Lightweight aluminum alloy edge-covered cabinet door

By attaching aluminum alloy edging profiles to the door frame formed by bending steel plates and simplifying the assembly process, the problems of large aluminum alloy usage and complex assembly are solved, achieving lightweight and aesthetically pleasing aluminum alloy cabinet doors.

CN224244719UActive Publication Date: 2026-05-15JIANGYIN BAISHITE CONTROL DISPLAY EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGYIN BAISHITE CONTROL DISPLAY EQUIP CO LTD
Filing Date
2025-05-20
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

While ensuring aesthetics, existing aluminum alloy cabinet doors use a large amount of aluminum alloy, leading to increased costs and complex assembly processes.

Method used

The door frame is made of steel plate bent into one piece, with aluminum alloy edging profiles attached to all four sides. The door frame is connected to the aluminum alloy edging profiles through door frame buckles, which simplifies the assembly process, reduces the amount of aluminum alloy used, and the middle part of the steel plate directly serves as the door panel.

Benefits of technology

While maintaining an aesthetically pleasing appearance, the amount of aluminum alloy used has been reduced, the assembly process has been simplified, and the cabinet doors are made thinner and lighter, making it easier to maintain a lightweight design.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224244719U_ABST
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Abstract

The utility model relates to a lightweight aluminum alloy edged cabinet door, which comprises a door frame, aluminum alloy edged section bars, door frame buckles and corner connecting pieces, the door frame is formed by integrally bending a steel plate, the aluminum alloy edged section bars are adhered to four sides of the door frame and are connected with the door frame through the door frame buckles, and the corner connecting pieces are connected with the door frame through the door frame buckles. Angle connecting pieces are arranged between the corners of the adjacent aluminum alloy edge-covering profiles, the aluminum alloy edge-covering profiles are in a flat strip shape and comprise U-shaped edge-covering sections, the U-shaped edge-covering sections are arranged on the edges of the door frame in a sleeved mode, T-shaped limiting blocks are symmetrically arranged in the U-shaped edge-covering sections, a buckle inserting groove is formed between every two T-shaped limiting blocks, and the buckle inserting grooves are connected with the U-shaped edge-covering sections. The T-shaped limiting blocks, the bottom wall of the U-shaped edge covering section and the side wall of the U-shaped edge covering section form corner inserting grooves. According to the utility model, the aluminum alloy edge-covering section bars are adhered to the four edges of the door frame formed by integrally bending the steel plate, so that on the premise of ensuring the attractive appearance, the use amount of aluminum alloy is greatly reduced, meanwhile, the assembly process is simplified, and the light weight of the cabinet door is conveniently kept.
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Description

Technical Field

[0001] This utility model relates to the field of vehicle control room cabinet door technology, specifically to a lightweight aluminum alloy edge-sealed cabinet door. Background Technology

[0002] As the image window and station-level control platform of each subway line, the overall aesthetics, functional reliability, and human-machine harmony of the subway station control room have always been highly valued by subway companies.

[0003] The vehicle control room is neatly arranged with filing cabinets for storing documents and materials. To enhance the aesthetics of the control room, the cabinet doors are often made of aluminum alloy. A corner protection cabinet door, patent number 202220135389.0, has a door frame comprising a frame profile, plastic corner pieces, and connecting pieces. The inner section of the frame profile has a cavity, and both ends of the frame profile have two-section chamfered corners. These chamfered corners divide the cavity into an inner 45° beveled segment and an outer 90° right-angled segment. The outer sides of the joint between two adjacent frame profiles are connected by plastic corner pieces, and the inner sides of the joint between two adjacent frame profiles are spliced ​​at a 45° bevel. The large amount of aluminum alloy used increases the cost. Utility Model Content

[0004] The purpose of this utility model is to overcome the above-mentioned shortcomings and provide a lightweight aluminum alloy edged cabinet door. By attaching aluminum alloy edged profiles to the four sides of the door frame formed by integral bending of steel plate, the amount of aluminum alloy used is greatly reduced while ensuring the appearance is beautiful. At the same time, the assembly process is simplified. The middle part of the steel plate directly serves as the door panel, eliminating the need for additional door panel installation, making the cabinet door thinner and easier to maintain the lightweight of the cabinet door.

[0005] The purpose of this utility model is achieved as follows:

[0006] A lightweight aluminum alloy edged cabinet door includes a door frame, aluminum alloy edged profiles, door frame clips, and corner connectors. The door frame is integrally bent from a steel plate. The aluminum alloy edged profiles are attached to the four sides of the door frame. The aluminum alloy edged profiles are connected to the door frame via door frame clips. Angle connectors are provided between the corners of adjacent aluminum alloy edged profiles. The aluminum alloy edged profiles are flat strips, including U-shaped edged sections. The U-shaped edged sections are fitted onto each side of the door frame. T-shaped limiting blocks are symmetrically arranged inside the U-shaped edged sections. Clip slots are formed between two T-shaped limiting blocks. The T-shaped limiting blocks and the bottom and side walls of the U-shaped edged sections form corner slots.

[0007] Preferably, the door frame buckles are arranged at intervals on each side of the door frame, and each side of the door frame has a buckle hole corresponding to the door frame buckle.

[0008] Preferably, the four sides of the steel plate are bent backward to form an upper door frame fold, a lower door frame fold, an opening fold, and a support fold, respectively, and the middle part of the steel plate directly serves as the door panel.

[0009] Preferably, the upper door frame fold and the lower door frame fold are L-shaped.

[0010] Preferably, the door opening fold is located on the door opening side on the left and right sides of the steel plate, and the door opening fold has a U-shaped groove segment with an opening facing forward, and the top of the outer groove wall of the U-shaped groove segment is connected to a shielding edge.

[0011] Preferably, the inner wall of the U-shaped groove is inclined backward, and the bottom width of the U-shaped groove is smaller than the opening width.

[0012] Preferably, the outer groove wall of the U-shaped groove section is used to install door frame buckles, and the shielding edge is flush with the door panel. The shielding edge is used to shield the door frame buckles installed inside the U-shaped groove section, and at the same time acts as a door handle when opening the cabinet door.

[0013] Preferably, the supporting fold away from the door frame on the opening side includes a U-shaped supporting section and an extension section. The top of the inner wall of the U-shaped supporting section is connected to the extension section, and the extension section is attached to the back of the door panel. The outer wall of the U-shaped supporting section is used to install door frame buckles, and the bottom surface of the U-shaped supporting section is used to install door hinges.

[0014] The beneficial effects of this utility model are:

[0015] By attaching aluminum alloy edging profiles to the four sides of the door frame formed by bending the steel plate in one piece, the amount of aluminum alloy used is greatly reduced while ensuring the appearance is beautiful. At the same time, the assembly process is simplified. The middle part of the steel plate directly serves as the door panel, eliminating the need for a separate door panel. This makes the cabinet door thinner and easier to maintain the lightweight design of the cabinet door. Attached Figure Description

[0016] Figure 1 This is a structural schematic diagram of a lightweight aluminum alloy-edged cabinet door according to the present invention.

[0017] Figure 2 for Figure 1 A schematic diagram of the installation structure.

[0018] Figure 3 This is the front view of the door frame.

[0019] Figure 4 for Figure 3 A sectional view.

[0020] Figure 5 This is an assembly diagram of the door frame's folded edge side.

[0021] Figure 6 This is an assembly diagram of the supporting folded edge side of the door frame.

[0022] Figure 7 This is a schematic diagram of the cross-section of an aluminum alloy edging profile.

[0023] Figure 8 This is a schematic diagram showing the installation of aluminum alloy edging profiles with door frame clips and corner connectors.

[0024] in:

[0025] 1. Door frame; 1.1. Upper door frame folded edge; 1.2. Lower door frame folded edge; 1.3. Opening folded edge; 1.4. U-shaped groove section; 1.4.1. Covering edge; 1.4.2. Support folded edge; 1.5. U-shaped support section; 1.5.1. Extension section; 1.5.2. Door panel; 1.6. Aluminum alloy edging profile; 2. U-shaped edging section; 2.1. T-shaped limiting block; 2.2. Buckle slot; 2.3. Corner slot; 2.4. Door frame buckle; 3. Corner connector; 4. Detailed Implementation

[0026] See Figure 1-8 This utility model relates to a lightweight aluminum alloy edge-sealed cabinet door, including a door frame 1, aluminum alloy edge-sealed profiles 2, door frame buckles 3, and corner connectors 4. The door frame 1 is integrally bent from a steel plate. The aluminum alloy edge-sealed profiles 2 are attached to the four sides of the door frame 1. The aluminum alloy edge-sealed profiles 2 are connected to the door frame through the door frame buckles 3. The door frame buckles 3 are arranged at intervals on each side of the door frame 1. Each side of the door frame 1 has a buckle hole 1.1 corresponding to the door frame buckle 3. Angle connectors 4 are provided between the corners of adjacent aluminum alloy edge-sealed profiles 2.

[0027] The aluminum alloy edging profile 2 is a flat strip, including a U-shaped edging section 2.1. The U-shaped edging section 2.1 is fitted onto each side of the door frame 1. T-shaped limiting blocks 2.2 are symmetrically arranged inside the U-shaped edging section 2.1. A snap-fit ​​slot 2.3 is formed between the two T-shaped limiting blocks 2.2. The T-shaped limiting blocks 2.2 and the bottom and side walls of the U-shaped edging section 2.1 form corner slots 2.4.

[0028] The four sides of the steel plate are bent backward to form an upper door frame fold 1.2, a lower door frame fold 1.3, a door opening fold 1.4, and a support fold 1.5. The middle part of the steel plate directly serves as the door panel 1.6, eliminating the need for a separate door panel and making the cabinet door thinner. The upper door frame fold 1.2 and the lower door frame fold 1.3 are L-shaped. The door opening fold 1.4 is located on the opening side of the steel plate on the left and right sides. The door opening fold 1.4 has a U-shaped groove segment 1.4.1 with an opening facing forward. The U-shaped groove segment 1.4.1... The inner groove wall slopes backward, and the bottom width of the U-shaped groove segment 1.4.1 is smaller than the opening width, making it easy for fingers to reach into the switch cabinet door. The outer groove wall of the U-shaped groove segment 1.4.1 is used to install the door frame buckle 3. The top of the outer groove wall of the U-shaped groove segment 1.4.1 is connected to the shielding edge 1.4.2, which is flush with the door panel 1.6. The shielding edge 1.4.2 is used to shield the door frame buckle 3 installed inside the U-shaped groove segment 1.4.1, and also acts as a door handle when opening the cabinet door.

[0029] The supporting flange 1.5, located away from the door frame 1 on the opening side, includes a U-shaped supporting section 1.5.1 and an extension section 1.5.2. The top of the inner wall of the U-shaped supporting section 1.5.1 is connected to the extension section 1.5.2. The extension section 1.5.2 is fitted to the back of the door panel 1.6 to improve the strength of the door frame. The outer wall of the U-shaped supporting section 1.5.1 is used to install the door frame buckle 3, and the bottom surface of the U-shaped supporting section 1.5.1 is used to install the door hinge.

[0030] Installation method:

[0031] Insert the door frame clips into the aluminum alloy edging profile along the clip slots, adjust the position of the door frame clips so that the clip openings of the door frame clips match the clip holes, press the aluminum alloy edging profile, and the aluminum alloy edging profile will drive the door frame clips into the clip holes of the door frame, thus completing the installation of the aluminum alloy edging profile.

[0032] Meanwhile, corner connectors are installed at the corners formed by adjacent aluminum alloy edging profiles. The corner connectors are provided with inserts corresponding to the corner slots, and the inserts extend into the corner slots.

[0033] In addition to the above embodiments, this utility model also includes other implementation methods. All technical solutions formed by equivalent transformation or equivalent substitution should fall within the protection scope of the claims of this utility model.

Claims

1. A lightweight aluminum alloy-edged cabinet door, characterized in that: The device includes a door frame, aluminum alloy edging profiles, door frame clips, and corner connectors. The door frame is integrally bent from a steel plate. Aluminum alloy edging profiles are attached to the four sides of the door frame. The aluminum alloy edging profiles are connected to the door frame via door frame clips. Angle connectors are provided between the corners of adjacent aluminum alloy edging profiles. The aluminum alloy edging profiles are flat strips, including U-shaped edging sections. The U-shaped edging sections are fitted onto each side of the door frame. T-shaped limiting blocks are symmetrically provided inside the U-shaped edging sections. Clip slots are formed between two T-shaped limiting blocks. Corner slots are formed between the T-shaped limiting blocks and the bottom and side walls of the U-shaped edging sections.

2. The lightweight aluminum alloy edge-sealed cabinet door according to claim 1, characterized in that: The door frame buckles are arranged at intervals on each side of the door frame, and each side of the door frame has a buckle hole corresponding to the door frame buckle.

3. A lightweight aluminum alloy-edged cabinet door according to claim 1, characterized in that: The four sides of the steel plate are bent backward to form the upper door frame fold, the lower door frame fold, the door opening fold, and the support fold, respectively, and the middle part of the steel plate directly serves as the door panel.

4. A lightweight aluminum alloy-edged cabinet door according to claim 3, characterized in that: The upper and lower door frame folds are L-shaped.

5. A lightweight aluminum alloy-edged cabinet door according to claim 3, characterized in that: The door opening fold is located on the door opening side on the left and right sides of the steel plate. The door opening fold has a U-shaped groove section with an opening facing forward. The top of the outer groove wall of the U-shaped groove section is connected to a shielding edge.

6. A lightweight aluminum alloy-edged cabinet door according to claim 5, characterized in that: The inner wall of the U-shaped groove is inclined backward, and the bottom width of the U-shaped groove is smaller than the opening width.

7. A lightweight aluminum alloy-edged cabinet door according to claim 5, characterized in that: The outer wall of the U-shaped groove is used to install door frame buckles. The shielding edge is flush with the door panel and is used to shield the door frame buckles installed inside the U-shaped groove, while also acting as a door handle when opening the cabinet door.

8. A lightweight aluminum alloy-edged cabinet door according to claim 1, characterized in that: The supporting fold away from the door frame on the opening side includes a U-shaped supporting section and an extension section. The top of the inner wall of the U-shaped supporting section is connected to the extension section, and the extension section is attached to the back of the door panel. The outer wall of the U-shaped supporting section is used to install door frame buckles, and the bottom surface of the U-shaped supporting section is used to install door hinges.