Steel frame for doors and windows

Abstract

The utility model discloses a steel frame for doors and windows. The steel frame comprises a main frame, a first partition structure and a second partition structure. The main frame is divided into a first area and at least one second area, and the first area is arranged on the periphery of the second area. The first partition structure is located in the first area and comprises a plurality of first partition pipes connected with the main frame; the multiple first partition pipes are arranged according to a first preset mode. The second partition structure is located in the second area and comprises a plurality of second partition pipes connected with the first partition pipes; and the plurality of second partition pipes are arranged according to a second preset mode different from the first preset mode. The pipe diameter of the first partition pipes is larger than that of the second partition pipes, and the distribution density of the multiple first partition pipes located in the first area is smaller than that of the multiple second partition pipes located in the second area. The steel frame in the design is light in overall weight and convenient to transport and install.

Description

Technical Field

[0001] The present application relates to the field of frame technology, and in particular to a steel frame for doors and windows. Background Art

[0002] Frames are widely used in door and window structures. These are typically made of solid flat iron, bent to create a pattern. This results in a heavy frame, making it difficult to transport and install. Therefore, improving the existing frame structure to enhance its ease of transportation and installation has become a pressing technical challenge. Utility Model Content

[0003] The embodiment of the present application provides a steel frame for doors and windows, which can solve the problem in the related art that the frame members are inconvenient to transport and install due to their large overall weight.

[0004] An embodiment of the present application provides a steel frame for doors and windows; the steel frame includes a main frame, a first partition structure and a second partition structure, the main frame is divided into a first area and at least one second area, the first area is arranged on the periphery of the second area, the first partition structure is located in the first area, the first partition structure includes a plurality of first partition tubes connected to the main frame, the plurality of first partition tubes are arranged according to a first preset method, the second partition structure is located in the second area, the second partition structure includes a plurality of second partition tubes connected to the first partition tubes, the plurality of second partition tubes are arranged according to a second preset method different from the first preset method, the diameter of the first partition tube is larger than the diameter of the second partition tube, and the distribution density of the plurality of first partition tubes located in the first area is smaller than the distribution density of the plurality of second partition tubes located in the second area.

[0005] In the steel frame for doors and windows according to the embodiment of the present application, the first partition structure within the first region is designed as a plurality of first partition tubes, and the second partition structure within the second region is designed as a plurality of second partition tubes. This use of hollow tubes instead of solid flat iron effectively reduces the overall weight of the steel frame, thereby improving the ease of transportation and installation, and also saves material. The plurality of first partition tubes within the first region are arranged according to a first preset pattern, while the plurality of second partition tubes within the second region are arranged according to a second preset orientation different from the first preset pattern. This enriches the texture structure design of the steel frame and provides a good decorative effect. By designing the first partition tubes with larger diameters closer to the main frame and connecting them to the main frame, the plurality of first partition tubes not only serve as beautifying and decorative outer patterns but also reinforce the main frame structure, thereby improving the overall structural strength of the steel frame. This effectively reduces the possibility of deformation or breakage of the main frame during installation of the steel frame with the external object to be installed. By designing the second partition tubes with smaller diameters to be located further away from the main frame and connected to the first partition tubes, these multiple second partition tubes not only serve as beautifying and decorative inner lines but also support the end of the first partition tubes away from the main frame, thereby improving the connection stability of the first partition tubes. By designing the distribution density of the second partition tubes with smaller diameters in the second area to be greater than the distribution density of the first partition tubes with larger diameters in the first area, the overall structural strength of the second partition structure in the second area can be improved, so that the structural strength of the second partition structure in the second area and the structural strength of the first partition structure in the first area are both stronger, thereby evenly distributing the structural strength of the overall steel frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0007] Figure 1 This is a structural diagram of a steel frame in one embodiment of the present application;

[0008] Figure 2 for Figure 1 Schematic diagram of the enlarged structure at A in the middle;

[0009] Figure 3 This is a partial structural diagram of the main frame in one embodiment of the present application;

[0010] Figure 4 This is a schematic cross-sectional structure diagram of the main frame in one embodiment of the present application.

[0011] Figure numerals: 1. Steel frame; 10. Main frame; 10a. First area; 10b. Second area; 11. Frame body; 11a. Cavity; 11b. Fixed position; 111. Side panel; 12. Reinforcing rib; 121. First reinforcing rib; 122. Second reinforcing rib; 13. Reinforcement body; 20. First partition structure; 21. First partition tube; 30. Second partition structure; 31. Second partition tube; 32. Reinforcing rib; 40. Sub-frame. DETAILED DESCRIPTION

[0012] In order to make the purpose, technical solutions and advantages of this application more clearly understood, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0013] Please refer to Figure 1 As shown, the present application proposes a steel frame 1 for doors and windows, which has a light overall weight and is easy to transport and install.

[0014] The steel frame 1 includes a main frame 10, a first partition structure 20, and a second partition structure 30. The main frame 10 is divided into a first area 10a and at least one second area 10b, with the first area 10a being located outside the second area 10b. The first partition structure 20 is located in the first area 10a and includes a plurality of first partition tubes 21 connected to the main frame 10; the plurality of first partition tubes 21 are arranged according to a first preset method. The second partition structure 30 is located in the second area 10b and includes a plurality of second partition tubes 31 connected to the first partition tubes 21; the plurality of second partition tubes 31 are arranged according to a second preset method that is different from the first preset method. The diameter of the first partition tubes 21 is larger than the diameter of the second partition tubes 31, and the distribution density of the plurality of first partition tubes 21 located in the first area 10a is smaller than the distribution density of the plurality of second partition tubes 31 located in the second area 10b.

[0015] The following combination Figures 1-4 The specific structure of the steel frame 1 is introduced in detail.

[0016] like Figure 1-Figure 2 As shown, the steel frame 1 includes a main frame 10 , a first partition structure 20 and a second partition structure 30 .

[0017] The main frame 10 serves as the main support of the steel frame 1 and is used to connect with external fasteners (introduced below) to fix the steel frame 1 to the external body to be installed; wherein, the external body to be installed can be but is not limited to a wall, a plate, a frame, etc., which are physical structures that can be used to install the steel frame 1.

[0018] The specific shape of the main frame 10 is not limited here, and designers can make reasonable designs according to actual needs; for example, the shape of the main frame 10 can be, but is not limited to, circular, square, rectangular, regular hexagonal, regular octagonal, etc.

[0019] The main frame 10 is divided into a first area 10a and a second area 10b, with the first area 10a being located outside the second area 10b. The number of second areas 10b can be one or more (two or more); for example, when there is only one second area 10b, the second area 10b can be located in the center of the first area 10a. For another example, when there are multiple second areas 10b, the multiple second areas 10b can be randomly distributed within the first area 10a.

[0020] like Figure 1-Figure 2 As shown, the first partition structure 20 serves as a partition member of the steel frame 1 and is used to form the outer texture of the steel frame 1 to achieve beautification and decoration.

[0021] The first partition structure 20 is located in the first area 10 a and includes a plurality of first partition tubes 21 .

[0022] The first partition tube 21 serves as a texture component of the first partition structure 20; the first partition tube 21 can be a straight tube, a curved tube, or a combination of a straight tube and a curved tube; there is no limitation on the specific shape of the cross section of the first partition tube 21, and designers can make reasonable designs according to actual needs; for example, the cross section of the first partition tube 21 can be, but is not limited to, circular or rectangular.

[0023] The plurality of first partition tubes 21 are arranged according to a first preset manner to form a desired peripheral pattern.

[0024] It should be noted that, with respect to the first partition structure 20, the shapes of the multiple first partition tubes 21 may be the same or different; the multiple first partition tubes 21 may be a split structure or an integrated structure; for example, when the multiple first partition tubes 21 are a split structure, the multiple first partition tubes 21 may be, but are not limited to, fixedly connected by screwing, clamping, plugging or welding; for another example, when the multiple first partition tubes 21 are an integrated structure, the multiple first partition tubes 21 may be, but are not limited to, fixedly connected by injection molding or 3D printing.

[0025] The first partition tube 21 is connected to the main frame 10; the specific connection method between the first partition tube 21 and the main frame 10 is not limited here, and designers can make reasonable designs according to actual needs; for example, the first partition tube 21 can be but is not limited to being fixedly connected to the main frame 10 by screwing, clamping, plugging or welding.

[0026] like Figure 1-Figure 2 As shown, the second partition structure 30 serves as another partition member of the steel frame 1 and is used to form inner lines of the steel frame 1 to achieve beautification and decoration.

[0027] The second partition structure 30 is located in the second area 10 b and includes a plurality of second partition tubes 31 .

[0028] The second partition tube 31 serves as a texture component of the second partition structure 30; the second partition tube 31 can be a straight tube, a curved tube, or a combination of a straight tube and a curved tube; there is no limitation on the specific shape of the cross section of the second partition tube 31, and designers can make reasonable designs according to actual needs; for example, the cross section of the second partition tube 31 can be, but is not limited to, circular or rectangular.

[0029] The plurality of second partition tubes 31 are arranged in a second preset manner different from the first preset manner to form the required inner peripheral pattern.

[0030] It should be noted that, with respect to the second partition structure 30, the shapes of the multiple second partition tubes 31 may be the same or different; the multiple second partition tubes 31 may be a split structure or an integrated structure; for example, when the multiple second partition tubes 31 are a split structure, the multiple second partition tubes 31 may be fixedly connected by, but not limited to, screwing, clamping, plugging or welding; for another example, when the multiple second partition tubes 31 are an integrated structure, the multiple second partition tubes 31 may be fixedly connected by, but not limited to, injection molding or 3D printing.

[0031] The second partition tube 31 is connected to the first partition tube 21; the specific connection method between the second partition tube 31 and the first partition tube 21 is not limited here, and designers can make reasonable designs according to actual needs; for example, the second partition tube 31 can be but is not limited to being fixedly connected to the first partition tube 21 by screwing, clamping, plugging or welding.

[0032] The diameter of the first partition tube 21 is larger than that of the second partition tube 31 , and the distribution density of the first partition tubes 21 in the first area 10 a is smaller than the distribution density of the second partition tubes 31 in the second area 10 b .

[0033] Based on the steel frame 1 in the embodiment of the present application, by designing the first partition structure 20 located in the first area 10a as a plurality of first partition tubes 21, and designing the second partition structure 30 located in the second area 10b as a plurality of second partition tubes 31, the use of hollow tubes to replace solid flat iron can effectively reduce the overall weight of the steel frame 1 on the one hand, thereby improving the convenience of transportation and installation of the steel frame 1, and on the other hand, it can also achieve the purpose of saving materials. The plurality of first partition tubes 21 located in the first area 10a are arranged according to a first preset method, and the plurality of second partition tubes 31 located in the second area 10b are arranged according to a second preset direction different from the first preset method. This makes the texture design of the steel frame 1 more diverse and has a good decorative effect.

[0034] It is worth mentioning that the diameter of the first partition tube 21 is larger than the diameter of the second partition tube 31, and the structural strength of the first partition tube 21 is greater than the structural strength of the second partition tube 31 (that is, under the same external force, the second partition tube 31 is more likely to bend or break than the first partition tube 21); by designing the first partition tube 21 with a larger diameter to be closer to the side of the main frame 10 and connected to the main frame 10, such multiple first partition tubes 21 can not only serve as outer patterns to beautify and decorate, but also play a role in reinforcing the main frame 10 in structure, so as to improve the overall structural strength of the steel frame 1, thereby effectively reducing the possibility of deformation or breakage of the main frame 10 during the installation of the steel frame 1 and the external body to be installed; by setting the second partition tube 31 with a smaller diameter It is designed on the side farther away from the main frame 10 and connected to the first partition tube 21. In addition to being able to serve as inner circumferential patterns for beautification and decoration, the multiple second partition tubes 31 can also support the end of the first partition tube 21 away from the main frame 10 to improve the connection stability of the first partition tube 21; by designing the distribution density of the second partition tubes 31 with smaller diameters in the second area 10b to be greater than the distribution density of the first partition tubes 21 with larger diameters in the first area 10a, the overall structural strength of the second partition structure 30 located in the second area 10b can be improved, so that the structural strength of the second partition structure 30 located in the second area 10b and the structural strength of the first partition structure 20 located in the first area 10a are both stronger, thereby making the overall structural strength of the steel frame 1 evenly distributed.

[0035] like Figure 1-Figure 2 As shown, the diameter design of the plurality of first partition tubes 21 located in the first area 10a and the diameter design of the plurality of second partition tubes 31 located in the second area 10b can be, but is not limited to, the following embodiments.

[0036] In the first embodiment, the multiple first partition tubes 21 located in the first region 10a have the same diameter; the multiple second partition tubes 31 located in the second region 10b have the same diameter. In this manner, the multiple first partition tubes 21 of the same diameter can be arranged according to the first predetermined pattern to form an outer pattern, while the multiple second partition tubes 31 of the same diameter can be arranged according to the second predetermined pattern to form an inner pattern. The combination of the outer and inner patterns provides a richer pattern design for the steel frame 1.

[0037] In the second embodiment, the multiple first partition tubes 21 located in the first area 10a have different diameters; the multiple second partition tubes 31 located in the second area 10b have the same diameter. In this way, the multiple first partition tubes 21 with different diameters can be arranged according to the first preset method to form an outer pattern, and the multiple second partition tubes 31 with the same diameter can be arranged according to the second preset method to form an inner pattern. The outer pattern and the inner pattern are combined to make the pattern design of the steel frame 1 more diverse. It is worth mentioning that the multiple first partition tubes 21 located in the first area 10a have different diameters, which makes the outer pattern formed by connecting the multiple first partition tubes 21 with different diameters appear more three-dimensional, which can effectively optimize the aesthetics of the steel frame 1.

[0038] In a third embodiment, the multiple first partition tubes 21 located in the first region 10a have the same diameter; the multiple second partition tubes 31 located in the second region 10b have different diameters. In this way, the multiple first partition tubes 21 of the same diameter can be arranged according to the first preset method to form an outer pattern, while the multiple second partition tubes 31 of different diameters can be arranged according to the second preset method to form an inner pattern. The outer and inner patterns complement each other, enriching the pattern design of the steel frame 1. It is worth noting that the multiple second partition tubes 31 located in the second region 10b have different diameters, making the inner pattern formed by connecting the multiple second partition tubes 31 of different diameters appear more three-dimensional, effectively improving the aesthetics of the steel frame 1.

[0039] In a fourth embodiment, the multiple first partition tubes 21 located in the first region 10a have different diameters; the multiple second partition tubes 31 located in the second region 10b have different diameters. In this way, the multiple first partition tubes 21 with different diameters can be arranged according to the first predetermined pattern to form an outer pattern, and the multiple second partition tubes 31 with different diameters can be arranged according to the second predetermined pattern to form an inner pattern. The outer and inner patterns complement each other, enriching the pattern design of the steel frame 1. It is worth noting that the different diameters of the multiple first partition tubes 21 located in the first region 10a make the outer pattern formed by connecting the multiple first partition tubes 21 with different diameters appear more three-dimensional; the different diameters of the multiple second partition tubes 31 located in the second region 10b make the inner pattern formed by connecting the multiple second partition tubes 31 with different diameters also appear more three-dimensional. This further effectively improves the aesthetics of the steel frame 1.

[0040] like Figure 1-Figure 2 As shown, the material design of the first partition tube 21 and the material design of the second partition tube 31 can be but is not limited to one or more of the following embodiments.

[0041] In the first embodiment, the first partition tube 21 is made of stainless steel. By designing the first partition tube 21 to be made of stainless steel, the raw material is widely available and easy to obtain, and the purpose of energy conservation and carbon reduction can be achieved.

[0042] In the second embodiment, the second partition tube 31 is made of stainless steel. By designing the second partition tube 31 to be made of stainless steel, the raw material is widely available and easy to obtain, and the purpose of energy conservation and carbon reduction can be achieved.

[0043] Of course, in other embodiments, the material of the first partition tube 21 and / or the second partition tube 31 may also be, but is not limited to, galvanized steel.

[0044] like Figure 1-Figure 2 As shown, the steel frame 1 also includes a sub-frame 40 located in the hollow area of the main frame 10; the sub-frame 40 divides the hollow area of the main frame 10 into the above-mentioned first area 10a and the above-mentioned second area 10b; the second partition tube 31 is connected to the first partition tube 21 via the sub-frame 40.

[0045] Among them, the sub-frame 40 and the main frame 10 are overlapped inside and outside to divide the hollow area of the main frame 10 into a first area 10a and a second area 10b; among them, the hollow area between the inner side of the sub-frame 40 is used as the second area 10b, and the hollow area between the outer side of the sub-frame 40 and the inner side of the main frame 10 is used as the first area 10a.

[0046] The sub-frame 40 serves as a sub-bracket of the steel frame 1 and is used to connect the second partition tube 31 and the first partition tube 21 (that is, the sub-frame 40 serves as an intermediate connector between the second partition tube 31 and the first partition tube 21). The specific shape of the sub-frame 40 is not limited here, and designers can make reasonable designs based on actual needs; for example, the shape of the sub-frame 40 can be, but is not limited to, circular, square, rectangular, regular hexagonal or regular octagonal, etc.; it should be noted that the shape of the sub-frame 40 can be the same as or different from that of the main frame 10. The specific connection method between the sub-frame 40 and the second partition tube 31 / first partition tube 21 is not limited here, and designers can make reasonable designs based on actual needs; for example, the sub-frame 40 can be, but is not limited to, fixedly connected to the second partition tube 31 / first partition tube 21 by screwing, clamping, plugging or welding.

[0047] By designing the sub-frame 40, the sub-frame 40, on the one hand, serves as an intermediate connecting piece between the second partition tube 31 and the first partition tube 21, facilitating the connection between the second partition tube 31 and the first partition tube 21; on the other hand, the sub-frame 40 serves as a reinforcement body to provide support for the second partition tube 31 and the first partition tube 21, so as to further enhance the overall structural strength of the steel frame 1.

[0048] like Figure 1-Figure 2 As shown, the second partition structure 30 further includes a reinforcing rib 32, which is connected between two adjacent second partition tubes 31. A single reinforcing rib 32 or multiple reinforcing ribs 32 can be provided between two adjacent second partition tubes 31. The reinforcing rib 32 can be fixedly connected to the second partition tubes 31 by, but is not limited to, welding. In this design, the reinforcing rib 32 connects the two adjacent second partition tubes 31 to form a single unit, thereby further enhancing the structural strength of the second partition structure 30 within the second region 10b, thereby making the overall structural strength distribution of the steel frame 1 more uniform.

[0049] like Figure 3-Figure 4 As shown, the main frame 10 includes a frame body 11 and reinforcing ribs 12; the frame body 11 is a tubular structure with a hollow interior, and the frame body 11 has a fixing position 11b for connecting to an external fastener, and the frame body 11 is divided into the above-mentioned first area 10a and the above-mentioned second area 10b; the first partition tube 21 is connected to the frame body 11; the reinforcing ribs 12 are located in the cavity 11a of the frame body 11, and the reinforcing ribs 12 are connected to the inner wall of the frame body 11 corresponding to the fixing position 11b.

[0050] The frame body 11 serves as the frame of the main frame 10 . The frame body 11 is a tubular structure with a hollow interior. For example, the cross section of the frame body 11 may be, but is not limited to, circular, triangular, square, rectangular, or the like.

[0051] The fixing position 11b is a portion on the frame body 11 that is used to cooperate with an external fastener to achieve a relative fixation between the steel frame 1 and the external object to be installed. It is understandable that the specific form of the external fastener that cooperates with the fixing position 11b is different. For example, when the fixing position 11b is a threaded hole on the frame body 11 and the external fastener includes a screw, the frame body 11 is connected to the external object to be installed by locking the screw, thereby fixing the steel frame 1 to the external object to be installed. For another example, when the fixing position 11b is a locking hole on the frame body 11 and the external fastener includes a bayonet, the frame body 11 is connected to the external object to be installed by engaging the bayonet, thereby fixing the steel frame 1 to the external object to be installed. For another example, when the fixing position 11b is a socket on the frame body 11 and the external fastener includes a latch, the frame body 11 is connected to the external object to be installed by engaging the latch, thereby fixing the steel frame 1 to the external object to be installed.

[0052] The reinforcing ribs 12, as the reinforcement ribs 32 of the main frame 10, are used to strengthen the structural strength of the frame body 11 near the fixing portion 11b, effectively reducing the possibility of deformation or breakage of the frame body 11 near the fixing portion 11b due to excessive force during the connection between the external fasteners and the fixing portion 11b. The reinforcing ribs 12 can be, but are not limited to, formed as an integral structure with the frame body 11 through injection molding or 3D printing.

[0053] like Figure 3 As shown, the fixing position 11b is a threaded hole provided on the frame body 11; the specific form of the reinforcing rib 12 may include but is not limited to one or more of the following embodiments.

[0054] In the first embodiment, the reinforcing rib 12 includes a first reinforcing rib 121 . The first reinforcing rib 121 is disposed along the edge of the threaded hole and connected to the inner wall of the frame body 11 .

[0055] The first reinforcing rib 121 may be, but is not limited to, an arc-shaped or annular structure. For example, when the first reinforcing rib 121 is an arc-shaped block structure, there are multiple first reinforcing ribs 121, and the multiple first reinforcing ribs 121 are spaced around the axis of the threaded hole and along the edge of the threaded hole. For another example, when the first reinforcing rib 121 is annular, the first reinforcing rib 121 is arranged along the edge of the threaded hole. The first reinforcing rib 121 may be, but is not limited to, an integral structure formed with the frame body 11 by injection molding or 3D printing.

[0056] By designing the first reinforcing rib 121, the first reinforcing rib 121 can enhance the structural strength of the frame body 11 near the threaded hole, which can effectively reduce the possibility of deformation or breakage of the frame body 11 near the threaded hole due to excessive force during the connection process between the external fastener and the threaded hole.

[0057] In the second embodiment, the reinforcing ribs 12 include second reinforcing ribs 122 . The second reinforcing ribs 122 are disposed on both sides of the threaded hole along the radial direction of the threaded hole and are connected to the frame body 11 .

[0058] The second reinforcing rib 122 may be, but is not limited to, a strip-shaped structure; the second reinforcing rib 122 may be, but is not limited to, an integral structure formed with the frame body 11 by injection molding or 3D printing. The number of the second reinforcing rib 122 may be one or more.

[0059] By designing the second reinforcing rib 122, the second reinforcing rib 122 can enhance the structural strength of the frame body 11 near the threaded hole, which can effectively reduce the possibility of deformation or breakage of the frame body 11 near the threaded hole due to excessive force during the connection process between the external fastener and the threaded hole.

[0060] like Figure 4 As shown, the frame body 11 includes a plurality of side panels 111 connected end to end; the plurality of side panels 111 enclose a cavity 11a. The main frame 10 also includes a plurality of reinforcing bodies 13; the plurality of reinforcing bodies 13 are located in the cavity 11a, and the plurality of reinforcing bodies 13 are arranged at the connection between two adjacent side panels 111. Among them, the reinforcing bodies 13 can be, but are not limited to, forming an integrated structure with the side panels 111 by injection molding or 3D printing. By designing the reinforcing bodies 13, the reinforcing bodies 13 play a reinforcing role at the connection position of the two adjacent side panels 111, which can enhance the structural strength of the frame body and thus enhance the structural strength of the main frame 10, thereby effectively reducing the possibility of deformation or breakage of the main frame 10 during the installation of the steel frame 1 and the external body to be installed.

[0061] like Figure 4As shown, at least one of the shapes and sizes of all the reinforcements 13 is different. By designing all the reinforcements 13 to have differences in shape and / or size, it is possible to effectively reduce the local resonance generated on the frame body 11 by external excitation energy (such as wind blowing or ground vibration), thereby effectively reducing the vibration sensitivity of the main frame 10 and reducing noise. The same or similar numbers in the drawings of this embodiment correspond to the same or similar parts; in the description of this application, it should be understood that if there are terms such as "upper", "lower", "left", "right" and the like indicating the orientation or position relationship based on the orientation or position relationship shown in the drawings, it is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances.

[0062] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A steel frame for doors and windows, characterized in that: include: a main frame, dividing a first area and at least one second area, wherein the first area is arranged outside the second area; a first partition structure located in the first area, the first partition structure comprising a plurality of first partition tubes connected to the main frame, the plurality of first partition tubes being arranged in a first preset manner; a second partition structure located in the second area, the second partition structure comprising a plurality of second partition tubes connected to the first partition tubes, the plurality of second partition tubes being arranged in a second preset manner different from the first preset manner; The diameter of the first partition tube is larger than that of the second partition tube, and the distribution density of the plurality of first partition tubes in the first area is smaller than the distribution density of the plurality of second partition tubes in the second area.

2. The steel frame according to claim 1, wherein: The plurality of first partition tubes located in the first area have different diameters; and / or The plurality of second partition tubes located in the second area have different diameters.

3. The steel frame according to claim 1, wherein: The first partition tube is made of stainless steel; and / or The second partition tube is made of stainless steel.

4. The steel frame according to claim 1, wherein: The steel frame further includes a sub-frame located in the hollow area of the main frame, wherein the sub-frame divides the hollow area of the main frame into the first area and the second area; the second partition tube is connected to the first partition tube via the sub-frame.

5. The steel frame according to claim 1, wherein: The second partition structure further includes a reinforcing rib, and the reinforcing rib is connected between two adjacent second partition tubes.

6. The steel frame according to any one of claims 1 to 5, characterized in that: The main framework includes: The frame body is a hollow tubular structure, and the frame body has a fixing position for connecting with an external fastener; the frame body is divided into the first area and the second area, and the first partition tube is connected to the frame body; The reinforcing rib is located in the cavity of the frame body and is connected to the inner wall of the frame body corresponding to the fixing position.

7. The steel frame according to claim 6, wherein: The fixing position is a threaded hole provided on the frame body; The reinforcement rib includes a first reinforcement rib, which is arranged along the edge of the threaded hole and connected to the inner wall of the frame body.

8. The steel frame according to claim 7, wherein: The reinforcing ribs further include second reinforcing ribs, which are arranged on both sides of the threaded hole along the radial direction of the threaded hole and connected to the inner wall of the frame body.

9. The steel frame according to claim 6, wherein: The frame body includes a plurality of side panels connected end to end, and the plurality of side panels enclose the cavity; The main frame further includes a plurality of reinforcing bodies, which are located in the cavity and are arranged at the connection between two adjacent side panels.

10. The steel frame according to claim 9, wherein: All of the reinforcement bodies are different in at least one of shape and size.

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