not intended to limit the scope of the present invention. It should be noted that the terms "front", "rear", "left", "right", "up" and "down" used in the following description refer to the directions in the accompanying drawings, and the terms "inner" and "outer" refer to the directions toward or away from the geometric center of a specific component, respectively.
[0017] Furthermore, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0018] As shown in the figure, this utility model provides a prefabricated bay window anti-leakage grouting groove structure, including a bay window body 1, an aluminum template 2, a groove assembly 3, and an elastic pressure plate 5. The outer edge of the bay window body 1 is provided with an L-shaped groove 101. The vertical surface of the L-shaped groove 101 is provided with multiple bolt holes 102. The aluminum template 2 fits into the L-shaped groove 101 of the bay window body 1. The aluminum template 2 is provided with through holes 201 corresponding to the bolt holes 102. The groove assembly 3 includes an L-shaped pressure plate 301 and an elastic sealing strip 302. One side of the L-shaped pressure plate 301 is embedded in the L-shaped groove 101, and the other side of the L-shaped pressure plate 301 is fixedly connected to the aluminum template 2 by adjusting bolts. The elastic sealing strip 302 is provided between the L-shaped pressure plate 301 and the aluminum template 2. The elastic pressure plate 5 is connected to the bay window body 1 by a spring 6. The top of the elastic pressure plate 5 contacts the aluminum template 2 and applies a pre-tightening force.
[0019] The elastic pressure plate 5 of this utility model has anti-slip texture 501 on the top, and the L-shaped pressure groove 101 has a groove 103. The bottom of the elastic pressure plate 5 is connected to the groove 103 by a spring 6.
[0020] The L-shaped pressure plate 301 of this utility model has a guide slope 303 on its inner side, and the guide slope 303 and the vertical surface of the L-shaped pressure groove 101 form a concrete guide channel.
[0021] The aluminum template 2 of this utility model has a limiting groove on its bonding surface, and the inner edge of the L-shaped pressure plate 301 has a slot. The elastic sealing strip 302 is made of silicone and has a wavy cross-section. The two sides are respectively embedded in the slot of the L-shaped pressure plate 301 and the limiting groove of the aluminum template 2.
[0022] The adjusting bolt of this utility model includes a screw 401 and a limiting nut 402. The screw 401 passes through the through hole 201 of the aluminum template 2 and is threadedly connected to the bolt hole 102 of the bay window body 1. The limiting nut 402 is located on the outside of the aluminum template 2 and is used to adjust the clamping force of the pressing groove assembly 3.
[0023] The working process of the prefabricated bay window anti-leakage grouting groove structure provided by this utility model is as follows:
[0024] During concrete pouring, the L-shaped pressure groove 101 area between the aluminum formwork 2 and the bay window body 1 is subjected to concrete pressure. At this time, the elastic sealing strip 302 can elastically deform according to the concrete pressure, filling the tiny gaps between the formwork and the bay window body 1 to prevent grout leakage. Simultaneously, the elastic pressure plate 5, through the action of the spring 6, consistently provides a stable pre-tightening force to the aluminum formwork 2, ensuring that the aluminum formwork 2 and the bay window body 1 remain tightly fitted. Furthermore, the guide slope 303 on the inner side of the L-shaped pressure plate 301 can smoothly guide the concrete to the joint between the bay window body 1 and the cast-in-place wall, avoiding the formation of air bubbles and voids, and ensuring construction quality. Throughout the construction process, the structure of this invention effectively prevents grout leakage and improves the sealing performance and construction quality at the connection between the bay window body 1 and the cast-in-place wall. During disassembly, the aluminum formwork 2 can be separated from the bay window body 1 by loosening the adjusting bolts, allowing for reuse.
[0025] The accompanying drawings merely illustrate the technical concept of this utility model and should not be construed as limiting the scope of protection of this utility model. For those skilled in the art, various improvements and modifications can be made without departing from the principle of this utility model, and all such improvements and modifications fall within the scope of protection of the claims of this utility model.
Claims
1. A prefabricated bay window anti-leakage grouting groove structure, comprising a bay window body, an aluminum template, a groove assembly, and an elastic pressure plate, characterized in that: The outer edge of the bay window body is provided with an L-shaped pressure groove, and the vertical surface of the L-shaped pressure groove is provided with multiple bolt holes. The aluminum template fits into the L-shaped pressure groove of the bay window body. The aluminum template is provided with through holes corresponding to the bolt holes. The pressure groove assembly includes an L-shaped pressure plate and an elastic sealing strip. One side of the L-shaped pressure plate is embedded in the L-shaped pressure groove, and the other side of the L-shaped pressure plate is fixedly connected to the aluminum template by adjusting bolts. The elastic sealing strip is provided between the L-shaped pressure plate and the aluminum template. The elastic pressure plate is connected to the bay window body by a spring, and the top of the elastic pressure plate contacts the aluminum template and applies a preload.
2. The prefabricated bay window anti-leakage grouting groove structure according to claim 1, characterized in that: The top of the elastic pressure plate is provided with anti-slip texture, the L-shaped pressure groove is provided with a groove, and the bottom of the elastic pressure plate is connected to the groove by a spring.
3. The prefabricated bay window anti-leakage grouting groove structure according to claim 1, characterized in that: The inner side of the L-shaped pressure plate is provided with a flow guiding slope, which forms a concrete flow guiding channel with the vertical surface of the L-shaped pressure groove.
4. The prefabricated bay window anti-leakage grouting groove structure according to claim 1, characterized in that: The aluminum template has a limiting groove on its bonding surface, the L-shaped pressure plate has a slot on its inner edge, and the elastic sealing strip is made of silicone with a wavy cross-section. The two sides are respectively embedded in the slot of the L-shaped pressure plate and the limiting groove of the aluminum template.
5. The prefabricated bay window anti-leakage grouting groove structure according to claim 1, characterized in that: The adjusting bolt includes a screw and a limiting nut. The screw passes through the through hole of the aluminum template and is threadedly connected to the bolt hole of the bay window body. The limiting nut is located on the outside of the aluminum template and is used to adjust the clamping force of the pressure groove assembly.