CN112458706A - Upper cover damper and washing machine - Google Patents
Upper cover damper and washing machine Download PDFInfo
- Publication number
- CN112458706A CN112458706A CN201910847337.9A CN201910847337A CN112458706A CN 112458706 A CN112458706 A CN 112458706A CN 201910847337 A CN201910847337 A CN 201910847337A CN 112458706 A CN112458706 A CN 112458706A
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- sleeve
- upper cover
- elastic
- elastic piece
- sliding block
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- 238000005406 washing Methods 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 claims abstract description 27
- 230000006835 compression Effects 0.000 claims abstract description 13
- 238000007906 compression Methods 0.000 claims abstract description 13
- 230000008569 process Effects 0.000 claims description 20
- 230000013011 mating Effects 0.000 claims description 16
- 230000007704 transition Effects 0.000 claims description 11
- 210000003205 muscle Anatomy 0.000 claims description 8
- 230000001050 lubricating effect Effects 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 4
- 230000001133 acceleration Effects 0.000 abstract description 9
- 208000027418 Wounds and injury Diseases 0.000 abstract 1
- 230000006378 damage Effects 0.000 abstract 1
- 208000014674 injury Diseases 0.000 abstract 1
- 238000013016 damping Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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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
- D06F37/20—Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations
- D06F37/24—Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations in machines with a receptacle rotating or oscillating about a vertical axis
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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
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
- E05D3/00—Hinges with pins
- E05D3/02—Hinges with pins with one pin
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
- E05D5/00—Construction of single parts, e.g. the parts for attachment
- E05D5/02—Parts for attachment, e.g. flaps
- E05D5/08—Parts for attachment, e.g. flaps of cylindrical shape
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
- E05D5/00—Construction of single parts, e.g. the parts for attachment
- E05D5/10—Pins, sockets or sleeves; Removable pins
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- 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
- E05F5/06—Buffers or stops limiting opening of swinging wings, e.g. floor or wall stops
- E05F5/08—Buffers or stops limiting opening of swinging wings, e.g. floor or wall stops with springs
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
- E05D5/00—Construction of single parts, e.g. the parts for attachment
- E05D5/10—Pins, sockets or sleeves; Removable pins
- E05D2005/102—Pins
- E05D2005/106—Pins with non-cylindrical portions
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
Abstract
The invention provides an upper cover damper and a washing machine, wherein the upper cover damper comprises a pin shaft used for being connected with a hinged seat and a sleeve used for being connected with an upper cover; one end of the pin shaft extends into the sleeve; and a sliding block and an elastic piece are arranged in the sleeve; the sliding block is connected with the pin shaft; the elastic piece at least comprises a first elastic piece and a second elastic piece with different elastic coefficients, one end of the first elastic piece is abutted against the sliding block, the other end of the first elastic piece is connected with one end of the second elastic piece, and the other end of the second elastic piece is abutted against the bottom wall of the sleeve; the pin shaft can rotate relative to the sleeve to drive the sliding block to move relative to the sleeve along the axial direction of the sleeve, so that the compression amount of the elastic part is changed. The upper cover is at the descending in-process, and the elastic component can provide the resistance, avoids the upper cover descending speed too fast, simultaneously, because the elastic coefficient of first elastic component and second elastic component is different, can further reduce the acceleration that the upper cover descends, avoids the too fast clamp injury operator of upper cover speed.
Description
Technical Field
The invention relates to the technical field of washing machines, in particular to an upper cover damper and a washing machine.
Background
The washing machine is a cleaning appliance which can convert electric energy into mechanical energy to wash clothes, and along with the improvement of living standard, people have higher and higher requirements on the washing machine, especially on the aspect of safety.
Among the prior art, impeller washing machine is provided with articulated seat including the box that has the input mouth and articulating the upper cover at the box top on the box, the upper cover articulates on articulated seat to open or close the input mouth.
However, the existing washing machine has the problem that the upper cover descends too fast to hurt people in the closing process.
Disclosure of Invention
The invention provides an upper cover damper and a washing machine, which aim to solve the problem that personnel are easily injured due to the fact that the upper cover is too fast to descend in the prior art.
The present invention provides an upper cover damper, comprising: the hinge base is provided with a hinge pin and a sleeve; one end of the pin shaft extends into the sleeve; and a sliding block and an elastic piece are arranged in the sleeve; the sliding block is connected with the pin shaft; the elastic piece at least comprises a first elastic piece and a second elastic piece with different elastic coefficients, one end of the first elastic piece is abutted against the sliding block, the other end of the first elastic piece is connected with one end of the second elastic piece, and the other end of the second elastic piece is abutted against the bottom wall of the sleeve; the pin shaft can rotate relative to the sleeve to drive the sliding block to move relative to the sleeve along the axial direction of the sleeve, so that the compression amount of the elastic part is changed.
The upper cover damper as described above, wherein the elastic coefficient of the first elastic member is larger than the elastic coefficient of the second elastic member; the length of the first elastic piece along the axial direction of the sleeve is greater than that of the second elastic piece along the axial direction of the sleeve; or the elastic coefficient of the first elastic member is smaller than that of the second elastic member; the length of the first elastic piece along the axial direction of the sleeve is smaller than that of the second elastic piece along the axial direction of the sleeve.
The upper cover damper is characterized in that one side of the sliding block, which is close to the bottom wall, is provided with a first positioning column, the first elastic piece is sleeved outside the first positioning column, the bottom wall is provided with a second positioning column, and the second elastic piece is sleeved outside the second positioning column; and in the process that the sliding block moves relative to the sleeve along the axial direction of the sleeve, a gap is always reserved between the first positioning column and the second positioning column.
The upper cover damper as described above, wherein one end of the pin near the bottom wall has a first mating surface, and the first mating surface includes a first inclined surface; one end of the sliding block, which is far away from the elastic piece, is provided with a second inclined surface matched with the first inclined surface; the inner surface of the sleeve is provided with a sliding groove extending along the direction parallel to the axis of the sleeve, and the sliding block is provided with a guide rib arranged on the sliding groove in a sliding manner; when the pin shaft and the sleeve rotate relatively, the first inclined surface and the second inclined surface rotate relatively, so that the guide rib of the sliding block is arranged in the sliding groove in a sliding mode.
The upper cover damper as described above, wherein the first mating surface further includes a first plane connected to one end of the first inclined surface close to the bottom wall, the first plane is perpendicular to the axis of the pin shaft, and the first plane is transitionally connected to the first inclined surface with a smooth curved surface.
The upper cover damper is characterized in that the number of the first matching surfaces is multiple, and the multiple first matching surfaces are arranged at intervals along the circumferential direction of the pin shaft.
The upper cover damper is characterized in that chamfers are arranged at two ends of the guide rib, a plane perpendicular to the extending direction of the guide rib is a cross section, and the cross section area of the guide rib is smaller than that of the sliding groove.
The upper cover damper is characterized in that one end of the sliding block, which is far away from the elastic piece, is provided with an accommodating cavity, and lubricating liquid is arranged in the accommodating cavity; the pin shaft is also provided with a protruding section inserted into the accommodating cavity, the pin shaft is provided with a central through hole extending along the axial direction of the pin shaft, and the central through hole also penetrates through the protruding section; the protruding section is provided with a first through hole perpendicular to the central through hole, one end of the pin shaft protruding out of the sleeve is provided with a second through hole perpendicular to the central through hole, and the first through hole and the second through hole are respectively communicated with the central through hole.
The upper cover damper is characterized in that the outer surface of the sleeve is provided with a vertical plate, the vertical plate is provided with at least one through hole for being in threaded connection with the upper cover, and the edge of the vertical plate is provided with a transition chamfer.
The invention provides a washing machine which comprises an upper cover, a box body and an upper cover damper, wherein a hinged seat is arranged on the box body, and the upper cover damper is connected between the hinged seat and the upper cover.
The upper cover damper and the washing machine provided by the invention are characterized in that a pin shaft connected with a hinged seat and a sleeve connected with an upper cover are arranged; one end of the pin shaft extends into the sleeve; and a sliding block and an elastic piece are arranged in the sleeve; the sliding block is connected with the pin shaft; the elastic piece at least comprises a first elastic piece and a second elastic piece with different elastic coefficients, one end of the first elastic piece is abutted against the sliding block, the other end of the first elastic piece is connected with one end of the second elastic piece, and the other end of the second elastic piece is abutted against the bottom wall of the sleeve; the pin shaft can rotate relative to the sleeve to drive the sliding block to move relative to the sleeve along the axial direction of the sleeve, so that the compression amount of the elastic part is changed. Make the upper cover at the in-process that descends, the elastic component can provide the resistance, avoids the upper cover falling speed too fast, simultaneously, because the elastic coefficient of first elastic component and second elastic component is different, can adjust the elastic coefficient of the whole elastic component of upper cover at the in-process that descends for the elastic coefficient increase, the upper cover attenuator can provide bigger resistance, further reduces the acceleration that the upper cover descends, avoids the too fast operator that presss from both sides of upper cover speed.
Drawings
The following detailed description of the present invention is provided in conjunction with the accompanying drawings, and it is to be understood that the detailed description set forth herein is merely illustrative and explanatory of the present invention and is not restrictive of the invention as claimed below.
FIG. 1 is a cross-sectional view of an upper cover damper in an embodiment of the present invention;
FIG. 2 is a schematic view of the sleeve of FIG. 1;
FIG. 3 is a schematic structural view of the pin shaft of FIG. 1;
fig. 4 is a schematic structural diagram of the slider in fig. 1.
Description of reference numerals:
100: a sleeve;
110: a bottom wall;
120: a second positioning column;
130: a chute;
140: a vertical plate;
150: a through hole;
160: transition chamfering;
200: a pin shaft;
210: a first mating surface;
211: a first inclined surface;
212: a first plane;
213: smoothing the curved surface;
220: a protruding section;
230: a central through hole;
240: a first through hole;
250: a second through hole;
300: an elastic member;
310: a first elastic member;
320: a second elastic member;
400: a slider;
410: a first positioning post;
420: a guide rib;
421: chamfering;
430: an accommodating chamber;
440: a second inclined surface;
A. b: and (6) erecting.
Detailed Description
The following detailed description of the present invention is provided in conjunction with the accompanying drawings, and it is to be understood that the detailed description set forth herein is merely illustrative and explanatory of the present invention and is not restrictive of the invention as claimed below.
FIG. 1 is a cross-sectional view of an upper cover damper in an embodiment of the present invention; FIG. 2 is a schematic view of the sleeve of FIG. 1; FIG. 3 is a schematic structural view of the pin shaft of FIG. 1; fig. 4 is a schematic structural diagram of the slider in fig. 1.
Referring to fig. 1 to 4, the present embodiment provides an upper cover damper, including: a pin shaft 200 for connecting with the hinge base and a sleeve 100 for connecting with the upper cover; one end of the pin 200 extends into the sleeve 100; and the sliding block 400 and the elastic member 300 are arranged in the sleeve 100; the slider 400 is connected with the pin 200; the elastic member 300 includes at least a first elastic member 310 and a second elastic member 320 having different elastic coefficients, one end of the first elastic member 310 abuts against the slider 400, the other end of the first elastic member 310 is connected to one end of the second elastic member 320, and the other end of the second elastic member 320 abuts against the bottom wall 110 of the sleeve 100; the pin 200 can rotate relative to the sleeve 100 to drive the slider 400 to move relative to the sleeve 100 along the axial direction of the sleeve 100, so as to change the compression amount of the elastic member 300.
In particular, the upper cover damper may be used in a washing machine, particularly a pulsator washing machine, which may include a cabinet having a laundry input port at a top thereof to input laundry and a hinge base to which the upper cover is mounted, and the upper cover may be hinged on the hinge base to cover or open the laundry input port. The upper cover damper may be installed between the case and the upper cover. The upper cover damper may include a pin 200, a sleeve 100, a slider 400, and an elastic member 300.
The sleeve 100 may have a cylindrical sidewall and a bottom wall 110 connected to one end of the sidewall, the sidewall and the bottom wall 110 enclosing an accommodation space with one end open. The sleeve 100 may be connected to the upper cover by conventional connection means, such as screwing, clipping, etc.
The pin 200 may be attached to a hinge base, which may be a cylindrical structure. One end of the pin 200 may be connected to the hinge base, and the other end of the pin 200 may extend into the sleeve 100 through the opening of the sleeve 100.
The sliding block 400 and the elastic element 300 are both arranged in the sleeve 100, the sliding block 400 can be connected with the pin shaft 200, and the elastic element 300 can abut between the sliding block 400 and the bottom wall 110; the elastic member 300 may include a first elastic member 310 and a second elastic member 320, which may be connected in series, i.e., the first elastic member 310 and the second elastic member 320 are sequentially disposed from the slider 400 to the bottom wall 110. Both the first elastic member 310 and the second elastic member 320 may be a coil spring or an elastic body made of an elastic material. Taking a spring as an example, the first elastic member 310 and the second elastic member 320 may be different segments of the same coil spring, or both may be formed by connecting two coil springs. When the elastic member 300 is formed by splicing, one end of the first elastic member 310 close to the second elastic member 320 has a first abutting surface, one end of the second elastic member 320 close to the first elastic member 310 has a second abutting surface, and the first abutting surface and the second abutting surface have the same shape, so that the effective connection between the first abutting surface and the second abutting surface can be ensured.
The first elastic member 310 and the second elastic member 320 have different elastic coefficients, and the larger the elastic coefficient is, the smaller the amount of deformation of the spring is, in the case where the external force is the same.
When the upper cover is in the descending process, the sleeve 100 can rotate relative to the pin shaft 200 along with the upper cover 100, so that the sliding block is driven to extrude the elastic part 300, the resistance of the descending process of the upper cover 100 is increased, and the speed of the upper cover is prevented from being too high. In a possible embodiment, the axis of the pin 200 may coincide with the rotation axis of the upper cover, the pin 200 may be slidably disposed on the hinge base along the axis direction, and one end of the pin 200 may be screwed into the sleeve 100. When the upper cover rotates and descends, the sleeve 100 rotates relative to the pin shaft 200, and under the effect of threaded connection, the pin shaft 200 can be driven to move along the axis direction, so that the sliding block in the sleeve 100 is pushed to enable the sliding block to compress the elastic piece 300, and resistance is provided for the descending of the upper cover 100.
It can be understood that in the present embodiment, the elastic coefficients and the lengths of the first elastic member 310 and the elastic member 320 can be adjusted, so as to change the resistance in the process of descending the upper cover, so that the resistance becomes larger, so as to reduce the descending acceleration thereof, and avoid the excessive increase of the speed of the upper cover.
For example, in one possible implementation, the lowering of the upper cover may include a first half of the stroke during which the first elastic member 310 and the second elastic member 320 may be compressed and deformed by an external force, and a second half of the stroke during which the first half and the second half provide damping. While one of the first and second elastic members 310 and 320 may reach a maximum compression amount during the latter half of the lowering of the upper cover, i.e., one of them may not be deformed any more, the whole latter half may rely on the other of the first and second elastic members 310 and 320 to provide damping.
It can be understood that the acceleration is always a fixed positive value and the speed is faster and faster in the descending process of the upper cover due to the action of gravity, and when the angle between the upper cover and the box body is within 10, the speed is fast, and operators are easily injured by clamping. However, in the embodiment of the present application, since the first elastic member 310 and the second elastic member 320 are in a series structure, the elastic coefficient of the overall elastic member 300 may be smaller than the elastic coefficient of the first elastic member 310 and smaller than the elastic coefficient of the second elastic member 320, that is, during the first half of the descending process of the upper cover, the entire elastic member 300 providing damping is more easily compressed than the first elastic member 310 or the second elastic member 320 providing damping during the second half of the descending process of the upper cover, the upper cover receives a larger resistance during the second half of the descending process of the upper cover, the acceleration may be reduced, the speed increase is slower, the descending of the upper cover is more gradual, and the operator is not easily injured by the upper cover. In addition, in some cases, the acceleration is reduced to a negative value, and the effect of deceleration can be achieved, so that the operator is further prevented from being injured by clamping.
Preferably, when the elastic coefficient of the first elastic member 310 is greater than that of the second elastic member 320; the length of the first elastic member 310 in the axial direction of the sleeve 100 is greater than the length of the second elastic member 320 in the axial direction of the sleeve 100;
specifically, during the first half of the descending process of the upper cover, the first elastic member 310 and the second elastic member 320 may be compressed and deformed by an external force at the same time, and since the length of the second elastic member 320 is smaller, it reaches the maximum compression amount more quickly; in the second half process, the compression amount of the second elastic member 320 is unchanged, and the first elastic member 310 with a larger elastic coefficient is continuously compressed, so that in the whole descending stroke of the upper cover, the time for the first elastic member 310 to provide damping is longer, the resistance in the second half process is larger, the acceleration of the upper cover is reduced more obviously, and an operator is less prone to being injured by clamping.
In addition, in another embodiment, the elastic coefficient of the first elastic member 310 is smaller than that of the second elastic member 320; the length of the first elastic member 310 in the axial direction of the sleeve 100 is smaller than the length of the second elastic member 320 in the axial direction of the sleeve 100. That is, in the above embodiment, the first elastic member 310 and the second elastic member 320 have a larger elastic coefficient and abut on the slider 400, while in the present embodiment, the first elastic member 310 and the second elastic member 320 have a smaller elastic coefficient and abut on the slider 400, which is not limited in this application.
To sum up, in the in-process that descends as the upper cover, sleeve 100 can follow upper cover 100 and make round pin axle 200 rotate relatively, thereby drive slider 400 extrusion elastic component 300, elastic component 300 can provide the resistance, avoid the upper cover falling speed too fast, and simultaneously, because the elastic coefficient of first elastic component and second elastic component is different, can adjust the elastic coefficient of the whole elastic component of upper cover in the in-process that descends, make the elastic coefficient increase, the upper cover attenuator can provide bigger resistance, further reduce the acceleration that the upper cover descends, avoid the too fast operator that presss from both sides of upper cover speed.
Of course, in some possible embodiments, the elastic member 300 may further include other parts besides the first elastic member 310 and the second elastic member 320, for example, a third elastic member or a fourth elastic member with different elastic coefficients may be included, which may be set according to actual situations. Preferably, the elastic member 300 may be integrally formed, and the elastic coefficient thereof may be gradually changed, so that the increase of the descending resistance of the upper cover is more gradual, and the upper cover may be controlled to be always at a suitable descending speed, thereby ensuring that the upper cover does not hurt the operator.
In order to facilitate the installation of the first elastic member 310 and the second elastic member 320, a first positioning column 410 is disposed on one side of the slider 400 close to the bottom wall 110, the first elastic member 310 is sleeved outside the first positioning column 410, the bottom wall 110 is provided with a second positioning column 120, and the second elastic member 320 is sleeved outside the second positioning column 120; and a gap is always formed between the first positioning column 410 and the second positioning column 120 in the process that the sliding block 400 moves relative to the sleeve 100 along the axial direction of the sleeve 100.
Specifically, the first positioning column 410 and the second positioning column 120 may be coaxially disposed, and preferably, an annular groove may be further disposed on the slider, and the first positioning column 410 may be connected to a bottom of the annular groove, so that a portion of the first elastic member 310 may be located in the annular groove, and it is further ensured that the splicing positions of the first elastic member 310 and the second elastic member 320 may be aligned, and the two may form an effective series connection.
In addition, it can be understood that the compression amount of the elastic member 300 is continuously increased and the distance between the slider 400 and the bottom wall 110 is continuously decreased during the descending process of the upper cover, and the distance between the slider 400 and the bottom wall 110 is continuously increased during the ascending and opening process of the upper cover. The maximum distance between the slider 400 and the bottom wall 110 may be less than the uncompressed length of the resilient member 300 throughout the opening or closing of the cover, so that the resilient member 300 is always compressed and the cover is guaranteed to stay in this position when it is raised to the open limit. For example, when the compression amount of the elastic member 300 is changed to 10mm during the rotation of the upper cover, the maximum gap between the first positioning column 410 and the second positioning column 120 should be greater than 10mm +2mm to ensure that the first positioning column 410 and the second positioning column 120 do not contact each other.
As another way for the pin 200 to push the slider 400, one end of the pin 200 near the bottom wall 110 has a first mating surface 210, and the first mating surface 210 includes a first inclined surface 211; one end of the sliding block 400, which is far away from the elastic element 300, is provided with a second inclined surface 440 matched with the first inclined surface 211; the inner surface of the sleeve 100 is provided with a sliding groove 130 extending along the direction parallel to the axial line of the sleeve 100, and the sliding block 400 is provided with a guide rib 420 arranged on the sliding groove 130 in a sliding manner; when the pin 200 and the sleeve 100 rotate relatively, the first inclined surface 211 and the second inclined surface 440 rotate relatively, so that the guide rib 420 of the slider 400 is slidably disposed in the sliding groove 130.
Specifically, the pin shaft 200 may be fixed to the first inclined surface 211, and the first inclined surface 211 may be a surface having a certain angle with a radial plane of the pin shaft 200, where the radial plane is a plane perpendicular to an axis of the pin shaft 200. The first inclined surface 211 may have various structures, for example, it may be an inclined plane or a spiral surface with the axis of the pin 200 as the axis, the second inclined surface 440 may have the same shape as the first inclined surface 211, and the lengths of the two inclined surfaces along the extending directions may be equal or different, and the first mating surface 210 and the second inclined surface 440 may contact each other under the abutting of the elastic member 300.
In addition, the inner surface of the sleeve 100 may be provided with a sliding groove 130, and the outer surface of the sliding block may be provided with a guiding rib 420 slidably disposed on the sliding groove 130, so that the sleeve 100 and the sliding block 400 can only move in a direction parallel to the axis of the sleeve 100, but cannot rotate relatively. The number of the sliding grooves 130 may be plural, and they may be arranged at intervals in the circumferential direction. The length of the sliding slot 130 should be greater than the length of the sliding block and the maximum compression amount of the elastic member 300 in the whole process, so that the sliding block 400 can always move along the axial direction thereof relative to the sleeve 100.
When the sleeve 100 rotates relative to the pin 200, the second inclined surface 440 rotates relative to the first inclined surface 211 due to the limitation of the sliding groove 130, and meanwhile, due to the inclined arrangement of the first inclined surface 211, the second inclined surface 440 moves along the axial direction of the sleeve 100 during the rotation relative thereto, so that the compression amount of the elastic member 300 is changed, and the effect of compressing the elastic member 300 is achieved.
As a preferred mode of the first mating surface 210, the first mating surface 210 further includes a first plane 212 connected to an end of the first inclined surface 211 close to the bottom wall 110, the first plane 212 is perpendicular to the axis of the pin 200, and the first plane 212 and the first inclined surface 211 are transitionally connected by a smooth curved surface 213.
Wherein, the first inclined surface 211 is obliquely arranged, and there is necessarily an end close to the bottom wall 110 and an end far from the bottom wall 110; the first plane 212 is connected to one end of the first inclined surface 211 close to the bottom wall 110, and during the process of lowering the upper cover, the second inclined surface 440 may rotate relative to the first inclined surface 211 first, so that the second inclined surface 440 moves towards the direction close to the bottom wall 110, and when it moves away from the first inclined surface 211 and contacts the first plane 212, the compression amount of the elastic member 300 does not change. In addition, the first inclined surface 211 and the second inclined surface 440 may transition with a smooth curved surface 213 such as a rounded corner, so that the speed change is more gradual during the cover descending process.
On the contrary, when the upper cover is opened, the slider 400 moves along the first plane 212 first and then passes through the smooth curved surface 213, so that the second inclined surface 440 contacts with the first inclined surface 211, and at this time, the first inclined surface 211 can play a role of assisting power, so that the upper cover is opened more easily, and finally the upper cover is suspended.
In one embodiment, the number of the first engagement surfaces 210 is multiple, and the multiple first engagement surfaces 210 are spaced along the circumference of the pin 200, so that the transmission between the pin 200 and the slider 400 is smooth.
For example, the number of the first mating surfaces 210 may be 2, and the angle of each first mating surface 210 extending in the radial direction of the pin shaft 200 may be 180 degrees, wherein the first inclined surface 211 may occupy only 135 degrees, and the first plane 212 may occupy 45 degrees. There may be two second inclined surfaces 440, and each second inclined surface 440 may contact one first mating surface 210. The angle of the second inclined surface 440 extending in the radial direction of the pin 200 may also be 135 degrees, and the moving distance of the slider 400 in the axial direction thereof during the rotation of the upper cover may be 8 mm.
Of course, at the maximum position where the upper cover is opened, the vertical surface a and the vertical surface B may not coincide with each other, for example, the vertical surface a and the vertical surface B may have an included angle of 45 degrees along the circumferential direction of the pin 200, so as to avoid that the upper cover cannot be completely opened, and the included angle may be set according to actual conditions.
Further, the both ends of direction muscle 420 are provided with chamfer 421, and the plane along the perpendicular to direction of extension of direction muscle 420 is the cross section, and the cross sectional area of direction muscle 420 is less than the cross sectional area of spout 130, and chamfer 421 can improve the structural strength of direction muscle 420, improves the life-span. The chamfer 421 may be 0.2mm, for example. In this embodiment, round pin axle 200 and sleeve 100 can interference fit play certain dust seal's effect, and the cross sectional area of direction muscle 420 is less than the cross sectional area of spout 130, can be so that both clearance fit, avoid rotating the in-process at the upper cover, the too big influence upper cover rotation of receiving space gas pressure of sleeve 100, the upper cover rotates more in the same direction as smooth, has solved the retardant sense of upper cover attenuator operation process, has improved user experience. For example, the clearance may have a fit tolerance of 0.5 mm.
In another embodiment, an end of the slider 400 facing away from the elastic member 300 is formed with a receiving cavity 430, and the receiving cavity 430 is filled with a lubricating fluid; the pin shaft 200 is further provided with a protruding section 220 inserted into the accommodating cavity 430, the pin shaft 200 is provided with a central through hole 230 extending along the axial direction of the pin shaft 200, and the central through hole 230 further penetrates through the protruding section 220; the protruding section 220 is provided with a first through hole 240 perpendicular to the central through hole 230, one end of the pin 200 protruding out of the sleeve 100 is provided with a second through hole 250 perpendicular to the central through hole 230, and the first through hole 240 and the second through hole 250 are respectively communicated with the central through hole 230. So that the lubricating liquid can enter the first through hole 240 along the central through hole 230 to lubricate the connection position of the hinge pin 200 and the slider 400, and at the same time, the lubricating liquid can also enter the second through hole 250, and the second through hole 250 can be located at the connection point of the hinge pin 200 and the hinge base to lubricate the connection position of the hinge base and the hinge pin 200. Wherein, the protruding section 220 may protrude from the first mating face 210.
As a connection mode of the sleeve 100 and the upper cover, an upright plate 140 is disposed on an outer surface of the sleeve 100, at least one through hole 150 for screwing with the upper cover is disposed on the upright plate 140, and a transition chamfer 160 is disposed on an edge of the upright plate 140.
Wherein, the vertical plate 140 extends along the axial direction of the sleeve 100, and at least one through hole 150 may be disposed thereon, so as to facilitate the installation of the sleeve 100.
The edge of riser 140 facing away from the outer surface of sleeve 100 may be provided with transition chamfer 160, wherein one transition chamfer 160 may be larger than the other transition chamfer 160, a larger transition chamfer 160 may improve the mounting strength, and a smaller transition chamfer 160 may avoid stress concentration.
The embodiment provides a washing machine, including upper cover, box and upper cover attenuator, be provided with articulated seat on the box, the upper cover attenuator is connected between articulated seat and upper cover.
Among them, the washing machine may be various types, and particularly, the pulsator washing machine may include a cabinet having a laundry input port at the top thereof for inputting laundry and a hinge base for mounting the upper cover, and the upper cover may be hinged on the hinge base to cover or open the laundry input port. The upper cover damper may be installed between the case and the upper cover. The structure and function of the upper cover damper may be the same as those of the above embodiments, and specific reference may be made to the above embodiments, which are not described herein again. And the upper cover, the box body and the hinge seat can be common structures in the prior art.
When the upper cover is lowered, the sleeve 100 can rotate relative to the pin 200 along with the upper cover 100, thereby driving the slider 400 to squeeze the elastic member 300.
In this embodiment, the elastic component can provide the resistance, avoids the upper cover descending speed too fast, simultaneously, because the elastic coefficient of first elastic component and second elastic component is different, can adjust the elastic coefficient of the whole elastic component of upper cover in the in-process that descends for the elastic coefficient increase, the upper cover attenuator can provide bigger resistance, further reduces the acceleration that the upper cover descends, avoids the too fast operator that presss from both sides of upper cover speed.
It should be noted that the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description above, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A top cap damper, comprising: the hinge base is provided with a hinge pin and a sleeve;
one end of the pin shaft extends into the sleeve; and a sliding block and an elastic piece are arranged in the sleeve; the sliding block is connected with the pin shaft;
the elastic piece at least comprises a first elastic piece and a second elastic piece with different elastic coefficients, one end of the first elastic piece is abutted against the sliding block, the other end of the first elastic piece is connected with one end of the second elastic piece, and the other end of the second elastic piece is abutted against the bottom wall of the sleeve;
the pin shaft can rotate relative to the sleeve to drive the sliding block to move relative to the sleeve along the axial direction of the sleeve, so that the compression amount of the elastic part is changed.
2. The upper cover damper according to claim 1, wherein an elastic coefficient of the first elastic member is larger than an elastic coefficient of the second elastic member; the length of the first elastic piece along the axial direction of the sleeve is greater than that of the second elastic piece along the axial direction of the sleeve;
or the elastic coefficient of the first elastic member is smaller than that of the second elastic member; the length of the first elastic piece along the axial direction of the sleeve is smaller than that of the second elastic piece along the axial direction of the sleeve.
3. The upper cover damper as recited in claim 1, wherein a first positioning post is disposed on a side of the slider adjacent to the bottom wall, the first elastic member is sleeved outside the first positioning post, the bottom wall is disposed with a second positioning post, and the second elastic member is sleeved outside the second positioning post;
and in the process that the sliding block moves relative to the sleeve along the axial direction of the sleeve, a gap is always reserved between the first positioning column and the second positioning column.
4. The upper cover damper as recited in any one of claims 1 to 3, wherein an end of the pin near the bottom wall has a first mating surface, the first mating surface including a first inclined surface; one end of the sliding block, which is far away from the elastic piece, is provided with a second inclined surface matched with the first inclined surface;
the inner surface of the sleeve is provided with a sliding groove extending along the direction parallel to the axis of the sleeve, and the sliding block is provided with a guide rib arranged on the sliding groove in a sliding manner;
when the pin shaft and the sleeve rotate relatively, the first inclined surface and the second inclined surface rotate relatively, so that the guide rib of the sliding block is arranged in the sliding groove in a sliding mode.
5. The upper cover damper as recited in claim 4, wherein the first mating surface further comprises a first flat surface connected to an end of the first inclined surface adjacent to the bottom wall, the first flat surface being perpendicular to the axis of the pin, and the first flat surface and the first inclined surface being connected in a smooth curved transition.
6. The upper cover damper according to claim 4, wherein the number of the first engagement surfaces is plural, and the plural first engagement surfaces are arranged at intervals in a circumferential direction of the pin shaft.
7. The upper cover damper as recited in claim 4,
the both ends of direction muscle are provided with the chamfer, along the perpendicular to the plane of direction muscle extending direction is the cross section, the cross sectional area of direction muscle is less than the cross sectional area of spout.
8. The upper cover damper according to any one of claims 1 to 3,
an accommodating cavity is formed at one end of the sliding block, which is far away from the elastic part, and lubricating liquid is arranged in the accommodating cavity;
the pin shaft is also provided with a protruding section inserted into the accommodating cavity, the pin shaft is provided with a central through hole extending along the axial direction of the pin shaft, and the central through hole also penetrates through the protruding section;
the protruding section is provided with a first through hole perpendicular to the central through hole, one end of the pin shaft protruding out of the sleeve is provided with a second through hole perpendicular to the central through hole, and the first through hole and the second through hole are respectively communicated with the central through hole.
9. The upper cover damper as recited in claim 8, wherein an upright plate is disposed on an outer surface of the sleeve, at least one through hole for screwing with the upper cover is disposed on the upright plate, and a transition chamfer is disposed on an edge of the upright plate.
10. A washing machine comprising a top cover, a cabinet and the top cover damper as claimed in any one of claims 1 to 9, wherein the cabinet is provided with a hinge seat, and the top cover damper is connected between the hinge seat and the top cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910847337.9A CN112458706A (en) | 2019-09-09 | 2019-09-09 | Upper cover damper and washing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910847337.9A CN112458706A (en) | 2019-09-09 | 2019-09-09 | Upper cover damper and washing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112458706A true CN112458706A (en) | 2021-03-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910847337.9A Pending CN112458706A (en) | 2019-09-09 | 2019-09-09 | Upper cover damper and washing machine |
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| Country | Link |
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| CN (1) | CN112458706A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114183619A (en) * | 2021-12-03 | 2022-03-15 | 上汽通用五菱汽车股份有限公司 | Noise reduction structure for reducing fuel pulsation excitation force based on shock absorber |
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