High-strength and high-toughness PVC profile
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUXI FORE-TECH CO LTD
- Filing Date
- 2025-08-28
- Publication Date
- 2026-07-24
AI Technical Summary
The lack of reinforcing components in the hollow cavity of existing PVC profiles results in weak bending resistance and reduced service life.
Reinforcing members, including reinforcing frames, elastic inserts, and elastic crossbars, are inserted into the inner and outer cavities of the PVC profile body to form a grid-like support structure. The air layer buffers external impacts, disperses stress, and avoids stress concentration.
It improves the overall strength and toughness of PVC profiles, enhances structural stability, and extends service life.
Smart Images

Figure CN224551278U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of PVC profiles, and in particular to a high-strength and high-toughness PVC profile. Background Technology
[0002] PVC profiles are building materials with specific cross-sectional shapes, made from polyvinyl chloride resin as the main raw material, with the addition of plasticizers, stabilizers, fillers, modifiers, ultraviolet absorbers and other additives, and produced by high-temperature extrusion molding.
[0003] The existing announcement number is CN210716907U, entitled "An Assembled PVC Profile," which includes a profile top cover, an installation groove, an assembly limiting block, a first positioning block, a second positioning block, a load-bearing plate, a profile main component, a locking block, and a fixing groove for the first positioning block. The beneficial effects of this utility model are: the installation groove and locking block facilitate the assembly of the PVC profile top cover and the profile main component, and ensure the firmness of the connection between the profile top cover and the profile main component; the assembly limiting block facilitates the connection of the PVC profile with other profiles of other shapes, and ensures the tightness of the connection, preventing other profiles from falling off; the first positioning block and the second positioning block ensure the firmness of the PVC profile after assembly, and provide two firmness options to prevent asymmetrical displacement between individual profile main components; the load-bearing plate enhances the strength of the PVC profile, evenly distributes the force on the PVC profile, and extends the service life of each component.
[0004] Regarding the aforementioned technologies, the inventors discovered that the PVC profiles adopt an internal hollow structure to reduce their weight. However, the hollow cavity of the PVC profiles lacks reinforcing components. The PVC profiles using ordinary hollow structures achieve significant weight reduction but have weak bending resistance and are prone to deformation under stress, resulting in a reduced service life. Utility Model Content
[0005] In order to overcome the lack of reinforcing components in the hollow cavity of existing PVC profiles, the above-mentioned PVC profiles adopt ordinary hollow structures, which significantly reduce weight but have weak bending resistance and are prone to deformation under stress, resulting in a reduced service life of PVC profiles. This application provides a high-strength and high-toughness PVC profile.
[0006] The high-strength, high-toughness PVC profile provided in this application adopts the following technical solution: A high-strength and high-toughness PVC profile includes a PVC profile body and reinforcing members. The PVC profile body has an inner cavity in the center and outer cavities on both sides. The reinforcing members include a reinforcing frame, elastic inserts, and elastic crossbars. The reinforcing frame is inserted into the inner cavity of the PVC profile body. Two elastic inserts are fixed along the length direction on both sides of one end of the reinforcing frame. Multiple elastic crossbars are arranged perpendicularly and alternately along the length direction on the elastic inserts. An arc-shaped reinforcing block is provided at the intersection of the elastic crossbars and the elastic inserts. The elastic inserts are inserted into the outer cavity of the PVC profile body. An I-shaped reinforcing bracket is vertically fixed inside the reinforcing frame, and multiple reinforcing brackets are fixed along the length direction.
[0007] By adopting the above technical solution, in order to increase the overall strength of the PVC profile body during use, the reinforcing frame of the reinforcing member is assembled and inserted into the inner cavity of the PVC profile body. At the same time, the elastic strips on both sides of the reinforcing frame are inserted into the outer cavities on both sides of the PVC profile body. The multiple elastic horizontal bars on the elastic strips press against the inner cavity of the PVC profile body. Utilizing the inner and outer cavities of the PVC profile body, the outer cavity forms a closed buffer cavity, which can buffer external impacts through an air layer, while maintaining structural stability with reduced material usage. The reinforcing frame inserted into the inner and outer cavities of the PVC profile body... The reinforcing frame and elastic inserts in the reinforcement components utilize multiple reinforcing supports fixed horizontally and vertically within the reinforcing frame to further enhance its support stability. Simultaneously, multiple elastic horizontal bars are vertically and intersecting along the length of the elastic inserts. The ends of these horizontal bars press against the inner wall of the PVC profile body's cavity, forming a grid-like support structure that disperses lateral forces. Circular reinforcing blocks are located at the intersections of the horizontal and vertical bars to prevent stress concentration at the rib connection points, further increasing the overall support and reinforcement of the PVC profile body. The reinforcement components enhance the strength and toughness of the PVC profile body.
[0008] Optionally, both sides of the inner cavity of the PVC profile body are horizontally fixed with inner clamping cavities along the length direction, and the vertical end faces of the reinforcing frame are horizontally provided with clamping grooves, which are engaged with the inner clamping cavities.
[0009] By adopting the above technical solution, the card slot on the outside of the insertion frame and the card cavity on the inside are strengthened to make a horizontal sliding guide for inserting the reinforcing insertion frame into the inner cavity of the PVC profile body, thus completing the reinforcing part guide insertion and assembly in the PVC profile body.
[0010] Optionally, a first assembly part is integrally formed on the outer top surface of the PVC profile body along the length direction, and a second assembly part is integrally formed on the outer vertical end face of one side of the PVC profile body along the length direction.
[0011] By adopting the above technical solution, the first and second assembly parts set on the outside of the PVC profile body are used for later assembly on the building structure.
[0012] Optionally, multiple reinforcing frames are horizontally arranged inside the first assembly part along its length, and the multiple reinforcing frames are integrally formed with the first assembly part.
[0013] By adopting the above technical solution, multiple reinforcing frames are horizontally arranged inside the first assembly part along the length direction. The multiple reinforcing frames support the first assembly part, thereby ensuring the overall strength and toughness of the first assembly part.
[0014] Optionally, the inner end of the reinforcing frame is horizontally fixed with a first elastic pressure frame on both the upper and lower sides, and the other end of the reinforcing frame is horizontally fixed with an assembly frame.
[0015] By adopting the above technical solution, the first elastic pressure frame and the assembly frame are respectively set at both ends of the reinforcing insert frame. When multiple PVC profile bodies with reinforcing parts are assembled and extended, the assembly frames at adjacent ends of multiple PVC profile bodies with reinforcing parts are inserted into the interior of the reinforcing insert frame, thus completing the assembly connection of the PVC profile bodies.
[0016] Optionally, the assembly frame at the adjacent end of the reinforcing frame is inserted into the interior of the reinforcing frame, and the upper and lower sides of the assembly frame are horizontally provided with elastic pressure grooves, and the elastic pressure grooves are pressed and inserted into the first elastic pressure frame.
[0017] By adopting the above technical solution, the assembly frames at adjacent ends of multiple PVC profile bodies with reinforcement components are inserted into the interior of the reinforcement frame. The first elastic pressure frame set on the outside of the assembly frame presses against the elastic pressure groove of the assembly frame, thus completing the assembly and splicing of multiple PVC profile bodies with reinforcement components.
[0018] Optionally, a second elastic pressure frame is horizontally fixed on both the left and right sides of the outer side of the assembly frame, and the second elastic pressure frame is inserted into the interior of the reinforcing frame during assembly.
[0019] By adopting the above technical solution, the assembly inserts at adjacent ends of multiple PVC profile bodies with reinforcements are inserted into the interior of the reinforcement insert, which presses against the deformation of the second elastic pressure frame. The deformation force of the second elastic pressure frame presses against the interior of the reinforcement insert, ensuring the effectiveness of the PVC profile body assembly.
[0020] Optionally, multiple support beams are vertically arranged between the two elastic inserts along the length direction, and the upper and lower ends of the multiple support beams are fixed between the two elastic inserts.
[0021] By adopting the above technical solution, the multiple vertically fixed support beams between the two elastic inserts improve the support stability of the two elastic inserts.
[0022] In summary, this application includes at least one of the following beneficial technical effects: In order to increase the overall strength of the PVC profile body during use, the reinforcing frame of the reinforcing member is assembled and inserted into the inner cavity of the PVC profile body. Simultaneously, the elastic strips on both sides of the reinforcing frame are inserted into the outer cavities on both sides of the PVC profile body. Multiple elastic horizontal bars on the elastic strips press against the inner cavity of the PVC profile body. Utilizing the inner and outer cavities of the PVC profile body, the outer cavity forms a closed buffer cavity, which can buffer external impacts through an air layer, maintaining structural stability while reducing material usage. Furthermore, the inner and outer cavities of the PVC profile body... The reinforcing frame and elastic strips inserted into the cavity utilize multiple reinforcing supports fixed horizontally and vertically within the reinforcing frame to further enhance its support stability. Simultaneously, multiple elastic horizontal bars are vertically and intersecting along the length of the elastic strips. The ends of these horizontal bars press against the inner wall of the PVC profile body's cavity, forming a grid-like support structure that disperses lateral forces. Circular reinforcing blocks are located at the intersections of the horizontal and vertical bars to prevent stress concentration at the rib connection points, further increasing the overall support and reinforcement of the PVC profile body. The addition of these reinforcing components increases the strength and toughness of the PVC profile body. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application; Figure 2 This is a schematic diagram of the overall structure of the embodiment of this application in an exploded state; Figure 3 This is a schematic diagram of the structure of the reinforcing member in the disassembled state according to an embodiment of this application; Figure 4 This is a schematic diagram of the elastic insert in the exploded state according to an embodiment of this application; Figure 5 This is a schematic diagram of the PVC profile body in the disassembled state according to an embodiment of this application.
[0024] Explanation of reference numerals in the attached drawings: 1. PVC profile body; 11. Inner cavity; 111. Inner locking cavity; 12. Outer cavity; 13. First assembly part; 14. Reinforcing frame; 15. Second assembly part; 2. Reinforcing component; 21. Reinforcing insert frame; 211. Slot; 22. Reinforcing bracket; 23. First elastic pressure frame; 24. Assembly insert frame; 241. Second elastic pressure frame; 242. Elastic pressure groove; 25. Elastic insert strip; 26. Elastic crossbar; 27. Reinforcing block; 28. Support beam. Detailed Implementation
[0025] The present application will be further described in detail below with reference to the accompanying drawings.
[0026] This application discloses a high-strength, high-toughness PVC profile. (Refer to...) Figure 1 , Figure 2 , Figure 3 and Figure 4 A high-strength and high-toughness PVC profile includes a PVC profile body 1 and a reinforcing member 2. The PVC profile body 1 has an inner cavity 11 in the center and outer cavities 12 on both sides. The reinforcing member 2 includes a reinforcing frame 21, elastic inserts 25 and elastic crossbars 26. The reinforcing frame 21 is inserted into the inner cavity 11 of the PVC profile body 1. Two elastic inserts 25 are fixed along the length direction on both sides of one end of the reinforcing frame 21. Multiple elastic crossbars 26 are arranged perpendicularly and alternately along the length direction on the elastic inserts 25. Arc-shaped reinforcing blocks 27 are provided at the intersection of the elastic crossbars 26 and the elastic inserts 25. The elastic inserts 25 are inserted into the outer cavity 12 of the PVC profile body 1. An I-shaped reinforcing bracket 22 is vertically fixed inside the reinforcing frame 21, and multiple reinforcing brackets 22 are fixed along the length direction.
[0027] By adopting the above technical solution, in order to increase the overall strength of the PVC profile body 1 during use, the reinforcing frame 21 in the reinforcing member 2 is assembled and inserted into the inner cavity 11 of the PVC profile body 1. At the same time, the elastic strips 25 on both sides of the reinforcing frame 21 are respectively inserted into the outer cavities 12 on both sides of the PVC profile body 1. The multiple elastic horizontal strips 26 on the elastic strips 25 press against the inner cavity 11 of the PVC profile body 1. Utilizing the inner cavity 11 and outer cavity 12 of the PVC profile body 1, the outer cavity 12 forms a closed buffer cavity, which can buffer external impacts through the air layer, while maintaining structural stability with reduced material usage. Meanwhile, the inserts in the inner cavity 11 and outer cavity 12 of the PVC profile body 1... The reinforcing frame 21 and elastic insert 25 in the reinforcing member 2 utilize multiple reinforcing brackets 22 that are fixed horizontally and vertically in the reinforcing frame 21 to further improve the support stability of the reinforcing frame 21. At the same time, multiple elastic horizontal bars 26 are arranged vertically and alternately along the length direction on the elastic insert 25. The two ends of the multiple elastic horizontal bars 26 press against the inner wall of the inner cavity 11 of the PVC profile body 1. The elastic horizontal bars 26 and the elastic insert 25 form a grid-like support structure to distribute the lateral force. Circular reinforcing blocks are provided at the intersection of the elastic horizontal bars 26 and the elastic insert 25 to avoid stress concentration at the joint of the ribs, further increasing the overall support and reinforcement of the PVC profile body 1. The setting of the reinforcing member 2 increases the strength and toughness of the PVC profile body 1.
[0028] Reference Figure 3 , Figure 4 and Figure 5The inner cavity 11 of the PVC profile body 1 has two horizontally fixed inner cavities 111 along its length on both sides. The vertical end faces of the reinforcing frame 21 have horizontally opened slots 211, which engage with the inner cavities 111. The slots 211 on the outer side of the reinforcing frame 21 engage with the inner cavities 111, allowing the horizontally sliding reinforcing frame 21 to slide into the inner cavity 11 of the PVC profile body 1, thus completing the guide insertion and assembly of the reinforcing member 2 into the PVC profile body 1. A first assembly part 13 is integrally formed on the outer top surface of the PVC profile body 1 along its length, and a second assembly part 15 is integrally formed on one vertical end face of the outer side of the PVC profile body 1 along its length. The first assembly part 13 and the second assembly part 15 on the outside of the PVC profile body 1 are used for later assembly onto the building structure. Multiple reinforcing frames 14 are horizontally arranged along their length inside the first assembly part 13, and these multiple reinforcing frames 14 are integrally formed with the first assembly part 13. Multiple reinforcing frames 14 are horizontally arranged along the length of the interior of the first assembly part 13. The multiple reinforcing frames 14 support the first assembly part 13, thereby ensuring the overall strength and toughness of the first assembly part 13.
[0029] Reference Figure 3 and Figure 4 The reinforcing frame 21 has a first elastic pressure frame 23 horizontally fixed on both the upper and lower sides of one end, and an assembly frame 24 horizontally fixed on the other end. With the first elastic pressure frame 23 and the assembly frame 24 respectively at both ends of the reinforcing frame 21, when multiple PVC profile bodies 1 assembled with reinforcing parts 2 are joined and extended, the assembly frames 24 at adjacent ends of the multiple PVC profile bodies 1 assembled with reinforcing parts 2 are inserted into the interior of the reinforcing frame 21, completing the assembly connection of the PVC profile bodies 1. The assembly frames 24 at adjacent ends of the reinforcing frame 21 are inserted into the interior of the reinforcing frame 21, and the assembly frames 24 have horizontally opened elastic pressure grooves 242 on both the upper and lower sides of their exterior, which are pressed and inserted into the first elastic pressure frame 23. Multiple PVC profile bodies 1 with reinforcing members 2 are assembled at adjacent ends, and their assembly frames 24 are inserted into the interior of the reinforcing frame 21. A first elastic pressure frame 23 externally provided on the assembly frame 24 presses against the elastic pressure groove 242 of the assembly frame 24, completing the assembly and splicing of the PVC profile bodies 1 with reinforcing members 2. Second elastic pressure frames 241 are horizontally fixed on both the left and right sides of the assembly frame 24, and these second elastic pressure frames 241 are inserted into the interior of the reinforcing frame 21 during assembly. The insertion of multiple PVC profile bodies 1 with reinforcing members 2 at adjacent ends into the reinforcing frame 21 forces the second elastic pressure frames 241 to deform. The deformation force of the second elastic pressure frames 241 presses against the interior of the reinforcing frame 21, ensuring the effective clamping of the assembled PVC profile bodies 1.
[0030] Reference Figure 4Multiple support beams 28 are vertically arranged between the two elastic inserts 25 along their length, and the upper and lower ends of the multiple support beams 28 are fixed between the two elastic inserts 25. The multiple support beams 28 vertically fixed between the two elastic inserts 25 improve the support stability of the two elastic inserts 25.
[0031] The implementation principle of a high-strength and high-toughness PVC profile according to an embodiment of this application is as follows: In order to increase the overall strength of the PVC profile body 1 during use, the reinforcing frame 21 in the reinforcing member 2 is assembled and inserted into the inner cavity 11 of the PVC profile body 1. At the same time, the elastic strips 25 on both sides of the reinforcing frame 21 are respectively inserted into the outer cavities 12 on both sides of the PVC profile body 1. The multiple elastic horizontal strips 26 on the elastic strips 25 press against the inner cavity 11 of the PVC profile body 1. The inner cavity 11 and the outer cavity 12 of the PVC profile body 1 form a closed buffer cavity, which can buffer external impact through the air layer, and maintain structural stability while reducing the amount of material used. The reinforcing frame 21 and elastic insert 25 inserted into the cavity 12 utilize multiple reinforcing brackets 22 fixed horizontally and vertically in the reinforcing frame 21 to further enhance the support stability of the reinforcing frame 21. At the same time, multiple elastic horizontal bars 26 are arranged vertically and alternately along the length direction on the elastic insert 25. The two ends of the multiple elastic horizontal bars 26 press against the inner wall of the inner cavity 11 of the PVC profile body 1. The elastic horizontal bars 26 and the elastic insert 25 form a grid-like support structure to distribute the lateral force. Circular reinforcing blocks are provided at the intersection of the elastic horizontal bars 26 and the elastic insert 25 to avoid stress concentration at the joint of the ribs, further increasing the overall support and reinforcement of the PVC profile body 1. The setting of the reinforcing member 2 increases the strength and toughness of the PVC profile body 1.
[0032] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A high-strength, high-toughness PVC profile, characterized in that, The assembly includes a PVC profile body (1) and a reinforcing member (2). The PVC profile body (1) has an inner cavity (11) in its center and outer cavities (12) on both sides. The reinforcing member (2) includes a reinforcing frame (21), an elastic insert (25), and an elastic crossbar (26). The reinforcing frame (21) is inserted into the inner cavity (11) of the PVC profile body (1), and two elastic crossbars are fixed along the length direction on both sides of one end of the reinforcing frame (21). The elastic insert (25) has multiple elastic horizontal bars (26) arranged vertically and alternately along its length. The intersection of the elastic horizontal bars (26) and the elastic insert (25) is provided with an arc-shaped reinforcing block (27). The elastic insert (25) is inserted into the outer cavity (12) of the PVC profile body (1). The reinforcing frame (21) has a vertically fixed I-shaped reinforcing bracket (22), and multiple reinforcing brackets (22) are fixed along its length.
2. The high-strength, high-toughness PVC profile according to claim 1, characterized in that: The inner cavity (11) of the PVC profile body (1) is horizontally fixed with inner clamping cavities (111) on both sides along the length direction. The vertical end faces of the reinforcing frame (21) are horizontally provided with clamping grooves (211), and the clamping grooves (211) are engaged with the inner clamping cavities (111).
3. The high-strength, high-toughness PVC profile according to claim 1, characterized in that: The outer top surface of the PVC profile body (1) is integrally formed with a first assembly part (13) along the length direction, and the outer vertical end face of the PVC profile body (1) is integrally formed with a second assembly part (15) along the length direction.
4. The high-strength, high-toughness PVC profile according to claim 3, characterized in that: The first assembly part (13) has multiple reinforcing frames (14) arranged horizontally along the length direction inside, and the multiple reinforcing frames (14) are integrally formed with the first assembly part (13).
5. A high-strength, high-toughness PVC profile according to claim 1, characterized in that: The reinforcing insert (21) has a first elastic pressure frame (23) fixed horizontally on both the upper and lower sides of one end, and an assembly insert (24) fixed horizontally on the other end.
6. A high-strength, high-toughness PVC profile according to claim 5, characterized in that: The assembly frame (24) at the adjacent end of the reinforcing frame (21) is inserted into the interior of the reinforcing frame (21), and the upper and lower sides of the assembly frame (24) are horizontally provided with elastic pressure grooves (242), and the elastic pressure grooves (242) are pressed and inserted with the first elastic pressure frame (23).
7. A high-strength, high-toughness PVC profile according to claim 6, characterized in that: The outer left and right sides of the assembly frame (24) are both horizontally fixed with second elastic pressure frames (241), and the second elastic pressure frames (241) are inserted into the interior of the reinforcing frame (21) during assembly.
8. A high-strength, high-toughness PVC profile according to claim 1, characterized in that: Multiple support beams (28) are vertically arranged between the two elastic inserts (25) along the length direction, and the upper and lower ends of the multiple support beams (28) are fixed between the two elastic inserts (25).