Multi-angle adjustable metal hinge

By designing a multi-angle adjustable metal hinge, utilizing a combination structure of a rotating ring and a movable cylinder, along with an automatic lubrication system, the problems of friction noise and wear in metal hinges have been solved, achieving flexible adjustment and a long service life.

CN224064140UActive Publication Date: 2026-03-31WUHAN HONGCHEN IOT TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-17
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

Existing metal hinges are prone to friction noise after prolonged use, are difficult to lubricate and are cumbersome to operate, and do not rotate smoothly, resulting in increased wear and shortened service life.

Method used

A multi-angle adjustable metal hinge was designed. Multi-angle rotation is achieved by rotating a ring and a movable cylinder connected to the hinge pin. An automatic lubrication structure is formed by a support rod, a push-slide component and a telescopic spring inside the fixed cylinder, and continuous lubrication is achieved by using a lubrication port.

Benefits of technology

It achieves multi-angle adjustment, reduces friction noise and wear, lowers maintenance difficulty and cost, and extends service life.

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Abstract

The utility model discloses a multi-angle adjustable metal hinge, which comprises a hinge pin, the outer surface of the hinge pin is respectively and rotatably connected with two rotating rings and a movable cylinder, the outer surface of the movable cylinder is fixedly connected with a positive hinge, the outer surfaces of the two rotating rings are jointly and fixedly connected with a negative hinge, and the outer surfaces of the two rotating rings are fixedly connected with the negative hinge. The outer surface of the hinge pin is fixedly connected with two fixing cylinders, the inner wall of each fixing cylinder is fixedly connected with a set of supporting round rods, and the outer surface of each set of supporting round rods is slidably connected with a pushing and sliding piece. According to the device, an automatic lubricating structure is formed by the supporting round rod in the fixed cylinder, the pushing and sliding piece and the telescopic spring, after lubricating oil is injected from the oil injection port, under the action of the telescopic spring, the pushing and sliding piece continuously conveys the lubricating oil to the rotating part of the hinge through the main oil flow port and the auxiliary oil flow port, it is guaranteed that the hinge is always well lubricated in the rotating process, and the service life of the hinge is prolonged. And meanwhile, the hinge does not need to be frequently disassembled for lubrication, and the service life of the hinge is prolonged.
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Description

TECHNICAL FIELD

[0001] The utility model relates to hardware fitting technical field especially a metal hinge of multi -angle adjustment. BACKGROUND

[0002] Hardware fitting refers to machine parts or components made of hardware, and some small hardware products, which can be used alone or as an aid, such as hardware tools, hardware components, etc. Hardware hinge is commonly known as hinge. Hinge is a kind of home decoration material, which is mainly installed on doors and windows, while hinge is mostly installed on cabinets. Hinge can be divided into stainless steel hinge and metal hinge according to material.

[0003] In many application scenarios involving component connection and rotation, metal hinges play a crucial role. However, the commonly available metal hinges on the market have many limitations, making it difficult to meet the increasingly diverse usage needs. After a long time of use, the metal will produce friction, making a rubbing sound, and lacking effective lubrication structure, which usually needs to be disassembled regularly for lubrication treatment. The operation is cumbersome and the hinge components are easily damaged. Moreover, during use, the hinge rotation is not smooth, increasing wear and tear and shortening the service life. To solve the above problems, we propose a metal hinge with multi-angle adjustment. SUMMARY

[0004] The utility model aims at providing a metal hinge with multi-angle adjustment to solve the problems raised in the background.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A metal hinge with multi-angle adjustment, comprising a hinge pin, the outer surface of the hinge pin is rotatably connected with two rotating rings and a movable cylinder, the outer surface of the movable cylinder is fixedly connected with a male hinge, the outer surfaces of the two rotating rings are fixedly connected with a female hinge, the outer surface of the hinge pin is fixedly connected with two fixed cylinders, the inner wall of each fixed cylinder is fixedly connected with a group of supporting round rods, the outer surface of each group of supporting round rods is slidably connected with a push slide, the outer surface of each push slide is fixedly connected with a plurality of extension springs, the end of each extension spring away from the push slide is fixedly connected with the inner wall of the fixed cylinder, the side surface of each fixed cylinder close to the movable cylinder is provided with a main oil outlet, and the upper surface of the movable cylinder and the bottom surface of the movable cylinder are provided with a vice oil outlet.

[0007] In further embodiments, the outer surface of the female hinge and the outer surface of the male hinge are provided with a plurality of reserved openings.

[0008] In further embodiments, the outer surface of the hinge pin is sleeved with two round bushings, one of which is located below the movable cylinder, and the other is located above the movable cylinder.

[0009] In further embodiments, the outer surface of the male hinge is pasted with a type sticker.

[0010] In further embodiments, the top end of the hinge pin and the bottom end of the hinge pin are fixedly connected with connecting rods, and the outer surface of each connecting rod is provided with a locking nut.

[0011] In further embodiments, the outer surface of each fixed cylinder is provided with an oil injection port, and the inner portion of each oil injection port is provided with a round plug.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] Firstly, the two rotating rings and the movable cylinder rotatingly connected on the hinge pin enable the female hinge and the male hinge to realize relative rotation at multiple angles, the two rotating rings can drive the female hinge to rotate in a plane, and the movable cylinder can drive the male hinge to rotate in other directions, thereby breaking through the limitation that the traditional hinge can only rotate in a single plane and meeting the demand for multi-angle adjustment of the connecting component under complex working conditions.

[0014] Secondly, the supporting round rod, the push slide and the extension spring in the fixed cylinder constitute an automatic lubricating structure, after the lubricating oil is injected from the oil injection port, the push slide continuously delivers the lubricating oil to the rotating position of the hinge through the main oil outlet and the auxiliary oil outlet under the action of the extension spring, thereby ensuring that the hinge is always well lubricated during rotation, reducing wear and tear, simultaneously, without the need for frequent disassembly and lubrication of the hinge, the maintenance cost and difficulty are greatly reduced, and the service life of the hinge is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a front view of the metal hinge capable of multi-angle adjustment.

[0016] Figure 2 It is a top view of the metal hinge capable of multi-angle adjustment.

[0017] Figure 3 It is a schematic view of the hinge pin and the movable cylinder in the metal hinge capable of multi-angle adjustment.

[0018] Figure 4 It is a schematic view of the internal structure of the fixed cylinder in the metal hinge capable of multi-angle adjustment.

[0019] Figure 5 It is a schematic view of the internal structure of the fixed cylinder in the metal hinge capable of multi-angle adjustment.

[0020] In the figure: 1, hinge pin; 2, connecting rod; 3, locking nut; 4, movable cylinder; 5, male hinge; 6, rotating ring; 7, female hinge; 8, reserved port; 9, model sticker; 10, fixed cylinder; 11, oil injection port; 12, round plug; 13, round bushing; 14, supporting round rod; 15, push slide; 16, telescopic spring; 17, main oil flow port; 18, auxiliary oil flow port. DETAILED DESCRIPTION

[0021] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second" and the like can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specified.

[0022] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0023] The technical solutions in the embodiments of the present application will be described clearly and completely in the following description of the embodiments of the present application, obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary skilled in the art without creative labor are within the scope of protection of the present application.

[0024] Please refer to Figures 1-5The utility model discloses a kind of multi-angle adjustable metal hinges, including hinge pin 1, the outer surface of hinge pin 1 is respectively rotationally connected with two rotating rings 6 and movable cylinder 4, the outer surface of movable cylinder 4 is fixedly connected with male hinge 5, the outer surface of two rotating rings 6 is commonly fixedly connected with female hinge 7, the outer surface of hinge pin 1 is fixedly connected with two fixed cylinders 10, the inner wall of each fixed cylinder 10 is fixedly connected with a group of support round rods 14, the outer surface of each group of support round rods 14 is slidably connected with push slide 15, the outer surface of each push slide 15 is fixedly connected with multiple extension springs 16, the end of each extension spring 16 away from push slide 15 is fixedly connected with the inner wall of fixed cylinder 10, the side of each fixed cylinder 10 close to movable cylinder 4 is equipped with main oil outlet 17, the upper surface of movable cylinder 4 and the bottom surface of movable cylinder 4 are equipped with vice oil outlet 18, by two rotating rings 6 and movable cylinder 4 rotationally connected on hinge pin 1, so that female hinge 7 and male hinge 5 can be realized multi-angle relative rotation, two rotating rings 6 can drive female hinge 7 to rotate in a plane, movable cylinder 4 can drive male hinge 5 to rotate in other directions, break through the limitation that traditional hinge can only rotate in single plane, can satisfy the demand of multi-angle adjustment of connecting component under complex working condition.

[0025] The outer surface of female hinge 7 and the outer surface of male hinge 5 are equipped with multiple reserved openings 8, and the multiple reserved openings 8 facilitate the use of bolts and other connecting members to install the hinge on various devices or structures, improving the flexibility and versatility of installation, the outer surface of hinge pin 1 is sleeved with two round bushings 13, one of the round bushings 13 is located below movable cylinder 4, and the other round bushing 13 is located above movable cylinder 4, the setting of the round bushing 13 not only reduces the friction between movable cylinder 4 and hinge pin 1, but also further enhances the stability of the connecting part, so that the hinge can still maintain good working condition when frequently opening and closing and bearing large external force.

[0026] The outer surface of male hinge 5 is pasted with a model sticker 9, which facilitates users to quickly identify the model and specifications of the hinge, the top end of hinge pin 1 and the bottom end of hinge pin 1 are fixedly connected with connecting rods 2, the outer surface of each connecting rod 2 is provided with a locking nut 3, which can be tightened during installation to enhance the connection stability between the hinge pin 1 and the connecting part, the outer surface of each fixed cylinder 10 is equipped with an oil inlet 11, and the inside of each oil inlet 11 is provided with a circular plug 12, which facilitates the sealing of the oil inlet 11 after injecting lubricating oil, to improve the convenience of use.

[0027] The working principle of the utility model is:

[0028] In use, the hinge is installed to the use position through the reserved port 8 on the female hinge 7 and the male hinge 5, the appropriate amount of lubricating oil is added into the fixed cylinder 10 through the oil injection port 11, the circular plug 12 is used for sealing, the two rotating rings 6 rotatingly connected on the hinge pin 1 and the movable cylinder 4 are used, so that the relative rotation of the female hinge 7 and the male hinge 5 in multiple angles can be realized, the two rotating rings 6 can drive the female hinge 7 to rotate in a plane, and the movable cylinder 4 can drive the male hinge 5 to rotate in other directions, the multi-angle adjustment is realized, and in the use process, with the rotation of the male hinge 5 and the female hinge 7, when the main oil port 17 and the auxiliary oil port 18 are located at the same position, the telescopic spring 16 is in the compressed state after adding the lubricating oil, under the elastic action of the telescopic spring 16, the push slide 15 can be pushed to slide up and down along the supporting circular rod 14, the lubricating oil is continuously delivered to the rotating position of the hinge through the main oil port 17 and the auxiliary oil port 18 by the movement of the push slide 15, so that the normal use is ensured.

[0029] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be realized in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0030] In addition, it should be understood that, although the present application is described in the specification according to the embodiments, not every embodiment contains only one independent technical scheme, and the description manner of the specification is only for the sake of clarity, and those skilled in the art should regard the specification as a whole, and the technical schemes in each embodiment can also be combined appropriately to form other embodiments which can be understood by those skilled in the art.

Claims

1. A multi-angle adjustable metal hinge, characterized by: The utility model relates to a hinge pin (1), the outer surface of hinge pin (1) is rotatably connected with two rotation rings (6) and movable cylinder (4) respectively, the outer surface of movable cylinder (4) is fixedly connected with male hinge (5), the outer surface of two rotation rings (6) is commonly fixedly connected with female hinge (7), the outer surface of hinge pin (1) is fixedly connected with two fixed cylinders (10), the inner wall of each fixed cylinder (10) is fixedly connected with a group of support round pole (14), the outer surface of each group of support round pole (14) is slidably connected with push slide piece (15), the outer surface of each push slide piece (15) is fixedly connected with a plurality of telescopic springs (16), and the inner wall of fixed cylinder (10) is fixedly connected with telescopic spring (16) away from push slide piece (15) one end, and the side face of each fixed cylinder (10) near movable cylinder (4) is provided with main oil outlet (17), and the upper surface of movable cylinder (4) and the bottom surface of movable cylinder (4) are provided with vice oil outlet (18).

2. A multi-angle adjustable metal hinge according to claim 1, characterized in that: The outer surface of female hinge (7) and the outer surface of male hinge (5) are provided with a plurality of reservation openings (8).

3. A multi-angle adjustable metal hinge according to claim 1, wherein: The outer surface of hinge pin (1) is sleeved with two round bushings (13), one of the round bushings (13) is located below movable cylinder (4), and the other round bushing (13) is located above movable cylinder (4).

4. A multi-angle adjustable metal hinge according to claim 1, wherein: The outer surface of male hinge (5) is attached with a model sticker (9).

5. A multi-angle adjustable metal hinge according to claim 1, wherein: The top end of hinge pin (1) and the bottom end of hinge pin (1) are fixedly connected with connecting rods (2), and the outer surface of each connecting rod (2) is provided with a locking nut (3).

6. A multi-angle adjustable metal hinge according to claim 1, wherein: The outer surface of each fixed cylinder (10) is provided with an oil inlet (11), and the inside of each oil inlet (11) is provided with a circular plug (12).