Special aluminum profile for waterproof free door core

By using a multi-layered aluminum profile design and a quick-release mechanism, the problems of water seepage and inconvenient disassembly of the waterproof swing door in humid environments are solved, enabling rapid disassembly and efficient maintenance, and improving waterproof performance and service life.

CN224244725UActive Publication Date: 2026-05-15SHANG HAI SU WEN ZHI NENG SHE BEI YOU XIAN GONG SI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANG HAI SU WEN ZHI NENG SHE BEI YOU XIAN GONG SI
Filing Date
2025-06-09
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

Existing waterproof swing doors are prone to water seepage and poor drainage in humid environments, and are inconvenient to disassemble and maintain, affecting their efficiency and lifespan.

Method used

The aluminum profile design features a multi-layer structure, including a frame, main door panel, door core, sub-door panel, and quick-release mechanism. It combines a waterproof layer, anti-corrosion layer, heat-resistant layer, and reinforcing layer. Quick assembly and disassembly are achieved through bolts and spring washers, and automatic closing is achieved through a drain outlet and follow-up rod structure.

Benefits of technology

It achieves effective waterproofing in humid environments, quick disassembly and assembly, improved maintenance efficiency, extended service life, reduced maintenance costs, and stability and durability in complex environments.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of building doors and windows, and discloses a special aluminum profile for a waterproof free door core, which comprises a frame, a plurality of water outlets are arranged outside the frame, a main door plate is fixedly connected inside the frame, a door core is fixedly connected outside the main door plate, an auxiliary door plate is fixedly connected outside the door core, and the auxiliary door plate is fixedly connected outside the door core. The exterior of the door core is fixedly connected with a quick release mechanism, and the interior of the main door plate is fixedly connected with a protection mechanism; the quick release mechanism comprises a bolt, the outer portion of the bolt is in threaded connection with the interior of the door core, a threaded hole is formed in the door core, and the outer portion of the bolt is fixedly connected with a spring washer. According to the utility model, by rotating the bolt, the spring washer drives the frame to move, and the bolt drives the door core to move, so that the door core can be quickly disassembled and assembled, the maintenance efficiency is greatly improved, the positioning is accurate during installation, the sectional material is not easy to damage during repeated disassembly and assembly, and the reusability of the door body is enhanced.
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Description

Technical Field

[0001] This utility model relates to the field of building door and window technology, and in particular to a special aluminum profile for waterproof swing door core. Background Technology

[0002] It plays a key role in humid environments such as logistics centers, factories, restaurants, and catering centers. In logistics warehouses and factory workshops, it can resist forklift collisions and moisture erosion, ensuring smooth high-frequency cargo transportation. In catering establishments, the water-resistant material and handle-less design facilitate cleaning and disinfection, meet food hygiene requirements, block humid air and odors, and reduce maintenance costs, achieving a dual guarantee of efficient passage and hygiene and safety.

[0003] While some existing waterproof sliding doors offer some degree of waterproofing, they are prone to leakage in environments with prolonged high humidity or large amounts of water accumulation due to poor drainage. Some sliding doors and windows have poorly designed rubber strips, resulting in large gaps at the joints between the window sashes, allowing air to blow in rainwater. Casement doors and windows have improperly designed waterstops, which cannot effectively prevent rainwater from seeping in. Furthermore, the aluminum profiles generally lack sufficient strength and rigidity, making them prone to deformation under changes in humidity, leading to the failure of the waterproof structure.

[0004] However, in actual use, the inability to quickly disassemble will lead to a significant reduction in maintenance efficiency. It requires professional tools and multiple people to disassemble, which is time-consuming and labor-intensive, affecting the normal operation of the premises. After long-term use, water and stains inside the door core are difficult to clean in time, which can easily breed mold and corrode the profile, shortening the life of the door. Moreover, it is impossible to quickly replace parts during fault repair, causing a chain of problems. In response to the above problems, we now propose a special aluminum profile for waterproof swing door cores. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a special aluminum profile for waterproof swing door cores, aiming to improve the problem that some waterproof swing door cores in the prior art cannot be quickly disassembled.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] Waterproof free-swing door core aluminum profile, including frame, multiple drainage outlets on the outside of the frame, main door panel fixedly connected inside the frame, door core fixedly connected outside the main door panel, secondary door panel fixedly connected outside the door core, quick-release mechanism fixedly connected outside the door core, and protective mechanism fixedly connected inside the main door panel.

[0008] The quick-release mechanism includes a bolt, the external thread of which is connected to the inside of the door core, the inside of which has a threaded hole, a spring washer fixedly connected to the outside of the bolt, and a support assembly fixedly connected to the inside of the main door panel;

[0009] As a further description of the above technical solution:

[0010] The support assembly includes longitudinal reinforcing ribs, which are externally fixedly connected to the interior of the main door panel, and the main door panel is externally fixedly connected to multiple transverse reinforcing ribs.

[0011] As a further description of the above technical solution:

[0012] The protective mechanism includes a waterproof layer, the exterior of which is fixedly connected to the interior of the main door panel, and an anti-corrosion layer is fixedly connected to the exterior of the waterproof layer.

[0013] As a further description of the above technical solution:

[0014] The anti-corrosion layer is fixedly connected to the outside of a heat-resistant layer, and the heat-resistant layer is fixedly connected to the outside of a reinforcing layer.

[0015] As a further description of the above technical solution:

[0016] The frame is fixedly connected to a fixing plate on the outside, and the fixing plate is fixedly connected to a support column on the outside.

[0017] As a further description of the above technical solution:

[0018] The support column is externally fixedly connected to multiple follower rods, and a return spring is sleeved on the outside of each follower rod.

[0019] As a further description of the above technical solution:

[0020] The return spring is externally fixedly connected to a hollow column, and the hollow column is externally fixedly connected to the inside of the support column.

[0021] As a further description of the above technical solution:

[0022] One end of the reset spring is fixedly connected to the outside of the support column, and the other end of the reset spring is fixedly connected to the outside of the hollow column.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this utility model, by rotating the bolt, the spring washer causes the frame to move, which in turn causes the bolt to move the door core, thus enabling the quick assembly and disassembly of the door core. Single-person operation requires no professional tools, greatly improving maintenance efficiency and reducing costs. The positioning is accurate during installation, and repeated assembly and disassembly are not likely to damage the profile, enhancing the reusability of the door. It is suitable for high-frequency maintenance scenarios, taking into account both convenience and reliability.

[0025] 2. In this utility model, a protective mechanism is set inside the door panel to prevent water intrusion and avoid corrosion of the profile; the anti-corrosion layer enhances the resistance to chemical corrosion; the temperature-resistant layer adapts to high and low temperature environments and prevents the material from deforming due to thermal expansion and contraction; the reinforcing layer improves the overall strength and resists external impact. The multi-layer synergy ensures the stability of the door core performance in all aspects and meets the requirements of waterproofing, durability and adaptability to complex environments. Attached Figure Description

[0026] Figure 1 This is a three-dimensional schematic diagram of the special aluminum profile for the waterproof free-swing door core proposed in this utility model;

[0027] Figure 2 This is a schematic diagram of the structure of the waterproof free-swing door core aluminum profile proposed in this utility model;

[0028] Figure 3 This is a schematic diagram of the sub-door panel of the special aluminum profile for the waterproof free door core proposed in this utility model;

[0029] Figure 4 for Figure 2 Enlarged view of point A in the middle;

[0030] Figure 5 for Figure 3 Enlarged view of point B in the middle;

[0031] Figure 6 This is a schematic diagram of the waterproof layer of the special aluminum profile for waterproof free door core proposed in this utility model.

[0032] Legend:

[0033] 1. Frame; 2. Drain outlet; 3. Main door panel; 4. Secondary door panel; 5. Door core; 6. Threaded hole; 7. Bolt; 8. Spring washer; 9. Longitudinal reinforcing rib; 10. Transverse reinforcing rib; 11. Fixing plate; 12. Support column; 13. Follower rod; 14. Return spring; 15. Hollow column; 16. Waterproof layer; 17. Anti-corrosion layer; 18. Temperature resistant layer; 19. Reinforcing layer. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] Reference Figure 1 , Figure 2 , Figure 4This utility model provides an embodiment of a waterproof free-swinging door core aluminum profile, including a frame 1. The frame 1 is a regular rectangular ring with rounded corners to enhance impact resistance and avoid sharp edges. Multiple drainage holes 2 are provided on the outside of the frame 1. When rainwater or accumulated water comes into contact with the frame 1, it will flow out quickly along the slope under the action of gravity to prevent water accumulation and ensure waterproof performance. A main door panel 3 is fixedly connected inside the frame 1. The outer surface of the main door panel 3 is tightly fitted and fixed to the cubic door core 5. The door core 5 is fixedly connected to the outside of the main door panel 3. The door core 5 adopts a honeycomb hollow structure inside to reduce weight while ensuring high strength support. A secondary door panel 4 is fixedly connected to the outside of the door core 5. A quick-release mechanism is fixedly connected to the outside of the door core 5. A protective mechanism is fixedly connected to the inside of the main door panel 3.

[0036] The quick-release mechanism includes bolt 7. The external thread of bolt 7 precisely engages with the threaded hole 6 that runs through the front and back of the door core 5. The external thread of bolt 7 connects to the inside of the door core 5, where the threaded hole 6 is located. A spring washer 8 is fixedly connected to the outside of bolt 7. The spring washer 8 undergoes elastic deformation under pressure, generating a spring force to both sides, providing a continuous preload force to bolt 7 and counteracting the loosening tendency caused by the opening and closing vibration of the door. During disassembly, bolt 7 is turned in the reverse direction to quickly separate the door core 5, facilitating inspection and replacement. The main door panel 3 is internally fixed... The main door panel 3 is equipped with a support assembly, which includes a longitudinal reinforcing rib 9. The longitudinal reinforcing rib 9 is an I-shaped strip that is vertically fixed inside the main door panel 3. It can achieve a large moment of inertia with less material, thereby enhancing the vertical compressive and bending resistance of the main door panel 3. The longitudinal reinforcing rib 9 is externally fixedly connected to the inside of the main door panel 3. The main door panel 3 is externally fixedly connected to multiple transverse reinforcing ribs 10. The transverse reinforcing ribs 10 are perpendicularly intersecting with the longitudinal reinforcing rib 9 to form a robust grid-like support system, thereby improving the horizontal impact resistance and structural stability of the door panel.

[0037] Reference Figure 3 , Figure 5 , Figure 6 The protective mechanism includes a waterproof layer 16, which is a flexible membrane structure that fits tightly against the inner side of the main door panel 3. Its edges are folded upward to form a U-shaped edging, completely wrapping the inner edge of the main door panel 3. The waterproof layer 16 is externally fixedly connected to the inside of the main door panel 3. An anti-corrosion layer 17 is externally fixedly connected to the waterproof layer 16. The anti-corrosion layer 17 adopts a double-layer structure design. The inner layer is a metal plating layer that is uniformly attached to the outer surface of the waterproof layer 16 through an electrochemical deposition process. The outer layer is a fluorocarbon paint coating with uniform thickness and a smooth surface, which can resist the erosion of acid and alkali solutions and greatly improve the corrosion resistance of the door core 5. A heat-resistant layer 18 is externally fixedly connected to the anti-corrosion layer 17.

[0038] The heat-resistant layer 18 is composed of aerogel felt and ceramic fiber composite, containing a dense nano-scale pore structure. A reinforcing layer 19 is fixedly connected to the outside of the heat-resistant layer 18. When the door is subjected to external impact, the reinforcing layer 19 absorbs energy through the tensile deformation of the fibers, improving the impact resistance of the door core 5, effectively dispersing stress, and avoiding local deformation. A fixing plate 11 is fixedly connected to the outside of the frame 1, and a support column 12 is fixedly connected to the outside of the fixing plate 11. Multiple follower rods 13 are fixedly connected to the outside of the support column 12. When the door is opened by force, the follower rods 13 drive the return spring 14 to compress, and the spring accumulates elastic potential energy. After the external force disappears, the spring releases energy and pushes the follower rods 13 to return to their original position. A return spring 14 is sleeved on the outside of the follower rod 13. A hollow column 15 is fixedly connected to the outside of the return spring 14. The hollow column 15 is fixedly connected to the inside of the support column 12. One end of the return spring 14 is fixedly connected to the outside of the support column 12, and the other end of the return spring 14 is fixedly connected to the outside of the hollow column 15.

[0039] Working principle: Rainwater or accumulated water comes into contact with the frame 1 and is discharged under gravity along the inclined surface of the drain outlet 2, pushing the door panel, causing the door body to move along the follower rod 13, compressing the return spring 14 and accumulating elastic potential energy; after the external force disappears, the return spring 14 releases energy to push the follower rod 13 to return to its original position, causing the door body to close automatically. If the door core 5 malfunctions, the bolt 7 is turned in the opposite direction to release the engagement with the threaded hole 6, overcome the pre-tightening force of the spring washer 8, and quickly separate the door core 5 for inspection and replacement. The grid structure formed by the longitudinal reinforcing ribs 9 and the transverse reinforcing ribs 10 inside the main door panel 3 resists external forces in the vertical and horizontal directions.

[0040] When the waterproof swing door is in use, if water comes into contact with the door panel, the waterproof layer 16 adheres to the inside of the main door panel 3 with its flexible membrane structure, preventing water from seeping in. The micro-convex texture on the surface guides the accumulated water to the drain outlet 2 for discharge. When acidic or alkaline substances in the external environment come into contact with the door core 5, the metal plating layer of the anti-corrosion layer 17 and the fluorocarbon paint coating form a barrier. When encountering temperature changes, the nano-scale pore structure in the heat-resistant layer 18 slows down heat conduction. When the door is subjected to external impact, the carbon fiber of the reinforcing layer 19 absorbs energy through tensile deformation.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A special aluminum profile for waterproof swing door core, including frame (1), characterized in that: The frame (1) has multiple drainage outlets (2) on its outside. The frame (1) has a main door panel (3) fixedly connected inside. The main door panel (3) has a door core (5) fixedly connected outside. The door core (5) has a secondary door panel (4) fixedly connected outside. The door core (5) has a quick-release mechanism fixedly connected outside. The main door panel (3) has a protective mechanism fixedly connected inside. The quick-release mechanism includes a bolt (7), the external thread of which is connected to the inside of the door core (5), the inside of which is provided with a threaded hole (6), a spring washer (8) is fixedly connected to the outside of the bolt (7), and a support assembly is fixedly connected to the inside of the main door panel (3).

2. The waterproof free-swing door core aluminum profile according to claim 1, characterized in that: The support assembly includes a longitudinal reinforcing rib (9), which is externally fixedly connected to the interior of the main door panel (3), and the main door panel (3) is externally fixedly connected to a plurality of transverse reinforcing ribs (10).

3. The waterproof free-swing door core aluminum profile according to claim 2, characterized in that: The protective mechanism includes a waterproof layer (16), the outside of which is fixedly connected to the inside of the main door panel (3), and an anti-corrosion layer (17) is fixedly connected to the outside of the waterproof layer (16).

4. The waterproof free-swing door core aluminum profile according to claim 3, characterized in that: The anti-corrosion layer (17) is fixedly connected to the outside of a heat-resistant layer (18), and the heat-resistant layer (18) is fixedly connected to the outside of a reinforcing layer (19).

5. The waterproof free-swing door core aluminum profile according to claim 1, characterized in that: The frame (1) is fixedly connected to a fixing plate (11), and the fixing plate (11) is fixedly connected to a support column (12).

6. The waterproof free-swing door core aluminum profile according to claim 5, characterized in that: The support column (12) is externally fixedly connected to a plurality of follower rods (13), and a return spring (14) is sleeved on the outside of the follower rods (13).

7. The waterproof free-swing door core aluminum profile according to claim 6, characterized in that: The return spring (14) is externally fixedly connected to a hollow column (15), and the hollow column (15) is externally fixedly connected to the inside of the support column (12).

8. The waterproof free-swing door core aluminum profile according to claim 7, characterized in that: One end of the return spring (14) is fixedly connected to the outside of the support column (12), and the other end of the return spring (14) is fixedly connected to the outside of the hollow column (15).