Door page rotating shaft protection device
By wrapping a protective decorative strip around the hinge of the door, the problem of easy damage to the hinge is solved, improving the durability and safety of the hinge, while also enhancing the door's aesthetics and fire resistance.
Patent Information
- Application Number
- CN202520113660.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-17
- Publication Date
- 2026-01-16
- Estimated Expiration
- 2035-01-17
AI Technical Summary
In existing technologies, door hinges are exposed to the outside and are easily damaged by external pressure, affecting their stability and security.
A door hinge protection device was designed, which consists of a hinge protection decorative strip wrapped around the outside of the hinge. The decorative strip has a rectangular groove to accommodate the hinge, and the outer side has an arc surface and a fireproof layer. It adopts a split installation structure and is made of silicate and fiber reinforced materials.
It effectively reduces the contact between the hinge and the external environment, improves the durability and safety of the hinge, enhances the structural stability of the door, improves its aesthetics and fire resistance, and protects the safety of people and property.
Smart Images

Figure CN223805977U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application relates to the technical field of door hinge shafts, in particular to a door hinge shaft protection device. BACKGROUND
[0002] A door hinge shaft is a hardware component used to connect a door leaf and a door frame, allowing the door leaf to rotate smoothly around a fixed shaft when opening and closing, while ensuring the stability and safety of the door leaf.
[0003] However, in the prior art, the door hinge shaft is usually exposed to the outside, which may cause damage to the door hinge shaft due to external pressure. Therefore, the application provides a door hinge shaft protection device. CONTENT OF THE UTILITY MODEL
[0004] In view of the deficiencies of the prior art, the application provides a door hinge shaft protection device to solve the problem of damage to the door hinge shaft caused by external pressure in the prior art.
[0005] The above-mentioned purpose of the application is achieved by the following technical scheme: a door hinge shaft protection device, comprising a door frame, a rotating door, and a hinge shaft protection device between the door frame and the rotating door, the door frame is fixedly provided with a first hinge, the rotating door is fixedly connected with a second hinge, a through slot is formed in the first hinge and the second hinge, a door hinge shaft is rotatably arranged in the through slot, and the hinge shaft protection device comprises a hinge shaft protection decorative strip for wrapping the door hinge shaft.
[0006] By adopting the above-mentioned technical scheme, the door hinge shaft is protected inside by the hinge shaft protection decorative strip, thereby reducing contact with the outside. When subjected to external force, fire, or dust, the hinge shaft protection decorative strip wrapped outside the door hinge shaft will first withstand external influences, thereby reducing external damage to the door hinge shaft. At the same time, the hinge shaft protection decorative strip improves the aesthetics of the hinge shaft.
[0007] Further, a rectangular slot is formed in the hinge shaft protection decorative strip, and the first hinge and the second hinge extend into the hinge shaft protection decorative strip through the rectangular slot.
[0008] By adopting the above-mentioned technical scheme, the rectangular slot is provided for the first hinge and the second hinge to extend into the hinge shaft protection decorative strip, thereby ensuring the normal rotation between the rotating door and the door frame.
[0009] Further, an arc-shaped curved surface is formed on the outside of the hinge shaft protection decorative strip.
[0010] By adopting the above-mentioned technical scheme, when the rotating door is further rotated, the arc-shaped curved surface on the hinge shaft protection decorative strip can fit the side wall of the door frame, avoiding the hinge shaft protection decorative strip and the door frame from being stuck when rotating.
[0011] Further, the rotating shaft protection decorative strip and the rotating door are provided with a mounting structure.
[0012] Further, the mounting structure comprises a connecting groove provided on the rotating door, and a connecting strip fixedly provided on the rotating shaft protection decorative strip and inserted into the connecting groove.
[0013] By adopting the above technical scheme, the rotating shaft protection decorative strip and the rotating door are connected by the rear mounting mode in the present application, specifically, the connecting strip on the rotating shaft protection decorative strip is aligned with the connecting groove on the rotating door after the rotating door and the door frame are connected together, and then the two are connected together by welding or the like, and in the present application, the split type is adopted, so that the transportation is facilitated.
[0014] Further, the first hinge and the second hinge are respectively provided with a plurality of groups between the rotating door and the door frame.
[0015] By adopting the above technical scheme, by providing a plurality of groups of the first hinge and the second hinge on each side, it can be ensured that there are a plurality of stress points during rotation.
[0016] Further, the outer side of the rotating shaft protection decorative strip is fixedly provided with a fireproof layer.
[0017] By adopting the above technical scheme, the setting of the fireproof layer can ensure that the door leaf rotating shaft can also rotate normally when a fire safety hazard occurs.
[0018] Further, the fireproof layer is made of silicate and fiber reinforced material.
[0019] By adopting the above technical scheme, the fireproof layer made of silicate and fiber reinforced material is processed by high temperature and high pressure, and has excellent fireproof and heat insulation performance.
[0020] In summary, the present application includes the following beneficial technical effects: By the arrangement of the rotating shaft protection decorative strip, the door leaf rotating shaft is effectively wrapped, which significantly reduces the direct contact between the rotating shaft and the external environment. This wrapping not only reduces the risk of damage to the rotating shaft due to external environmental factors (such as dust, moisture, corrosion, etc.), but also improves the durability and service life of the rotating shaft. When the door leaf is subjected to external force, the rotating shaft protection decorative strip can serve as the first line of defense, bearing and dispersing pressure, thereby effectively protecting the rotating shaft from damage. The presence of the rotating shaft protection device enhances the overall structural stability of the door leaf, reducing the risk of door leaf detachment or damage due to rotating shaft failure. In public places or areas where doors need to be frequently opened and closed, this safety enhancement is particularly important, ensuring the safety of personnel and property. The rotating shaft protection decorative strip not only has a protective function, but its design also takes into account aesthetics. By selecting appropriate materials, colors, and shapes, the decorative strip can coordinate with the overall style of the door frame and rotating door, enhancing the visual effect of the entire door. This design not only meets practical needs, but also meets people's pursuit of aesthetics and individuality. BRIEF DESCRIPTION OF DRAWINGS
[0021] Figure 1 is a schematic diagram of the overall structure in the embodiment;
[0022] Figure 2 is a schematic diagram of the structure after removing the door frame in the embodiment;
[0023] Figure 3 is Figure 2 an enlarged view of position A in the embodiment;
[0024] Figure 4 is Figure 2 an enlarged view of position B in the embodiment.
[0025] Reference signs: 1, door frame; 11, first hinge; 2, rotating door; 21, second hinge; 3, rotating shaft protection decorative strip; 30, door leaf rotating shaft; 31, connecting strip; 32, connecting groove; 33, rectangular groove. DETAILED DESCRIPTION
[0026] The present application will be further described in detail below in conjunction with the drawings.
[0027] In the embodiment, refer to Figure 1 - Figure 4The door hinge protection device comprises a door frame 1, a rotating door 2, and a hinge protection device between the door frame 1 and the rotating door 2. The door frame 1 is fixedly provided with a first hinge 11, and the rotating door 2 is fixedly connected with a second hinge 21. The first hinge 11 and the second hinge 21 are both provided with a through slot, and a door hinge 30 is rotatably arranged in the through slot. The hinge protection device comprises a hinge protection decorative strip 3 for wrapping the door hinge 30. The door hinge 30 is protected inside through the arrangement of the hinge protection decorative strip 3, thereby reducing the contact with the outside. When an external force is applied, the hinge protection decorative strip 3 wrapped inside the door hinge 30 will first bear the pressure, thereby reducing the damage caused by the outside. Meanwhile, the arrangement of the hinge protection decorative strip 3 improves the aesthetics of the hinge.
[0028] In the embodiment, a rectangular slot 33 is formed in the hinge protection decorative strip 3, and the first hinge 11 and the second hinge 21 extend into the hinge protection decorative strip 3 through the rectangular slot 33. The arrangement of the rectangular slot 33 ensures that the first hinge 11 and the second hinge 21 extend into the hinge protection decorative strip 3, thereby ensuring the normal rotation between the rotating door 2 and the door frame 1.
[0029] In the embodiment, an arc-shaped curved surface is formed on the outer side of the hinge protection decorative strip 3. When the rotating door 2 is rotated, the arc-shaped curved surface on the hinge protection decorative strip 3 can be attached to the side wall of the door frame 1, thereby avoiding the jamming of the hinge protection decorative strip 3 and the door frame 1 during rotation.
[0030] In the embodiment, a mounting structure is arranged between the hinge protection decorative strip 3 and the rotating door 2. The mounting structure comprises a connecting slot 32 formed in the rotating door 2, and a connecting strip 31 fixedly arranged on the hinge protection decorative strip 3 and inserted into the connecting slot 32. In the application, the hinge protection decorative strip 3 and the rotating door 2 are connected by the rear mounting method. Specifically, after the rotating door 2 and the door frame 1 are connected together, the connecting strip 31 on the hinge protection decorative strip 3 is aligned with the connecting slot 32 on the rotating door 2, and then they are connected together by welding or other methods. Meanwhile, in the application, the hinge protection decorative strip 3 and the rotating door 2 are arranged in a split type, which facilitates transportation.
[0031] In the embodiment, a plurality of groups of the first hinge 11 and the second hinge 21 are arranged between the rotating door 2 and the door frame 1. By arranging multiple groups of the first hinge 11 and the second hinge 21 on each side, multiple stress points can be ensured during rotation.
[0032] In the embodiment, a fireproof layer is fixedly arranged on the outer side of the hinge protection decorative strip 3. The arrangement of the fireproof layer can ensure that the door hinge 30 can be normally rotated when a fire safety hazard occurs.
[0033] In the embodiment, the fireproof layer is made of silicate and fiber reinforced material. The fireproof layer is processed under high temperature and high pressure, and has excellent fireproof and heat insulation performance.
[0034] Specific implementation process: composed of door frame 1, rotating door 2 and connecting shaft protection device. The first hinge 11 is fixedly arranged on the door frame 1, and the second hinge 21 is fixedly connected on the rotating door 2. The through slot is arranged on the two hinges, and the door leaf shaft 30 is rotatably arranged in the through slot, so as to realize the flexible rotation between the rotating door 2 and the door frame 1.
[0035] In order to further enhance the protection performance of the door leaf shaft 30, the shaft protection decorative strip 3 is particularly added in the device. This decorative strip is not only beautiful and elegant, but more importantly, it can tightly wrap the door leaf shaft 30, effectively reducing the direct influence of external factors on the shaft. At the same time, the rectangular slot 33 is cleverly arranged on the shaft protection decorative strip 3, so that the first hinge 11 and the second hinge 21 can smoothly extend into the decorative strip, ensuring that the connection between the rotating door 2 and the door frame 1 will not be affected by the addition of the decorative strip, and still can maintain smooth rotation.
[0036] In addition, the outer side of the shaft protection decorative strip 3 is also designed with an arc curved surface. This design makes the decorative strip closely fit the side wall of the door frame 1 when adjusting the rotating door, effectively avoiding the jamming phenomenon caused by rotation, and further improving the rotation smoothness of the door leaf.
[0037] In terms of installation, the shaft protection decorative strip 3 and the rotating door adopt an innovative installation structure. Specifically, a connecting slot 32 is arranged on the rotating door, and a connecting strip 31 matched with the connecting slot 32 is fixedly arranged on the shaft protection decorative strip 3. This design enables the shaft protection decorative strip 3 to be installed after the connection between the rotating door 2 and the door frame 1 is completed, greatly simplifying the installation process. At the same time, the split type setting also facilitates the transportation and storage of the device.
[0038] In order to further improve the fireproof performance of the device, a fireproof layer is particularly fixedly arranged on the outer side of the shaft protection decorative strip 3. This fireproof layer is made of silicate and fiber reinforced material, and is processed by high temperature and high pressure, having excellent fireproof and heat insulation performance. In extreme cases such as fire, the fireproof layer can effectively insulate heat transfer and delay the spread of fire, providing valuable time for personnel evacuation and fire extinguishing work.
[0039] The embodiments of the specific implementation mode are the preferred embodiments of the application, but not limited to the protection scope of the application, so that: any equivalent changes made according to the structure, shape, principle of the application should be covered in the protection scope of the application.
Claims
1. Door leaf pivot protection device, characterized in that The utility model relates to a door frame (1), rotating door (2) and pivot protection device between door frame (1) and rotating door (2), first hinge (11) is fixedly arranged on door frame (1), second hinge (21) is fixedly connected on rotating door (2), all are set up in first hinge (11) and second hinge (21) and are opened with through slot, all are rotatably arranged with door leaf pivot (30) in through slot, pivot protection device includes pivot protection decorative strip (3) for wrapping door leaf pivot (30).
2. The door leaf pivot protection device according to claim 1, characterized in that The rectangular slot (33) is opened in the pivot protection decorative strip (3), and the first hinge (11) and the second hinge (21) extend into the pivot protection decorative strip (3) through the rectangular slot (33).
3. The door leaf pivot protection device according to claim 2, characterized in that An arc curved surface is opened on the outer side of the pivot protection decorative strip (3).
4. The door leaf pivot protection device according to claim 1, characterized in that The mounting structure is arranged between the pivot protection decorative strip (3) and the rotating door (2).
5. The door leaf pivot protection device according to claim 4, characterized in that The mounting structure includes a connecting groove (32) opened on the rotating door (2), and the pivot protection decorative strip (3) is fixedly provided with a connecting strip (31) inserted with the connecting groove (32).
6. The door leaf pivot protection device according to claim 1, characterized in that The first hinge (11) and the second hinge (21) are respectively provided with a plurality of groups between the rotating door (2) and the door frame (1).
7. The door leaf pivot protection device according to claim 5, characterized in that A fireproof layer is fixedly arranged on the outer side of the pivot protection decorative strip (3).
8. The door leaf pivot protection device according to claim 7, characterized in that The fireproof layer is made of silicate and fiber reinforced material.