A prefabricated bay window and aluminum alloy formwork joint position fixing structure

By setting bidirectional pressure grooves and support components on prefabricated bay windows and aluminum alloy formwork, the problem of insufficient fit between prefabricated components and aluminum alloy formwork was solved, achieving higher construction quality and safety.

CN224588271UActive Publication Date: 2026-08-04THE THIRD CONSTR ENG CO LTD OF CHINA CONSTR SECOND ENG BUREAU
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
THE THIRD CONSTR ENG CO LTD OF CHINA CONSTR SECOND ENG BUREAU
Filing Date
2025-08-11
Publication Date
2026-08-04

AI Technical Summary

Technical Problem

Precast components and aluminum alloy formwork are difficult to fit together perfectly during construction, resulting in incomplete sealing of the adhesive strips, which leads to concrete defects such as grout leakage and pitting, affecting construction quality and increasing costs.

Method used

A two-way groove design is set on the prefabricated bay window body and aluminum alloy template, and it is equipped with vertical support components, diagonal support components and fixing structures, including keel, fixing seat, tensioning screw, etc., to form a stable support system and improve fit and stability.

Benefits of technology

It effectively reduces the gap between the prefabricated bay window and the aluminum alloy formwork, ensures the sealing effect of the adhesive strip, improves construction quality, reduces the risk of grout leakage and surface pitting, and improves construction safety and efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a fixing structure at the junction of a precast bay window and an aluminum alloy template. It includes a precast bay window body with a bay window groove inside. A template structure is provided on the outside of the precast bay window body. A vertical support component is fixedly installed on the inside of the template structure, and a diagonal support component is fixedly installed on the outside of the template structure. A fixing structure is provided between the template structure and the precast bay window body. The template structure includes a first groove template, a first groove protrusion, a second groove template, and a second groove protrusion. This utility model, by setting bay window grooves and first and second groove protrusions on the precast bay window body, the first groove template, and the second groove template respectively, can greatly improve the fit between the precast bay window and the aluminum alloy template. This bidirectional groove design effectively reduces the gap between the two, allowing the sealing strip to effectively seal, significantly reducing the occurrence of problems such as grout leakage and surface roughness during concrete pouring.
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Description

Technical Field

[0001] This utility model belongs to the field of prefabricated bay window technology, and more specifically, it relates to a fixing structure at the junction of a prefabricated bay window and an aluminum alloy template. Background Technology

[0002] In the current construction engineering field, prefabricated buildings have become an indispensable and important component, especially in mid-to-high-rise projects where owners have more stringent requirements for building quality and construction efficiency. In prefabricated projects that use aluminum formwork as a support system, ensuring the precise fit and stable connection between prefabricated components and aluminum alloy formwork has become a key link in improving construction quality and efficiency.

[0003] Traditionally, the design of precast components and aluminum alloy formwork is mostly based on the assumption of a flat surface. However, in actual construction, due to slight deviations in manufacturing precision, transportation, and installation, it is often difficult to achieve an ideal fit between the precast components and the aluminum alloy formwork. Some projects have attempted to improve the fit by unidirectional groove treatment on the aluminum alloy formwork and adding adhesive strips at the contact points between the precast components and the aluminum formwork. However, these methods have many limitations in practical applications. For example, when the groove on the aluminum alloy formwork is only 5mm, the gap between the aluminum formwork and the precast bay window is prone to widening during construction, resulting in incomplete sealing of the adhesive strips. This can lead to concrete defects such as grout leakage and pitting, seriously affecting the appearance quality of the concrete and even potentially causing water leakage problems later on. In addition, repairing these defects not only increases labor costs but also consumes a large amount of repair materials, further increasing project costs. Utility Model Content

[0004] The purpose of this utility model is to provide a fixing structure at the junction of a prefabricated bay window and an aluminum alloy template, so as to solve the problem mentioned in the background art that it is difficult to achieve an ideal fit between the prefabricated components and the aluminum alloy template.

[0005] To achieve the above objectives, this utility model provides a fixing structure at the junction of a prefabricated bay window and an aluminum alloy template, including a prefabricated bay window body, a bay window pressing groove inside the prefabricated bay window body, a template structure on the outside of the prefabricated bay window body, a vertical support component fixedly installed on the inside of the template structure, a diagonal support component fixedly installed on the outside of the template structure, and a fixing structure between the template structure and the prefabricated bay window body; wherein, the template structure includes: a first pressing groove template, a first pressing groove protrusion, a second pressing groove template, and a second pressing groove protrusion, the first pressing groove template being disposed at the top and bottom of the prefabricated bay window body, the first pressing groove protrusion being fixedly disposed on the outside of the first pressing groove template, the second pressing groove template being movably disposed on both sides of the prefabricated bay window body, the second pressing groove protrusion being fixedly disposed on the outside of the second pressing groove template, and both the second pressing groove protrusion and the first pressing groove protrusion being movably disposed on the inside of the bay window pressing groove.

[0006] In a preferred embodiment, the template structure further includes: a first side template, a second side template, and an angle aluminum. The first side template is disposed at the bottom outside of the first groove template, the second side template is disposed between the second groove template and the first side template, and the second side template and the first side template are fixedly connected by bolts. The angle aluminum is fixedly disposed between the first side template and the first groove template by bolts, and the angle aluminum is also fixedly disposed between the second side template and the second groove template by bolts.

[0007] In a preferred embodiment, the vertical support assembly includes: a vertical support cylinder, a first threaded post, a first swivel handle, and a support base. The vertical support cylinder is movably disposed on the outside of the first pressure groove template. The first threaded post is disposed inside both ends of the vertical support cylinder by threaded connection. The first swivel handle is fixedly disposed on the outside of the first threaded post. The support base is rotatably disposed on the end of the first threaded post, and the outside of the support base is in contact with the outside of the first pressure groove template.

[0008] In a preferred embodiment, the diagonal bracing assembly includes: a mounting base, a diagonal support cylinder, a second threaded column, a second screw, a connector, and a diagonal bracing seat. The mounting base is fixedly installed on the existing floor slab. One end of the diagonal support cylinder is rotatably disposed inside the mounting base. The second threaded column is threadedly connected inside the diagonal support cylinder. The second screw is fixedly disposed outside the second threaded column. The connector is rotatably disposed at the end of the second threaded column. The diagonal bracing seat is rotatably disposed outside the connector, and the outer side of the diagonal bracing seat is in contact with the inner side of the first side template.

[0009] In a preferred embodiment, the fixing structure includes: a keel and a fixing seat. The keel is arranged in four symmetrical groups. One group of keels is attached to the outer side of the precast bay window body. The outer sides of the other two groups of keels are attached to the outer side of the second pressure groove template, and the outer side of another group of keels is attached to the outer side of the second side template. The fixing seat is fixedly arranged on both sides of the keel and is set as a right-angled isosceles triangle.

[0010] In a preferred embodiment, the fixing structure further includes: a tensioning screw and a locking nut. The tensioning screw is movably disposed between the inside of the fixing seat and the inside of the keel, and the tensioning screw is inclinedly disposed between the two sets of keels. The gasket is movably disposed on the outer side of both ends of the tensioning screw, and the outer side of the gasket is in contact with the outer side of the fixing seat. The locking nut is disposed on the outer side of both ends of the tensioning screw through a threaded connection, and the outer side of the locking nut is in contact with the outer side of the gasket.

[0011] In a preferred embodiment, the first groove template, the second groove template, the first side template, and the second side template are all made of aluminum alloy templates.

[0012] Compared with the prior art, the present invention has the following beneficial effects: 1. In this utility model, by setting bay window grooves and first and second groove protrusions on the precast bay window body, the fit between the precast bay window and the aluminum alloy template is greatly improved. This bidirectional groove design effectively reduces the gap between the two, allowing the sealing strip to effectively seal, thereby significantly reducing the occurrence of quality problems such as grout leakage and surface roughness during concrete pouring, and improving the overall construction quality.

[0013] 2. In this utility model, a stable support system is formed through the tight connection and fixation of the keel, fixing seat, and tensioning screw in the fixed structure. This design not only enhances the overall stability of the junction between the precast bay window and the aluminum alloy template, but also improves the safety of the structure during construction and reduces the risk of safety accidents caused by structural loosening or deformation.

[0014] 3. In this utility model, the design of the vertical support component and the diagonal support component provides additional support for the formwork structure, ensuring the stability and rigidity of the formwork during construction. At the same time, the adjustability of these components allows construction personnel to quickly adjust the support strength and position according to actual needs, further improving construction efficiency. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of the prefabricated bay window body of this utility model.

[0016] Figure 2 This is a schematic diagram of the connection structure between the first pressing groove protrusion and the second pressing groove protrusion of this utility model.

[0017] Figure 3 This is a schematic diagram of the connection structure between the first pressure groove template and the first side template of this utility model.

[0018] Figure 4 This is a schematic diagram of the connection structure between the second pressure groove template and the second side template of this utility model.

[0019] Figure 5 This is a schematic diagram of the overall structure of this utility model.

[0020] Figure 6 This is a top view schematic diagram of the fixed structure of this utility model.

[0021] Figure 7 This is a schematic diagram of the overall structure of the fixed structure of this utility model.

[0022] Figure 8 This is a schematic diagram of the overall structure of the vertical support component of this utility model.

[0023] Figure 9 This is a schematic diagram of the overall structure of the diagonal brace component of this utility model.

[0024] Explanation of reference numerals in the attached figures: 1. Precast bay window body; 101. Bay window groove; 2. Template structure; 201. First groove template; 202. First groove protrusion; 203. Second groove template; 204. Second groove protrusion; 205. First side template; 206. Second side template; 207. Angle aluminum; 3. Vertical support assembly; 301. Vertical support cylinder; 302. First threaded column; 303. First handle; 304. Support base; 4. Diagonal brace assembly; 401. Mounting base; 402. Diagonal support cylinder; 403. Second threaded column; 404. Second handle; 405. Connector; 406. Diagonal brace base; 5. Fixing structure; 501. Keel; 502. Fixing base; 503. Tensioning screw; 504. Washer; 505. Locking nut. Detailed Implementation

[0025] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples.

[0026] Example 1: As attached Figure 1 To be continued Figure 9 As shown, the prefabricated bay window and aluminum alloy template junction fixing structure of this utility model includes a prefabricated bay window body 1, a bay window pressing groove 101 is provided inside the prefabricated bay window body 1, and a template structure 2 is provided on the outside of the prefabricated bay window body 1. The height of the bay window pressing groove 101 is set to 6mm. A vertical support component 3 is fixedly installed on the inside of the template structure 2, and a diagonal support component 4 is fixedly installed on the outside of the template structure 2. A fixing structure 5 is provided between the template structure 2 and the prefabricated bay window body 1.

[0027] In this embodiment, the template structure 2 includes: a first groove template 201, a first groove protrusion 202, a second groove template 203, and a second groove protrusion 204. The first groove template 201 is disposed at the top and bottom of the precast bay window body 1, and the first groove protrusion 202 is fixedly disposed on the outside of the first groove template 201. The second groove template 203 is movably disposed on both sides of the precast bay window body 1, and the second groove protrusion 204 is fixedly disposed on the outside of the second groove template 203. Both the second groove protrusion 204 and the first groove protrusion 202 are movably disposed on the inside of the bay window groove 101. The height of both the second groove protrusion 204 and the first groove protrusion 202 is set to 4mm, and the distance between the second groove protrusion 204 and the bottom of the bay window groove 101 is set to 2mm. The template structure 2 also includes: a first side template 205, a second side template 206, and an angle aluminum 207. The first side template 205 is located at the bottom outer side of the first groove template 201. The second side template 206 is located between the second groove template 203 and the first side template 205, and the second side template 206 and the first side template 205 are fixedly connected by bolts. The angle aluminum 207 is fixedly located between the first side template 205 and the first groove template 201 by bolts, and the angle aluminum 207 is also fixedly located between the second side template 206 and the second groove template 203 by bolts. The first groove template 201, the second groove template 203, the first side template 205, and the second side template 206 are all made of aluminum alloy. By setting bay window groove 101, first groove protrusion 202, and second groove protrusion 204 on the prefabricated bay window body 1, the first groove template 201, and the second groove template 203 respectively, the fit between the prefabricated bay window and the aluminum alloy template can be greatly improved. This bidirectional groove design effectively reduces the gap between the two, allowing the rubber strip to effectively seal.

[0028] Example 2: As attached Figure 8 With appendix Figure 9As shown: Based on Embodiment 1, the vertical support assembly 3 includes: a vertical support cylinder 301, a first threaded post 302, a first handle 303, and a support base 304. The vertical support cylinder 301 is movably disposed on the outside of the first groove template 201, and the first threaded post 302 is disposed inside both ends of the vertical support cylinder 301 via threaded connection; the first handle 303 is fixedly disposed on the outside of the first threaded post 302. The support base 304 is rotatably disposed on the end of the first threaded post 302, and the outside of the support base 304 is in contact with the outside of the first groove template 201. The diagonal bracing assembly 4 includes: a mounting base 401, a diagonal support cylinder 402, a second threaded column 403, a second screw handle 404, a connector 405, and a diagonal bracing seat 406. The mounting base 401 is fixedly installed on the existing floor slab. One end of the diagonal support cylinder 402 is rotatably disposed inside the mounting base 401. The second threaded column 403 is threadedly connected inside the diagonal support cylinder 402. The second screw handle 404 is fixedly disposed outside the second threaded column 403. The connector 405 is rotatably disposed at the end of the second threaded column 403. The diagonal bracing seat 406 is rotatably disposed outside the connector 405, and the outer side of the diagonal bracing seat 406 is in contact with the inner side of the first side formwork 205. The design of the vertical bracing assembly 3 and the diagonal bracing assembly 4 provides additional support for the formwork structure 2, ensuring the stability and rigidity of the formwork during construction. Simultaneously, the adjustability of these components allows construction personnel to quickly adjust the support strength and position according to actual needs.

[0029] Example 3: As attached Figure 6 With appendix Figure 7As shown: Based on Embodiments 1 and 2, the fixing structure 5 includes: a keel 501, a fixing seat 502, a tensioning screw 503, a washer 504, and a locking nut 505. Four sets of keels 501 are symmetrically arranged. One set of keels 501 has its outer side attached to the outer side of the precast bay window body 1, two other sets of keels 501 have their outer sides attached to the outer side of the second pressure groove template 203, and another set of keels 501 has its outer side attached to the outer side of the second side template 206. The fixing seat 502 is fixedly installed on both sides of the keel 501 and is configured as a right-angled isosceles triangle. The tensioning screw 503 is movably installed between the inside of the fixing seat 502 and the inner side of the keel 501, and is inclined between the two sets of keels 501. The washer 504 is movably installed on the outer sides of both ends of the tensioning screw 503, and the outer side of the washer 504 is attached to the outer side of the fixing seat 502. Locking nuts 505 are threadedly connected to the outer sides of both ends of the tensioning screw 503, and the outer side of the locking nut 505 fits against the outer side of the washer 504. Through the tight connection and fixation of the keel 501, fixing seat 502, and tensioning screw 503 in the fixing structure 5, a stable support system is formed. This design not only enhances the overall stability of the junction between the precast bay window and the aluminum alloy formwork, but also improves the safety of the structure during construction, reducing the risk of safety accidents caused by structural loosening or deformation.

[0030] Example 4: The specific usage method of this embodiment is described below: In this invention, during use, the first groove template 201 is placed on the top and bottom of the prefabricated bay window body 1, ensuring that the first groove protrusion 202 faces the bay window groove 101. The second groove template 203 is movably placed on both sides of the prefabricated bay window body 1, similarly embedding the second groove protrusion 204 into the bay window groove 101, with the distance between the second groove protrusion 204 and the bottom of the first groove protrusion 202 and the bay window groove 101 set to 2mm. Then, adhesive strips are inserted into the gap between the second groove protrusion 204 and the bottom of the first groove protrusion 202 and the bay window groove 101. The first side template 205 is placed on the outer bottom of the first groove template 201, and the relative positions of the first side template 205 and the first groove template 201 are initially fixed by bolts and angle aluminum 207. Place the second side template 206 between the second groove template 203 and the first side template 205, and use bolts and angle aluminum 207 to firmly connect the second side template 206 and the first side template 205; during the connection process, ensure that the second side template 206 and the second groove template 203 fit tightly together. Move the vertical support cylinder 301 to a suitable position on the outside of the first groove template 201. By rotating the first handle 303, drive the first threaded column 302 to rotate inside both ends of the vertical support cylinder 301, thereby adjusting the extension length of the first threaded column 302; continue to rotate the first handle 303, so that the support seat 304 gradually approaches the outside of the first groove template 201, until the outside of the support seat 304 fits tightly against the outside of the first groove template 201, and the vertical support assembly 3 can provide sufficient vertical support force for the first groove template 201 to ensure that the template does not deform or shift in the vertical direction; use expansion bolts to firmly install the mounting base 401 on the original floor slab. Then, by rotating the second handle 404, the second threaded post 403 moves inside the inclined support cylinder 402, adjusting the overall length of the inclined support cylinder 402 and the second threaded post 403. As the second threaded post 403 moves, the connector 405 drives the inclined support seat 406 to gradually approach the inner side of the first side template 205. When the outer side of the inclined support seat 406 is tightly fitted with the inner side of the first side template 205, the rotation of the second handle 404 is stopped. At this time, the inclined support assembly 4 provides stable inclined support for the first side template 205, preventing the template from moving or tilting in the horizontal direction. Four sets of keels 501 are arranged symmetrically. The tensioning screw 503 is movably set between the inside of the fixed seat 502 and the inside of the keel 501, so that the tensioning screw 503 is set at an angle between the two sets of keels 501. Washers 504 are put on the outer sides of both ends of the tensioning screw 503, so that the outer side of the washer 504 fits tightly with the outer side of the fixed seat 502. Then, the locking nut 505 is installed on the outer side of both ends of the tensioning screw 503 through threaded connection, and the locking nut 505 is gradually tightened.During the tightening process, the locking nuts 505 on both sides should be tightened symmetrically and evenly to generate pre-tightening force on the tensioning screw 503, thereby tightening the keel 501 and enhancing the stability of the entire fixed structure 5, ensuring that the precast bay window and the aluminum alloy template are firmly fixed at the junction; finally, concrete can be poured between the aluminum alloy template and the precast bay window body 1.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A prefabricated bay window and aluminum alloy formwork joint fixing structure, characterized in that, include: The prefabricated bay window body (1) has a bay window pressing groove (101) inside. The prefabricated bay window body (1) has a template structure (2) on the outside. The template structure (2) has a vertical support component (3) fixedly installed on the inside. The template structure (2) has a diagonal support component (4) fixedly installed on the outside. A fixing structure (5) is provided between the template structure (2) and the prefabricated bay window body (1). The template structure (2) includes: a first groove template (201), a first groove protrusion (202), a second groove template (203) and a second groove protrusion (204). The first groove template (201) is set at the top and bottom of the precast bay window body (1). The first groove protrusion (202) is fixedly set on the outside of the first groove template (201). The second groove template (203) is movably set on both sides of the precast bay window body (1). The second groove protrusion (204) is fixedly set on the outside of the second groove template (203). Both the second groove protrusion (204) and the first groove protrusion (202) are movably set on the inside of the bay window groove (101).

2. The fixing structure at the junction of the prefabricated bay window and the aluminum alloy template according to claim 1, characterized in that: The template structure (2) further includes: a first side template (205), a second side template (206), and an angle aluminum (207). The first side template (205) is located at the bottom outside of the first groove template (201). The second side template (206) is located between the second groove template (203) and the first side template (205). The second side template (206) and the first side template (205) are fixedly connected by bolts. The angle aluminum (207) is fixedly located between the first side template (205) and the first groove template (201) by bolts. The angle aluminum (207) is also fixedly located between the second side template (206) and the second groove template (203) by bolts.

3. The prefabricated bay window and aluminum alloy formwork junction position fixing structure according to claim 1, characterized in that: The vertical support assembly (3) includes: a vertical support cylinder (301), a first threaded column (302), a first swivel (303), and a support base (304). The vertical support cylinder (301) is movably disposed on the outside of the first groove template (201). The first threaded column (302) is disposed inside both ends of the vertical support cylinder (301) by threaded connection. The first swivel (303) is fixedly disposed on the outside of the first threaded column (302). The support base (304) is rotatably disposed on the end of the first threaded column (302), and the outside of the support base (304) is in contact with the outside of the first groove template (201).

4. The prefabricated bay window and aluminum alloy formwork joint position fixing structure according to claim 2, characterized in that: The diagonal bracing assembly (4) includes: a mounting base (401), a diagonal support cylinder (402), a second threaded column (403), a second swivel (404), a connector (405), and a diagonal bracing seat (406). The mounting base (401) is fixedly installed on the existing floor slab. One end of the diagonal support cylinder (402) is rotatably disposed inside the mounting base (401). The second threaded column (403) is disposed inside the diagonal support cylinder (402) by threaded connection. The second swivel (404) is fixedly disposed outside the second threaded column (403). The connector (405) is rotatably disposed at the end of the second threaded column (403). The diagonal bracing seat (406) is rotatably disposed outside the connector (405), and the outside of the diagonal bracing seat (406) is in contact with the inside of the first side template (205).

5. The prefabricated bay window and aluminum alloy formwork junction position fixing structure according to claim 2, characterized in that: The fixed structure (5) includes: a keel (501) and a fixing seat (502). The keel (501) is symmetrically arranged in four groups. One group of keels (501) is attached to the outer side of the precast bay window body (1). The outer sides of the other two groups of keels (501) are attached to the outer side of the second pressure groove template (203) respectively. There is also a group of keels (501) attached to the outer side of the second side template (206). The fixing seat (502) is fixedly arranged on both sides of the keel (501), and the fixing seat (502) is set as a right-angled isosceles triangle.

6. The prefabricated bay window and aluminum alloy formwork junction position fixing structure according to claim 5, characterized in that: The fixing structure (5) further includes: a tensioning screw (503) and a locking nut (505). The tensioning screw (503) is movably disposed between the inside of the fixing seat (502) and the inside of the keel (501), and the tensioning screw (503) is inclinedly disposed between the two sets of keels (501). The gasket (504) is movably disposed on the outside of both ends of the tensioning screw (503), and the outside of the gasket (504) is in contact with the outside of the fixing seat (502). The locking nut (505) is disposed on the outside of both ends of the tensioning screw (503) by threaded connection, and the outside of the locking nut (505) is in contact with the outside of the gasket (504).

7. The prefabricated bay window and aluminum alloy formwork junction position fixing structure according to claim 2, characterized in that: The first groove template (201), the second groove template (203), the first side template (205) and the second side template (206) are all made of aluminum alloy templates.