Metal door frame double-set assembling structure
Through the combined structure of the installation frame and the adjustment frame of the metal door frame, using mortise and tenon connection and bolt adjustment, the problem of secondary decoration of the metal door frame is solved, and efficient and beautiful installation and adaptation are achieved.
Patent Information
- Application Number
- CN202422612643.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-29
- Publication Date
- 2025-09-26
- Estimated Expiration
- 2034-10-29
AI Technical Summary
Existing metal door frames require secondary renovation and packaging after installation, which is time-consuming, labor-intensive, and increases costs.
It adopts a combined structure of installation frame and adjustment frame, and realizes one-time installation through mortise and tenon connection and bolt adjustment, which is suitable for walls of different thicknesses.
Reduce energy waste, improve installation efficiency, reduce costs, avoid welding residue affecting the appearance, and adapt to different wall thicknesses.
Smart Images

Figure CN223387164U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of metal door frames, and particularly relates to a double - sleeve assembly structure of a metal door frame. Background Art
[0002] After the existing metal door frames are installed, for the sake of aesthetics, users usually invite carpenters to carry out secondary decoration and casing for the entrance doors to make the entrance doors more beautiful and tidy. However, this method has the following disadvantages. It not only requires secondary construction, but also is time - consuming and laborious, increasing costs.
[0003] Therefore, this application provides a double - sleeve assembly structure of a metal door frame to meet the requirements. Content of the Utility Model
[0004] The purpose of this application is to provide a double - sleeve assembly structure of a metal door frame, aiming to solve the problems of time - consuming, laborious and resource - wasting in the secondary casing of the metal door frame.
[0005] To achieve the above purpose, this application provides the following technical solution: A double - sleeve assembly structure of a metal door frame, including an installation frame and an adjustment frame. The distance between the installation frame and the adjustment frame is adjustable, and the installation frame and the adjustment frame enclose a "冂" - shaped frame;
[0006] The installation frame includes inner vertical frames and an inner horizontal frame. The two ends of the inner horizontal frame are installed with the inner vertical frames through a mortise - tenon structure;
[0007] The adjustment frame includes outer vertical frames and an outer horizontal frame. There are two groups of outer vertical frames, which are respectively arranged at both ends of the outer horizontal frame and correspond to the positions of the inner vertical frames. By adopting the cooperation of the installation frame and the adjustment frame to replace the wooden casing, energy waste is reduced, and at the same time, it is durable and not easily damaged; it can be installed in place at one time, without secondary labor, improving efficiency and reducing costs.
[0008] Preferably, the mortise - tenon structure includes a first mortise - tenon structure and a second mortise - tenon structure. There are two groups of the first mortise - tenon structures, which are symmetrically arranged on both sides of the second mortise - tenon structure.
[0009] Preferably, the first mortise - tenon structure includes a first tenon and a first mortise. There are two groups of the first tenons, which are longitudinally arranged on the inner vertical frame, and the first mortises corresponding to the positions and matching the sizes of the first tenons are opened on the inner horizontal frame.
[0010] Preferably, the second mortise and tenon structure includes a second tenon and a second mortise and tenon groove, and the second tenon is provided in two groups and is laterally arranged on the inner vertical frame. The inner horizontal frame is provided with a second tenon and tenon groove adapted to the second tenon. The horizontal frame and the vertical frame in this structure are connected by a mortise and tenon structure, which reduces the welding process, ensures the strength of the door frame structure, and is convenient for transportation and assembly, while avoiding residual welding points that affect the appearance of the door frame.
[0011] Preferably, the outer vertical frame and the outer horizontal frame are connected by a third mortise and tenon structure, and the third mortise and tenon structure includes a third tenon and a third tenon groove. There are two groups of third tenons, which are arranged on the facing surfaces of the outer vertical frame and the outer horizontal frame, and the outer horizontal frame is provided with a third tenon groove adapted to the third tenon.
[0012] Preferably, a mounting hole is provided on the inner vertical frame, and a bolt is rotatably connected in the mounting hole. A threaded hole corresponding to and engaged with the position of the bolt is provided on the outer vertical frame. The distance between the mounting frame and the adjustment frame is adjusted by the bolt. By arranging a bolt between the mounting frame and the adjustment frame, the distance between the mounting frame and the adjustment frame can be adjusted through the relationship between the bolt and the threaded hole on the adjustment frame to adapt to walls of different thicknesses, thereby increasing the adaptability of the structure.
[0013] In summary, the technical effects and advantages of the utility model are:
[0014] In the utility model, the installation frame and the adjustment frame are used in combination to replace the wooden sheath, thereby reducing energy waste. At the same time, the utility model is durable and not easy to be damaged. The utility model can be installed in place at one time without the need for secondary labor, thereby improving efficiency and reducing costs.
[0015] In the present invention, bolts are provided between the installation frame and the adjustment frame, and the distance between the installation frame and the adjustment frame can be adjusted by engaging the bolts with the threaded holes on the adjustment frame to adapt to walls of different thicknesses, thereby increasing the adaptability of the structure.
[0016] In the present invention, the horizontal frame and the vertical frame in the structure are connected by a mortise and tenon structure, which reduces the welding process, ensures the structural strength of the door frame, facilitates transportation and assembly, and avoids residual welding points that affect the appearance of the door frame. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] 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.
[0018] Figure 1 It is a schematic structural diagram of the present utility model;
[0019] Figure 2 It is an exploded view of the present utility model;
[0020] Figure 3 It is a schematic diagram of a partial structure of the present utility model;
[0021] Figure 4 It is a partial exploded view of the present utility model.
[0022] In the figure: 1, inner vertical frame; 2, inner horizontal frame; 3, outer vertical frame; 4, outer horizontal frame; 5, bolt; 6, first tenon; 7, second tenon; 8, third mortise; 9, first mortise; 10, second mortise; 11, third tenon. Specific embodiments
[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0024] Embodiment 1: Refer to Figure 1-4 A double - sleeve assembly structure of a metal door frame as shown, including an installation frame and an adjustment frame, the distance between the installation frame and the adjustment frame is adjustable, and the installation frame and the adjustment frame enclose a "冂" - shaped frame;
[0025] The installation frame includes an inner vertical frame 1 and an inner horizontal frame 2, and the two ends of the inner horizontal frame 2 are installed with the inner vertical frame 1 through a tenon - mortise structure;
[0026] The tenon - mortise structure includes a first tenon - mortise structure and a second tenon - mortise structure. There are two groups of the first tenon - mortise structures, and they are symmetrically arranged on both sides of the second tenon - mortise structure. Through the cooperation of the two groups of tenon - mortise structures, replacing the original welding process not only increases the aesthetics of the metal door frame, but also facilitates the transportation and assembly of the metal door frame.
[0027] The first tenon - mortise structure includes a first tenon 6 and a first mortise 9. There are two groups of the first tenons 6, and they are longitudinally arranged on the inner vertical frame 1, and the inner horizontal frame 2 is provided with the first mortises 9 corresponding to the positions and matching the sizes of the first tenons 6.
[0028] The second tenon - mortise structure includes a second tenon 7 and a second mortise 10. There are two groups of the second tenons 7, and they are transversely arranged on the inner vertical frame 1, and the inner horizontal frame 2 is provided with the second mortises 10 adapted to the second tenons 7.
[0029] The adjustment frame is set to adapt to walls of different thicknesses, and the distance between the installation frame and the adjustment frame is adjusted to complete the installation of the metal door frame;
[0030] The adjustment frame includes an outer mullion 3 and an outer transverse frame 4 . The outer mullion 3 is provided in two groups, which are respectively arranged at the two ends of the outer transverse frame 4 and correspond to the positions of the inner mullion 1 .
[0031] The outer vertical frame 3 and the outer horizontal frame 4 are connected by a third mortise and tenon structure, which includes a third tenon 11 and a third tenon groove 8. Two groups of third tenons 11 are provided and are arranged on the facing surfaces of the outer vertical frame 3 and the outer horizontal frame 4. The outer horizontal frame 4 is provided with a third tenon groove 8 that is compatible with the third tenon 11.
[0032] The inner vertical frame 1 is provided with a mounting hole, in which a bolt 5 is rotatably connected. The outer vertical frame 3 is provided with a threaded hole corresponding to and engaged with the bolt 5 , and the distance between the mounting frame and the adjustment frame is adjusted by the bolt 5 .
[0033] Working principle of this utility model: During installation, the distance between the inner mullion 1 of the installation frame and the outer mullion 3 of the adjustment frame is adjusted according to the thickness of the wall to be installed. After the adjustment is completed, the inner mullion 1 and the outer mullion 3 are limited by using bolts 5 and then installed on the wall;
[0034] Align the first mortise 9 and the second mortise 10 on the inner transverse frame 2 with the first tenon 6 and the second tenon 7 on the inner vertical frame 1 and insert them. After insertion, use tools to bend the first tenon 6 and the second tenon 7 to connect the inner vertical frame 1 and the inner transverse frame 2 together. Follow the same steps as above to connect the outer vertical frame 3 and the outer transverse frame 4 to complete the installation of the metal door frame.
[0035] The electromechanical connection involved in the present invention is a common means used by those skilled in the art, and technical inspiration can be obtained through a limited number of experiments, which belongs to common knowledge.
[0036] Components not described in detail herein are prior art.
[0037] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. A double-set assembly structure of a metal door frame, characterized by: It includes an installation frame and an adjustment frame, the distance between the installation frame and the adjustment frame is adjustable, and the installation frame and the adjustment frame enclose a "冂"-shaped frame; The installation frame includes inner vertical frames (1) and inner horizontal frames (2), and the two ends of the inner horizontal frame (2) are installed with the inner vertical frames (1) through mortise and tenon structures; The adjustment frame includes outer vertical frames (3) and outer horizontal frames (4), there are two groups of the outer vertical frames (3), which are respectively arranged at both ends of the outer horizontal frame (4) and correspond to the positions of the inner vertical frames (1).
2. The double-set metal door frame assembly structure according to claim 1, characterized in that: The mortise and tenon structure includes a first mortise and tenon structure and a second mortise and tenon structure, there are two groups of the first mortise and tenon structures, and they are symmetrically arranged on both sides of the second mortise and tenon structure.
3. The double-set metal door frame assembly structure according to claim 2, characterized in that: The first mortise and tenon structure includes first tenons (6) and first mortises (9), there are two groups of the first tenons (6), and they are longitudinally arranged on the inner vertical frame (1), and the inner horizontal frame (2) is provided with the first mortises (9) corresponding to the positions of the first tenons (6) and matching in size.
4. The double-set metal door frame assembly structure according to claim 2, characterized in that: The second mortise and tenon structure includes second tenons (7) and second mortises (10), there are two groups of the second tenons (7), and they are horizontally arranged on the inner vertical frame (1), and the inner horizontal frame (2) is provided with second mortises (10) adapted to the second tenons (7).
5. The double-set metal door frame assembly structure according to claim 1, characterized in that: The outer vertical frame (3) and the outer horizontal frame (4) are connected through a third mortise and tenon structure, the third mortise and tenon structure includes third tenons (11) and third mortises (8), there are two groups of the third tenons (11), and they are arranged on the facing surfaces of the outer vertical frame (3) and the outer horizontal frame (4), and the outer horizontal frame (4) is provided with third mortises (8) adapted to the third tenons (11).
6. The metal door frame double-set assembly structure according to claim 1, characterized in that: Installation holes are provided on the inner vertical frame (1), bolts (5) are rotatably connected in the installation holes, threaded holes corresponding to the positions of the bolts (5) and meshing with them are provided on the outer vertical frame (3), and the distance between the installation frame and the adjustment frame is adjusted through the bolts (5).