Silent oilless hinge

By incorporating a silent sleeve and an oil-free connecting bearing into the hinge, the problem of insufficient noise reduction despite the simple hinge structure is solved, achieving both quiet operation and smooth rotation while reducing costs.

CN224532483UActive Publication Date: 2026-07-21ZHONGSHAN DIANG METAL PRODUCTS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHONGSHAN DIANG METAL PRODUCTS CO LTD
Filing Date
2025-07-18
Publication Date
2026-07-21

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Abstract

The utility model discloses a mute oil -free hinge, including first hinge body, second hinge body, first connecting shaft, second connecting shaft, first mute sleeve and second mute sleeve. First hinge body one side two ends are provided with first connecting sleeve and second connecting sleeve, and the second hinge body one side is provided with the third connecting sleeve who can set up between first connecting sleeve and second connecting sleeve. First connecting shaft passes through first connecting sleeve from first connecting sleeve one side and sets up in third connecting sleeve, and second connecting shaft passes through second connecting sleeve from second connecting sleeve one side and sets up in third connecting sleeve. First mute sleeve sets up between first connecting sleeve and third connecting sleeve and is set up on first connecting shaft outside, and second mute sleeve sets up between second connecting sleeve and third connecting sleeve and is set up on second connecting shaft outside.
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Description

Technical Field

[0001] This utility model relates to the field of hinges, and in particular to a silent, oil-free hinge. Background Technology

[0002] Existing traditional hinges have relatively simple structures and limited functions, while existing high-end hinges, although powerful in function, are too expensive, making them costly for the average user. Therefore, there is a need for a silent, oil-free hinge with a relatively simple structure that improves noise reduction through structural design, thus meeting customer needs. Utility Model Content

[0003] The main purpose of this utility model is to provide a silent, oil-free hinge with a relatively simple structure that improves noise reduction through structural design, thereby meeting the needs of customers.

[0004] This utility model proposes a silent, oil-free hinge, including a first hinge body, a second hinge body, a first connecting shaft, a second connecting shaft, a first silent sleeve, and a second silent sleeve; The first hinge body has a first connecting sleeve and a second connecting sleeve on both ends of one side, and the second hinge body has a third connecting sleeve that can be disposed between the first connecting sleeve and the second connecting sleeve on one side. The first connecting shaft passes through the first connecting sleeve from one side and is then disposed inside the third connecting sleeve; the second connecting shaft passes through the second connecting sleeve from one side and is then disposed inside the third connecting sleeve. The first silencing sleeve is disposed between the first connecting sleeve and the third connecting sleeve and sleeved on the outside of the first connecting shaft, and the second silencing sleeve is disposed between the second connecting sleeve and the third connecting sleeve and sleeved on the outside of the second connecting shaft.

[0005] Preferably, a first connecting groove and a second connecting groove are respectively provided on both sides of the third connecting sleeve, the end of the first connecting shaft is disposed in the first connecting groove, and the end of the second connecting shaft is disposed in the second connecting groove.

[0006] Preferably, it further includes a first connecting bearing, which is disposed on the outer side of the end of the first connecting shaft within the first connecting groove.

[0007] Preferably, it further includes a second connecting bearing, which is disposed on the outer side of the end of the second connecting shaft within the second connecting groove.

[0008] Preferably, the first hinge body is provided with a plurality of first hinge mounting holes for connecting with the door frame, and the second hinge body is provided with a plurality of second hinge mounting holes for connecting with the door.

[0009] The beneficial effects of this invention's silent, oil-free hinge are: By setting up a first and a second silent sleeve, the noise level of the second hinge body is relatively lower when it rotates compared to the first hinge body, thus meeting the needs of customers.

[0010] By setting a first connecting bearing and a second connecting bearing, both of which are oil-free bearings, the second hinge body can rotate more smoothly than the first hinge body. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of the silent oil-free hinge of this utility model; Figure 2 This is a partial cross-sectional view of the silent, oil-free hinge of this utility model; The following are the labeling elements in the diagram: 1. First hinge body; 2. Second hinge body; 3. First connecting shaft; 4. Second connecting shaft; 5. First silent sleeve; 6. Second silent sleeve; 7. First connecting bearing; 8. Second connecting bearing; 11. First connecting sleeve; 12. Second connecting sleeve; 13. First hinge mounting hole; 21. Third connecting sleeve; 22. First connecting groove; 23. Second connecting groove; 24. Second hinge mounting hole; 111. First connecting sleeve through hole; 121. Second connecting sleeve through hole.

[0012] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0013] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0014] Reference Figure 1 and Figure 2 An embodiment of the silent, oil-free hinge of this utility model is presented: A silent, oil-free hinge includes a first hinge body 1, a second hinge body 2, a first connecting shaft 3, a second connecting shaft 4, a first silent sleeve 5, a second silent sleeve 6, a first connecting bearing 7, and a second connecting bearing 8.

[0015] A first connecting sleeve 11 and a second connecting sleeve 12 are provided at both ends on one side of the first hinge body 1. The first connecting sleeve 11 and the second connecting sleeve 12 are provided with a first connecting sleeve through hole 111 and a second connecting sleeve through hole 121. The first hinge body 1 is provided with a plurality of first hinge mounting holes 13 for connecting with the door frame.

[0016] A third connecting sleeve 21 is provided on one side of the second hinge body 2, which can be disposed between the first connecting sleeve 11 and the second connecting sleeve 12. A first connecting groove 22 and a second connecting groove 23 are respectively provided on both sides of the third connecting sleeve 21. The second hinge body 2 is provided with a plurality of second hinge mounting holes 24 for connecting with the door.

[0017] The first connecting shaft 3 passes through the first connecting sleeve 11 from one side and is then positioned within the first connecting groove 22 of the third connecting sleeve 21. The first connecting shaft 3 is fixedly connected to the first connecting sleeve 11 via a threaded connection. The first connecting bearing 7 is positioned on the outer side of the end of the first connecting shaft 3 within the first connecting groove 22. The first silent sleeve 6 is positioned between the first connecting sleeve 11 and the third connecting sleeve 21 and is fitted onto the outer side of the first connecting shaft 3.

[0018] The second connecting shaft 4 passes through the second connecting sleeve 12 from one side and is then positioned within the second connecting groove 23 of the third connecting sleeve 21. The second connecting shaft 4 is fixedly connected to the second connecting sleeve 12 via a threaded connection. The second connecting bearing 8 is positioned on the outer side of the end of the second connecting shaft 4 within the second connecting groove 23. The second silent sleeve 6 is positioned between the second connecting sleeve 12 and the third connecting sleeve 21 and is fitted onto the outer side of the second connecting shaft 4.

[0019] By setting the first silent sleeve 5 and the second silent sleeve 6, the noise of the second hinge body 2 when rotating relative to the first hinge body 1 can be effectively reduced.

[0020] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the contents of the present utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present utility model.

Claims

1. A silent, oil-free hinge, characterized in that, It includes a first hinge body, a second hinge body, a first connecting shaft, a second connecting shaft, a first silent sleeve, and a second silent sleeve; The first hinge body has a first connecting sleeve and a second connecting sleeve on both ends of one side, and the second hinge body has a third connecting sleeve that can be disposed between the first connecting sleeve and the second connecting sleeve on one side. The first connecting shaft passes through the first connecting sleeve from one side and is then disposed inside the third connecting sleeve; the second connecting shaft passes through the second connecting sleeve from one side and is then disposed inside the third connecting sleeve. The first silencing sleeve is disposed between the first connecting sleeve and the third connecting sleeve and sleeved on the outside of the first connecting shaft, and the second silencing sleeve is disposed between the second connecting sleeve and the third connecting sleeve and sleeved on the outside of the second connecting shaft.

2. The silent, oil-free hinge according to claim 1, characterized in that, The third connecting sleeve is provided with a first connecting groove and a second connecting groove on both sides, the end of the first connecting shaft is disposed in the first connecting groove, and the end of the second connecting shaft is disposed in the second connecting groove.

3. The silent, oil-free hinge according to claim 2, characterized in that, It also includes a first connecting bearing, which is disposed on the outer side of the end of the first connecting shaft within the first connecting groove.

4. The silent, oil-free hinge according to claim 2, characterized in that, It also includes a second connecting bearing, which is disposed on the outer side of the end of the second connecting shaft within the second connecting groove.

5. The silent, oil-free hinge according to claim 1, characterized in that, The first hinge body is provided with a plurality of first hinge mounting holes for connecting with the door frame, and the second hinge body is provided with a plurality of second hinge mounting holes for connecting with the door.