Lightweight high-strength steel-wood door
Patent Information
- Application Number
- CN202521928030.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-08
- Publication Date
- 2026-09-25
- Estimated Expiration
- 2035-09-08
AI Technical Summary
[0003]而在常见的钢木门中,为了满足门体的强度,通常会通过增加用于提高门体强度的钢板厚度,但是这样的话会大幅度的增加钢木门的整体重量,这样的话不仅会提高对钢木门的搬运难度还会提高对合页和门框的承重要求
[0012]与现有技术相比,本实用新型的优点是,通过设置,使门板与加强架安装时未使用粘合剂黏合,这样的话能够降低钢木门在使用时甲醛的释放,从而提高了钢木门的环保性,又因在两块门板之间设置有加强架,能够提高两块门板的抗冲击性,进而提高了钢木门的强度,而将加强架设置呈X状,这样的话能够降低钢木门的重量,如此能够在保证钢木门在具有较高抗冲击和抗变形性能的前提下,能够最大限度地减轻整体重量,同时通过在连接部之间设置连接板,能够保证加强架在门板之间的稳定性。
Smart Images

Figure CN224800169U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a steel-wood door, and more particularly to a lightweight, high-strength steel-wood door. Background Technology
[0002] Steel-wood doors are interior doors made by combining steel and wood. They not only have the sturdiness of steel doors but also the warmth of wooden doors, making them a common and cost-effective type of door in modern homes.
[0003] In common steel-wood doors, to ensure the door's strength, the thickness of the steel plate used to improve the door's strength is usually increased. However, this significantly increases the overall weight of the steel-wood door, which not only increases the difficulty of moving the door but also increases the load-bearing requirements for the hinges and door frame. Utility Model Content
[0004] The technical problem to be solved by this utility model is to provide a lightweight, high-strength steel-wood door that can minimize the overall weight while ensuring that the door body has high impact resistance and deformation resistance.
[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a lightweight and high-strength steel-wood door, including a steel-wood door body and a decorative panel installed on the steel-wood door body. The steel-wood door body is also provided with a door lock assembly. The steel-wood door body includes a sleeve; a reinforcing frame, which is installed in the sleeve and is arranged in an X shape. The reinforcing frame has a connecting part at the center and at the four ends. Each connecting part has a first through hole. A connecting plate is provided between the connecting parts; and two door panels are provided, which are respectively installed at the front end and rear end of the reinforcing frame. Each door panel has a second through hole communicating with the first through hole. A first bolt and a nut are respectively provided in the second through hole of the two door panels. The first bolt passes through the first through hole and is screwed to the nut.
[0006] A further preferred embodiment of this utility model is that the reinforcing frame, connecting part, and connecting plate are all integrally formed.
[0007] A further preferred embodiment of this utility model is as follows: a plurality of first mounting holes are evenly provided on the side walls around the door panel, and an internal threaded sleeve is provided in each of the first mounting holes. A side plate is provided between the two door panels, and a plurality of third through holes aligned with the first mounting holes are provided on the side plate. A second bolt is provided in each of the third through holes and screwed into the internal threaded sleeve.
[0008] A further preferred embodiment of this utility model is that the reinforcing frame, connecting part, and connecting plate are all made of lightweight, high-strength materials.
[0009] A further preferred embodiment of this utility model is as follows: a mounting groove communicating with the interior of the mounting frame is provided on the side wall of both the connecting plate and the reinforcing frame, and a heat insulation board is inserted into the mounting groove. A sound insulation board is provided on the side wall at both ends of the heat insulation board, and the sound insulation board is located in the reinforcing frame.
[0010] A further preferred embodiment of this utility model is as follows: the sleeve is made of cold-rolled steel plate, the top and bottom of the sleeve are both open, and a baffle made of cold-rolled steel plate is provided at the top and bottom of the sleeve respectively.
[0011] A further preferred embodiment of this utility model is that the insulation board is made of bridge hole mechanical board, and the sound insulation board is made of polyurethane foam block that has been treated with flame retardant.
[0012] Compared with the prior art, the advantages of this utility model are that, by setting it up so that the door panel and the reinforcing frame are not glued together during installation, the release of formaldehyde during the use of the steel-wood door can be reduced, thereby improving the environmental friendliness of the steel-wood door. Furthermore, the reinforcing frame set between the two door panels can improve the impact resistance of the two door panels, thereby improving the strength of the steel-wood door. The X-shaped setting of the reinforcing frame can reduce the weight of the steel-wood door. Thus, while ensuring that the steel-wood door has high impact resistance and deformation resistance, the overall weight can be reduced to the maximum extent. At the same time, by setting a connecting plate between the connecting parts, the stability of the reinforcing frame between the door panels can be ensured. Attached Figure Description
[0013] The present invention will be further described in detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will understand that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be construed as limiting the scope of the present invention. Furthermore, unless specifically indicated, the drawings are only schematic representations of the composition or structure of the described objects and may contain exaggerated depictions, and the drawings are not necessarily drawn to scale.
[0014] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the main body of the steel-wood door in this utility model; Figure 3 This is an exploded view of the main body of the steel-wood door in this utility model; Figure 4 This is a three-dimensional structural diagram of the door panel and side panel of this utility model when they are installed together with the reinforcing frame; Figure 5 This is an exploded view of the middle door panel, side panels, and reinforcing frame of this utility model; Figure 6 This is a three-dimensional view of the reinforcing frame in this utility model when it is equipped with a heat insulation board and a sound insulation board; Figure 7 This is an exploded view of the reinforcing frame, insulation board, and sound insulation board in this utility model; Figure 8 This is a three-dimensional structural diagram of the reinforcing frame in this utility model.
[0015] In the diagram: 1. Steel-wood door body; 2. Decorative panel; 3. Door lock assembly; 4. Sleeve; 41. Baffle; 5. Door panel; 51. Second through hole; 52. Mounting hole; 6. Side panel; 61. Third through hole; 7. Second bolt; 8. First bolt; 9. Nut; 10. Reinforcing frame; 11. Connecting plate; 12. Connecting part; 121. First through hole; 13. Insulation board; 14. Sound insulation board; 15. Mounting groove. Detailed Implementation
[0016] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are merely descriptive and exemplary and should not be construed as limiting the scope of protection of the present invention.
[0017] It should be noted that similar labels in the following figures indicate similar items; therefore, once an item is defined in one figure, it may not be further defined and explained in subsequent figures.
[0018] This embodiment mainly describes the structure of a lightweight, high-strength steel-wood door, as follows: like Figures 1-8 As shown, a lightweight and high-strength steel-wood door includes a steel-wood door body 1 and a decorative panel 2 installed on the steel-wood door body 1. A door lock assembly 3 is also provided on the steel-wood door body 1. The steel-wood door body 1 includes a sleeve 4 and a reinforcing frame 10 installed in the sleeve 4 in an X-shape. A connecting part 12 with a first through hole 121 is provided at the center and the four ends of the reinforcing frame 10. A connecting plate 11 is provided between the connecting parts 12. A door panel 5 is provided at the front and rear ends of the reinforcing frame 10. A second through hole 51 communicating with the first through hole 121 is provided on the door panel 5. A first bolt 8 and a nut 9 are respectively provided in the second through hole 51 on the two door panels 5. When installing the door panel 5 onto the reinforcing frame 10, first install the two door panels 5 at the front and rear ends of the reinforcing frame 10 respectively, aligning the second through hole 51 on the door panel 5 with the first through hole 121 on the connecting part 12. Then, insert the first bolt 8 through the second through hole 51 on one door panel 5, and pass the first through hole 121 on the connecting part 12 into the second through hole 51 on the other door panel 5. Next, install the nut 9 in the second through hole 51 on the other door panel 5, and screw the nut 9 onto the first bolt 8 until the nut 9 is tightened. This completes the installation of the two door panels 5 onto the reinforcing frame 10. Because no adhesive was used to bond the door panel 5 and the reinforcing frame 10 during installation, the release of formaldehyde during the use of the steel-wood door can be reduced, thereby improving the environmental friendliness of the steel-wood door. Furthermore, the reinforcing frame 10 between the two door panels 5 can improve the impact resistance of the two door panels 5, thereby increasing the strength of the steel-wood door. The reinforcing frame 10 is set in an X shape, which can reduce the weight of the steel-wood door. Thus, while ensuring that the steel-wood door has high impact resistance and deformation resistance, the overall weight can be reduced to the maximum extent. At the same time, by setting the connecting plate 11 between the connecting parts 12, the stability of the reinforcing frame 10 between the door panels 5 can be ensured.
[0019] Furthermore, in order to ensure the stability of the reinforcing frame 10, the connecting part 12, and the connecting plate 11 when they are together, the reinforcing frame 10, the connecting part 12, and the connecting plate 11 are all integrally formed. At the same time, in order to ensure that the reinforcing frame 10, the connecting part 12, and the connecting plate 11 have strong strength but not excessive weight, the reinforcing frame 10, the connecting part 12, and the connecting plate 11 are all made of lightweight, high-strength materials (such as titanium-magnesium alloy).
[0020] Furthermore, in order to improve the stability of the two door panels 5 when they are in the sleeve 4, a plurality of first mounting holes 52 are evenly opened on the side walls around the door panels 5, and an internal threaded sleeve is provided in each of the first mounting holes 52. Then, a side plate 6 is provided on each of the two door panels 5, and a plurality of third through holes 61 aligned with the first mounting holes 52 are opened on the side plate 6. Finally, a second bolt 7 is provided in each of the third through holes 61 and screwed to the internal threaded sleeve.
[0021] Furthermore, to ensure the steel-wood door has good heat insulation and sound insulation effects, an installation groove 15 communicating with the inside of the mounting frame is provided on the side wall of the connecting plate 11 and the reinforcing frame 10. At the same time, an insulation board 13 is inserted into the installation groove 15, and a sound insulation board 14 is provided on the side wall of the front and rear ends of the insulation board 13. The sound insulation board 14 is located in the reinforcing frame 10. The insulation board 13 is made of bridge hole mechanical board, which ensures the stability of the insulation board 13 in the installation groove 15 and also enables the insulation board 13 to have a sound insulation effect, thereby further improving the sound insulation effect of the steel-wood door. The sound insulation board 14 is made of polyurethane foam block that has been treated with flame retardant, which can further improve the heat insulation and sound insulation of the steel-wood door.
[0022] Furthermore, in order to further improve the strength of the steel-wood door, the sleeve 4 is made of cold-rolled steel plate. At the same time, in order to facilitate the installation of the sleeve 4, the top and bottom of the sleeve 4 are open. Additionally, a baffle 41 made of cold-rolled steel plate is set at the top and bottom of the sleeve 4 respectively. When the sleeve 4 is installed, the two baffles 41 are welded to the top and bottom of the sleeve 4 respectively.
[0023] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0024] The present invention provides a detailed description of a lightweight, high-strength steel-wood door. Specific examples have been used to illustrate the principles and implementation methods of the present invention. The descriptions of these embodiments are merely for the purpose of helping to understand the present invention and its core concepts. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of the present invention.
Claims
1. A lightweight, high-strength steel-wood door, comprising a steel-wood door body and a decorative panel installed on the steel-wood door body, wherein the steel-wood door body is further provided with a door lock assembly, characterized in that: The steel-wood door body includes Sleeve; A reinforcing frame is installed in the sleeve. The reinforcing frame is arranged in an X shape. The reinforcing frame has a connecting part at the center and at the four ends. Each connecting part has a first through hole. A connecting plate is provided between the connecting parts. The door panel consists of two pieces, which are respectively installed at the front and rear ends of the reinforcing frame. Each door panel has a second through hole that communicates with the first through hole. A first bolt and a nut are respectively installed in the second through hole of the two door panels. The first bolt passes through the first through hole and is screwed to the nut.
2. The lightweight, high-strength steel-wood door according to claim 1, characterized in that: The reinforcing frame, connecting parts, and connecting plates are all integrally molded.
3. The lightweight, high-strength steel-wood door according to claim 1, characterized in that: Multiple first mounting holes are evenly provided on the side walls around the door panel. Each first mounting hole is provided with an internal threaded sleeve. A side plate is provided between the two door panels. Each side plate is provided with multiple third through holes aligned with the first mounting holes. Each third through hole is provided with a second bolt that is screwed into the internal threaded sleeve.
4. A lightweight, high-strength steel-wood door according to claim 1, characterized in that: The reinforcing frame, connecting parts, and connecting plates are all made of lightweight, high-strength materials.
5. A lightweight, high-strength steel-wood door according to claim 1, characterized in that: Both the connecting plate and the reinforcing frame have an installation groove on their side walls that communicates with the inside of the mounting frame. An insulation board is inserted into each of the installation grooves. A sound insulation board is installed on the side walls at both ends of the insulation board. The sound insulation boards are all located in the reinforcing frame.
6. A lightweight, high-strength steel-wood door according to claim 1, characterized in that: The sleeve is made of cold-rolled steel plate, and the top and bottom of the sleeve are open. A baffle made of cold-rolled steel plate is provided at the top and bottom of the sleeve respectively.
7. A lightweight, high-strength steel-wood door according to claim 5, characterized in that: The insulation board is made of bridge-hole mechanical board, and the sound insulation board is made of polyurethane foam blocks that have been treated with flame retardant.