CN108914501B - Upper cover closing buffer device and washing machine - Google Patents
Upper cover closing buffer device and washing machine Download PDFInfo
- Publication number
- CN108914501B CN108914501B CN201810873490.4A CN201810873490A CN108914501B CN 108914501 B CN108914501 B CN 108914501B CN 201810873490 A CN201810873490 A CN 201810873490A CN 108914501 B CN108914501 B CN 108914501B
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- China
- Prior art keywords
- upper cover
- transmission shaft
- magnetic
- flexible cable
- elastic
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00
- D06F39/12—Casings; Tubs
- D06F39/14—Doors or covers; Securing means therefor
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
- D06F37/30—Driving arrangements
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
Abstract
The invention provides an upper cover closing buffer device and a washing machine comprising the buffer device, wherein the buffer device comprises a transmission shaft, a flexible cable and an elastic structure, the transmission shaft is in transmission connection with a rotating shaft of an upper cover, the traction end of the flexible cable is connected with the transmission shaft and is used for winding the flexible cable when the upper cover falls, the elastic structure is connected with the bearing end of the flexible cable and is used for generating gradually-increased stretching resistance when the flexible cable is wound by the transmission shaft, and the elastic structure comprises a first magnetic part, a second magnetic part and an elastic part, wherein the first magnetic part and the second magnetic part are in attraction fit with each other, and the elastic part is used for generating the stretching resistance when the first magnetic part and the second magnetic part are attracted with each other. The buffer device can effectively solve the problem that the falling speed of the existing upper cover is too high in the closing process.
Description
Technical Field
The invention relates to the technical field of washing machines, in particular to a design of an upper cover closing buffer device.
Background
Because current full-automatic washing machine's glass upper cover weight is great, in closed process, easily because of the upper cover whereabouts produces the big scheduling problem of colliding with, accidental injury user and noise too fast, for this reason, current upper cover closed buffer scheme includes:
1. grease is added into a rotating shaft of the upper cover, the grease flows into a cavity B from a cavity A when the rotating shaft rotates, resistance is generated by the flowing of the grease, and the falling speed of the upper cover is easy to be unstable due to the fact that the performance of the grease is greatly influenced by the temperature.
2. The traditional damping structure cannot effectively restrain acceleration when the falling speed of the upper cover is too high due to the limitation of the structure, and the damping effect is poor.
3. When the motor drives the upper cover to be automatically opened and closed, the structure is complex, the cost is high, the motor is required to be matched with a power supply for use, and the falling speed of the upper cover cannot be slowed down under the condition of power failure.
Disclosure of Invention
The invention aims to provide an upper cover closing buffer device to solve the problem that the existing upper cover is too high in falling speed.
In order to achieve the purpose, the invention adopts the following technical scheme to realize the purpose:
the utility model provides a closed buffer of upper cover, includes transmission shaft, flexible cable and elastic construction, the transmission shaft be used for with the rotation axis transmission of upper cover is connected, the end of pulling of flexible cable with the transmission shaft is connected, be used for the rolling in when the upper cover falls the transmission shaft, elastic construction with the bearing end of flexible cable is connected, is used for the transmission shaft rolling produce gradual increase tensile resistance during the flexible cable, elastic construction includes inhales first magnetic part of complex, second magnetic part mutually and produces when first magnetic part, second magnetic part are inhaled mutually elastic part that tensile resistance was used.
Further, in the falling process of the upper cover, when alpha max is larger than or equal to alpha 1, the upper cover falls in an accelerated mode, and when alpha 1 is larger than or equal to alpha 2, the upper cover falls in a decelerated mode, wherein alpha is a real-time opening and closing angle of the upper cover in the closing process, and alpha max is a maximum opening and closing angle of the upper cover.
Further, when α = α 2>0, the elastic member pulls the first and second magnetic members apart.
Further, the buffer device comprises a gear set or a transmission belt for transmission between the rotating shaft and the transmission shaft, the gear set comprises a first gear fixed on the rotating shaft of the upper cover and a second gear fixed on the transmission shaft, and the diameter of the second gear is smaller than that of the first gear.
Further, the transmission shaft is fixed with a winding wheel for winding the flexible cable, and the diameter of the winding wheel is larger than that of the second gear.
Further, the first magnetic part is fixed on the flexible cable, the second magnetic part is fixed on the elastic part, and the elastic part is fixed below the first magnetic part.
Furthermore, the elastic part is fixed on the flexible cable, the second magnetic part is fixed on the elastic part, and the first magnetic part is fixed below the second magnetic part.
Further, the damping device comprises a vertical guide rail guiding the movement direction of the elastic structure.
Further, the damping means comprises a torsion spring providing resistance during closing of the upper cover.
Based on the structural design of the upper cover closing buffer device, the invention also provides a washing machine which comprises the upper cover closing buffer device.
Further, the transmission shaft is arranged on the control disc seat, and the bottom end of the elastic piece is fixed on the machine body.
Compared with the prior art, the invention has the advantages and beneficial effects that:
the upper cover closing buffer device is not required to be driven by a power supply, the structure composition is simple, stable and reliable, and particularly, in the process that the upper cover falls from the opening position to the closing position, the transmission shaft rotates along with the rotating shaft of the upper cover and synchronously winds the flexible cable, the elastic structure connected with the flexible cable is driven to generate gradually increased stretching resistance, and the transmission shaft can wind the flexible cable for multiple times, so that the elastic part can generate enough elastic deformation, the generated stretching resistance can effectively resist the falling acceleration of the upper cover, and the problems that the upper cover falls to the closing position at an excessively high speed to cause collision damage, high noise, accidental injury to users and the like are avoided.
Other features and advantages of the present invention will become more apparent from the detailed description of the embodiments of the present invention when taken in conjunction with the accompanying drawings.
Drawings
FIG. 1 is a front view of a top closure damper according to an embodiment of the present invention;
FIG. 2 is a side view of a top closure cushioning device according to one embodiment of the present invention;
fig. 3 is a side view of a closing damper for an upper cover according to another embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.
The embodiment provides an upper cover closing buffer device which can be applied to any household appliance with an open top, and comprises a transmission shaft 11, a flexible cable 12 and an elastic structure, wherein the transmission shaft 11 is in transmission connection with a rotating shaft 21 of an upper cover 20 by rotating along with the rotating shaft 21. Two ends of the flexible cable 12 are respectively a traction end and a bearing end, and the traction end of the flexible cable 12 is fixedly connected with the transmission shaft 11 and is used for being wound on the transmission shaft 11 when the upper cover 20 falls. The elastic structure is fixedly connected to the bearing end of the flexible cable 12, and is configured to generate a gradually increasing tensile resistance when the flexible cable 12 is wound by the transmission shaft 11, as shown in fig. 1 and 2, the elastic structure includes a first magnetic component 13, a second magnetic component 14, and an elastic component 15, the first magnetic component 13 and the second magnetic component 14 are attracted and matched with each other when the upper cover 20 is in the open position, and when the upper cover 20 falls, the attracted first magnetic component 13 and the attracted second magnetic component 14 pull the elastic component 15 to generate elastic deformation, so that the elastic component 15 generates the tensile resistance.
The arrangement structure of the elastic structure is not exclusive, and in order to improve the buffering effect, it is preferable that the first magnetic member 13, the second magnetic member 14 and the elastic member 15 are vertically arranged along the downward hanging direction of the flexible cable 12, specifically, the first magnetic member 13 is fixedly connected to the bearing end of the flexible cable 12 in the present embodiment, the elastic member 15 is fixed below the first magnetic member 13, specifically, the elastic member 15 is fixed on the ground or the body of the household appliance having the buffering device in the present embodiment, the second magnetic member 14 is fixed on the upper end of the flexible cable, the transmission shaft 11 rotates along with the rotating shaft 21 during the falling of the upper cover 20 from the open position, the flexible cable 12 is continuously wound on the transmission shaft 11 and drives the first magnetic member 13 and the second magnetic member 14 which are attracted and matched to rise, and at the same time, the elastic member 15 is stretched to generate elastic deformation, that is, the elastic member 15 generates stretching resistance by passive stretching during the falling of the upper cover 20.
As shown in fig. 3, in another embodiment, an elastic member 15 is fixedly connected to the load-bearing end of the wire 12, a second magnetic member 14 is fixedly connected to the elastic member 15, and the first magnetic member 13 is fixed below the second magnetic member 14.
The transmission shaft 11 may be a part of the axial extension of the rotating shaft 21, and in order to adjust the installation position of the transmission shaft 11, for example, when applied to a washing machine, the transmission shaft 11 is rotatably installed on the control panel base 30 of the washing machine, and a transmission belt may be used to realize transmission connection, and in order to realize speed increase and torque reduction, the present embodiment specifically adopts a gear set to realize transmission connection, the gear set includes a first gear 211 and a second gear 111 that are in meshing engagement, wherein the first gear 211 is fixed on the rotating shaft 21, the second gear 111 is fixed on the transmission shaft 11, and the diameter of the second gear 111 is designed to be smaller than the diameter of the first gear 211, so as to increase the rotating speed of the transmission shaft 11 and reduce the torque required to resist the falling of the upper cover 20.
In order to realize the orderly winding of the flexible cable 12 on the transmission shaft 11, the winding wheel 16 for winding the flexible cable 12 is fixed on the transmission shaft 11, and the diameter of the winding wheel 16 is larger than that of the second gear 111, which is beneficial to further accelerate the elastic deformation of the elastic member 15 by increasing the winding speed of the flexible cable 12 on one hand, and on the other hand, due to the lever action principle, the elastic member 15 is more labor-saving when pulling the flexible cable 12, thereby being beneficial to prolonging the service cycle of the elastic member 15, in order to simplify the structure, the flexible cable 12 in this embodiment can be a flexible cable, the elastic member 15 can be a tension spring, the bottom end of the tension spring can be fixed on the ground or on the body of the washing machine, the top end of the tension spring is fixed with the second magnetic member 14, and the first magnetic member 13 and the second magnetic member 14 only need to realize the attraction and the cooperation, both can be the magnetic members.
The upper cover 20 using the buffering device of the present embodiment includes the following stages in the falling process:
when α max > α ≧ α 1, the upper cover 20 falls with acceleration, and the tensile resistance F1 generated due to the small elastic deformation of the elastic member 15 at the beginning is not enough to overcome the gravity G of the upper cover 20, so that the upper cover 20 falls with acceleration under the action of its own gravity G;
when alpha 1 is larger than or equal to alpha 2, the upper cover 20 falls in a decelerating way, after the upper cover 20 falls for a period of time, the elastic part 15 generates larger elastic deformation, and the tensile resistance F1 is increased enough to overcome the gravity G of the upper cover 20, so that the upper cover 20 starts to fall in a decelerating way after reaching a higher falling speed V, and when the upper cover 20 falls to a position close to a closed position, the falling speed V of the upper cover 20 is greatly reduced, thereby effectively avoiding the problems of collision damage between the upper cover 20 and the control disc seat 30, and the generated noise and hidden troubles.
Wherein α is a real-time opening and closing angle of the upper cover 20 in the closing process, α max is a maximum opening and closing angle of the upper cover 20, and α 2 is greater than or equal to 0 and is greater than α 1 and is greater than α max.
In some embodiments, it may be set as desired such that when α = α 2=0, the falling speed V of the upper cover 20 is reduced to 0 to achieve slow closing of the upper cover 20.
In order to increase the service cycle of the elastic member 15, in the buffer device of the present embodiment, when α = α 2>0, the tensile resistance F1 of the elastic member 15 is greater than the magnetic attraction force F2 between the first magnetic member 13 and the second magnetic member 14, and the elastic member 15 pulls the second magnetic member 14 away from the first magnetic member 13, as shown in fig. 1 and 2, even if the falling speed V of the upper cover 20 at this time is not 0 and the upper cover 20 is not closed yet, since the upper cover 20 is already close to the closed position, the low speed at the time of closing the upper cover 20 can be ensured even if the tensile resistance F1 that hinders the falling of the upper cover 20 is removed.
Or when V is not 0, in order to further reduce the falling speed V of the upper cover 20 when approaching the closed position, in the present embodiment, a torsion spring 17 is further sleeved on the rotating shaft 21 to hinder the upper cover 20 from falling, specifically, two ends of the torsion spring 17 can respectively abut against the upper cover 20 and the control panel seat 30. When the elastic member 15 pulls the second magnetic member 14 to be separated from the first magnetic member 13, the torsion spring 17 continues to provide a resistance force F3 so that the upper cover 20 is slowly closed.
It should be noted that, when the damping device includes the torsion spring 17, the resultant force of the first stretching resistance F1 and the resistance F3 during the falling of the upper cover is not enough to overcome the gravity G of the upper cover 20, so that the upper cover 20 is first accelerated to fall; after the upper cover 20 falls for a period of time, the resultant force of the tensile resistance force F1 and the resistance force F3 is enough to overcome the gravity G of the upper cover 20 so that the upper cover 20 falls at a reduced speed after falling at an accelerated speed for a period of time. As described above, the upper cover 20 can be decelerated to fall earlier with the aid of the resistance F3.
In order to better guide the moving direction of the elastic structure and reduce the force loss of the tensile resistance F1, the buffer device of the embodiment further includes a vertical guide rail 18, which may include a first half shell and a second half shell defining a vertical channel, the first magnetic element 13, the second magnetic element 14 and the elastic element 15 are accommodated in the channel, the flexible cable 12 hangs down into the channel and does not contact with the guide rail 18, and the bottom end of the elastic element 15 is fixed on the guide rail 18, so that the bottom end of the elastic element 15 is fixed by fixing the guide rail 18 on the body of the washing machine.
Based on the structural design of the above-mentioned buffering device, the present embodiment further provides a washing machine including the above-mentioned buffering device, and the installation of the transmission shaft 11 and the elastic structure can be referred to above, specifically, the buffering device is disposed on both left and right sides of the upper cover 20 of the washing machine, which will not be described in detail herein.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions separate from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (8)
1. A cushioning upper cover closure device, comprising:
the transmission shaft is in transmission connection with the rotating shaft of the upper cover;
the traction end of the flexible cable is connected with the transmission shaft and is used for rolling on the transmission shaft when the upper cover falls;
an elastic structure connected with the bearing end of the flexible cable and used for gradually increasing when the flexible cable is wound by the transmission shaft
The elastic structure comprises a first magnetic part and a second magnetic part which are in attraction fit with each other, and an elastic part for generating the stretching resistance when the first magnetic part and the second magnetic part are attracted with each other;
during the fall of the upper cover,
when alpha max is larger than alpha and larger than alpha 1, the upper cover falls down in an accelerated way,
when alpha 1 is larger than alpha and larger than or equal to alpha 2, the upper cover falls down in a decelerating way,
when the α = α 2>0 is detected, the elastic member pulls the first magnetic member and the second magnetic member to be separated;
and the alpha is a real-time opening and closing angle of the upper cover in the closing process, and the alpha max is a maximum opening and closing angle of the upper cover.
2. The device as claimed in claim 1, comprising a gear set or a belt for transmission between the rotating shaft and the transmission shaft, wherein the gear set comprises a first gear fixed to the rotating shaft of the upper cover and a second gear fixed to the transmission shaft, and the diameter of the second gear is smaller than that of the first gear.
3. The device as claimed in claim 2, wherein the transmission shaft is fixed with a winding wheel for winding the flexible cable, and the diameter of the winding wheel is larger than that of the second gear.
4. The overcap closure cushioning device of claim 1, wherein the first magnetic member is secured to the flexible cord, the second magnetic member is secured to the resilient member, and the resilient member is secured beneath the first magnetic member.
5. A device for cushioning lid closing according to claim 1, wherein said resilient member is secured to said flexible member
The second magnetic piece is fixed on the elastic piece, and the first magnetic piece is fixed below the second magnetic piece.
6. The upper cover closure cushioning device of claim 1, comprising vertical rails guiding the direction of movement of the resilient structure.
7. The upper lid closure cushioning device of claim 1, comprising a torsion spring that provides resistance during closure of the upper lid.
8. A washing machine characterized by comprising the upper cover closure damper device as claimed in any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810873490.4A CN108914501B (en) | 2018-08-02 | 2018-08-02 | Upper cover closing buffer device and washing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810873490.4A CN108914501B (en) | 2018-08-02 | 2018-08-02 | Upper cover closing buffer device and washing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108914501A CN108914501A (en) | 2018-11-30 |
| CN108914501B true CN108914501B (en) | 2023-03-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810873490.4A Active CN108914501B (en) | 2018-08-02 | 2018-08-02 | Upper cover closing buffer device and washing machine |
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| Country | Link |
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| CN (1) | CN108914501B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103422760A (en) * | 2012-05-18 | 2013-12-04 | 坂口俊 | Sliding door pulling and buffering device |
| EP2677100A2 (en) * | 2012-06-22 | 2013-12-25 | GEZE GmbH | Sliding door assembly |
| CN104746316A (en) * | 2013-12-25 | 2015-07-01 | 海尔集团公司 | Opening-closing auxiliary structure of upper cover of washing machine and washing machine |
| CN104862928A (en) * | 2014-02-24 | 2015-08-26 | 海尔集团公司 | Opening and closing mechanism of upper cover of washing machine and washing machine |
| JP2017202072A (en) * | 2016-05-11 | 2017-11-16 | 日立アプライアンス株式会社 | Electric washing machine |
| CN107523970A (en) * | 2017-09-18 | 2017-12-29 | 青岛海尔洗衣机有限公司 | A kind of washing machine cover opening-closing structure and washing machine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10655376B2 (en) * | 2016-08-10 | 2020-05-19 | Whirlpool Corporation | Dishwasher door with counterbalance assembly |
-
2018
- 2018-08-02 CN CN201810873490.4A patent/CN108914501B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103422760A (en) * | 2012-05-18 | 2013-12-04 | 坂口俊 | Sliding door pulling and buffering device |
| EP2677100A2 (en) * | 2012-06-22 | 2013-12-25 | GEZE GmbH | Sliding door assembly |
| CN104746316A (en) * | 2013-12-25 | 2015-07-01 | 海尔集团公司 | Opening-closing auxiliary structure of upper cover of washing machine and washing machine |
| CN104862928A (en) * | 2014-02-24 | 2015-08-26 | 海尔集团公司 | Opening and closing mechanism of upper cover of washing machine and washing machine |
| JP2017202072A (en) * | 2016-05-11 | 2017-11-16 | 日立アプライアンス株式会社 | Electric washing machine |
| CN107523970A (en) * | 2017-09-18 | 2017-12-29 | 青岛海尔洗衣机有限公司 | A kind of washing machine cover opening-closing structure and washing machine |
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| Publication number | Publication date |
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| CN108914501A (en) | 2018-11-30 |
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| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Li Huagang Inventor after: Zhuang Ruying Inventor after: Li Qiang Inventor after: Chou Zuozheng Inventor after: Luan Jingwu Inventor before: Chou Zuozheng Inventor before: Zhuang Ruying Inventor before: Luan Jingwu Inventor before: Li Qiang |
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| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20230221 Address after: 266101 Haier Industrial Park, 1 Haier Road, Laoshan District, Shandong, Qingdao Applicant after: QINGDAO HAIER WASHING MACHINE Co.,Ltd. Applicant after: Haier Zhijia Co.,Ltd. Address before: 266101 Haier Industrial Park, 1 Haier Road, Shandong, Qingdao Applicant before: QINGDAO HAIER WASHING MACHINE Co.,Ltd. |
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