Door and window hinge structure

Abstract

The utility model discloses a door and window hinge structure in the technical field of door and window hinges, which comprises a first fixing plate, a second fixing plate, a fixing cylinder, a rotating cylinder and a connecting shaft, the side wall of the first fixing plate is provided with the fixing cylinder, the side wall of the second fixing plate is provided with the rotating cylinder, and the fixing cylinder and the rotating cylinder are concentrically arranged. The connecting shaft is installed in the fixed cylinder and the rotating cylinder in an inserted mode, a connecting hole is formed in the upper end of the connecting shaft, an internal thread is arranged in the connecting hole, and an oil storage bottle is rotationally installed in the connecting hole through the thread. According to the device, the positioning block is arranged, so that lubricating oil in the positioning block can automatically flow into the fixed cylinder and the rotating cylinder under the action of gravity, the device is lubricated very conveniently, noise generated when the device is used is avoided, meanwhile, an oil receiving bottle in the positioning block can receive the lubricating oil flowing down, and the situation that the cleanliness of the device is affected due to leakage of the lubricating oil is avoided.

Description

Technical Field

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

[0002] Doors and windows in daily life are usually installed with hinges. Through the hinge connection, doors and windows can be rotated and opened and closed, making it convenient for people to open and close doors and windows.

[0003] After long-term use, the existing door and window hinges will produce abnormal noise during rotation due to the volatilization of the internal lubricating oil, which affects the user experience. At this time, it is necessary to add lubricating oil to reduce friction and eliminate noise. However, the existing door and window hinges are not convenient to add lubricating oil, and are prone to oil leakage, which affects the cleanliness of the product. Utility Model Content

[0004] The purpose of the present invention is to provide a door and window hinge structure to solve the problem in the above background technology that the existing door and window hinges are inconvenient to add lubricating oil and are prone to oil leakage, which affects the neatness of the product.

[0005] To achieve the above objectives, the present invention provides the following technical solutions: a door and window hinge structure, comprising a first fixed plate, a second fixed plate, a fixed cylinder, a rotating cylinder, and a connecting shaft, wherein the fixed cylinder is mounted on a side wall of the first fixed plate, the rotating cylinder is mounted on a side wall of the second fixed plate, the fixed cylinder and the rotating cylinder are concentrically arranged, and the connecting shaft is inserted and mounted in the fixed cylinder and the rotating cylinder;

[0006] The upper end of the connecting shaft is provided with a connecting hole, and the connecting hole is provided with an internal thread. An oil storage bottle is screwed into the connecting hole through the thread, and the oil storage bottle is filled with lubricating oil. The inner side wall of the connecting hole is provided with an oil outlet hole, and the oil outlet hole passes through the side wall of the connecting shaft;

[0007] The lower end of the connecting shaft is provided with an external thread, and the lower end of the connecting shaft is installed with a positioning block through the thread.

[0008] As a preferred embodiment of the present invention, the positioning block includes a threaded sleeve, an oil collecting bottle and a filter screen. The threaded sleeve is rotatably installed on the lower end of the connecting shaft, the lower end of the threaded sleeve is screwed into and installed with the oil collecting bottle, and the upper end of the oil collecting bottle is fitted with a filter screen.

[0009] As a preferred embodiment of the present invention, a first sealing ring is installed on the outer side of the connecting shaft and the upper wall of the positioning block, and the first sealing ring is in contact with the side wall of the fixed cylinder. A second sealing ring is installed on the upper and lower ends of the rotating cylinder, and the second sealing ring is in contact with the side wall of the fixed cylinder.

[0010] As a preferred embodiment of the present invention, a side wall at one end of the connecting shaft located in the threaded sleeve is provided with a relief groove.

[0011] As a preferred embodiment of the present invention, the side walls of the first fixing plate and the second fixing plate are both provided with connecting holes, and fixing bolts are inserted into the connecting holes and installed. The fixing bolts can be screwed into doors and windows installed outside.

[0012] As a preferred embodiment of the present invention, the filter screen includes a ring, a filter screen and a rubber ring. The ring is inserted and installed in the opening of the oil collecting bottle. The inner wall of the ring is installed with the filter screen. The outer side of the ring is sleeved with a rubber ring, and the rubber ring can fit with the inner wall of the threaded sleeve.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] The device is provided with an inverted oil storage bottle above the connecting shaft, so that the lubricating oil inside the bottle can flow into the fixed cylinder and the rotating cylinder by gravity, thereby completing the lubrication of the device. It is very convenient and avoids noise when using the device. At the same time, the oil receiving bottle in the positioning block can receive the flowing lubricating oil to avoid leakage of the lubricating oil and affect the neatness of the device.

[0015] In addition, the device is provided with a filter screen above the oil receiving bottle, so that the lubricating oil flowing down can be filtered out and impurities mixed therein can be screened out, so that the lubricating oil in the oil receiving bottle can be used again. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of this patent;

[0017] Figure 2 This is a schematic diagram of the cross-sectional structure of the connecting shaft of this patent;

[0018] Figure 3 for Figure 2 Schematic diagram of the structure at point A in the middle.

[0019] In the figure: 1 first fixing plate, 2 second fixing plate, 3 fixing cylinder, 4 rotating cylinder, 5 connecting shaft, 6 connecting hole, 7 oil storage bottle, 8 oil outlet hole, 9 positioning block, 10 first sealing ring, 11 second sealing ring, 12 clearance groove, 13 connecting hole, 14 fixing bolt, 91 threaded sleeve, 92 oil collecting bottle, 93 filter screen, 931 collar, 932 filter screen, 933 rubber ring. DETAILED DESCRIPTION

[0020] 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.

[0021] See also Figure 1-3 , the utility model provides a technical solution:

[0022] In this technical solution, a door and window hinge structure includes a first fixed plate 1, a second fixed plate 2, a fixed cylinder 3, a rotating cylinder 4 and a connecting shaft 5. The fixed cylinder 3 is installed on the side wall of the first fixed plate 1, and the rotating cylinder 4 is installed on the side wall of the second fixed plate 2. The fixed cylinder 3 and the rotating cylinder 4 are arranged concentrically, and the connecting shaft 5 is inserted and installed in the fixed cylinder 3 and the rotating cylinder 4.

[0023] A connecting hole 6 is formed at the upper end of the connecting shaft 5. The connecting hole 6 is provided with an internal thread. An oil storage bottle 7 is screwed into the connecting hole 6 through the thread. The oil storage bottle 7 is filled with lubricating oil. An oil outlet hole 8 is formed on the inner side wall of the connecting hole 6. The oil outlet hole 8 passes through the side wall of the connecting shaft 5.

[0024] The lower end of the connecting shaft 5 is provided with an external thread, and the lower end of the connecting shaft 5 is installed with a positioning block 9 through the thread;

[0025] In this technical solution, the assembly of the device is completed by connecting the fixed cylinder 3 and the rotating cylinder 4 together through the connecting shaft 5. Then, the first fixing plate 1 and the second fixing plate 2 are fixed to the external window frame and the window body respectively through the fixing bolts 14, so that the window body is connected to the window frame through the device.

[0026] The device is provided with an inverted oil storage bottle 7 on its connecting shaft 5. The lubricating oil inside the oil storage bottle 7 slowly enters the connecting hole 6 under the action of gravity, and flows into the fixed cylinder 3 and the rotating cylinder 4 through the oil outlet 8, thereby lubricating the device and preventing the device from generating noise when opening and closing.

[0027] Since the diameter of the oil outlet hole 8 is relatively small, it can ensure that the lubricating oil can slowly enter the fixed cylinder 3 and the rotating cylinder 4;

[0028] The lubricating oil entering the fixed cylinder 3 and the rotating cylinder 4 will enter the oil collecting bottle 92 in the positioning block 9 along the connecting shaft 5, and the lubricating oil will be collected by the oil collecting bottle 92 to prevent the lubricating oil from flowing out of the device and affecting the cleanliness of the device.

[0029] In some technical solutions, the positioning block 9 includes a threaded sleeve 91, an oil collecting bottle 92 and a filter screen 93. The threaded sleeve 91 is rotatably installed on the lower end of the connecting shaft 5. The lower end of the threaded sleeve 91 is screwed into and installed with the oil collecting bottle 92, and the upper end of the oil collecting bottle 92 is fitted with a filter screen 93.

[0030] In this technical solution, when the lubricating oil flows into the oil receiving bottle 92, some impurities will be mixed in it. Therefore, the present device is provided with a filter 93 at the port of the oil receiving bottle 92 to filter the lubricating oil, thereby facilitating its reuse.

[0031] When all the lubricating oil in the oil storage bottle 7 flows into the oil receiving bottle 92, the positions of the two can be exchanged, the oil storage bottle 7 can be screwed into the threaded sleeve 91, and the filter 93 can be set at the port of the oil storage bottle 7, and then the oil receiving bottle 92 can be installed upside down in the connecting hole 6.

[0032] In some technical solutions, a first sealing ring 10 is installed on the outer side of the connecting shaft 5 and the upper wall of the positioning block 9, and the first sealing ring 10 is in contact with the side wall of the fixed cylinder 3. A second sealing ring 11 is installed on the upper and lower ends of the rotating cylinder 4, and the second sealing ring 11 is in contact with the side wall of the fixed cylinder 3.

[0033] In this technical solution, the arrangement of the first sealing ring 10 and the second sealing ring 11 can prevent the lubricating oil from leaking from the gap at the connection, thereby avoiding affecting the neatness of the device.

[0034] In some technical solutions, a clearance groove 12 is formed on the side wall of one end of the connecting shaft 5 located in the threaded sleeve 91 .

[0035] In this technical solution, the provision of the relief groove 12 allows the lubricating oil to enter the threaded sleeve 91 and then enter the oil receiving bottle 92 through the threaded sleeve 91 .

[0036] In some technical solutions, the side walls of the first fixing plate 1 and the second fixing plate 2 are both provided with connecting holes 13 , and fixing bolts 14 are inserted and installed in the connecting holes 13 . The fixing bolts 14 can be screwed into doors and windows installed outside.

[0037] In some technical solutions, the filter screen 93 includes a ring 931, a filter screen 932 and a rubber ring 933. The ring 931 is inserted and installed in the opening of the oil collecting bottle 92. The filter screen 932 is installed on the inner wall of the ring 931. The outer side of the ring 931 is sleeved with a rubber ring 933. The rubber ring 933 can fit with the inner wall of the threaded sleeve 91.

[0038] In this technical solution, the provision of the rubber ring 933 can prevent the lubricating oil from flowing to the outside of the oil receiving bottle 92 and causing leakage of the lubricating oil.

[0039] Working principle: The lubricating oil inside the inverted oil storage bottle 7 will slowly enter the connecting hole 6 under the action of gravity, and flow into the fixed cylinder 3 and the rotating cylinder 4 through the oil outlet hole 8, so as to lubricate the device and avoid the device from making noise when opening and closing. Because the diameter of the oil outlet hole 8 in this article is small, it can be ensured that the lubricating oil can slowly enter the fixed cylinder 3 and the rotating cylinder 4. The lubricating oil entering the fixed cylinder 3 and the rotating cylinder 4 will enter the oil receiving bottle 92 in the positioning block 9 along the connecting shaft 5. The lubricating oil is collected by the oil receiving bottle 92 to prevent the lubricating oil from flowing out of the device and affecting the cleanliness of the device.

[0040] 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.

[0041] 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. A door and window hinge structure, comprising a first fixing plate (1), a second fixing plate (2), a fixing cylinder (3), a rotating cylinder (4) and a connecting shaft (5), characterized in that: A fixed cylinder (3) is installed on the side wall of the first fixed plate (1), and a rotating cylinder (4) is installed on the side wall of the second fixed plate (2); the fixed cylinder (3) and the rotating cylinder (4) are concentrically arranged, and the connecting shaft (5) is inserted and installed in the fixed cylinder (3) and the rotating cylinder (4); The upper end of the connecting shaft (5) is provided with a connecting hole (6), the connecting hole (6) is provided with an internal thread, an oil storage bottle (7) is screwed into the connecting hole (6) by means of the thread, the oil storage bottle (7) is filled with lubricating oil, an oil outlet hole (8) is provided on the inner side wall of the connecting hole (6), and the oil outlet hole (8) passes through the side wall of the connecting shaft (5); The lower end of the connecting shaft (5) is provided with an external thread, and a positioning block (9) is installed on the lower end of the connecting shaft (5) through the thread.

2. A door and window hinge structure according to claim 1, characterized in that: The positioning block (9) comprises a threaded sleeve (91), an oil receiving bottle (92) and a filter screen (93); the threaded sleeve (91) is rotatably mounted on the lower end of the connecting shaft (5); the oil receiving bottle (92) is screwed into the lower end of the threaded sleeve (91); and the filter screen (93) is fitted on the upper end of the oil receiving bottle (92).

3. The door and window hinge structure according to claim 1, characterized in that: A first sealing ring (10) is installed on the outer side of the connecting shaft (5) and the upper wall of the positioning block (9), and the first sealing ring (10) is in contact with the side wall of the fixed cylinder (3). A second sealing ring (11) is installed on the upper and lower ends of the rotating cylinder (4), and the second sealing ring (11) is in contact with the side wall of the fixed cylinder (3).

4. A door and window hinge structure according to claim 2, characterized in that: A side wall of one end of the connecting shaft (5) located inside the threaded sleeve (91) is provided with a clearance groove (12).

5. The door and window hinge structure according to claim 1, characterized in that: The side walls of the first fixing plate (1) and the second fixing plate (2) are both provided with connection holes (13), and fixing bolts (14) are inserted and installed in the connection holes (13). The fixing bolts (14) can be screwed into doors and windows installed outside.

6. The door and window hinge structure according to claim 2, characterized in that: The filter screen (93) comprises a collar (931), a filter screen (932) and a rubber ring (933). The collar (931) is inserted into the opening of the oil receiving bottle (92). The filter screen (932) is installed on the inner side wall of the collar (931). The outer side of the collar (931) is sleeved with a rubber ring (933). The rubber ring (933) can fit with the inner side wall of the threaded sleeve (91).

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