Detachable aluminum profile door and window hinge

By introducing oil-retaining cotton and cotton strip structures into the hinge, the problem of insufficient self-lubrication of the hinge is solved, achieving efficient utilization of lubricating oil and reducing frictional noise, thus enhancing the performance of the hinge.

CN224149376UActive Publication Date: 2026-04-21WENZHOU JULONG ALUMINUM CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WENZHOU JULONG ALUMINUM CO LTD
Filing Date
2025-05-13
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

Existing hinges lack self-lubricating function, resulting in excessive friction and abnormal noise on the pivot after prolonged use. Insufficient lubrication leads to waste.

Method used

Design a detachable aluminum profile door and window hinge, which adopts an oil-retaining cotton and cotton-draining strip structure. The lubricating oil is applied to the inner wall of the sleeve by a rotating shaft, and combined with a vibration damping pad to absorb vibration and prevent the screws from loosening.

Benefits of technology

This allows for the slow use of lubricating oil, improves the effective utilization rate of lubricating oil, reduces friction noise, and prevents screws from loosening.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a detachable aluminum profile door and window hinge which comprises a first connecting piece, a second connecting piece, a rotating shaft, sleeves and a plug, the first connecting piece is fixed with the rotating shaft, the two sleeves are fixed on the side face of the second connecting piece, the rotating shaft is connected in the two sleeves in a rotating mode, a cavity is formed in the rotating shaft, oil storage cotton is installed in the cavity, and the plug is arranged in the cavity. The upper half section and the lower half section of the oil storage cotton are each connected with two guide-out cotton strips, the guide-out cotton strips make contact with the inner wall of the sleeve, the oil storage cotton is filled with lubricating oil, and the plug is detachably installed at the top of the rotating shaft through threads. The lubricating device has a self-lubricating function, lubricating oil can be slowly used, the effective utilization rate of the lubricating oil is increased, and the using effect is better.
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Description

Technical Field

[0001] This utility model relates to the field of hinge technology, and in particular to a detachable aluminum profile door and window hinge. Background Technology

[0002] A hinge, formally known as a hinge, is a component used to connect two parts of an object and allow them to move. It is mostly installed on doors, windows, boxes, and cabinets.

[0003] Existing hinges lack self-lubricating properties, leading to significant friction and noise on the pivots after prolonged use. Manual lubrication involves adding large amounts of lubricant at once, with most dripping onto the ground due to gravity, resulting in waste. Therefore, there is an urgent need to develop a self-lubricating, slowly applied, and more efficient detachable aluminum profile door and window hinge to overcome current shortcomings and meet current needs. Utility Model Content

[0004] The purpose of this utility model is to provide a detachable aluminum profile door and window hinge to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A detachable aluminum profile door and window hinge includes a first connecting piece, a second connecting piece, a pivot, a sleeve, and a plug. The first connecting piece is fixed to the pivot. Two sleeves are fixed to the side of the second connecting piece. The pivot is rotatably connected to the two sleeves. A cavity is provided inside the pivot. Oil-collecting cotton is installed in the cavity. Two guide cotton strips are connected to the upper and lower halves of the oil-collecting cotton. The guide cotton strips are in contact with the inner wall of the sleeve. The oil-collecting cotton is filled with lubricating oil. The plug is detachably installed on the top of the pivot by threads.

[0007] Preferably, the first connecting piece, the second connecting piece, the rotating shaft, the sleeve, and the plug are all made of aluminum.

[0008] Preferably, the first connecting piece and the second connecting piece are provided with two mounting holes, which are used for screws to pass through.

[0009] Preferably, two vibration isolation pads are fixed on the back of both the first connecting piece and the second connecting piece.

[0010] The beneficial effects of this utility model are as follows: This detachable aluminum profile door and window hinge, in use, fixes the first connecting piece to the door or window with screws, and the second connecting piece to the door or window frame with screws. When the door or window is rotated, the first connecting piece rotates, which in turn drives the rotating shaft to rotate within the sleeve. The rotating shaft then drives the oil-collecting cotton and the guide cotton strip to rotate, allowing the guide cotton strip to apply lubricating oil to the inner wall of the sleeve, reducing friction-induced noise. After a period of use, the plug can be unscrewed, and lubricating oil can be added to the oil-collecting cotton. Furthermore, once the first and second connecting pieces are fixed, the vibration damping pad can absorb the vibration generated by opening and closing the door or window, preventing the screws from loosening. In summary, this utility model has a self-lubricating function, allowing for slow application of lubricating oil, improving the effective utilization rate of the lubricating oil, and resulting in better performance. Attached Figure Description

[0011] Figure 1 This is a front structural diagram of the present invention.

[0012] Figure 2 This is a schematic diagram of the back structure of this utility model.

[0013] Figure 3 This is an exploded view of the present invention.

[0014] Figure 4 This is an internal sectional view of the present invention.

[0015] Figure 5 This utility model Figure 4 A partial view at point A in the middle.

[0016] Legend:

[0017] 1. First connecting piece; 2. Second connecting piece; 3. Rotating shaft; 301. Cavity; 4. Sleeve; 5. Plug; 6. Mounting hole; 7. Vibration isolation pad; 8. Oil storage cotton; 801. Outlet cotton strip. Detailed Implementation

[0018] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0019] Specific implementation examples are given below.

[0020] See Figures 1-5In this embodiment of the utility model, a detachable aluminum profile door and window hinge includes a first connecting piece 1, a second connecting piece 2, a rotating shaft 3, a sleeve 4, and a plug 5. The first connecting piece 1, the second connecting piece 2, the rotating shaft 3, the sleeve 4, and the plug 5 are all made of aluminum. The first connecting piece 1 and the second connecting piece 2 are provided with two mounting holes 6 for screws to pass through. The first connecting piece 1 is fixed to the rotating shaft 3. Two sleeves 4 are fixed to the side of the second connecting piece 2. The rotating shaft 3 is rotatably connected to the two sleeves 4. A cavity 301 is provided inside the rotating shaft 3. An oil-retaining cotton 8 is installed in the cavity 301. Two guide cotton strips 801 are connected to the upper and lower halves of the oil-retaining cotton 8. The guide cotton strips 801 are in contact with the inner wall of the sleeve 4. The oil-retaining cotton 8 is filled with lubricating oil. The plug 5 is detachably installed on the top of the rotating shaft 3 by means of threads.

[0021] Two vibration isolation pads 7 are fixed on the back of the first connecting piece 1 and the second connecting piece 2. After the first connecting piece 1 and the second connecting piece 2 are installed, the vibration isolation pads 7 can absorb the vibration to prevent the screws from loosening.

[0022] Working principle: This detachable aluminum profile door and window hinge is used by fixing the first connecting piece 1 to the door or window with screws, and the second connecting piece 2 to the door or window frame with screws. When the door or window is rotated, the first connecting piece 1 rotates, which in turn drives the rotating shaft 3 to rotate inside the sleeve 4. The rotating shaft 3 drives the oil-collecting cotton 8 and the guide cotton strip 801 to rotate, so that the guide cotton strip 801 applies lubricating oil to the inner wall of the sleeve 4 to reduce abnormal noise caused by friction. After a period of use, the plug 5 is unscrewed and lubricating oil is added to the oil-collecting cotton 8. In addition, after the first connecting piece 1 and the second connecting piece 2 are fixed, the vibration damping pad 7 can absorb the vibration generated by the opening and closing of the door and window to prevent the screws from loosening.

[0023] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A detachable aluminum profile door and window hinge, characterized in that, The device includes a first connecting piece (1), a second connecting piece (2), a rotating shaft (3), a sleeve (4), and a plug (5). The first connecting piece (1) is fixed to the rotating shaft (3). Two sleeves (4) are fixed to the side of the second connecting piece (2). The rotating shaft (3) is rotatably connected to the two sleeves (4). A cavity (301) is provided inside the rotating shaft (3). An oil storage cotton (8) is installed in the cavity (301). Two guide cotton strips (801) are connected to the upper and lower halves of the oil storage cotton (8). The guide cotton strips (801) are in contact with the inner wall of the sleeve (4). The oil storage cotton (8) is filled with lubricating oil. The plug (5) is detachably installed on the top of the rotating shaft (3) by means of threads.

2. The detachable hinge for aluminum door and window frame according to claim 1, wherein, The first connecting piece (1), the second connecting piece (2), the rotating shaft (3), the sleeve (4) and the plug (5) are all made of aluminum.

3. The detachable hinge for aluminum door and window frame according to claim 1, wherein, The first connecting piece (1) and the second connecting piece (2) are provided with two mounting holes (6), which are used for screws to pass through.

4. The detachable hinge for aluminum door and window frame according to claim 1, wherein, Two vibration isolation pads (7) are fixed on the back of the first connecting piece (1) and the second connecting piece (2).