High-strength door and window auxiliary frame and preparation method thereof

Abstract

The invention discloses a high-strength door and window auxiliary frame and a preparation method thereof, and relates to the technical field of doors and windows, the high-strength door and window auxiliary frame comprises an auxiliary frame, and the auxiliary frame is used for connecting a door and window and a wall; lifting holes are formed in the upper side wall and the lower side wall of the auxiliary frame, lifting handles are inserted into the lifting holes in a sliding mode, the lifting handles are used for being held by hands when stretching out of the lifting holes, and the auxiliary force application auxiliary frame is installed on a wall. Settlement type locking holes are formed in the two ends of the lifting handle, expansion screws are arranged in the settlement type locking holes, and the ends of the expansion screws extend out of the settlement type locking holes and then are nailed into a wall body; the invention further discloses a preparation method of the high-strength door and window auxiliary frame. The preparation method is used for preparing the high-strength door and window auxiliary frame. The lifting holes formed in the upper side wall and the lower side wall of the auxiliary frame and the lifting handles capable of being inserted in a sliding mode provide bare-handed holding points for installation personnel, meanwhile, under the condition that the wall is uneven, the position of the auxiliary frame relative to the wall can be rapidly corrected, the installation inclination angle is effectively reduced, and the attractiveness and the overall quality of door and window installation are guaranteed.

Description

Technical Field

[0001] This invention relates to the field of door and window technology, specifically to a high-strength door and window subframe and its preparation method. Background Technology

[0002] In the field of building door and window installation, the door and window subframe, as a crucial component connecting doors and windows to the wall, plays a key role in fixing doors and windows, protecting their edges, and enhancing their overall sealing and stability. Structurally, traditional door and window subframes are mostly simple rectangular frame structures. This structure proves inadequate when dealing with complex and changing building environments and installation requirements. For example, in cases of uneven walls, traditional subframes struggle to quickly correct their position relative to the wall, resulting in significant installation tilt angles and affecting the aesthetics of the door and window installation. Furthermore, the connection methods for traditional subframes are relatively simple, typically using welding or bolts. These methods are prone to loosening and breakage over long-term use, further reducing the overall performance of the doors and windows. Summary of the Invention

[0003] The purpose of this invention is to provide a high-strength door and window subframe and its manufacturing method to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a high-strength door and window subframe, comprising a subframe for connecting doors / windows and walls;

[0005] The upper and lower side walls of the subframe are provided with lifting holes. A lifting handle is slidably inserted into the lifting hole. When the lifting handle extends out of the lifting hole, it is used for hand gripping and assisting in the installation of the subframe on the wall.

[0006] Both ends of the lifting handle are provided with sinking locking holes, and expansion screws are provided in the sinking locking holes. The ends of the expansion screws extend out of the sinking locking holes and are driven into the wall.

[0007] In a further embodiment, when the lifting handle is located inside the lifting hole, its upper and lower ends are flush with the upper and lower openings of the lifting hole.

[0008] In a further embodiment, a strip-shaped limiting beam is fixed between the two longitudinal sidewalls inside the lifting hole, and the lifting handle has a gripping opening that penetrates the front and rear longitudinal sidewalls. The gripping opening is slidably sleeved on the outside of the strip-shaped limiting beam, and the two end sidewalls inside the gripping opening are slidably attached to the two end sidewalls of the strip-shaped limiting beam.

[0009] In a further embodiment, the vertical height inside the holding opening is more than 5 times the height of the strip limiting beam, and the strip limiting beam is located at one end inside the lifting hole near the center of the subframe.

[0010] In a further embodiment, the lifting handle has two adjustment openings that penetrate the front and rear longitudinal side walls and are located on both sides of the handle opening.

[0011] In a further embodiment, the lifting handle has a connecting hole on the side wall facing the center of the subframe that communicates with the adjustment opening, and a recessed rectangular hole on the side wall facing away from the center of the subframe that communicates with the adjustment opening. A rotating rod is rotatably inserted into the connecting hole, the rotating rod extends into the adjustment opening and is provided with a threaded connecting rod, and a straightening column is slidably inserted into the recessed rectangular hole. The straightening column has a threaded groove that is threadedly connected to the threaded connecting rod.

[0012] In a further embodiment, the end of the straightening column away from the rotating rod has a laterally extended portion, which matches the opening of the sinking rectangular hole to prevent the straightening column from completely entering the adjustment opening after it leaves the sinking rectangular hole.

[0013] In a further embodiment, the longitudinal sidewall of the correction column is provided with scale lines.

[0014] A method for preparing a high-strength door and window subframe, characterized by comprising the following steps:

[0015] A1. Place the high-performance resin into a high-speed mixer and stir at 50-60℃ for 10-15 minutes to make the resin temperature uniform. Then add glass fiber, carbon fiber, nano silica and nano calcium carbonate in sequence and continue stirring for 20-30 minutes to make all raw materials fully mixed.

[0016] A2. Cool the well-mixed material to room temperature, then add an appropriate amount of curing agent and continue stirring for 5-10 minutes to ensure that the curing agent and resin are fully mixed.

[0017] A3. Slowly pour the vacuum-degassed mixture into the mold, use a vibration platform to gently vibrate the mold to distribute the mixture evenly in the mold, place the mold containing the mixture into a hot press, and mold it according to the following process parameters;

[0018] A4. Place the molded door and window subframes into a high-temperature oven to eliminate internal stress.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] 1. The lifting holes and slidable lifting handles on the upper and lower side walls of the subframe of the present invention provide a handhold for the installer, allowing for easy application of force when the subframe is installed on the wall, greatly improving the convenience and efficiency of installation. At the same time, the sinking locking holes and expansion screws at both ends of the lifting handle can firmly nail the subframe into the wall, ensuring a stable connection between the subframe and the wall.

[0021] 2. This invention, through the adjustment function of the lifting handle, can quickly correct the position of the subframe relative to the wall when the wall is uneven, effectively reducing the installation tilt angle and ensuring the aesthetics and overall quality of the door and window installation. Attached Figure Description

[0022] Figure 1 and Figure 2 All of these are schematic diagrams of the main structure of the present invention;

[0023] Figure 3 This is a cross-sectional view of the frame structure of the present invention;

[0024] Figure 4 This is a partial cross-sectional view of the subframe structure of the present invention;

[0025] Figure 5 For the present invention Figure 1 Enlarged view of the structure at point A in the middle;

[0026] Figure 6 For the present invention Figure 1 Enlarged view of the structure at point B in the middle;

[0027] Figure 7 For the present invention Figure 2 Enlarged view of the structure at point C;

[0028] Figure 8 and Figure 9 All are cross-sectional views of the lifting handle structure of the present invention;

[0029] Figure 10 This is a partial structural cross-sectional view of the lifting handle of the present invention;

[0030] Figure 11 This is a schematic diagram of the assembly structure of the rotating rod and the straightening column of the present invention.

[0031] In the diagram: 1. Subframe; 11. Lifting hole; 12. Strip limiting beam; 2. Lifting handle; 21. Sinking locking hole; 22. Rotating rod; 23. Correcting column; 24. Expansion screw. Detailed Implementation

[0032] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] This embodiment provides a high-strength door and window subframe, such as... Figure 1 and Figure 2 As shown, it includes a subframe 1, which is used to connect doors, windows, and walls. The inner four sides of the subframe 1 are provided with glass mounting grooves for securing the glass to the surrounding walls. Of course, the size and shape of the subframe 1 can be customized according to actual installation requirements.

[0034] The upper and lower side walls of the subframe 1 are provided with lifting holes 11. A lifting handle 2 is slidably inserted into the lifting hole 11. When the lifting handle 2 extends out of the lifting hole 11, it is used for hand gripping and assisting in the installation of the subframe 1 on the wall. When the lifting handle 2 is located in the lifting hole 11, its upper and lower ends are flush with the upper and lower openings of the lifting hole 11.

[0035] like Figure 10 As shown, sinking locking holes 21 are provided at both ends of the lifting handle 2. Expansion screws 24 are provided in the sinking locking holes 21. The ends of the expansion screws 24 extend out of the sinking locking holes 21 and are driven into the wall.

[0036] like Figure 3 and Figure 4 As shown, a strip-shaped limiting beam 12 is fixed between the two longitudinal sidewalls inside the lifting hole 11. The lifting handle 2 has a gripping opening that penetrates the front and rear longitudinal sidewalls. The gripping opening is slidably fitted onto the outside of the strip-shaped limiting beam 12, and the two end sidewalls inside the gripping opening are slidably fitted to the two end sidewalls of the strip-shaped limiting beam 12. The design of the cooperation between the strip-shaped limiting beam 12 inside the lifting hole 11 and the gripping opening of the lifting handle 2 ensures that the lifting handle 2 can only move in a straight line along the strip-shaped limiting beam 12 during the lifting process, avoiding the lifting handle 2 from shaking or deviating inside the lifting hole 11, thus enhancing the stability of the structure. At the same time, the vertical height inside the gripping opening is more than 5 times the height of the strip-shaped limiting beam 12, and the strip-shaped limiting beam 12 is located at one end inside the lifting hole 11 near the center of the subframe 1.

[0037] Meanwhile, the lifting handle 2 has an adjustment opening that runs through both the front and rear longitudinal side walls, such as... Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 and Figure 11As shown, there are two adjustment openings, located on both sides of the handle opening. The lifting handle 2 has a connecting hole on its side wall facing the center of the subframe 1, which communicates with the adjustment opening. The lifting handle 2 also has a recessed rectangular hole on its side wall facing away from the center of the subframe 1, which communicates with the adjustment opening. A rotating rod 22 is rotatably inserted into the connecting hole, extending into the adjustment opening and having a threaded connection rod. A corrective column 23 is slidably inserted into the recessed rectangular hole, and the corrective column 23 has a threaded groove that is threadedly connected to the threaded connection rod.

[0038] The combination design of the adjustment opening on the lifting handle 2, the rotating rod 22, and the straightening column 23 provides flexible adjustment functionality for the installation of the subframe 1. By rotating the rotating rod 22, the threaded connecting rod can be rotated, which in turn allows the straightening column 23 to slide up and down within the recessed rectangular hole, enabling fine-tuning of the subframe 1's position. Furthermore, the straightening column 23 has graduation lines on its longitudinal sidewall. This graduation line design makes the adjustment process more precise, allowing for accurate control of the straightening amount of the subframe 1 according to actual installation requirements, greatly improving the precision and accuracy of the installation.

[0039] The end of the straightening column 23 away from the rotating rod 22 has a lateral extension, which matches the opening of the sinking rectangular hole to prevent the straightening column 23 from completely entering the adjustment opening after it leaves the sinking rectangular hole.

[0040] When installing the subframe 1, pull the lifting handle 2 out of the lifting hole 11 to its maximum height, ensuring the opening is fully exposed. This allows construction workers to apply force to lift the subframe 1 and embed it into the window opening in the wall. Use wooden wedges to temporarily fix the four corners. At the same time, hold the lifting handle 2 with both hands and apply even external force to fine-tune the position of the subframe 1, ensuring that the gap between the subframe 1 and the wall is uniform.

[0041] Then push the lifting handle 2 back into the lifting hole 11, making its upper and lower ends flush with the lifting hole 11 to avoid interfering with subsequent construction. Use a laser level or straightedge to check the verticality and horizontality of the subframe 1 after installation, mark the direction and value of the deviation, and select the corresponding adjustment opening according to the direction of the deviation: if the left side of the subframe 1 is tilted, rotate the rotating rod 22 in the left adjustment opening and operate it through the Allen wrench in the connecting hole. Horizontal correction: if the lower side of the subframe 1 sinks, rotate the rotating rod 22 in the lower adjustment opening. The rotating rod 22 drives the threaded connecting rod to rotate, driving the correction column 23 to slide in the sinking rectangular hole. The scale line helps to accurately control the displacement, and the deviation change of the subframe 1 can be observed in real time.

[0042] After adjustment, insert expansion screws 24 into the sink-type locking holes 21 at both ends of the lifting handle 2, and use an electric drill to drive the screws into the wall to fix the upper and lower side walls of the subframe 1.

[0043] This invention also discloses a method for preparing a high-strength door and window subframe, the high-strength door and window subframe 1 being prepared comprising the following steps:

[0044] A1. Place the high-performance resin in a high-speed mixer and stir at 50-60℃ for 10-15 minutes to ensure uniform resin temperature. Then, add glass fiber, carbon fiber, nano-silica, and nano-calcium carbonate sequentially, and continue stirring for 20-30 minutes to ensure thorough and uniform mixing of all raw materials. Using high-performance resin as the matrix, with the addition of glass fiber and carbon fiber for reinforcement, and inorganic nanoparticles such as nano-silica and nano-calcium carbonate, the prepared composite material exhibits high strength, good weather resistance, and dimensional stability. The synergistic effect of glass fiber and carbon fiber achieves an optimal balance between strength and weight in the composite material, while the filling of nanoparticles further enhances the interfacial bonding force, improving the material's strength and hardness. Door and window subframes made of this high-strength material can better withstand the weight of doors and windows and the forces of the external environment, extending their service life.

[0045] A2. Cool the well-mixed material to room temperature, then add an appropriate amount of curing agent and continue stirring for 5-10 minutes to ensure that the curing agent and resin are fully mixed.

[0046] A3. Slowly pour the vacuum-degassed mixture into the mold. Use a vibration platform to gently vibrate the mold to ensure even distribution of the mixture. Place the mold containing the mixture into a hot press and mold according to the following process parameters: The molding process is as follows: Heating stage: Increase the mold temperature to 120-150℃ at a heating rate of 5-10℃ / min and hold for 10-15 minutes to fully soften the mixture. Pressurization stage: After holding at this temperature, gradually apply pressure to 10-15MPa and maintain this pressure. Continue holding for 20-30 minutes to allow the mixture to flow fully and fill the mold cavity under pressure. Cooling stage: After holding at this temperature, stop heating and reduce the mold temperature to room temperature at a cooling rate of 3-5℃ / min while maintaining the pressure, until the mold is completely cooled. During the cooling process, the composite material gradually solidifies and forms the final shape.

[0047] A4. Place the molded door and window subframe 1 into a high-temperature oven to eliminate internal stress. Heating stage: Increase the oven temperature to 180-200℃ at a rate of 2-3℃ / min, and hold for 2-3 hours to allow further cross-linking and rearrangement of the molecular chains in the composite material, thus eliminating internal stress. Cooling stage: After the holding period, stop heating, open the oven door, and allow the door and window subframe 1 to cool naturally to room temperature in the air. During the cooling process, care should be taken to avoid collisions and compression of the door and window subframe 1.

[0048] The manufacturing process of compression molding followed by heat treatment ensures the dimensional accuracy and surface quality of the subframe 1. Compression molding allows the composite material to be rapidly formed in a mold, while the heat treatment process eliminates the internal stress generated during compression molding, improves the internal structure of the material, and enhances the dimensional stability and weather resistance of the subframe 1.

[0049] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-strength door and window subframe, characterized in that, include: Subframe (1), the subframe (1) is used to connect doors, windows and walls; The upper and lower side walls of the subframe (1) are provided with lifting holes (11). A lifting handle (2) is slidably inserted into the lifting hole (11). When the lifting handle (2) extends out of the lifting hole (11), it is used to hold by hand and assist in applying force to install the subframe (1) on the wall. Both ends of the lifting handle (2) are provided with sinking locking holes (21), and expansion screws (24) are provided in the sinking locking holes (21). The ends of the expansion screws (24) extend out of the sinking locking holes (21) and are driven into the wall.

2. The high-strength door and window subframe according to claim 1, characterized in that, When the lifting handle (2) is located inside the lifting hole (11), its upper and lower ends are flush with the upper and lower openings of the lifting hole (11).

3. The high-strength door and window subframe according to claim 1, characterized in that, A strip-shaped limiting beam (12) is fixed between the two longitudinal side walls inside the lifting hole (11). The lifting handle (2) has a grip opening that passes through the front and rear longitudinal side walls. The grip opening is slidably sleeved on the outside of the strip-shaped limiting beam (12), and the two end side walls inside the grip opening are slidably attached to the two end side walls of the strip-shaped limiting beam (12).

4. The high-strength door and window subframe according to claim 3, characterized in that, The vertical height inside the holding opening is more than 5 times the height of the strip limiting beam (12), and the strip limiting beam (12) is located at one end inside the lifting hole (11) near the center of the subframe (1).

5. The high-strength door and window subframe according to claim 1, characterized in that, The lifting handle (2) has an adjustment opening that runs through the front and rear longitudinal side walls. There are two adjustment openings, which are located on both sides of the handle opening.

6. The high-strength door and window subframe according to claim 5, characterized in that, The lifting handle (2) has a connecting hole on the side wall facing the center of the subframe (1) that communicates with the adjustment opening. The lifting handle (2) has a sinking rectangular hole on the side wall facing away from the center of the subframe (1) that communicates with the adjustment opening. A rotating rod (22) is rotatably inserted into the connecting hole. The rotating rod (22) extends into the adjustment opening and is provided with a threaded connecting rod. A straightening column (23) is slidably inserted into the sinking rectangular hole. The straightening column (23) is provided with a threaded groove that is threadedly connected to the threaded connecting rod.

7. The high-strength door and window subframe according to claim 6, characterized in that, The end of the straightening column (23) away from the rotating rod (22) has a lateral extension, which matches the opening of the sinking rectangular hole to prevent the straightening column (23) from completely entering the adjustment opening after it leaves the sinking rectangular hole.

8. The high-strength door and window subframe according to claim 7, characterized in that, The correction column (23) has scale lines on its longitudinal sidewall.

9. A method for preparing a high-strength door and window subframe (1), used to prepare the high-strength door and window subframe (1) according to any one of claims 1-8, characterized in that, Includes the following steps: A1. Place the high-performance resin into a high-speed mixer and stir at 50-60℃ for 10-15 minutes to make the resin temperature uniform. Then add glass fiber, carbon fiber, nano silica and nano calcium carbonate in sequence and continue stirring for 20-30 minutes to make all raw materials fully mixed. A2. Cool the well-mixed material to room temperature, then add an appropriate amount of curing agent and continue stirring for 5-10 minutes to ensure that the curing agent and resin are fully mixed. A3. Slowly pour the vacuum-degassed mixture into the mold, use a vibration platform to gently vibrate the mold to distribute the mixture evenly in the mold, place the mold containing the mixture into a hot press, and mold it according to the following process parameters; A4. Place the molded door and window subframe (1) into a high-temperature oven to eliminate internal stress.

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