CN106996010B - Washing machine's automatic levelling device and washing machine - Google Patents
Washing machine's automatic levelling device and washing machine Download PDFInfo
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- CN106996010B CN106996010B CN201610042556.6A CN201610042556A CN106996010B CN 106996010 B CN106996010 B CN 106996010B CN 201610042556 A CN201610042556 A CN 201610042556A CN 106996010 B CN106996010 B CN 106996010B
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- screw rod
- ring portion
- washing machine
- leveling device
- automatic leveling
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Abstract
The invention provides an automatic leveling device of a washing machine and the washing machine, wherein the automatic leveling device comprises a bottom foot and a bearing part, the bearing part is provided with an outer ring part fixed with a bottom plate of a shell of the washing machine and an inner ring part which is positioned at the inner side of the outer ring part and can move relative to the outer ring part in the circumferential direction; the base is provided with a base plate, a screw rod sleeve and a first leveling spring, wherein the first leveling spring is sleeved on the screw rod and is positioned between the base and the base plate. By arranging the screw rod, the bearing part, the screw rod sleeve and the first leveling spring, the relative position relation between the bottom foot and the bottom plate of the shell is automatically adjusted according to the pressure applied to the automatic leveling device, so that the automatic leveling of the washing machine is realized, the trouble of manual adjustment is avoided, and the automatic leveling device has a simple structure and high reliability; and the automatic leveling device can play a role in buffering vibration and reducing noise in the washing process of the washing machine.
Description
Technical Field
The invention belongs to the technical field of washing machines, and particularly relates to an automatic leveling device of a washing machine and the washing machine.
Background
A washing machine is an apparatus for removing stains from laundry using chemical action of detergent and mechanical movement of an inner tub or a pulsator. The level adjustment of the washing machine is an important problem when the washing machine is installed, if the washing machine is not leveled, the outer cylinder of the washing machine and the shell are easy to collide in the washing process, even the whole washing machine shakes violently on the ground, various noises are generated, and the washing machine is easy to damage after being used for a long time. And vibration caused by the unevenness of the washing machine can loosen the foot screw, and the instability can change the horizontal state of the washing machine, so that stronger vibration is generated; causing the noise of the washing machine to become greater and greater.
The washing machine comprises a machine shell and four bottom feet arranged at the bottom of the machine shell and used for supporting the washing machine, the bottom feet are divided into fixed bottom feet and adjustable bottom feet, the number of the adjustable bottom feet is one or two, the level of the washing machine is adjusted by adjusting the adjustable bottom feet, the adjustable bottom feet comprise a base in contact with the ground and a threaded column arranged on the base, a screw hole matched with the threaded column is arranged at the bottom of the machine shell, the distance between the bottom surface of the machine shell and the ground is adjusted through the rotation of the threaded column, and the purposes of keeping the level of the washing machine and stabilizing the grounding of the. Because the washing machine is heavy, when leveling, the base of the bottom foot has larger friction force with the ground, so that the leveling needs to apply larger torque and the adjustment operation is troublesome; and the leveling effect is generally only to adjust balance according to human judgment, namely the washing machine shell does not shake by applying force by hands, but the washing machine is probably not in a horizontal state. In addition, the household washing machine is generally placed on a bathroom or a balcony, and the floor of the bathroom or the balcony is generally designed to have a slope in consideration of convenience in drainage, which further increases the difficulty in leveling the washing machine.
Disclosure of Invention
The invention provides an automatic leveling device of a washing machine, aiming at the problem that the leveling operation of the washing machine is difficult in the prior art.
In order to achieve the technical purpose, the invention adopts the following technical scheme:
an automatic leveling device of a washing machine comprises a bottom foot, wherein the bottom foot is provided with a base contacted with the ground and a screw rod arranged on the base; a receiving member having an outer ring portion fixed to a bottom plate of a washing machine casing, and an inner ring portion located inside the outer ring portion and movable circumferentially relative to the outer ring portion; the screw rod sleeve is matched with the screw rod and sleeved on the screw rod, and the screw rod is sleeved on the inner ring part; the first leveling spring is sleeved on the screw rod and positioned between the base and the bottom plate.
Furthermore, when the pressure applied to the automatic leveling device changes, the screw rod is sleeved on the screw rod and tends to move relatively, and the inner ring portion and the outer ring portion tend to move relatively in the circumferential direction.
Further, when the axial force applied to the screw rod sleeve reaches a certain value, the screw rod sleeve rotates on the screw rod and moves in the axial direction, and the inner ring portion rotates along with the screw rod sleeve and moves circumferentially relative to the outer ring portion.
Further, the screw rod sleeve is fixed on the inner side of the inner ring portion or the screw rod sleeve and the inner ring portion are of an integrated structure.
Furthermore, the automatic leveling device also comprises a blocking part which is arranged at the top of the screw rod and is fixed with the screw rod.
Furthermore, the automatic leveling device also comprises a pressing sheet arranged on the upper part of the screw rod and a second leveling spring positioned between the pressing sheet and the bottom plate.
Further, the bearing member is provided with a rolling part, and a clamping groove for accommodating the rolling part is formed between the outer ring part and the inner ring part.
Further, the rolling part comprises a plurality of rolling bodies distributed along the circumferential direction of the clamping groove and a retainer for separately guiding the rolling bodies.
Further, the rolling bodies are cylindrical, ball-shaped or conical.
Further, the receiving member is coaxial with the screw rod.
Further, the outer side of the base is coated with a rubber layer.
Based on the automatic leveling device of the washing machine, the invention also provides the washing machine which is provided with the automatic leveling device and automatically levels through the change of the pressure applied to the automatic leveling device.
A washing machine comprises a machine shell, wherein the machine shell is provided with a bottom plate, and at least one automatic leveling device is arranged on the bottom plate.
Furthermore, a mounting hole is formed in the bottom plate, the outer ring portion is fixed to the mounting hole, and the screw rod penetrates through the mounting hole.
According to the automatic leveling device of the washing machine, the screw rod, the bearing part, the screw rod sleeve and the first leveling spring are arranged, and the relative position relation between the bottom foot and the bottom plate of the shell is automatically adjusted according to the pressure applied to the automatic leveling device, so that the automatic leveling of the washing machine is realized, the trouble of manual adjustment is avoided, and the automatic leveling device is simple in structure and high in reliability; and the automatic leveling device can play a role in buffering vibration and reducing noise in the washing process of the washing machine.
Other features and advantages of the present invention will become more apparent from the following detailed description of the invention when taken in conjunction with the accompanying drawings.
Drawings
Fig. 1 is a schematic structural view of an embodiment of an automatic leveling device of a washing machine according to the present invention;
FIG. 2 is a schematic view of the enlarged main view of FIG. 1;
FIG. 3 is a schematic sectional view taken along line A-A in FIG. 2;
fig. 4 is a schematic structural view of the washing machine of fig. 1.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.
In the description of the present invention, it should be noted that the terms "inside", "upper", "lower", and the like indicate orientations or positional relationships based on positional relationships shown in the drawings, which are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Referring to the drawings, which is an embodiment of the automatic leveling device of the washing machine according to the present invention, the washing machine includes a housing 10, the housing 10 has a bottom plate 101, four automatic leveling devices 20 are disposed on the bottom plate 101, and a precondition is provided for smooth operation of the washing machine by the automatic leveling devices 20.
Referring to the drawings, the automatic leveling device 20 includes a foot 1, a receiving member 2, a screw housing 3, and a first leveling spring 4, wherein the foot 1 has a base 11 contacting the ground, and a screw 12 provided on the base 11; the receiving member 2 has an outer ring portion 21 fixed to the bottom plate 101 of the washing machine casing 10, and an inner ring portion 22 located inside the outer ring portion 21 and movable circumferentially relative to the outer ring portion 21; the screw rod sleeve 3 is matched with the screw rod 12 and is sleeved on the screw rod 12, and the screw rod sleeve 3 is fixed with the inner ring part 22; the first leveling spring 4 is sleeved on the screw rod 12 and positioned between the base 11 and the bottom plate 101.
Thus, the weight of the washing machine is transmitted to the automatic leveling device 20 through the bottom plate 101, so that the screw bushing 3 rotates on the screw 12 and moves downward, the inner ring portion 22 is fixed to the screw bushing 3, and thus the inner ring portion 22 rotates along with the screw bushing 3 and moves downward; while the inner ring portion 22 is also moved rotationally circumferentially relative to the outer ring portion 21; the outer ring part 21 moves downwards under the driving of the inner ring part 22, the outer ring part 21 is fixed on the bottom plate 101, that is, the bottom plate 101 at the outer ring part 21 moves upwards or downwards, and the bottom 1 moves downwards relative to the bottom plate 101 of the machine shell 10, or the bottom plate 101 moves downwards relative to the base 11, thereby achieving the purpose of leveling the washing machine.
When the axial downward force of the screw 12 distributed to the automatic leveling device 20 by the washing machine is equal to the axial upward elastic force given to the bottom plate 101 by the first leveling spring 4 and the axial friction force between the screw sleeve 3 and the screw 12, the automatic leveling device 20 is not adjusted any more and is in a balanced state.
In the washing process of the washing machine, the washing machine has certain vibration, the vibration force in the vertical direction can be adjusted and absorbed through the automatic leveling device 20, the vibration can be buffered, and the noise is reduced. Of course, a snap structure may be added, and after the washing machine is transported to a user's home and leveled by the automatic leveling device 2, the snap structure is used to snap lock the bottom plate 101 and the ground leg 1, so that the automatic leveling device 2 cannot be adjusted after being installed and leveled.
In the embodiment, the screw rod 12, the bearing part 2, the screw rod sleeve 3 and the first leveling spring 4 are arranged, so that the relative position relation between the bottom foot 1 and the bottom plate 101 of the shell is automatically adjusted according to the pressure applied to the automatic leveling device, the automatic leveling of the washing machine is realized, the trouble of manual adjustment is avoided, and the automatic leveling device is simple in structure and high in reliability.
In particular, the bearing part 2 is arranged so that the automatic leveling device 20 performs automatic adjustment according to the axial force received by the screw sleeve 3, and the outer ring part 21 and the inner ring part 22 are relatively static in the axial direction, that is, the outer ring part 21 and the inner ring part 22 can only perform relative rotation movement around the axis; the inner ring portion 22 has rotation and vertical movement following the lead screw cover 3, the inner ring portion 22 rotates in the inner circumferential direction of the outer ring portion 21, and the outer ring portion 21 has vertical movement following only the inner ring portion 22.
In order to reduce the resistance or friction force of the relative rotational movement between the outer ring portion 21 and the inner ring portion 22, the receiving member 2 further has a rolling portion 23 disposed between the outer ring portion 21 and the inner ring portion 22, that is, an annular clamping groove 24 is formed between the outer ring portion 21 and the inner ring portion 22, the rolling portion 23 is located in the clamping groove 24, so that the rolling friction is formed between the outer ring portion 21 and the inner ring portion 22, so that the internal threaded member can be driven to rotate by a smaller torque, the required driving force is smaller, the size of the driving member 4 can be smaller, and the arrangement of the driving device 4 in the housing 1 is facilitated. By the structural arrangement between the outer ring portion 21, the inner ring portion 22, and the rolling portion 23, the bearing member 2 can receive the force in the axial direction, and the outer ring portion 21 and the inner ring portion 22 are relatively stationary in the axial direction.
Specifically, the rolling part 23 includes a plurality of rolling bodies and a cage distributed along the circumferential direction of the engaging groove 24, and the cage is used for equally spacing and uniformly distributing the rolling bodies on the circumference of the engaging groove 24 to prevent the rolling bodies from colliding with each other during operation and to guide the rolling bodies to roll. The specific structure of the rolling bodies can be cylindrical, ball-shaped or conical, and the rolling bodies can also be arranged in a single-row structure, a double-row structure or a three-row structure.
Specifically, when the pressure applied to the automatic leveling device 20 changes, mainly when the force in the axial direction of the automatic leveling device 20 changes, since the elastic force provided by the first leveling spring 4 does not change yet, the changed force is transmitted to the screw rod sleeve 3, so that the screw rod sleeve 3 has a tendency of relative movement on the screw rod 12, and a tendency of relative circumferential movement is also provided between the inner ring portion 22 and the outer ring portion 21. When the axial force applied to the screw rod sleeve 3 reaches a certain value, that is, the friction force in the axial direction between the screw rod sleeve 3 and the screw rod 12 is overcome, the screw rod sleeve 3 starts to rotate on the screw rod 12 and moves in the axial direction, the inner ring part 22 rotates along with the screw rod sleeve 3 and moves circumferentially relative to the outer ring part 21, the outer ring part 21 only moves in the axial direction, and at the moment, the distance between the base plate 101 at the outer ring part 21 and the base 11 is changed, so that the elastic force provided by the first leveling spring 4 is changed; when the axial downward force of the screw 12 distributed on the automatic leveling device 20 by the washing machine is equal to the axial upward elastic force given to the bottom plate 101 by the first leveling spring 4 and the axial friction force between the screw sleeve 3 and the screw 12, the automatic leveling device 20 is not adjusted any more and is in a balanced state.
In the present embodiment, the screw rod 12, the screw rod sleeve 3, the inner ring portion 22, and the outer ring portion 21 are coaxially disposed. The screw rod sleeve 3 is fixed inside the inner ring part 22, and the screw rod sleeve 3 and the inner ring part 22 can be integrated.
For the installation and fixation of the automatic leveling device 20, a mounting hole is opened on the bottom plate of the casing 10, the outer ring portion 21 is fixed at the mounting hole, and at this time, the screw rod 12 passes through the mounting hole.
In order to avoid the separation between the screw rod 12 and the screw rod sleeve 3, the automatic leveling device 20 also comprises a blocking part 7 which is arranged at the top of the screw rod 12 and is fixed with the screw rod 12; when the screw rod sleeve 3 moves to the top of the screw rod 12, the screw rod sleeve 3 is contacted with the blocking part 7 at the moment, so that the screw rod sleeve 3 cannot move upwards continuously, and the separation of the screw rod 12 and the screw rod sleeve 3 is blocked. The blocking part 7 can be a nut fixed on the top of the screw rod 12 by welding or screwing.
The automatic leveling device 20 further includes a pressing plate 5 provided on the top of the screw 12, and a second leveling spring 6 between the pressing plate 5 and the base plate 101. The second leveling spring 6 is arranged, so that collision contact between the pressing sheet 5 and the bottom plate 101 is avoided, and the screw rod sleeve 3 is favorably adjusted upwards; and through setting the second leveling spring 6, the second leveling spring 6 can be in an extension state under the leveling state of the washing machine, namely the second leveling spring 6 has upward pulling force to the bottom plate 101, the pressure applied to the first leveling spring 4 is reduced, and the stress state of the automatic leveling device 20 is improved; and to facilitate damping of vibration during washing.
In order to increase the firmness of the foot 1 and to reduce vibrations during washing, the base 11 is covered on the outside with a rubber layer 13.
The foregoing is directed to preferred embodiments of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow. However, any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention are within the protection scope of the technical solution of the present invention.
Claims (9)
1. An automatic leveling device of a washing machine, comprising:
the bottom foot is provided with a base contacted with the ground and a screw rod arranged on the base;
a receiving member having an outer ring portion fixed to a bottom plate of a washing machine casing, and an inner ring portion located inside the outer ring portion and movable circumferentially relative to the outer ring portion;
the screw rod sleeve is matched with the screw rod and sleeved on the screw rod, and the screw rod is sleeved on the inner ring part;
the first leveling spring is sleeved on the screw rod and positioned between the base and the bottom plate;
the leveling mechanism also comprises a pressing piece arranged at the upper part of the screw rod and a second leveling spring positioned between the pressing piece and the bottom plate;
the inner ring portion is fixed with the screw rod sleeve, the outer ring portion and the inner ring portion are relatively static in the axial direction, and the first leveling spring gives the bottom plate elastic force which is upward in the axial direction.
2. The automatic leveling device of claim 1, wherein when the pressure applied to the automatic leveling device changes, the screw rod is sleeved on the screw rod and tends to move relatively, and the inner ring portion and the outer ring portion tend to move relatively in the circumferential direction.
3. The automatic leveling device according to claim 1, wherein when the screw rod sleeve is subjected to an axial force of a certain magnitude, the screw rod sleeve rotates on the screw rod and moves in the axial direction, and the inner ring portion rotates together with the screw rod sleeve and moves circumferentially with respect to the outer ring portion.
4. The automatic leveling device according to claim 1, wherein the automatic leveling device further comprises a blocking portion provided at a top of the screw rod and fixed to the screw rod.
5. The automatic leveling device according to any one of claims 1 to 4 wherein the receiving member further has a rolling portion, and a catching groove for receiving the rolling portion is formed between the outer ring portion and the inner ring portion.
6. The automatic leveling device according to claim 5, wherein the rolling portion includes a plurality of rolling bodies circumferentially distributed along the catching groove and a cage for separately guiding the rolling bodies.
7. The automatic leveling device according to any one of claims 1 to 4 wherein the outside of the base is covered with a rubber layer.
8. A washing machine comprising a cabinet having a base plate, wherein the base plate is provided with at least one self-leveling device as claimed in any one of claims 1 to 7.
9. The washing machine as claimed in claim 8, wherein the base plate is provided with a mounting hole, the outer ring portion is fixed at the mounting hole, and the screw rod passes through the mounting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610042556.6A CN106996010B (en) | 2016-01-22 | 2016-01-22 | Washing machine's automatic levelling device and washing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610042556.6A CN106996010B (en) | 2016-01-22 | 2016-01-22 | Washing machine's automatic levelling device and washing machine |
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| Publication Number | Publication Date |
|---|---|
| CN106996010A CN106996010A (en) | 2017-08-01 |
| CN106996010B true CN106996010B (en) | 2021-03-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610042556.6A Active CN106996010B (en) | 2016-01-22 | 2016-01-22 | Washing machine's automatic levelling device and washing machine |
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| Country | Link |
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| CN (1) | CN106996010B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109423828B (en) * | 2017-08-28 | 2022-08-19 | 青岛海尔洗衣机有限公司 | Vibration damping device for clothes treatment equipment and clothes treatment equipment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2250392Y (en) * | 1996-04-09 | 1997-03-26 | 李学昌 | Automatic aligning device for parking equipment |
| CN1621600A (en) * | 2003-11-27 | 2005-06-01 | Lg电子株式会社 | Supporting apparatus for washing machine |
| CN201238237Y (en) * | 2008-04-22 | 2009-05-13 | 昆明理工大学 | Screw type vibration-damping generator |
| CN101896369A (en) * | 2007-12-14 | 2010-11-24 | 奥迪股份公司 | Spring strut arrangement for wheel suspensions of motor vehicles |
| CN101970254A (en) * | 2008-03-12 | 2011-02-09 | 奥迪股份公司 | Wheel suspension for steered wheels of motor vehicles |
-
2016
- 2016-01-22 CN CN201610042556.6A patent/CN106996010B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2250392Y (en) * | 1996-04-09 | 1997-03-26 | 李学昌 | Automatic aligning device for parking equipment |
| CN1621600A (en) * | 2003-11-27 | 2005-06-01 | Lg电子株式会社 | Supporting apparatus for washing machine |
| CN101896369A (en) * | 2007-12-14 | 2010-11-24 | 奥迪股份公司 | Spring strut arrangement for wheel suspensions of motor vehicles |
| CN101970254A (en) * | 2008-03-12 | 2011-02-09 | 奥迪股份公司 | Wheel suspension for steered wheels of motor vehicles |
| CN201238237Y (en) * | 2008-04-22 | 2009-05-13 | 昆明理工大学 | Screw type vibration-damping generator |
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| Publication number | Publication date |
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| CN106996010A (en) | 2017-08-01 |
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Effective date of registration: 20210126 Address after: 266101 Haier Industrial Park, 1 Haier Road, Laoshan District, Shandong, Qingdao Applicant after: QINGDAO HAIER WASHING MACHINE Co.,Ltd. Applicant after: Haier Zhijia Co.,Ltd. Address before: 266101 Haier Industrial Park, 1 Haier Road, Laoshan District, Shandong, Qingdao Applicant before: QINGDAO HAIER WASHING MACHINE Co.,Ltd. |
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