A window frame fastener suitable for inverted sill window opening structures

By installing a new type of fixing plate structure on the outer protrusion of the prefabricated exterior wall, and using L-shaped hooks and expansion bolts for fixing, the leakage problem between the window frame and the prefabricated exterior wall joint in prefabricated buildings is solved, achieving a more reliable fixing and waterproofing effect.

CN224432324UActive Publication Date: 2026-06-30SHANGHAI XINYUAN REAL ESTATE DEV CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI XINYUAN REAL ESTATE DEV CO LTD
Filing Date
2025-08-05
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

In existing technologies, improper design of the window frame and the window opening of the prefabricated exterior wall in prefabricated buildings can easily lead to leakage hazards. Conventional fixing plates are difficult to fix or mechanical bending can damage the anti-rust layer, resulting in the failure of the waterproof function of the anti-sill.

Method used

A window frame fastener suitable for inverted sill window opening structures has been designed, including a new type of fastening plate structure. It is stably installed by utilizing the outer perimeter protrusion of the prefabricated exterior wall and fixed by a new type of snap-fit ​​L-shaped hook and expansion screws, avoiding mechanical bending and enhancing the reliability and tightness of the fixation.

Benefits of technology

This improves the fixing reliability and tightness of the precast exterior wall with anti-reinforcement frame and window frame, prevents window gaps from exceeding the waterproof range of the anti-reinforcement frame, and ensures the effectiveness of the waterproof function.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224432324U_ABST
Patent Text Reader

Abstract

This utility model relates to the technical field of window frame fixing devices, specifically a window frame fixing device suitable for a reverse-sill window structure, comprising a prefabricated exterior wall and a novel fixing plate structure; the novel fixing plate structure includes a novel first horizontal plate, a novel engaging L-shaped hook, a novel inclined plate, a novel second horizontal plate, a novel first vertical plate, a novel third horizontal plate, and a novel second vertical plate; the top of the novel first horizontal plate is connected to two symmetrically arranged novel engaging L-shaped hooks, which respectively engage with matching L-shaped hooks on both sides of the bottom of the aluminum alloy exterior frame; a novel first vertical plate is connected to one side of the novel first horizontal plate near the top, a novel third horizontal plate is connected to the top of the novel first vertical plate away from the novel first horizontal plate, and a novel second vertical plate is connected to the bottom of the side of the novel third horizontal plate away from the novel first vertical plate. This device improves the reliability and tightness of fixing the reverse-sill prefabricated exterior wall to the window frame.
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Description

Technical Field

[0001] This utility model relates to the technical field of window frame fixing devices, and in particular to a window frame fixing device suitable for a reverse sill window opening structure. Background Technology

[0002] Prefabricated buildings, due to their advantages such as shorter construction time, energy conservation, and cleaner production, are widely used in residential construction and represent the most important method of building industrialization. However, the on-site waterproofing technology for prefabricated exterior walls still needs improvement. In particular, improper design or construction of the joints between the window frame and the window opening of the prefabricated exterior wall can easily lead to leakage risks. Prefabricated exterior wall components with four-sided retaining walls at the window opening can effectively reduce the risk of window leakage, but conventional fixing plates are difficult to use for fixing or mechanical bending can damage the anti-rust layer, and in some cases, the window gaps may extend beyond the waterproofing range of the retaining wall, causing the retaining wall's waterproofing function to disappear. More scientific fixing plate designs are needed to improve the reliability and tightness of the fixing between the retaining wall and the window frame. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the defects of the existing technology. This utility model proposes a window frame fixing component suitable for the reverse sill window opening structure, which improves the reliability and tightness of fixing the reverse sill type prefabricated exterior wall to the window frame.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a window frame fixing component suitable for a reverse sill window opening structure, including a prefabricated exterior wall and a new type of fixing plate structure;

[0005] The new type of fixing plate structure includes a new type of first horizontal plate, a new type of L-shaped hook, a new type of inclined plate, a new type of second horizontal plate, a new type of first vertical plate, a new type of third horizontal plate, and a new type of second vertical plate;

[0006] The top of the new first horizontal plate is connected to two symmetrically arranged new L-shaped hooks, and the two new L-shaped hooks are respectively fastened to the L-shaped hooks arranged on both sides of the bottom of the aluminum alloy outer frame.

[0007] A new type of first vertical plate is connected to one side of the new type of first horizontal plate near the top, a new type of third horizontal plate is connected to the top of the new type of first vertical plate away from the new type of first horizontal plate, and a new type of second vertical plate is connected to the bottom of the side of the new type of third horizontal plate away from the new type of first vertical plate.

[0008] A new type of inclined plate is connected to the bottom of the other side of the new type of first horizontal plate, and a new type of second horizontal plate is connected to the bottom of the new type of inclined plate away from the new type of first horizontal plate.

[0009] The prefabricated exterior wall is provided with an exterior window opening with a four-sided inverted sill. The exterior window opening with a four-sided inverted sill has an outer protrusion at its edge. The new first vertical plate is attached to the inner side of the outer protrusion, the new third horizontal plate is attached to the top of the outer protrusion, and the new second vertical plate is attached to the outer side of the outer protrusion.

[0010] Furthermore, the novel inclined plate extends outward relative to the novel first horizontal plate.

[0011] Furthermore, the new type of second horizontal plate and the new type of second vertical plate are fixedly installed on the prefabricated exterior wall using new type of expansion bolts.

[0012] Furthermore, the left side of the prefabricated exterior wall is the exterior wall side, the right side of the prefabricated exterior wall is the interior wall side, and the peripheral protrusion is installed on the side closest to the exterior wall side.

[0013] Furthermore, the peripheral protrusion is a fully enclosed frame wall or an intermittent wall, used to stably install multiple novel fixing plate structures on the peripheral protrusion.

[0014] Furthermore, fine aggregate concrete is provided between the new type of first horizontal plate, the new type of inclined plate and the precast exterior wall.

[0015] Furthermore, the new type of first horizontal plate, new type of L-shaped hook, new type of inclined plate, new type of second horizontal plate, new type of first vertical plate, new type of third horizontal plate and new type of second vertical plate are integrally formed to form a new type of fixing plate structure.

[0016] Compared with the prior art, the beneficial effects of this utility model include:

[0017] By attaching the new third horizontal plate, the new first vertical plate, and the new second vertical plate to the outer protruding wall, the new fixing plate structure is more stably installed on the prefabricated exterior wall.

[0018] This device can be fixed in place by the external protrusions to prevent the window gap from exceeding the waterproof range of the retaining wall, which would cause the waterproof function of the retaining wall to disappear. Attached Figure Description

[0019] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts. Wherein:

[0020] Figure 1 This is a schematic diagram of the fixed installation structure of the device of this utility model;

[0021] Figure 2 A schematic diagram of the window frame fixing structure for a traditional window opening;

[0022] Figure 3This is a partial side view of a traditional prefabricated exterior wall with a four-sided sill and external window opening.

[0023] Figure 4 This is a schematic diagram of the prefabricated exterior wall structure with a four-sided inverted sill for the window opening of the present invention;

[0024] Figure 5 This is a partially enlarged structural diagram of an aluminum alloy frame in the prior art;

[0025] Figure 6 This is a schematic diagram of a traditional fixed plate structure;

[0026] Figure 7 This is a schematic diagram of the fixing plate structure of this utility model;

[0027] Figure 8 This is a front view structural diagram of the prefabricated exterior wall with a four-sided inverted sill and window opening according to this utility model.

[0028] The diagram labels are: 1. Precast exterior wall; 11. Exterior wall side; 12. Interior wall side; 13. Peripheral protrusion; 14. Window opening with four-sided sill.

[0029] 2. Aluminum alloy outer frame; 21. Matching L-shaped hook;

[0030] 3. New type of fixing plate structure; 31. New type of first horizontal plate; 32. New type of L-shaped hook fitting; 33. New type of inclined plate; 34. New type of second horizontal plate; 35. New type of first vertical plate; 36. New type of third horizontal plate; 37. New type of second vertical plate; 38. New type of expansion bolt.

[0031] 4. Traditional fixing plate structure; 41. Traditional first horizontal plate; 42. Traditional L-shaped hook fitting; 43. Traditional inclined plate; 44. Traditional second horizontal plate; 45. Traditional expansion screw;

[0032] 5. Fine aggregate concrete. Detailed Implementation

[0033] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0034] Example 1:

[0035] Key reference Figure 1 , Figure 4 , Figure 5 , Figure 7 , Figure 8The device mainly consists of a prefabricated exterior wall 1 and a novel fixed plate structure 3.

[0036] The new type of fixing plate structure 3 includes an integrally formed new type of first horizontal plate 31, a new type of locking L-shaped hook 32, a new type of inclined plate 33, a new type of second horizontal plate 34, a new type of first vertical plate 35, a new type of third horizontal plate 36, and a new type of second vertical plate 37.

[0037] The top of the new first horizontal plate 31 is connected to two symmetrically arranged new L-shaped hooks 32, which are respectively engaged with the L-shaped hooks 21 arranged on both sides of the bottom of the aluminum alloy outer frame 2.

[0038] A new type of first vertical plate 35 is connected to one side of the new type of first horizontal plate 31 near the top. A new type of third horizontal plate 36 is connected to the top of the new type of first vertical plate 35 away from the new type of first horizontal plate 31. A new type of second vertical plate 37 is connected to the bottom of the side of the new type of third horizontal plate 36 away from the new type of first vertical plate 35.

[0039] A new type of inclined plate 33 is connected to the bottom of the other side of the new type of first horizontal plate 31, and a new type of second horizontal plate 34 is connected to the bottom of the new type of inclined plate 33 away from the new type of first horizontal plate 31. The new type of inclined plate 33 extends outward relative to the new type of first horizontal plate 31.

[0040] The precast exterior wall 1 has a window opening 14 with a four-sided sill. The outer edge of the window opening 14 has a peripheral protrusion 13, which is either a fully enclosed frame wall or an intermittent wall, used to stably install multiple novel fixing plate structures 3. A novel first vertical plate 35 is attached to the inner side of the peripheral protrusion 13, a novel third horizontal plate 36 is attached to the top of the peripheral protrusion 13, and a novel second vertical plate 37 is attached to the outer side of the peripheral protrusion 13. Fine aggregate concrete 5 is installed between the novel first horizontal plate 31, the novel inclined plate 33, and the precast exterior wall 1.

[0041] The new second horizontal plate 34 and the new second vertical plate 37 are fixedly installed on the prefabricated exterior wall 1 by new expansion bolts 38.

[0042] The top surface of the new third horizontal board 36 has a certain outward slope, which allows rainwater to flow out to the outside better.

[0043] This device is an improvement based on an existing device.

[0044] Existing technologies such as Figure 2 , Figure 3 , Figure 5 , Figure 6 From this, we can see that... Figure 2 The assembled exterior wall window openings and fixing plate structure.

[0045] Figure 3As shown, the left side of the precast exterior wall 1 is the exterior wall side 11, and the right side is the interior wall side 12. There is also a window opening in the middle of the precast exterior wall 1. This figure is a partial sectional view of one side of the bottom of the exterior wall, with the window opening 14 with a four-sided sill at the top being the window opening. For better understanding, the figure is shown as a side sectional view, with the window opening 14 with a four-sided sill being the window opening. The exterior wall side 11 is the part closer to the outside, and the interior wall side 12 is the part closer to the interior.

[0046] This device installs a peripheral protrusion 13 on the side of the precast exterior wall 1 closest to the exterior wall side 11, and the peripheral protrusion 13 is positioned at the window opening 14 with a four-sided inverted sill. The peripheral protrusion 13 can be a frame-type surrounding structure. This allows the novel fixing plate structure 3 to be stably installed on the peripheral protrusion 13. Figure 8 The structure can be seen more clearly now.

[0047] Figure 5 As a standard component in existing technology, this device still uses this standard component, which is then installed on the new fixing plate structure 3. Initial fixation is achieved by engaging the L-shaped hook 21 with the conventional L-shaped hook 42, and then the fine aggregate concrete 5 ensures a more stable installation of the engaging L-shaped hook 21 and the conventional L-shaped hook 42 together.

[0048] Figure 6 The existing fixing plate structure, namely the traditional fixing plate structure 4, includes a traditional first horizontal plate 41, traditional L-shaped hooks 42, a traditional inclined plate 43, and a traditional second horizontal plate 44. The top of the traditional first horizontal plate 41 is connected to two symmetrical traditional L-shaped hooks 42. Traditional inclined plates 43 are connected to the bottom sides of the traditional first horizontal plate 41. The traditional second horizontal plate 44 is connected to the bottom of the traditional inclined plate 43, away from the traditional first horizontal plate 41. The traditional second horizontal plate 44 is fixed to the prefabricated exterior wall 1 using traditional expansion screws 45. Its disadvantages include the fact that the traditional fixing plate structure 4 can only be fixed at flush positions. The inventors found that the traditional fixing plate structure 4 is difficult to fix in practice, requiring mechanical bending for fixation. However, this operation can damage the anti-rust layer of the traditional fixing plate structure 4, and may even cause the window gap to extend beyond the waterproof range of the anti-reverse retaining wall, resulting in the loss of the anti-reverse retaining wall's waterproof function.

[0049] This device uses the outer protrusion 13 to stably fix the novel fixing plate structure 3 without bending it, thus preventing damage to the anti-rust layer. Furthermore, the outer protrusion 13 has a certain height, which enhances waterproofing, preventing external water from easily entering the room.

[0050] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A window frame fastener suitable for use in a counterflash window opening structure, characterized by, It includes prefabricated exterior walls (1) and a new type of fixed panel structure (3); The new type of fixing plate structure (3) includes a new type of first horizontal plate (31), a new type of L-shaped hook (32), a new type of inclined plate (33), a new type of second horizontal plate (34), a new type of first vertical plate (35), a new type of third horizontal plate (36) and a new type of second vertical plate (37). The top of the new first horizontal plate (31) is connected to two symmetrically arranged new L-shaped hooks (32), and the two new L-shaped hooks (32) are respectively snapped with the matching L-shaped hooks (21) arranged on both sides of the bottom of the aluminum alloy frame (2). A new type of first vertical plate (35) is connected to one side of the new type of first horizontal plate (31) near the top. A new type of third horizontal plate (36) is connected to the top of the new type of first vertical plate (35) away from the new type of first horizontal plate (31). A new type of second vertical plate (37) is connected to the bottom of the side of the new type of third horizontal plate (36) away from the new type of first vertical plate (35). A new type of inclined plate (33) is connected to the bottom of the other side of the new type of first horizontal plate (31), and a new type of second horizontal plate (34) is connected to the bottom of the new type of inclined plate (33) away from the new type of first horizontal plate (31). The prefabricated exterior wall (1) is provided with an exterior window opening (14) with a four-sided reverse sill. The exterior window opening (14) with a four-sided reverse sill is provided with an outer protrusion (13) at its edge. The new first vertical plate (35) is attached to the inner side of the outer protrusion (13), the new third horizontal plate (36) is attached to the top of the outer protrusion (13), and the new second vertical plate (37) is attached to the outer side of the outer protrusion (13).

2. A window frame fastener for use in a counterflash window well structure according to claim 1, wherein, The new inclined plate (33) extends outward relative to the new first horizontal plate (31).

3. A window frame fastener for use in a counterflash window well structure according to claim 1, wherein, The new second horizontal plate (34) and the new second vertical plate (37) are fixedly installed on the prefabricated exterior wall (1) by new expansion bolts (38).

4. The window frame fastener for use in a counterflash window well structure according to claim 1, wherein The left side of the prefabricated exterior wall (1) is the exterior wall side (11), the right side of the prefabricated exterior wall (1) is the interior wall side (12), and the peripheral protrusion (13) is installed on the side close to the exterior wall side (11).

5. The window frame fastener for use in a counterflash window well structure according to claim 1, wherein, The outer protrusion (13) is a fully enclosed frame wall or an intermittent wall, used to stably install multiple new fixing plate structures (3) on the outer protrusion (13).

6. A window frame fastener for use in a counterflash window well structure according to claim 1, wherein, Fine aggregate concrete (5) is provided between the new first horizontal plate (31), the new inclined plate (33) and the precast outer wall (1).

7. The window frame fastener for use in a counterflash window well structure according to claim 1, wherein, The new type of first horizontal plate (31), new type of L-shaped hook (32), new type of inclined plate (33), new type of second horizontal plate (34), new type of first vertical plate (35), new type of third horizontal plate (36) and new type of second vertical plate (37) are integrally formed to form a new type of fixed plate structure (3).