CN108061423B - Door body hinge mechanism and refrigerator with same - Google Patents
Door body hinge mechanism and refrigerator with same Download PDFInfo
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- CN108061423B CN108061423B CN201711492178.2A CN201711492178A CN108061423B CN 108061423 B CN108061423 B CN 108061423B CN 201711492178 A CN201711492178 A CN 201711492178A CN 108061423 B CN108061423 B CN 108061423B
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- door body
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- inclined plane
- hinge
- damping wheel
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- 230000007246 mechanism Effects 0.000 title claims abstract description 35
- 238000013016 damping Methods 0.000 claims abstract description 64
- 238000000034 method Methods 0.000 claims abstract description 36
- 230000000670 limiting effect Effects 0.000 claims description 26
- 230000001965 increasing effect Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D23/00—General constructional features
- F25D23/02—Doors; Covers
- F25D23/028—Details
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2323/00—General constructional features not provided for in other groups of this subclass
- F25D2323/02—Details of doors or covers not otherwise covered
- F25D2323/024—Door hinges
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Refrigerator Housings (AREA)
- Closing And Opening Devices For Wings, And Checks For Wings (AREA)
Abstract
The invention provides a door body hinge mechanism and a refrigerator, wherein the door body hinge mechanism comprises a hinge seat, a hinge shaft arranged on the hinge seat and a power-assisted door closing device, and the power-assisted door closing device comprises: the flange part is arranged on the hinge seat and comprises a rear end, a front end, a first guide inclined plane and a second guide inclined plane; a slider; the elastic assembly is connected with the sliding piece and the door body, is in a compressed state in the process of opening and closing the door body, and drives the door body to rotate to enable the door body to be automatically closed when the elastic assembly drives the sliding piece to move towards the rear end along the first guide inclined plane; the damper comprises a damping wheel, a connecting rod and a first roller wheel, wherein the damping wheel provides damping force when the connecting rod rotates close to the sliding piece; the driving piece enables the first roller wheel to move along the second guide inclined plane and drives the connecting rod to rotate towards the position close to the sliding piece when the sliding piece moves towards the rear end along the first guide inclined plane; the door body is automatically and slowly closed, the door body is prevented from being quickly closed and colliding with the box body, and the door closing noise is reduced; and the structure is simple, and the operation is convenient.
Description
Technical Field
The invention relates to the field of refrigerating devices, in particular to a door body hinge mechanism which is simple in structure and can realize automatic slow door closing and a refrigerator with the door body hinge mechanism.
Background
At present, the power-assisted door closing mechanism on the refrigerator generally comprises the following mechanisms: 1. the magnetic strip type door seal is characterized in that the magnetic strip is arranged in the door seal on the door body, so that when a user closes the door body to a certain angle, the door can be automatically closed through the suction force of the magnetic strip, but the magnetic strip can reduce the heat insulation performance of the door seal; 2. when the refrigerator door is manually closed to a certain angle from the maximum door opening angle, the clamping hook on the plastic piece is in contact with the bulge at the edge of the hinge seat, and the door is continuously closed forcibly, the plastic clamping hook is elastically deformed until the plastic clamping hook crosses the bulge critical point, the door body is driven to be automatically closed under the action of the elastic restoring force of the plastic clamping hook, however, the elasticity of the plastic clamping hook is small, the door can be automatically closed only when the door handle is required to be closed to a small angle, and the plastic clamping hook is easy to wear and damage due to impact; 3. vertical spring-driven hinge means, when the refrigerator door from the biggest door opening angle department manual close to certain angle, the cam critical point is crossed to the thimble, under the effect of the elastic restoring force of vertical spring, drive thimble reaction force in the cam, make the cam rotatory and drive a body self-closing, however, the structure is complicated, the cost is higher, only be applicable to the high-end refrigerator, and the vertical power that vertical spring provided is making the rotatory in-process of cam, vertical component is offset, lead to energy loss, efficiency is lower.
In view of the above, it is desirable to provide an improved door hinge mechanism and a refrigerator having the same to solve the above problems.
Disclosure of Invention
The invention aims to provide a door body hinge mechanism which is simple in structure and can realize automatic slow door closing and a refrigerator with the door body hinge mechanism.
In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a door body the hinge mechanism, includes the hinge seat, locates the hinge pin on the hinge seat, door body rotation connection in on the hinge pin, door body the hinge mechanism still includes helping hand door closing device, helping hand door closing device includes:
the flange part is arranged on the hinge seat and comprises a rear end, a front end, a first guide inclined plane and a second guide inclined plane, wherein the first guide inclined plane extends forwards from the rear end and towards the direction far away from the hinge shaft, and the second guide inclined plane is connected with the first guide inclined plane and the front end;
a slider that moves along the flange portion in a process of opening and closing the door body;
the elastic assembly is connected with the sliding piece and the door body, is in a compressed state in the process of opening and closing the door body, and drives the door body to rotate to automatically close the door body when the elastic assembly drives the sliding piece to move towards the rear end along the first guide inclined plane;
the damper comprises a damping wheel rotationally connected to the front side of the sliding part, a connecting rod connected with the damping wheel to drive the damping wheel to rotate, and a first roller wheel connected to one end, far away from the damping wheel, of the connecting rod, wherein the damping wheel provides damping force when the connecting rod rotates towards the position close to the sliding part;
and the driving piece enables the first roller wheel to move along the second guide inclined plane and drives the connecting rod to rotate towards the position close to the sliding piece when the sliding piece moves to the rear end along the first guide inclined plane.
As a further improved technical solution of the present invention, the power-assisted door closing device further includes a housing for being fixed to a door body, the sliding member is rotatably connected to the elastic assembly, the power-assisted door closing device further includes a position limiting member fixedly connected to the sliding member for limiting the sliding member, and one end of the position limiting member, which is far away from the sliding member, is rotatably connected to the housing; one end of the elastic component, which is far away from the sliding part, is rotatably connected to the shell.
As a further improved technical scheme of the present invention, the driving member is a torsion spring, the torsion spring is sleeved on the damping wheel, and one end of the torsion spring abuts against one end of the connecting rod close to the damping wheel, and the other end abuts against one end of the sliding member close to the damping wheel; and in the process that the sliding piece moves towards the rear end along the first guide inclined plane, the torsion spring is in a compressed state.
As a further improved technical solution of the present invention, the limiting member is connected to the front side of the sliding member, and the damping wheel is rotatably connected to one end of the limiting member away from the sliding member; the driving piece is a torsion spring, the torsion spring sleeve is arranged on the damping wheel, one end of the torsion spring is abutted against one end, close to the damping wheel, of the connecting rod, and the other end of the torsion spring is abutted against one end, close to the damping wheel, of the limiting piece.
As a further improved technical solution of the present invention, the elastic assembly includes an elastic member body, a first fixing block located at an end of the elastic member body away from the hinge base, and a second fixing block located at an end of the elastic member body close to the hinge base, wherein the first fixing block is rotatably connected to the housing, and the second fixing block is rotatably connected to the sliding member.
As a further improved technical solution of the present invention, the elastic assembly further includes a telescopic rod, one end of the telescopic rod is connected to the first fixed block, the other end of the telescopic rod is connected to the second fixed block, and a telescopic direction of the telescopic rod is the same as a deformation direction of the elastic member body.
As a further improved technical scheme of the invention, the elastic piece body is a spring sleeved on the telescopic rod.
As a further improved technical solution of the present invention, the sliding member includes a fixed seat connected to the elastic assembly, a second roller located on a side of the fixed seat away from the elastic assembly, and a rotating shaft rotatably connecting the roller to the fixed seat, the rotating shaft extending in an up-and-down direction; and in the process of opening and closing the door body, the second roller rolls along the periphery of the flange part.
As a further improved technical solution of the present invention, the door closing assisting device further includes an eccentric cam fixedly connected to the hinge shaft, and the eccentric cam includes the flange portion.
In order to achieve the purpose, the invention further provides a refrigerator, which comprises a refrigerator body, a door body and the door body hinge mechanism, wherein the hinge seat is installed on the refrigerator body, and the power-assisted door closing device is fixed on the door body; the door body is concavely provided with an accommodating cavity for accommodating the power-assisted door closing device.
The invention has the beneficial effects that: according to the power-assisted door closing device in the door body hinge mechanism, the damper rotationally connected with the sliding piece is arranged, so that damping force is provided when the sliding piece moves towards the rear end along the first guide inclined plane to drive the door body to rotate and automatically close, and the moving speed of the sliding piece towards the rear end is slowed down, so that the door body is automatically and slowly closed, the door body is prevented from being rapidly closed and colliding with a box body, and the door closing noise is reduced; and the structure is simple, and the operation is convenient.
Drawings
Fig. 1 is a schematic structural view of a door hinge mechanism in a closed state of a door according to the present invention.
Fig. 2 is a schematic view of the door hinge mechanism shown in fig. 1 with a housing removed.
Fig. 3 is an exploded view of the door hinge mechanism shown in fig. 1.
Detailed Description
The present invention will be described in detail with reference to the embodiments shown in the drawings, and reference is made to fig. 1 to 3, which are preferred embodiments of the present invention.
Referring to fig. 1 to 3, a door hinge mechanism 100 according to the present invention is shown, where the door hinge mechanism 100 is used to be installed on a device having a door to automatically close the door, and at the same time, the door can be slowly closed to avoid collision between the door and a box body due to rapid closing, and reduce door closing noise.
The door body hinge mechanism 100 comprises a hinge seat 1 and a power-assisted door closing device 2 for assisting in closing the door, wherein when the door body is closed, the power-assisted door closing device 2 provides power to automatically and slowly close the door body.
Specifically, the hinge seat 1 comprises a fixing portion 11 for being fixed on a box body and a hinge seat body 12 connected with the fixing portion 11 to be matched with the door body, a plane where the hinge seat body 12 is located is in a horizontal state, a hinge shaft 13 extending in a vertical direction is arranged on the hinge seat body 12, and the door body is rotatably connected to the hinge seat 1 through the hinge shaft 13, so that the door body can be opened and closed by rotating the door body.
The power-assisted door closing device 2 includes a flange 21 provided on the hinge base 1, a housing 22 fixed to the door, an elastic assembly 23 extending in a horizontal direction, a slider 24 moving along a periphery of the flange 21 in a process of opening and closing the door, a damper 25 for slowly closing the door, and a driving member (not shown), wherein the elastic assembly 23 connects the slider 24 and the door.
In this embodiment, the door closing assisting apparatus 2 further comprises an eccentric cam 27 fixedly connected to the hinge shaft 13, and the eccentric cam 27 comprises the flange portion 21, that is, the flange portion 21 is a part of the eccentric cam 27, but in other embodiments, the flange portion 21 may be integrally formed with the hinge base 1, that is, a part of the hinge base 1.
Specifically, the eccentric cam 27 further includes a fixing portion 271 connected to the flange portion 21 for fixedly connecting with the hinge shaft 13.
The section of the portion of the hinge shaft 13 that is engaged with the fixing portion 271 is non-circular, and the fixing portion 271 is provided with a shaft hole 2711 that is engaged with the shape of the hinge shaft 13, so that the eccentric cam 27 cannot rotate around the hinge shaft 13 after the eccentric cam 27 is fixed to the hinge shaft 13.
Of course, the hinge shaft 13 and the eccentric cam 27 may be connected together by a pin to limit the eccentric cam 27 from rotating around the hinge shaft 13.
The flange portion 21 includes a rear end 211, a front end 212, a first guiding inclined plane 213 extending forward from the rear end 211 and in a direction away from the hinge shaft 13, and a second guiding inclined plane 214 connecting the first guiding inclined plane 213 and the front end 212, in this embodiment, the first guiding inclined plane 213 and the second guiding inclined plane 214 are arc-shaped.
Wherein a connection point of the first guiding inclined plane 213 and the second guiding inclined plane 214 is a critical point. When the door body is in a closed state, the sliding part 24 is located at the rear end 211, and after the door body is opened to a maximum door opening angle, the sliding part 24 is located at the front end 212.
In the process that the sliding member 24 moves from the rear end 211 along the first guiding inclined surface 213 to the critical point or from the front end 212 along the second guiding inclined surface 214 to the critical point, the compression amount of the elastic element 23 is gradually increased, and accordingly, the elastic restoring force of the elastic element 23 is gradually increased, it can be understood that when the sliding member 24 moves to the critical point, the compression amount of the elastic element 23 is maximum, and accordingly, the elastic restoring force of the elastic element 23 is maximum.
Meanwhile, in the process of opening and closing the door body, the sliding member 24 always abuts against the flange portion 21 and moves along the flange portion 21 under the elastic restoring force of the elastic member 23.
Specifically, in the process of closing the door body by a user, after the door body is manually closed until the sliding member 24 is located at the critical point, the door body is slightly pushed towards the door closing direction to move the sliding member 24 to the first guide inclined surface 213, and the sliding member 24 always abuts against the first guide inclined surface 213 and moves towards the rear end 211 along the first guide inclined surface 213 under the action of the elastic restoring force of the elastic assembly 23, so as to provide assistance for the door body, drive the door body to rotate to automatically close the door body, and the door body closing device is simple in structure, convenient to operate, and relatively stable in operation.
Similarly, in the process of opening the door body by a user, after the door body is manually opened until the sliding member 24 is located at the critical point, the door body is slightly pulled towards the door opening direction to move the sliding member 24 to the second guiding inclined surface 214, and the sliding member 24 always abuts against the second guiding inclined surface 214 and moves towards the front end 212 along the second guiding inclined surface 214 under the action of the elastic restoring force of the elastic component 23, so as to provide assistance for the door body, and drive the door body to rotate to automatically open the door body.
The sliding member 24 includes a fixing seat 241 connected to the elastic component 23, a second roller 242 located on a side of the fixing seat 241 away from the elastic component 23, and a rotating shaft 243 for rotatably connecting the second roller 242 to the fixing seat 241, wherein the rotating shaft 243 extends in an up-and-down direction; in the door opening and closing process, the second roller 242 rolls along the flange portion 21 to reduce friction between the sliding member 24 and the flange portion 21 in the door opening and closing process, so that the sliding member 24 can move along the flange portion 21, and a user can open and close the door conveniently.
Specifically, in the present embodiment, the slider 24 is rotatably connected to the elastic assembly 23, so that, in the process of moving the slider 24 along the flange portion 21, the slider 24 can rotate in comparison with the elastic assembly 23 according to the shape of the flange portion 21 in contact with the slider 24, so that the second roller 242 of the slider 24 can always abut against the flange portion 21 and roll along the flange portion 21, thereby enhancing the stability of the operation of the assisted door closing device 2 in the process of opening and closing the door body.
When the sliding element 24 is rotatably connected to the elastic element 23, one end of the elastic element 23, which is far away from the sliding element 24, is also rotatably connected to the housing 22, and meanwhile, the power-assisted door closing device 2 further includes a limiting element 28 fixedly connected to the sliding element 24 to limit the sliding element 24, and one end of the limiting element 28, which is far away from the sliding element 24, is rotatably connected to the housing 22.
It can be understood that a connecting line between the axis of rotation of the limiting member 28 and the axis of rotation of the elastic component 23, the limiting member 28 and the elastic component 23 enclose a triangle, and in the process of opening and closing the door body, the length of the elastic component 23 changes, so as to link the limiting member 28 and the elastic component 23 to rotate by a certain angle.
Specifically, the limiting member 28 is fixedly connected to the fixing seat 241 and located at the front side of the sliding member 24.
In the process of opening and closing the door body to move the slider 24 along the flange portion 21, the stopper 28, on one hand, limits the rotation angle of the slider 24 relative to the elastic component 23, so as to prevent the slider 24 from separating from the flange portion 21 under the elastic restoring force of the elastic component 23, and make the second roller 242 always abut against the flange portion 21 and move along the periphery of the flange portion 21; on the other hand, the elastic assembly 23 is linked to finely adjust the position of the elastic assembly 23, so that the running stability of the power-assisted door closing device 2 is enhanced in the process of opening and closing the door body.
Meanwhile, the elastic component 23 is connected with the shell 22, so that the elastic component 23 is indirectly connected with the door body to drive the door body to rotate.
The horizontal direction is not limited to a standard horizontal direction, i.e. the extending direction of the elastic member 23 may have a small angle with the horizontal direction.
In the process of opening and closing the door body, the sliding part 24 moves along the flange part 21, meanwhile, the elastic component 23 is in a compressed state, and under the elastic restoring force of the elastic component 23 and the limiting action of the limiting part 28, the sliding part 24 can always abut against the flange part 21 and move along the flange part 21, so that the assisting force can be provided in the door closing and/or opening process, and the automatic door closing and/or opening can be realized.
Specifically, the elastic assembly 23 includes an elastic member body 231, a first fixing block 232 located at an end of the elastic member body 231 remote from the hinge base 1, and a second fixing block 233 located at an end of the elastic member body 231 near the hinge base 1.
The first fixing block 232 is rotatably connected to the housing 22, so that the elastic component 23 is rotatably connected to the housing 22, and can rotate by a certain angle under the linkage action of the limiting member 25, thereby enhancing the stability of the operation of the power-assisted door closing device 2 in the process of opening and closing the door body.
The second fixing block 233 is rotatably connected to the fixing base 241, so that, in the process that the sliding element 24 moves along the flange portion 21, the sliding element 24 can rotate relative to the elastic component 23 according to the shape of the flange portion 21 in contact with the sliding element, so that the second roller 242 of the sliding element 24 can always abut against the flange portion 21 and roll along the flange portion 21, and the running stability of the door closing assisting device 2 is enhanced in the process of opening and closing the door body.
The elastic body 231 is a spring, but the elastic body 231 may be other elastic members.
Further, the elastic assembly 23 further includes a telescopic rod 234, one end of the telescopic rod 234 is connected to the first fixing block 232, the other end of the telescopic rod 234 is connected to the second fixing block 233, and the telescopic rod 234 extends in the same direction as the elastic member body 231, so that the spring is prevented from bending and the sliding member 24 moves in the direction of deformation of the spring during the movement of the sliding member 24 along the flange portion 21.
In the process of opening the door, the sliding member 24 moves along the first guiding inclined plane 213 in the direction away from the rear end 211, and at the same time, the sliding member 24 drives the second fixing block 233 to move in the direction close to the first fixing block 232, and at this time, the telescopic rod 234 is in the contracted state to reduce the length of the telescopic rod 234, so that the length of the telescopic rod 234 is consistent with the length of the spring, and the spring is in the compressed state.
In the process of closing the door, after the user manually closes the door body to move the sliding member 24 to the critical point, the sliding member 24 abuts against the first guiding inclined surface 213 under the action of the elastic restoring force of the spring, and meanwhile, the second fixing block 233 moves in the direction away from the first fixing block 232 under the action of the elastic restoring force of the spring and drives the sliding member 24 to move towards the rear end along the first guiding inclined surface 213, so as to drive the door body to rotate and automatically close, and at this time, the telescopic rod 234 is driven by the sliding member 24 to be in an extended state.
Specifically, the spring is sleeved on the extension rod 234.
The damper 25 includes a damping wheel 251 rotatably connected to a front side of the slider 24, a link 252 connected to the damping wheel 251 to rotate the damping wheel 251, and a first roller 253 connected to an end of the link 252 remote from the damping wheel 251, wherein the damping wheel 251 provides a damping force when the link 252 rotates toward the slider 24.
Specifically, the damping wheel 251 includes a damping rotating shaft 2511 and a damping wheel body 2512 rotatably connected to the damping rotating shaft 2511, and the damping wheel 251 is rotatably connected to the slider 24 through the damping rotating shaft 2511.
Further, the damping wheel 251 is rotatably connected to an end of the limiting member 28 away from the sliding member 24, that is, the damping wheel 251 is indirectly rotatably connected to the sliding member 24 by being rotatably connected to the limiting member 28.
Specifically, the damping wheel 251 is rotatably connected to the limiting member 28 through the damping rotating shaft 2511. Meanwhile, the housing 22 is provided with a rotating shaft hole 221 matched with the damping rotating shaft 2511, so that the limiting member 28 can be rotatably connected to the housing 22 through the damping rotating shaft 2511, and the structure of the power-assisted door closing device 2 is simplified.
The driving member (not shown) is configured to move the first roller 253 along the second guiding inclined surface 214 and drive the link 252 to rotate in a direction approaching the slider 24 when the slider 24 moves to the rear end along the first guiding inclined surface 213.
That is, in the process of closing the door body by a user, after the door body is manually closed until the sliding member 24 is located at the critical point, the door body is slightly pushed towards the door closing direction to move the sliding member 24 to the first guiding inclined plane 213, and the sliding member 24 moves towards the rear end 211 along the first guiding inclined plane 213 under the action of the elastic restoring force of the elastic component 23 and drives the door body to rotate so as to automatically close the door body; meanwhile, the first roller 253 moves along the second guiding inclined surface 214, the driving element (not shown) drives the connecting rod 252 to rotate in a direction approaching to the slider 24, and under the action of the damping force of the damping wheel 251, the speed of the connecting rod 252 moving towards the slider 24 is slowed, that is, a reverse force is provided for the slider 24 to move the slider 24 in a direction away from the rear end, so that the speed of the slider 24 moving towards the rear end can be slowed, the door body is automatically and slowly closed, the door body is prevented from being quickly closed and colliding with a box body, and the door closing noise is reduced.
Specifically, the driving member (not shown) is a torsion spring, the torsion spring is sleeved on the damping wheel 251, one end of the torsion spring abuts against one end of the connecting rod 252 close to the damping wheel 251, and the other end abuts against one end of the limiting member 28 close to the damping wheel 251; and when the torsion spring is in a free state, an included angle between the connecting rod 252 and the limiting member 28 is an acute angle.
In the process of driving the slider 24 to move from the front end 212 to the critical point along the second guiding inclined surface 214 in the door closing process, after the first roller 253 contacts with the second guiding inclined surface 214, the link 252 is pressed to move the link 252 in the direction away from the slider 24, so that the torsion spring is in a compressed state after the slider 24 moves to the critical point, and thus, in the process of moving the slider 24 to the rear end along the first guiding inclined surface 213 under the action of the elastic restoring force of the elastic component 23, the link 252 has a force rotating in the direction of the slider 24 under the action of the elastic restoring force of the torsion spring, so that the first roller 253 always abuts against the second guiding inclined surface 214 and moves along the second guiding inclined surface 214 under the driving of the slider 24, and simultaneously drives the damping wheel 251 to rotate when the link 252 rotates towards the slider 24, under the action of the damping force of the damping wheel 251, the speed of the connecting rod 252 moving towards the sliding part 24 is slowed, that is, an opposite force is provided for the sliding part 24 to make the sliding part 24 move towards the direction away from the rear end, so that the speed of the sliding part 24 moving towards the rear end can be slowed down, the door body is automatically and slowly closed, the door body is prevented from being quickly closed and colliding with a box body, and the door closing noise is reduced.
Meanwhile, it can be understood that, in the process that the sliding member 24 moves towards the rear end along the first guiding inclined surface 213 under the action of the elastic restoring force of the elastic assembly 23, the elastic restoring force of the torsion spring also indirectly acts on the second roller 242, so as to increase the friction between the second roller 242 and the flange portion 21, thereby increasing the resistance of the second roller 242 moving towards the rear end 211, further slowing down the moving speed of the sliding member 24 towards the rear end, so that the door body is automatically and slowly closed, the door body is prevented from being quickly closed and colliding with a box body, and the door closing noise is reduced.
Further, the damping wheel 251 has no damping force when the connecting rod 252 rotates away from the slider 24, that is, the damping wheel 251 is a one-way damping wheel, so that, in the process of opening the door, the slider 24 moves from the rear end 211 along the first guiding inclined plane 213 to the critical point, the connecting rod 252 is driven to move away from the slider 24, and meanwhile, the connecting rod 252 drives the damping wheel 251 to rotate, at this time, the damping wheel 251 has no damping force, thereby facilitating the opening of the door body.
Further, the housing 22 is rotatably connected to the hinge shaft 13, so that the operation stability of the power-assisted door closing device 2 is further enhanced in the process of opening and closing the door body.
Further, the invention also provides a refrigerator with the door body hinge mechanism 100, and the refrigerator comprises a refrigerator body, a door body and the door body hinge mechanism 100. The hinge seat 1 is arranged on the box body, and the power-assisted door closing device 2 is arranged on the door body.
Furthermore, the door body is concavely provided with a containing cavity for containing the power-assisted door closing device 2, and after the power-assisted door closing device 2 is installed on the door body, the power-assisted door closing device 2 is contained in the containing cavity, so that the overall appearance effect of the door body is enhanced.
In summary, the power-assisted door closing device 2 in the door body hinge mechanism 100 of the present invention is provided with the damper 25 rotatably connected to the sliding member 24, so as to provide a damping force when the sliding member 24 moves along the first guiding inclined plane 213 toward the rear end to drive the door body to rotate and automatically close, and slow down the speed of the sliding member 24 moving toward the rear end, thereby automatically and slowly closing the door body, avoiding the door body from colliding with the box body when the door body is quickly closed, and reducing the door closing noise; and the structure is simple, and the operation is convenient.
It should be understood that although the present description refers to embodiments, not every embodiment contains only a single technical solution, and such description is for clarity only, and those skilled in the art should make the description as a whole, and the technical solutions in the embodiments can also be combined appropriately to form other embodiments understood by those skilled in the art.
The above-listed detailed description is only a specific description of a possible embodiment of the present invention, and they are not intended to limit the scope of the present invention, and equivalent embodiments or modifications made without departing from the technical spirit of the present invention should be included in the scope of the present invention.
Claims (10)
1. The utility model provides a door body the hinge mechanism, includes the hinge seat, locates hinge pin on the hinge seat, door body rotate connect in on the hinge pin, its characterized in that: the door body the hinge mechanism still includes helping hand door closing device, helping hand door closing device includes:
the flange part is arranged on the hinge seat and comprises a rear end, a front end, a first guide inclined plane and a second guide inclined plane, wherein the first guide inclined plane extends forwards from the rear end and towards the direction far away from the hinge shaft, and the second guide inclined plane is connected with the first guide inclined plane and the front end;
a slider that moves along the flange portion in a process of opening and closing the door body;
the elastic assembly is connected with the sliding piece and the door body, is in a compressed state in the process of opening and closing the door body, and drives the door body to rotate to automatically close the door body when the elastic assembly drives the sliding piece to move towards the rear end along the first guide inclined plane;
the damper comprises a damping wheel rotationally connected to the front side of the sliding part, a connecting rod connected with the damping wheel to drive the damping wheel to rotate, and a first roller wheel connected to one end, far away from the damping wheel, of the connecting rod, wherein the damping wheel provides damping force when the connecting rod rotates towards the position close to the sliding part;
and the driving piece enables the first roller wheel to move along the second guide inclined plane and drives the connecting rod to rotate towards the position close to the sliding piece when the sliding piece moves to the rear end along the first guide inclined plane.
2. The door body hinge mechanism according to claim 1, characterized in that: the power-assisted door closing device further comprises a shell fixed on the door body, the sliding piece is rotatably connected with the elastic assembly, the power-assisted door closing device further comprises a limiting piece fixedly connected to the sliding piece to limit the sliding piece, and one end, far away from the sliding piece, of the limiting piece is rotatably connected to the shell; one end of the elastic component, which is far away from the sliding part, is rotatably connected to the shell.
3. The door body hinge mechanism according to claim 1, characterized in that: the driving piece is a torsion spring which is sleeved on the damping wheel, one end of the torsion spring is abutted against one end, close to the damping wheel, of the connecting rod, and the other end of the torsion spring is abutted against one end, close to the damping wheel, of the sliding piece; and in the process that the sliding piece moves towards the rear end along the first guide inclined plane, the torsion spring is in a compressed state.
4. The door body hinge mechanism according to claim 2, characterized in that: the limiting piece is connected to the front side of the sliding piece, and the damping wheel is rotatably connected to one end, away from the sliding piece, of the limiting piece; the driving piece is a torsion spring, the torsion spring sleeve is arranged on the damping wheel, one end of the torsion spring is abutted against one end, close to the damping wheel, of the connecting rod, and the other end of the torsion spring is abutted against one end, close to the damping wheel, of the limiting piece.
5. The door body hinge mechanism according to claim 2, characterized in that: the elastic assembly comprises an elastic part body, a first fixed block and a second fixed block, the first fixed block is located at one end, far away from the hinge seat, of the elastic part body, the second fixed block is located at one end, close to the hinge seat, of the elastic part body, the first fixed block is rotatably connected to the shell, and the second fixed block is rotatably connected to the sliding part.
6. The door body hinge mechanism according to claim 5, characterized in that: the elastic component further comprises a telescopic rod, one end of the telescopic rod is connected to the first fixing block, the other end of the telescopic rod is connected to the second fixing block, and the telescopic direction of the telescopic rod is the same as the deformation direction of the elastic part body.
7. The door body hinge mechanism according to claim 6, characterized in that: the elastic piece body is a spring sleeved on the telescopic rod.
8. The door body hinge mechanism according to claim 1 or 2, characterized in that: the sliding part comprises a fixed seat connected with the elastic component, a second roller positioned on one side of the fixed seat far away from the elastic component, and a rotating shaft for rotatably connecting the roller to the fixed seat, and the rotating shaft extends along the vertical direction; and in the process of opening and closing the door body, the second roller rolls along the periphery of the flange part.
9. The door body hinge mechanism according to claim 1, characterized in that: the power-assisted door closing device further comprises an eccentric cam fixedly connected to the hinge shaft, and the eccentric cam comprises the flange portion.
10. A refrigerator, characterized in that: the refrigerator comprises a refrigerator body, a door body and the door body hinge mechanism according to any one of claims 1 to 9, wherein the hinge seat is arranged on the refrigerator body, and the power-assisted door closing device is fixed on the door body; the door body is concavely provided with an accommodating cavity for accommodating the power-assisted door closing device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711492178.2A CN108061423B (en) | 2017-12-30 | 2017-12-30 | Door body hinge mechanism and refrigerator with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711492178.2A CN108061423B (en) | 2017-12-30 | 2017-12-30 | Door body hinge mechanism and refrigerator with same |
Publications (2)
| Publication Number | Publication Date |
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| CN108061423A CN108061423A (en) | 2018-05-22 |
| CN108061423B true CN108061423B (en) | 2020-10-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711492178.2A Active CN108061423B (en) | 2017-12-30 | 2017-12-30 | Door body hinge mechanism and refrigerator with same |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109403760B (en) * | 2018-11-19 | 2024-05-31 | 林旭伟 | Door stopper |
| CN111750600B (en) * | 2019-03-27 | 2021-08-24 | 苏州三星电子有限公司 | Door body assist drive device and refrigerator |
| CN113415984A (en) * | 2021-06-16 | 2021-09-21 | 浙江富乐德石英科技有限公司 | Automatic precision firing device of quartz ring products |
Citations (2)
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|---|---|---|---|---|
| CN101636548A (en) * | 2007-02-19 | 2010-01-27 | 利勃海尔-家用电器奥克森豪森有限责任公司 | Refrigerator and/or freezer |
| CN105960500A (en) * | 2014-02-13 | 2016-09-21 | 海蒂诗-欧尼有限公司及两合公司 | Bearing arrangement for door |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0556832A (en) * | 1991-08-31 | 1993-03-09 | Sanyo Electric Co Ltd | Refrigerated case |
| KR0142059B1 (en) * | 1994-07-29 | 1998-07-01 | 배순훈 | Hinge structure of a refrigerator |
| DE202007004621U1 (en) * | 2007-03-29 | 2008-08-07 | Hettich-Oni Gmbh & Co. Kg | Multilink hinge |
| CN201355169Y (en) * | 2009-03-04 | 2009-12-02 | 徐国新 | Refrigerator door hinge |
| CN201731721U (en) * | 2010-06-23 | 2011-02-02 | 胡利民 | Embedded type refrigerator door hinge |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101636548A (en) * | 2007-02-19 | 2010-01-27 | 利勃海尔-家用电器奥克森豪森有限责任公司 | Refrigerator and/or freezer |
| CN105960500A (en) * | 2014-02-13 | 2016-09-21 | 海蒂诗-欧尼有限公司及两合公司 | Bearing arrangement for door |
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| CN108061423A (en) | 2018-05-22 |
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Address after: 266101 No. 1 Haier Road, Laoshan District, Shandong, Qingdao Patentee after: Haier Smart Home Co., Ltd. Address before: 266101 Haier Industrial Park, Haier Road, Laoshan District, Shandong, Qingdao, China Patentee before: Qingdao Haier Joint Stock Co.,Ltd. |
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