WO2016123871A1 - 具有缓冲效果的铰链及具有所述铰链的装置 - Google Patents

具有缓冲效果的铰链及具有所述铰链的装置 Download PDF

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Publication number
WO2016123871A1
WO2016123871A1 PCT/CN2015/077724 CN2015077724W WO2016123871A1 WO 2016123871 A1 WO2016123871 A1 WO 2016123871A1 CN 2015077724 W CN2015077724 W CN 2015077724W WO 2016123871 A1 WO2016123871 A1 WO 2016123871A1
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WO
WIPO (PCT)
Prior art keywords
component
hinge
cushioning effect
spring
disposed
Prior art date
Application number
PCT/CN2015/077724
Other languages
English (en)
French (fr)
Inventor
米晓东
朱世平
林敏瑜
杨琳
Original Assignee
广东美的厨房电器制造有限公司
美的集团股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 广东美的厨房电器制造有限公司, 美的集团股份有限公司 filed Critical 广东美的厨房电器制造有限公司
Priority to RU2017131230A priority Critical patent/RU2656844C1/ru
Priority to EP15880826.1A priority patent/EP3255235B1/en
Publication of WO2016123871A1 publication Critical patent/WO2016123871A1/zh

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F1/00—Closers or openers for wings, not otherwise provided for in this subclass
    • E05F1/08—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings
    • E05F1/10—Closers 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
    • E05F1/12—Mechanisms in the shape of hinges or pivots, operated by springs
    • E05F1/1246—Mechanisms in the shape of hinges or pivots, operated by springs with a coil spring perpendicular to the pivot axis
    • E05F1/1269—Mechanisms in the shape of hinges or pivots, operated by springs with a coil spring perpendicular to the pivot axis with a traction spring
    • E05F1/1276—Mechanisms in the shape of hinges or pivots, operated by springs with a coil spring perpendicular to the pivot axis with a traction spring for counterbalancing
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F1/00—Closers or openers for wings, not otherwise provided for in this subclass
    • E05F1/08—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings
    • E05F1/10—Closers 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
    • E05F1/12—Mechanisms in the shape of hinges or pivots, operated by springs
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F3/00—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices
    • E05F3/20—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices in hinges
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F5/00—Braking devices, e.g. checks; Stops; Buffers
    • E05F5/02—Braking devices, e.g. checks; Stops; Buffers specially for preventing the slamming of swinging wings during final closing movement, e.g. jamb stops
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING 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
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/20—Brakes; Disengaging means; Holders; Stops; Valves; Accessories therefor
    • E05Y2201/23—Actuation thereof
    • E05Y2201/232—Actuation thereof by automatically acting means
    • E05Y2201/24—Actuation thereof by automatically acting means using lost motion
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING 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
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/20—Brakes; Disengaging means; Holders; Stops; Valves; Accessories therefor
    • E05Y2201/252—Type of friction
    • E05Y2201/254—Fluid or viscous friction
    • E05Y2201/256—Fluid or viscous friction with pistons or vanes
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING 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
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/20—Brakes; Disengaging means; Holders; Stops; Valves; Accessories therefor
    • E05Y2201/262—Type of motion, e.g. braking
    • E05Y2201/264—Type of motion, e.g. braking linear
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING 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
    • E05Y2800/00—Details, accessories and auxiliary operations not otherwise provided for
    • E05Y2800/20—Combinations of elements
    • E05Y2800/22—Combinations of elements of not identical elements of the same category, e.g. combinations of not identical springs
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING 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
    • E05Y2800/00—Details, accessories and auxiliary operations not otherwise provided for
    • E05Y2800/26—Form or shape
    • E05Y2800/292—Form or shape having apertures
    • E05Y2800/296—Slots
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING 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
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/30—Application of doors, windows, wings or fittings thereof for domestic appliances
    • E05Y2900/304—Application of doors, windows, wings or fittings thereof for domestic appliances for dishwashers
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING 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
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/30—Application of doors, windows, wings or fittings thereof for domestic appliances
    • E05Y2900/308—Application of doors, windows, wings or fittings thereof for domestic appliances for ovens
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING 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
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/30—Application of doors, windows, wings or fittings thereof for domestic appliances
    • E05Y2900/312—Application of doors, windows, wings or fittings thereof for domestic appliances for washing machines or laundry dryers

Definitions

  • the present invention relates to a hinge, and more particularly to a hinge having a cushioning effect and a device having the same.
  • the oven pull-down door hinge does not have an automatic door closing effect, that is, the operator needs to push and pull in the whole process of opening and closing, and the door closing experience is poor.
  • the present invention aims to achieve an oven hinge implementation with better performance, at least one of the effects of using existing hinges.
  • the present invention needs to provide a hinge that can be closed by its own elastic force after the door body is closed to a certain angle, and that achieves a smooth, noise-free automatic closing process by the damper.
  • the invention also entails providing a device having the hinge.
  • a hinge having a cushioning effect includes a first component, a second component, a main spring, a connecting piece, a damper assembly, a connecting component, and a locking spring.
  • the first component and the second component are respectively fixed to the body and the pull-down door and are rotatably connected by the first rotating shaft so that the pull-down door can be pulled down relative to the body, the first component is a rectangular shell And including a first end and an opposite second end rotatably coupled to the second component, the first component is provided with a first guiding slot adjacent to the first end, and the second component is formed with a cam portion .
  • the main spring is disposed in the first component, and one end of the main spring is fixedly connected to the second end.
  • the connecting piece is disposed in the first component, the connecting piece is connected to the other end of the main spring and is rotatably connected to the second component through a second rotating shaft, and the connecting piece is formed with an upper cover to
  • the first component is cooperatively formed with a chamber, and the connecting piece is provided with a second guiding groove.
  • the damper assembly includes a damper body, a telescopic rod, a return spring, a limiting piece and a third rotating shaft.
  • the damper body is located in the chamber, and the damper body is provided with a third guiding groove.
  • the telescopic rod extends from the damper body toward the second component.
  • the return spring is sleeved on the telescopic rod and disposed in the damper body.
  • the limiting piece is fixed in the first component, and the limiting piece is disposed in the telescopic rod.
  • the third rotating shaft connects the damper body and the connecting piece, and the third rotating shaft is rotatably and slidably disposed in the second guiding groove and the third guiding groove.
  • the connecting component is disposed between the second component and the telescopic rod, the connecting component is fixedly connected with the telescopic rod, and the connecting component is connected with the connecting piece by a fourth rotating shaft, the fourth The rotating shaft is rotatably and slidably disposed in the first guide groove, and the connecting assembly includes a driven wheel.
  • the locking spring is sleeved on the telescopic rod and disposed between the limiting piece and the connecting component such that the driven wheel is kept in rotational contact with the cam portion.
  • the cam portion includes And a balancing section, a critical section and a slow closing section of the second component that are sequentially engaged with the driven wheel during the rotation of the first component at a maximum opening angle with the first component.
  • the lock spring is in a compressed state and changes to a reset state
  • the return spring is in a natural state
  • the damper body is stationary in the chamber
  • the main spring is in a stretched state and Changing to the reset state, the tension generated by the main spring is balanced with the load weight of the hinge.
  • the lock spring In the critical section, the lock spring is in a compressed state and changes to a reset state, the return spring is in a natural state, and the damper body slides in the chamber toward the second end, the main spring In the stretched state, the main spring generates a pulling force greater than the load weight of the hinge.
  • the slow closing section the locking spring is in a compressed state and changes to a reset state, the return spring is in a natural state, the telescopic rod is compressed into the damper body, and the main spring is in a stretched state. And changing to the reset state, the main spring generates a pulling force greater than the load weight of the hinge and the damper body produces a reverse cushioning effect.
  • the weight of the pull-down door can be balanced when the pull-down door is pulled down to achieve a stable and stable effect.
  • the locking spring and the damper assembly are used, the effect of automatically closing the pull-down door can be achieved, and the user experience can be improved.
  • the first component includes a bottom plate and side walls extending upward from opposite sides of the bottom plate, and the first guiding groove is formed on the two side walls and has an arc shape.
  • the tab includes two side panels that abut the side walls and an upper lid that engages the two side panels.
  • the chamber is rectangular, the damper body is cylindrical, and the damper body cooperates with the shape of the chamber to enable the damper body to slide in the chamber .
  • the limiting piece is L-shaped, and the limiting piece comprises a negative piece fixedly connected to the bottom plate and a blocking piece extending upward from the negative piece, the blocking piece is disposed on the expansion and contraction Rod.
  • the connecting assembly includes a connecting body fixedly coupled to the telescopic rod and the driven wheel disposed on the connecting body, the connecting body and the connecting piece being disposed by sliding in the The fourth rotating shaft in the first guiding groove is connected, the connecting body is formed with a fixed shaft, the driven wheel is annular and sleeved in the fixed shaft, and the driven wheel is kept with the cam The part is rotated.
  • the angle at which the pull-down door is rotatable corresponding to the balance section ranges from 50° to 70°.
  • the angle at which the pull-down door is rotatable corresponding to the critical section ranges from 10° to 15°.
  • the angle at which the pull-down door is rotatable corresponding to the slow-closing section ranges from 10° to 25°.
  • a device comprising a body and a pull-down door, further comprising A hinge for the device described in the embodiments.
  • the weight of the pull-down door can be balanced when the pull-down door is pulled down to achieve a stable and stable effect.
  • the locking spring and the damper assembly are used, the effect of automatically closing the pull-down door can be achieved, and the user experience can be improved.
  • FIG. 1 is a perspective view of a hinge having a cushioning effect according to an embodiment of the present invention.
  • FIG. 2 is an exploded view of a hinge having a cushioning effect in accordance with an embodiment of the present invention.
  • FIG. 3 is a schematic cross-sectional view of the hinge having the cushioning effect of FIG. 1 taken along III-III.
  • FIG. 4 is a perspective view of a first component of a hinge having a cushioning effect in accordance with an embodiment of the present invention.
  • FIG. 5 is a perspective view of a stepped member of a hinge having a cushioning effect according to an embodiment of the present invention.
  • FIG. 6 is a perspective view of a connecting piece of a hinge having a cushioning effect according to an embodiment of the present invention.
  • FIG. 7 is a perspective view of a connector of a hinge having a cushioning effect according to an embodiment of the present invention.
  • first and second are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated.
  • features defining “first” or “second” may include one or more of the described features either explicitly or implicitly.
  • the meaning of "a plurality” is two or more unless specifically and specifically defined otherwise.
  • connection unless otherwise specifically defined and defined, “Connected” and “connected” should be understood broadly, for example, it may be a fixed connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be directly connected or indirectly connected through an intermediate medium, which can be the internal communication of two elements or the interaction of two elements.
  • intermediate medium which can be the internal communication of two elements or the interaction of two elements.
  • the first feature "on” or “under” the second feature may include direct contact of the first and second features, and may also include first and second features, unless otherwise specifically defined and defined. It is not in direct contact but through additional features between them.
  • the first feature “above”, “above” and “above” the second feature includes the first feature directly above and above the second feature, or merely indicating that the first feature level is higher than the second feature.
  • the first feature “below”, “below” and “below” the second feature includes the first feature directly above and above the second feature, or merely the first feature level being less than the second feature.
  • a cushioning effect hinge 10 includes a first component 12, a second component 14, a main spring 16, a connecting piece 18, a damper assembly 20, a connecting assembly 22, and a lock. Tight spring 24.
  • the first component 12 and the second component 14 are respectively fixed to the body and the pull-down door and are rotatably connected by the first rotating shaft 142 so that the pull-down door can be pulled down relative to the body, and the first component 12 is a rectangular casing and includes the second
  • the assembly 14 is rotatably coupled to the first end 120 and the opposite second end 122.
  • the first assembly 12 defines a first guide slot 124 adjacent the first end 120, and the second assembly 14 is formed with a cam portion 140.
  • the main spring 16 is disposed in the first assembly 12, and one end of the main spring 16 is fixedly coupled to the second end 122.
  • the connecting piece 18 is disposed in the first component 12, and the connecting piece 18 is connected to the other end of the main spring 16 and is rotatably connected to the second component 14 through the second rotating shaft 26, and the connecting piece 18 is formed with the upper cover 180 to cooperate with the first component 12.
  • a chamber 182 is formed, and the connecting piece 18 is opened with a second guiding groove 184.
  • the damper assembly 20 includes a damper body 200, a telescopic rod 202, a return spring 204, a limiting piece 206, and a third rotating shaft 208.
  • the damper body 200 is located in the chamber 182, and the damper body 200 is provided with a third guide groove 20a.
  • the telescoping rod 202 extends from the damper body 200 toward the second component 14.
  • the return spring 204 is sleeved on the telescopic rod 202 and disposed within the damper body 200.
  • the limiting piece 206 is fixed in the first component 12 , and the limiting piece 206 is disposed on the telescopic rod 202 .
  • the third rotating shaft 208 is connected to the damper main body 200 and the connecting piece 18, and the third rotating shaft 208 is rotatably and slidably disposed in the second guiding groove 184 and the third guiding groove 20a.
  • the connecting component 22 is disposed between the second component 14 and the telescopic rod 202.
  • the connecting component 22 is fixedly connected to the telescopic rod 202, and the connecting component 22 and the connecting piece 18 are connected by the fourth rotating shaft 28.
  • the fourth rotating shaft 28 is rotatably and slidably disposed within the first guide groove 124, and the connecting assembly 22 includes the driven wheel 220.
  • the locking spring 24 is sleeved on the telescopic rod 202 and disposed between the limiting piece 206 and the connecting component 22 to keep the driven wheel 220 in rotational contact with the cam portion 140.
  • the cam portion 140 includes a balance section, a critical section, and a slow section that are sequentially engaged with the driven wheel 220 during rotation of the second assembly 14 from the first assembly 12 to the first assembly 12 at a maximum angle.
  • the lock spring 24 is in a compressed state and changes to a reset state
  • the return spring 204 is in a natural state
  • the damper body 200 is stationary in the chamber 182
  • the main spring 16 is in a stretched state and changes to a reset state
  • the main The tension generated by the spring 16 is balanced with the load weight of the hinge 10.
  • the locking spring 24 In the critical section, the locking spring 24 is in a compressed state and changes to a reset state, the return spring 204 is in a natural state, the damper body 200 slides in the direction of the second end 122 in the chamber 182, and the main spring 16 is in a stretched state.
  • the main spring 16 produces a pulling force that is greater than the load weight of the hinge 10.
  • the slow closing section the locking spring 24 is in a compressed state and changes to a reset state, the return spring 204 is in a natural state, the telescopic rod 202 is compressed into the damper body 200, and the main spring 16 is in a stretched state and changes to a reset state, the main The tension generated by the spring 16 is greater than the load weight of the hinge 10 and the damper body 200 produces a back buffering effect.
  • the weight of the pull-down door can be balanced when the pull-down door is pulled down, and the effect of stable opening and closing can be achieved.
  • the locking spring 24 and the damper assembly 20 are used, the effect of automatically closing the pull-down door can be achieved, and the user experience can be improved.
  • the first component 12 is substantially rectangular, and the first component 12 includes a first end 120 and a second end 122 opposite to the first end 120.
  • the first component 12 further includes a bottom plate 126 and
  • the first guiding groove 124 is formed on the two side walls 128 and has an arc shape and extends substantially along the length direction of the first component 12 from the side wall 128 extending upward from both sides of the bottom plate 126.
  • the first channel 124 includes a first end point 1240 and a second end point 1242 opposite the first end point 1240.
  • the curved first guide channel 124 can coordinate the motion trajectory of the connection assembly 22.
  • the first component 12 houses a main spring 16 , a connecting piece 18 , a damper assembly 20 , a connecting component 22 , and a locking spring 24 .
  • the first assembly 12 has a recess 128a parallel to the axial direction of the first assembly 12 at a bottom plate 126 adjacent the first end 120.
  • the recess 128a is U-shaped.
  • the first component 12 and the second component 14 are connected by a first rotating shaft 142.
  • the first component 12 is rotatable relative to the second component 14 about the first rotating shaft 142 and synchronously drives the connecting piece 18 to move. 14 is swingable within the recess 128a relative to the first component 12.
  • the first assembly 12 is coupled to a fifth shaft 30 that is parallel to the first shaft 142, and the end of the web 18 remote from the first end 120 is coupled to a connecting shaft 32 that is parallel to the fifth shaft 30.
  • the spring 16 is coupled to the fifth rotating shaft 30 and the connecting shaft 32.
  • the second assembly 14 is connected to the step member 36 by a sixth rotating shaft 34 parallel to the second rotating shaft 26.
  • the step member 36 includes a fifth side 360 and a sixth side 362 opposite the fifth side 360, the second assembly 14 is located between the fifth side 360 and the sixth side 362, and the sixth shaft 34 passes through the fifth side 360 and Six side 362 and second component 14 is connected, the fifth side 360 and the sixth side 362 are connected and joined by the first step 364.
  • the fifth side 360 and the sixth side 362 are connected and joined by the second step 366 above the first step 364.
  • 36 is U-shaped, the first step 364 and the second step 366 are stepped, the first step 364 catches the groove 128a, and the second step 366 is stuck to the bottom plate 126 of the first component 12.
  • the first component 12 houses a connecting piece 18
  • the connecting piece 18 includes two side pieces 186 respectively adjacent to the two side walls 128 of the first component 12 , and two side pieces
  • the upper cover 180 is joined to the bottom plate 126 of the first assembly 12, and the upper cover 180 is mated with the first assembly 12 to form a chamber 182, and the damper body 200 is slidable within the chamber 182.
  • the second component 14 is in the form of a sheet, the second component 14 is located between the connecting pieces 18 and the second component 14 projects into the recess 128a, and the connecting piece 18 and the second component 14 are connected by a second rotating shaft 26 parallel to the first rotating shaft 142. .
  • the connecting piece 18 connects the main spring 16 and the second component 14, and the connection point of the connecting piece 18 and the second component 14 is offset from the first rotating shaft 142 of the second component 14 to drive the connection of the second component 14 relative to the first component 12.
  • the sheet 18 moves to stretch the main spring 16.
  • the connecting piece 18 formed with the upper cover 180 limits the damper body 200.
  • the chamber 182 has a rectangular shape and the damper body 200 has a cylindrical shape.
  • the damper body 200 cooperates with the shape of the chamber 182 to enable the damper body 200 to slide in the chamber 182.
  • the limiting piece 206 is L-shaped, and the limiting piece 206 includes a bottom piece 206a fixedly connected to the bottom plate 126 and a blocking piece 206b extending upward from the bottom piece 206a.
  • the blocking piece 206b is disposed on the telescopic rod 202.
  • the limiting piece 206 limits the damper body 200.
  • the connecting piece 18, the limiting piece 206 and the third rotating shaft 208 cooperate to define the range of motion of the damper body 200, and the structure is simple, and the assembly and disassembly is convenient.
  • the connecting piece 18, the limiting piece 206, and the third rotating shaft 208 disposed in the second guiding groove 184 and the third guiding groove 20a define a sliding stroke of the damper main body 200, and the damper main body 200 passes through the connecting piece 18,
  • the limiting piece 206 and the third rotating shaft 208 are limited, and the damper main body 200 can linearly reciprocate within the axial length of the third guiding groove 20a.
  • the third rotating shaft 208 is at the rightmost end of the third guide groove 20a.
  • the damper body 200 protrudes from the telescopic rod 202, and the end of the telescopic rod 202 and the connecting assembly 22 are fixed by a threaded pin 38.
  • the damper body 200 employs a hydraulic damper.
  • the connecting component 22 includes a connecting body 222 fixedly connected to the telescopic rod 202 and a driven wheel 220 disposed on the connecting body 222 .
  • the connecting body 222 and the connecting piece 18 are disposed at the first position by sliding.
  • the fourth rotating shaft 28 in the guide groove 124 is connected, and the connecting body 222 is formed with a fixed shaft 2220.
  • the driven wheel 220 has an annular shape and is sleeved in the fixed shaft 2220.
  • the driven wheel 220 is kept in contact with the cam portion 140.
  • the driven wheel 220 can be rotated about the fourth rotating shaft 28 to ensure that the driven wheel 220 and the cam portion 140 are always in contact.
  • the connecting body 222 includes a third side 2222, a fourth side 2224 opposite to the third side 2222, and a blocking surface 2226 perpendicular to the third side 2222 and the fourth side 2224 and located between the third side 2222 and the fourth side 2224.
  • the third side 2222 and the fourth side 2224 A fixed shaft 2220 is formed therebetween, and a hole 2228 is formed in the middle of the blocking surface 2226.
  • the telescopic rod 202 just passes through the hole 2228, and the threaded pin 38 mounted on the telescopic rod 202 is caught on the blocking surface 2226.
  • the connecting body 222 is integrally formed, and the cam portion 140 has a recessed and convex portion that makes various contacts with the driven wheel 220.
  • the connecting piece 18 and the connecting component 22 are connected by the fourth rotating shaft 28 and the fourth rotating shaft 28 is slidably disposed in the first guiding groove 124, and the connecting piece 18 drives the fourth rotating shaft 28 to slide in the first guiding groove 124.
  • the first component 12 is disposed on the pull-down door
  • the second component 14 is disposed on the body
  • the position of the second component 14 is constant when the hinge 10 is in operation
  • the first component 12 can be angled with the first rotating shaft 142 as an axis.
  • the pull-down door can be automatically slowed down. The effect of closing the door.
  • the hinge 10 is a balanced section from n1 to n2, a critical section from n2 to n3, and a slow-closing section from n3 to n4.
  • the opening angle of the hinge 10 is maximized and the angle at which the pull-down door opens is maximized.
  • the opening angle of the hinge 10 is minimized and the door body is in a closed state.
  • the connecting piece 18 drives the fourth rotating shaft 28 to reach the first end point 1240, the third rotating shaft 208 is located at the right end of the third guiding groove 20a, and the connecting piece 18 stretches the main
  • the spring 16 causes the main spring 16 to be in a stretched state, and the tension of the main spring 16 is balanced with the load weight of the hinge 10.
  • the hinge 10 is within the angle a, that is, the balance portion of the hinge 10 from n1 to n2
  • the pull-down door can be stationary at any position within the range. Closing the pull-down door at this time requires artificial force.
  • the tension of the main spring 16 is greater than the load weight of the hinge 10.
  • the hinge 10 is at the b angle, that is, the critical section of the hinge 10 from n2 to n3
  • the connecting piece 18 connected to the main spring 16 slides in the direction of the main spring 16
  • the damper main body 200 slides so that the third rotating shaft 208 faces the third
  • the leftmost end of the guide groove 20a slides that is, the hinge 10 can automatically drive the pull-down door to rotate rapidly in the closing direction, and the pull-down door can be automatically closed without external force.
  • the tension of the main spring 16 is greater than the load weight of the hinge 10
  • the third shaft 208 is located at the leftmost end of the third guide groove 20a, and the return spring 204 is compressed. Return to a natural state.
  • the connecting piece 18 connected to the main spring 16 continues to slide in the direction of the main spring 16, and the telescopic rod 202 starts to compress into the damper main body 200,
  • the damper body 200 generates a reverse buffering force to slow down the speed at which the hinge 10 drives the door body to rotate.
  • the pull-down door rotates at a slow and uniform speed. At this time, the pull-down door can be automatically closed without rebounding quickly, but is gently closed.
  • the opening angle of the hinge 10 is minimized, the door body It is in a closed state.
  • the main spring 16, the lock spring 24, and the return spring 204 are all in a natural state.
  • the hinge 10 is in the position of n1-n2 corresponding to the balance section, and the tension generated by the main spring 16 is balanced with the load weight of the hinge 10, and the pull-down door can be stopped at any position within the range of a angle.
  • the range of the pull-down door corresponding to the balance section is 50°-70°, that is, the angle of the a range may be 50°-70°.
  • the hinge 10 is in the position of n2-n3 corresponding to the critical section. At this time, the tension generated by the main spring 16 is greater than the load weight of the hinge 10, and the hinge can be quickly rotated from the n2 position to the n3 in the b angle range. position.
  • the range of the corresponding critical section pull-down door is 10°-15°, that is, the b angle can range from 10°-15°.
  • the hinge 10 is in the position of n3-n4 corresponding to the slow-closing section, and the tension generated by the main spring 16 is greater than the load weight of the hinge 10, and the hinge can be slowly rotated from the n3 position to the range of c angles. N4 position.
  • the range of the pull-down door corresponding to the slow-closing section is 10°-25°, that is, the range of the c angle may be 10°-25°.
  • the device of the preferred embodiment of the present invention includes a body and a pull-down door.
  • the device includes the hinge 10 described above, wherein the first component 12 is fixedly disposed on the pull-down door, and the second component 14 is fixedly disposed on the body.
  • the device is an oven.
  • the oven is only an example and is not intended to limit the invention. In this way, the effect of the automatic slow closing of the pull-down door of the device can be achieved, and the damage caused by the excessively fast closing of the pull-down door of the device can be avoided.

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Abstract

一种具有缓冲效果的铰链，包括第一组件(12)、第二组件(14)、主弹簧(16)、连接片(18)、阻尼器组件(20)、连接组件(22)及锁紧弹簧(24)。第二组件(14)枢接于第一组件(12)且与本体固定连接，主弹簧(16)与设置于第一组件(12)内的连接片(18)及第一组件(12)连接。连接片(18)连接主弹簧(16)与第二组件(14)。阻尼器组件(20)包括阻尼器主体(200)、伸缩杆(202)、复位弹簧(204)、限位片(206)及第三转轴(208)。

Description

具有缓冲效果的铰链及具有所述铰链的装置 技术领域
本发明涉及铰链，尤其是涉及一种具有缓冲效果的铰链及具有所述铰链的装置。
背景技术
目前应用的烤箱下拉门铰链不具备自动关门效果，即在打开、闭合的整个过程中都需要操作者用力推拉，关门体验效果差。
发明内容
本发明旨在实现一种性能更优的烤箱铰链实现方案，至少提升现有铰链的使用效果之一。为此，本发明需要提供一种在门体关闭到一定角度之后能够靠自身弹力关闭、且通过阻尼器实现自动关闭过程平缓、无噪声的铰链。
本发明还需要提供一种具有所述铰链的装置。
根据本发明第一方面较佳实施方式的一种具有缓冲效果的铰链，包括第一组件、第二组件、主弹簧、连接片、阻尼器组件、连接组件及锁紧弹簧。所述第一组件及所述第二组件分别用于固定于本体及下拉门且通过第一转轴转动连接从而使得所述下拉门可相对于所述本体转动下拉，所述第一组件呈矩形壳体并包括与所述第二组件转动连接的第一端及相对的第二端，所述第一组件开设有靠近所述第一端的第一导槽，所述第二组件形成有凸轮部。所述主弹簧设置于所述第一组件内，所述主弹簧的一端与所述第二端固定连接。所述连接片设置于所述第一组件内，所述连接片连接所述主弹簧的另一端且通过第二转轴与所述第二组件转动连接，所述连接片形成有上盖以与所述第一组件配合形成有腔室，所述连接片开设有第二导槽。所述阻尼器组件包括阻尼器主体、伸缩杆、复位弹簧、限位片及第三转轴。所述阻尼器主体位于所述腔室内，所述阻尼器主体开设有第三导槽。所述伸缩杆从所述阻尼器主体向所述第二组件延伸。所述复位弹簧套设在所述伸缩杆上且设置在所述阻尼器主体内。所述限位片固定于所述第一组件内，所述限位片穿设于所述伸缩杆。所述第三转轴连接所述阻尼器主体及所述连接片，所述第三转轴可转动且可滑动地设置在所述第二导槽及所述第三导槽内。所述连接组件设置于所述第二组件与所述伸缩杆之间，所述连接组件与所述伸缩杆固定连接，所述连接组件与所述连接片通过第四转轴连接，所述第四转轴可转动且可滑动地设置在所述第一导槽内，所述连接组件包括从动轮。所述锁紧弹簧套设在所述伸缩杆上且设置于所述限位片与所述连接组件之间，以使所述从动轮保持与所述凸轮部可转动接触。所述凸轮部包括在所 述第二组件自与所述第一组件成最大张角处向所述第一组件转动过程中依次与所述从动轮配合的平衡段、临界段及缓关段。在所述平衡段中，所述锁紧弹簧处于压缩状态且向复位状态变化，所述复位弹簧处于自然状态，所述阻尼器主体在所述腔室内静止，所述主弹簧处于拉伸状态且向复位状态变化，所述主弹簧产生的拉紧力与所述铰链的负载重量相平衡。在所述临界段中，所述锁紧弹簧处于压缩状态且向复位状态变化，所述复位弹簧处于自然状态，所述阻尼器主体在所述腔室内向所述第二端的方向滑动，主弹簧处于拉伸状态，所述主弹簧产生的拉紧力大于所述铰链的负载重量。在所述缓关段，所述锁紧弹簧处于压缩状态且向复位状态变化，所述复位弹簧处于自然状态，所述伸缩杆向所述阻尼器主体内压缩，所述主弹簧处于拉伸状态且向复位状态变化，所述主弹簧产生的拉紧力大于所述铰链的负载重量且所述阻尼器主体产生反向缓冲作用。
本发明较佳实施方式的铰链，由于采用所述主弹簧，在下拉所述下拉门时能平衡所述下拉门的重量，达到稳开稳合的效果。另外，由于采用所述锁紧弹簧及所述阻尼器组件，能达到使所述下拉门自动缓慢关闭的效果，能提高用户的使用体验。
在一些实施方式中，所述第一组件包括底板及自所述底板两侧向上延伸的侧壁，所述第一导槽开设于所述两侧壁上且呈弧形。
在一些实施方式中，所述连接片包括分别紧贴所述侧壁的两个侧片及与两个侧片接合的上盖。
在一些实施方式中，所述腔室呈矩形，所述阻尼器主体呈圆柱形，所述阻尼器主体与所述腔室的形状配合以使所述阻尼器主体能在所述腔室中滑动。
在一些实施方式中，所述限位片呈L型，所述限位片包括与所述底板固定连接的底片及自所述底片向上延伸的挡片，所述挡片穿设于所述伸缩杆。
在一些实施方式中，所述连接组件包括与所述伸缩杆固定连接的连接体及设置在所述连接体上的所述从动轮，所述连接体与所述连接片通过滑动设置在所述第一导槽内的所述第四转轴连接，所述连接体上形成有固定轴，所述从动轮呈圆环状且套设在所述固定轴中，所述从动轮保持与所述凸轮部转动连接。
在一些实施方式中，对应所述平衡段所述下拉门可转动的角度的范围为50°-70°。
在一些实施方式中，对应所述临界段所述下拉门可转动的角度的范围是10°-15°。
在一些实施方式中，对应所述缓关段所述下拉门可转动的角度的范围为10°-25°。
根据本发明第二方面较佳实施方式的一种装置，包括本体及下拉门，还包括根据上 述实施方式所述的用于所述装置的铰链。
本发明较佳实施方式的装置，由于采用所述主弹簧，在下拉所述下拉门时能平衡所述下拉门的重量，达到稳开稳合的效果。另外，由于采用所述锁紧弹簧及所述阻尼器组件，能达到使所述下拉门自动缓慢关闭的效果，能提高用户的使用体验。
本发明的附加方面和优点将在下面的描述中部分给出，部分将从下面的描述中变得明显，或通过本发明的实践了解到。
附图说明
本发明的上述和/或附加的方面和优点从结合下面附图对实施方式的描述中将变得明显和容易理解，其中：
图1是根据本发明实施方式的具有缓冲效果的铰链的立体图。
图2是根据本发明实施方式的具有缓冲效果的铰链的爆炸图。
图3是图1的具有缓冲效果的铰链沿Ⅲ-Ⅲ的截面示意图。
图4是根据本发明实施方式的具有缓冲效果的铰链的第一组件的立体图。
图5是根据本发明实施方式的具有缓冲效果的铰链的阶梯件的立体图。
图6是根据本发明实施方式的具有缓冲效果的铰链的连接片的立体图。
图7是根据本发明实施方式的具有缓冲效果的铰链的连接体的立体图。
具体实施方式
下面详细描述本发明的实施例，所述实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的，仅用于解释本发明，而不能理解为对本发明的限制。
在本发明的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“顺时针”、“逆时针”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个所述特征。在本发明的描述中，“多个”的含义是两个或两个以上，除非另有明确具体的限定。
在本发明的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、 “相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接。可以是机械连接，也可以是电连接。可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本发明中的具体含义。
在本发明中，除非另有明确的规定和限定，第一特征在第二特征之“上”或之“下”可以包括第一和第二特征直接接触，也可以包括第一和第二特征不是直接接触而是通过它们之间的另外的特征接触。而且，第一特征在第二特征“之上”、“上方”和“上面”包括第一特征在第二特征正上方和斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”包括第一特征在第二特征正上方和斜上方，或仅仅表示第一特征水平高度小于第二特征。
下文的公开提供了许多不同的实施例或例子用来实现本发明的不同结构。为了简化本发明的公开，下文中对特定例子的部件和设置进行描述。当然，它们仅仅为示例，并且目的不在于限制本发明。此外，本发明可以在不同例子中重复参考数字和/或参考字母，这种重复是为了简化和清楚的目的，其本身不指示所讨论各种实施例和/或设置之间的关系。此外，本发明提供了的各种特定的工艺和材料的例子，但是本领域普通技术人员可以意识到其他工艺的应用和/或其他材料的使用。
请参阅图1至图3，本发明较佳实施方式的具有缓冲效果的铰链10包括第一组件12、第二组件14、主弹簧16、连接片18、阻尼器组件20、连接组件22及锁紧弹簧24。第一组件12及第二组件14分别用于固定于本体及下拉门且通过第一转轴142转动连接从而使得下拉门可相对于本体转动下拉，第一组件12呈矩形壳体并包括与第二组件14转动连接的第一端120及相对的第二端122，第一组件12开设有靠近第一端120的第一导槽124，第二组件14形成有凸轮部140。主弹簧16设置于第一组件12内，主弹簧16的一端与第二端122固定连接。连接片18设置于第一组件12内，连接片18连接主弹簧16的另一端且通过第二转轴26与第二组件14转动连接，连接片18形成有上盖180以与第一组件12配合形成有腔室182，连接片18开设有第二导槽184。阻尼器组件20包括阻尼器主体200、伸缩杆202、复位弹簧204、限位片206及第三转轴208。阻尼器主体200位于腔室182内，阻尼器主体200开设有第三导槽20a。伸缩杆202从阻尼器主体200向第二组件14延伸。复位弹簧204套设在伸缩杆202上且设置在阻尼器主体200内。限位片206固定于第一组件12内，限位片206穿设于伸缩杆202。第三转轴208连接阻尼器主体200及连接片18，第三转轴208可转动且可滑动地设置在第二导槽184及第三导槽20a内。连接组件22设置于第二组件14与伸缩杆202之间，连接组件22与伸缩杆202固定连接，连接组件22与连接片18通过第四转轴28连接， 第四转轴28可转动且可滑动地设置在第一导槽124内，连接组件22包括从动轮220。锁紧弹簧24套设在伸缩杆202上且设置于限位片206与连接组件22之间，以使从动轮220保持与凸轮部140可转动接触。凸轮部140包括在第二组件14自与第一组件12成最大张角处向第一组件12转动过程中依次与从动轮220配合的平衡段、临界段及缓关段。在平衡段中，锁紧弹簧24处于压缩状态且向复位状态变化，复位弹簧204处于自然状态，阻尼器主体200在腔室182内静止，主弹簧16处于拉伸状态且向复位状态变化，主弹簧16产生的拉紧力与铰链10的负载重量相平衡。在临界段中，锁紧弹簧24处于压缩状态且向复位状态变化，复位弹簧204处于自然状态，阻尼器主体200在腔室182内向第二端122的方向滑动，主弹簧16处于拉伸状态，主弹簧16产生的拉紧力大于铰链10的负载重量。在缓关段，锁紧弹簧24处于压缩状态且向复位状态变化，复位弹簧204处于自然状态，伸缩杆202向阻尼器主体200内压缩，主弹簧16处于拉伸状态且向复位状态变化，主弹簧16产生的拉紧力大于铰链10的负载重量且阻尼器主体200产生反向缓冲作用。
本发明较佳实施方式的铰链，由于采用主弹簧16，在下拉下拉门时能平衡下拉门的重量，达到稳开稳合的效果。另外，由于采用锁紧弹簧24及阻尼器组件20，能达到使下拉门自动缓慢关闭的效果，能提高用户的使用体验。
请参阅图4，在本实施方式中，第一组件12基本呈矩形，第一组件12包括第一端120及与第一端120相对的第二端122，第一组件12还包括底板126及自底板126两侧向上延伸的侧壁128，第一导槽124开设于两侧壁128上且呈弧形，并基本沿第一组件12的长度方向延伸。第一导槽124包括第一端点1240及与第一端点1240相对的第二端点1242。
如此，采用弧形的第一导槽124可协调连接组件22的运动轨迹。
请参阅图5，具体地，第一组件12内收容有主弹簧16、连接片18、阻尼器组件20、连接组件22及锁紧弹簧24。第一组件12在靠近第一端120的底板126开设有平行于第一组件12的轴向的凹槽128a，凹槽128a呈U型。在第一端120处第一组件12与第二组件14通过第一转轴142连接，第一组件12可绕第一转轴142相对于第二组件14转动且同步带动连接片18运动，第二组件14可相对于第一组件12在凹槽128a内摆动。在第二端122处，第一组件12连接有与第一转轴142平行的第五转轴30，远离第一端120的连接片18的末端连接有与第五转轴30平行的连接轴32，主弹簧16与第五转轴30及连接轴32连接。第二组件14通过平行于第二转轴26的第六转轴34连接有阶梯件36。阶梯件36包括第五侧360及与第五侧360相对的第六侧362，第二组件14位于第五侧360与第六侧362之间，第六转轴34穿过第五侧360与第六侧362与第二组件 14连接，第五侧360与第六侧362通过第一阶面364连接、接合，在第一阶面364上方第五侧360与第六侧362通过第二阶面366连接、接合，阶梯件36呈U型，第一阶面364与第二阶面366呈阶梯状，第一阶面364卡住凹槽128a，第二阶面366卡在第一组件12的底板126。
请参阅图6，在本实施方式中，第一组件12收容有连接片18，连接片18包括分别紧贴第一组件12的两侧壁128的两个侧片186，及与两个侧片186接合的上盖180，上盖180与第一组件12的底板126平行，上盖180与第一组件12配合形成有腔室182，阻尼器主体200可在腔室182内滑动。第二组件14呈片状，第二组件14位于连接片18之间且第二组件14伸入凹槽128a，连接片18与第二组件14通过平行于第一转轴142的第二转轴26连接。连接片18连接主弹簧16与第二组件14，连接片18与第二组件14的连接点偏离第二组件14的第一转轴142以使第二组件14相对于第一组件12转动时带动连接片18移动从而拉伸主弹簧16。
如此，形成有上盖180的连接片18对阻尼器主体200进行限位。
在本实施方式中，腔室182呈矩形，阻尼器主体200呈圆柱形，阻尼器主体200与腔室182的形状配合以使阻尼器主体200能在腔室182中滑动。
在本实施方式中，限位片206呈L型，限位片206包括与底板126固定连接的底片206a及自底片206a向上延伸的挡片206b，挡片206b穿设于伸缩杆202。
如此，限位片206对阻尼器主体200进行限位，连接片18、限位片206及第三转轴208配合限定了阻尼器主体200的运动范围，结构简单，拆装方便。
具体地，连接片18、限位片206及设置于第二导槽184与第三导槽20a内的第三转轴208限定了阻尼器主体200的滑动行程，阻尼器主体200通过连接片18、限位片206及第三转轴208限位，阻尼器主体200可在第三导槽20a的轴向长度范围内线型往复运动。下拉门打开的角度最大时，第三转轴208在第三导槽20a的最右端。阻尼器主体200伸出有伸缩杆202，伸缩杆202的末端与连接组件22通过螺纹销38固定。其中，阻尼器主体200采用液压阻尼器。
请参阅图7，在本实施方式中，连接组件22包括与伸缩杆202固定连接的连接体222及设置在连接体222上的从动轮220，连接体222与连接片18通过滑动设置在第一导槽124内的第四转轴28连接，连接体222上形成有固定轴2220，从动轮220呈圆环状且套设在固定轴2220中，从动轮220保持与凸轮部140接触。从动轮220可以以第四转轴28为轴心旋转，从而保证从动轮220与凸轮部140始终保持接触。连接体222包括第三侧2222、与第三侧2222相对的第四侧2224及垂直于第三侧2222与第四侧2224并位于第三侧2222与第四侧第2224之间的挡面2226，第三侧2222与第四侧2224之 间形成有固定轴2220，挡面2226的中间开设有与伸缩杆202配合的孔2228，伸缩杆202恰好通过孔2228，安装在伸缩杆202上的螺纹销38卡在挡面2226上。其中，连接体222为一体成型，凸轮部140具有与从动轮220做多种接触的凹进和凸出的部分。
如此，连接片18与连接组件22通过第四转轴28连接且第四转轴28滑动设置在第一导槽124内，连接片18带动第四转轴28在第一导槽124内滑动。
第一组件12设置在下拉门上，第二组件14设置在本体上，铰链10工作时，第二组件14的位置恒定不变，第一组件12能以第一转轴142为轴进行一定角度的旋转，同步带动连接在第二组件14上的连接片18运动，从而拉伸连接在连接片18上的主弹簧16，在主弹簧16和阻尼器组件20的作用下，下拉门可以实现自动缓慢关门的效果。
具体地，铰链10从n1到n2为平衡段，从n2到n3为临界段，从n3到n4为缓关段。当第二组件14相对于第一组件12处于n1位置时，铰链10的张角达到最大，下拉门打开的角度达到最大。当第二组件14相对于第一组件12处于n4位置时，铰链10的张角达到最小，门体处于闭合状态。
当第二组件14相对于第一组件12处于n1位置时，连接片18带动第四转轴28到达第一端点1240，第三转轴208位于第三导槽20a的右端，连接片18拉伸主弹簧16使得主弹簧16处于拉伸状态，主弹簧16的拉紧力与铰链10的负载重量相平衡。当铰链10处于a角度内，即铰链10从n1到n2的平衡段内，由于主弹簧16的拉紧力与铰链10的负载重量相平衡，下拉门可在该范围内任意位置静止不动，此时关闭下拉门需要人为外力。
当第二组件14相对于第一组件12处于n2位置时，主弹簧16的拉紧力大于铰链10的负载重量。当铰链10处于b角度时，即铰链10从n2到n3的临界段内，与主弹簧16连接的连接片18向主弹簧16的方向滑动，阻尼器主体200滑动使得第三转轴208朝第三导槽20a的最左端滑动，即铰链10能自动带动下拉门朝关闭方向快速转动，此时下拉门可自动关闭，无须外力。
当第二组件14相对于第一组件12处于n3位置时，主弹簧16的拉紧力大于铰链10的负载重量，第三转轴208位于第三导槽20a的最左端，复位弹簧204由压缩状态恢复为自然状态。当铰链10处于c角度时，即铰链10从n3到n4的缓关段，与主弹簧16连接的连接片18继续向主弹簧16的方向滑动，伸缩杆202开始向阻尼器主体200内压缩，阻尼器主体200产生反向缓冲作用力，减缓铰链10带动门体转动的速度，下拉门以缓慢且均匀的速度旋转，此时能实现下拉门自动关闭同时不快速弹回，而是平缓关闭。
当第二组件14相对于第一组件12处于n4位置时，铰链10的张角达到最小，门体 处于闭合状态。此时，主弹簧16、锁紧弹簧24及复位弹簧204均处于自然状态。
当铰链10因外力作用(通常为人为施加的力)由n4位置打开到C角度的范围内的任意位置，阻尼器主体200向第二组件14方向滑动，复位弹簧204会给阻尼器主体200一个阻力使阻尼器主体200内的液压油复位，撤销外力后，由于主弹簧16的拉紧力大于铰链10的负载重量，下拉门会向主弹簧16的方向旋转，即下拉门仍会以缓慢且均匀的速度关闭，即铰链10仍会回到n4位置。
在本实施方式中，对应平衡段，铰链10处于n1-n2的位置，此时主弹簧16产生的拉紧力与铰链10的负载重量相平衡，下拉门可在a角度范围内的任意位置停顿。其中，对应平衡段下拉门可转动的范围为50°-70°，即a角度的范围可为50°-70°。
在本实施方式中，对应临界段，铰链10处于n2-n3的位置，此时主弹簧16产生的拉紧力大于铰链10的负载重量，铰链可在b角度范围内由n2位置快速转动到n3位置。其中，对应临界段下拉门可转动的范围为10°-15°，即b角度的范围可为10°-15°。
在本实施方式中，对应缓关段，铰链10处于n3-n4的位置，此时主弹簧16产生的拉紧力大于铰链10的负载重量，铰链可在c角度范围内由n3位置缓慢转动到n4位置。其中，对应缓关段下拉门可转动的范围为10°-25°，即c角度的范围可为10°-25°。
如此，能达到使所述下拉门在设计角度范围内自动缓慢关闭的效果，能提高用户的使用体验。
当然，以上数值仅作为例子给出帮助说明铰链10如何实现下拉门在一定开合角度内实现自动缓慢关门的方式，并不用于限制本发明。
本发明较佳实施方式的装置包括本体及下拉门，装置包括上述铰链10，其中，第一组件12固定设置在下拉门上，第二组件14固定设置在本体上。可选地，装置为烤箱。当然，烤箱仅作为一个例子，并不用于限制本发明。如此，可以实现装置的下拉门自动缓慢关闭的效果，能避免装置的下拉门由于用力过度快速闭合从而造成的损坏。
在本说明书的描述中，参考术语“一个实施方式”、“一些实施方式”、“示意性实施方式”、“示例”、“具体示例”、或“一些示例”等的描述意指结合实施方式或示例描述的具体特征、结构、材料或者特点包含于本发明的至少一个实施方式或示例中。在本说明书中，对上述术语的示意性表述不一定指的是相同的实施方式或示例。而且，描述的具体特征、结构、材料或者特点可以在任何的一个或多个实施方式或示例中以合适的方式结合。
尽管已经示出和描述了本发明的实施方式，本领域的普通技术人员可以理解：在不脱离本发明的原理和宗旨的情况下可以对这些实施方式进行多种变化、修改、替换和变型，本发明的范围由权利要求及其等同物限定。

Claims (11)

  1. 一种具有缓冲效果的铰链，包括：
    第一组件及第二组件，所述第一组件并包括与所述第二组件转动连接的第一端及相对的第二端，所述第一组件开设有靠近所述第一端的第一导槽，所述第二组件形成有凸轮部，
    设置于所述第一组件内的主弹簧，所述主弹簧的一端与所述第一组件的所述第二端固定连接；
    设置于所述第一组件内的连接片，所述连接片连接所述主弹簧的另一端且通过第二转轴与所述第二组件转动连接，所述连接片形成有上盖以与所述第一组件配合形成有腔室，所述连接片开设有第二导槽；
    阻尼器组件，包括：
    位于所述腔室内的阻尼器主体，所述阻尼器主体开设有第三导槽；
    从所述阻尼器主体向所述第二组件延伸的伸缩杆；
    套设在所述伸缩杆上且设置在所述阻尼器主体内的复位弹簧；
    固定于所述第一组件内的限位片，所述限位片穿设于所述伸缩杆；及
    连接所述阻尼器主体及所述连接片的第三转轴，所述第三转轴可转动且可滑动地设置在所述第二导槽及所述第三导槽内；
    连接组件，所述连接组件设置于所述第二组件与所述伸缩杆之间，所述连接组件与所述伸缩杆固定连接，所述连接组件与所述连接片通过第四转轴连接，所述第四转轴可转动且可滑动地设置在所述第一导槽内，所述连接组件包括从动轮；及
    锁紧弹簧，所述锁紧弹簧套设在所述伸缩杆上且设置于所述限位片与所述连接组件之间，以使所述从动轮保持与所述凸轮部可转动接触，
    其中，所述凸轮部包括在所述第二组件自与所述第一组件成最大张角处向所述第一组件转动过程中依次与所述从动轮配合的平衡段、临界段及缓关段；
    在所述平衡段中，所述锁紧弹簧处于压缩状态且向复位状态变化，所述复位弹簧处于自然状态，所述阻尼器主体在所述腔室内静止，所述主弹簧处于拉伸状态且向复位状态变化，所述主弹簧产生的拉紧力与所述铰链的负载重量相平衡；
    在所述临界段中，所述锁紧弹簧处于压缩状态且向复位状态变化，所述复位弹簧处于自然状态，所述阻尼器主体在所述腔室内向所述第二端的方向滑动，主弹簧处于拉伸状态，所述主弹簧产生的拉紧力大于所述铰链的负载重量；
    在所述缓关段，所述锁紧弹簧处于压缩状态且向复位状态变化，所述复位弹簧处于自然状态，所述伸缩杆向所述阻尼器主体内压缩，所述主弹簧处于拉伸状态且向复位状态变化，所述主弹簧产生的拉紧力大于所述铰链的负载重量且所述阻尼器主体产生反向缓冲作用。
  2. 根据权利要求1所述的具有缓冲效果的铰链，其特征在于，所述第一组件包括底板及自所述底板两侧向上延伸的侧壁，所述第一导槽开设于所述两侧壁上且呈弧形。
  3. 根据权利要求2所述的具有缓冲效果的铰链，其特征在于，所述连接片包括分别紧贴所述侧壁的两个侧片及与两个侧片接合的上盖。
  4. 根据权利要求1所述的具有缓冲效果的铰链，其特征在于，所述腔室呈矩形，所述阻尼器主体呈圆柱形，所述阻尼器主体与所述腔室的形状配合以使所述阻尼器主体能在所述腔室中滑动。
  5. 根据权利要求2所述的具有缓冲效果的铰链，其特征在于，所述限位片呈L型，所述限位片包括与所述底板固定连接的底片及自所述底片向上延伸的挡片，所述挡片穿设于所述伸缩杆。
  6. 根据权利要求1所述的具有缓冲效果的铰链，其特征在于，所述连接组件包括与所述伸缩杆固定连接的连接体及设置在所述连接体上的所述从动轮，所述连接体与所述连接片通过滑动设置在所述第一导槽内的所述第四转轴连接，所述连接体上形成有固定轴，所述从动轮呈圆环状且套设在所述固定轴中，所述从动轮保持与所述凸轮部转动连接。
  7. 根据权利要求1-6任意一项所述的具有缓冲效果的铰链，其特征在于，对应所述平衡段所述下拉门可转动的角度的范围为50°-70°。
  8. 根据权利要求1-6任意一项所述的具有缓冲效果的铰链，其特征在于，对应所述临界段所述下拉门可转动的角度的范围是10°-15°。
  9. 根据权利要求1-6任意一项所述的具有缓冲效果的铰链，其特征在于，对应所述缓关段所述下拉门可转动的角度的范围为10°-25°。
  10. 根据权利要求1所述的具有缓冲效果的铰链，其特征在于，所述第一组件呈矩形壳体。
  11. 一种装置，包括本体、下拉门及根据权利要求1-10任意一项所述的用于所述装置的铰链，其中，所述铰链的第一组件和第二组件分别用于固定于所述本体及所述下拉门且通过第一转轴转动连接从而使得所述下拉门可相对于所述本体转动下拉。
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CN108332497A (zh) * 2018-04-04 2018-07-27 安徽安缆模具有限公司 一种可自动吸合的冰箱门铰链盒组件
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CN104727683A (zh) 2015-06-24
CN104727683B (zh) 2016-12-14
EP3255235B1 (en) 2022-06-22
EP3255235A1 (en) 2017-12-13
RU2656844C1 (ru) 2018-06-06
EP3255235A4 (en) 2018-11-21

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