Hinge capable of being installed adjustably

Abstract

The utility model relates to the technical field of hinges, in particular to an adjustably-installed hinge which comprises a hinge body composed of a center shaft, a sub-chain and a main chain, the center shaft comprises a main rod and plugs arranged at the two ends of the main rod, a gear ring is further fixedly arranged on the outer surface of the center shaft, and a positioning mechanism comprises adjusting rods movably connected in the plugs in an embedded mode. A circular ring is rotationally arranged on the outer surface of the adjusting rod and located above the plug, a plurality of positioning rods are fixedly connected to the bottom end of the circular ring, the circular ring and the positioning rods are driven to move up and down by rotating the adjusting rod, and when the positioning rods move upwards and are located above the gear ring, the sub-chain can rotate around the center shaft at the moment; when the multiple positioning rods move downwards and are clamped in the tooth grooves of the gear ring, the rotation angle between the sub-chain and the center shaft is fixed at the moment, the opening and closing angle of the sub-chain is locked, the effect that the installation state of the U-shaped fence is controlled through adjustment of the hinge is achieved, the adjustment process is simple and easy to control, and higher practicability is achieved.

Description

Technical Field

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

[0002] A hinge is a mechanical device used to connect two solids and allow relative rotation between them. A hinge is usually composed of two parent and child chains connected in rotation. Hinges are widely used in daily use, such as U-shaped wooden enclosures used as decorations or obstacles. The enclosure has a fixed horizontal bottom and two vertical sides in an open and closed state. Two hinges are required for installation. The child chain of each hinge is fixed to one of the side surfaces by bolts, and the parent chain is fixed to the adjacent bottom surface by bolts. However, existing hinges often have the function of rotating opening and closing. When installed on such U-shaped wooden enclosures, the hinge cannot lock its rotation angle. Therefore, the installation state of the enclosure itself cannot be adjusted only by the movement of the hinge. Some auxiliary mechanisms are required as support to adjust the installation state of the enclosure itself. Therefore, the function of this hinge is single and its practicality is low. Utility Model Content

[0003] To achieve the above-mentioned object, the present invention provides the following technical solution: an adjustable hinge, comprising a hinge consisting of a central shaft, a sub-chain and a main chain, wherein the central shaft comprises a main rod and plugs provided at both ends of the main rod, and a gear ring is fixedly provided on the outer surface of the central shaft;

[0004] The sub-chain includes a first rotating drum and a first connecting plate of an integrated structure, and the number of the first rotating drum is two and they are movably sleeved on the outer surface of the main rod;

[0005] The mother chain includes a second rotating drum and a second connecting plate of an integrated structure, wherein the second rotating drum is movably sleeved on the outer surface of the main rod and is located in the middle of the two first rotating drums;

[0006] A positioning mechanism is also provided at the top end of the central shaft, which includes an adjusting rod movably embedded in the plug. The outer surface of the adjusting rod is located above the plug and is rotatably provided with a ring, and the bottom end of the ring is fixedly connected to multiple positioning rods.

[0007] Preferably, a threaded cavity communicating with each other up and down is provided inside the main rod and the plug, the diameter of the plug is larger than the diameter of the main rod, and a plurality of first through holes are provided on the plug for the vertical movement of the positioning rod to pass through.

[0008] Preferably, a portion of the outer surface of the adjusting rod is an external thread structure, and is adapted to be connected with the threaded cavity of the main rod and the plug, and a plurality of positioning rods are distributed in a circular array and are located outside the main rod.

[0009] Preferably, the number of the first through holes is the same as the number of the positioning rods, and a plurality of second through holes are provided on a first rotating drum located above in the sub-chain, the number of the second through holes is the same as the number of the positioning rods, and the plurality of first through holes corresponds to the plurality of second through holes up and down.

[0010] Preferably, the length of the positioning rod is less than the sum of the lengths of the plug and one of the first rotating drums, and the lower end of the positioning rod is vertically movably engaged in the tooth groove of the positioning rod to limit the rotation of the sub-chain.

[0011] Preferably, a gap is provided between the lower inner wall of the upper first rotating drum in the sub-chain and the gear ring, the first connecting plate and the second connecting plate have the same height and a plurality of mounting holes are provided on their mounting surfaces.

[0012] Preferably, the mounting surface of the second connecting plate is provided with a groove running through the top and bottom ends thereof, and when the two hinges are used in combination, the grooves of the two second connecting plates are butted against each other.

[0013] Compared with the prior art, the present invention provides an adjustable hinge with the following advantages:

[0014] By rotating the adjusting rod, the ring and the positioning rod are driven up and down. When multiple positioning rods move up and are located above the gear ring, the sub-chain can rotate around the central axis. When multiple positioning rods move down and are engaged in the tooth grooves of the gear ring, the rotation angle between the sub-chain and the central axis is fixed, so that the opening and closing angle of the sub-chain is locked, achieving the effect of controlling the installation state of the U-shaped enclosure by adjusting the hinge itself. The adjustment process is simple and easy to control, and has higher practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0016] Figure 1 This is a schematic diagram of the combined structure of two hinges of the utility model;

[0017] Figure 2 This is a structural diagram of the central axis and parent chain of one of the hinges of the present invention;

[0018] Figure 3 This is an exploded view of the sub-chain and positioning mechanism of one of the hinges of the present invention;

[0019] Figure 4 This is a disassembled diagram of the two hinges of the utility model;

[0020] Figure 5This is a disassembled diagram of the positioning mechanism of the central shaft and its top end of the utility model.

[0021] Description of reference numerals:

[0022] Central axis; 11, main rod; 12, plug; 121, first through hole; 13, ring gear;

[0023] Sub-chain; 21, first rotating drum; 211, second through hole; 22, first connecting plate;

[0024] Mother chain; 31, second rotating drum; 32, second connecting plate

[0025] 4. Positioning mechanism; 41. Adjusting rod; 42. Ring; 43. Positioning rod;. DETAILED DESCRIPTION

[0026] The following will describe the implementation methods of the present application in detail with reference to the accompanying drawings and examples, so that the implementation process of how the present application applies technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0027] like Figure 1-5 The figure shows an embodiment of the present invention. To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an adjustable hinge, comprising a hinge consisting of a central shaft 1, a sub-chain 2, and a mother chain 3. The central shaft 1 comprises a main rod 11 and plugs 12 provided at both ends of the main rod 11. A gear ring 13 is fixedly provided on the outer surface of the central shaft 1. A threaded cavity communicating with each other from top to bottom is defined inside the main rod 11 and the plug 12. The diameter of the plug 12 is larger than that of the main rod 11. The function of the plug 12 is to dynamically restrict the sub-chain 2 and the mother chain 3 to the main rod 11 at all times.

[0028] Furthermore, the sub-chain 2 includes a first rotating drum 21 and a first connecting plate 22 of an integrated structure. There are two first rotating drums 21 and they are movably sleeved on the outer surface of the main rod 11. The sub-chain 2 can rotate 360 ​​degrees on the outer surface of the main rod 11 alone.

[0029] Furthermore, the mother chain 3 includes an integrated second rotating drum 31 and a second connecting plate 32. The second rotating drum 31 is movably sleeved on the outer surface of the main rod 11 and is located between the two first rotating drums 21. The mother chain 3 can also rotate 360 ​​degrees on the outer surface of the main rod 11 alone. When the sub-chain 2 and the mother chain 3 are installed on the outer surface of the main rod 11 at the same time, there will be a certain angle of intersection and mutual inhibition during the counter-rotation of the two, so that the angle of simultaneous counter-rotation of the two is less than 360 degrees.

[0030] Furthermore, a positioning mechanism 4 is provided at the top of the central shaft 1. The positioning mechanism 4 includes an adjusting rod 41 movably embedded in the plug 12. The outer surface of the adjusting rod 41 is located above the plug 12 and is rotatably provided with a ring 42. The bottom end of the ring 42 is fixedly connected to a plurality of positioning rods 43. The plug 12 is provided with a plurality of first through holes 121 for the vertical movement through of the positioning rods 43. The number of the plurality of first through holes 121 is the same as the number of the positioning rods 43. A plurality of first through holes 121 are provided on a first rotating drum 21 located above the sub-chain 2. The plurality of second through holes 211 are the same as the number of the positioning rods 43. The plurality of first through holes 121 correspond to the plurality of second through holes 211 in an upper and lower direction. When the adjusting rod 41 is rotated, the adjusting rod 41 can move up and down and simultaneously drive the ring 42 and the positioning rod 43 to move up and down. Since the ring 42 and the adjusting rod 41 are rotatably connected, the ring 42 does not rotate when the adjusting rod 41 rotates. The positioning rod 43 moves upward and out of the tooth groove of the gear ring 13. At this time, the sub-chain 2 can rotate around the central axis 1.

[0031] Among them, a portion of the outer surface of the adjustment rod 41 is an external thread structure, and is adapted to be connected with the threaded cavity of the main rod 11 and the plug 12. A plurality of positioning rods 43 are distributed in a circular array and are located on the outside of the main rod 11. The length of the positioning rod 43 is less than the sum of the lengths of the plug 12 and one of the first rotating drums 21, and the lower end of the positioning rod 43 is vertically movable and engaged in the tooth groove of the positioning rod 43 to limit the rotation of the sub-chain 2. When the positioning rod 43 moves downward and is engaged in the tooth groove of the gear ring 13, the rotation angle between the sub-chain 2 and the central axis 1 is fixed, so that the opening and closing angle of the sub-chain 2 is fixed;

[0032] Among them, there is a gap between the lower inner wall of the first rotating drum 21 located at the top of the sub-chain 2 and the gear ring 13. Therefore, when the first rotating drum 21 rotates on the outer surface of the main rod 11, it will not be obstructed or rubbed by the gear ring 13. The first connecting plate 22 and the second connecting plate 32 are of the same height and the mounting surfaces of both are provided with multiple mounting holes, which is convenient for using bolts to install the hinge on the board surface of the wooden board. The mounting surface of the second connecting plate 32 is provided with a groove running through its top and bottom ends. When the two hinges are used in combination, the grooves of the two second connecting plates 32 are connected to each other, so that the connecting surfaces of the second connecting plates 32 of the two hinges can be kept flush, ensuring that the surface of the second connecting plate 32 is more closely fitted with the surface of the wooden board.

[0033] When the above embodiment is working, the use of a single hinge is as follows: the sub-chain 2 and the main chain 3 in the hinge are respectively installed on the movable side and the fixed bottom surface of the U-shaped enclosure by bolts. Under normal conditions, the multiple positioning rods 43 in the positioning mechanism 4 are all located above the gear ring 13 and do not contact the gear ring 13. At this time, a movable plate surface can be opened and closed. When the opening and closing angle of the plate surface needs to be fixed, the rotating adjustment rod 41 can be moved up and down in the plug 12, and at the same time, the ring 42 and the positioning rod 43 can be moved up and down. 41 are rotatably connected, so when the adjusting rod 41 rotates, the ring 42 does not rotate. When the positioning rod 43 moves down and is engaged in the tooth groove of the gear ring 13, since multiple positioning rods 43 also pass through the second through hole 211 at the same time, the first rotating drum 21 and the first connecting plate 22 can no longer rotate. The rotation angle between the sub-chain 2 and the central axis 1 is fixed, so that the opening and closing angle of the sub-chain 2 is locked. This adjustment process is simple and easy to control, achieving the effect of controlling the installation state of the U-shaped enclosure by adjusting the hinge itself, which has higher practicality.

[0034] When the two hinges are used in combination, the grooves of the two second connecting plates 32 are connected to each other, and the two are connected as one with bolts. This can keep the connection surfaces of the second connecting plates 32 of the two hinges flush, ensuring that the surfaces of the second connecting plates 32 are more closely fitted with the plate surface. At this time, the two combined second connecting plates 32 are set as the mother chain of the hinge, which is used to connect a fixed plate surface such as the bottom surface of a U-shaped enclosure. The two first connecting plates 22 of the two hinges are respectively set as two movable sub-chains, which are used to connect two movable plate surfaces such as the two openable and closable sides of a U-shaped enclosure. This installation method is suitable for U-shaped enclosures whose bottom surface width matches the width of the mother chain 3 of the hinge. The opening and closing method of the two opening and closing sides is the same as that when the above-mentioned single hinge is used.

[0035] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An adjustable hinge comprising a central axis (1), a sub-chain (2) and a main chain (3), characterized in that: The central shaft (1) comprises a main rod (11) and plugs (12) arranged at both ends of the main rod (11); a gear ring (13) is also fixedly arranged on the outer surface of the central shaft (1); The sub-chain (2) comprises a first rotating drum (21) and a first connecting plate (22) of an integrated structure, wherein the first rotating drum (21) is provided in two pieces and is movably sleeved on the outer surface of the main rod (11); The mother chain (3) comprises a second rotating drum (31) and a second connecting plate (32) of an integrated structure, wherein the second rotating drum (31) is movably sleeved on the outer surface of the main rod (11) and is located in the middle of the two first rotating drums (21); A positioning mechanism (4) is also provided at the top end of the central shaft (1), and the positioning mechanism (4) includes an adjusting rod (41) movably embedded in and connected to the plug (12). The outer surface of the adjusting rod (41) is rotatably provided with a ring (42) above the plug (12), and the bottom end of the ring (42) is fixedly connected to a plurality of positioning rods (43).

2. The adjustable hinge according to claim 1, characterized in that: A threaded cavity communicating with each other from top to bottom is provided inside the main rod (11) and the plug (12); the diameter of the plug (12) is larger than the diameter of the main rod (11), and a plurality of first through holes (121) are provided on the plug (12) for the vertical movement of the positioning rod (43).

3. The adjustable hinge according to claim 2, characterized in that: A portion of the outer surface of the regulating rod (41) is an external thread structure and is adapted to be connected to the threaded cavity of the main rod (11) and the plug (12). A plurality of positioning rods (43) are distributed in a circular array and are located outside the main rod (11).

4. The adjustable hinge according to claim 2, characterized in that: The number of the plurality of first through holes (121) is the same as the number of the positioning rods (43); a plurality of second through holes (211) is provided on a first rotating drum (21) located at the top of the sub-chain (2); the number of the second through holes (211) is the same as the number of the positioning rods (43); and the plurality of first through holes (121) and the plurality of second through holes (211) correspond to each other in an upper and lower manner.

5. The adjustable hinge according to claim 1, characterized in that: The length of the positioning rod (43) is less than the sum of the lengths of the plug (12) and one of the first rotating drums (21), and the lower end of the positioning rod (43) is vertically movably engaged in the tooth groove of the positioning rod (43) to limit the rotation of the sub-chain (2).

6. The adjustable hinge according to claim 1, characterized in that: A gap is provided between the lower inner wall of a first rotating drum (21) located at the top of the sub-chain (2) and the gear ring (13); the first connecting plate (22) and the second connecting plate (32) are of the same height, and a plurality of mounting holes are provided on the mounting surfaces of both.

7. The adjustable hinge according to claim 1, characterized in that: The mounting surface of the second connecting plate (32) is provided with a groove running through the top and bottom ends thereof, and when the two hinges are used in combination, the grooves of the two second connecting plates (32) are butted against each other.

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