CN107237099B

CN107237099B - Washing machine

Info

Publication number: CN107237099B
Application number: CN201610189377.5A
Authority: CN
Inventors: 班永; 王立东; 周椿浩; 朱珍珍
Original assignee: Wuxi Little Swan Electric Co Ltd
Current assignee: Wuxi Little Swan Electric Co Ltd
Priority date: 2016-03-29
Filing date: 2016-03-29
Publication date: 2023-07-14
Anticipated expiration: 2036-03-29
Also published as: CN107237099A

Abstract

The invention discloses a washing machine, comprising: a housing defining an open-ended accommodation cavity therein; the door body is pivotally connected with the machine body to open and close the opening; the damper comprises a first matching part and a second matching part which are relatively movable, the first matching part is connected with one of the machine body and the door body, the second matching part is connected with the other of the machine body and the door body, and the first matching part and the second matching part mutually stop to increase the friction force between the door body and the machine body when the door body is closed. According to the washing machine provided by the embodiment of the invention, when the door body of the washing machine is closed, the function of damping the door body is realized through the interference generated by the first matching part and the second matching part, so that the door body can slowly fall down, and the problems of noise and clamping hands caused by the rapid falling of the door body are avoided. The washing machine has the advantages of simple structure, reliable connection of all parts, convenient assembly and disassembly, low noise when the door body is opened and closed, safe use and good user experience.

Description

Washing machine

Technical Field

The invention relates to the technical field of washing machines, in particular to a washing machine.

Background

In the related art pulsator washing machine, when many users use the pulsator washing machine, the users can easily clamp hands when closing the door, or the door body can directly and freely fall down to generate great noise, if the washing machine is opened in the running process, the washing machine has more serious potential safety hazards, so the door body structure of the pulsator washing machine has safety risks.

Disclosure of Invention

The present invention aims to solve at least one of the technical problems in the related art to some extent. Therefore, the invention provides the washing machine which has the advantages of simple structure, convenient assembly and disassembly, good damping effect when the door body is closed, safe use and good user experience.

According to an embodiment of the present invention, a washing machine includes: a body defining an open-ended accommodation cavity therein; a door body pivotably connected to the body to open and close the opening; the damper comprises a first matching part and a second matching part which are relatively movable, the first matching part is connected with one of the machine body and the door body, the second matching part is connected with the other of the machine body and the door body, and the first matching part and the second matching part mutually stop against each other when the door body is closed so as to increase friction force between the door body and the machine body.

According to the washing machine provided by the embodiment of the invention, the movable first matching part and the movable second matching part are arranged in the damper, so that when the door body of the washing machine is closed, the function of damping the door body is realized through interference generated by the first matching part and the second matching part, the door body can slowly fall down, and the problems of noise and hand clamping caused by rapid falling of the door body are avoided. The washing machine has the advantages of simple structure, reliable connection of all parts, convenient assembly and disassembly, low noise when the door body is opened and closed, safe use and good user experience.

In addition, the washing machine according to the embodiment of the invention can also have the following additional technical characteristics:

according to an embodiment of the present invention, the damper includes: a housing defining a mounting cavity therein and connected to one of the body and the door; the rotating shaft is rotatably arranged in the mounting cavity and is connected with the other one of the machine body and the door body; the bushing is arranged between the rotating shaft and the shell and is fixedly connected with the shell, and the first matching part and the second matching part are respectively arranged on the matching surface of the bushing and the rotating shaft.

According to one embodiment of the invention, the shell is fixedly connected with the door body, and one end of the rotating shaft is fixedly connected with the machine body.

According to one embodiment of the invention, the rotating shaft is provided with a positioning column, and the rotating shaft is fixedly connected with the machine body through the positioning column.

According to an embodiment of the present invention, the first and second engaging portions are respectively formed as protrusions protruding from an inner side surface of the bushing and an outer side surface of the rotating shaft.

According to one embodiment of the invention, the bushing comprises: the bushing comprises a bushing body, a bushing body and a bushing cover, wherein the bushing body forms a circular ring shape; the first bulge is arranged on the inner side wall of the bushing body and extends along the axial direction of the bushing body.

According to one embodiment of the invention, the spindle comprises: the rotating shaft body is cylindrical; the second bulge is arranged on the outer side wall of the rotating shaft body and extends along the axial direction of the rotating shaft body.

According to one embodiment of the present invention, the outer surfaces of the first and second protrusions respectively form curved surfaces.

According to one embodiment of the invention, the bushing is sleeved on the rotating shaft, and the outer side wall of the bushing is fixedly connected with the inner side wall of the shell.

According to one embodiment of the invention, the inner side wall of the shell is provided with a positioning groove, and the outer side wall of the bushing is provided with a positioning lug matched with the positioning groove.

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

Fig. 1 is a schematic structural view of a washing machine according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a damper of a washing machine according to an embodiment of the present invention;

FIG. 3 is a schematic structural view of a housing of the damper shown in FIG. 2;

FIG. 4 is a schematic structural view of a rotating shaft of the damper shown in FIG. 2;

fig. 5 is a schematic structural view of a bushing of the damper shown in fig. 2.

Reference numerals:

100: a washing machine;

10: a body; 10a: a receiving chamber; 10b: an opening;

20: a door body;

30: a damper;

33: a housing; 330a: a mounting cavity; 333: a positioning groove;

34: a rotating shaft; 341: a rotating shaft body; 342: a second protrusion; 343: positioning columns;

37: a bushing; 371: a bushing body; 372: a first protrusion; 373: and positioning the protruding blocks.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.

Hereinafter, a washing machine 100 according to an embodiment of the present invention will be described in detail with reference to fig. 1 to 5.

As shown in fig. 1, a washing machine 100 according to an embodiment of the present invention includes a body 10, a door 20, and a damper 30. Specifically, the body 10 defines a receiving chamber 10a having an opening 10b at one end thereof, and the door 20 is pivotally connected to the body 10 to open and close the opening 10b.

In other words, the washing machine 100 mainly comprises a machine body 10, a door body 20 and a damper 30, wherein a containing cavity 10a with an opening 10b at the upper end is defined in the machine body 10, the door body 20 is pivotally connected with the upper end of the machine body 10 through the damper 30, and the damper 30 can play a role in buffering in the process of adjusting the door body 20 from the open position to the closed position, so that the door body 20 is prevented from being clamped to a human hand due to sudden falling, and the door body 20 is prevented from giving out larger noise when falling.

Further, the damper 30 includes a relatively movable first engaging portion connected to one of the body 10 and the door body 20, and a second engaging portion connected to the other of the body 10 and the door body 20, the first engaging portion and the second engaging portion abutting against each other when the door body 20 is closed to increase friction between the door body 20 and the body 10.

Specifically, as shown in fig. 1 and 2, the first engaging portion of the damper 30 is fixedly connected to one of the body 10 and the door body 20 of the washing machine 100, and the second engaging portion of the damper 30 is fixedly connected to the other of the body 10 and the door body 20 of the washing machine 100, and when the door body 20 is switched between the open position and the closed position, the first engaging portion and the second engaging portion of the damper 30 are driven to move relatively. For example, when the door body 20 is adjusted from the open position to the closed position, the first engaging portion rotates in a direction approaching the second engaging portion, and the friction between the first engaging portion and the second engaging portion gradually increases, so that the resistance force applied to the door body 20 when closed increases, thereby playing a role of buffering.

Thus, according to the washing machine 100 of the embodiment of the present invention, the movable first matching portion and the movable second matching portion are provided in the damper 30, so that when the door body 20 of the washing machine 100 is closed, the function of damping the door body 20 is achieved by the interference generated by the first matching portion and the second matching portion, and thus the door body 20 can slowly fall, and noise and hand clamping problems caused by rapid falling of the door body 20 are avoided. The washing machine 100 has the advantages of simple structure, reliable connection of all parts, convenient assembly and disassembly, low noise when the door body 20 is opened and closed, safe use and good user experience.

Specifically, according to one embodiment of the present invention, the damper 30 includes a housing 33, a rotating shaft 34, and a bushing 37. Specifically, the housing 33 defines a mounting cavity 330a therein and is connected to one of the machine body 10 and the door body 20, the rotation shaft 34 is rotatably provided in the mounting cavity 330a and is connected to the other of the machine body 10 and the door body 20, the bush 37 is provided between the rotation shaft 34 and the housing 33 and is fixedly connected to the housing 33, and the first mating portion and the second mating portion are provided on mating surfaces of the bush 37 and the rotation shaft 34, respectively.

That is, the damper 30 is mainly composed of a housing 33, a rotating shaft 34, and a bushing 37. Wherein, as shown in fig. 3, a mounting cavity 330a extending in a horizontal direction (left-right direction as viewed in fig. 2 and 3) is defined in a housing 33 of the damper 30, and an outer sidewall of the housing 33 is fixedly coupled to one of the body 10 and the door body 20, a bushing 37 is embedded in the mounting cavity 330a, and a rotation shaft 34 is provided in the bushing 37, and one end of the rotation shaft 34 is coupled to the other of the body 10 and the door body 20 and rotatable with respect to the housing 33.

Wherein, the first mating portion is formed on the inner wall surface of the bushing 37 mated with the rotating shaft 34, and the second mating portion is formed on the outer wall surface of the rotating shaft 34 mated with the bushing 37, when the door body 20 is adjusted from the open position to the closed position, the first mating portion and the second mating portion are movably stopped and connected, the friction between the first mating portion and the second mating portion is gradually increased, so that the resistance of the door body 20 when closed is increased, and the buffering function is achieved. Therefore, the damper 30 has a simple structure, a small number of parts, and easy assembly and disassembly, and can realize the function of the damper door body 20 through interference generated by the first matching part and the second matching part, thereby meeting the design requirement.

In some embodiments of the present invention, the housing 33 is fixedly coupled to the door body 20, and one end of the rotating shaft 34 is fixedly coupled to the body 10.

Specifically, the outer side wall of the housing 33 is fixedly connected with the door 20, one end of the rotating shaft 34 is fixedly connected with the machine body 10, wherein the rotating shaft 34 is sleeved with a bushing 37, the rotating shaft 34 and the bushing 37 can rotate relatively, and the bushing 37 is embedded in the mounting cavity 330a and fixedly connected with the inner wall surface of the housing 33. When the door body 20 is adjusted from the open position to the closed position, the door body 20 drives the shell 33 to rotate so as to drive the first matching part to rotate towards the direction close to the second matching part, and the friction force between the first matching part and the second matching part is gradually increased, so that the resistance of the door body 20 when closed is increased, and the buffering effect is achieved.

Therefore, the housing 33 of the damper 30 is connected with the door 20, and the rotating shaft 34 of the damper 30 is connected with the machine body 10, so that when the door 20 of the washing machine 100 is closed, the door 20 can be slowly dropped by the interference generated by the first matching part and the second matching part, and the noise and the hand clamping problem caused by the rapid dropping of the door 20 are avoided, thereby the user experience is good.

Optionally, according to an embodiment of the present invention, the rotating shaft 34 is provided with a positioning post 343, and the rotating shaft 34 is fixedly connected with the machine body 10 through the positioning post 343.

Specifically, as shown in fig. 4, at least one end of the rotating shaft 34 is provided with a positioning post 343, the positioning post 343 is fixed on the machine body 10, and when the door body 20 is switched between the open position and the closed position, the rotating shaft 34 is always stationary relative to the machine body 10, i.e. when the door body 20 is adjusted from the open position to the closed position, the bushing 37 and the housing 33 rotate around the central axis of the rotating shaft 34.

Therefore, the positioning column 343 is arranged on the rotating shaft 34, so that the rotating shaft 34 and the machine body 10 can be fixedly connected, the rotating shaft 34, the bushing 37 and the shell 33 can rotate relatively, and the connecting structure is simple and convenient to assemble and disassemble. Of course, the connection mode of the rotation shaft 34 and the body 10 is not limited thereto, and the rotation shaft 34 of the damper 30 may be assembled with the body 10 by a key, thereby satisfying the design requirement.

In some embodiments of the present invention, the first and second mating portions are formed as protrusions protruding from the inner side surface of the bushing 37 and the outer side surface of the rotating shaft 34, respectively.

Referring to fig. 4, the protrusions on the inner sidewall of the bushing 37 and the protrusions on the outer sidewall of the rotating shaft 34 extend in the axial direction of the rotating shaft 34, respectively, and preferably, the axial length of the first fitting portion is equal to the axial length of the bushing 37 and the axial length of the second fitting portion is equal to the axial length of the rotating shaft 34. When the door body 20 is adjusted from the opening position to the closing position, the first matching part on the bushing 37 rotates towards the direction close to the second matching part on the rotating shaft 34, when the first matching part is stopped and connected with the second matching part, due to the gravity of the door body 20 or the force application effect of hands, the friction between the first matching part and the second matching part is gradually increased along with the bushing 37, so that the resistance of the door body 20 when being closed is gradually increased, the buffer effect is realized, the use safety of a user is ensured, and the user experience is good.

Therefore, the protrusions are respectively arranged on the outer side of the rotating shaft 34 of the damper 30 and the inner side of the bushing 37 in the axial direction, the function of the damping door body 20 of the washing machine 100 is realized by the interference principle generated by the two protrusions in the moving process, the undesirable hidden dangers of clamping hands, large noise and the like are eliminated, and the door of the washing machine 100 can be ensured to be closed immediately when the door is opened in the running process, so that the washing machine is safe and reliable.

Alternatively, the bushing 37 includes a bushing body 371 and a first protrusion 372, wherein the bushing body 371 is formed in a ring shape, and the first protrusion 372 is provided on an inner sidewall of the bushing body 371 and extends in an axial direction of the bushing body 371.

Specifically, as shown in fig. 5, the bushing 37 of the damper 30 is mainly composed of a bushing body 371 and a first protrusion 372, wherein the bushing body 371 is formed in a ring shape extending in a horizontal direction (a left-right direction as viewed in fig. 2), and the first protrusion 372 is formed on an inner wall surface of the bushing body 371 and extends in an axial direction of the bushing body 371.

Further, the rotating shaft 34 includes a rotating shaft body 341 and a second protrusion 342, wherein the rotating shaft body 341 is formed in a cylindrical shape, and the second protrusion 342 is provided on an outer sidewall of the rotating shaft body 341 and extends along an axial direction of the rotating shaft body 341.

Specifically, as shown in fig. 4, the rotation shaft 34 of the damper 30 is mainly composed of a rotation shaft body 341 and a second protrusion 342, wherein the rotation shaft body 341 forms a cylinder extending in a horizontal direction (left-right direction as viewed in fig. 2), and the second protrusion 342 is formed on an outer wall surface of the rotation shaft body 341 and extends in an axial direction of the rotation shaft body 341.

Thus, the bushing 37 and the shaft 34 are simple in structure, easy to machine and manufacture, and easy to assemble and disassemble. Preferably, the shaft 34 and the bushing 37 are each integrally formed pieces. Therefore, the integrally formed structure not only can ensure the structural and performance stability of the damper 30, but also is convenient to form and simple to manufacture, and omits redundant assembly parts and connecting procedures, so that the assembly efficiency of the washing machine 100 is greatly improved, the connection reliability of the rotating shaft 34, the bushing 37 and other parts is ensured, and moreover, the integral strength and stability of the integrally formed structure are higher, the assembly is more convenient, and the service life is longer.

Preferably, according to one embodiment of the present invention, the outer surfaces of the first protrusion 372 and the second protrusion 342 respectively form curved surfaces. When the door body 20 is adjusted from the opening position to the closing position, the first protrusion 372 and the second protrusion 342 are movably stopped and connected, the friction force between the first protrusion 372 and the second protrusion 342 is gradually increased, so that the resistance born by the door body 20 when being closed is gradually increased, the buffer effect is realized, the safety of a user is ensured, the door body 20 can be ensured to be stably operated when being opened and closed, noise can be reduced, the quality of the washing machine 100 is improved, and the user experience is good.

Wherein, according to an embodiment of the invention, the bushing 37 is sleeved on the rotating shaft 34, and the outer side wall of the bushing 37 is fixedly connected with the inner side wall of the shell 33. Preferably, the bushing 37 and the rotary shaft 34 are respectively made of a wear-resistant material, which is advantageous in improving the reliability of use of the damper 30.

It should be noted that, through setting up bush 37 between pivot 34 and casing 33, can avoid casing 33 to pass through frequent switch door after, with pivot 34 friction take place to destroy, establish bush 37 in casing 33, with pivot 34 direct cooperation, the maintenance man only need change new bush 37 can, easy installation and removal, easy maintenance has reduced cost of maintenance greatly.

Alternatively, according to an embodiment of the present invention, the inner sidewall of the housing 33 is provided with a positioning groove 333, and the outer sidewall of the bushing 37 is provided with a positioning protrusion 373 engaged with the positioning groove 333. Referring to fig. 3 and 5, the positioning groove 333 of the housing 33 corresponds to the positioning protrusion 373 of the bush 37 in position, and the sectional shape and size of the positioning groove 333 are the same as those of the positioning protrusion 373, so that the worker can improve the assembly efficiency of the washing machine 100 by sliding the bush 37 into the installation cavity 330a from one end of the housing 33 when assembling the washing machine 100.

Therefore, the matching of the positioning projection 373 and the positioning groove 333 not only can play a role in guiding and positioning, so that the assembly and disassembly efficiency of the damper 30 is improved, but also the radial rotation of the bushing 37 is limited, and the fixed connection between the bushing 37 and the shell 33 is ensured. The connecting structure of the bushing 37 and the housing 33 can reduce the number of parts, omit redundant connecting pieces, reduce the cost and improve the assembly efficiency. The washing machine 100 has a simple structure, reliable connection, and easy assembly and disassembly. Of course, the connection method of the present invention is not limited thereto.

When the washing machine 100 is in use, a user firstly opens the door body 20 of the washing machine 100, puts clothes to be washed into the inner cylinder, then closes the door body 20, at this time, the door body 20 rotates around the damper 30, the door body 20 drives the shell 33 of the damper 30 to rotate, the shell 33 of the damper 30 drives the bushing 37 to rotate, and as curved protrusions exist on the inner side surface of the bushing 37 of the damper 30 and the axial direction of the outer side surface of the rotating shaft 34, the two curved protrusions interfere with each other to generate torsion, so that the door body 20 can slowly fall, and noise and hand clamping problems caused by rapid falling of the door body 20 are avoided.

Other constructions and operations of the washing machine 100 according to the embodiment of the present invention are known to those skilled in the art, and will not be described in detail herein.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise. In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," 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 present invention. In this specification, schematic representations of the above terms are not necessarily directed 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, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.

Claims

1. A washing machine, comprising:

a body defining an open-ended accommodation cavity therein;

a door body pivotably connected to the body to open and close the opening;

a damper including relatively movable first and second engaging portions, the first engaging portion being connected to one of the body and the door body, the second engaging portion being connected to the other of the body and the door body, the first and second engaging portions being mutually stopped when the door body is closed to increase a friction force between the door body and the body;

the damper includes:

a rotating shaft;

the bushing is provided with a first matching part and a second matching part on the matching surface of the bushing connected with the rotating shaft.

2. The washing machine as claimed in claim 1, wherein the damper further comprises:

a housing defining a mounting cavity therein and connected to one of the body and the door;

the rotating shaft is rotatably arranged in the mounting cavity and is connected with the other one of the machine body and the door body;

the bushing is arranged between the rotating shaft and the shell and is fixedly connected with the shell.

3. The washing machine as claimed in claim 2, wherein the housing is fixedly connected to the door body, and one end of the rotation shaft is fixedly connected to the body.

4. A washing machine as claimed in claim 3 wherein the shaft is provided with a locating post, the shaft being fixedly connected to the body by the locating post.

5. The washing machine as claimed in claim 2, wherein the first and second engaging parts are respectively formed as protrusions protruding from an inner side surface of the bush and an outer side surface of the rotating shaft.

6. A washing machine as claimed in claim 3, wherein the bush comprises:

the bushing comprises a bushing body, a bushing body and a bushing cover, wherein the bushing body forms a circular ring shape;

the first bulge is arranged on the inner side wall of the bushing body and extends along the axial direction of the bushing body.

7. The washing machine as claimed in claim 6, wherein the rotation shaft includes:

the rotating shaft body is cylindrical;

the second bulge is arranged on the outer side wall of the rotating shaft body and extends along the axial direction of the rotating shaft body.

8. The washing machine as claimed in claim 7, wherein outer surfaces of the first and second protrusions are respectively formed in curved surfaces.

9. A washing machine as claimed in claim 3 wherein the sleeve is fitted over the shaft and the outer side wall of the sleeve is fixedly connected to the inner side wall of the housing.

10. The washing machine as claimed in claim 9, wherein the inner sidewall of the housing is provided with a positioning groove, and the outer sidewall of the liner is provided with a positioning protrusion engaged with the positioning groove.