A wood-plastic subframe for doors and windows with enhanced fixed structure

Abstract

This utility model discloses a reinforced and fixed wood-plastic composite subframe for doors and windows, comprising a subframe body. Both ends of the subframe body have through grooves, which are symmetrically arranged about the vertical central axis of the subframe body. A guide rod is slidably connected within the groove, and a telescopic component is installed within the groove. A support plate is fixedly installed at one end of the guide rod outside the groove, and an installation component is provided on the support plate. Positioning components are provided at both the upper and lower ends of the subframe body. The telescopic component includes a threaded rod, a first bevel gear, and a second bevel gear, and the threaded rod is rotatably connected within the groove. This reinforced and fixed wood-plastic composite subframe for doors and windows enhances the fit with the wall and the structural stability of the subframe body through the telescopic movement of the support plate, thereby improving the overall load-bearing capacity and preventing deformation and displacement, thus improving the safety and reliability of doors and windows.

Description

Technical Field

[0001] This utility model relates to the technical field of doors and windows, specifically to a wood-plastic subframe for doors and windows with an enhanced fixing structure. Background Technology

[0002] The combustible gas sensing automatic window opening function means that when a combustible gas leak is detected indoors, the system automatically activates the window opening device. This function is usually used in conjunction with gas sensors, control units, and electric window openers. The purpose is to reduce the concentration of combustible gases indoors through ventilation, thereby reducing the risk of fire or explosion. At the same time, it is integrated into the wood-plastic composite frame during the installation of doors and windows. The wood-plastic composite frame is a material used for door and window installation, which is usually used to improve the sound insulation, heat insulation, and sealing performance of doors and windows. It is made of wood-plastic composite material, which combines the advantages of wood and plastic and has waterproof and corrosion-resistant properties. For example, Chinese utility model patent CN217461847U proposes an improved wood-plastic composite door and window subframe, which includes a subframe body. Bolt mounting seats are symmetrically arranged at the top and bottom ends of the left and right sides of the subframe body. An inner frame for door and window installation is provided within the inner cavity of the subframe body. Guide slots are symmetrically opened at the top and bottom ends of the left and right sides of the inner frame. Recesses are opened on the side walls at the front ends of the four guide slots in two sets. L-shaped guide rods are fixedly connected to the top and bottom ends of the left and right sides of the rear end of the inner cavity of the subframe body. This improved wood-plastic composite door and window subframe, by setting a top plate and using a return spring, can easily increase the stability of the subframe body after installation. The setting of pins, pin holes, a second fixing hole, and a receiving groove facilitates the storage and fixing of the top plate. When the subframe body is inserted into the inner cavity of the opening, the pin is pulled out, causing the four top plates to automatically pop out, which is convenient, quick, and improves work efficiency.

[0003] Based on existing solutions and actual use, current wood-plastic composite subframes for doors and windows still have some problems. For example, because the subframe needs to bear the weight of the door frame, wind load, and repeated reset during opening and closing, it is prone to deformation, loosening, or even displacement. This can lead to the door and window not fitting properly with the frame, rainwater leakage, difficulty in opening, and vibration noise after long-term use, posing a safety risk. Utility Model Content

[0004] To address the problems mentioned in the background section, this invention provides a reinforced wood-plastic composite subframe for doors and windows, which enhances the overall load-bearing capacity and prevents deformation and displacement, thereby improving the safety and reliability of doors and windows.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a wood-plastic subframe for doors and windows with enhanced fixing structure, comprising a subframe body: The subframe body has through slots at both its left and right ends, and the through slots are symmetrically arranged about the vertical central axis of the subframe body. A guide rod is slidably connected in the through slot, and a telescopic component is provided in the through slot. A support plate is fixedly installed at one end of the guide rod outside the through slot, and an installation component is provided on the support plate. Positioning components are provided at both the upper and lower ends of the subframe body.

[0006] By adopting the above technical solution, the support plate can be evenly distributed at both ends of the subframe body through the cooperation of the upper and lower symmetrical through grooves and guide rods, thus avoiding the tilting of the subframe body caused by the concentration of force on one side.

[0007] As a preferred technical solution of this utility model, the telescopic component includes a threaded rod, a first bevel gear and a second bevel gear, and the threaded rod is rotatably connected to the groove of the through groove. One end of the threaded rod is fixedly installed with the first bevel gear, and the front end of the through groove is rotatably connected with the second bevel gear. The outer side of the second bevel gear extends to the outside of the subframe body, and the second bevel gear meshes with the first bevel gear.

[0008] By adopting the above technical solution, the meshing of the first bevel gear and the second bevel gear can be driven by the threaded rod to slide in opposite directions, thereby achieving precise adjustment.

[0009] As a preferred embodiment of this utility model, the rod body of the threaded rod is connected to the guide rod by threads, and the length of the guide rod body is less than the length of the through groove body.

[0010] By adopting the above technical solution, adjustment and self-locking can be achieved through the cooperation between the threaded rod and the guide rod. At the same time, the cooperation between the guide rod and the through groove can adapt to different installation scenarios.

[0011] As a preferred technical solution of this utility model, the mounting assembly includes a sliding groove, a mounting plate, a first hole rod, a positioning hole, and screws. The front and rear ends of the support plate are provided with sliding grooves. The upper and lower ends of the sliding groove are slidably connected to the mounting plate, and the first hole rod is fixedly installed at one end of the mounting plate. The front and rear ends of the support plate are provided with positioning holes in an array. The upper and lower ends of the mounting plate are connected with screws by threads.

[0012] By adopting the above technical solution, the mounting plate of the upper and lower sliding rods can select multiple fixing points according to the wall load, so that the force of the subframe body is evenly distributed to the wall.

[0013] As a preferred embodiment of this utility model, the screw shank is connected to the positioning hole by a thread, and the mounting plate is configured in an "L" shaped structure.

[0014] By adopting the above technical solution, the engagement between the screw and the positioning hole can prevent the mounting plate from shaking and enable quick adjustment of the mounting plate. At the same time, the "L" shape of the mounting plate can increase its contact area.

[0015] As a preferred technical solution of this utility model, the positioning component includes a positioning plate, a spring telescopic rod, a top plate, and a second hole rod. The positioning plate is fixedly installed at both the upper and lower ends of the subframe body, and the positioning plate is set in an "L" shaped structure. The spring telescopic rod is fixedly installed at both the left and right ends of the positioning plate, and the top plate is fixedly installed at the top of the spring telescopic rod. The second hole rod is installed in an array at the front end of the positioning plate.

[0016] By adopting the above technical solution, a right-angle reference is formed by using the positioning plate as an "L"-shaped vertical panel, thereby achieving horizontal and vertical calibration. At the same time, the cooperation between the spring telescopic rod and the top plate can keep the subframe body in a centered and fitted state.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows: the reinforced fixed structure of the wood-plastic subframe for doors and windows can enhance the embedding fit with the wall and the structural stability of the subframe body through the expansion and contraction of the support plate, thereby improving the overall load-bearing capacity and preventing deformation and displacement, thus improving the safety and reliability of doors and windows. At the same time, the adjustment of the first hole rod can enhance the overall load distribution, and transfer the load more evenly to the wood-plastic frame and the main structure, making the sealing more stable. Then, the positioning plate and the top plate can form a positioning benchmark that can be repeatedly aligned, thereby achieving accurate initial alignment, improving assembly precision, and avoiding deviation.

[0018] 1. This utility model comprises a through groove, a guide rod, a threaded rod, a first bevel gear, a second bevel gear, and a support plate. The first and second bevel gears mesh with each other, and by rotating the second bevel gear, the threaded rod is driven to rotate within the through groove. Simultaneously, the threaded rod is connected to the guide rod by threads. Since the support plate is fixedly installed at one end of the guide rod outside the through groove, the rotation of the threaded rod can cause the guide rod to extend and retract, thereby making the support plate fit against the inner wall at a designated position, thus supporting the entire subframe body. The extension and retraction of the support plate can enhance the embedding fit with the wall and the structural stability of the subframe body, thereby improving the overall load-bearing capacity, reducing local stress concentration, and preventing deformation and displacement, thus improving the safety and reliability of doors and windows. 2. This utility model, by setting a support plate, sliding groove, mounting plate, first hole rod, positioning hole and screw, releases the fixing between the mounting plate and the support plate by screwing the screw into the positioning hole, and then pushes the mounting plate to slide in the groove according to the installation situation. At the same time, the first hole rod is installed at one end of the mounting plate, which can fix the support plate through the cooperation between the first hole rod and the mounting plate and install the sub-frame body. By adjusting the first hole rod, the overall load distribution can be enhanced, the load can be transferred more evenly to the wood-plastic frame and the main structure, and the ideal distance between the frame and the fan body can be achieved, making the sealing more stable. 3. This utility model, by setting a positioning plate, a spring telescopic rod, a top plate, and a second hole rod, uses an "L"-shaped positioning plate to fit snugly against the designated mounting frame. The spring telescopic rod's elasticity causes the top plate to extend and retract, thus fitting the top plate against the inner wall of the designated mounting frame. Simultaneously, the front end of the positioning plate is fixedly mounted with the second hole rod in an array configuration. The second hole rod, in conjunction with positioning bolts, secures the frame body. The positioning plate and top plate form a repeatable positioning reference, ensuring accurate initial alignment, improving assembly precision, and preventing misalignment. Attached Figure Description

[0019] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the main structure of this utility model; Figure 2 This is a side view of the structure of this utility model; Figure 3 This is a schematic diagram of the overall structure of this utility model; Figure 4 This is a schematic diagram of the main sectional view of the main body of the attached frame of this utility model; Figure 5 This is a top sectional view of the main body of the attached frame of this utility model.

[0020] In the diagram: 1. Subframe body; 2. Through groove; 3. Guide rod; 4. Threaded rod; 5. First bevel gear; 6. Second bevel gear; 7. Support plate; 8. Sliding groove; 9. Mounting plate; 10. First hole rod; 11. Positioning hole; 12. Screw; 13. Positioning plate; 14. Spring telescopic rod; 15. Top plate; 16. Second hole rod. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-5 The present invention provides the following technical solution: a door and window wood-plastic subframe with enhanced fixing structure, including subframe body 1, through groove 2, guide rod 3, threaded rod 4, first bevel gear 5, second bevel gear 6, support plate 7, sliding groove 8, mounting plate 9, first hole rod 10, positioning hole 11, screw 12, positioning plate 13, spring telescopic rod 14, top plate 15, and second hole rod 16.

[0023] First, as attached Figure 1 Appendix Figure 2 and attached Figure 3 As shown, when installing the subframe body 1, positioning plates 13 are fixedly installed at both the upper and lower ends of the subframe body 1, and spring telescopic rods 14 are fixedly installed at both the left and right ends of the positioning plates 13. Each spring telescopic rod 14 includes a fixed sleeve, a movable rod, and a built-in spring. The movable rod can extend and retract along the fixed sleeve, making the cooperation between multiple sets of spring telescopic rods 14 more stable during use and providing sufficient restoring force. A top plate 15 is fixedly installed on the top of the spring telescopic rod 14. The positioning plates 13 are also set in an "L"-shaped structure, and the front end of the positioning plates 13 is fixedly installed with second hole rods 16 in an array configuration. When the subframe body 1 is placed in the designated frame, the upper and lower top plates 15 adhere to the upper and lower inner walls of the frame under the elastic force of the spring telescopic rods 14. Then, the subframe body 1 is pushed into the frame, causing the positioning plates 13 to... The end sidewall is fitted together with the frame, thereby positioning the subframe body 1 to a suitable depth and positioning the position of the subframe body 1. Then, the external bolt is inserted into the inside of the second hole rod 16, and the external bolt is screwed to fix the subframe body 1 and the frame together. After the subframe body 1 is installed, the window with combustible gas sensing automatic window opening is installed on the subframe body 1. It can be adapted to be installed at the key part of the connection between the subframe body 1 and the door and window sash to establish a circuit connection. The positioning plate 13 and the top plate 15 can form a positioning reference that can be repeatedly aligned, which facilitates the installation of the window and prevents the window from not being accurately placed in the frame of the subframe body 1 during installation, thereby forming an accurate initial alignment, thereby improving the assembly accuracy and avoiding offset. It can also ensure that the door and window sash always moves along the preset trajectory during the opening process, preventing the window opening failure due to structural loosening. As attached Figure 1 Appendix Figure 2 Appendix Figure 3 Appendix Figure 4 and attached Figure 5 As shown, after the subframe body 1 is installed in the designated position, the second bevel gear 6 can be rotated. Since both ends of the subframe body 1 have through slots 2, and these slots 2 are symmetrically arranged about the vertical central axis of the subframe body 1, a guide rod 3 is slidably connected within the slots 2. A threaded rod 4 is rotatably connected inside the slots 2, and the rod of the threaded rod 4 is threadedly connected to the guide rod 3. The length of the guide rod 3 is less than the length of the slot 2. A support plate 7 is fixedly installed at one end of the guide rod 3 outside the slot 2, and a first bevel gear 5 is fixedly installed at one end of the threaded rod 4. The first bevel gear 5 meshes with the second bevel gear 6 at the front end inside the slot 2. When the second bevel gear 6 is rotated, the engagement between the second bevel gear 6 and the first bevel gear 5... The threaded rods 4 inside the two sets of through grooves 2 rotate in opposite directions. The rotation of the threaded rods 4 can drive the guide rods 3 to slide in the through grooves 2. At the same time, the sliding of the guide rods 3 can drive the support plate 7 to extend and retract, so that the support plate 7 fits against the left and right side walls of the designated frame. The extension and retraction of the support plate 7 can enhance the embedded or attached frame structure. The stable support system formed by the through grooves 2, guide rods 3 and support plate 7 can prevent the force generated when the door and window sash is opened from causing the attached frame body 1 to shift or deform, ensuring that the window opening action is smooth and accurate. The positioning effect of the positioning plate 13 and the top plate 15 can ensure the stability of the window during repeated opening and closing, thereby improving the overall load-bearing capacity, effectively dispersing the window's own weight, wind load and the force generated by the repeated reset of the window, and preventing deformation and displacement, thereby improving the stability of the window during use. As attached Figure 1 Appendix Figure 2 and attached Figure 3As shown, after the entire frame of the subframe body 1 is reinforced by the telescopic extension of the support plate 7, sliding grooves 8 are provided at both the front and rear ends of the support plate 7, and mounting plates 9 are slidably connected to the upper and lower ends of the sliding grooves 8. Because the mounting plates 9 are set in an "L" shape, they also fit against the side wall of the frame. At the same time, positioning holes 11 are arrayed at both the front and rear ends of the support plate 7, and screws 12 are threadedly connected to the upper and lower ends of the mounting plate 9. The shank of the screw 12 is threaded into the positioning hole 11, allowing the screw 12 to be screwed out of the positioning hole 11, thus releasing the fixation between the mounting plate 9 and the support plate 7. Then, the mounting plate 9 is adjusted according to the mounting holes of the frame. Since a first hole rod 10 is fixedly installed at one end of the mounting plate 9, when the mounting plate 9 is pushed, The mounting plate 9 slides within the sliding groove 8, simultaneously moving the first hole rod 10. This allows the first hole rod 10 to be pushed to the appropriate position based on actual conditions. Alternatively, the mounting plate 9 can be pushed alternately, resulting in staggered arrangement of the front and rear first hole rods 10. Then, external bolts are inserted into the holes of the first hole rod 10, and the support plate 7 is fixed through the cooperation between the external bolts and the first hole rod 10. Simultaneously, the subframe body 1 is fixed. Adjusting the first hole rod 10 enhances the overall load distribution. The subframe body 1, the first hole rod 10, screws 12, the second hole rod 16, and the spring telescopic rod 14 ensure that after the door / window sash is closed, it fits tightly against the subframe body 1, restoring good sealing, sound insulation, and heat insulation performance. This ensures the rapid restoration of normal door / window functionality, and more evenly distributes the load to the wood-plastic frame and main structure, resulting in more stable sealing. Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A wood-plastic subframe for doors and windows with enhanced fixing structure, characterized in that: Includes the main body of the subframe (1). The subframe body (1) has through slots (2) at both the left and right ends, and the through slots (2) are symmetrically arranged about the vertical central axis of the subframe body (1). A guide rod (3) is slidably connected in the slot of the through slot (2), and a telescopic component is provided in the slot of the through slot (2). A support plate (7) is fixedly installed at one end of the guide rod (3) outside the through slot (2), and an installation component is provided on the plate of the support plate (7). Positioning components are provided at both the upper and lower ends of the subframe body (1).

2. The door and window wood-plastic subframe with reinforced fixing structure according to claim 1, characterized in that: The telescopic assembly includes a threaded rod (4), a first bevel gear (5), and a second bevel gear (6). The threaded rod (4) is rotatably connected to the groove of the through slot (2). The first bevel gear (5) is fixedly installed at one end of the threaded rod (4). The second bevel gear (6) is rotatably connected to the front end of the groove of the through slot (2). The outer side of the second bevel gear (6) extends to the outside of the subframe body (1), and the second bevel gear (6) meshes with the first bevel gear (5).

3. The door and window wood-plastic subframe with reinforced fixing structure according to claim 2, characterized in that: The threaded rod (4) is connected to the guide rod (3) by threads, and the length of the guide rod (3) is less than the length of the through groove (2).

4. The door and window wood-plastic subframe with reinforced fixing structure according to claim 1, characterized in that: The mounting assembly includes a sliding groove (8), a mounting plate (9), a first hole rod (10), a positioning hole (11), and screws (12). The front and rear ends of the support plate (7) are provided with sliding grooves (8). The upper and lower ends of the sliding groove (8) are slidably connected to the mounting plate (9). The first hole rod (10) is fixedly installed at one end of the mounting plate (9). The front and rear ends of the support plate (7) are provided with positioning holes (11) in an array. The upper and lower ends of the mounting plate (9) are connected with screws (12) by threads.

5. A door and window wood-plastic subframe with an enhanced fixing structure according to claim 4, characterized in that: The shank of the screw (12) is connected to the positioning hole (11) by threads, and the mounting plate (9) is set in an "L" shaped structure.

6. The door and window wood-plastic subframe with an enhanced fixing structure according to claim 1, characterized in that: The positioning assembly includes a positioning plate (13), a spring telescopic rod (14), a top plate (15), and a second hole rod (16). The positioning plate (13) is fixedly installed at both the upper and lower ends of the subframe body (1). The positioning plate (13) is set in an "L" shaped structure. The spring telescopic rod (14) is fixedly installed at both the left and right ends of the positioning plate (13). The top plate (15) is fixedly installed at the top of the spring telescopic rod (14). The second hole rod (16) is installed in an array at the front end of the positioning plate (13).

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