Double-rotating-shaft hinge structure and application of double-rotating-shaft hinge structure in sealing door assembly

Abstract

The invention discloses a double-rotating-shaft hinge structure and application of the double-rotating-shaft hinge structure in sealing door assembly, and relates to the technical field of sealing door hinges, the double-rotating-shaft hinge structure comprises a hinge, a main hinge base and an auxiliary hinge base, a U-shaped groove is formed in one end of the hinge, one end of the main hinge base is hinged into the U-shaped groove through a main pin shaft, and the other end of the main hinge base is hinged into the auxiliary hinge base; the other end of the hinge is hinged to the end of an auxiliary hinge base through an auxiliary pin shaft, the main pin shaft and the auxiliary pin shaft are sleeved with rubber sleeves, fixing holes are formed in the main hinge base and the auxiliary hinge base, a base plate is arranged on one side of the auxiliary hinge base, a baffle is arranged on the side, away from the base plate, of the main hinge base, and the baffle is connected with the main hinge base. The sealing door can be easily closed, the sealing door still has good sealing performance after the hinge and the sealing strip are abraded, and in addition, when the sealing door is sucked by internal negative pressure or the sealing strip is aged and consequently the sealing door is difficult to open, the sealing door can be easily opened.

Description

Technical Field

[0001] The invention relates to the technical field of sealed door hinges, in particular to a double-rotating-axis hinge structure and application thereof in sealed door assembly. Background Art

[0002] Sealed doors are widely used in various places that require high sealing properties, such as laboratories, clean rooms, cold storages, radiation protection rooms, and underwater facilities. This is usually achieved through special sealing materials and precise door frame design. When the door is closed, the door frame sealing strip will fit tightly against the door, thereby preventing external fluids or particles from entering the room. Among them, the hinge used to connect the sealing door and the door frame plays an important role in the sealing effect of the sealed door.

[0003] Chinese patent application number 2018103187588 discloses a dual-axis multi-fold hinge, including a bending leaf, a rotating leaf, a first rotating shaft and a second rotating shaft. The first rotating shaft of the bending leaf is hinged to the door frame, and the rotating leaf is hinged to the bending leaf through the second rotating shaft. One side of the rotating leaf is a fixed surface, which is fitted and fixed to the side of the door, and the other side is a fitting surface. A detachable fixing structure is provided between the bending leaf and the rotating leaf. The detachable fixing structure can make the fitting surface of the rotating leaf and the back side of the bending leaf along the door opening direction fit together or separate from each other so that they can rotate relatively freely around the second rotating shaft. However, due to the limitation of the hinge, when the sealed door is used, due to the back pressure of the sealing strip on the side of the door frame, the closing force required to close the door is large, and the door is not easy to close.

[0004] Moreover, after the sealed door has been used for a long time, the gap between the components will increase due to the wear of the hinges, affecting the sealing of the sealed door, and the wear of the sealing strip will also reduce the sealing of the sealed door. In addition, it cannot be adjusted according to the thickness of the sealing strip, and the scope of use is limited. In addition, after some sealed doors have been used for a long time, the negative pressure in the internal space and the aging of the sealing strip make the door difficult to open. Summary of the invention

[0005] The technical problem to be solved by the present invention is to overcome the existing defects and provide a double-axis hinge structure and its application in the assembly of a sealed door, which can easily close the sealed door and ensure that the sealed door still has good sealing after the hinge and the sealing strip are worn. In addition, when the sealed door is sucked in by the internal negative pressure or the sealing strip is aged and becomes difficult to open, the sealed door can be easily opened, which can effectively solve the problems in the background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a double-rotating-axis hinge structure, comprising a hinge, a main hinge seat and a secondary hinge seat, wherein one end of the hinge is provided with a U-shaped groove, one end of the main hinge seat is hinged in the U-shaped groove through a main pin shaft, and the other end of the hinge is hinged to the end of the secondary hinge seat through a secondary pin shaft, the outsides of the main pin shaft and the secondary pin shaft are both sleeved with rubber sleeves, the main hinge seat and the secondary hinge seat are both provided with fixing holes, a pad is provided on one side of the secondary hinge seat, and a baffle is provided on the side of the main hinge seat away from the pad, wherein the end of the baffle passes over the end surface of the U-shaped groove;

[0007] An auxiliary unit and a driving unit are provided on the side of the hinge close to the main hinge seat, the auxiliary unit is used to provide auxiliary force to the main hinge seat, and the driving unit is used to drive the auxiliary unit to move. An adjustment unit is provided on the side of the hinge close to the secondary hinge seat, and the adjustment unit is used to adjust the position of the hinge.

[0008] Furthermore, the auxiliary unit includes an installation groove and a transmission groove, the installation groove is opened on the end face of the U-shaped groove, the transmission groove is opened on the side face of the hinge, the installation groove and the transmission groove are connected to each other, a rotating frame is provided in the installation groove, the upper and lower end faces of the rotating frame are both provided with guide grooves, a slider is slidably connected in the guide groove, and an elastic sheet is provided between the side face of the slider and the inner side face of the guide groove.

[0009] Furthermore, a rotating rod passes through the upper and lower end surfaces of the installation groove, and the opposite ends of the upper and lower rotating rods are fixedly connected to the sliders on the upper and lower sides respectively. A magnetic seat is provided inside the rotating frame, and a permanent magnet is provided on the side of the main hinge seat.

[0010] Furthermore, a linkage gear is movably sleeved on the outer side of the rotating rod, a limit spring is sleeved on the rotating rod at a position between the linkage gear and the hinge side, and a nut is threadedly connected to the outer end of the rotating rod.

[0011] Furthermore, the driving unit includes a wedge-shaped seat and a wedge block, and two wedge-shaped seats are correspondingly provided. The two wedge-shaped seats are respectively arranged on both sides of the rotating frame, and the wedge surfaces of the two wedge seats are staggered. The wedge seat is arranged on the side of the rotating frame through the frame seat, and the wedge block cooperates with the wedge surface of the wedge seat close to the transmission groove. A stud passes through the middle part of the wedge block and is threadedly connected, and the end of the stud is arranged on the side of the hinge through a support connected in rotation, and a telescopic rod is provided between the support and the wedge block.

[0012] Furthermore, the adjustment unit includes a square groove, in which a square tube is slidably connected, a threaded tube is provided on the side of the square tube, a screw is connected to the internal thread of the threaded tube, one end of the screw is rotatably connected to the side of the square groove, and the end of the screw extends into the transmission groove.

[0013] Furthermore, a worm wheel is provided at the end of the screw, a worm is meshed on the outside of the worm wheel, a fixed seat to which the worm is rotatably connected at the end is arranged on the surface of the hinge, a driving gear is fixedly sleeved on one side of the worm, and an adjustment cap is provided at the end of the worm.

[0014] Furthermore, the main hinge seat is fixedly connected to the door body via fasteners, the auxiliary hinge seat is fixedly connected to the door frame via fasteners, and a sealing strip is provided on the side of the door frame.

[0015] The present invention also provides an application of the double-rotating-axis hinge structure as described above in the assembly of a sealed door.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention fixes the door body with the main hinge seat, and fixes the secondary hinge seat with the door frame. When the door body is closed, the sealing strip generates a reaction force on the door body, and then the main hinge seat, hinge and secondary hinge seat generate relative rotation through the main pin shaft and the secondary pin shaft, thereby removing the reaction force of the sealing strip on the door body, so as to realize easy closure of the door body and the door frame.

[0018] 2. When the sealing strip and the door body are difficult to seal, the present invention rotates the stud to make the wedge block drive the wedge seat to drive the rotating frame to move to one side of the main hinge seat, thereby reducing the distance between the magnetic seat and the permanent magnet and enhancing the magnetic attraction between the magnetic seat and the permanent magnet, so that the door body is close to the sealing strip on the side of the door frame, thereby improving the sealing performance.

[0019] 3. When the thickness of the sealing strip is relatively thin, the present invention drives the screw to rotate by rotating the worm through the worm gear, and the screw drives the hinge to approach the auxiliary hinge seat, so as to drive the door body to approach the door frame, so that the door body and the sealing strip fit together and compensate for the thickness of the sealing strip. When the sealing strip is relatively thin, the door body and the door frame can be sealed to ensure the sealing performance.

[0020] 4. When the door body is difficult to open, the present invention first moves the wedge block away from the wedge seat, and the rotating rod is rotated to flip the rotating frame 180 degrees, so that the magnetic seat and the permanent magnet become magnetic repulsion, and then the linkage gear is meshed with the driving gear. The worm is rotated forward and backward to make the worm and the rotating rod rotate forward and backward at the same time. When the rotating rod rotates forward and backward, the magnetic repulsion between the magnetic seat and the permanent magnet fluctuates repeatedly, so that the main hinge seat drives the door body to vibrate slightly. The forward and reverse rotation of the worm drives the main hinge seat to reciprocate through the hinge through the screw and the threaded barrel, so that the door body can reciprocate slightly, and the door body can be opened quickly by coordinating with the slight vibration of the door body. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the present invention;

[0022] Figure 2 It is a structural schematic diagram of another angle of the present invention;

[0023] Figure 3 It is a schematic diagram of the cross-sectional structure of the present invention;

[0024] Figure 4 For the present invention Figure 3 The enlarged structural diagram at A in the middle;

[0025] Figure 5 This is a schematic diagram of the positional relationship between the auxiliary unit and the driving unit of the present invention;

[0026] Figure 6 It is a schematic diagram of the horizontal placement structure of the present invention;

[0027] Figure 7 This is a schematic diagram of the structure of the present invention in use state;

[0028] Figure 8 It is a schematic diagram of the assembly structure of the present invention;

[0029] Fig. 9 This is a schematic diagram of the structure from another angle when the present invention is in use.

[0030] In the figure: 1. hinge; 101. main hinge seat; 102. secondary hinge seat; 103. pad; 104. baffle; 2. auxiliary unit; 201. mounting slot; 202. transmission slot; 203. rotating frame; 204. guide slot; 205. slider; 206. elastic sheet; 207. rotating rod; 208. magnetic seat; 209. permanent magnet; 210. linkage gear; 211. limit spring; 212. nut; 3 , drive unit; 301, frame seat; 302, wedge seat; 303, support; 304, stud; 305, wedge block; 306, telescopic rod; 4, adjustment unit; 401, square slot; 402, square tube; 403, threaded tube; 404, screw; 405, worm gear; 406, worm; 407, fixed seat; 408, drive gear; 409, adjustment cap; 5, door frame; 6, door body; 7, sealing strip. DETAILED DESCRIPTION

[0031] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0032] See also Figure 1-9 The embodiment of the present invention provides a double-axis hinge structure, including a hinge 1, a main hinge seat 101 and a secondary hinge seat 102. A U-shaped groove is provided at one end of the hinge 1. One end of the main hinge seat 101 is hinged in the U-shaped groove through a main pin shaft. The other end of the hinge 1 is hinged to the end of the secondary hinge seat 102 through a secondary pin shaft. The outsides of the main pin shaft and the secondary pin shaft are both sleeved with rubber sleeves to reduce wear and extend the service life. Fixing holes are provided on the main hinge seat 101 and the secondary hinge seat 102, and fasteners are matched in the fixing holes. A pad 103 is provided on one side of the secondary hinge seat 102, and the pad 103 is preferably made of rubber material. A baffle 104 is provided on the side of the main hinge seat 101 away from the pad 103. The baffle 104, the end of the baffle 104 passes over the end face of the U-shaped groove, and the baffle 104 is used to limit the rotation angle of the main hinge seat 101 to limit the opening and closing angle of the door body 6.

[0033] When the double-axis hinge structure is used in the sealed door assembly, the main hinge seat 101 is fixedly connected to the door body 6 by fasteners, and the secondary hinge seat 102 is fixedly connected to the door frame 5 by fasteners. The side of the door frame 5 is provided with a sealing strip 7, that is, the main hinge seat 101 and the secondary hinge seat 102 are respectively fixed to the outside of the door body 6 and the door frame 5. Figure 8As shown, during the process of the door body 6 rotating and cooperating with the door frame 5, the door body 6 will squeeze the sealing strip 7, and the sealing strip 7 is made of elastic material, so the sealing strip 7 will exert a reaction force on the door body 6, resulting in the difficulty of the door body 6 to cooperate closely with the door frame 5. After adopting the double-axis hinge structure as mentioned above, when the sealing strip 7 exerts a reaction force on the door body 6, the main hinge seat 101 and the hinge 1, as well as the secondary hinge seat 102 and the hinge 1, respectively generate relative rotational motion through the main pin shaft and the secondary pin shaft, thereby offsetting the reaction force generated by the sealing strip 7 on the door body 6, and easily achieving the tight closing of the door body 6 and the door frame 5. During this process, there may be a slight misalignment between the door body 6 and the door frame 5. At this time, the locking device between the door body 6 and the door frame 5 can be used to tighten and correct the misalignment.

[0034] However, after long-term use, due to the wear of components and sealing strips, the fit between the sealing strip 7 and the door body 6 deteriorates, resulting in reduced sealing effect of the sealing strip 7, affecting the sealing of the internal space. In order to solve the above problem:

[0035] An auxiliary unit 2 and a driving unit 3 are provided on one side of the hinge 1 close to the main hinge seat 101 . The auxiliary unit 2 is used to provide auxiliary force to the main hinge seat 101 , and the driving unit 3 is used to drive the auxiliary unit 2 to move.

[0036] The auxiliary unit 2 includes a mounting groove 201 and a transmission groove 202. The mounting groove 201 is opened on the end face of the U-shaped groove, and the transmission groove 202 is opened on the side face of the hinge 1. The mounting groove 201 and the transmission groove 202 are connected to each other. A rotating frame 203 is arranged in the mounting groove 201. The upper and lower end faces of the rotating frame 203 are both provided with guide grooves 204. A slider 205 is slidably connected in the guide groove 204. Both the slider 205 and the guide groove 204 are prismatic structures. An elastic sheet 206 is arranged between the side face of the slider 205 and the inner side face of the guide groove 204. The cooperation between the slider 205 and the guide groove 204 enables the rotating frame 203 to slide linearly along the slider 205, and the elastic sheet 206 is elastically deformed to adjust the distance between the magnetic seat 208 and the permanent magnet 209.

[0037] A magnetic seat 208 is provided inside the rotating frame 203, and a permanent magnet 209 is provided on the side of the main hinge seat 101. In the initial state, after the sealing door is closed, the magnetic seat 208 and the permanent magnet 209 correspond to each other, and there is magnetic attraction between the magnetic seat 208 and the permanent magnet 209.

[0038] The driving unit 3 includes a wedge seat 302 and a wedge block 305. The wedge seat 302 is arranged on the side of the rotating frame 203 through the frame seat 301. The wedge block 305 cooperates with the wedge surface of the wedge seat 302 close to the transmission groove 202. A stud 304 passes through the middle of the wedge block 305 and is threadedly connected. The end of the stud 304 is arranged on the side of the hinge 1 through a support 303 that is rotatably connected. A telescopic rod 306 is provided between the support 303 and the wedge block 305. By rotating the stud 304, the linear motion of the wedge block 305 is realized under the limiting action of the telescopic rod 306. The wedge block 305 cooperates with the wedge seat 302 and utilizes the cooperation of the guide groove 204 and the slider 205 to realize the linear motion of the rotating frame 203.

[0039] When the main hinge base 101 and the auxiliary hinge base 102 are in the state as shown in FIG. Figure 7-9 In the state shown, when the user finds that the sealing strip 7 cannot fit tightly against the door body 6, the user drives the wedge block 305 to move linearly by rotating the stud 304. The wedge block 305 drives the rotating frame 203 to move horizontally toward the side close to the main hinge seat 101 by cooperating with the wedge seat 302. Relative movement occurs between the slider 205 and the guide groove 204, and the elastic sheet 206 is compressed, so that the magnetic seat 208 is close to the main hinge seat 101, thereby reducing the distance between the magnetic seat 208 and the permanent magnet 209, increasing the magnetic attraction between the magnetic seat 208 and the permanent magnet 209, and thus increasing the adsorption force on the main hinge seat 101, so that the door body 6 connected to the main hinge seat 101 is close to the sealing strip 7 on the side of the door frame 5, thereby improving the sealing effect, and the distance between the magnetic seat 208 and the permanent magnet 209 can be adjusted independently according to actual conditions.

[0040] In addition, when the thickness of the sealing gasket 7 is relatively thin or relatively thick, the double-shaft hinge structure cannot achieve airtightness between the door body 6 and the door frame 5, so the following improvements are made:

[0041] An adjusting unit 4 is provided on one side of the hinge 1 close to the auxiliary hinge seat 102 , and the adjusting unit 4 is used to adjust the position of the hinge 1 .

[0042] The adjusting unit 4 includes a square groove 401, in which a square tube 402 is slidably connected. The cross section of the square tube 402 is a square structure, and the middle hole of the square tube 402 is a circular structure, and the aperture of the middle hole is the same as the aperture of the pin hole on the secondary hinge seat 102 that cooperates with the secondary pin shaft. A threaded tube 403 is provided on the side of the square tube 402, and the internal thread of the threaded tube 403 is connected to a screw 404, one end of the screw 404 is rotatably connected to the side of the square groove 401, and the end of the screw 404 extends into the transmission groove 202. Due to the cooperation between the square tube 402 and the square groove 401, and the secondary hinge seat 102 is connected to the door frame 5, when the screw 404 rotates, the screw 404 tends to move toward the inside of the threaded tube 403, which will drive the hinge 1 to move slightly toward the secondary hinge seat 102.

[0043] A worm wheel 405 is provided at the end of the screw rod 404, and a worm 406 is meshed on the outside of the worm wheel 405. A fixed seat 407 to which the worm 406 is rotatably connected at the end is provided on the surface of the hinge 1. An adjusting cap 409 is provided at the end of the worm 406. A cross groove that cooperates with the end of a cross screwdriver is provided on the end face of the rotating adjusting cap 409. The worm wheel 405 is driven to rotate by rotating the adjusting cap 409, and the worm wheel 405 is meshed with the worm 406 to drive the screw rod 404 to rotate.

[0044] In such Figure 8 In the state shown, when the sealing strip 7 is thin, there will be a gap between the door body 6 and the sealing strip 7. At this time, the adjusting cap 409 is rotated by a cross screwdriver to drive the worm 406 to rotate. The worm 406 drives the screw 404 to rotate by engaging with the worm wheel 405. Since the secondary pin shaft passes through the secondary hinge seat 102 and the square tube 402, and the secondary hinge seat 102 is fixed to the door frame 5, the rotation of the screw 404 will drive the hinge 1 and the main hinge seat 101 to move to one side of the secondary hinge seat 102, and then Figure 8 In the state shown, the door body 6 is driven to move toward one side of the door frame 5 to eliminate the gap between the door body 6 and the sealing strip 7, so that the side of the door body 6 can be closely attached to the sealing strip 7. Therefore, when the sealing strip 7 is thin, the door body 6 and the sealing strip 7 can still be closely attached to each other, thereby ensuring the sealing performance and expanding the scope of use.

[0045] On the contrary, when the sealing strip 7 is relatively thick, the worm 406 is rotated in the opposite direction. Figure 8 In the state shown, the distance between the door body 6 and the sealing strip 7 is increased to adapt to the thickness of the sealing strip.

[0046] In addition, when the door body 6 is tightly closed with the sealing strip 7 for a long time, it is difficult to open the door body 6 again due to the oxidation and aging of the sealing strip 7 and the adhesion to the door body 6 and the negative pressure in the internal space, and it is easy to damage the structure and auxiliary parts of the door body 6. In order to solve the above problems:

[0047] A rotating rod 207 passes through the upper and lower end surfaces of the mounting groove 201. The opposite ends of the upper and lower rotating rods 207 are fixedly connected to the sliders 205 on the upper and lower sides respectively. The slider 205 is rotated by the rotation of the rotating rod 207. The slider 205 drives the rotating frame 203 to rotate by cooperating with the guide groove 204 to realize the flipping of the magnetic seat 208.

[0048] A linkage gear 210 is movably sleeved on the outer side of the rotating rod 207, and a limit spring 211 is sleeved on the position between the linkage gear 210 and the side of the hinge 1 on the rotating rod 207. A nut 212 is threadedly connected to the outer end of the rotating rod 207. The linkage gear 210 is driven to approach the hinge 1 by rotating the nut 212 so that the linkage gear 210 is meshed with the driving gear 408. At this time, the limit spring 211 is compressed, and the side of the linkage gear 210 is tightly in contact with the end face of the nut 212. The positioning of the linkage gear 210 is achieved by increasing the friction force of the end face of the nut 212.

[0049] Two wedge seats 302 are provided, and the two wedge seats 302 are respectively provided on both sides of the rotating frame 203, and the wedge surfaces of the two wedge seats 302 are staggered. By providing two wedge seats 302, the rotating frame 203 can still cooperate with the wedge block 305 after rotating 180 degrees, thereby realizing the linear motion of the rotating frame 203.

[0050] A driving gear 408 is fixedly sleeved on one side of the worm 406 . The rotation of the worm 406 drives the driving gear 408 to rotate. After the driving gear 408 is meshed with the linkage gear 210 , the linkage gear 210 can be driven to drive the rotating rod 207 to rotate.

[0051] When the door body 6 is difficult to open, first rotate the stud 304 in the opposite direction to make the wedge block 305 move to the side away from the wedge seat 302, and then manually move the rotating rod 207 to make the rotating frame 203 flip 180 degrees, and at the same time, the wedge seat 302 on the other side flips 180 degrees. After the magnetic seat 208 flips 180 degrees, the magnetic poles are exchanged, and a magnetic repulsion force is generated between the magnetic seat 208 and the permanent magnet 209, so that the main hinge seat 101 has a tendency to move to the side away from the hinge 1. Secondly, rotate the nut 212 to drive the linkage gear 210 to move to the side of the driving gear 408 until the linkage gear 210 is meshed with the driving gear 408. At this time, the limit spring 211 is compressed, so that the side of the linkage gear 210 is tightly fitted with the side of the nut 212, thereby realizing the positioning of the linkage gear 210.

[0052] Then, the adjusting cap 409 is rotated forward and backward, and the worm 406 and the rotating rod 207 are rotated forward and backward at the same time. When the rotating rod 207 rotates forward and backward, the angle between the magnetic seat 208 and the permanent magnet 209 changes continuously, so a fluctuating magnetic repulsion force is generated between the magnetic seat 208 and the permanent magnet 209. Under the action of the fluctuating magnetic repulsion force, the main hinge seat 101 vibrates slightly, and then the door body 6 vibrates slightly.

[0053] At the same time, the forward and reverse rotation of the worm 406 drives the screw 404 to rotate forward and reverse through the worm wheel 405, so that the hinge 1 drives the main hinge seat 101 to reciprocate, and then Figure 8 In the state shown, the hinge 1 drives the main hinge seat 101 to perform a slight reciprocating motion, thereby realizing a slight reciprocating motion of the door body 6, causing repeated slight squeezing and tearing between the door body 6 and the sealing strip 7, and cooperating with the slight vibration of the door body 6, the door body 6 can quickly detach from the sealing strip 7 to facilitate the rapid opening of the door body 6.

[0054] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A double-axis hinge structure, comprising a hinge (1), a main hinge seat (101) and a secondary hinge seat (102), characterized in that: A U-shaped groove is provided at one end of the hinge (1); one end of the main hinge seat (101) is hinged in the U-shaped groove via a main pin shaft; the other end of the hinge (1) is hinged to the end of the secondary hinge seat (102) via a secondary pin shaft; the main pin shaft and the secondary pin shaft are both sleeved with rubber sleeves; fixing holes are provided on the main hinge seat (101) and the secondary hinge seat (102); a pad (103) is provided on one side of the secondary hinge seat (102); a baffle (104) is provided on the side of the main hinge seat (101) away from the pad (103); the end of the baffle (104) passes over the end surface of the U-shaped groove; An auxiliary unit (2) and a driving unit (3) are provided on a side of the hinge (1) close to the main hinge seat (101); the auxiliary unit (2) is used to provide auxiliary force to the main hinge seat (101); the driving unit (3) is used to drive the auxiliary unit (2) to move; and an adjustment unit (4) is provided on a side of the hinge (1) close to the secondary hinge seat (102); the adjustment unit (4) is used to adjust the position of the hinge (1).

2. The double-axis hinge structure according to claim 1, characterized in that: The auxiliary unit (2) comprises a mounting groove (201) and a transmission groove (202); the mounting groove (201) is provided on the end surface of the U-shaped groove; the transmission groove (202) is provided on the side surface of the hinge (1); the mounting groove (201) and the transmission groove (202) are connected to each other; a rotating frame (203) is provided in the mounting groove (201); guide grooves (204) are provided on both the upper and lower end surfaces of the rotating frame (203); a slider (205) is slidably connected in the guide groove (204); and an elastic sheet (206) is provided between the side surface of the slider (205) and the inner side surface of the guide groove (204).

3. The double-axis hinge structure according to claim 2, characterized in that: A rotating rod (207) is passed through the upper and lower end surfaces of the installation groove (201); opposite ends of the upper and lower rotating rods (207) are fixedly connected to the sliders (205) on the upper and lower sides respectively; a magnetic seat (208) is provided inside the rotating frame (203); and a permanent magnet (209) is provided on the side of the main hinge seat (101).

4. The double-axis hinge structure according to claim 3, characterized in that: The outer side of the rotating rod (207) is movably sleeved with a linkage gear (210), a limit spring (211) is sleeved on a position of the rotating rod (207) between the linkage gear (210) and the side of the hinge (1), and the outer end of the rotating rod (207) is threadedly connected with a nut (212).

5. The double-axis hinge structure according to claim 2, characterized in that: The driving unit (3) comprises a wedge-shaped seat (302) and a wedge-shaped block (305), wherein two wedge-shaped seats (302) are provided correspondingly, and the two wedge-shaped seats (302) are respectively provided on both sides of the rotating frame (203), and the wedge-shaped surfaces of the two wedge-shaped seats (302) are staggered, and the wedge-shaped seat (302) is provided on the side of the rotating frame (203) through the frame seat (301), and the wedge-shaped block (305) cooperates with the wedge-shaped surface of the wedge-shaped seat (302) on the side close to the transmission groove (202), and a stud (304) passes through the middle of the wedge-shaped block (305) and is threadedly connected, and the end of the stud (304) is provided on the side of the hinge (1) through a support (303) that is rotatably connected, and a telescopic rod (306) is provided between the support (303) and the wedge-shaped block (305).

6. The double-axis hinge structure according to claim 1, characterized in that: The adjusting unit (4) comprises a square groove (401), a square tube (402) is slidably connected in the square groove (401), a threaded tube (403) is provided on the side of the square tube (402), a screw rod (404) is internally threadedly connected to the threaded tube (403), one end of the screw rod (404) is rotatably connected to the side of the square groove (401), and the end of the screw rod (404) extends into the transmission groove (202).

7. The double-axis hinge structure according to claim 6, characterized in that: A worm wheel (405) is provided at the end of the screw (404), a worm (406) is meshed with the outside of the worm wheel (405), a fixed seat (407) is provided on the surface of the hinge (1) through which the end of the worm (406) is rotatably connected, a driving gear (408) is fixedly sleeved on one side of the worm (406), and an adjustment cap (409) is provided at the end of the worm (406).

8. The double-axis hinge structure according to claim 1, characterized in that: The main hinge seat (101) is fixedly connected to the door body (6) via a fastener, and the auxiliary hinge seat (102) is fixedly connected to the door frame (5) via a fastener. A sealing strip (7) is provided on the side of the door frame (5).

9. Application of the double-axis hinge structure according to any one of claims 1 to 8 in the assembly of a sealed door.

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