CN108868422B - Embedded refrigerator buffering hinge without hovering - Google Patents

Embedded refrigerator buffering hinge without hovering Download PDF

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Publication number
CN108868422B
CN108868422B CN201810701979.3A CN201810701979A CN108868422B CN 108868422 B CN108868422 B CN 108868422B CN 201810701979 A CN201810701979 A CN 201810701979A CN 108868422 B CN108868422 B CN 108868422B
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CN
China
Prior art keywords
transmission
hinge
connecting rod
shaft
seat
Prior art date
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Active
Application number
CN201810701979.3A
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Chinese (zh)
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CN108868422A (en
Inventor
胡涛
杨文明
张翔
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu Jiuxing Precision Technology Group Co ltd
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Jiangsu Jiuxing Precision Technology Group Co ltd
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Application filed by Jiangsu Jiuxing Precision Technology Group Co ltd filed Critical Jiangsu Jiuxing Precision Technology Group Co ltd
Priority to CN201810701979.3A priority Critical patent/CN108868422B/en
Publication of CN108868422A publication Critical patent/CN108868422A/en
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Publication of CN108868422B publication Critical patent/CN108868422B/en
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Classifications

    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05FDEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F3/00Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices
    • E05F3/20Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices in hinges
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05DHINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D3/00Hinges with pins
    • E05D3/06Hinges with pins with two or more pins
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05FDEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F1/00Closers or openers for wings, not otherwise provided for in this subclass
    • E05F1/08Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings
    • E05F1/10Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance
    • E05F1/12Mechanisms in the shape of hinges or pivots, operated by springs
    • E05F1/1246Mechanisms in the shape of hinges or pivots, operated by springs with a coil spring perpendicular to the pivot axis
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05FDEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F1/00Closers or openers for wings, not otherwise provided for in this subclass
    • E05F1/08Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings
    • E05F1/10Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance
    • E05F1/14Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance with double-acting springs, e.g. for closing and opening or checking and closing no material
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00General constructional features
    • F25D23/02Doors; Covers
    • F25D23/028Details
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05YINDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00Application of doors, windows, wings or fittings thereof
    • E05Y2900/30Application of doors, windows, wings or fittings thereof for domestic appliances
    • E05Y2900/31Application of doors, windows, wings or fittings thereof for domestic appliances for refrigerators
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2323/00General constructional features not provided for in other groups of this subclass
    • F25D2323/02Details of doors or covers not otherwise covered
    • F25D2323/024Door hinges

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Refrigerator Housings (AREA)

Abstract

The invention provides an embedded refrigerator buffer hinge without hovering, which comprises a fixed seat, a hinge seat and a hinge transmission group hinged between the fixed seat and the hinge seat, wherein the hinge transmission group comprises a transmission arm and a transmission connecting rod; the transmission arm is hinged with an elastic buffer device, the front end of the transmission connecting rod is provided with a connecting column, the transmission connecting rod is matched with a rotating connecting structure of the connecting column through the elastic buffer device, the self-opening or closing power assisting device is used for providing self-opening or closing power assistance for the hinge seat, so that the refrigerator door body is convenient to operate, and is in a free opening state when the refrigerator door body is opened at a certain angle, and the use flexibility is high.

Description

Embedded refrigerator buffering hinge without hovering
Technical Field
The invention relates to the field of refrigerator hinges, in particular to an embedded refrigerator buffer hinge without hovering.
Background
The refrigerator hinge is a connecting piece for rotating and opening a refrigerator door body which is most commonly used at present, and in order to achieve good closing performance between the refrigerator door body and the refrigerator cabinet body after the refrigerator door body is opened or closed, a six-bar transmission mechanism is generally adopted in the existing refrigerator hinge.
However, the current refrigerator hinge has the following disadvantages:
1. the elastic buffer is arranged in the rear transmission arm and is pushed to work by a boss on the hinge seat, and when the rear transmission arm rotates, the rotating shaft of the boss is always in a fixed state, so that the spring is influenced by radial stress when the spring is jacked, the radial deformation of the spring is easy to occur, and the stress is uneven;
2. the traditional elastic buffer is arranged in the rear transmission arm, the rotating force arm of the hinge seat is less, so that the thrust required by the rotation of the refrigerator door body is larger, and the operation is inconvenient;
3. the refrigerator hinge has more parts, and after the refrigerator door body is closed, the gaps among the parts in the hinge are larger, so that the assembly volume is increased, and water vapor, dirt and the like are easily accumulated.
Accordingly, the conventional refrigerator hinge still needs to be further improved.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides an embedded refrigerator buffer hinge without hovering, which has the advantages of simplified structure, good buffer effect, reduced occupied space, prevention of accumulation of water vapor, dirt and the like when a refrigerator door body is closed by utilizing an embedded folding mode, and high use flexibility, and meanwhile, the embedded refrigerator buffer hinge has the assistance of self-closing and self-opening so as to realize convenient operation of the refrigerator door body and the free opening state of the refrigerator door body when the refrigerator door body is opened at a certain angle.
The invention aims at realizing the following steps: the embedded refrigerator buffering hinge without hovering comprises a fixed seat arranged on a refrigerator frame body, a hinge seat arranged on a refrigerator door body and a hinge transmission group hinged between the fixed seat and the hinge seat, wherein the hinge transmission group comprises a transmission arm and a transmission connecting rod, the transmission connecting rod is provided with a transmission connection group which is folded in sequence towards the fixed seat by taking a hinge point hinged with the fixed seat as a fixed point rotation, enables the hinge seat and the transmission arm to be embedded on the fixed seat, the front end of the transmission connection group is hinged on the fixed seat, and the rear end of the transmission connection group is respectively hinged on the transmission connecting rod and the hinge seat;
the transmission arm is hinged with an elastic buffer device for applying buffering elastic pressure to the hinge seat, the transmission connecting rod is provided with a connecting column which is connected with the elastic buffer device when rotating so as to enable the hinge seat to be automatically folded or automatically opened on the fixing seat or separated from the elastic buffer device when rotating so as to enable the hinge seat to be in a free open state, and the connecting column positioning shaft is connected with the front end of the transmission connecting rod;
the fixed seat is provided with a buffer damper, the cylinder body of the buffer damper is detachably arranged on the fixed seat, and the front end of the transmission connecting rod is connected with the pushing rod of the buffer damper when the transmission connecting rod is folded towards the fixed seat.
According to the optimization, the transmission connection group comprises a transmission supporting rod and a transmission swinging rod, wherein the front end of the transmission supporting rod is hinged to the fixed seat through a supporting rod shaft, the rear end of the transmission supporting rod is hinged to the middle of the transmission connecting rod through a connecting shaft, the front end of the transmission swinging rod is hinged to the middle of the transmission supporting rod through a swinging shaft, and the rear end of the transmission swinging rod is hinged to the front part of the hinge seat through a positioning shaft;
the fixed seat is provided with an installation shaft hinged with the front end of the transmission arm, the transmission arm is provided with a switching shaft hinged with the transmission connecting rod, and the transmission connecting rod is provided with a hinge shaft hinged with the hinge seat.
According to the optimization, the upper end of the transmission supporting rod is provided with the clearance groove, and the connecting column is connected with the clearance groove while rotating along with the transmission connecting rod to separate from the elastic buffer device, or is connected with the elastic buffer device in a rotating way while rotating along with the transmission connecting rod to separate from the clearance groove.
According to the optimization, the lower end of the transmission supporting rod is provided with the buckling groove, and the buckling groove is opened along with the outward rotation of the transmission connecting rod so as to be matched with the positioning shaft for buckling, or the buckling groove is folded along with the inward rotation of the transmission connecting rod so as to be separated from the positioning shaft.
According to the optimization, the front end of the elastic buffer device is hinged on the transmission arm through the fixed shaft, and the rear end of the elastic buffer device is provided with a groove position for rotating connection with the connecting column.
According to the optimization, the groove positions are connected with the connecting column in an outward rotating mode by taking the fixed shafts as fixed points, so that the elastic buffer device and the transmission connecting rod form an included angle which enables the hinge base to be folded from 0 degrees to 30 degrees for the fixed base under the action of the elastic buffer device.
According to the optimization, the groove positions are connected with the connecting column in a rotating mode by taking the fixed shaft as a fixed point, so that the elastic buffer device and the transmission connecting rod form an included angle which enables the hinge base to be opened at 30-60 degrees for the fixed seat under the action of the elastic buffer device.
According to the optimization, the groove positions are rotated inwards and outwards from the connecting column by taking the fixed shaft as a fixed point, so that the elastic buffer device and the transmission connecting rod form an included angle of 60-115 degrees, and the hinge seat is in a free open state.
According to the optimization, the elastic buffer device comprises a spring connecting frame, a spring connecting rod and a spring piece, wherein the front end of the spring connecting rod is fixed on the transmission arm through a fixed shaft,
the spring connecting frame is sleeved on the spring connecting rod, the front end of the spring connecting frame is provided with a sliding groove which is in sliding connection with the fixed shaft, and the rear end of the spring connecting frame is provided with a sliding shaft which swings up and down with the fixed shaft as a fixed point;
the transmission arm is provided with a limit groove which is in sliding connection with the sliding shaft;
the spring piece is sleeved on the spring connecting rod, one end of the spring piece is propped against the spring connecting rod, and the other end of the spring piece is propped against the inner wall surface of the spring connecting frame;
the groove is arranged on the rear end of the spring connecting frame.
According to the optimization, the fixing seat is internally provided with a clamping groove which is buckled with the buffer damper, and the cylinder body of the buffer damper is provided with an upper clamping block and a lower clamping block which are matched and clamped with the mounting shaft and the clamping groove;
the front end of the transmission supporting rod is provided with a sliding arc surface which is in sliding connection with a pushing rod of the buffer damper.
The invention has the advantages that:
1) The transmission of the transmission arm, the transmission connecting rod and the transmission connecting group is matched, so that the transmission arm, the transmission connecting rod and the transmission connecting group are respectively rotated and folded by taking the hinge point hinged with the fixed seat as a fixed point, the hinge seat is rotated and folded by taking the hinge point hinged with the fixed seat as a fixed point and embedded on the fixed seat, after the refrigerator door body is closed, the gap of parts in the hinge is reduced, the assembly volume is reduced, and accumulation of water vapor, dirt and the like is avoided;
2) The rotating connecting structure of the connecting column matched with the elastic buffer device and the transmission connecting rod can apply buffer elastic pressure to the transmission connecting rod when the hinge seat rotates at 0-30 degrees, so that door closing assistance is provided for the hinge seat, the closing thrust of the refrigerator door body is reduced, or buffer elastic restoring force is applied to the transmission connecting rod by the elastic buffer device when the hinge seat rotates at an angle of 30-60 degrees, door opening assistance is provided for the hinge seat, the pulling force for opening the refrigerator door body is reduced, and the refrigerator door is convenient to operate and high in stability;
3) When the hinge seat rotates at an angle of 60-115 degrees, the elastic buffer device is rotated and separated from the connecting column of the transmission connecting rod, so that the hinge seat is in a free opening state, the refrigerator door body is in the free opening state, the use flexibility is high, the use effect of the refrigerator hinge is ensured, and the use quality of the refrigerator is ensured.
4) Under the effect of the buffer damper, the hinge can be in a folding and closing period, the push rod of the buffer damper is in sliding connection with the transmission connection group, buffer force is provided for the transmission connection group, collision of the refrigerator door body during closing is avoided, noise is reduced, smooth closing of the refrigerator door body is ensured, and the use quality of the refrigerator hinge is ensured.
Drawings
FIG. 1 is a schematic view showing a folded state according to a preferred embodiment of the present invention.
FIG. 2 is a partial cut-away view of a folded state according to a preferred embodiment of the present invention.
Fig. 3 is a schematic view of a semi-open state according to a preferred embodiment of the present invention.
Fig. 4 is a partial cut-out view of a half-open state according to a preferred embodiment of the present invention.
Fig. 5 is a schematic view showing a fully opened state according to the preferred embodiment of the present invention.
Fig. 6 is a cross-sectional view showing a fully opened state of the preferred embodiment of the present invention.
Fig. 7 is a partial cut-away view of the fully opened state of the preferred embodiment of the present invention.
Description of the embodiments
The invention is further described below with reference to the accompanying drawings.
According to the invention, as shown in fig. 1 to 7, the buffer hinge for embedded refrigerator without hovering comprises a fixed seat 1 installed on the refrigerator frame, a hinge seat 2 installed on the refrigerator door and a hinge transmission group hinged between the fixed seat 1 and the hinge seat 2, wherein the hinge transmission group comprises a transmission arm 3 and a transmission connecting rod 4. The transmission connecting rod 4 is provided with a transmission connecting group which is folded in sequence towards the direction of the fixed seat 1 by taking a hinge point hinged with the fixed seat 1 as a fixed point to rotate and fold, and is embedded on the fixed seat 1, the front end of the transmission connecting group is hinged on the fixed seat 1, and the rear ends of the transmission connecting group are respectively hinged on the transmission connecting rod 4 and the hinge seat 2.
That is, when the refrigerator is closed, the transmission arm 3, the transmission connecting rod 4 and the transmission connecting group are respectively folded by taking the hinge point hinged with the fixed seat 1 as a fixed point, so that after the refrigerator door body is closed, the hinge seat 2 can rotate and fold and embed on the fixed seat 1 by taking the hinge point hinged with the fixed seat 1 as a fixed point, the gap of parts in the hinge is reduced, the assembly volume is reduced, and accumulation of water vapor, dirt and the like is avoided.
As shown in fig. 1 to 7, the drive connection group preferably comprises a drive strut 9 and a drive rocker 10. The front end of the transmission supporting rod 9 is hinged to the fixed seat 1 through a supporting rod shaft 11, and the rear end of the transmission supporting rod 9 is hinged to the middle of the transmission connecting rod 4 through a connecting shaft 12. The front end of the transmission swing rod 10 is hinged with the middle part of the transmission supporting rod 9 through a swing shaft 13, and the rear end of the transmission swing rod 10 is hinged with the front part of the hinge base 2 through a positioning shaft 14. Wherein, the fixing base 1 is provided with a mounting shaft 15 hinged with the front end of the transmission arm 3, the transmission arm 3 is provided with a switching shaft 16 hinged with the transmission connecting rod 4, and the transmission connecting rod 4 is provided with a hinging shaft 17 hinged with the hinge base 2.
When the refrigerator door body is closed, the hinge seat 2 is folded inwards, and the transmission connecting rod 4 and the transmission swinging rod 10 are pushed to respectively rotate inwards by taking the connecting shaft 16 and the swinging shaft 13 as fixed points, and when the transmission connecting rod 4 and the transmission swinging rod 10 rotate to the specified positions, the transmission connecting rod 4 and the transmission swinging rod 10 are folded on the transmission arm 3 and the transmission supporting rod 9. Then, the hinge seat 2 continues to move inwards to drive the driving arm 3 and the driving support rod 9 to rotate inwards respectively by taking the mounting shaft 15 as a fixed point, so that the driving arm 3 and the driving support rod 9 are respectively embedded on the fixed seat 1, the hinge seat 2 is embedded on the fixed seat 1, the gap of parts in the hinge is reduced, the assembly volume is reduced, and accumulation of water vapor, dirt and the like is avoided.
In addition, the lower end of the transmission supporting rod 9 is provided with a buckling groove 19, and the buckling groove 19 is opened along with the outward rotation of the transmission connecting rod 4 to be matched with the positioning shaft 14 for buckling, or the buckling groove 19 is folded along with the inward rotation of the transmission connecting rod 4 to be separated from the positioning shaft 14.
When the refrigerator door body is opened, the hinge seat 2 is opened outwards, the transmission arm 3 and the transmission support rod 9 are driven to respectively rotate outwards by taking the mounting shaft 15 and the hinge shaft 17 as fixed points, and when the transmission arm 3 and the transmission support rod 9 rotate to the specified positions, the transmission connecting rod 4 and the transmission swing rod 10 respectively rotate outwards by taking the switching shaft 16 and the swing shaft 13 as fixed points. At this time, the swing shaft 13, the positioning shaft 14, the hinge shaft 17, and the switching shaft 16 form a four-side balance motion, so that the hinge base 2 is in a free open state at the fixing base 1. When the transmission connecting rod 4 and the transmission swinging rod 10 rotate to the specified positions, the buckling groove 19 is matched with the positioning shaft 14 in a buckling manner, so that the transmission swinging rod 10, the transmission connecting rod 4, the hinge seat 2 and the transmission supporting rod 9 are respectively positioned on the four-bar support frame, the hinge seat 2 is completely opened, the support strength is enhanced, the use stability is improved, and the use effect of the refrigerator door body is ensured. When the locking device is closed, the locking groove 19 is folded along with the inward rotation of the transmission connecting rod 4 so as to be separated from the positioning shaft 14, so that the locking device is convenient to operate, improves the running smoothness and stability and reduces the noise.
As shown in fig. 1 to 7, the transmission arm 3 is hinged with an elastic buffer device 5 for applying a buffering elastic pressure to the hinge base 2. The transmission connecting rod 4 is provided with a connecting column 7 which is connected with the elastic buffer device 5 when rotating so that the hinge seat 2 is automatically folded or automatically opened on the fixed seat 1 or is separated from the elastic buffer device 5 when rotating so that the hinge seat 2 is in a free open state, and the positioning shaft of the connecting column 7 is connected with the front end of the transmission connecting rod 4.
And the upper end of the transmission supporting rod 9 is provided with a clearance groove 18. The connecting column 7 is connected with the clearance groove 18 in a matched way while rotating along with the transmission connecting rod 4 to be separated from the elastic buffer device 5, or the connecting column 7 is connected with the elastic buffer device 5 in a rotating way while rotating along with the transmission connecting rod 4 to be separated from the clearance groove 18.
That is, the elastic buffer device 5 is used to apply buffer elastic pressure to the connecting post 7 of the driving connecting rod 4, so as to provide power for self-closing or self-opening of the hinge seat 2, so that the stability is high, the pulling force for opening or pushing force for closing the refrigerator door body is reduced, the operation is convenient, and the stability is high. When the elastic buffer device 5 and the connecting post 7 of the transmission connecting rod 4 are unscrewed, the hinge seat 2 is in a free open state, and the hinge seat is convenient to use and high in flexibility.
As shown in fig. 1 to 7, the front end of the elastic buffer 5 is preferably hinged to the transmission arm 3 via a fixed shaft 20, and the rear end of the elastic buffer 5 is provided with a groove 21 for rotating connection with the connection post 7.
The groove 21 is rotatably connected to the connecting post 7 with the fixing shaft 20 as a fixed point, so that the elastic buffer device 5 and the transmission link 4 form an included angle of 0 ° to 30 ° for the hinge base 2 to be folded from the fixing base 1 under the action of the elastic buffer device 5.
When the refrigerator door body is closed, the hinge seat 2 rotates at 0-30 degrees, the elastic buffer device 5 applies buffer elastic pressure to the transmission connecting rod 4, so that door closing assistance is provided for the hinge seat 2, and the closing thrust of the refrigerator door body is reduced; as shown in fig. 1-2.
During the process, the groove 21 is connected with the connecting column 7 by rotating inwards by taking the fixed shaft 20 as a fixed point, so that the elastic buffer device 5 and the transmission connecting rod 4 form an included angle of 30-60 degrees for opening the hinge seat 2 on the fixed seat 1 under the action of the elastic buffer device 5.
When the refrigerator door body is opened, the hinge seat 2 rotates at an angle of between 30 and 60 degrees, the elastic buffer device 5 applies buffer elastic reset force to the transmission connecting rod 4, so that door opening assistance is provided for the hinge seat 2, the opening pulling force of the refrigerator door body is reduced, and the refrigerator door body is convenient to operate and high in stability; as shown in fig. 3-5.
In addition, the groove position 21 is pivoted inward with the connecting column 7 by taking the fixed shaft 20 as a fixed point, so that the elastic buffer device 5 and the transmission connecting rod 4 form an included angle of 60-115 degrees for enabling the hinge base 2 to be in a free open state.
When the refrigerator door body is opened, the hinge seat 2 rotates at an angle of 60-115 degrees, and the elastic buffer device 5 is rotated and separated from the connecting column 7 of the transmission connecting rod 4, so that the hinge seat 2 is in a free opening state, the refrigerator door body is in the free opening state, the use flexibility is high, the use effect of the refrigerator hinge is ensured, and the use quality of the refrigerator is ensured; as shown in fig. 6 to 7.
Referring to fig. 1 to 7, the elastic buffer 5 includes a spring link 51, a spring link 52, and a spring member 53, wherein the front end of the spring link 52 is fixed to the driving arm 3 via the fixed shaft 20, and the groove 21 is provided on the rear end of the spring link 51. So that the connecting post 7 is stably and smoothly screwed on the spring connecting frame 51, and the connection stability is improved.
Meanwhile, the spring connecting frame 51 is sleeved on the spring connecting rod 52, a sliding groove 54 which is in sliding connection with the fixed shaft 20 is arranged at the front end of the spring connecting frame 51, and a sliding shaft 55 which swings up and down with the fixed shaft 20 as a fixed point is arranged at the rear end of the spring connecting frame 51. Wherein, the transmission arm 3 is provided with a limit groove 22 which is in sliding connection with the sliding shaft 55. The running stability and smoothness are enhanced, and the use quality of the elastic buffer device 5 is improved.
And the spring member 53 is sleeved on the spring connecting rod 52, one end of the spring member 53 is propped against the spring connecting rod 52, and the other end of the spring member 53 is propped against the inner wall surface of the spring connecting frame 51. The spring piece 53 is prevented from directly acting on the connecting post 7 to influence the screwing action, and for this purpose, the spring piece 53 elastically acts on the spring connecting frame 51 to ensure the normal use of the elastic buffer device 5.
Referring to fig. 1 to 7, the fixing base 1 is provided with a buffer damper 8, a cylinder body of the buffer damper 8 is detachably mounted on the fixing base 1, and a driving connection set is folded toward the fixing base 1 while the front end of the driving connection set is connected with a push rod of the buffer damper 8.
Under the effect of the buffer damper 8, the hinge can be in a folding and closing period, a push rod of the buffer damper 8 is in sliding connection with the transmission connection group, buffer force is provided for the transmission connection group, collision of the refrigerator door body during closing is avoided, noise is reduced, smooth closing of the refrigerator door body is guaranteed, and the use quality of the refrigerator hinge is guaranteed.
Optimally, a clamping groove position 23 which is buckled with the buffer damper 8 is arranged in the fixed seat 1, and an upper clamping block 24 and a lower clamping block 25 which are matched and clamped with the mounting shaft 15 and the clamping groove position 23 are arranged on the cylinder body of the buffer damper 8. The buffer damper is convenient to disassemble and assemble, convenient to maintain and replace, and capable of selectively installing the applicable buffer damper 8 according to practical application, so that the buffer effect is guaranteed.
During the process, the front end of the transmission supporting rod 9 is provided with a sliding arc surface 6 which is in sliding connection with a pushing rod of the buffer damper 8. The stability and the operation smoothness of connection are improved, and the silencing effect is obvious. Ensuring the normal use of the buffering damper 8.
The above embodiments are only specific embodiments with good effects, and all the structures identical or equivalent to the buffer hinge of the embedded refrigerator without hovering are within the protection scope of the present invention.

Claims (6)

1. The utility model provides a do not take embedded refrigerator buffering hinge that hovers, includes fixing base (1) of installing on the refrigerator box framework, installs hinge seat (2) on the refrigerator box door and articulates the hinge drive group between fixing base (1) and hinge seat (2), and hinge drive group includes transmission arm (3) and transmission connecting rod (4), its characterized in that: the transmission connecting rod (4) is provided with a transmission connecting group which is folded by taking a hinge point hinged with the fixed seat (1) as a fixed point rotation, so that the hinge seat (2) and the transmission arm (3) are folded towards the fixed seat (1) in sequence and embedded on the fixed seat (1), the front end of the transmission connecting group is hinged on the fixed seat (1), and the rear ends of the transmission connecting group are respectively hinged on the transmission connecting rod (4) and the hinge seat (2);
the transmission arm (3) is hinged with an elastic buffer device (5) which applies buffer elastic pressure to the hinge seat (2), the transmission connecting rod (4) is provided with a connecting column (7) which is connected with the elastic buffer device (5) when rotating so as to enable the hinge seat (2) to be folded or opened on the fixing seat (1) automatically or separated from the elastic buffer device (5) when rotating so as to enable the hinge seat (2) to be in a free open state, and a positioning shaft of the connecting column (7) is connected with the front end of the transmission connecting rod (4);
the fixed seat (1) is provided with a buffer damper (8), a cylinder body of the buffer damper (8) is detachably arranged on the fixed seat (1), and the front end of the transmission connection group is connected with a push rod of the buffer damper (8) while the transmission connection group is folded towards the fixed seat (1);
the front end of the elastic buffer device (5) is hinged on the transmission arm (3) through a fixed shaft (20), and the rear end of the elastic buffer device (5) is provided with a groove position (21) for rotating connection with the connecting column (7);
the groove position (21) is rotationally connected with the connecting column (7) outwards by taking the fixed shaft (20) as a fixed point, so that the elastic buffer device (5) and the transmission connecting rod (4) form an included angle of 0-30 degrees for enabling the hinge seat (2) to be folded on the fixed seat (1) under the action of the elastic buffer device (5);
the groove position (21) is connected with the connecting column (7) in a rotating way by taking the fixed shaft (20) as a fixed point, so that the elastic buffer device (5) and the transmission connecting rod (4) form an included angle of 30-60 degrees for opening the hinge seat (2) on the fixed seat (1) under the action of the elastic buffer device (5);
the groove position (21) is screwed off inwards from the connecting column (7) by taking the fixed shaft (20) as a fixed point, so that an included angle of 60-115 degrees is formed between the elastic buffer device (5) and the transmission connecting rod (4) and the hinge base (2) is in a free open state.
2. The flush refrigerator cushion hinge without hover of claim 1, wherein: the transmission connection group comprises a transmission supporting rod (9) and a transmission swinging rod (10), the front end of the transmission supporting rod (9) is hinged to the fixed seat (1) through a supporting rod shaft (11), the rear end of the transmission supporting rod (9) is hinged to the middle of the transmission connecting rod (4) through a connecting shaft (12), the front end of the transmission swinging rod (10) is hinged to the middle of the transmission supporting rod (9) through a swinging shaft (13), and the rear end of the transmission swinging rod (10) is hinged to the front portion of the hinge seat (2) through a positioning shaft (14);
the fixed seat (1) is provided with a mounting shaft (15) hinged with the front end of the transmission arm (3), the transmission arm (3) is provided with a switching shaft (16) hinged with the transmission connecting rod (4), and the transmission connecting rod (4) is provided with a hinge shaft (17) hinged with the hinge seat (2).
3. The flush refrigerator cushion hinge without hover of claim 2, wherein: the upper end of the transmission supporting rod (9) is provided with an empty-avoiding slot position (18), the connecting column (7) rotates along with the transmission connecting rod (4) to be separated from the elastic buffer device (5) and is connected with the empty-avoiding slot position (18) in a matched mode, or the connecting column (7) rotates along with the transmission connecting rod (4) to be separated from the empty-avoiding slot position (18) and is connected with the elastic buffer device (5) in a rotating mode.
4. The flush refrigerator buffering hinge without hovering according to claim 3, wherein: the lower end of the transmission supporting rod (9) is provided with a buckling groove (19), the buckling groove (19) is opened along with the outward rotation of the transmission connecting rod (4) so as to be matched with the positioning shaft (14) for buckling, or the buckling groove (19) is folded along with the inward rotation of the transmission connecting rod (4) so as to be separated from the positioning shaft (14).
5. The flush refrigerator cushion hinge without hover of claim 1, wherein: the elastic buffer device (5) comprises a spring connecting frame (51), a spring connecting rod (52) and a spring piece (53), the front end of the spring connecting rod (52) is fixed on the transmission arm (3) through a fixed shaft (20),
the spring connecting frame (51) is sleeved on the spring connecting rod (52), a sliding groove (54) which is in sliding connection with the fixed shaft (20) is formed in the front end of the spring connecting frame (51), and a sliding shaft (55) which swings up and down with the fixed shaft (20) as a fixed point is arranged at the rear end of the spring connecting frame (51);
the transmission arm (3) is provided with a limit groove (22) which is in sliding connection with the sliding shaft (55);
the spring piece (53) is sleeved on the spring connecting rod (52), one end of the spring piece (53) is propped against the spring connecting rod (52), and the other end of the spring piece (53) is propped against the inner wall surface of the spring connecting frame (51);
the groove position (21) is arranged on the rear end of the spring connecting frame (51).
6. The flush refrigerator cushion hinge without hover of claim 2, wherein: a clamping groove (23) which is buckled with the buffer damper (8) is arranged in the fixed seat (1), and an upper clamping block (24) and a lower clamping block (25) which are matched and clamped with the mounting shaft (15) and the clamping groove (23) are arranged on the cylinder body of the buffer damper (8);
the front end of the transmission supporting rod (9) is provided with a sliding arc surface (6) which is in sliding connection with a pushing rod of the buffer damper (8).
CN201810701979.3A 2018-06-30 2018-06-30 Embedded refrigerator buffering hinge without hovering Active CN108868422B (en)

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