Aluminum alloy hinge

Abstract

The utility model belongs to the technical field of door and window hinges, and discloses an aluminum alloy hinge which comprises a first hinge piece, a second hinge piece and a fixing shaft, connecting sleeves are installed on the side wall of the first hinge piece and the side wall of the second hinge piece, the fixing shaft is installed in the two connecting sleeves in an inserted mode, and a clamping groove is formed in the side wall of the fixing shaft. A clamping groove is formed in the side wall of the fixing shaft, an inserting groove is formed in the side wall of the connecting sleeve on the side wall of the second hinge piece, a positioning pin is installed in the inserting groove in an inserted mode, and the positioning pin can be installed in the clamping groove in an inserted mode. Meanwhile, due to the fact that the positioning pin is arranged in the connecting sleeve, opening and closing of the hinge cannot be interfered in the using process, closing of the device is prevented from being influenced, in addition, an oil inlet hole and an oil outlet hole are further formed in the fixing shaft, a worker can conveniently lubricate the device, and the device is convenient to use. And noise is prevented from being generated when the device is used.

Description

Technical Field

[0001] The utility model relates to the technical field of door and window hinges, in particular to an aluminum alloy hinge. Background Art

[0002] Hinge, also known as hinge, formally known as hinge; often composed of two folding parts, is a component that connects two parts of an object and enables them to move; ordinary hinges are used for cabinet doors, windows, doors, etc.

[0003] In an aluminum alloy hinge structure proposed in application number CN202321935839.5, a limiting portion is provided and inserted into a corresponding slot to keep the second blade in a corresponding position, so that the user can keep the hinge at a certain angle and then limit it when in use;

[0004] However, in the above document, the limiting structure is installed on the page, which results in that the two pages cannot be completely closed together, resulting in poor practicality. Utility Model Content

[0005] The purpose of the present utility model is to provide an aluminum alloy hinge to solve the problem in the above background technology that the limiting structure is installed on the leaf piece, resulting in the two leaf pieces not being able to be completely closed together and having poor practicality.

[0006] To achieve the above object, the present invention provides the following technical solution: an aluminum alloy hinge, comprising a first leaf, a second leaf, and a fixed shaft, wherein the side walls of the first leaf and the second leaf are both installed with connecting sleeves, and the fixed shaft is inserted into the two connecting sleeves;

[0007] A card slot is formed on the side wall of the fixed shaft, and a slot is formed on the side wall of the connecting sleeve on the side wall of the second leaf. A positioning pin is inserted into the slot and installed. The positioning pin can be inserted into the card slot.

[0008] The positioning pin includes a pin body, a positioning block, a spring and a buckle cover. The pin body is inserted and installed in the slot. The inner cavity of the pin body is slidably installed with a positioning block. The positioning block can be inserted and installed in the card slot. The inner wall of the pin body is provided with an internal thread, and the outer side of the buckle cover is provided with an external thread. The buckle cover is screwed into and installed in the pin body through a thread. The spring is placed and installed in the pin body. One end of the spring is in contact with the side wall of the positioning block, and the other end of the spring is in contact with the inner wall of the buckle cover.

[0009] As a preferred embodiment of the present invention, sealing rubber rings are fitted on both upper and lower ends of the connecting sleeve on the side wall of the second sheet, and the two sealing rubber rings are respectively fitted on the connecting sleeve on the side wall of the first sheet.

[0010] As a preferred embodiment of the present invention, the side walls of the first leaf and the second leaf are both provided with mounting holes, positioning screws are inserted into the mounting holes, and the first leaf and the second leaf are respectively mounted on the external window frame and the window body by the positioning screws.

[0011] As a preferred embodiment of the present invention, the first leaf, the second leaf, the fixed shaft and the connecting sleeve are all made of aluminum alloy.

[0012] As a preferred embodiment of the present invention, limit blocks are installed at both upper and lower ends of the fixed shaft, the side wall of the limit block is provided with an oil inlet hole, the oil inlet hole passes through the upper wall of the fixed shaft, the side wall of the fixed shaft is provided with an oil outlet hole, and the oil outlet hole is connected to the oil inlet hole.

[0013] As a preferred embodiment of the present invention, a ball groove is provided at the end of the positioning block, a ball is inserted into the ball groove, and the ball can be inserted into the card slot.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] The device is provided with a positioning pin in its slot and a card slot on the side wall of the fixed shaft, so that the opening angle of the device is fixed through the cooperation between the positioning pin and the card slot. At the same time, because the positioning pin is arranged in the connecting sleeve, it will not interfere with the opening and closing of the hinge during use, avoiding affecting the closing of the device.

[0016] In addition, the device is also provided with an oil inlet hole and an oil outlet hole on the fixed shaft, making it convenient for the staff to lubricate the device and avoiding noise when the device is used. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the patent structure;

[0018] Figure 2 This is a schematic diagram of the cross-sectional structure of the connecting sleeve of this patent;

[0019] Figure 3 for Figure 2 Schematic diagram of the structure at point A in the middle.

[0020] Figure 4 This is a schematic diagram of the fixed shaft cross-section structure of this patent.

[0021] In the figure: 1 first page, 2 second page, 3 fixed shaft, 4 connecting sleeve, 5 card slot, 6 slot, 7 positioning pin, 71 pin body, 72 positioning block, 73 spring, 74 buckle cover, 8 sealing rubber ring, 9 mounting hole, 10 positioning screw, 11 limit block, 12 oil inlet hole, 13 oil outlet hole, 14 ball groove, 15 ball. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] See also Figure 1-4 , the utility model provides a technical solution:

[0024] In this technical solution, an aluminum alloy hinge includes a first leaf 1, a second leaf 2 and a fixed shaft 3. The side walls of the first leaf 1 and the second leaf 2 are both installed with connecting sleeves 4, and the fixed shaft 3 is inserted and installed in the two connecting sleeves 4;

[0025] A slot 5 is formed on the side wall of the fixed shaft 3, and a slot 6 is formed on the side wall of the connecting sleeve 4 on the side wall of the second leaf 2. A positioning pin 7 is inserted into the slot 6, and the positioning pin 7 can be inserted into the slot 5.

[0026] The positioning pin 7 includes a pin body 71, a positioning block 72, a spring 73 and a buckle cover 74. The pin body 71 is inserted into the slot 6. The inner cavity of the pin body 71 is slidably installed with the positioning block 72. The positioning block 72 can be inserted into the card slot 5. The inner wall of the pin body 71 is provided with an internal thread, and the outer side of the buckle cover 74 is provided with an external thread. The buckle cover 74 is screwed into the pin body 71 through the thread. The spring 73 is placed and installed in the pin body 71. One end of the spring 73 is in contact with the side wall of the positioning block 72, and the other end of the spring 73 is in contact with the inner wall of the buckle cover 74.

[0027] In this technical solution, by providing a positioning pin 7 on the side wall of the connecting sleeve 4, the positioning block 72 in the positioning pin 7 cooperates with the card slot 5, so that the opening angle of the first leaf 1 and the second leaf 2 can be fixed without the action of external force. In addition, the positioning pin 7 provided in this article is directly provided on the connecting sleeve 4, so it does not interfere with the opening and closing of the device, thereby avoiding affecting the practicality of the device.

[0028] The fixed shaft 3 proposed in this article is fixed in the connecting sleeve 4 on the side wall of the first leaf 1 through the limit blocks 11 on both sides. When the first leaf 1 and the second leaf 2 are opened, the fixed shaft 3 does not rotate with the rotation of the second leaf 2. At this time, the positioning block 72 of the positioning pin 7 on the connecting sleeve 4 on the second leaf 2 is inserted into the slot 5, and then disengaged from the slot 5 and locked into the next slot 5.

[0029] When the positioning block 72 is inserted into the slot 5 , the opening angles of the first leaf 1 and the second leaf 2 are fixed.

[0030] In some technical solutions, sealing rubber rings 8 are fitted on both upper and lower ends of the connecting sleeve 4 on the side wall of the second leaf 2 , and the two sealing rubber rings 8 are respectively fitted with the connecting sleeve 4 on the side wall of the first leaf 1 .

[0031] In this technical solution, the provision of the sealing rubber ring 8 can seal the gap between the connecting sleeves 4, thereby preventing external dust or impurities from entering the connecting sleeves 4 and affecting the opening and closing of the device.

[0032] In some technical solutions, the side walls of the first leaf 1 and the second leaf 2 are both provided with mounting holes 9, and positioning screws 10 are inserted into the mounting holes 9. The first leaf 1 and the second leaf 2 are respectively mounted on the external window frame and the window body through the positioning screws 10.

[0033] In some technical solutions, the first leaf 1, the second leaf 2, the fixed shaft 3, and the connecting sleeve 4 are all made of aluminum alloy.

[0034] In this technical solution, the aluminum alloy material can prevent the device from rusting and increase the service life of the device.

[0035] In some technical solutions, limit blocks 11 are installed at both ends of the fixed shaft 3, and the side wall of the limit block 11 is provided with an oil inlet hole 12, which passes through the upper wall of the fixed shaft 3, and the side wall of the fixed shaft 3 is provided with an oil outlet hole 13, which is connected to the oil inlet hole 12.

[0036] In this technical solution, when the device needs to be lubricated, lubricating oil can be injected into the oil inlet hole 12, so that the lubricating oil is injected into the connecting sleeve 4 through the oil outlet hole 13, thereby reducing the friction between the connecting sleeve 4 on the second leaf 2 and the fixed shaft 3, thereby avoiding the connecting sleeve 4 on the second leaf 2 from generating noise during rotation.

[0037] In some technical solutions, a ball groove 14 is opened at the end of the positioning block 72, and a ball 15 is inserted and installed in the ball groove 14, and the ball 15 can be inserted and installed in the card slot 5.

[0038] In this technical solution, by providing the ball 15, when the second leaf 2 is rotated, the ball 15 can be smoothly inserted into and removed from the slot 5, thereby avoiding affecting the smoothness of opening and closing of the device.

[0039] Working principle: After the first leaf 1 and the second leaf 2 in the device are mounted on the external window frame and the window body by means of the positioning screws 10, when the staff opens the window, the positioning block 72 in the positioning pin 7 on the connecting sleeve 4 on the second leaf 2 will be inserted into the card slot 5, and then detached from the card slot 5 and inserted into the next card slot 5. When the positioning block 72 is inserted into the card slot 5, the opening angle of the first leaf 1 and the second leaf 2 will be fixed;

[0040] After the device has been used for a period of time, when it needs to be lubricated, lubricating oil can be injected into the oil inlet hole 12, so that the lubricating oil is injected into the connecting sleeve 4 through the oil outlet hole 13, thereby reducing the friction between the connecting sleeve 4 on the second leaf 2 and the fixed shaft 3, thereby avoiding noise generated by the connecting sleeve 4 on the second leaf 2 during rotation.

[0041] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0042] While the present invention has been described above with reference to exemplary embodiments, various modifications may be made and equivalent components may be substituted without departing from the scope of the present invention. In particular, as long as no structural conflicts exist, the various features of the disclosed embodiments may be combined with one another in any manner. The omission of an exhaustive description of these combinations in this specification is solely for the sake of space and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions within the scope of the claims.

Claims

1. An aluminum alloy hinge, comprising a first leaf (1), a second leaf (2) and a fixed shaft (3), characterized in that: The side walls of the first leaf (1) and the second leaf (2) are both installed with connecting sleeves (4), and the fixed shaft (3) is inserted and installed in the two connecting sleeves (4); A slot (5) is provided on the side wall of the fixed shaft (3), and a slot (6) is provided on the side wall of the connecting sleeve (4) on the side wall of the second leaf (2). A positioning pin (7) is inserted into and installed in the slot (6), and the positioning pin (7) can be inserted and installed in the slot (5); The positioning pin (7) comprises a pin body (71), a positioning block (72), a spring (73) and a buckle cover (74); the pin body (71) is inserted and installed in the slot (6); the inner cavity of the pin body (71) is slidably installed with a positioning block (72); the positioning block (72) can be inserted and installed in the card slot (5); the inner wall of the pin body (71) is provided with an internal thread; the outer side of the buckle cover (74) is provided with an external thread; the buckle cover (74) is screwed into the pin body (71) by threading; the spring (73) is placed and installed in the pin body (71); one end of the spring (73) is in contact with the side wall of the positioning block (72); and the other end of the spring (73) is in contact with the inner wall of the buckle cover (74).

2. The aluminum alloy hinge according to claim 1, characterized in that: Sealing rubber rings (8) are fitted on both upper and lower ends of the connecting sleeve (4) on the side wall of the second leaf (2), and the two sealing rubber rings (8) are respectively fitted on the connecting sleeve (4) on the side wall of the first leaf (1).

3. The aluminum alloy hinge according to claim 2, characterized in that: The side walls of the first leaf (1) and the second leaf (2) are both provided with mounting holes (9), positioning screws (10) are inserted and installed in the mounting holes (9), and the first leaf (1) and the second leaf (2) are respectively mounted on the external window frame and the window body through the positioning screws (10).

4. The aluminum alloy hinge according to claim 1, characterized in that: The first leaf (1), the second leaf (2), the fixed shaft (3), and the connecting sleeve (4) are all made of aluminum alloy.

5. The aluminum alloy hinge according to claim 1, characterized in that: Limiting blocks (11) are installed at both upper and lower ends of the fixed shaft (3); an oil inlet hole (12) is provided on the side wall of the limiting block (11); the oil inlet hole (12) passes through the upper wall of the fixed shaft (3); an oil outlet hole (13) is provided on the side wall of the fixed shaft (3); the oil outlet hole (13) is communicated with the oil inlet hole (12).

6. The aluminum alloy hinge according to claim 1, characterized in that: A ball groove (14) is provided at the end of the positioning block (72), a ball (15) is inserted and installed in the ball groove (14), and the ball (15) can be inserted and installed in the clamping groove (5).

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