A new type of hinge structure of door frame and door leaf

Abstract

The utility model discloses a novel pivot structure of door frame and door leaf belongs to door frame pivot technical field, including the axle core, the surface of axle core is equipped with a bush, the surface of axle core and be located the top and bottom of a bush are equipped with the bush of no.

Description

Technical Field

[0001] This utility model belongs to the field of door frame pivot technology, specifically relating to a novel pivot structure between a door frame and a door leaf. Background Technology

[0002] A door frame pivot is a device that connects the door leaf and the door frame. It is usually called a door hinge, pivot, or pivot. Its main function is to support and fix the door leaf so that it can rotate around the pivot, thereby realizing the opening and closing action of the door.

[0003] In order to reduce wear, existing hinges usually inject lubricating oil into the joints of the hinge during long-term use. However, due to the small gaps at the joints, the injected lubricating oil is very easy to drip down the surface of the hinge and cannot penetrate into the joints. This not only wastes the lubricating oil but also reduces the lubrication effect. Therefore, we provide a new hinge structure for door frames and door panels. Utility Model Content

[0004] The purpose of this utility model is to provide a novel hinge structure for a door frame and a door leaf, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a novel pivot structure for a door frame and a door leaf, comprising a shaft core, a first bushing sleeve fitted on the surface of the shaft core, a second bushing sleeve fitted on the surface of the shaft core at both the top and bottom of the first bushing sleeve, an oil inlet opening at the top of the surface of the shaft core, a guide hole opening on the surface of the shaft core, and a positioning nut threadedly connected to the top and bottom of the surface of the shaft core at one side of the second bushing sleeve.

[0006] Using the above method, when it is necessary to inject lubricating oil into the connection between the No. 1 and No. 2 bushings, the lubricating oil is injected into the inner cavity of the shaft core through the oil injection port. During this process, the lubricating oil will overflow through the guide hole on the surface of the shaft core. The overflowing lubricating oil will always flow on the inner wall of the No. 1 and No. 2 bushings. When the lubricating oil flows to the connection between the No. 1 and No. 2 bushings, the oiling operation is completed. The operation is simple and convenient for users, preventing the waste of lubricating oil.

[0007] In a preferred embodiment of a novel pivot structure for a door frame and door leaf, the surface of the pivot core is provided with external threads, and the inner wall of the positioning nut is provided with internal threads.

[0008] By adopting the above solution and utilizing the compatibility of external and internal threads, the positioning nut can be quickly installed on the shaft core, greatly improving the installation efficiency.

[0009] In a preferred embodiment of a novel pivot structure for a door frame and a door leaf, the first and second pivot sleeves have the same shape, and their connecting ends are compatible.

[0010] In a preferred embodiment of a novel hinge structure for a door frame and door leaf, the surfaces of the first and second bushings are coated with an anti-rust layer, which includes a mica iron oxide anti-rust paint layer and a chlorinated polyethylene anti-rust paint layer.

[0011] By adopting the above solution, an anti-rust layer is applied to the surface of the No. 1 and No. 2 bushings, forming a protective layer that prevents oxygen and moisture from directly contacting the metal parts of the shaft, thereby reducing the possibility of rusting and greatly improving the service life of the No. 1 and No. 2 bushings.

[0012] In a preferred embodiment of a novel hinge structure for a door frame and door leaf, both the first bushing and the core are provided with hinges, and the hinges are provided with through holes.

[0013] By adopting the above solution, the hinges provide support and fixation, ensuring the door remains stable during opening and closing.

[0014] In a preferred embodiment of a novel pivot structure for a door frame and door leaf, the inner cavity of the first bushing is provided with a cavity, and the size of the cavity is adapted to the size of the shaft core.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. This utility model injects lubricating oil into the inner cavity of the shaft core through the oil injection port. During this process, the lubricating oil overflows through the guide hole on the surface of the shaft core. The overflowing lubricating oil will always flow on the inner wall of the first and second bushings. When the lubricating oil flows to the connection between the first and second bushings, the oiling operation is realized. The operation is simple and convenient for users, and it prevents the waste of lubricating oil.

[0017] 2. This utility model applies an anti-rust layer to the surface of the No. 1 and No. 2 bushings, forming a protective layer that prevents oxygen and moisture from directly contacting the metal parts of the shaft, thereby reducing the possibility of rusting and greatly improving the service life of the No. 1 and No. 2 bushings. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is an enlarged view of point A in this utility model;

[0020] Figure 3 This is a cross-sectional view of the shaft core of this utility model.

[0021] In the diagram: 1. Shaft core; 2. No. 1 bushing; 3. No. 2 bushing; 4. Oil inlet; 5. Guide hole; 6. Locating nut. Detailed Implementation

[0022] Please see Figure 1-3 A novel hinge structure for a door frame and door leaf, including a core 1, see [link / details]. Figure 2 As shown, the surface of the shaft core 1 is provided with external threads, and the inner wall of the positioning nut 6 is provided with internal threads. Utilizing the compatibility of the external and internal threads, the positioning nut 6 can be quickly installed on the shaft core 1, greatly improving installation efficiency. A first bushing 2 is fitted onto the surface of the shaft core 1. Second bushings 3 are fitted onto the surface of the shaft core 1, both at the top and bottom of the first bushing 2. An oil inlet 4 is opened at the top of the surface of the shaft core 1, and a guide hole 5 is opened on the surface of the shaft core 1. Positioning nuts 6 are threadedly connected to the top and bottom of the surface of the shaft core 1, on one side of the second bushing 3. The surfaces of the first bushing 2 and the second bushing 3 are coated with an anti-rust layer, which includes a mica iron oxide anti-rust paint layer and a chlorinated polyethylene anti-rust paint layer. The anti-rust layer is applied to the first bushing 2... The surfaces of bushing 2 and bushing 3 are coated with a protective layer to prevent oxygen and moisture from directly contacting the metal parts of the shaft, thus reducing the possibility of rust and greatly improving the service life of bushing 2 and bushing 3. When lubricating oil needs to be injected into the connection between bushing 2 and bushing 3, the lubricating oil is injected into the inner cavity of shaft core 1 through the oil injection port 4. During this process, the lubricating oil will overflow through the guide hole 5 on the surface of shaft core 1. The overflowing lubricating oil will always flow on the inner wall of bushing 2 and bushing 3. When the lubricating oil flows to the connection between bushing 2 and bushing 3, the oiling operation is completed. The operation is simple and convenient for users to operate, preventing the waste of lubricating oil.

[0023] See Figure 1 As shown, bushing 2 and bushing 3 have the same shape, and their connecting ends are compatible. Figure 1 As shown, both the first bushing 2 and the shaft core 1 are equipped with hinges, and the hinges have through holes. The hinges provide support and fixation, ensuring the door remains stable during opening and closing. Figure 3 As shown, the inner cavity of the first bushing 2 is provided with a cavity, and the size of the cavity is adapted to the size of the shaft core 1.

[0024] When in use, firstly, when it is necessary to inject lubricating oil into the connection between No. 1 bushing 2 and No. 2 bushing 3, the lubricating oil is injected into the inner cavity of the shaft core 1 through the oil injection port 4. During this process, the lubricating oil will overflow through the guide hole 5 on the surface of the shaft core 1. The overflowing lubricating oil will always flow on the inner wall of No. 1 bushing 2 and No. 2 bushing 3. When the lubricating oil flows to the connection between No. 1 bushing 2 and No. 2 bushing 3, the oiling operation is completed. The operation is simple and convenient for users, preventing the waste of lubricating oil. During use, the hinge plays a supporting and fixing role, ensuring that the door remains stable during opening and closing. Finally, the anti-rust layer is coated on the surface of No. 1 bushing 2 and No. 2 bushing 3 to form a protective layer, preventing oxygen and moisture from directly contacting the metal part of the shaft, thereby reducing the possibility of rusting and greatly improving the service life of No. 1 bushing 2 and No. 2 bushing 3.

Claims

1. A novel hinge structure for a door frame and a door leaf, characterized in that: Includes a shaft core (1), on the surface of the shaft core (1) is fitted with a first bushing (2), on the surface of the shaft core (1) and at the top and bottom of the first bushing (2) are fitted with second bushings (3), an oil inlet (4) is opened at the top of the surface of the shaft core (1), a guide hole (5) is opened on the surface of the shaft core (1), and a positioning nut (6) is threadedly connected to the top and bottom of the surface of the shaft core (1) and on one side of the second bushing (3).

2. The novel hinge structure for a door frame and door leaf according to claim 1, characterized in that: The surface of the shaft core (1) is provided with external threads, and the inner wall of the positioning nut (6) is provided with internal threads.

3. The novel hinge structure for a door frame and door leaf according to claim 1, characterized in that: The first bushing (2) and the second bushing (3) have the same shape, and the connecting ends of the first bushing (2) and the second bushing (3) are compatible.

4. The novel hinge structure for a door frame and door leaf according to claim 1, characterized in that: The surfaces of the first bushing (2) and the second bushing (3) are coated with an anti-rust layer, which includes a mica iron oxide anti-rust paint layer and a chlorinated polyethylene anti-rust paint layer.

5. A novel hinge structure for a door frame and door leaf according to claim 1, characterized in that: Both the first bushing (2) and the shaft core (1) are provided with hinges, and the hinges are provided with through holes.

6. The novel hinge structure for a door frame and door leaf according to claim 1, characterized in that: The inner cavity of the first bushing (2) is provided with a cavity, and the size of the cavity is adapted to the size of the shaft core (1).

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