CN110499979B - Door shaft assembly and washing machine - Google Patents

Door shaft assembly and washing machine Download PDF

Info

Publication number
CN110499979B
CN110499979B CN201810465778.8A CN201810465778A CN110499979B CN 110499979 B CN110499979 B CN 110499979B CN 201810465778 A CN201810465778 A CN 201810465778A CN 110499979 B CN110499979 B CN 110499979B
Authority
CN
China
Prior art keywords
shaft core
base
friction plate
door
shaft
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201810465778.8A
Other languages
Chinese (zh)
Other versions
CN110499979A (en
Inventor
李丹丹
姚加旺
卢绪珍
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuxi Little Swan Electric Co Ltd
Original Assignee
Wuxi Little Swan Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wuxi Little Swan Electric Co Ltd filed Critical Wuxi Little Swan Electric Co Ltd
Priority to CN201810465778.8A priority Critical patent/CN110499979B/en
Publication of CN110499979A publication Critical patent/CN110499979A/en
Application granted granted Critical
Publication of CN110499979B publication Critical patent/CN110499979B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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
    • 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
    • E05D11/08—Friction devices between relatively-movable hinge parts
    • E05D11/087—Friction devices between relatively-movable hinge parts with substantially axial friction, e.g. friction disks
    • 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
    • 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

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 a door shaft assembly and a washing machine, wherein the door shaft assembly is used for the washing machine and comprises: the base is provided with a through hole; the shaft core is rotatably arranged in the through hole in a penetrating way, and a connecting part is arranged on the shaft core; the first friction plate is fixed on the base; the second friction plate is sleeved on the shaft core and rotates along with the shaft core, and the friction surface of the first friction plate is attached to the friction surface of the second friction plate; and the elastic assembly is sleeved on the shaft core and is connected with the shaft core and the base to tightly press the first friction plate and the second friction plate, and when the shaft core and the base rotate relatively, the elastic assembly provides torque force for the shaft core and the base. According to the door shaft assembly provided by the invention, when the shaft core rotates relative to the base, the friction surface of the first friction plate and the friction surface of the second friction plate rub to provide a resistance force for the shaft core and the base, the elastic assembly exerts a torsion force between the shaft core and the base to provide another resistance force for the shaft core and the base, and the two resistance forces are superposed to realize a larger damping effect.

Description

Door shaft assembly and washing machine
Technical Field
The invention relates to the technical field of washing machines, in particular to a door shaft assembly and a washing machine.
Background
At present, the impeller type washing machine among the correlation technique, when the user used, the very big noise takes place for the in-process of the direct free fall of the door body to, finally bump with the organism, easily cause the damage of the door body, simultaneously, the falling speed is too fast, causes to press from both sides user's hand when closing the door easily.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art.
To this end, in an embodiment of the first aspect of the present invention, a door spindle assembly is provided, which enables a door body to fall slowly.
In a second aspect of the present invention, a washing machine is provided.
In view of the above, according to a first aspect of the present invention, the present invention provides a door shaft assembly for a washing machine, including: the base is provided with a through hole; the shaft core is rotatably arranged in the through hole in a penetrating way, and a connecting part is arranged on the shaft core; the first friction plate is fixed on the base; the second friction plate is sleeved on the shaft core and rotates along with the shaft core, and the friction surface of the first friction plate is attached to the friction surface of the second friction plate; the elastic component is sleeved on the shaft core and connected with the shaft core and the base to press the first friction plate and the second friction plate tightly, and when the shaft core and the base rotate relatively, the elastic component provides torque force for the shaft core and the base, and the first friction plate and the second friction plate generate sliding friction.
According to the door shaft assembly provided by the invention, the shaft core is inserted into the through hole of the base, the first friction plate and the second friction plate are pressed tightly through the elastic assembly arranged on the shaft core, and then when the shaft core rotates relative to the base, the friction surface of the first friction plate and the friction surface of the second friction plate rub against each other to provide a resistance force for the shaft core and the base, and the elastic assembly exerts a torsion force between the shaft core and the base to provide another resistance force for the shaft core and the base, and the two resistance forces are superposed to realize a larger damping effect. Specifically, after the washing machine is assembled, the shaft core is connected with one of the door body or the machine body, the base is installed on the other of the door body or the machine body, when the door body is closed, the elastic assembly is in a tense state, in the opening process of the door body, the elastic assembly is gradually released, after the door body is completely opened, the elastic assembly is in a relaxed state or a more relaxed state, in the closing process of the door body, the elastic assembly is gradually transited to the tense state from the relaxed state or the more relaxed state, and then the damping between the door body and the machine body is realized by matching with the friction between the first friction plate and the second friction plate, so that the door body is slowly closed, the severe collision between the door body and the machine body caused by the fact that the speed is too fast when the door body falls at a high position is avoided, and the service life and the safety of the washing machine are improved.
In addition, the door shaft assembly in the above embodiment provided by the invention may further have the following additional technical features:
in the above technical solution, preferably, the elastic member includes: the end part blocking piece is arranged on the shaft core and rotates along with the shaft core; the shaft sleeve is sleeved on the shaft core and is positioned between the end part blocking piece and the second friction plate; the torsional spring is sleeved outside the shaft sleeve, one end of the torsional spring arm is connected with the base, and the other end of the torsional spring arm is connected with the end part blocking piece; the limiting piece is arranged on the shaft core, is positioned on one side, deviating from the base, of the end part blocking piece and is used for fixing the installation position of the end part blocking piece.
In this technical scheme, set up the torsional spring on the axle core, the one end torsional spring arm of torsional spring is fixed on the tip separation blade, and other end torsional spring arm is fixed on the base, and the cover barrel casing is established and is located between tip separation blade and the second friction disc on the axle core, and when the axle core rotated, the tip separation blade followed the axle core and rotated, made the torsional spring arm rotation of torsional spring one end, and other end torsional spring arm is fixed on the base, and then made the torsional spring shorten or extend. Specifically, after the washing machine is assembled, the shaft core is connected with one of the door body or the machine body, the base is installed on the other of the door body or the machine body, when the door body is closed, the torsion spring is in a compression state, the door body and the machine body are closed by the weight of the door body, the torsion spring gradually relaxes in the process of opening the door body, the resistance component to the door body is reduced, and further the door body is convenient to open, after the door body is completely opened, the torsion spring is in a relaxation state or a more relaxation state, so that the door body cannot fall back under the action of the torsion spring, in the process of closing the door body, the torsion spring gradually transits from the relaxation state to the compression state, in addition, the torsion force of the torsion spring is gradually increased, the resistance borne by the door body is gradually increased, the process of closing the door body is gradually slowed down, in addition, when the door body just begins to be closed, the two friction plates provide initial damping for the door body, and continuously act on the door body in the process of closing the door body, and then promoted the damping effect to the door body, further realized having avoided because the door body eminence when whereabouts speed too fast, and the violent collision of the door body that leads to and organism, promoted washing machine's life and the technological effect of security to, this elastic component simple structure, the damping effect is reliable.
In any of the above technical solutions, preferably, the elastic assembly further includes: and the elastic sheet is sleeved on the shaft core and positioned between the second friction sheet and the shaft sleeve, one side of the elastic sheet abuts against the shaft sleeve, the other side of the elastic sheet abuts against the second friction sheet, and the elastic sheet is provided with an elastic tilting part.
In the technical scheme, the elastic sheet is arranged between the second friction sheet and the shaft sleeve, the elastic tilting part is abutted against the base or the shaft core, so that the distance between the shaft sleeve and the second friction sheet can be adjusted by adjusting the position of the limiting part, the torsion spring can deform, and the torsion spring arms at the two ends of the torsion spring are respectively fixed with the shaft core and the base, and a certain friction force exists between the first friction sheet and the second friction sheet, so that the torsion spring can have a certain pretightening force which is smaller than the friction force between the two friction sheets, after the torsion spring drives the shaft core to rotate in the pretightening force, the shaft core can rotate relative to the base by a corresponding angle, the first friction sheet and the second friction sheet can not correspondingly rotate, the shaft core can generate a certain rotation amount relative to the base, and the relative state of the connecting part of the shaft core can be changed, the initial angle of the shaft core of the door shaft assembly has certain variable quantity, and the door shaft assembly is convenient to install. The in-process of installing the door-hinge subassembly at the door body and organism promptly, because the restriction of the opening angle of the door body to and factors such as the restriction of installer self condition, for convenient installation, set up certain free variation with the initial angle of the axle core of door-hinge subassembly, avoided because the installation angle of door-hinge subassembly can not change, and lead to the problem of installation difficulty.
In any of the above technical solutions, preferably, the shaft core is a stepped shaft; the axle center includes: the connecting part is arranged on the first step part, and the cross sectional area of the first step part is larger than that of the through hole; the second step part is positioned at one end of the first step part and penetrates through the through hole of the base, and the shaft sleeve is sleeved on the second step part; and the third step part is positioned at one end of the second step part, and the limiting part is fixed on the third step part.
In the technical scheme, the fitting process of the door shaft assembly is simplified through the reasonable design of the shaft core, the assembly difficulty of the door shaft assembly is reduced, the assembly time is saved, and the reliability of the door shaft assembly can be ensured.
In any of the above technical solutions, preferably, the second step portion is provided with a first positioning structure; the end part blocking piece is provided with a second positioning structure matched with the first positioning structure.
In the technical scheme, the first fixing structure is arranged on the second step part, and the second fixing structure is arranged on the end part blocking piece, so that the end part blocking piece can rotate along with the shaft core, and the reliability that the door shaft assembly slows down the rotation speed of the shaft core is ensured.
In any of the above technical solutions, preferably, the method further includes: and the limiting check ring is sleeved on the shaft core and is positioned between the first step part and the base.
In this technical scheme, through set up spacing retaining ring between first step portion and base, reduce the pressure of flexible subassembly to the base to, because the axle core rotates for the base, consequently, can reduce the wearing and tearing of base, make the base can adopt the lower material of cost to make, reduced the manufacturing cost of base.
In any of the above technical solutions, preferably, the end stop is provided with a first mounting hole, and a torsion spring arm at one end of the torsion spring penetrates through the first mounting hole; the first friction plate and the base are respectively provided with a second mounting hole and a third mounting hole, and a torsion spring arm at the other end of the torsion spring is arranged in the second mounting hole and the third mounting hole.
In the technical scheme, the first mounting hole is formed in the end part blocking piece, the torsion spring arm at one end of the torsion spring penetrates through the first mounting hole, the connection between the torsion spring and the end part blocking piece is achieved, the second mounting hole and the third mounting hole are formed in the first friction piece and the base respectively, the torsion spring arm at the other end of the torsion spring is arranged in the second mounting hole and the third mounting hole, the connection between the torsion spring and the base is achieved, the splicing assembly mode is simple, and the assembly time is saved.
In any one of the above technical solutions, preferably, the limiting member is a nut, and the shaft core is provided with a thread adapted to the nut.
In this technical scheme, through setting up the locating part into the nut, with the axle core cooperation, realize the fixed to the end separation blade, the connected mode is reliable to, can adjust the distance between axle sleeve and the second friction disc fast.
In any of the above technical solutions, preferably, the method further includes: the base is arranged on the shell; the housing includes: the base is arranged on the first shell; and the second shell is matched with the first shell.
In this technical scheme, through setting up the base on the casing to protect flexible subassembly axle core etc. by the casing, guarantee the reliability of door axle subassembly work.
According to a second aspect of embodiments of the present invention, there is provided a washing machine comprising: a door spindle assembly as claimed in any one of the preceding claims.
The washing machine provided by the invention comprises the door shaft assembly according to any one of the above technical solutions, so that all the beneficial effects of the door shaft assembly according to any one of the above technical solutions are achieved, and the description is omitted.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 illustrates a schematic structural view of a door spindle assembly provided in accordance with one embodiment of the present invention;
FIG. 2 illustrates a cross-sectional view A-A of the door spindle assembly shown in FIG. 1;
FIG. 3 shows a left side view of the door spindle assembly shown in FIG. 1;
FIG. 4 illustrates a cross-sectional view B-B of the door spindle assembly shown in FIG. 3;
FIG. 5 is a schematic view of a door spindle assembly provided in accordance with another embodiment of the present invention, which does not include a housing and a base;
FIG. 6 shows a front view of the spindle core of the door spindle assembly shown in FIG. 5;
FIG. 7 shows a right side view of the spindle core of the door spindle assembly shown in FIG. 5;
FIG. 8 shows a left side view of the spindle in the door spindle assembly shown in FIG. 5;
FIG. 9 shows an exploded view of the door spindle assembly shown in FIG. 1;
fig. 10 is a schematic diagram illustrating the relationship between the relative rotation angle of the shaft core and the housing and the resistance applied to the shaft core and the housing in the door shaft assembly according to an embodiment of the present invention.
Wherein, the correspondence between the reference numbers and the part names in fig. 1 to 10 is:
1 door spindle assembly, 10 bases, 20 spindle cores, 200 connecting parts, 202 first step parts, 204 second step parts, 206 third step parts, 30 elastic assemblies, 302 end blocking pieces, 304 shaft sleeves, 306 torsion springs, 308 limiting pieces, 42 first friction plates, 44 second friction plates, 50 elastic sheets, 60 limiting retaining rings, 70 shells, 702 first shells and 704 second shells.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
A door spindle assembly provided in accordance with some embodiments of the present invention is described below with reference to fig. 1-9.
As shown in fig. 1 to 9, according to a first embodiment of the present invention, there is provided a door shaft assembly 1 for a washing machine, including: a base 10, wherein a through hole is arranged on the base 10; the shaft core 20 is rotatably arranged in the through hole in a penetrating way, and the shaft core 20 is provided with a connecting part 200; a first friction plate 42 fixed to the base 10; the second friction plate 44 is sleeved on the shaft core 20 and rotates along with the shaft core 20, and the friction surface of the first friction plate 42 is jointed with the friction surface of the second friction plate 44; the elastic element 30 is sleeved on the shaft core 20, connected with the shaft core 20 and the base 10, and presses the first friction plate 42 and the second friction plate 44, and when the shaft core 20 and the base 10 rotate relatively, the elastic element 30 provides torque force for the shaft core 20 and the base 10.
According to the door shaft assembly 1 provided by the invention, the shaft core 20 is inserted into the through hole of the base 10, the elastic assembly 30 arranged on the shaft core 20 is used for pressing the first friction plate 42 and the second friction plate 44, and further when the shaft core 20 rotates relative to the base 10, the friction surface of the first friction plate 42 and the friction surface of the second friction plate 44 rub with each other to provide a resistance force for the shaft core 20 and the base 10, and the elastic assembly 30 exerts a torsion force between the shaft core 20 and the base 10 to provide another resistance force for the shaft core 20 and the base 10, and the two are overlapped to realize a larger damping effect. Specifically, after the washing machine is assembled, the shaft core 20 is connected with one of the door body or the machine body, the base 10 is installed on the other of the door body or the machine body, when the door body is closed, the elastic component 30 is in a tense state, in the opening process of the door body, the elastic component 30 gradually relaxes, after the door body is completely opened, the elastic component 30 is in a relaxed state or a more relaxed state, in the closing process of the door body, the elastic component 30 gradually transits to the tense state from the relaxed state or the more relaxed state, and then the first friction plate 42 and the second friction plate 44 are matched with friction to realize damping between the door body and the machine body, so that the door body is slowly closed, the phenomenon that the door body and the machine body collide violently due to too fast falling speed at the high position of the door body is avoided, and the service life and the safety of the washing machine are improved.
Wherein, preferably, the connecting portion 200 is a flat position disposed on the shaft core 20; the first friction plate 42 and the second friction plate 44 are friction rings.
In one embodiment of the present invention, preferably, as shown in fig. 1, 2, 5 and 9, the elastic member 30 includes: an end stop piece 302 arranged on the shaft core 20 and rotating along with the shaft core 20; the shaft sleeve 304 is sleeved on the shaft core 20 and is positioned between the end part blocking piece 302 and the second friction plate 44; the torsion spring 306 is sleeved outside the shaft sleeve 304, one end of the torsion spring arm is connected with the base 10, and the other end of the torsion spring arm is connected with the end part blocking piece 302; and the limiting piece 308 is arranged on the shaft core 20 and located on one side of the end blocking piece 302, which is away from the base 10, and is used for fixing the installation position of the end blocking piece 302.
In this embodiment, a torsion spring 306 is disposed on the shaft core 20, one end of the torsion spring 306 is fixed to the end stop piece 302, the other end of the torsion spring 306 is fixed to the base 10, and a sleeve is sleeved on the shaft core 20 between the end stop piece 302 and the second friction plate 44, when the shaft core 20 rotates, the end stop piece 302 rotates along with the shaft core 20, so that the torsion spring arm at one end of the torsion spring 306 rotates, and the other end of the torsion spring is fixed to the base 10, so that the torsion spring 306 shortens or extends. Specifically, after the washing machine is assembled, the shaft core 20 is connected with one of the door body or the machine body, the base 10 is installed on the other of the door body or the machine body, when the door body is closed, the torsion spring 306 is in a compression state, the door body and the machine body are closed by the weight of the door body, in the process of opening the door body, the torsion spring 306 gradually restores to the original length, the resistance component to the door body is reduced, and further the door body is convenient to open, after the door body is completely opened, the torsion spring 306 is in the original length state or the state close to the original length, so that the door body cannot fall back under the action of the torsion spring 306, in the process of closing the door body, the torsion spring 306 gradually transits from the original length state or the state close to the compression state, in the process, the torsion force of the torsion spring 306 gradually increases, the resistance borne by the door body gradually increases, the closing of the door body is more and less slow, and when the door body just begins to close, the two friction plates provide initial damping for the door body, and the in-process that the door body is closed continuously acts on the door body, and then the damping effect to the door body has been promoted, further realized having avoided because the door body eminence when whereabouts the speed too fast, and the violent collision of the door body that leads to and organism, promoted the technical effect of washing machine's life and security to, this elastic component 30 simple structure, the damping effect is reliable.
Further, as shown in fig. 2, 4, 5 and 9, the limiting member 308 is a nut, and the shaft core 20 is provided with a thread adapted to the nut; or a pin piece, a pin hole is arranged on the shaft core 20, and the pin piece is inserted into the pin hole to realize limiting.
In an embodiment, the torsion spring 306 can rotate forward or backward according to the opening direction of the door of the washing machine.
In one embodiment of the present invention, preferably, as shown in fig. 2 and 9, the elastic assembly 30 further includes: and the elastic sheet 50 is sleeved on the shaft core 20 and is positioned between the second friction plate 44 and the shaft sleeve 304, one side of the elastic sheet 50 is abutted against the shaft sleeve 304, the other side of the elastic sheet is abutted against the second friction plate 44, and the elastic sheet 50 is provided with an elastic tilting part.
In this embodiment, the deformation of the elastic sheet 50 is adjusted by adjusting the screwing depth of the nut, so as to control the free rotation angle of the shaft core 20 relative to the base 10, the elastic sheet 50 is disposed between the second friction sheet 44 and the shaft sleeve 304, so as to adjust the distance between the shaft sleeve 304 and the second friction sheet 44 by adjusting the position of the limiting member 308, and the torsion spring 306 can deform, and since the torsion spring arms at the two ends of the torsion spring 306 are respectively fixed with the shaft core 20 and the base 10, and a certain friction force exists between the first friction sheet 42 and the second friction sheet 44, the torsion spring 306 can have a certain pre-tightening force, after the torsion spring 306 drives the shaft core 20 to rotate within the pre-tightening force, the shaft core 20 can rotate relative to the base 10 by a corresponding angle, and the first friction sheet 42 and the second friction sheet 44 cannot rotate correspondingly, so that the shaft core 20 can generate a certain rotation amount relative to the base 10, the relative state of the connecting part 200 of the shaft core 20 can be changed, certain variable quantity exists in the initial angle of the shaft core 20 of the door shaft assembly 1, and the door shaft assembly 1 is convenient to install. In the process of installing door-hinge subassembly 1 at the door body and organism promptly, because the restriction of the opening angle of the door body to and factors such as the restriction of installer self condition, for the installation of convenience, set up certain free variation with the initial angle of the axle core 20 of door-hinge subassembly 1, avoided because the installation angle of door-hinge subassembly 1 can not change, and lead to the problem of installation difficulty.
Wherein, when the friction force between the first friction plate 42 and the second friction plate 44 is smaller than the torsion force of the torsion spring 306, the shaft core 20 can realize the corresponding angle change.
In a specific embodiment, as shown in fig. 2 and 9, preferably, the elastic sheet 50 is annular and is sleeved on the shaft core 20, and an inner ring of the elastic sheet 50 is provided with a raised portion with elasticity, or a bowl-shaped elastic sheet 50 is adopted and is sleeved on the shaft core 20.
In one embodiment of the present invention, preferably, as shown in fig. 2, and fig. 5 to 9, the shaft core 20 is a stepped shaft; the shaft core 20 includes: a first step portion 202 on which the connection portion 200 is provided, the first step portion 202 having a cross-sectional area larger than that of the through-hole; a second step portion 204, which is positioned at one end of the first step portion 202, and is inserted into the base 10; the third step portion 206 is located at one end of the second step portion 204, and the shaft sleeve 304 is sleeved on the third step portion 206.
In this embodiment, through the rationalization design to the axle center, simplify the accessory process of door axle subassembly 1, reduce the assembly degree of difficulty of door axle subassembly 1, save the assemble duration to can guarantee the reliability of door axle subassembly 1.
In one embodiment of the present invention, preferably, as shown in fig. 6 to 9, the second step portion 204 is provided with a first positioning structure thereon; the end portion blocking piece 302 is provided with a second positioning structure matched with the first positioning structure.
In this embodiment, the first fixing structure is disposed on the second step portion 204, and the second fixing structure is disposed on the end blocking piece 302, so that the end blocking piece 302 can rotate along with the shaft core 20, and the reliability of the door shaft assembly 1 in reducing the rotation speed of the shaft core 20 is ensured.
Specifically, the end flap 302 is an end collar.
In a specific embodiment, the second step portion 204 is provided with a flat position or a key slot, and the end stop piece 302 is matched with the second step portion 204, so as to realize the simultaneous rotation between the second step portion 204 and the end stop piece 302.
In an embodiment of the present invention, preferably, as shown in fig. 2, 5 and 9, the method further includes: and the limiting retainer ring 60 is sleeved on the shaft core 20 and is positioned between the first step part 202 and the base 10.
In this embodiment, the pressure of the telescopic assembly on the base 10 is reduced by disposing the limit check ring 60 between the first step portion 202 and the base 10, and since the shaft core 20 rotates relative to the base 10, the abrasion of the base 10 can be reduced, so that the base 10 can be made of a material with a lower cost, and the production cost of the base 10 is reduced.
In an embodiment of the present invention, as shown in fig. 2 and 9, preferably, the end stop 302 is provided with a first mounting hole, and a torsion spring arm at one end of the torsion spring 306 is inserted into the first mounting hole; the first friction plate 42 and the base 10 are respectively provided with a second mounting hole and a third mounting hole, and the torsion spring arm at the other end of the torsion spring 306 is provided with the second mounting hole and the third mounting hole.
In this embodiment, by providing the first mounting hole on the end portion blocking piece 302, the torsion spring arm at one end of the torsion spring 306 penetrates through the first mounting hole, so as to connect the torsion spring 306 and the end portion blocking piece 302, the first friction plate 42 and the base 10 are respectively provided with the second mounting hole and the third mounting hole, the torsion spring arm at the other end of the torsion spring 306 is provided with the second mounting hole and the third mounting hole, so as to connect the torsion spring 306 and the base 10, and further, the base and the first friction plate 42 are relatively fixed, and the plugging assembly manner is simple, so that the assembly time is saved.
In an exemplary embodiment, the first friction plate 42 may be embedded in the base 10 and injection molded with the base 10, or the first friction plate 42 may be adhered to the base 10 by using an adhesive, or the first friction plate 42 may be fixed to the base 10 by using a screw.
In one embodiment of the present invention, preferably, as shown in fig. 1 to 4 and fig. 9, the method further includes: a housing 70 on which the base 10 is disposed; the housing 70 includes: a first housing 702, the base 10 being disposed on the first housing 702; and a second housing 704 adapted to the first housing 702.
In this embodiment, the base 10 is provided on the housing 70, and the housing 70 protects the extension/contraction assembly core 20 and the like, thereby ensuring the reliability of the operation of the door spindle assembly 1.
Specifically, the base 10 is injection molded integrally with the first housing 702.
The initial angle of the flat position on the shaft core 20 in the door shaft assembly 1 provided by the invention can be freely adjusted through the pretightening force of the nut, the end retainer ring, the shaft sleeve 304 and the elastic sheet 50. The problem of difficulty in installation caused by the fact that the initial angle of the door shaft assembly 1 cannot be adjusted is fully solved.
According to the door shaft assembly 1 provided by the invention, the door shaft assembly 1 with large torque is realized by combining the torsion spring 306 and the friction plate, and the problem of difficult installation caused by incapability of adjusting the initial angle of the damper can be fully solved.
Wherein, the specific large torque damping effect is as follows: the surfaces of the first friction plate 42 and the second friction plate 44 are provided with non-smooth friction surfaces, so that the friction coefficient of the surfaces of the first friction plate 42 and the second friction plate 44 is increased, and a certain friction force F is generatedf(ii) a Meanwhile, the torsion spring arm at one end of the torsion spring 306 is inserted into the end part blocking piece 302 and does not move relative to the shaft core 20, the torsion spring arm at the other end passes through the second friction plate 44 and is inserted into the base 10 and does not rotate relative to the shell 70, when the shell 70 moves relative to the shaft core 20, the torsion spring 306 is stressed by the knob force to block the falling of the door cover of the washing machine, the other resistance is generated, and the two resistances are superposed to achieve a larger damping effect.
The specific difficulty in solving the installation problem is as follows: because washing machine door closure opening angle limits, because factors such as the condition restriction of assembler self, for convenient installation, the initial angle of axle core 20 will have certain free variation in door axle subassembly 1 for assembly personnel can freely adjust the relative angle of axle core 20 in the door axle subassembly 1.
As shown in FIG. 10, the door shaft assembly 1 of the present invention generates a damping force F by the first friction plate 42 and the second friction plate 44fOvercoming the torsion F of the torsion spring 306 of a certain valueySo that the shaft core 20 of the door shaft component 1 has a certain negative angle alpha1And further effectively solves the problem of difficult installation caused by the current installation angle of the door shaft assembly 1 being incapable of being adjusted, and the torsion force F of the torsion spring 306yAs the rotation angle α of the shaft core 20 with respect to the base 10 gradually increases, the rotation angle α of the shaft core 20 with respect to the base 10 is set to be α when the door body is opened and closed to the maximum extent2In this state, the torsion force F of the torsion spring 306yThe maximum state is assumed.
In the embodiment, the greater the friction coefficient between the first friction plate 42 and the second friction plate 44 and the greater the torsion of the torsion spring 306, the more significant the damping effect generated by the door spindle assembly 1.
According to a second aspect of embodiments of the present invention, there is provided a washing machine comprising: a door spindle assembly 1 as provided in any of the above embodiments.
The washing machine provided by the invention comprises the door shaft assembly 1 provided by any one of the above embodiments, so that all the advantages of the door shaft assembly 1 provided by any one of the above embodiments are achieved, and the description is omitted.
In summary, in the door shaft assembly 1 of the present invention, the shaft core 20 is inserted into the through hole of the base 10, the elastic assembly 30 mounted on the shaft core 20 presses the first friction plate 42 and the second friction plate 44, and further when the shaft core 20 rotates relative to the base 10, the friction surface of the first friction plate 42 rubs against the friction surface of the second friction plate 44 to provide a resistance force for the shaft core 20 and the base 10, and the elastic assembly 30 itself applies a torsion force between the shaft core 20 and the base 10 to provide another resistance force for the shaft core 20 and the base 10, and the two are overlapped to achieve a large damping effect. Specifically, after the washing machine is assembled, the shaft core 20 is connected with one of the door body or the machine body, the base 10 is installed on the other of the door body or the machine body, when the door body is closed, the elastic component 30 is in a tense state, in the opening process of the door body, the elastic component 30 gradually relaxes, after the door body is completely opened, the elastic component 30 is in a relaxed state or a more relaxed state, in the closing process of the door body, the elastic component 30 gradually transits to the tense state from the relaxed state or the more relaxed state, and then the first friction plate 42 and the second friction plate 44 are matched with friction to realize damping between the door body and the machine body, so that the door body is slowly closed, the phenomenon that the door body and the machine body collide violently due to too fast falling speed at the high position of the door body is avoided, and the service life and the safety of the washing machine are improved.
In the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and the terms "connected" and "connecting" are used in a broad sense, e.g., "connected" may be a fixed connection, a detachable connection, or an integral connection; the terms "connected" and "connected" may be directly connected or indirectly connected through an intermediate, and those skilled in the art can understand the specific meaning of the above terms in the present invention according to specific situations.
In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means 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 do not necessarily 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.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (8)

1. A door spindle assembly (1) for a washing machine, characterized by comprising:
the device comprises a base (10), wherein a through hole is formed in the base (10);
the shaft core (20) is rotatably arranged in the through hole in a penetrating way, and a connecting part (200) is arranged on the shaft core (20);
a first friction plate (42) fixed to the base (10);
the second friction plate (44) is sleeved on the shaft core (20) and rotates along with the shaft core (20), and the friction surface of the first friction plate (42) is attached to the friction surface of the second friction plate (44);
the elastic assembly (30) is sleeved on the shaft core (20), is connected with the shaft core (20) and the base (10), compresses the first friction plate (42) and the second friction plate (44), and provides torsion for the shaft core (20) and the base (10) when the shaft core (20) and the base (10) rotate relatively;
when the door body is closed, the elastic component (30) is in a tense state, the elastic component (30) is gradually relaxed in the opening process of the door body, and after the door body is completely opened, the elastic component (30) is in a relaxed state or a more relaxed state;
the elastic assembly (30) further comprises: the shaft sleeve (304) is sleeved on the shaft core (20), and the torsion spring (306) is sleeved outside the shaft sleeve (304);
the elastic sheet (50) is sleeved on the shaft core (20) and located between the second friction sheet (44) and the shaft sleeve (304), one side of the elastic sheet (50) abuts against the shaft sleeve (304), the other side of the elastic sheet abuts against the second friction sheet (44), and the elastic sheet (50) is provided with an elastic tilting part;
the elastic assembly (30) comprises:
the end part blocking piece (302) is arranged on the shaft core (20) and rotates along with the shaft core (20);
the bushing (304) is positioned between the end stop (302) and the second friction plate (44);
one end of the torsion spring (306) is connected with the base (10), and the other end of the torsion spring is connected with the end part baffle plate (302);
the limiting piece (308) is arranged on the shaft core (20), is positioned on one side, deviating from the base (10), of the end part blocking piece (302), and is used for fixing the installation position of the end part blocking piece (302).
2. Door spindle assembly (1) according to claim 1,
the shaft core (20) is a stepped shaft;
the shaft core (20) includes:
a first stepped portion (202) on which the connection portion (200) is provided, the first stepped portion having a cross-sectional area larger than that of the through-hole;
the second step part (204) is positioned at one end of the first step part and penetrates through the through hole of the base (10), and the shaft sleeve (304) is sleeved on the second step part (204);
and the third step part (206) is positioned at one end of the second step part, and the limiting part (308) is fixed on the third step part (206).
3. Door spindle assembly (1) according to claim 2,
the second step part is provided with a first positioning structure;
and a second positioning structure matched with the first positioning structure is arranged on the end part blocking piece (302).
4. A door spindle assembly (1) according to claim 2, further comprising:
and the limiting check ring (60) is sleeved on the shaft core (20) and is positioned between the first step part and the base (10).
5. Door spindle assembly (1) according to claim 1,
a first mounting hole is formed in the end part baffle (302), and a torsion spring arm at one end of the torsion spring (306) penetrates through the first mounting hole;
the first friction plate (42) and the base (10) are respectively provided with a second mounting hole and a third mounting hole, and a torsion spring arm at the other end of the torsion spring (306) is inserted into the second mounting hole and the third mounting hole.
6. Door spindle assembly (1) according to any of claims 1 to 5,
the limiting piece (308) is a nut, and a thread matched with the nut is arranged on the shaft core (20).
7. A door spindle assembly (1) according to any of claims 1 to 5, further comprising: a housing (70), the base (10) being disposed on the housing (70);
the housing (70) includes:
a first housing (702), the base (10) being disposed on the first housing (702);
a second housing (704) adapted to the first housing (702).
8. A washing machine, characterized by comprising:
door spindle assembly (1) according to any one of the preceding claims 1 to 7.
CN201810465778.8A 2018-05-16 2018-05-16 Door shaft assembly and washing machine Active CN110499979B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810465778.8A CN110499979B (en) 2018-05-16 2018-05-16 Door shaft assembly and washing machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810465778.8A CN110499979B (en) 2018-05-16 2018-05-16 Door shaft assembly and washing machine

Publications (2)

Publication Number Publication Date
CN110499979A CN110499979A (en) 2019-11-26
CN110499979B true CN110499979B (en) 2021-08-20

Family

ID=68584687

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810465778.8A Active CN110499979B (en) 2018-05-16 2018-05-16 Door shaft assembly and washing machine

Country Status (1)

Country Link
CN (1) CN110499979B (en)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100538626B1 (en) * 2003-05-13 2005-12-22 주식회사 팬택앤큐리텔 Hinge apparatus of mobile terminal with deceleration section
CN100467890C (en) * 2005-12-01 2009-03-11 鸿富锦精密工业（深圳）有限公司 Hinge structure
CN201326643Y (en) * 2008-12-26 2009-10-14 真益电子（深圳）有限公司 A rotating shaft structure
CN202706731U (en) * 2012-05-29 2013-01-30 绍兴巴菲酒店用品制造有限公司 Omni-directional hinge device on buffet furnace
CN103266820A (en) * 2013-05-27 2013-08-28 延锋伟世通汽车饰件系统有限公司 Free stopping mechanism
CN104727679B (en) * 2014-07-03 2016-06-08 佛山市顺德区美的洗涤电器制造有限公司 Door hinge mechanism and dishwasher
US9557776B1 (en) * 2016-05-10 2017-01-31 Zagg Intellectual Property Holding Co., Inc. Friction resistance hinge with auto-lock
CN107245851B (en) * 2017-05-31 2021-09-17 青岛海尔洗衣机有限公司 Door cover device with power assisting and damping functions, method and washing machine

Also Published As

Publication number Publication date
CN110499979A (en) 2019-11-26

Similar Documents

Publication Publication Date Title
TWI373544B (en) Washing machine
KR102328243B1 (en) Improved refrigerator hinge
EP2171192A1 (en) Hinge damper
CA2714442A1 (en) Hinge having a damping device
CN110080643B (en) Hinge and household device with same
US6607236B2 (en) Door support system
US10428876B2 (en) Clutch disk with torsional angular-dependent friction damping device
CN110499979B (en) Door shaft assembly and washing machine
US20020121002A1 (en) Structure of hinge for use in a computer
KR20080101050A (en) Damping hinge for furniture
KR101643408B1 (en) Hinge having double damper
CN110553023A (en) Overload protector and electric stay bar
JP3475307B2 (en) Automatic reset type hinge
US10563443B1 (en) Door hinge
CN210135165U (en) Automatic spring-open limiting hinge device
EP0708895B1 (en) Friction clutch driven plates
CN210659631U (en) Damping hinge
WO2007024070A1 (en) Free hinge for opening and closing door
KR200406892Y1 (en) Hinge module for electric rice cooker
KR102112854B1 (en) Hinge unit of console armrest for vehicle
CN108081944A (en) A kind of torsional vibration damper for hybrid electric vehicle
US2083561A (en) Internal combustion engine
JP2003336424A (en) Door check device
CN211749249U (en) Intelligent toilet lid and intelligent toilet with same
CN214128254U (en) Sandwich machine

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant