Folding door hinge

Abstract

The utility model provides a folding door hinge and relates to the technical field of hinges, the folding door hinge comprises hinge discs and a hinge body, a rectangular hinge cup is fixed at a groove of the top surface of each hinge disc, the hinge discs are circular, the hinge body comprises a chain plate and a chain arm, the top surface of each hinge disc is provided with an adjusting groove, and the adjusting grooves are matched with the hinge plates. An adjusting toothed plate is arranged in the adjusting groove, an adjusting straight notch penetrates through the top face of the chain plate and the top face of the chain plate, a locking hole is formed in the top face of the hinge disc, and a locking screw is connected into the locking hole in a threaded mode. One end of the hinge can be installed only by embedding the round hinge disc into the round groove in the installation position and locking and fixing the chain cup on the hinge disc and an installed component through the screw, operation is simple, the mode that the lengths of the chain plate and the chain arm are independently adjustable is adopted, the whole hinge can meet most installation requirements, and the installation efficiency is improved. And the overall flexibility of the hinge is improved.

Description

Technical Field

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

[0002] Folding door hinges are used to rotatably connect two movable furniture parts, which, for example, form doors in the area of ​​a recessed corner of an interior kitchen or the like and are therefore suitable for overlapping a hinged corner.

[0003] According to the patent publication number CN220117951U, a hinge, in particular, a wear-resistant hinge, includes an upper shaft body, a lower shaft body and an intermediate shaft body disposed between the upper shaft body and the lower shaft body, the upper shaft body, the lower shaft body and the intermediate shaft body are all cylindrical structures that penetrate from top to bottom, an upper end cover is provided at the opening of the upper end of the upper shaft body, and a lower end cover is provided at the opening of the lower end of the lower shaft body, the upper end cover is provided with a first positioning shaft extending through the intermediate shaft body toward the lower end cover, the first positioning shaft is provided with a lubrication channel for conveying lubricating oil, an oil storage tank is provided on the upper end cover, an oil delivery opening is provided at the bottom of the oil storage tank, and the oil delivery channel is connected to the oil storage tank through the oil delivery opening. The rotation between the first positioning shaft and the intermediate shaft body can be lubricated through the oil delivery channel, which effectively reduces the wear during rotation and can ensure the reliability of the hinge rotation. The oil storage tank can store lubricating oil, reducing the frequency of hinge maintenance.

[0004] The above introduces the hinges of folding doors. Traditional hinges are usually fixed directly to folding doors and other components by means of screws, but they are prone to deviation during fixed installation, resulting in tilted hinge installation, making installation difficult. At the same time, existing hinges have low flexibility, and usually the length of the hinges cannot be adjusted, making it difficult to adjust according to on-site installation requirements to complete the installation. Utility Model Content

[0005] The utility model aims to solve the technical problems of the prior art that hinges are prone to tilt and have low flexibility during installation, and proposes a folding door hinge.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a folding door hinge, including a hinge plate and a hinge body, a chain cup is fixed at the groove on the top surface of the hinge plate, and the chain cup is rectangular, there are two groups of hinge plates, and the hinge plate is circular, the hinge body includes a chain plate and a chain arm, an adjustment groove is provided on the top surface of the hinge plate, an adjustment tooth plate is provided in the adjustment groove, the chain plate and the top surface of the chain plate are penetrated by an adjustment straight notch, a locking hole is provided on the top surface of the hinge plate, and a locking screw is threadedly connected to the locking hole.

[0007] It can be seen that in the above technical solution, a circular hinge plate is used as a component for the overall installation and positioning of the hinge. It is only necessary to embed the circular hinge plate into the circular groove at the installation position and lock the chain cup on the hinge plate and the installed component with screws to complete the installation of one end of the hinge. The operation is simple, and the chain plate and chain arm lengths are individually adjustable, so that the hinge as a whole can meet most installation requirements, thereby improving the overall flexibility of the hinge.

[0008] Preferably, a mounting hole is provided on the top of the chain cup, and the hinge body is located between two sets of hinge plates.

[0009] It can be seen that in the above technical solution, the mounting hole is used to fix the hinge cup to the component to be installed.

[0010] Preferably, the tooth openings on the bottom surfaces of the chain plate and the chain arm respectively cooperate with the top surfaces of the adjusting tooth plates at corresponding positions.

[0011] It can be seen that in the above technical solution, the tooth grooves on the adjusting tooth plate have multiple groups mainly used for limiting the chain plates or chain arms at corresponding positions.

[0012] Preferably, the bottom surfaces of the chain plate and the chain arm are provided with limit members, and the limit members are located at the gap between the side of the adjustment tooth plate and the inner wall of the adjustment groove, and the limit members are installed in cooperation with the adjustment groove.

[0013] It can be seen that in the above technical solution, the chain plate or the chain arm can be linearly limited by utilizing the sliding connection between the limiting member and the installation position of the adjusting groove.

[0014] Preferably, the locking screw is located in the adjusting straight slot, and the top end of the locking screw fits with the top surfaces of the chain plate and the chain arm at corresponding positions.

[0015] It can be seen that in the above technical solution, the chain plate or the chain arm can be locked and connected to the hinge plate at the corresponding position by using the locking screw.

[0016] Preferably, a pre-installation opening is provided at one end of the adjusting tooth notch opening on the top surface of the chain arm, and the pre-installation opening is circular.

[0017] It can be seen that in the above technical solution, the pre-installation opening can be used to first install the two hinge plates and then adjust the chain arms and lock them, which is convenient for personnel to install.

[0018] Beneficial Effects

[0019] In the utility model, a circular hinge plate is used as a component for the overall installation and positioning of the hinge. The circular hinge plate cooperates with the circular groove at the required installation position. One end of the hinge can be installed by simply embedding the circular hinge plate into the circular groove at the installation position and locking the chain cup on the hinge plate to the installed component by screws. Similarly, the installation and fixation of the hinge at the other end can be completed with one operation. The operation is simple. The position of the hinge is pre-installed in advance when the hinge is installed, thereby greatly reducing the problem of offset or tilt of the hinge during installation. At the same time, the length of the chain plate and the chain arm can be adjusted separately, so that the hinge as a whole can meet most installation requirements, improving the overall flexibility of the hinge, and adding a pre-installation port at one end of one of the adjusting straight slots. The two sets of hinge plates can be fixed first and then the length of the hinge body can be adjusted, which is convenient for installation and disassembly, greatly reducing the difficulty of hinge installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is an axonometric drawing of the utility model;

[0021] Figure 2 It is an exploded view of the utility model;

[0022] Figure 3 It is a top view of the utility model;

[0023] Figure 4 This is the overall structural diagram of the hinge plate of the present utility model.

[0024] Legend:

[0025] 1. Hinge plate; 2. Chain cup; 21. Mounting hole; 3. Hinge body; 31. Chain plate; 32. Chain arm; 4. Adjustment slot; 5. Adjustment tooth plate; 6. Adjustment straight slot; 7. Pre-installation port; 8. Limiting piece; 9. Locking screw; 10. Locking hole. DETAILED DESCRIPTION

[0026] In order to make the technical means, creative features, objectives and effects of the present invention easy to understand, the present invention is further described below in conjunction with specific embodiments and drawings, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the present invention.

[0027] The specific embodiments of the present utility model are described below in conjunction with the accompanying drawings. Specific embodiment:

[0029] Reference Figure 1-4The folding door hinge comprises a hinge plate 1 and a hinge body 3. A chain cup 2 is fixed at the groove on the top surface of the hinge plate 1, and the chain cup 2 is rectangular. There are two sets of hinge plates 1, and the hinge plate 1 is circular. A mounting hole 21 is provided on the top of the chain cup 2. The hinge body 3 is located between the two sets of hinge plates 1. The hinge as a whole is composed of main components such as the hinge plate 1, the chain cup 2 and the hinge body 3. The hinge as a whole is used to be installed on components such as folding doors, and is mainly used to flip and open the connected and installed components through the hinge. The hinge plate 1 is circular, and the circular hinge plate 1 cooperates with the circular groove at the required installation position. The required installation position here The circular groove at the location refers to the circular groove on the installation components such as folding doors. One end of the hinge can be installed by simply embedding the circular hinge plate 1 into the circular groove at the installation position and locking the chain cup 2 on the hinge plate 1 to the installed component with screws. The mounting hole 21 on the chain plate 31 is the installation position of the screw on the chain cup 2. Similarly, the installation and fixation of the hinge can be completed in one operation at the other end. The operation is simple. The hinge is pre-installed in advance when it is installed, thereby greatly reducing the problem of displacement or tilt of the hinge during installation. The chain cup 2 is mainly used to fix the hinge plate 1 to the installation component with screws.

[0030] The hinge body 3 includes a chain plate 31 and a chain arm 32. The hinge body 3 is mainly composed of the chain plate 31 and the chain arm 32, wherein the chain plate 31 and the chain arm 32 are hinged, and both can rotate freely. The chain plate 31 and the chain arm 32 are connected to the hinge plate 1 at the corresponding position.

[0031] An adjustment groove 4 is provided on the top surface of the hinge plate 1, and an adjustment tooth plate 5 is provided in the adjustment groove 4. A limit piece 8 is provided on the bottom surface of the chain plate 31 and the chain arm 32, and the limit piece 8 cooperates with the installation position at the adjustment groove 4. It is necessary to explain that the limit piece 8 at the bottom end of the chain plate 31 and the chain arm 32 is located in the adjustment groove 4 on the top surface of the hinge plate 1, while ensuring that the limit piece 8 can cooperate and slide with the installation position of the adjustment groove 4, it can prevent the chain plate 31 or the chain arm 32 from being separated from the corresponding hinge plate 1, and the chain plate 31 and the length of the chain plate 31 can be adjusted manually. During installation, the installation position of the hinge plate 1 can be determined first, and the length of each component of the hinge body 3 can be adjusted to meet the installation requirements. Finally, the position of the chain plate 31 and the chain arm 32 can be fixed with the locking screw 9 to complete the installation.

[0032] The teeth on the bottom surfaces of the chain plate 31 and the chain arm 32 respectively cooperate with the top surfaces of the adjusting tooth plate 5 at the corresponding positions, and the limit member 8 is located in the gap between the side surface of the adjusting tooth plate 5 and the inner wall of the adjusting groove 4. To further explain, the teeth on the bottom surfaces of the chain plate 31 and the chain arm 32 cooperate with the top surface of the adjusting tooth plate 5 on the hinge plate 1, and the tooth grooves on the adjusting tooth plate 5 have multiple groups of teeth that are mainly used to limit the chain plate 31 or the chain arm 32 at the corresponding positions, so that the chain plate 31 or the chain arm 32 needs to be pulled forcefully when adjusting the length, so that it can be moved linearly on the adjusting tooth plate 5 one grid at a time, avoiding the problem that the chain plate 31 or the chain arm 32 is easily moved again after the length adjustment is completed, wherein the limit member 8 is located in the gap between the side surface of the adjusting tooth plate 5 and the inner wall of the adjusting groove 4.

[0033] The chain plate 31 and the top surface of the chain plate 31 are penetrated with an adjusting straight slot 6, and a locking hole 10 is opened on the top surface of the hinge plate 1, and a locking screw 9 is threadedly connected to the locking hole 10, and the locking screw 9 is located in the adjusting straight slot 6, and the top of the locking screw 9 is in contact with the top surface of the chain plate 31 and the chain arm 32 at the corresponding position. The top surfaces of the chain plate 31 and the chain arm 32 are penetrated with an adjusting straight slot 6, wherein the locking screw 9 is located in the adjusting straight slot 6 and is threadedly connected to the locking hole 10 on the hinge plate 1, and is mainly used to connect and fix the chain plate 31 and the chain arm 32 to the corresponding hinge plate 1. When the length of the chain plate 31 or the chain arm 32 needs to be adjusted, the locking bolt can be loosened to complete the length adjustment of the chain plate 31 or the chain arm 32.

[0034] A pre-installation opening 7 is provided at one end of the adjusting tooth groove opening on the top surface of the chain arm 32, and the pre-installation opening 7 is circular. Generally, the locking screw 9 on the chain plate 31 is always threadedly fixed to the corresponding hinge plate 1. During installation, the hinge plate 1 here is first installed and fixed, and the length of the chain arm 32 is adjusted to meet the installation requirements. When adjusting the length of the chain arm 32, it is only necessary to loosen the locking screw 9 at the corresponding position in advance and move it to the pre-installation opening 7 at one end of the adjusting straight groove opening 6 on the chain arm 32. Since the radius of the pre-installation opening 7 is larger than the adjusting straight groove opening 6 here, when the locking screw 9 is moved to this place, the length of the chain arm 32 can be manually adjusted. After the adjustment is completed, the locking screw 9 is moved to the locking hole 10 on the hinge plate 1 for locking.

[0035] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0036] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A folding door hinge, comprising a hinge plate (1) and a hinge body (3), characterized in that: A chain cup (2) is fixed at the groove on the top surface of the hinge plate (1), and the chain cup (2) is rectangular. The hinge plate (1) has two groups, and the hinge plate (1) is circular. The hinge body (3) comprises a chain plate (31) and a chain arm (32). An adjustment groove (4) is provided on the top surface of the hinge plate (1), and an adjustment tooth plate (5) is provided in the adjustment groove (4). The chain plate (31) and the top surface of the chain plate (31) are penetrated by an adjustment straight notch (6). A locking hole (10) is provided on the top surface of the hinge plate (1), and a locking screw (9) is connected to the inner thread of the locking hole (10).

2. The folding door hinge according to claim 1, characterized in that: A mounting hole (21) is provided on the top of the chain cup (2), and the hinge body (3) is located between the two sets of hinge plates (1).

3. The folding door hinge according to claim 1, characterized in that: The tooth openings on the bottom surfaces of the chain plate (31) and the chain arm (32) respectively cooperate with the top surfaces of the adjustment tooth plates (5) at corresponding positions.

4. The folding door hinge according to claim 1, characterized in that: The bottom surfaces of the chain plate (31) and the chain arm (32) are both provided with a limiting member (8), and the limiting member (8) is located at the gap between the side of the adjusting tooth plate (5) and the inner wall of the adjusting groove (4), and the limiting member (8) and the installation position at the adjusting groove (4) cooperate with each other.

5. The folding door hinge according to claim 1, characterized in that: The locking screw (9) is located in the adjusting straight slot (6), and the top end of the locking screw (9) is in contact with the top surfaces of the chain plate (31) and the chain arm (32) at corresponding positions.

6. The folding door hinge according to claim 1, characterized in that: A pre-installation opening (7) is provided at one end of the adjustment tooth notch opening on the top surface of the chain arm (32), and the pre-installation opening (7) is circular.

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