CN108360937B - Oven door opening and closing method with buffering function and special oven hinge thereof - Google Patents

Oven door opening and closing method with buffering function and special oven hinge thereof Download PDF

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Publication number
CN108360937B
CN108360937B CN201810138548.0A CN201810138548A CN108360937B CN 108360937 B CN108360937 B CN 108360937B CN 201810138548 A CN201810138548 A CN 201810138548A CN 108360937 B CN108360937 B CN 108360937B
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China
Prior art keywords
shaft
oven
buffer
door body
oven door
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CN201810138548.0A
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Chinese (zh)
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CN108360937A (en
Inventor
胡涛
杨文明
张翔
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Jiangsu Jiuxing Precision Technology Group Co ltd
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Jiangsu Xinghui Precision Technology Co ltd
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Priority to CN201810138548.0A priority Critical patent/CN108360937B/en
Publication of CN108360937A publication Critical patent/CN108360937A/en
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    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D11/00—Additional features or accessories of hinges
    • E05D11/10—Devices for preventing movement between relatively-movable hinge parts
    • E05D11/1028—Devices for preventing movement between relatively-movable hinge parts for maintaining the hinge in two or more positions, e.g. intermediate or fully open
    • 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
    • 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
    • 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
    • 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

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
  • Closing And Opening Devices For Wings, And Checks For Wings (AREA)

Abstract

The invention provides an oven door body opening and closing method with a buffering function and a special oven hinge thereof, wherein under the action of a transmission elastic assembly, the oven door body can realize the buffering self-closing of a door at 0-15 degrees, can stay at any angle at 15-70 degrees, and can buffer the self-opening of the door at 70-85 degrees; and the auxiliary elastic assembly is matched with the auxiliary elastic assembly for opening and closing the door body, so that the oven door body is easy and convenient to open and close, is flexible to use, has an ideal buffering effect when opening and closing the door, reduces noise, protects other parts of the oven, and ensures the use quality of the oven.

Description

Oven door opening and closing method with buffering function and special oven hinge thereof
Technical Field
The invention relates to the technical field of oven hinges, in particular to an oven door opening and closing method with a buffering function and a special oven hinge thereof.
Background
The oven hinge generally comprises a swing arm, a base, a spring and a pull rod, wherein the swing arm is arranged on an oven door, the base is arranged on the oven, the swing arm is hinged with the base, the spring is sleeved on the pull rod, and the pull rod is connected to the base and the swing arm in a transmission way. Then, by means of the tension or elasticity of the spring, a torsional traction mode is adopted, when the door is opened, the spring can be stretched or compressed by pulling the door, and the oven door is opened; when the oven door is closed, the oven door can be closed on the oven cabinet due to the reset action of the spring only by releasing the oven door.
However, the above-structured toaster hinge has the following disadvantages:
1. in order to achieve the sealing performance of the oven, a spring with strong tension or elasticity is generally used, so that the opening or closing of the oven door is laborious.
2. The transmission structure of the spring and the pull rod is utilized, so that the pull rod is easy to rub the base during operation, the noise is high, and the rotating stability of the oven is reduced.
3. The oven door is limited in use state, namely, the oven door can only be opened completely or closed completely, and the oven door is difficult to stop at will according to practical application, so that the use effect is influenced.
4. When the oven door is closed, the oven door and the oven cabinet are often in large collision sound and high noise due to the elastic reset function; or, when the oven door is opened, the oven door is self-opened quickly due to the heavier gravity, which is easy to damage other transmission components of the oven and affects the normal use of the oven.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, provides the oven door opening and closing method with the buffering function and the special oven hinge thereof, is convenient to operate, can strengthen the tightness of the oven door, has a power-assisted assistance door opening and closing function, has a good buffering effect when the door is opened and closed, protects other parts of an oven, can enable the oven door to stay at any angle when the oven door is opened, is flexible to use, has high rotation stability, and ensures the using effect of the oven.
The purpose of the invention is realized as follows: a method for opening and closing an oven door body with a buffering function comprises the following operation steps:
1) the oven door body buffers the self-closing door from 0 degree to 15 degrees: the swinging arm rotates by taking the connecting shaft as a fixed point, and the torque formed by the swinging arm and the base is smaller than the torque at the two ends of the connecting elastic part, so that the connecting elastic part drives the oven door body to be closed on the oven cabinet body; during closing, the buffer of the buffer damper of the buffer assembly acts on the transmission part, so that the swinging arm is damped by the transmission part to drive the oven door body to be slowly closed on the oven cabinet body;
2) the oven door body stays at any angle between 15 degrees and 70 degrees: the swinging arm rotates by taking the connecting shaft as a fixed point, the torque formed by the swinging arm and the base is equal to the torque at two ends of the connecting elastic part, so that the acting force exerted on the swinging arm is balanced with the acting force exerted on the connecting elastic part, and the swinging arm drives the oven door body to stay on the oven cabinet body at any angle;
3) the oven door body buffers the self-opening door from 70 degrees to 85 degrees: the swinging arm rotates by taking the connecting shaft as a fixed point, and the torque formed by the swinging arm and the base is greater than the torque at two ends of the connecting elastic part, so that the self-gravity of the oven door body overcomes the pulling force of the elastic connecting part and is automatically opened on the oven cabinet body; during opening, the buffering of the buffering damper of the buffering assembly acts on the transmission part, so that the oven door body is damped by the transmission part and is slowly closed on the oven cabinet body.
A special oven hinge for an oven door opening and closing method comprises a base arranged on an oven cabinet body and a swing arm arranged on the oven door body, wherein the swing arm is hinged to the base through a connecting shaft, and the base is provided with a transmission elastic component with a bidirectional buffering function and a power-assisted elastic component with a power-assisted door opening and closing function;
the transmission elastic component comprises a transmission part, a buffer assembly part and a connection elastic part, the transmission part is connected to the swing arm through a fixed shaft and is hinged to the front end of the buffer assembly part through a positioning shaft, the connection elastic part is buckled to the rear end of the buffer assembly part through a buckling shaft and is fixedly connected to the base through a fixed pin, the front end and the rear end of the buffer assembly part are respectively connected with the base through the buffer shaft and a sliding shaft, the buffer assembly part is provided with a connecting hole for pushing the buffer shaft and the sliding shaft to slide on the base, and the base is provided with a limiting hole for limiting the sliding position of the buffer shaft and the sliding shaft;
the power-assisted elastic component comprises a power-assisted frame, a supporting plate and a power-assisted elastic piece, the power-assisted frame is buckled on the base, the supporting plate is elastically reset and moved relative to the power-assisted frame under the action of the power-assisted elastic piece, a connecting wheel is installed at the front end of the supporting plate, and the swing arm is provided with an arc groove which is matched and connected with the connecting wheel when the door body is opened and closed.
Optimizing according to the aforesaid, the buffering sub-assembly includes buffering link, buffering attenuator, and the both ends of buffering link are articulated through location axle and driving medium respectively, through lock joint axle and connection elastic component lock joint, and the cylinder body of buffering attenuator passes through buffering axle sliding connection on buffering link, and the promotion pole top of buffering attenuator is pressed on the sliding shaft, and sliding shaft sliding connection is on the base, and the connecting hole sets up in the both sides with spacing communicating buffering link in hole.
According to the optimization, the limiting hole comprises a front connecting part connected with the buffer shaft for use, a sliding part matched with the buffer shaft for sliding movement with the sliding shaft, and a rear connecting part connected with the buffer shaft, and the front connecting part and the rear connecting part are respectively connected to the front end and the rear end of the sliding part.
According to the optimization, the fixing pin, the buckling shaft, the sliding shaft, the positioning shaft and the fixing shaft are not on the same horizontal line, and the fixing shaft is located above the connecting shaft.
According to the optimization, the other end part of the transmission piece is provided with the flexible connecting block which is connected with the wall surface of the base in a sliding mode along with the movement of the transmission piece.
According to the optimization, the base is provided with the positioning column and the mounting opening, and one end of the power-assisted frame is provided with the positioning hole for matching and mounting the positioning column and the mounting fixture block for matching and sliding on the mounting opening.
Optimize according to the aforesaid, the inboard of helping hand frame is equipped with the restriction backup pad elasticity and resets the restriction piece that removes usefulness, and the one end cartridge of backup pad is on the restriction piece, and the other end of backup pad slides on helping hand frame through the helping hand axle, the helping hand frame is equipped with and slides the sliding hole of being connected usefulness with helping hand axle adaptation.
According to the optimization, the connecting wheel is assembled on the power-assisted shaft, and the arc groove is provided with the arc surface which gradually changes from surface contact to line contact with the connecting wheel along with the outward swinging of the swinging arm.
According to the optimization, the swing arm is provided with the installation positioning block for preassembling and positioning the oven door body, one end of the installation positioning block is connected to the rear side of the swing arm in a shaft mode, and the installation positioning block is provided with the installation hole correspondingly installed with the oven door body.
The invention has the advantages that:
1) under the action of the transmission elastic assembly, the oven door body can realize the buffer self-closing of the door at 0-15 degrees, stop at any angle at 15-70 degrees and buffer the self-opening of the door at 70-85 degrees; the oven door body is easy and convenient to open and close, flexible to use, ideal in buffering effect, capable of reducing noise and capable of ensuring the use quality of the oven.
2) Through the structure cooperation of transmission elastic component and helping hand elastic component, can strengthen the door body inseparable power, avoid the door body mistake to open or open automatically, guarantee the result of use of oven.
3) The structure of cooperation helping hand elastic component's helping hand frame, backup pad, helping hand elastic component, fifth wheel, when the door body rotated, the fifth wheel became line contact gradually by the face contact with the circular arc trench to move at the relative helping hand of helping hand frame elasticity of helping hand elastic component effect backup pad, thereby helped the oven door body and opened and close, made the operation of opening lighter.
4) Through addding spacing pore structure, when realizing closing the door and opening the door, the buffering sub-assembly produces the cushioning effect to reach the two-way buffering effect that all has of the oven door body to close, open, use in a flexible way, the suitability is strong, and the noise abatement protects other parts of oven again, guarantees the normal use of oven.
Drawings
FIG. 1 is a schematic diagram of a closed state according to a preferred embodiment of the present invention.
Fig. 2 is a cross-sectional view of the closed position of the preferred embodiment of the present invention.
FIG. 3 is a schematic structural diagram of a base according to a preferred embodiment of the present invention.
Fig. 4 is an exploded view of the preferred embodiment of the present invention.
Fig. 5 is a schematic view of the preferred embodiment of the present invention with the swing arm at 30 deg..
Fig. 6 is a cross-sectional view of the swing arm at 30 deg. in a preferred embodiment of the present invention.
Fig. 7 is a schematic diagram of the preferred embodiment of the present invention with the swing arm at 60.
Fig. 8 is a cross-sectional view of the swing arm at 60 deg. in the preferred embodiment of the present invention.
FIG. 9 is a schematic view of the open position of the preferred embodiment of the present invention.
Fig. 10 is a cross-sectional view of the open position of the preferred embodiment of the present invention.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
As shown in fig. 1 to 10, the oven door opening and closing method with the buffering function of the present invention includes the following operation steps:
1) the oven door body buffers the self-closing door from 0 degree to 15 degrees: the swing arm 2 rotates by taking the connecting shaft 3 as a fixed point, and the torque formed by the swing arm 2 and the base 1 is smaller than the torque at two ends of the connecting elastic part 5, so that the connecting elastic part 5 drives the oven door body to be closed on the oven cabinet body; during closing, the buffer of the buffer damper 20 of the buffer assembly acts on the transmission part 4, so that the swing arm 2 is damped by the transmission part 4 to drive the oven door body to be slowly closed on the oven cabinet body. Namely, the oven door body can be closed by self when the temperature is 0-15 degrees, the operation is easy and convenient, and under the action of the buffer damper 20, the buffer effect is generated during the closing process, the noise is reduced, the use quality of the oven is ensured, and as shown in fig. 1-4, the oven door body is in a closed state.
2) The oven door body stays at any angle between 15 degrees and 70 degrees: swing arm 2 uses connecting axle 3 to rotate as the fixed point, and the moment of torsion that swing arm 2 and base 1 formed equals the moment of torsion of connecting elastic component 5 both ends, makes the effort that swing arm 2 received balanced with the effort that connects elastic component 5 and receives, makes swing arm 2 drive the arbitrary angle of oven door body and stops on the oven cabinet body. The torque generated by the connecting elastic piece 5 is utilized to balance the gravity of the oven door body, so that the oven door body stays at any angle according to practical application when being opened; the oven door is convenient to use, meets the use requirements of users, and is high in applicability, as shown in figures 5 to 6, the oven door stays at a 30-degree state, and as shown in figures 7 to 8, the oven door stays at a 60-degree state.
3) The oven door body buffers the self-opening door from 70 degrees to 85 degrees: the swing arm 2 rotates by taking the connecting shaft 3 as a fixed point, and the torque formed by the swing arm 2 and the base 1 is larger than the torque at two ends of the connecting elastic piece 5, so that the oven door body can be opened on the oven cabinet body by self gravity overcoming the pulling force of the elastic connecting piece; during opening, the buffer of the buffer damper 20 of the buffer assembly acts on the transmission member 4, so that the oven door body is damped by the transmission member 4 and slowly closed on the oven cabinet body. Namely, the oven door body can be opened by self when the temperature is 70-85 degrees, the operation is easy and convenient, and under the action of the buffer damper 20, the buffer effect is generated during the opening, the noise is reduced, and the use quality of the oven is ensured. As shown in fig. 9 to 10, the oven door body is in an open state.
Referring to fig. 1 to 10, the special oven hinge using the method for opening and closing the oven door body includes a base 1 installed on the oven cabinet body and a swing arm 2 installed on the oven door body, wherein the swing arm 2 is hinged to the base 1 through a connecting shaft 3. The base 1 is provided with a transmission elastic assembly with a bidirectional buffering function and an assistance elastic assembly with an assistance door body for opening and closing.
Referring to fig. 1 to 10, the transmission elastic component includes a transmission member 4, a damping assembly, and a connection elastic member 5. The transmission part 4 is connected to the swing arm 2 through the fixed shaft 6, is hinged to the front end of the buffering assembly part through the positioning shaft 7, the connection elastic part 5 is buckled to the rear end of the buffering assembly part through the buckling shaft 8 and is fixedly connected to the base 1 through the fixing pin 9, the front end and the rear end of the buffering assembly part are respectively connected with the base 1 through the buffering shaft 10 and the sliding shaft 11, the buffering assembly part is provided with a connecting hole 12 for pushing the buffering shaft 10 and the sliding shaft 11 to slide on the base 1, and the base 1 is provided with a limiting hole 13 for limiting the sliding position of the buffering shaft 10 and the sliding shaft 11.
The buffer assembly comprises a buffer connecting frame 19 and a buffer damper 20, two ends of the buffer connecting frame 19 are hinged to the transmission piece 4 through a positioning shaft 7 respectively, and are buckled with the connection elastic piece 5 through a buckling shaft 8, a cylinder body of the buffer damper 20 is connected to the buffer connecting frame 19 through a buffer shaft 10 in a sliding mode, a push rod of the buffer damper 20 is pressed against a sliding shaft 11, the sliding shaft 11 is connected to the base 1 in a sliding mode, and the connecting holes 12 are formed in two sides of the buffer connecting frame 19 communicated with the limiting holes 13.
The stopper hole 13 includes a front connection portion 131 for connecting to the buffer shaft 10, a sliding portion 132 for fitting the buffer shaft 10 to slide on the sliding shaft 11, and a rear connection portion 133 for connecting to the buffer shaft 10, and the front connection portion 131 and the rear connection portion 133 are connected to front and rear ends of the sliding portion 132, respectively.
That is, when the oven door rotates at 0 ° to 15 ° (including 0 °), the torque of the connection elastic member 5 becomes an elastic force arm, and as the torque generated by the door weight when the oven door rotates becomes larger and larger, the elastic force generated by stretching the connection elastic member 5 also increases, so that the torque generated by the connection elastic member 5 is enough to automatically close the oven door on the oven cabinet.
However, during oven closing, the transmission member 4 moves back along the base 1 as the swing arm 2 rotates inward, thereby pulling the buffer link 19 toward the rear end of the base 1. When the sliding shaft 11 moves to the rear connecting part 133, the buffer frame continues to move along with the transmission member 4, so that the buffer shaft 10 carries the cylinder body of the buffer damper 20 to move towards the push rod direction, and the buffer damper 20 generates buffer action when being closed.
When the oven door body rotates at 15-70 degrees, the torque generated by the door weight is larger and larger when the oven door body rotates, the elastic force generated by stretching the connecting elastic piece 5 is increased, and the torque generated by the connecting elastic piece 5 can balance the gravity of the oven door body, so that the oven door body stays at any angle according to practical application when opened.
When the oven door body rotates at 15-70 degrees, the torque generated by the door weight is larger and larger when the oven door body rotates. At this time, the base 1 is provided with a stopper hole 13 for restricting the sliding position of the slide shaft 11. When the sliding shaft 11 slides to the maximum limiting position on the limiting hole 13, the elastic force generated by stretching the connecting elastic piece 5 is unchanged, so that the torque generated by the connecting elastic piece 5 is smaller than the torque generated by the gravity of the oven door body, and the oven door body is automatically opened.
However, during the opening of the oven door, the transmission member 4 moves forward along the base 1 as the swing arm 2 rotates outward, thereby pulling the buffer link 19 to move toward the front end of the base 1. When the buffer shaft 10 moves to the front connection portion 131, the buffer frame continues to move along with the transmission member 4, so that the sliding shaft 11 presses the push rod of the buffer damper 20 to move toward the cylinder, so that the buffer damper 20 performs a buffer function when the door is opened.
Like this, under the structure cooperation of transmission elastic component's connection elastic component 5, driving medium 4, connect elastic component 5 atress all the time, the moment of torsion that makes door torsion angle produce and the moment of torsion of being connected elastic component 5 form the mutual transmission effort relation between the door body and the base 1 to stop in arbitrary angle when reaching the oven door body and opening, improve the suitability, can make the oven door body again and cushion the self-closing door and cushion the self-opening door, stability is high, convenient operation, and it is nimble to use.
The fixing pin 9, the fastening shaft 8, the sliding shaft 11, the positioning shaft 7 and the fixing shaft 6 are not on the same horizontal line, and the fixing shaft 6 is positioned above the connecting shaft 3. The power transmission is enhanced, and the rotation stability of the oven door body is improved.
Referring to fig. 1 to 10, a power-assisted elastic assembly for driving a door body to open and close by a swing-assisted arm 2 is mounted on a base 1, and the power-assisted elastic assembly includes a power-assisted frame 14, a support plate 15 and a power-assisted elastic member 16. Wherein, base 1 is equipped with reference column 22, installing port 23. One end of the power-assisted frame 14 is provided with a positioning hole 24 for matching and installing the positioning column 22 and an installation fixture block 25 adapted to be slidably installed on the installation opening 23, so that the power-assisted frame 14 is buckled on the base 1. Simple to operate strengthens connecting the steadiness, ensures the use quality of oven hinge.
The elastic assist element 16 elastically returns and moves relative to the assist frame 14 by acting on the support plate 15. The inner side of the power-assisted frame 14 is provided with a limiting block 26 for limiting the elastic resetting movement of the supporting plate 15, one end of the supporting plate 15 is inserted into the limiting block 26, the other end of the supporting plate 15 slides on the power-assisted frame 14 through a power-assisted shaft 27, and the power-assisted frame 14 is provided with a sliding hole 28 matched with the power-assisted shaft 27 for sliding connection.
In addition, a connecting wheel 17 is installed at the front end of the supporting plate 15, and the swing arm 2 is provided with an arc groove position 18 which is matched and connected with the connecting wheel 17 when the door body is opened and closed. In practical application, the connecting wheel 17 is mounted on the assisting shaft 27, and the arc groove 18 is provided with an arc surface 181 which gradually changes from surface contact to line contact with the connecting wheel 17 as the swing arm 22 swings outwards.
When the oven door body is closed at the cabinet body, the oven door body is compressed on the connecting wheel 17, under the effect of the power-assisted elastic part 16, the arc surface 181 of the power-assisted arc groove position 18 is in surface contact with the connecting wheel 17, and the reinforced door body is tightly pressed on the cabinet body, so that the oven door body is tightly closed on the oven cabinet body under the dual effects of the power-assisted elastic component and the transmission elastic component, the wrong door body is effectively prevented from being opened or automatically opened, and the connection stability is improved.
Referring to fig. 1 to 10, the other end of the driving member 4 is mounted with a flexible connecting block 21 slidably connected to the wall surface of the base 1 as it moves. Therefore, the structure that the fixing pin 9, the buckling shaft 8, the sliding shaft 11, the positioning shaft 7 and the fixing shaft 6 are not on the same horizontal line is combined, the surface contact between the transmission piece 4 and the base 1 is reduced, and the structure is protected doubly, so that the transmission stability is high, the friction is reduced, and the noise is reduced.
In addition, the swing arm 2 is provided with a mounting and positioning block 29 for preassembling and positioning the oven door body, one end of the mounting and positioning block 29 is connected to the rear side of the swing arm 2 in a shaft mode, and the mounting and positioning block 29 is provided with a mounting hole which is correspondingly mounted with the oven door body. Make things convenient for swing arm 2 and oven door body location installation, convenient operation strengthens connection stability, guarantees the service quality of oven.
The above embodiments are only specific embodiments with better effects, and all the structures which are the same as or equivalent to the oven door opening and closing method with the buffering function and the special oven hinge thereof are within the protection scope of the invention.

Claims (7)

1. A special oven hinge with a buffering function for an oven door opening and closing method comprises the following operation steps:
1) the oven door body buffers the self-closing door from 0 degree to 15 degrees: the swing arm (2) rotates by taking the connecting shaft (3) as a fixed point, and the torque formed by the swing arm (2) and the base (1) is smaller than the torque at the two ends of the connecting elastic part (5), so that the connecting elastic part (5) drives the oven door body to be closed on the oven cabinet body; during closing, the buffer of the buffer damper (20) of the buffer assembly acts on the transmission part (4), so that the swing arm (2) is damped by the transmission part (4) to drive the oven door body to be slowly closed on the oven cabinet body;
2) the oven door body stays at any angle between 15 degrees and 70 degrees: the swing arm (2) rotates by taking the connecting shaft (3) as a fixed point, the torque formed by the swing arm (2) and the base (1) is equal to the torque at the two ends of the connecting elastic part (5), so that the acting force exerted on the swing arm (2) is balanced with the acting force exerted on the connecting elastic part (5), and the swing arm (2) drives the oven door body to stay on the oven cabinet body at any angle;
3) the oven door body buffers the self-opening door from 70 degrees to 85 degrees: the swing arm (2) rotates by taking the connecting shaft (3) as a fixed point, and the torque formed by the swing arm (2) and the base (1) is greater than the torque at the two ends of the connecting elastic part (5), so that the self-gravity of the oven door body overcomes the pulling force of the connecting elastic part (5) and is opened on the oven cabinet body; during opening, the buffer of the buffer damper (20) of the buffer assembly acts on the transmission part (4), so that the oven door body is damped by the transmission part (4) and is slowly closed on the oven cabinet body;
use take buffer function's oven door body to open and close special oven hinge of method, including installing in the base (1) of the oven cabinet body, installing in the swing arm (2) of the oven door body, swing arm (2) articulate on base (1) through connecting axle (3), its characterized in that: the base (1) is provided with a transmission elastic assembly with a bidirectional buffering function and a power-assisted elastic assembly with a power-assisted door body for opening and closing;
the transmission elastic component comprises a transmission part (4), a buffering assembly and a connection elastic part (5), the transmission part (4) is connected to the swing arm (2) through a fixed shaft (6) and is hinged to the front end of the buffering assembly through a positioning shaft (7), the connection elastic part (5) is buckled to the rear end of the buffering assembly through a buckling shaft (8) and is fixedly connected to the base (1) through a fixing pin (9), the front end and the rear end of the buffering assembly are respectively connected with the base (1) through a buffering shaft (10) and a sliding shaft (11), the buffering assembly is provided with a connecting hole (12) for pushing the buffering shaft (10) and the sliding shaft (11) to slide on the base (1), and the base (1) is provided with a limiting hole (13) for limiting the sliding positions of the buffering shaft (10) and the sliding shaft (11);
the power-assisted elastic assembly comprises a power-assisted frame (14), a supporting plate (15) and a power-assisted elastic part (16), wherein the power-assisted frame (14) is buckled on the base (1), the power-assisted elastic part (16) acts on the supporting plate (15) to elastically reset and move relative to the power-assisted frame (14), a connecting wheel (17) is installed at the front end of the supporting plate (15), and an arc groove position (18) which is matched and connected with the connecting wheel (17) when the door body is opened and closed is arranged on the swing arm (2);
the buffer assembly comprises a buffer connecting frame (19) and a buffer damper (20), two ends of the buffer connecting frame (19) are hinged with the transmission part (4) through a positioning shaft (7) respectively and are buckled with the connection elastic part (5) through a buckling shaft (8), a cylinder body of the buffer damper (20) is connected onto the buffer connecting frame (19) through a buffer shaft (10) in a sliding mode, a push rod of the buffer damper (20) is pressed against a sliding shaft (11), the sliding shaft (11) is connected onto the base (1) in a sliding mode, and connecting holes (12) are formed in two sides of the buffer connecting frame (19) communicated with the limiting hole (13);
the inside of helping hand frame (14) is equipped with restriction backup pad (15) elasticity and resets restriction piece (26) that the removal used, and the one end cartridge of backup pad (15) is on restriction piece (26), and the other end of backup pad (15) slides on helping hand frame (14) through helping hand axle (27), helping hand frame (14) are equipped with and slide sliding hole (28) of being connected usefulness with helping hand axle (27) adaptation.
2. The special oven hinge with the buffer function for the opening and closing method of the oven door body according to claim 1 is characterized in that: the limiting hole (13) comprises a front connecting part (131) connected with the buffer shaft (10) for sliding, a sliding part (132) matched with the buffer shaft (10) and the sliding shaft (11) for sliding, and a rear connecting part (133) connected with the buffer shaft (10), wherein the front connecting part (131) and the rear connecting part (133) are respectively connected to the front end and the rear end of the sliding part (132).
3. The special oven hinge with the buffer function for the opening and closing method of the oven door body according to claim 1 is characterized in that: the fixing pin (9), the buckling shaft (8), the sliding shaft (11), the positioning shaft (7) and the fixing shaft (6) are not on the same horizontal line, and the fixing shaft (6) is located above the connecting shaft (3).
4. The special oven hinge for the oven door body opening and closing method with the buffering function according to claim 3, is characterized in that: and a flexible connecting block (21) which is connected with the wall surface of the base (1) in a sliding manner along with the movement of the other end of the transmission piece (4).
5. The special oven hinge with the buffer function for the opening and closing method of the oven door body according to claim 1 is characterized in that: the base (1) is provided with a positioning column (22) and an installation opening (23), and one end of the power-assisted frame (14) is provided with a positioning hole (24) which is matched and installed by the positioning column (22) and an installation clamping block (25) which is matched and glidingly installed on the installation opening (23).
6. The special oven hinge with the buffer function for the opening and closing method of the oven door body according to claim 1 is characterized in that: the connecting wheel (17) is assembled on the power-assisted shaft (27), and the arc groove (18) is provided with an arc surface (181) which gradually changes from surface contact to line contact with the connecting wheel (17) along with the outward swinging of the swinging arm (2).
7. The special oven hinge with the buffer function for the opening and closing method of the oven door body according to claim 1 is characterized in that: the swing arm (2) is provided with a mounting positioning block (29) for preassembling and positioning the oven door body, one end of the mounting positioning block (29) is connected to the rear side of the swing arm (2) in a shaft mode, and the mounting positioning block (29) is provided with a mounting hole which is correspondingly mounted with the oven door body.
CN201810138548.0A 2018-02-10 2018-02-10 Oven door opening and closing method with buffering function and special oven hinge thereof Active CN108360937B (en)

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CN111173389A (en) * 2018-11-09 2020-05-19 广东美的厨房电器制造有限公司 Door body hinge of cooking utensil and cooking utensil with same
CN111520019B (en) * 2019-02-01 2024-04-05 青岛海尔智慧厨房电器有限公司 Automatic door opening and closing mechanism and method and household appliance
IT202000003254A1 (en) * 2020-02-18 2021-08-18 Brera Cerniere Srl Household appliance

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DE4038259A1 (en) * 1989-12-21 1991-06-27 Anthony S Mfg Co HINGE ARRANGEMENT FOR SELF-CLOSING DOORS
CN202467427U (en) * 2011-12-08 2012-10-03 广东星徽精密制造股份有限公司 An oven hinge
CN204754540U (en) * 2015-01-29 2015-11-11 胡国衡 Novel oven hinge with chamber door locking function
CN206513184U (en) * 2017-02-22 2017-09-22 东莞市鼎太电器有限公司 Automatic buffer switchs baking box door hinge
CN107355160B (en) * 2017-08-28 2023-06-06 珠海格力电器股份有限公司 Damping hinge and device provided with same

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Address before: 225300 north side of Yongfeng Road, high tech Industrial Park, Gaogang District, Taizhou City, Jiangsu Province

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