Eccentric Adjustable Hinge

Abstract

This invention relates to an eccentric adjustment hinge, comprising a rotating shaft, a first hinge leaf assembly, and a second hinge leaf assembly. The rotating shaft has a central axis section and an eccentric axis section. The first hinge leaf assembly has a first hinge seat, which connects to the central axis section via a first shaft hole. The second hinge leaf assembly has a second hinge seat, an eccentric sleeve, and a positioning element. The eccentric sleeve has an eccentrically positioned connecting hole and a circumferential tubular surface. The eccentric sleeve is fitted onto the eccentric axis section and can rotate relative to it. The second hinge seat is fitted onto the circumferential tubular surface of the eccentric sleeve via a second shaft hole. The positioning element is assembled onto the second hinge seat, connecting the eccentric sleeve and the second hinge seat as a single unit. This invention adjusts the hinge through eccentricity, has a simple structure, is easy to install and use, and allows for multi-directional adjustment of the positional relationship between the first and second hinge leaf assemblies, facilitating alignment during construction and installation. It is suitable for use on cabinet doors or box doors.

Description

Technical Field

[0001] This invention relates to the field of hinge technology, and in particular to adjustable hinges. Background Technology

[0002] Traditional hinges primarily utilize a pin-connected folding blade design, with two foldable blades locking onto the upper and lower positions of the door panel and frame respectively. This means that two folding hinges, one at the top and one at the bottom, connect the door panel and frame. Because the positions of the blades are not adjustable, alignment during installation is often difficult, leading to assembly precision deviations and affecting the tightness and aesthetics of the door panel and frame. Subsequently, adjustable hinges emerged to achieve better installation positions and angles. These adjustable hinges represent the current research and development direction in the industry. It is against this backdrop that the applicant proposes an eccentric adjustable hinge, which is the subject of this application. Summary of the Invention

[0003] The purpose of this invention is to provide an eccentric adjustment hinge with a simple and reasonable structure, easier adjustment, multi-directional adjustment capability, and convenient construction and installation alignment.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] An eccentric adjusting hinge has the following characteristics:

[0006] A rotating shaft having a positive shaft section and an eccentric shaft section extending from at least one end of the positive shaft section, the positive shaft section having a first axis and the eccentric shaft section having a second axis, the first axis and the second axis being offset from each other and parallel;

[0007] A first hinge page assembly has a first hinge seat, the first hinge seat has a first rotating seat and a first mounting plate extending from the first rotating seat, the first rotating seat has a first shaft hole, and the connection between the first hinge page assembly and the rotating shaft is established by fitting the first shaft hole onto the positive shaft section of the rotating shaft;

[0008] The second hinge assembly includes a second hinge seat, an eccentric sleeve, and a positioning element. The second hinge seat has a second rotating seat and a second mounting plate extending from the second rotating seat. The second rotating seat has a second shaft hole. The eccentric sleeve has an internal socket hole and an external circumferential tube surface. The socket hole and the circumferential tube surface are eccentrically related. The eccentric sleeve is fitted onto the eccentric shaft section of the rotating shaft through the socket hole and can rotate relative to it. The diameter of the socket hole is the same as the outer diameter of the eccentric shaft section. The second rotating seat is fitted onto the circumferential tube surface of the eccentric sleeve through the second shaft hole. The diameter of the second shaft hole is the same as the outer diameter of the circumferential tube surface. The positioning element is detachably assembled onto the second rotating seat and connects the eccentric sleeve and the second rotating seat into one unit.

[0009] The above scheme is further described as follows: there are two sets of the second hinge page assembly, which are respectively arranged on both sides of the first hinge page assembly. The rotating shaft has two eccentric shaft segments, which extend outward from the two ends of the positive shaft segment in opposite directions, and the two eccentric shaft segments are on the same axis. The two sets of second hinge page assemblies are assembled corresponding to the two eccentric shaft segments, and the eccentric sleeve in each set of second hinge page assemblies can be independently rotated and adjusted relative to the eccentric shaft segment.

[0010] The above-mentioned solution further includes the following: one end of the eccentric sleeve is provided with an outwardly protruding annular platform, and the other end of the eccentric sleeve is provided with a positioning groove. The outwardly protruding annular platform is engaged with the corresponding end of the second rotating seat and covers the corresponding port of the second shaft hole, while the positioning groove is used to connect with the positioning component. The positioning component is in the form of a plug, with a cap-shaped retaining edge at one end and retaining teeth at the other end. The cap-shaped retaining edge is engaged with the corresponding end of the second rotating seat and covers the corresponding port of the second shaft hole. The retaining teeth are axially connected with the positioning groove of the eccentric sleeve in the second shaft hole to form a rotation limit. The inner circumferential wall of the second shaft hole is also provided with a positioning groove, which is used to position and connect with the positioning ribs preset on the positioning component, thereby realizing the limiting connection between the positioning component and the second rotating seat. Through the retaining teeth and the positioning groove, the eccentric sleeve and the second rotating seat are connected as one unit.

[0011] The above-described solution further includes a first support plate, a first inner plate, and a first cover plate. The first mounting plate of the first hinge seat has a first upper side, a first lower side, and a first elongated hole passing through the first upper side and the second lower side. The first support plate is adjustablely assembled on the first lower side of the first mounting plate, and the first support plate is provided with a first clearance hole, which is vertically connected to the first elongated hole. The first inner plate is positioned on the first support plate and located between the first support plate and the first mounting plate. The first inner plate is provided with a first mounting hole, which is connected to the first elongated hole and the first clearance hole. The first cover plate is assembled on the first upper side of the first mounting plate and covers the first elongated hole.

[0012] The above-described scheme further includes a second hinge assembly comprising a second support plate, a second inner plate, and a second cover plate. The second mounting plate of the second hinge seat has a second upper side, a second lower side, and a second elongated hole penetrating the second upper side and the second lower side. The second support plate is adjustablely assembled on the second lower side of the second mounting plate, and the second support plate is provided with a second clearance hole, which is vertically connected to the second elongated hole. The second inner plate is positioned on the second support plate and located between the second support plate and the second mounting plate. The second inner plate is provided with a second mounting hole, which is connected to the second elongated hole and the second clearance hole. The second cover plate is assembled on the second upper side of the second mounting plate and covers the second elongated hole.

[0013] A further aspect of the above scheme is that the axial orthographic projection of the eccentric shaft segment falls on the end face of the orthographic shaft segment and forms an inscribed circle relationship.

[0014] The above solution further includes a positioning ring groove on the outer periphery of the positive axis section, which, in conjunction with a positioning screw, restricts the axial position of the first hinge page assembly on the positive axis section; the first hinge page assembly is also locked by a first locking screw to stabilize the first hinge page assembly on the rotating shaft.

[0015] The above solution is further described as follows: the first tray is assembled in a drawer-like manner on the first lower side of the first mounting plate. A first supporting frame is provided on the first lower side. The first tray has outwardly flared first hanging edges on opposite sides. After the first tray is inserted into the first supporting frame, it is hung on the first supporting frame through the first hanging edges. The upper side of the first tray facing the first mounting plate has a recessed first receiving groove, and a first clearance hole and a first limiting groove are arranged in the first receiving groove. The first inner panel is embedded in the first receiving groove, and the lower side of the first inner panel has a downwardly protruding first boss and a limiting block. The first boss is embedded in the first clearance hole, and the limiting block is embedded in the first limiting groove. The first mounting hole penetrates the first boss in the vertical direction.

[0016] The above-mentioned solution is further described as follows: the second tray is assembled in a drawer-like manner on the second lower side of the second mounting plate. A second supporting frame is provided on the second lower side. The second tray has outwardly flared second hanging edges on opposite sides. After the second tray is inserted into the second supporting frame, it is hung on the second supporting frame through the second hanging edges. The upper side of the second tray facing the second mounting plate has a recessed second receiving groove, and a second clearance hole and a second limiting groove are arranged in the second receiving groove. The second inner plate is embedded in the second receiving groove, and the second inner plate has a second boss and a limiting block. The second boss is embedded in the second clearance hole, and the limiting block is embedded in the second limiting groove. The second mounting hole penetrates the second boss in the vertical direction.

[0017] The eccentric adjustment hinge provided by this invention has a central axis section and an eccentric axis section on the rotating shaft, and a first hinge leaf assembly and a second hinge leaf assembly are assembled thereon. Utilizing the misaligned eccentric relationship between the central axis section and the eccentric axis section, rotating the rotating shaft adjusts the positional relationship between the first and second hinge leaf assemblies. Furthermore, the second hinge leaf assembly is connected to the rotating shaft via an eccentric sleeve, which allows for further adjustment of the relative position of the second hinge leaf assembly. This invention primarily adjusts through eccentricity, featuring a simple structure, easy installation and use, and the ability to adjust the positional relationship between the first and second hinge leaf assemblies in multiple directions. This facilitates alignment and installation during construction, making it suitable for cabinet or box doors, especially for industrial refrigerators, test chambers, and other similar applications. Its convenient installation and adjustment meet the requirements for widespread industrial application. Attached Figure Description

[0018] AppendixFigure 1 This is a schematic diagram of an embodiment of the present invention;

[0019] Appendix Figure 2 for Figure 1 Schematic diagram of the structural breakdown of the embodiment;

[0020] Appendix Figure 3 for Figure 1 An exploded view of the structure of the first hinge page assembly in the embodiment;

[0021] Appendix Figure 4 for Figure 3 Another perspective structural diagram;

[0022] Appendix Figure 5 for Figure 4 A magnified schematic diagram of a local structure;

[0023] Appendix Figure 6 for Figure 1 An exploded view of the second hinge page assembly structure in the embodiment;

[0024] Appendix Figure 7 for Figure 6 Another perspective structural diagram;

[0025] Appendix Figure 8 for Figure 7 A magnified schematic diagram of a local structure;

[0026] Appendix Figure 9 for Figure 1 A schematic diagram of the rotating shaft structure in the embodiment;

[0027] Appendix Figure 10 for Figure 9 A schematic diagram of the side structure distribution of the rotating shaft. Detailed Implementation

[0028] The following will further explain the concept, specific structure, and technical effects of the present invention in conjunction with the accompanying drawings, so as to fully understand the purpose, features, and effects of the present invention.

[0029] It should be noted that in the description of this invention, the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate directional or positional relationships, are based on the directional or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] See Figures 1-10The diagram shown is a schematic diagram of a preferred embodiment of the present invention. The present invention relates to an eccentric adjustment hinge, which has a pivot 1, a first hinge page assembly 2 and a second hinge page assembly 3. The pivot 1 is provided with a positive shaft section 11 and an eccentric shaft section 12 extending from at least one end of the positive shaft section 11. The positive shaft section 11 has a first axis, and the eccentric shaft section 12 has a second axis. The first axis and the second axis are offset from each other and parallel. The first hinge assembly 2 has a first hinge seat 21, which has a first rotating seat 211 and a first mounting plate 212 extending from the first rotating seat 211. The first rotating seat 211 has a first shaft hole 213, which is fitted onto the main shaft section 11 of the rotating shaft 1 to establish the connection between the first hinge assembly 2 and the rotating shaft 1. Furthermore, in order to increase the assembly connection, the outer periphery of the main shaft section 11 is provided with a positioning ring groove 111, which, in conjunction with the positioning screw 4, restricts the axial position of the first hinge assembly 2 on the main shaft section. The first hinge assembly 2 is also locked by a first locking screw 51 to stabilize the first hinge assembly 2 on the rotating shaft 1. When adjustment is required, the first locking screw 51 can be loosened to realize the relative rotation adjustment between the first hinge assembly 2 and the rotating shaft 1. After adjustment, the first locking screw 51 can be tightened again. The second hinge assembly 3 includes a second hinge seat 31, an eccentric sleeve 32, and a positioning element 33. The second hinge seat 31 includes a second rotating seat 311 and a second mounting plate 312 extending from the second rotating seat 311. The second rotating seat 311 has a second shaft hole 313. The eccentric sleeve 32 has an inner sleeve hole 321 and an outer circumferential tube surface 322. The sleeve hole 321 and the circumferential tube surface 322 are eccentrically related. The eccentric sleeve 32 is sleeved on the rotating shaft through the sleeve hole 321. The first hinge assembly 2 and the second hinge assembly 3 are connected to different carriers, such as a door and a door frame, to achieve the opening and closing movement of the door relative to the door frame. The pivot shaft 1 has a positive shaft section and an eccentric shaft section, and the diameter of the sleeve hole 321 is consistent with the outer diameter of the eccentric shaft section 12. The second rotating seat 311 is sleeved on the circumferential tube surface 322 of the eccentric sleeve 32 through a second shaft hole 313, the diameter of the second shaft hole 313 being consistent with the outer diameter of the circumferential tube surface 322. The positioning member 33 is detachably assembled on the second rotating seat 311, connecting the eccentric sleeve 32 and the second rotating seat 311 into a single unit, and can rotate relative to the pivot shaft to achieve the hinge function. In use, the first hinge page assembly 2 and the second hinge page assembly 3 are distributed and connected to different carriers, such as a door body and a door frame, to achieve the opening and closing movement of the door body relative to the door frame. This is achieved by providing a positive shaft section and an eccentric shaft section on the pivot shaft 1, and assembling the first hinge page assembly 2 and the second hinge page assembly 3 respectively. During assembly, by utilizing the misaligned and eccentric relationship between the positive shaft section and the eccentric shaft section, rotating the pivot 1 can adjust the positional relationship between the first hinge page assembly 2 and the second hinge page assembly 3. Furthermore, the second hinge page assembly 3 is connected to the pivot 1 through the eccentric sleeve 32. The relative position of the second hinge page assembly can be further adjusted using the eccentric sleeve 32, thereby obtaining a better installation position and angle, achieving precise alignment and installation of the hinge, and ensuring the tightness and aesthetics between the door body and the door frame.

[0031] Figures 1-10 As shown, in this embodiment, there are two sets of the second hinge page assembly 3, respectively arranged on both sides of the first hinge page assembly 2. The rotating shaft 1 has two eccentric shaft segments 12, which extend outward from both ends of the positive shaft segment 11 in opposite directions, and the two eccentric shaft segments 12 are on the same axis. The two sets of second hinge page assemblies 3 are assembled corresponding to the two eccentric shaft segments 12, and the eccentric sleeve 32 in each set of second hinge page assemblies 3 can be independently rotated and adjusted relative to the eccentric shaft segment 12. This structure improves the symmetry of the hinge, provides better force distribution during assembly, and enhances the practicality of the hinge. Each set of second hinge page assemblies 3 can be adjusted independently, which is beneficial for construction alignment and convenient assembly and installation. In this embodiment, the axial orthographic projection of the eccentric shaft segment 12 falls on the end face of the positive shaft segment 11 and forms an inscribed circle relationship. The structure is reasonable, easy to process and manufacture, and can obtain a large adjustment range, which is beneficial for hinge construction alignment. Figure 9 , 10 As shown, in order to facilitate the rotation of the rotating shaft 1, a corresponding slot or cross slot is made on one end of the rotating shaft so that a screwdriver or other tools can be used to drive the rotating shaft to rotate.

[0032] In this embodiment, one end of the eccentric sleeve 32 is provided with an outwardly protruding annular platform 323, and the other end of the eccentric sleeve 32 is provided with a positioning groove 324. The outwardly protruding annular platform 323 is engaged with the corresponding end of the second rotating seat 311 and covers the corresponding port of the second shaft hole 313, while the positioning groove 324 is used to connect with the positioning member 33. The positioning member 33 is in the form of a plug. One end of the positioning member 33 is provided with a cap-shaped retaining edge 331, and the other end of the positioning member 33 is provided with retaining teeth 332. The cap-shaped retaining edge 331 is engaged with the corresponding end of the second rotating seat 311 and covers the corresponding port of the second shaft hole 313. The cap-shaped retaining edge 331 and the outwardly protruding annular platform 323 respectively cover the two ports of the second shaft hole 313, which serves to limit positioning and provide dust protection. The locking tooth 332 is axially connected to the positioning groove 324 of the eccentric sleeve 32 in the second shaft hole 313; the inner peripheral wall of the second shaft hole 313 is also provided with a positioning groove 3131, which is used to position and connect with the positioning rib 333 preset on the positioning component 33, thereby realizing the integration of the second hinge seat 31, the eccentric sleeve 32 and the positioning component 33. This structure is simple and convenient for disassembly and maintenance. In this embodiment, four positioning grooves 324 are evenly arranged around the end of the eccentric sleeve, and the angle between two adjacent positioning grooves 324 is 90°. In this way, the eccentric sleeve 32 can be rotated and adjusted at 90° angles, so that the second hinge assembly 3 can be adjusted in multiple stages. In this embodiment, in order to facilitate the operation of rotating the eccentric sleeve 32, teeth are added to the outer convex ring platform 323 so that the eccentric sleeve 32 can be rotated by hand or other means, making adjustment simple.

[0033] In this embodiment, the first hinge assembly 2 further includes a first support plate 22, a first inner plate 23, and a first cover plate 24. The first mounting plate 212 of the first hinge base 21 has a first upper side surface 2121, a first lower side surface 2122, and a first elongated hole 2123 passing through the first upper side surface and the second lower side surface. The first support plate 22 is adjustablely assembled on the first lower side surface 2122 of the first mounting plate 212, and the first support plate 22 is provided with a first clearance hole 221, which is vertically connected to the first elongated hole 2123. The first inner plate 23 is positioned on the first support plate 22 and located between the first support plate 22 and the first mounting plate 212. The first inner plate 23 is provided with a first mounting hole 231, which communicates with the first elongated hole 2123 and the first clearance hole 221. During installation, the locking screws fix the first hinge assembly 2 to the corresponding carrier through the first mounting hole 231, the first elongated hole 2123 and the first clearance hole 221. The structure of the first elongated hole 2123 and the adjustable assembly of the first support plate 22 can also provide adjustment and alignment of the locking screws, improving the ease of installation. The first cover plate 24 is assembled on the first upper side 2121 of the first mounting plate 212 and covers the first elongated hole 2123 for protection. In this embodiment, the first cover plate 24 adopts a side-sliding assembly. A groove is provided on the first upper side 2121, and corresponding ribs are provided on the first cover plate 24 at the groove location to facilitate alignment and sliding assembly. The first cover plate 24 is then locked in place by the second locking screw 52 to stabilize it on the first mounting plate 212. When opening is required, the second locking screw 52 can be loosened, allowing the first cover plate 24 to be pushed out from the first mounting plate 212, exposing the first elongated hole 2123. This allows for the removal and installation of the corresponding locking screws, enabling the installation or removal of the first hinge assembly 2 from the carrier. After the operation is completed, the first cover plate 24 is re-aligned and slid in for assembly, and then the second locking screw 52 is tightened. The structure is simple and convenient for hinge installation.

[0034] In this embodiment, the first tray 22 is assembled in a drawer-like manner on the first lower side 2122 of the first mounting plate 212. A first support frame 2124 is provided on the first lower side 2122. The first tray 22 has outwardly flared first hanging edges 222 on opposite sides. After the first tray 22 is inserted into the first support frame 2124, it is hung on the first support frame 2124 through the first hanging edges 222. The upper side of the first tray 22 facing the first mounting plate 212 has a recessed first receiving groove 223, and a first clearance hole 221 and a first limiting hole are arranged in the first receiving groove 223. The first inner plate 23 is embedded in the first receiving groove 224, and the lower side of the first inner plate 23 is provided with a downwardly protruding first boss 232 and a limiting block 233. The first mounting hole 231 penetrates the first boss 232 in the vertical direction. During assembly, the first boss 232 is embedded in the first clearance hole 221, and the limiting block 233 is embedded in the first limiting groove 224 to obtain multi-directional limiting and increase the structural integrity of the combination. In this embodiment, a rack and pinion groove is also added between the inner bottom surface of the first inner plate 23 and the first receiving groove 223 to increase the engagement and make the assembly of the first inner plate 23 stable. This embodiment adopts a multi-layer composite structure, which is beneficial for the separate manufacture of the first hinge seat 21, the first support plate 22, and the first inner plate 23. Different materials can be used to manufacture them. For example, the first inner plate 23 can be made of insulating material to increase the insulation and usability of the hinge and meet the needs of different occasions.

[0035] In this embodiment, the second hinge assembly 3 further includes a second support plate 34, a second inner plate 35, and a second cover plate 36. The second mounting plate 312 of the second hinge base 31 has a second upper side surface 3121, a second lower side surface 3122, and a second elongated hole 3123 penetrating the second upper side surface and the second lower side surface. The second support plate 34 is adjustablely assembled on the second lower side surface 3122 of the second mounting plate 312, and the second support plate 34 is provided with a second clearance hole 341, which is vertically connected to the second elongated hole 3123. The second inner plate 35 is positioned on the second support plate 34 and located between the second support plate 34 and the second mounting plate 312. The second inner plate 35 is provided with a second mounting hole 351, which is connected to the second elongated hole 3123 and the second clearance hole 341. The second cover plate 36 is assembled on the second upper side surface 3121 of the second mounting plate 312 and covers the second elongated hole 3123 for protection. In this embodiment, the second cover plate 36 adopts a side-sliding assembly. A groove is provided on the second upper side 3121, and corresponding ribs are provided on the second cover plate 36 at the groove location to facilitate alignment and sliding assembly. The second cover plate 36 is then locked in place by a third locking screw 53 to stabilize it on the second mounting plate 312. When opening is required, the third locking screw 53 can be loosened, allowing the second cover plate to be pushed out of the second mounting plate 312, exposing the second elongated hole 3123. This allows for the removal and installation of the corresponding locking screws, enabling the installation or removal of the second hinge assembly 3 from the carrier. After the operation is completed, the second cover plate is re-aligned and slid in for assembly, and then the third locking screw 53 is tightened again. The structure is simple and convenient for hinge installation. Furthermore, the second tray 34 is assembled in a drawer-like manner on the second lower side 3122 of the second mounting plate 312. The second lower side 3122 is provided with a second support frame 3124. The opposite sides of the second tray 34 are provided with outwardly flared second hanging edges 342. After the second tray 34 is inserted into the second support frame 3124, it is hung on the second support frame 3124 through the second hanging edges 342. The upper side of the second tray 34 facing the second mounting plate 312 is provided with a recessed second receiving groove 343, and a second clearance hole 341 and a second limiting groove 344 are arranged in the second receiving groove 343. The second inner plate 35 is embedded in the second receiving groove 343, and the second inner plate 35 is provided with a second boss 352 and a limiting block 353. The second mounting hole 351 penetrates the second boss 352 in the vertical direction. During assembly, the second boss 352 is embedded in the second clearance hole 341, and the limiting block 353 is embedded in the second limiting groove 344 to obtain multi-directional limiting and increase the structural integrity of the combination. In this embodiment, a rack and tooth groove is also added between the inner bottom surface of the second inner plate 35 and the second receiving groove 343 to increase the engagement and make the assembly of the second inner plate stable.This embodiment adopts a multi-layer composite structure, which facilitates the separate fabrication of the second hinge seat 31, the second support plate 34, and the second inner plate 35. Different materials can be used for fabrication. For example, the second inner plate can be made of insulating material to increase the insulation and usability of the hinge and meet the needs of different occasions.

[0036] The eccentric adjustment hinge provided by this invention has a central axis section and an eccentric axis section on the rotating shaft, and a first hinge leaf assembly and a second hinge leaf assembly are assembled thereon. Utilizing the misaligned eccentric relationship between the central axis section and the eccentric axis section, rotating the rotating shaft adjusts the positional relationship between the first and second hinge leaf assemblies. Furthermore, the second hinge leaf assembly is connected to the rotating shaft via an eccentric sleeve, which allows for further adjustment of the relative position of the second hinge leaf assembly. This invention primarily adjusts through eccentricity, featuring a simple structure, easy installation and use, and the ability to adjust the positional relationship between the first and second hinge leaf assemblies in multiple directions. This facilitates alignment and installation during construction, making it suitable for cabinet or box doors, especially for industrial refrigerators, test chambers, and other similar applications. Its convenient installation and adjustment meet the requirements for widespread industrial application.

[0037] Of course, the above detailed description of the present invention in conjunction with the embodiments is only for illustrating the technical concept and features of the present invention. Its purpose is to enable those skilled in the art to understand the content of the present invention and implement it. Therefore, all equivalent changes or modifications made in accordance with the spirit and essence of the present invention should be covered within the protection scope of the present invention.

Claims

1. An eccentric adjusting hinge, characterized in that, have: A rotating shaft (1) is provided with a positive shaft section (11) and an eccentric shaft section (12) extending from at least one end of the positive shaft section (11). The positive shaft section (11) has a first axis, and the eccentric shaft section (12) has a second axis. The first axis and the second axis are offset from each other and parallel. The first hinge assembly (2) has a first hinge seat (21), the first hinge seat (21) has a first rotating seat (211) and a first mounting plate (212) extending from the first rotating seat (211). The first rotating seat (211) has a first shaft hole (213), and the connection between the first hinge assembly (2) and the rotating shaft (1) is established by fitting the first shaft hole (213) onto the positive shaft section (11) of the rotating shaft (1). The second hinge assembly (3) has a second hinge seat (31), an eccentric sleeve (32), and a positioning element (33). The second hinge seat (31) has a second rotating seat (311) and a second mounting plate (312) extending from the second rotating seat (311). The second rotating seat (311) has a second shaft hole (313). The eccentric sleeve (32) has an inner socket hole (321) and an outer circumferential tube surface (322). The socket hole (321) and the circumferential tube surface (322) are eccentrically related. 2) The sleeve is fitted onto the eccentric shaft section (12) of the rotating shaft (1) through the sleeve hole (321) and can rotate relative to it. The diameter of the sleeve hole (321) is consistent with the outer diameter of the eccentric shaft section (12). The second rotating seat (311) is fitted onto the circumferential tube surface (322) of the eccentric sleeve (32) through the second shaft hole (313). The diameter of the second shaft hole (313) is consistent with the outer diameter of the circumferential tube surface (322). The positioning element (33) is detachably assembled on the second rotating seat (311) and the eccentric sleeve (32) and the second rotating seat (311) are connected as one unit. The eccentric sleeve (32) is provided with a positioning groove (324), and the positioning member (33) is provided with a retaining tooth (332), which is axially connected to the positioning groove (324); The first hinge assembly (2) also has a first support plate (22), a first inner plate (23), and a first cover plate (24). The first mounting plate (212) of the first hinge base (21) has a first upper side (2121), a first lower side (2122), and a first elongated hole (2123) penetrating the first upper side and the second lower side. The first support plate (22) is adjustablely assembled on the first lower side (2122) of the first mounting plate (212), and the first support plate (22) is provided with a first clearance hole (221). The clearance hole (221) and the first elongated hole (2123) are vertically connected; the first inner plate (23) is positioned on the first support plate (22) and located between the first support plate (22) and the first mounting plate (212). The first inner plate (23) is provided with a first mounting hole (231), which is connected to the first elongated hole (2123) and the first clearance hole (221); the first cover plate (24) is assembled on the first upper side (2121) of the first mounting plate (212) and covers the first elongated hole (2123).

2. The eccentric adjusting hinge according to claim 1, characterized in that, There are two sets of the second hinge page assembly (3), which are respectively arranged on both sides of the first hinge page assembly (2). The rotating shaft (1) has two eccentric shaft segments (12). The two eccentric shaft segments (12) extend outward from the two ends of the positive shaft segment (11) in opposite directions, and the two eccentric shaft segments (12) are on the same axis. The two sets of second hinge page assemblies (3) are assembled corresponding to the two eccentric shaft segments (12). The eccentric sleeve (32) in each set of second hinge page assemblies (3) can be independently rotated and adjusted relative to the eccentric shaft segment (12).

3. The eccentric adjusting hinge according to claim 1 or 2, characterized in that, One end of the eccentric sleeve (32) is provided with an externally protruding annular platform (323), and the other end of the eccentric sleeve (32) is provided with a positioning groove (324). The externally protruding annular platform (323) is engaged with the corresponding end of the second rotating seat (311) and covers the corresponding port of the second shaft hole (313), while the positioning groove (324) is used to connect with the positioning member (33). The positioning member (33) is in the form of a plug. One end of the positioning member (33) is provided with a cap-type retaining edge (331), and the other end of the positioning member (33) is provided with a cap-type retaining edge (331). The end is provided with a locking tooth (332), and the cap-shaped locking edge (331) is locked onto the corresponding end of the second rotating seat (311) and covers the corresponding port of the second shaft hole (313). The locking tooth (332) is axially connected to the positioning tooth groove (324) of the eccentric sleeve (32) in the second shaft hole (313). The inner peripheral wall of the second shaft hole (313) is also provided with a positioning groove (3131), which is used to position and connect with the positioning rib (333) preset on the positioning member (33).

4. The eccentric adjusting hinge according to claim 1 or 2, characterized in that, The second hinge assembly (3) also has a second support plate (34), a second inner plate (35), and a second cover plate (36). The second mounting plate (312) of the second hinge seat (31) has a second upper side (3121), a second lower side (3122), and a second elongated hole (3123) passing through the second upper side and the second lower side. The second support plate (34) is adjustablely assembled on the second lower side (3122) of the second mounting plate (312), and the second support plate (34) is provided with a second clearance hole (341). The clearance hole (341) and the second elongated hole (3123) are vertically connected; the second inner plate (35) is positioned on the second support plate (34) and located between the second support plate (34) and the second mounting plate (312). The second inner plate (35) is provided with a second mounting hole (351), which is connected to the second elongated hole (3123) and the second clearance hole (341); the second cover plate (36) is assembled on the second upper side (3121) of the second mounting plate (312) and covers the second elongated hole (3123).

5. The eccentric adjusting hinge according to claim 1 or 2, characterized in that, The axial orthographic projection of the eccentric shaft segment (12) falls on the end face of the orthographic shaft segment (11) and forms an inscribed circle relationship.

6. The eccentric adjusting hinge according to claim 1 or 2, characterized in that, The outer periphery of the positive axis section (11) is provided with a positioning ring groove (111), which, in conjunction with the positioning screw (4), restricts the axial position of the first hinge page assembly (2) on the positive axis section; the first hinge page assembly (2) is also locked by the first locking screw (51) to stabilize the first hinge page assembly (2) on the rotating shaft (1).

7. The eccentric adjusting hinge according to claim 1, characterized in that, The first tray (22) is assembled in a drawer-like manner on the first lower side (2122) of the first mounting plate (212). The first lower side (2122) is provided with a first support frame (2124). The first tray (22) has outwardly flared first hanging edges (222) on opposite sides. After the first tray (22) is inserted into the first support frame (2124), it is hung on the first support frame (2124) through the first hanging edges (222). The upper side of the first tray (22) facing the first mounting plate (212) is provided with a recessed first receiving groove. (223), and a first clearance hole (221) and a first limiting groove (224) are provided in the first receiving groove (223). The first inner plate (23) is embedded in the first receiving groove (223), and the lower side of the first inner plate (23) is provided with a downward protruding first boss (232) and a first limiting block (233). The first boss (232) is embedded in the first clearance hole (221), and the first limiting block (233) is embedded in the first limiting groove (224). The first mounting hole (231) passes through the first boss (232) in the vertical direction.

8. The eccentric adjusting hinge according to claim 4, characterized in that, The second tray (34) is assembled in a drawer-like manner on the second lower side (3122) of the second mounting plate (312). A second support frame (3124) is provided on the second lower side (3122). The second tray (34) has outwardly flared second hanging edges (342) on opposite sides. After the second tray (34) is inserted into the second support frame (3124), it is hung on the second support frame (3124) through the second hanging edges (342). The upper side of the second tray (34) facing the second mounting plate (312) has a concave first... The second receiving slot (343) is provided with a second clearance hole (341) and a second limiting slot (344). The second inner plate (35) is embedded in the second receiving slot (343), and the second inner plate (35) is provided with a second boss (352) and a second limiting block (353). The second boss (352) is embedded in the second clearance hole (341), and the second limiting block (353) is embedded in the second limiting slot (344). The second mounting hole (351) passes through the second boss (352) in the vertical direction.

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