Manual-automatic integrated electric hinge assembly

Abstract

The invention discloses a manual and automatic integrated electric hinge assembly which comprises a driving motor, a reduction gearbox, a driving rotating shaft, a movable support, a first torsion structure, a first locking nut, an auxiliary support, a second torsion structure and a second locking nut. The periphery of the driving rotating shaft is sleeved with the movable support through the movable support through hole, the first locking nut applies locking force towards the movable support shaft sleeve part side to the first torsion structure, and friction force exists between the movable support shaft sleeve part and the first torsion structure; an auxiliary frame shaft sleeve part of the auxiliary support sleeves the periphery of the driving rotating shaft through an auxiliary frame through hole, a second locking nut applies locking force towards the auxiliary frame shaft sleeve part side to a second torsion structure, and friction force exists between the auxiliary frame shaft sleeve part and the second torsion structure; the first torsion structure and the second torsion structure respectively comprise a first damping gasket, an elastic piece and a second damping gasket. By means of the structural design, the device has the advantages of being novel in structural design and good in stability and reliability, and the shaking phenomenon can be effectively avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of electric hinges, and in particular to a manual-automatic integrated electric hinge assembly. Background Art

[0002] The patent application number is: 202410882347.7, and the patent name is: A Chinese invention patent application for a shaft module and an electronic device, which specifically discloses an electric shaft (hinge); specifically, the shaft module includes a driving component, a rotating component and a shaft composed of a driving shaft and a driven shaft, the rotating component includes a connecting part, a rotating part rotatably mounted on the periphery of the shaft, and a torsion structure is provided on both sides of the rotating part. There is a clamping damping force along the axial direction of the shaft between the torsion structure and the rotating part of the rotating component. Under the action of the clamping damping force, a torsion is formed between the torsion structure and the rotating component; the rotating component is configured to rotate synchronously with the shaft or to rotate relative to the shaft; the shaft module also includes a locking component, which is sleeved on the periphery of the shaft and applies a locking force to the torsion structure and the rotating part of the rotating component along the axial direction of the shaft; the driving component includes a driving motor and a reduction gearbox, the driving motor has a driving shaft, and the ratio of the input speed of the driving shaft to the output speed of the shaft is the reduction ratio of the reduction gearbox.

[0003] For the above-mentioned shaft module, when the rotating part is electrically rotated, the driving motor drives the shaft to rotate after being decelerated by the reduction gear box. The locking force applied by the locking part causes a torque generated by friction between the rotating part of the rotating part and the shaft. The torque causes the rotating part to rotate synchronously with the shaft.

[0004] It should be pointed out that the above-mentioned shaft module has the following defects. Specifically, when the reduction gearbox realizes the reduction transmission, due to the objectively existing transmission gaps, these gaps will cause the shaft to swing. This phenomenon will be reflected in the equipment installed on the rotating part, causing the equipment to shake. Therefore, the above-mentioned shaft module has the problem of poor stability and reliability. Summary of the invention

[0005] The object of the present invention is to provide a manual-automatic integrated electric hinge assembly to address the deficiencies in the prior art. The manual-automatic integrated electric hinge assembly has a novel structural design, good stability and reliability, and can effectively avoid shaking.

[0006] To achieve the above object, the present invention is implemented through the following technical solutions.

[0007] A manual-automatic electric hinge assembly includes a driving motor, a reduction gear box, a driving shaft, a movable bracket, a first torque structure, and a first locking nut. The driving motor is fixedly mounted on a housing of the reduction gear box. A reduction gear set is installed inside the reduction gear box. The power output shaft of the driving motor is connected to an input end gear of the reduction gear set. The output end gear of the reduction gear set is connected to the driving shaft.

[0008] The movable bracket is provided with a movable bracket sleeve shaft portion, a first stop shoulder is provided at the front end portion of the driving shaft, a movable bracket sleeve portion is provided with a movable bracket through hole, the movable bracket sleeve portion is sleeved on the outer periphery of the driving shaft through the movable bracket through hole, and the movable bracket sleeve portion is located at the front side of the first stop shoulder, a first torsion structure and a first locking nut are sleeved on the outer periphery of the driving shaft at the front side of the movable bracket sleeve portion, the first locking nut is threadedly connected to the driving shaft, the first locking nut applies a locking force toward the movable bracket sleeve portion side to the first torsion structure, and there is friction between the movable bracket sleeve shaft portion and the first torsion structure;

[0009] The manual-automatic electric hinge assembly also includes an auxiliary bracket, the auxiliary bracket includes an auxiliary bracket fixing part, an auxiliary bracket shaft sleeve part located at the front side of the auxiliary bracket fixing part, the auxiliary bracket fixing part is screwed and fastened to the housing of the reduction box, the auxiliary bracket shaft sleeve part is provided with an auxiliary bracket through hole, and the auxiliary bracket shaft sleeve part is sleeved on the periphery of the driving shaft through the auxiliary bracket through hole; the periphery of the driving shaft is sleeved with a second torsion structure and a second locking nut located at the front side of the second torsion structure at the front side of the auxiliary bracket shaft sleeve part, the second locking nut is screwed with the driving shaft and the second locking nut is located at the rear side of the first stop shoulder, the second locking nut applies a locking force to the second torsion structure toward the side of the auxiliary bracket shaft sleeve part, and there is friction between the auxiliary bracket sleeve shaft part and the second torsion structure;

[0010] The first torsion structure and the second torsion structure respectively include a first damping washer, an elastic member, and a second damping washer which are arranged in sequence from front to back, and each first damping washer and each second damping washer are respectively anti-rotationally sleeved on the periphery of the driving shaft; the front surface of the first damping washer of the first torsion structure is pressed and contacted with the first locking screw, the rear surface of the second damping washer of the first torsion structure is pressed and contacted with the shaft sleeve of the movable frame, the front surface of the first damping washer of the second torsion structure is pressed and contacted with the second locking screw, and the rear surface of the second damping washer of the second torsion structure is pressed and contacted with the shaft sleeve of the auxiliary frame.

[0011] Wherein, a first auxiliary damping gasket is installed between the first stop shoulder and the movable frame sleeve portion, and the first auxiliary damping gasket is anti-rotationally sleeved on the periphery of the driving shaft, and the front surface and rear surface of the first auxiliary damping gasket are respectively pressed and contacted with the movable frame sleeve portion and the first stop shoulder on the corresponding side.

[0012] Among them, the driving shaft is provided with a second shoulder on the rear side of the auxiliary frame sleeve part of the auxiliary bracket, and a second auxiliary damping gasket is installed between the second shoulder and the auxiliary frame sleeve part. The second auxiliary damping gasket is anti-rotationally sleeved on the periphery of the driving shaft, and the front surface and rear surface of the second auxiliary damping gasket are respectively pressed and contacted with the auxiliary frame sleeve part and the second shoulder on the corresponding side.

[0013] Wherein, the driving shaft is provided with a first anti-rotation plane corresponding to the first torsion structure and a second anti-rotation plane corresponding to the second torsion structure;

[0014] The inner wall of the center hole of each damping gasket is respectively provided with a gasket anti-rotation plane, and the gasket anti-rotation planes of the first damping gasket, the second damping gasket and the first auxiliary damping gasket of the first torsion structure are respectively opposite to the first anti-rotation plane; the gasket anti-rotation planes of the first damping gasket, the second damping gasket and the second auxiliary damping gasket of the second torsion structure are respectively opposite to the second anti-rotation plane.

[0015] Wherein, the elastic member is formed by stacking at least two butterfly-shaped spring pieces.

[0016] The manual-automatic electric hinge assembly further includes a fixed bracket, and the fixed bracket and the housing of the reduction gearbox are an integrated structure.

[0017] Compared with the prior art, the present invention has the following beneficial effects, specifically: the locking force generated by the second locking nut generates friction between the second torsion structure and the auxiliary bracket, and then generates torsion. Under the action of this torsion, the drive shaft must overcome this torsion to swing, and when the drive shaft rotates to the desired position, the torsion will lock the drive shaft at the desired position; therefore, the above-mentioned torsion can effectively prevent the drive shaft from swinging due to the transmission clearance of the reduction box, and then can effectively prevent the structural parts installed on the connecting part of the movable bracket from shaking, and has good stability and reliability. Therefore, the manual-automatic integrated electric hinge assembly of the present invention has the advantages of novel structural design, good stability and reliability, and can effectively prevent shaking. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention is further described below with the aid of the accompanying drawings. However, the embodiments in the accompanying drawings do not constitute any limitation to the present invention.

[0019] Figure 1 It is a schematic diagram of the structure of the present invention.

[0020] Figure 2 It is a schematic diagram of the decomposition of the present invention.

[0021] Figure 3 It is a cross-sectional schematic diagram of the present invention.

[0022] Figure 4 It is a schematic structural diagram of the driving shaft of the present invention.

[0023] Figure 5 It is a schematic structural diagram of the fixing bracket of the present invention.

[0024] exist Figures 1 to 5 Included are:

[0025] 1-driving motor; 2-reduction gearbox; 21-housing; 22-output gear; 3-driving shaft; 31-first shoulder; 32-second shoulder; 33-first anti-rotation plane; 34-second anti-rotation plane; 4-movable bracket; 41-movable bracket shaft sleeve; 42-movable bracket through hole; 51-first torque structure; 52-second torque structure; 531-first damping gasket; 532-elastic member; 533-second damping gasket; 61-first locking nut; 62-second locking nut; 7-auxiliary bracket; 71-auxiliary bracket fixing part; 72-auxiliary bracket shaft sleeve; 73-auxiliary frame through hole; 81-first auxiliary damping gasket; 82-second auxiliary damping gasket; 9-fixed bracket. DETAILED DESCRIPTION

[0026] The present invention is described below in conjunction with specific implementation methods.

[0027] Embodiment 1, as Figures 1 to 3 As shown, a manual-automatic electric hinge assembly includes a driving motor 1, a reduction box 2, a driving shaft 3, a movable bracket 4, a first torsion structure 51, and a first locking nut 61. The driving motor 1 is fastened to the housing 21 of the reduction box 2. A reduction gear set is installed inside the reduction box 2. The power output shaft of the driving motor 1 is connected to the input end gear of the reduction gear set, and the output end gear 22 of the reduction gear set is connected to the driving shaft 3.

[0028] Among them, Figures 1 to 4 As shown, the movable bracket 4 is provided with a movable frame sleeve shaft portion, the front end portion of the driving shaft 3 is provided with a first shoulder 31, the movable frame sleeve portion 41 is provided with a movable frame through hole 42, the movable frame sleeve portion 41 is sleeved on the periphery of the driving shaft 3 through the movable frame through hole 42 and the movable frame sleeve portion 41 is located on the front side of the first shoulder 31, the first torsion structure 51 and the first locking nut 61 are sleeved on the periphery of the driving shaft 3 on the front side of the movable frame sleeve portion 41, the first locking nut 61 is threadedly connected to the driving shaft 3, the first locking nut 61 applies a locking force to the first torsion structure 51 toward the side of the movable frame sleeve portion 41, and there is friction between the movable frame sleeve shaft portion and the first torsion structure 51.

[0029] Further, such as Figures 1 to 5As shown, the manual-automatic integrated electric hinge assembly also includes an auxiliary bracket 7, which includes an auxiliary bracket fixing portion 71 and an auxiliary bracket shaft sleeve portion 72 located on the front side of the auxiliary bracket fixing portion 71, the auxiliary bracket fixing portion 71 is screwed and fastened to the housing 21 of the reduction gear box 2, the auxiliary bracket shaft sleeve portion 72 is provided with an auxiliary bracket through hole 73, and the auxiliary bracket shaft sleeve portion 72 is sleeved on the periphery of the driving shaft 3 through the auxiliary bracket through hole 73; the periphery of the driving shaft 3 is sleeved with a second torsion structure 52 and a second locking nut 62 located on the front side of the second torsion structure 52 on the front side of the auxiliary bracket shaft sleeve portion 72, the second locking nut 62 is screwed to the driving shaft 3 and the second locking nut 62 is located on the rear side of the first shoulder 31, the second locking nut 62 applies a locking force to the second torsion structure 52 toward the auxiliary bracket shaft sleeve portion 72 side, and there is friction between the auxiliary bracket sleeve shaft portion and the second torsion structure 52.

[0030] Furthermore, Figures 1 to 3 As shown, the first torsion structure 51 and the second torsion structure 52 respectively include a first damping gasket 531, an elastic member 532, and a second damping gasket 533 which are arranged in sequence from front to back, and each first damping gasket 531 and each second damping gasket 533 are respectively anti-rotationally sleeved on the periphery of the driving shaft 3; the front surface of the first damping gasket 531 of the first torsion structure 51 is pressed and contacted with the first locking screw, and the rear surface of the second damping gasket 533 of the first torsion structure 51 is pressed and contacted with the movable frame shaft sleeve portion 41, the front surface of the first damping gasket 531 of the second torsion structure 52 is pressed and contacted with the second locking screw, and the rear surface of the second damping gasket 533 of the second torsion structure 52 is pressed and contacted with the auxiliary frame shaft sleeve portion 72.

[0031] It should be explained that the first damping gasket 531 and the second damping gasket 533 of the first embodiment of the present invention can adopt the following structural form to achieve anti-rotation socket connection with the driving shaft 3, specifically: the driving shaft 3 is provided with a first anti-rotation plane 33 corresponding to the first torsion structure 51, and a second anti-rotation plane 34 corresponding to the second torsion structure 52; the inner walls of the center holes of each first damping gasket 531 and each second damping gasket 533 are respectively provided with gasket anti-rotation planes, and the gasket anti-rotation planes of the first damping gasket 531 and the second damping gasket 533 of the first torsion structure 51 are respectively opposite to the first anti-rotation plane 33; the gasket anti-rotation planes of the first damping gasket 531 and the second damping gasket 533 of the second torsion structure 52 are respectively opposite to the second anti-rotation plane 34.

[0032] In addition, the manual-automatic integrated electric hinge assembly also includes a fixed bracket 9, which is an integral structure with the housing 21 of the reduction box 2. When the manual-automatic integrated electric hinge assembly of the first embodiment realizes the rotational connection of two structural parts, the fixed bracket 9 is tightly connected to the fixed structural part, and the movable bracket 4 is tightly connected to the movable structural part.

[0033] The manual-automatic integrated electric hinge assembly of the first embodiment can realize electric action and manual action; when the new electric hinge structure of the first embodiment realizes electric action, the drive motor 1 drives the drive shaft 3 to rotate after being decelerated by the reduction box 2, and the locking force generated by the first locking nut 61 causes friction between the first torque structure 51 and the movable frame shaft sleeve part 41 of the movable bracket 4, thereby generating a first torque effect. Under the action of the first torque, the movable bracket 4 rotates synchronously with the drive shaft 3, thereby realizing electric action. When the new electric hinge structure of the first embodiment realizes manual action, the drive motor 1 is not started and the drive shaft 3 is not rotated. At this time, the rotation can be realized by rotating the movable bracket 4 or the movable structural member installed on the movable bracket 4, that is, the movable structural member installed on the movable bracket 4 can be rotated by manual movement, that is, the normal use function of the device is not affected by the drive motor 1.

[0034] The locking force generated by the second locking nut 62 causes friction to be generated between the second torsion structure 52 and the auxiliary bracket 7, thereby generating a second torsion. Under the action of the second torsion, the driving shaft 3 must overcome the second torsion to swing, and when the driving shaft 3 rotates to the desired position, the second torsion will lock the driving shaft 3 at the desired position; therefore, the above-mentioned second torsion can effectively prevent the driving shaft 3 from swinging due to the transmission clearance of the reduction box 2, and can effectively prevent the structural parts installed on the connecting part of the movable bracket 4 from shaking, and has good stability and reliability.

[0035] It should be pointed out that when the new electric hinge structure of the first embodiment realizes electric motion, for the combined structure composed of the auxiliary bracket 7, the second torsion structure 52 and the second locking nut 62 of the first embodiment, the principle is as follows: the driving motor 1 drives the driving shaft 3 to rotate, and the first damping gasket 531 and the second damping gasket 533 of the second torsion structure 52 are respectively fixedly mounted on the periphery of the driving shaft 3, that is, the first damping gasket 531 and the second damping gasket 533 rotate synchronously with the driving shaft 3, and the auxiliary bracket 7 is fastened to the housing 21 of the reduction box 2. In this process, the second damping gasket 533 of the second torsion structure 52 There is friction resistance between the auxiliary bracket 7 and the driving shaft 3, and the friction resistance generated by the second damping gasket 533 prevents the driving shaft 3 from swinging due to the transmission gap; at the same time, the first damping gasket 531 of the second torsion structure 52 creates friction resistance between the driving shaft 3 and the second locking nut 62, and the friction resistance generated by the first damping gasket 531 can effectively prevent the second locking nut 62 from loosening, so as to further improve the stability and reliability of use; because the second locking nut 62 is screwed on the driving shaft 3, the deformation of the elastic member 532 of the second torsion structure 52 can be adjusted by rotating the second locking nut 62, thereby realizing torque adjustment.

[0036] In addition, for the combined structure composed of the second torsion structure 52 and the second locking nut 62 of the first embodiment, its principle is as follows: since the first damping gasket 531 and the second damping gasket 533 of the first torsion structure 51 are respectively anti-rotationally mounted on the periphery of the driving shaft 3, that is, the first damping gasket 531 and the second damping gasket 533 rotate synchronously with the driving shaft 3, respectively, the second damping gasket 533 of the second torsion structure 52 enables friction resistance between the movable bracket 4 and the driving shaft 3, and the friction generated by the second damping gasket 533 The resistance makes the movable bracket 4 rotate synchronously with the driving shaft 3; at the same time, the first damping gasket 531 of the first torsion structure 51 makes there be friction resistance between the driving shaft 3 and the first locking nut 61, and the friction resistance generated by the first damping gasket 531 can effectively prevent the first locking nut 61 from loosening, so as to further improve the stability and reliability of use; because the first locking nut 61 is screwed on the driving shaft 3, the deformation of the elastic member 532 of the first torsion structure 51 can be adjusted by rotating the first locking nut 61, thereby realizing torque adjustment.

[0037] In summary, it can be seen that, through the above structural design, the manual-automatic integrated electric hinge assembly of the first embodiment has the advantages of novel structural design, good stability and reliability, and can effectively avoid shaking.

[0038] Embodiment 2, as Figure 2 and Figure 3 As shown, the difference between the second embodiment and the first embodiment is that a first auxiliary damping gasket 81 is installed between the first stop shoulder 31 and the movable frame shaft sleeve portion 41, the first auxiliary damping gasket 81 is anti-rotationally sleeved on the periphery of the driving shaft 3, and the front surface and the rear surface of the first auxiliary damping gasket 81 are respectively pressed and contacted with the movable frame shaft sleeve portion 41 and the first stop shoulder 31 on the corresponding side.

[0039] For the first auxiliary damping gasket 81 of the second embodiment, it can be connected with the driving shaft 3 to achieve anti-rotation socket connection in the following manner. Specifically, a gasket anti-rotation plane is provided on the inner wall of the center hole of the first auxiliary damping gasket 81, and the gasket anti-rotation plane of the first auxiliary damping gasket 81 is opposite to the first anti-rotation plane 33 of the driving shaft 3 respectively.

[0040] When the driving shaft 3 rotates and drives the movable bracket 4 to rotate synchronously, the locking force applied by the first locking nut 61 causes the first auxiliary damping gasket 81 to be clamped between the first stop shoulder 31 and the movable bracket sleeve portion 41. Since the first auxiliary damping gasket 81 rotates synchronously with the driving shaft 3, there is a friction resistance between the movable bracket sleeve portion 41 and the first stop shoulder 31 at this time. The friction resistance can improve the synchronization stability of the movable bracket 4 and the driving shaft 3 during electric rotation on the one hand, and can also improve the resistance of the movable bracket 4 when rotating relative to the driving shaft 3 on the other hand, so as to ensure that the movable bracket 4 can be accurately stopped at the desired position.

[0041] Embodiment three, as Figure 2 and Figure 3 As shown, the difference between the third embodiment and the second embodiment is that the driving shaft 3 is provided with a second shoulder 32 on the rear side of the auxiliary frame sleeve portion 72 of the auxiliary bracket 7, and a second auxiliary damping gasket 82 is installed between the second shoulder 32 and the auxiliary frame sleeve portion 72. The second auxiliary damping gasket 82 is anti-rotationally sleeved on the periphery of the driving shaft 3, and the front surface and the rear surface of the second auxiliary damping gasket 82 are respectively pressed and contacted with the auxiliary frame sleeve portion 72 and the second shoulder 32 on the corresponding side.

[0042] For the second auxiliary damping gasket 82 of the third embodiment, it can be connected with the driving shaft 3 to achieve anti-rotation socket connection in the following manner. Specifically, a gasket anti-rotation plane is provided on the inner wall of the center hole of the second auxiliary damping gasket 82, and the gasket anti-rotation plane of the second auxiliary damping gasket 82 is opposite to the second anti-rotation plane 34 of the driving shaft 3.

[0043] When the auxiliary frame fixing part 71 of the auxiliary bracket 7 is screwed and fixed to the housing 21 of the reduction gear box 2, the second auxiliary damping gasket 82 is pressed, and the second damping gasket 533 is pressed between the second shoulder 32 and the auxiliary frame sleeve part 72. Since the second auxiliary damping gasket 82 rotates synchronously with the driving shaft 3, the second auxiliary damping gasket 82 can increase the friction resistance when the driving shaft 3 rotates, thereby further improving the stability and reliability.

[0044] Embodiment 4, as Figure 2 and Figure 3 As shown, the difference between the fourth embodiment and the first embodiment is that the elastic member 532 is formed by stacking at least two butterfly-shaped spring pieces.

[0045] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there will be changes in the specific implementation methods and application scopes. The content of this specification should not be understood as limiting the present invention.

Claims

1. A manual-automatic electric hinge assembly, comprising a drive motor (1), a reduction gear box (2), a drive shaft (3), a movable bracket (4), a first torque structure (51), and a first locking nut (61), wherein the drive motor (1) is fixedly mounted on a housing (21) of the reduction gear box (2), a reduction gear set is arranged inside the reduction gear box (2), a power output shaft of the drive motor (1) is connected to an input end gear of the reduction gear set, and an output end gear (22) of the reduction gear set is connected to the drive shaft (3); The movable bracket (4) is provided with a movable bracket sleeve shaft portion, the front end portion of the driving shaft (3) is provided with a first stop shoulder (31), the movable bracket sleeve portion (41) is provided with a movable bracket through hole (42), the movable bracket sleeve portion (41) is sleeved on the periphery of the driving shaft (3) through the movable bracket through hole (42), and the movable bracket sleeve portion (41) is located on the front side of the first stop shoulder (31), the periphery of the driving shaft (3) is sleeved on the front side of the movable bracket sleeve portion (41), a first torsion structure (51) and a first locking nut (61) are sleeved, the first locking nut (61) is threadedly connected to the driving shaft (3), the first locking nut (61) applies a locking force to the first torsion structure (51) towards the side of the movable bracket sleeve portion (41), and there is friction between the movable bracket sleeve shaft portion and the first torsion structure (51); Features: The manual-automatic electric hinge assembly further comprises an auxiliary bracket (7), the auxiliary bracket (7) comprising an auxiliary bracket fixing portion (71), an auxiliary bracket shaft sleeve portion (72) located in front of the auxiliary bracket fixing portion (71), the auxiliary bracket fixing portion (71) being screwed and fastened to the housing (21) of the reduction gear box (2), the auxiliary bracket shaft sleeve portion (72) being provided with an auxiliary bracket through hole (73), the auxiliary bracket shaft sleeve portion (72) being sleeved on the periphery of the driving shaft (3) through the auxiliary bracket through hole (73); the periphery of the driving shaft (3) A second torsion structure (52) and a second locking nut (62) located on the front side of the second torsion structure (52) are sleeved on the front side of the auxiliary frame shaft sleeve portion (72); the second locking nut (62) is threadedly connected to the driving shaft (3) and the second locking nut (62) is located on the rear side of the first stop shoulder (31); the second locking nut (62) applies a locking force to the second torsion structure (52) toward the auxiliary frame shaft sleeve portion (72); and there is friction between the auxiliary frame sleeve shaft portion and the second torsion structure (52); The first torsion structure (51) and the second torsion structure (52) respectively comprise a first damping washer (531), an elastic member (532), and a second damping washer (533) which are arranged in sequence from front to back. Each first damping washer (531) and each second damping washer (533) are respectively rotationally fixedly sleeved on the periphery of the driving shaft (3); the front surface of the first damping washer (531) of the first torsion structure (51) is in pressure contact with the first locking screw, the rear surface of the second damping washer (533) of the first torsion structure (51) is in pressure contact with the movable frame shaft sleeve portion (41), the front surface of the first damping washer (531) of the second torsion structure (52) is in pressure contact with the second locking screw, and the rear surface of the second damping washer (533) of the second torsion structure (52) is in pressure contact with the auxiliary frame shaft sleeve portion (72).

2. The manual-automatic electric hinge assembly according to claim 1, characterized in that: A first auxiliary damping gasket (81) is arranged between the first stop shoulder (31) and the movable frame shaft sleeve portion (41); the first auxiliary damping gasket (81) is rotationally fixedly sleeved on the periphery of the driving shaft (3); and the front surface and the rear surface of the first auxiliary damping gasket (81) are respectively in press contact with the movable frame shaft sleeve portion (41) and the first stop shoulder (31) on the corresponding side.

3. The manual-automatic electric hinge assembly according to claim 2, characterized in that: The driving shaft (3) is provided with a second stop shoulder (32) at the rear side of the auxiliary frame shaft sleeve portion (72) of the auxiliary bracket (7), and a second auxiliary damping gasket (82) is installed between the second stop shoulder (32) and the auxiliary frame shaft sleeve portion (72). The second auxiliary damping gasket (82) is anti-rotationally sleeved on the periphery of the driving shaft (3), and the front surface and the rear surface of the second auxiliary damping gasket (82) are respectively in press contact with the auxiliary frame shaft sleeve portion (72) and the second stop shoulder (32) on the corresponding side.

4. The manual-automatic electric hinge assembly according to claim 3, characterized in that: The driving shaft (3) is provided with a first anti-rotation plane (33) corresponding to the first torsion structure (51), and a second anti-rotation plane (34) corresponding to the second torsion structure (52); A gasket anti-rotation plane is provided on the inner wall of the center hole of each damping gasket, and the gasket anti-rotation planes of the first damping gasket (531), the second damping gasket (533) and the first auxiliary damping gasket (81) of the first torsion structure (51) are respectively opposite to the first anti-rotation plane (33); and the gasket anti-rotation planes of the first damping gasket (531), the second damping gasket (533) and the second auxiliary damping gasket (82) of the second torsion structure (52) are respectively opposite to the second anti-rotation plane (34).

5. The manual-automatic electric hinge assembly according to claim 1, characterized in that: The elastic member (532) is formed by stacking at least two butterfly-shaped elastic sheets.

6. A manual-automatic electric hinge assembly according to any one of claims 1 to 5, characterized in that: The manual-automatic electric hinge assembly also includes a fixed bracket (9), and the fixed bracket (9) and the housing (21) of the reduction box (2) are an integral structure.

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