CN114517616A - Hinge device and box system - Google Patents

Abstract

The invention relates to the technical field of hinges and discloses a hinge device and a box body system. The hinge device comprises a hinge swing arm which is used for connecting an external structure. Wherein the hinge swing arm has a first end and a second end, and the first end and the second end are arranged oppositely. The hinge device also comprises a driving assembly and an elastic piece, wherein the driving assembly is in transmission connection with the hinge swing arm through the elastic piece, and the elastic piece is used for enabling the second end of the hinge swing arm to have a tendency of swinging around the first end and towards the driving assembly; wherein, drive assembly can adjust the deformation volume of elastic component for the hinge swing arm drives the exterior structure swing of different weight. According to the invention, the hinge device can have a switching function between a manual driving mode and an electric driving mode.

Description

Hinge device and box system

Technical Field

The invention relates to the technical field of hinges, in particular to a hinge device and a box body system.

Background

Household electrical appliances such as ovens, refrigerators, microwave ovens, and the like generally have a door body that is connected to an appliance body by a hinge mechanism to open and close the door body. However, the compatibility of the current hinge mechanisms is poor, and generally, one hinge mechanism can only be matched with a door body with one weight. In other words, when the hinge mechanism is required to be applied to opening and closing of door bodies with different weights, different hinge mechanisms need to be replaced and used, so that the cost of the existing hinge mechanism is high.

Disclosure of Invention

In view of the above, the present invention provides a hinge device and a box system, which can improve the compatibility of the hinge device.

In order to solve the technical problems, the invention adopts a technical scheme that: a hinge device is provided. The hinge device comprises a hinge swing arm which is used for connecting an external structure. Wherein the hinge swing arm has a first end and a second end, and the first end and the second end are arranged oppositely. The hinge device also comprises a driving assembly and an elastic piece, wherein the driving assembly is in transmission connection with the hinge swing arm through the elastic piece, and the elastic piece is used for enabling the second end of the hinge swing arm to have a tendency of swinging around the first end and towards the driving assembly; wherein, drive assembly can adjust the deformation volume of elastic component for the hinge swing arm drives the exterior structure swing of different weight.

In one embodiment of the present invention, the driving assembly includes a driving member and a moving member; the driving piece is connected with the elastic piece through the moving piece and used for driving the moving piece to move towards or away from the hinge swing arm so as to adjust the deformation amount of the elastic piece, and when the driving piece stops driving the moving piece to move, a user is allowed to manually drive the hinge swing arm to swing.

In an embodiment of the invention, the drive assembly further comprises a drive rack and a drive gear; drive gear transmission is connected in the drive end of driving piece, and the moving member is equipped with the drive rack, and drive gear and drive rack mesh, the driving piece passes through drive gear and rotates for drive gear drives the moving member through the drive rack and removes.

In an embodiment of the invention, the hinge device further comprises a gear transmission assembly; the elastic piece is in transmission connection with the hinge swing arm through a gear transmission assembly.

In one embodiment of the invention, the gear transmission assembly comprises a first transmission gear and a second transmission gear; the first transmission gear is meshed with the second transmission gear, the first transmission gear is further connected with the elastic piece, and the second transmission gear is arranged on the hinge swing arm and can synchronously rotate; wherein the elastic member applies a torque to the second transmission gear through the first transmission gear, so that the hinge swing arm has a tendency to swing toward the driving assembly.

In an embodiment of the invention, the hinge device further comprises a damping assembly; the damping assembly is in frictional contact with a gear of the gear drive assembly to apply a damping force to the gear for resisting rotation of the gear.

In an embodiment of the invention, the hinge device further comprises a sensor; the sensor is used for sensing whether the acceleration of the hinge swing arm has a sudden change condition in real time, so that when the acceleration of the hinge swing arm has the sudden change condition, the driving assembly adjusts the deformation amount of the elastic piece back to the initial state, and then the adjustment of the deformation amount of the elastic piece is stopped.

In order to solve the technical problem, the invention adopts another technical scheme that: a case system is provided. The tank system includes a tank. The box body system further comprises a door body, the door body is connected with the box body through the hinge device explained according to the embodiment, the driving assembly of the hinge device is arranged on the box body, and the hinge swing arm is connected with the door body.

In an embodiment of the present invention, the elastic member of the hinge device applies a first torque to the hinge swing arm; the hinge swing arm and the self gravity of the door body apply a second torque to the hinge swing arm; the hinge device also comprises a damping component, and the damping component applies a third torque to the hinge swing arm; when the opening angle of the door body relative to the box body is smaller than or equal to the threshold value, the first torque is larger than the resultant torque of the second torque and the third torque, and the direction of the first torque is opposite to the direction of the resultant torque.

In an embodiment of the present invention, the elastic member of the hinge device applies a first torque to the hinge swing arm; the hinge swing arm and the self gravity of the door body apply a second torque to the hinge swing arm; the hinge device also comprises a damping component, and the damping component applies a third torque to the hinge swing arm; when the opening angle of the door body relative to the box body is larger than the threshold value, the resultant moment of the first torque and the third torque is balanced with the second torque.

The invention has the beneficial effects that: different from the prior art, the invention provides a hinge device and a box body system. The driving assembly of the hinge device is in transmission connection with the hinge swing arm through the elastic piece, and the driving assembly can adjust the deformation amount of the elastic piece, so that the hinge swing arm drives external structures (such as a door body and the like) with different weights to swing. In other words, the hinge device can adapt to external structures with different weights by adjusting the deformation amount of the elastic piece, namely the hinge device has good compatibility, and further the cost of the hinge device is favorably reduced.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention. Moreover, the drawings and the description are not intended to limit the scope of the inventive concept in any way, but rather to illustrate it by those skilled in the art with reference to specific embodiments.

FIG. 1 is a schematic structural view of an embodiment of the enclosure system of the present invention;

FIG. 2 is a schematic structural view of an embodiment of the hinge apparatus of the present invention;

FIG. 3 is a schematic view of the hinge assembly of FIG. 2 with the housing omitted;

FIG. 4 is an exploded view of the hinge assembly of FIG. 2;

FIGS. 5a-5b are schematic views of the present invention showing the hinge assembly driven by an electric drive;

fig. 6a-6b are schematic views of the present invention with the hinge assembly driven by a manual drive.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. The embodiments described below and the features of the embodiments can be combined with each other without conflict.

From the above description of the present specification, those skilled in the art will also understand the terms used below, terms indicating orientation or positional relationship such as "upper", "lower", "front", "rear", "left", "right", "length", "width", "thickness", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", "central", "longitudinal", "transverse", "clockwise" or "counterclockwise" and the like are based on the orientation or positional relationship shown in the drawings of the present specification, it is for the purpose of facilitating the explanation of the invention and simplifying the description, and it is not intended to state or imply that the devices or elements involved must be in the particular orientation described, constructed and operated, therefore, the above terms of orientation or positional relationship should not be construed or interpreted as limiting the present invention.

In addition, the terms "first" or "second", etc. used in this specification are used to refer to numbers or ordinal terms for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. A feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present specification, "a plurality" may be understood as at least two, for example, two, three or more, and the like. The terms "connected," "stacked," and the like are to be construed broadly.

Referring to fig. 1, fig. 1 is a schematic structural diagram of a box system according to an embodiment of the present invention.

In an embodiment, the case system may be applied to home appliance devices such as an oven, a refrigerator, a microwave oven, and the like. The cabinet system includes a cabinet 10 and a door 20. The case 10 is a container for placing articles in the household appliance. The door 20 can be opened or closed with respect to the cabinet 10 to allow articles to be put into the cabinet 10 when the door 20 is opened, and to form a relatively closed space inside the cabinet 10 when the door 20 is closed.

Of course, the cabinet system of the embodiment may also be applied to apparatuses having the cabinet 10 and the door 20 in other fields, which is not limited herein.

Specifically, the door 20 is connected to the cabinet 10 by a hinge device 30. In other words, the door 20 is opened or closed with respect to the cabinet 10 by the hinge device 30. The hinge device 30 is described in detail below based on the scenario in which the case system is applied to an oven. It is to be understood that the hinge device 30 of the container system of the present embodiment is not limited to the following.

Referring to fig. 2 to 4, fig. 2 is a schematic structural diagram of an embodiment of the hinge device of the present invention, fig. 3 is a schematic structural diagram of the hinge device shown in fig. 2 without a housing, and fig. 4 is an exploded structural diagram of the hinge device shown in fig. 2.

In an embodiment, the hinge device 30 comprises a hinge swing arm 31. The hinge swing arm 31 is used to connect external structures. Specifically, when the hinge device 30 is applied to the above-described chest system, the hinge swing arm 31 is provided to a door body of the chest system. The hinge swing arm 31 has a first end 311 and a second end 312 disposed opposite to each other.

The hinge device 30 further includes a drive assembly 32. The driving assembly 32 is a power source of the hinge device 30, and is used for driving the hinge swing arm 31 to swing so as to realize the opening and closing of the hinge device 30. The swinging of the hinge swing arm 31 is embodied such that the second end 312 of the hinge swing arm 31 swings around the first end 311.

The hinge device 30 further comprises an elastic member 33. The driving assembly 32 is in transmission connection with the hinge swing arm 31 through an elastic piece 33. Specifically, the driving assembly 32 can adjust the deformation amount of the elastic member 33, so that the hinge swing arm 31 can swing the external structures with different weights, and when the driving assembly 32 stops adjusting the deformation amount of the elastic member 33, the user is allowed to manually drive the hinge swing arm 31 to swing.

Please refer to fig. 5a and 5 b. The amount of deformation of the elastic member 33 affects the amount of torque that the elastic member 33 applies to the hinge swing arm 31. In other words, by adjusting the deformation amount of the elastic member 33, the amount of torque applied to the hinge swing arm 31 by the elastic member 33 can be adjusted. The torque applied to the swing hinge arm 31 by the elastic member 33 is a first torque T1, and the torque applied to the swing hinge arm 31 by the self-weight of the swing hinge arm 31 and the external structure (such as the door body) connected thereto is a second torque T2, wherein the first torque T1 is opposite to the second torque T2. When the hinge device 30 is opened, the first torque T1 is less than the second torque T2; when the hinge device 30 is closed, the first torque T1 is greater than the second torque T2, i.e., the driving assembly 32 provides an electric driving manner to drive the hinge device 30 to open or close.

And, when the driving assembly 32 stops adjusting the deformation amount of the elastic member 33, the user can directly operate the external structure to which the hinge swing arm 31 is connected, so that the hinge device 30 is opened or closed, i.e., the user is allowed to manually drive the hinge swing arm 31 to swing, providing a manual driving manner to drive the hinge device 30 to open or close. Therefore, the hinge device 30 of the present embodiment has a function of switching between the manual drive method and the electric drive method, and the manual drive method and the electric drive method of the hinge device 30 can be switched without trouble.

In addition, the elastic member 33 of the hinge device 30 of the present embodiment can buffer the generated rigid impact force during the switching process of the driving mode, so as to reduce the risk of damage to the hinge device 30 due to the excessive rigid impact force, which is beneficial to improving the structural reliability of the hinge device 30.

Taking the hinge device 30 of the present embodiment applied to the above-mentioned box system as an example, when the door body is closed relative to the box, the elastic member 33 has an initial deformation amount; when the door body is opened relative to the box body, the driving assembly 32 adjusts based on the initial deformation of the elastic piece 33, so that the hinge swing arm 31 can drive the door body to swing. The hinge device 30 of the present embodiment can adapt to door bodies with different weights, and even if there is a difference in the weight of the door bodies, the deformation amount of the elastic member 33 is adjusted by the driving assembly 32, that is, the initial deformation amount of the elastic member 33 is adjusted, and the door bodies can be controlled to be opened and closed normally. Compared with the conventional hinge mechanism, the hinge device 30 of the present embodiment does not need to design the corresponding elastic member 33 for the door bodies with different weights, so as to simplify the design of the hinge device 30 and reduce the production cost.

It should be noted that the elastic restoring force provided by the elastic member 33 of the present embodiment makes the second end 312 of the hinge swing arm 31 have a tendency to rotate around the first end 311, and the hinge swing arm 31 as a whole has a tendency to swing toward the driving assembly 32. In this way, when the hinge device 30 of the present embodiment is applied to the above-mentioned box system, the hinge swing arm 31 makes the door have a tendency of rotating toward the box, so that the design of automatically closing the door can be realized and the door can be kept in a tight state after the door is closed.

Alternatively, the elastic member 33 may be a tension spring, a compression spring, a belt, or the like, which is not limited herein.

Please continue to refer to fig. 2 to 4. In one embodiment, the drive assembly 32 includes a drive member 321. Alternatively, the driving member 321 may be a motor or the like. The driving member 321 drives the driving end to rotate, so that the driving gear 323 rotates to drive the moving member 322 to move.

The drive assembly 32 also includes a mover 322. The moving member 322 is connected to the driving member 321 and the elastic member 33, respectively, and the driving member 321 is used for driving the moving member 322 to move towards or away from the hinge swing arm 31 to adjust the deformation amount of the elastic member 33.

For example, the elastic member 33 is preferably always in a stretched state. When the driving member 321 drives the moving member 322 to move towards the hinge swing arm 31, the distance between the moving member 322 and the hinge swing arm 31 is reduced, so that the elongation of the elastic member 33 is reduced, that is, the deformation of the elastic member 33 is reduced, so that the torque applied to the hinge swing arm 31 by the elastic member 33 is reduced, and the hinge device 30 is opened; when the driving element 321 drives the moving element 322 to move away from the hinge swing arm 31, the distance between the moving element 322 and the hinge swing arm 31 increases, so that the elongation of the elastic element 33 increases, that is, the deformation of the elastic element 33 increases, the torque applied by the elastic element 33 to the hinge swing arm 31 increases, and the hinge device 30 is closed.

Of course, in other embodiments of the present invention, the elastic member 33 may be in a compressed state all the time, and by adjusting the position of the elastic member 33, it is sufficient to ensure that the elastic restoring force provided by the elastic member 33 makes the hinge swing arm 31 have a tendency to swing toward the driving assembly 32 as a whole. Even more, the elastic member 33 may be in a compressed state during the opening of the hinge device 30, in a stretched state during the closing of the hinge device 30, and the like, which is not limited herein.

Further, the drive assembly 32 also includes a drive gear 323. The driving member 321 has a driving end to which the driving gear 323 is drivingly connected. The driving member 321 is rotated by the driving-end driving gear 323.

The drive assembly 32 also includes a drive rack 324. The driving rack 324 is disposed on the moving member 322. The drive gear 323 is engaged with the drive rack 324. The driving member 321 drives the driving gear 323 to rotate through the driving end, so that the driving gear 323 drives the driving rack 324 to move, and further drives the moving member 322 to move through the driving rack 324.

Further, the hinge device 30 includes a base 34. The driving member 321 is disposed on the base 34, and the moving member 322 is movably disposed on the base 34. Base 34 is last still to be equipped with slide rail 341, and slide rail 341 extends towards hinge swing arm 31, and moving member 322 slides and sets up in slide rail 341, and slide rail 341 is used for guiding moving member 322 towards or keep away from hinge swing arm 31 and moves.

Further, the hinge device 30 further includes a housing 35. The housing 35 is fixed to the base 34. The housing 35 encloses a space in which the elastic member 33 and the moving member 322 are located. The hinge device 30 further includes a guide shaft 325, and the guide shaft 325 is disposed through the moving member 322. Further, the housing 35 is opened with a guide groove 351, the guide groove 351 extends toward the hinge swing arm 31, the guide shaft 325 is fitted in the guide groove 351, and the guide shaft 325 is movable along the guide groove 351.

When the driving member 321 drives the moving member 322 to move, the sliding rail 341 on the base 34 guides the moving member 322 to move towards or away from the hinge swing arm 31, and the guide shaft 325 moves along the guide groove 351 to cooperate with the sliding rail 341 to guide the moving member 322 to move towards or away from the hinge swing arm 31.

Of course, in other embodiments of the present invention, the driving assembly 32 is not limited to the above-mentioned manner of driving the moving member 322 to move through the driving gear 323 and the driving rack 324, and the driving member 321 may also drive the moving member 322 to move through a linear screw rod or the like, which is not limited herein.

Please continue to refer to fig. 2 to 4. In one embodiment, the hinge assembly 30 further includes a gear assembly 36. The elastic member 33 is in transmission connection with the hinge swing arm 31 through a gear transmission assembly 36. In other words, the elastic member 33 applies a torque to the hinge swing arm 31 through the gear assembly 36.

For example, the gear assembly 36 includes a first drive gear 361 and a second drive gear 362. The first transmission gear 361 is connected to the elastic member 33. The elastic restoring force provided by the elastic member 33 can drive the first transmission gear 361 to rotate. The second transmission gear 362 is disposed on the hinge swing arm 31, and specifically, the first end 311 of the hinge swing arm 31 is disposed with the second transmission gear 362. The hinge swing arm 31 and the second transmission gear 362 can synchronously rotate, that is, the hinge swing arm 31 can synchronously rotate along with the second transmission gear 362. The first transmission gear 361 is engaged with the second transmission gear 362, and the first transmission gear 361 and the second transmission gear 362 can rotate relatively. The elastic member 33 applies a torque to the first transmission gear 361, so that the first transmission gear 361 applies a torque to the second transmission gear 362, and further applies a torque to the hinge swing arm 31, so that the hinge swing arm 31 has a tendency to swing toward the driving assembly 32.

During the opening process of the hinge device 30, the first transmission gear 361 and the second transmission gear 362 rotate relatively, the deformation amount of the elastic member 33 is increased, and the hinge swing arm 31 swings away from the driving assembly 32; during the closing process of the hinge device 30, the first transmission gear 361 and the second transmission gear 362 rotate relatively, the deformation amount of the elastic member 33 is reduced, and the hinge swing arm 31 swings toward the driving assembly 32.

Further, the hinge device 30 further includes a first fixed shaft 363 and a second fixed shaft 364. The first transmission gear 361 is sleeved on the periphery of the first fixing shaft 363, and the first transmission gear 361 is rotatably disposed on the housing 35 through the first fixing shaft 363. The second transmission gear 362 is sleeved on the outer periphery of the second fixing shaft 364, and the second transmission gear 362 is rotatably disposed on the housing 35 through the second fixing shaft 364.

Of course, in other embodiments of the present invention, the gear transmission assembly 36 may include a greater number of transmission gears, and is not limited to the first transmission gear 361 and the second transmission gear 362, so as to ensure that the elastic member 33 applies a torque to the hinge swing arm 31 through the gear transmission assembly 36, so that the hinge swing arm 31 has a tendency to swing toward the driving assembly 32, which is not limited herein.

It should be noted that, in other embodiments of the present invention, the hinge device 30 may not be provided with the gear assembly 36, but the elastic member 33 is directly connected to the hinge swing arm 31, so as to ensure that the elastic member 33 applies a torque to the hinge swing arm 31, so that the hinge swing arm 31 has a tendency to swing toward the driving assembly 32.

Please continue to refer to fig. 2 to 4. In one embodiment, the hinge assembly 30 further includes a damping assembly 37. The damping assembly 37 contacts gears of the gear transmission assembly 36, such as the first transmission gear 361 and the second transmission gear 362, etc., described above. The damping assembly 37 applies a damping force to the gears of the gear assembly 36 by way of contact friction to resist rotation of the gears.

In this way, the damping assembly 37 can increase the frictional resistance that the gear of the gear transmission assembly 36 receives in the rotation process, that is, the resistance that the hinge swing arm 31 receives in the swing process is increased, so that the swing speed of the hinge swing arm 31 is not too fast, and the swing speed of the hinge swing arm 31 is conveniently controlled. Especially, when the hinge device 30 of the present embodiment is applied to the above-mentioned box system, the swing speed of the hinge swing arm 31 is controlled, that is, the rotation speed of the door body is controlled, so that many potential safety hazards caused by the too fast rotation speed of the door body can be avoided.

It should be noted that the torque applied to the hinge swing arm 31 by the elastic member 33 is a first torque T1, and the torque applied to the hinge swing arm 31 by the self-gravity of the hinge swing arm 31 and the connected external structure thereof is a second torque T2. The damping assembly 37 applies a torque to the hinge swing arm 31 through the gear transmission assembly 36, and the torque applied to the hinge swing arm 31 by the damping assembly 37 is a third torque T3.

Please refer to fig. 5a and 5 b. In the case of driving the hinge device 30 by an electric driving manner, the driving assembly 32 adjusts the deformation amount of the elastic member 33, so that the first torque T1 provided by the elastic member 33 is greater than the resultant torque of the second torque T2 and the third torque T3, when the direction of the first torque T1 is opposite to the direction of the resultant torque, and the hinge swing arm 31 automatically swings towards the driving assembly 32, that is, the hinge device 30 is closed, as shown in fig. 5 a; and the driving assembly 32 adjusts the deformation amount of the elastic member 33 so that the resultant moment of the first torque T1 and the third torque T3 is smaller than the second torque T2, and at this time, the direction of the second torque T2 is opposite to the direction of the resultant moment, and the hinge swing arm 31 automatically swings away from the driving assembly 32, that is, the hinge device 30 opens, as shown in fig. 5 b.

Please refer to fig. 6a and fig. 6 b. In fig. 6a and 6b, the box body and the door body are omitted, and the motion process of the door body is illustrated by the hinge swing arm 31. The hinge swing arm 31 shown by the dotted line in fig. 6a and 6b is the position where the hinge swing arm 31 is located when the door is closed in the cabinet.

In the case of driving the hinge device 30 by a manual driving manner, the user may directly operate the hinge swing arm 31 to swing toward the driving assembly 32, i.e., the hinge device 30 is closed, or the user may directly operate the hinge swing arm 31 to swing away from the driving assembly 32, i.e., the hinge device 30 is opened. When the opening angle theta of the door body relative to the refrigerator body is smaller than or equal to the threshold value, the first torque T1 is larger than the resultant moment of the second torque T2 and the third torque T3, and the direction of the first torque T1 is opposite to the direction of the resultant moment. At this time, after the user releases the hinge swing arm 31, the hinge swing arm 31 will automatically swing towards the driving assembly 32 until the door is closed to the box body, as shown in fig. 6 a. In other words, the hinge device 30 of the embodiment can realize the automatic closing of the door body under the condition of opening a small angle, so that the operation burden of a user can be reduced, and the use convenience of the box body system can be improved.

When the door is closed in the compartment, the elastic member 33 still has a certain amount of deformation, i.e. the elastic member 33 is still in a stretched state, e.g. the elastic member 33 is deviated from a horizontal plane by a certain angle. At this time, the first torque T1 is still greater than the resultant torque of the second torque T2 and the third torque T3, and the direction of the first torque T1 is opposite to the direction of the resultant torque, so that the door body is kept in a closed state.

When the angle θ of the door body opening relative to the box body is greater than the threshold value, the resultant torque of the first torque T1 and the third torque T3 is balanced with the second torque T2, that is, the resultant torque is equal to the second torque T2, and the direction of the resultant torque is opposite to the direction of the second torque T2. At this time, after the user releases the hinge swing arm 31, the hinge swing arm 31 stops swinging, i.e. the door body hovers at the current position, as shown in fig. 6 b. In other words, the hinge device 30 of the present embodiment can realize that the door body hovers at any position when the door body is opened at a large angle, so that the user can take out articles from the box body or put articles into the box body conveniently.

Alternatively, the threshold may be 5 ° to 10 °, e.g. 8 °, etc. Through reasonable setting of the threshold value, the requirements of most application scenes on small-angle automatic closing and large-angle hovering of the hinge device 30 at any position can be met.

Further, the damping assembly 37 includes a damping member 371 and an adjusting member 372. The adjusting member 372 and the gear of the gear transmission assembly 36 sandwich the damping member 371, for example, the damping member 371 is sandwiched between the adjusting member 372 and the first transmission gear 361, and/or the damping member 371 is sandwiched between the adjusting member 372 and the second transmission gear 362. The adjusting member 372 clamps the damping member 371 in cooperation with the gear such that the damping member 371 applies a damping force to the gear.

And, the distance between the adjusting member 372 and the gear of the gear transmission assembly 36 is adjustable, that is, the distance between the adjusting member 372 and the gear is adjusted to adjust the clamping degree of the damping member 371, so as to adjust the damping force applied by the damping member 371 to the gear of the gear transmission assembly 36.

In other words, in this embodiment, the damping force provided by the damping member 371 can be reasonably set according to the weight of the external structure (e.g., a door body, etc.) connected to the hinge swing arm 31 and the requirement on the rotation speed of the hinge swing arm 31, so that not only the rotation speed of the hinge swing arm 31 can be prevented from being too fast, but also the functions of small-angle automatic closing and large-angle hovering of the hinge device 30 can be ensured.

Furthermore, the gear assembly 36 has adjusting members 372 on both sides of the gear, and the adjusting members 372 on both sides cooperate to clamp the gear to fix the position of the gear on the fixed shaft. Based on the above examples of the first transmission gear 361 and the second transmission gear 362, the two sides of the first transmission gear 361 are respectively provided with an adjusting piece 372, and the first transmission gear 361 is clamped by the adjusting pieces 372 on the two sides in a matching way so as to fix the position of the first transmission gear 361 on the first fixed shaft 363; and/or, the two sides of the second transmission gear 362 are respectively provided with an adjusting piece 372, and the second transmission gear 362 is clamped by the adjusting pieces 372 on the two sides in a matching way so as to fix the position of the second transmission gear 362 on the second fixed shaft 364. Further, the first transmission gear 361 has a damping member 371 provided on both sides thereof, respectively, and/or the second transmission gear 362 has a damping member 371 provided on both sides thereof, respectively.

In one embodiment, the hinge device 30 further includes a sensor (not shown). When the hinge device 30 is applied to the above-mentioned box system, the sensor may be provided on the door. The sensor is used for sensing whether the acceleration of the hinge swing arm 31 has a sudden change condition in real time, namely sensing whether the acceleration of the door body has the sudden change condition. During the process of driving the hinge device 30 by the electric driving method, there is no obvious abrupt change in the acceleration of the hinge swing arm 31, and when the user intervenes, the acceleration of the hinge swing arm 31 will generate an obvious abrupt change. For example, in the process of driving the hinge device 30 in an electric driving manner, a user suddenly and manually operates the door body to intervene in the opening and closing processes of the door body, so that the acceleration of the door body changes suddenly, that is, the acceleration of the hinge swing arm 31 changes suddenly, and the acceleration is sensed by the sensor.

When the sensor senses that the acceleration of the hinge swing arm 31 has a sudden change, the driving assembly 32 stops adjusting the deformation of the elastic member 33, and the user is allowed to manually drive the hinge swing arm 31 to swing, i.e., to switch from the electric driving mode to the manual driving mode without hindrance. In the process of driving the hinge device 30 by the manual driving method, the hinge device 30 has the functions of automatically closing at a small angle and hovering at any position at a large angle. In other words, the hinge device 30 of the present embodiment can be switched to the manual driving mode at any time during the driving by the electric driving mode, and can be switched to the electric driving mode at any time during the driving by the manual driving mode.

Further, when the sensor senses a sudden change in the acceleration of the hinge swing arm 31, the driving assembly 32 adjusts the amount of deformation of the elastic member 33 back to the initial state, and then stops adjusting the amount of deformation of the elastic member 33. The initial state is defined as the amount of initial deformation of the elastic member 33. In the case where the deformation amount of the elastic member 33 is in the initial state, when the angle at which the door body is opened with respect to the cabinet is less than or equal to the threshold, the first torque is greater than a resultant torque of the second torque and the third torque, and the direction of the first torque is opposite to the direction of the resultant torque, and when the angle at which the door body is opened with respect to the cabinet is greater than the threshold, the resultant torque of the first torque and the third torque is balanced with the second torque. In other words, the deformation amount of the elastic element 33 is in the initial state, which can ensure the function of the hinge device 30 of automatically closing at a small angle and hovering at any position at a large angle.

It should be noted that when the sensor senses that there is a sudden change in the acceleration of the hinge swing arm 31, the driving element 321 drives the moving element 322 to move to the initial position, so that the deformation amount of the elastic element 33 is adjusted back to the initial state. Moreover, the principle of the sensor sensing the acceleration abrupt change belongs to the understanding scope of the person skilled in the art, and is not described herein again.

In summary, the hinge device and the box system provided by the invention are provided. The driving assembly of the hinge device is in transmission connection with the hinge swing arm through the elastic piece, and the driving assembly can adjust the deformation amount of the elastic piece, so that the hinge swing arm drives external structures (such as a door body and the like) with different weights to swing. In other words, the hinge device can adapt to external structures with different weights by adjusting the deformation amount of the elastic piece, namely the hinge device has good compatibility, and further the cost of the hinge device is favorably reduced.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims (10)

1. A hinge device, comprising:

the hinge swing arm is used for connecting an external structure; wherein the hinge swing arm has a first end and a second end, the first end and the second end being disposed opposite to each other;

the driving assembly is in transmission connection with the hinge swing arm through the elastic piece, wherein the elastic piece is used for enabling the second end of the hinge swing arm to have a tendency of swinging around the first end and towards the driving assembly;

the driving assembly can adjust the deformation amount of the elastic piece, so that the hinge swing arm drives the external structures with different weights to swing.

2. The hinge device of claim 1,

the driving assembly comprises a driving part and a moving part;

the driving part is connected with the elastic part through the moving part and used for driving the moving part to move towards or away from the hinge swing arm so as to adjust the deformation amount of the elastic part, and when the driving part stops driving the moving part to move, a user is allowed to manually drive the hinge swing arm to swing.

3. The hinge device of claim 2,

the driving assembly further comprises a driving rack and a driving gear;

the driving gear is connected to the driving end of the driving part in a transmission mode, the moving part is provided with the driving rack, the driving gear is meshed with the driving rack, and the driving part drives the driving gear to rotate so that the driving gear drives the moving part to move through the driving rack.

4. The hinge device according to any one of claims 1 to 3,

the hinge device further comprises a gear transmission assembly;

the elastic piece is in transmission connection with the hinge swing arm through the gear transmission assembly.

5. The hinge device of claim 4,

the gear transmission assembly comprises a first transmission gear and a second transmission gear;

the first transmission gear and the second transmission gear are meshed with each other, the first transmission gear is further connected with the elastic piece, and the second transmission gear is arranged on the hinge swing arm and can synchronously rotate;

wherein the elastic member applies a torque to the second transmission gear through the first transmission gear such that the hinge swing arm has a tendency to swing toward the driving assembly.

6. The hinge device of claim 4,

the hinge assembly further includes a damping assembly;

the damping assembly is in frictional contact with a gear of the gear drive assembly to apply a damping force to the gear for resisting rotation of the gear.

7. The hinge device according to any one of claims 1 to 3,

the hinge device further comprises a sensor;

the sensor is used for sensing whether the acceleration of the hinge swing arm has a sudden change condition or not in real time, so that when the acceleration of the hinge swing arm has the sudden change condition, the driving assembly adjusts the deformation amount of the elastic piece back to the initial state, and then the adjustment of the deformation amount of the elastic piece is stopped.

8. A case system, comprising:

a box body;

the door body is connected with the box body through the hinge device according to any one of claims 1 to 7, wherein a driving assembly of the hinge device is arranged on the box body, and the hinge swing arm is connected with the door body.

9. The cabinet system according to claim 8,

the elastic piece of the hinge device applies a first torque to the hinge swing arm;

the hinge swing arm and the self gravity of the door body exert a second torque on the hinge swing arm;

the hinge device further comprises a damping component, and the damping component applies a third torque to the hinge swing arm;

when the opening angle of the door body relative to the box body is smaller than or equal to a threshold value, the first torque is larger than the resultant torque of the second torque and the third torque, and the direction of the first torque is opposite to the direction of the resultant torque.

10. The cabinet system according to claim 8,

the elastic piece of the hinge device applies a first torque to the hinge swing arm;

the hinge swing arm and the self gravity of the door body apply a second torque to the hinge swing arm;

the hinge device further comprises a damping component, and the damping component applies a third torque to the hinge swing arm;

when the opening angle of the door body relative to the box body is larger than a threshold value, the resultant moment of the first torque and the third torque is balanced with the second torque.

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