Combined adjustable auxiliary frame for updating doors and windows

Abstract

The utility model discloses a combined type adjustable auxiliary frame for updating doors and windows, which comprises an adjustable auxiliary frame used for covering an original window frame of the doors and windows and an L-shaped connecting piece used for connecting the adjacent adjustable auxiliary frame, right-angle plates on two sides of the L-shaped connecting piece are respectively fixed on the adjacent adjustable auxiliary frame through fixing pieces, and the L-shaped connecting piece is connected with the adjustable auxiliary frame. The adjustable auxiliary frame comprises a broken bridge force bearing part and protection feet located at the positions, close to the left end and the right end, of the bottom side of the broken bridge force bearing part, so that the broken bridge force bearing part and the protection feet are combined to form a clamping groove used for being arranged outside an original window frame of the door and window in a covering mode. The broken bridge force bearing part comprises transverse plates which are vertically arranged at intervals, a cavity is reserved between the two transverse plates to form a double-layer cavity structure, and reinforcing ribs are arranged between the two transverse plates. The window frame is directly covered on an original window frame foundation, and is reliably anchored with a wall base layer through the positioning expansion bolts by adopting the adjustable auxiliary frame, and the wall base structure does not need to be damaged, so that the window frame is suitable for replacing or transforming doors and windows.

Description

Technical Field

[0001] The utility model relates to the technical field of decoration materials, in particular to a combined adjustable auxiliary frame for updating doors and windows. Background Art

[0002] Severely damaged doors and windows, or when you want to change their style and functionality, need to be replaced. Traditionally, window and door renovations involve removing the original window frames, repairing the underlying wall structure, and then installing new frames. Because some older building construction required directly connecting the window frames to the reinforced concrete structure to improve window stability, removing the original frames can be difficult. Furthermore, removing the old frames would damage the existing decorative coatings on the building's interior and exterior walls. Furthermore, completely removing the old window frames is time-consuming and labor-intensive, requiring a long construction period.

[0003] CN209539031U discloses a door and window frame structure for convenient renovation or replacement of old doors and windows, comprising a left window frame profile and a right window frame profile; the left window frame profile comprises a horizontal plate, the left end of which is a protruding lower frame-shaped window frame retaining edge, the right end of which is a U-shaped clamping head, the left end of which is a vertical plate, the bottom end of which is provided with an inverted L-shaped plate, and the bottom end of which is provided with an inverted U-shaped clamping head; a left screw hole is formed between the top surfaces of the inverted L-shaped plate and the inverted U-shaped clamping head. However, the above solution is completed by installing two inner and outer profiles, and is mainly fixed by horizontal mounting nails on the inner and outer sides, resulting in poor integrity; at the same time, it is not applicable to old doors and windows of different thicknesses or with different heights of the inner and outer walls of the door and window openings. Utility Model Content

[0004] The utility model aims to solve the technical problems existing in the prior art, and particularly innovatively proposes a combined adjustable auxiliary frame for updating doors and windows, which can be directly installed on the basis of the original window frame and reliably connected to the wall base structure without destroying the wall base structure and the original decorative layer, meeting the load requirements, and being suitable for replacing or renovating doors and windows.

[0005] In order to achieve the above-mentioned object, the utility model provides a combined adjustable auxiliary frame for updating doors and windows, comprising an adjustable auxiliary frame for covering an original window frame of the door and window, and an L-shaped connecting piece for connecting adjacent adjustable auxiliary frames, wherein the right-angle plates on both sides of the L-shaped connecting piece are respectively fixed to the adjacent adjustable auxiliary frames by fixing pieces, and the adjustable auxiliary frame comprises a broken bridge load-bearing portion and guard feet provided at the left and right ends of the bottom side of the broken bridge load-bearing portion, so that the broken bridge load-bearing portion and the guard feet are combined to form a slot for covering the outside of the original window frame of the door and window;

[0006] The load-bearing portion of the broken bridge comprises horizontal plates spaced apart from each other, with a cavity left between the two horizontal plates to form a double-layer cavity structure, and a reinforcing rib is provided between the two horizontal plates.

[0007] In the above embodiment, the lower portion of the adjustable auxiliary frame foot guard is provided with a plurality of breakaway grooves extending in a sequential manner from top to bottom along the foot guard's extension direction. The breakaway grooves are used to shorten the foot guard after being broken. The breakaway grooves allow the foot guard to be adjusted in length to accommodate window frames of varying heights on the inner and outer walls of the opening. The foot guard can be shortened as needed by simply breaking it, making operation convenient and expanding its applicability.

[0008] In the above solution, the breaking groove is arranged on the side where the two foot guards are close to each other to protect the aesthetics of the outer side.

[0009] In the above solution: the adjustable auxiliary frame on each side is equipped with at least two positioning expansion bolts, and the positioning expansion bolts are provided with an anchor nut, a positioning nut and a fixing nut in sequence from bottom to top;

[0010] The adjustable attachment frame has a first fixing hole at the top, and the horizontal plate has a second fixing hole below the first fixing hole. The first fixing hole is larger than the second fixing hole. The second fixing hole is used to pass through a positioning expansion bolt connected to the wall, and the first fixing hole is used to pass through a fixing nut threaded onto the top of the positioning expansion bolt. The positioning expansion bolt can be used for fixing, ensuring a secure and positioning effect.

[0011] In summary, the beneficial effects of the present invention are as follows: the combined adjustable auxiliary frame components are prefabricated in a factory and assembled and installed at the construction site, which is convenient for transportation, has a simple structure, is easy to assemble, and has a stable connection. It can be directly installed on the basis of the original window frame, avoiding damage to the connecting steel bars embedded in the wall foundation structure, ensuring the connection strength after the doors and windows are replaced or renovated, and ensuring the safety of the doors and windows. At the same time, there is no need to destroy the wall foundation structure, and there will be no need to repair the wall due to excessive damage, which improves work efficiency and shortens the construction period. In addition, the original window frame can be wrapped up to ensure aesthetics. The provided L-shaped connector can connect the four corners of the adjustable auxiliary frame to ensure installation stability. The provided broken bridge load-bearing part and reinforcing ribs can increase the load-bearing capacity and improve the support strength. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the adjustable auxiliary frame of the utility model.

[0013] Figure 2 It is a schematic diagram of the vertical adjustable auxiliary frame and L-shaped connecting piece of the utility model.

[0014] Figure 3 It is a schematic diagram of the adjustable auxiliary frame and L-shaped connecting piece of the utility model.

[0015] Figure 4 It is a schematic diagram of assembling the adjustable auxiliary frame of the utility model.

[0016] Figure 5 It is a cross-sectional view of the utility model after installation.

[0017] Figure 6 It is a front view of the utility model after installation.

[0018] Figure 7 It is a schematic diagram of the positioning expansion bolt of the utility model. DETAILED DESCRIPTION

[0019] The present invention will be further described below with reference to the following embodiments and accompanying drawings:

[0020] like Figures 1 to 7 As shown, a combined adjustable auxiliary frame for updating doors and windows includes an adjustable auxiliary frame 1 for covering the original window frame 3 of the door and window. It also includes an L-shaped connector 2 for connecting adjacent adjustable auxiliary frames 1, and the right-angle plates on both sides of the L-shaped connector 2 are respectively fixed to the adjacent adjustable auxiliary frames 1 by fixing members. The adjustable auxiliary frame 1 includes a thermal break load-bearing portion and foot guards 1e located at the left and right ends of the bottom side of the thermal break load-bearing portion, so that the thermal break load-bearing portion and the foot guards 1e are combined to form a slot for covering the outside of the original window frame 3 of the door and window. The thermal break load-bearing portion includes horizontal plates 1c spaced apart in an upper and lower manner, with a cavity left between the two horizontal plates 1c to form a double-layer cavity structure, and reinforcing ribs are provided between the two horizontal plates 1c.

[0021] The lower portion of the foot guard 1e of the adjustable auxiliary frame 1 is provided with a plurality of break grooves 1a extending in the direction of extension from top to bottom. The break grooves 1a are used to shorten the length of the foot guard 1e after breaking. The break grooves 1a are provided on the side where the two foot guards 1e are close to each other, so as not to affect the outer appearance.

[0022] The adjustable auxiliary frame 1 on each side is equipped with at least two positioning expansion bolts 6, and the positioning expansion bolts 6 are provided with anchor nuts 6a, positioning nuts 6b and fixing nuts 6c in sequence from bottom to top to ensure the fixing and positioning effects.

[0023] A first fixing hole 1b is reserved on the top of the adjustable auxiliary frame 1, and a second fixing hole 1d is provided on the horizontal plate 1c below the first fixing hole 1b. The first fixing hole 1b is larger than the second fixing hole 1d. The second fixing hole 1d is used for the positioning expansion bolt 6 connected to the wall to pass through, and the first fixing hole 1b is used for the fixing nut 6c threaded on the top of the positioning expansion bolt 6 to pass through. It can be fixed by the positioning expansion bolt 6, and the nut can be hidden in the adjustable auxiliary frame 1 to ensure the neatness of the exterior. The first fixing hole 1b and the second fixing hole 1d are both located between the support bars to ensure the connection strength. The distance between the horizontal plate 1c and the bottom of the groove is greater than the thickness of the fixing nut 6c.

[0024] First, cut the existing window frame 3 to a height of 10-20 mm, while maintaining the same width, to accommodate the adjustable auxiliary frame 1. Then, drill holes in the window frame 3 for positioning expansion bolts 6 that penetrate into the wall foundation structure 4. Positioning expansion bolts 6 are inserted into these holes, and anchor nuts 6a are screwed into the bolts, securing the frame to the wall foundation structure 4. Positioning nuts 6b are then screwed onto the bolts, and the height of the nuts 6b is adjusted to limit the height at which the adjustable auxiliary frame 1 can be clamped.

[0025] When installing the adjustable auxiliary frame 1, first assemble an L-shaped connector 2 at the designated locations on each end of the left and right adjustable auxiliary frames 1. Pre-set holes are provided at each end of the left and right adjustable auxiliary frames 1. Positioning expansion bolts 6 are used through the pre-set holes to secure the left and right adjustable auxiliary frames 1 to the existing left and right window frames 3, anchoring them to the wall base. Bolts are then used to secure the upper and lower adjustable auxiliary frames 1 to the L-shaped connectors 2, the upper and lower window frames 3, and the wall base through the pre-set holes at each end.

[0026] A fixing nut 6 c for fixing the adjustable auxiliary frame 1 is screwed into the top of the positioning expansion bolt 6 , and the fixing nut 6 c is immersed in the adjustable auxiliary frame 1 .

[0027] When installing the new window frame, connect it to the adjustable sub-frame 1 using set screws 7. The specifications of the new window frame should match those of the adjustable sub-frame 1. The length of the inner flange of the new window frame should be sufficient to cover the gap between the new window frame and the adjustable sub-frame 1. Finally, seal the bottom of the adjustable sub-frame 1 with the base layer using sealant 5.

Claims

1. A combined adjustable window and door renewal auxiliary frame, comprising an adjustable auxiliary frame (1) for covering an existing window frame (3) of the window and door, characterized in that: It also includes an L-shaped connecting piece (2) for connecting adjacent adjustable auxiliary frames (1), wherein the right-angle plates on both sides of the L-shaped connecting piece (2) are respectively fixed to the adjacent adjustable auxiliary frames (1) through fixing pieces, and the adjustable auxiliary frame (1) includes a broken bridge load-bearing portion and foot guards (1e) provided at the left and right ends of the bottom side of the broken bridge load-bearing portion, so that the broken bridge load-bearing portion and the foot guards (1e) are combined to form a slot for covering the outside of the original window frame (3) of the door and window; The load-bearing portion of the broken bridge comprises transverse plates (1c) spaced apart from each other, a cavity being left between the two transverse plates (1c) to form a double-layer cavity structure, and a reinforcing rib is provided between the two transverse plates (1c).

2. The auxiliary frame for updating combined adjustable doors and windows according to claim 1, characterized in that: The lower portion of the foot guard (1e) of the adjustable auxiliary frame (1) is provided with a plurality of breaking grooves (1a) extending along its extension direction in sequence from top to bottom, and the breaking grooves (1a) are used to shorten the length of the foot guard (1e) after breaking.

3. The auxiliary frame for upgrading combined adjustable doors and windows according to claim 2, characterized in that: The breaking groove (1a) is arranged on a side where the two guard feet (1e) are close to each other.

4. The auxiliary frame for upgrading combined adjustable doors and windows according to claim 1, characterized in that: The adjustable auxiliary frame (1) on each side is equipped with at least two positioning expansion bolts (6), and the positioning expansion bolts (6) are provided with an anchor nut (6a), a positioning nut (6b) and a fixing nut (6c) in sequence from bottom to top; A first fixing hole (1b) is reserved on the top of the adjustable auxiliary frame (1), and a second fixing hole (1d) is provided on the horizontal plate (1c) below the first fixing hole (1b). The first fixing hole (1b) is larger than the second fixing hole (1d). The second fixing hole (1d) is used for allowing a positioning expansion bolt (6) connected to the wall to pass through. The first fixing hole (1b) is used for allowing a fixing nut (6c) threadedly connected to the top of the positioning expansion bolt (6) to pass through.

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