CN111334983A - Damping piece and washing machine - Google Patents
Damping piece and washing machine Download PDFInfo
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- CN111334983A CN111334983A CN201811547378.8A CN201811547378A CN111334983A CN 111334983 A CN111334983 A CN 111334983A CN 201811547378 A CN201811547378 A CN 201811547378A CN 111334983 A CN111334983 A CN 111334983A
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- damping
- rod
- washing machine
- annular
- shock absorption
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
- D06F37/20—Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Vibration Prevention Devices (AREA)
- Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
Abstract
The present invention relates to a shock absorbing member for a washing machine, which includes: at least three sections of shock absorption rods, wherein the shock absorption rods are sequentially and correspondingly spliced and are connected in series to form a strip shock absorption piece; the inserted parts between the adjacent shock absorption rods are respectively provided with a damping component so as to provide damping force for the relative movement between the two inserted shock absorption rods. Through setting up the shock attenuation piece into the structure that three section or above shock attenuation pole spliced mutually in proper order and set up the damping structure respectively in each grafting department for the shock attenuation piece can superpose the combination shock attenuation through many places damping, with the damping power that provides the diversification, and then promotes the damping performance of shock attenuation piece. The invention also provides a washing machine, and the water containing barrel of the washing machine is arranged in the shell of the washing machine through the damping piece.
Description
Technical Field
The invention belongs to a washing machine in the field of washing equipment, and particularly relates to a damping piece for a washing machine.
Background
With the increase of high-end washing demands of user markets, the noise reduction demand of the washing machine on the market is higher and higher, but due to structural limitation, a large amount of noise is generated in the stretching movement process of the shock absorption member, and the shock absorption member can transmit vibration to the shell to cause vibration and even resonance noise of the body of the washing machine, so that a user cannot obtain good washing experience, and even complaints can be generated by the user.
The damping part of the current washing machine is generally formed by mutually inserting two damping rods, a damping structure is arranged between the inserted damping rods to provide damping acting force for the damping parts which can axially move mutually, so that a water containing barrel suspended in the shell of the washing machine counteracts the vibration action of the rotating process by the damping parts, and the aim of providing damping and buffering for the water containing barrel of the washing machine is fulfilled.
However, the conventional damping member can only provide a constant single damping force to the water containing barrel, and the damping force cannot be adjusted in the whole working process of the washing machine, so that a plurality of problems are caused by the simplification of the damping force under the whole working condition of the washing machine.
For example: when the water containing barrel runs at a high speed to execute a dehydration procedure, the suspended water containing barrel can generate high-frequency and small-amplitude vibration, and the damping piece can vibrate along with the vibration, so that constant damping force is always pushed and pulled, the vibration of the water containing barrel is transmitted to the shell of the washing machine, and the problem of overlarge vibration noise can be generated.
Also for example: when flourishing water drum low-speed starts, the flourishing water drum of suspension can produce low frequency, vibration by a wide margin because of the uneven scheduling problem of internal balance, and the damper can vibrate along with it, if the damper only can produce single damping effort, can lead to flourishing water drum amplitude unable the effect of rectifying when too big, and then produce the too big, even problem of removal of washing machine organism amplitude.
In view of the above, the present invention is particularly proposed.
Disclosure of Invention
The technical problem to be solved by the invention is to overcome the defects of the prior art and provide a damping piece so as to achieve the purposes of reducing the operation vibration and the operation noise of the washing machine; another purpose is to provide a washing machine with the damping piece, so as to achieve the purpose of improving the running stability of the whole machine, and another purpose is to provide the damping piece, so as to reduce the relative displacement between adjacent damping rods in the damping piece, and further achieve the purposes of reducing the damping structure abrasion of the damping piece and prolonging the service life of the damping piece.
In order to solve the technical problems, the invention adopts the technical scheme that:
a shock absorbing member for a washing machine, comprising: at least three sections of shock absorption rods, wherein the shock absorption rods are sequentially and correspondingly spliced and are connected in series to form a strip shock absorption piece; the inserted parts between the adjacent shock absorption rods are respectively provided with a damping component so as to provide damping force for the relative movement between the two inserted shock absorption rods.
Further, the damping component is any one or combination of a damping spring, a damping block, a hydraulic damping structure and a pneumatic damping structure.
Furthermore, the adjacent shock absorption rods are correspondingly and coaxially inserted, so that the strip-shaped shock absorption pieces which are coaxially arranged and formed by the shock absorption rods extend along a straight line.
Furthermore, damping coefficients of damping components at the splicing positions of the adjacent shock absorption rods are arranged in an unequal manner; preferably, the damping coefficient of the damping component at the insertion position of each adjacent shock absorption rod is gradually increased from one end to the other end, and the damping coefficient is the ratio of the damping acting force to the relative stroke.
Further, the damping device comprises a primary damping rod, a secondary damping rod and a tertiary damping rod which are formed by sleeve structures and are sequentially connected in an inserted manner; the lower extreme of one-level shock attenuation pole inserts from the upper end of second grade shock attenuation pole, and the upper end of tertiary shock attenuation pole inserts from the lower extreme of second grade shock attenuation pole, and two grafting punishments are equipped with damping member respectively.
Furthermore, the lower end of the secondary damping rod is provided with an annular bulge part which protrudes outwards, an annular damping block is arranged in the annular bulge part, and the upper end of the tertiary damping rod correspondingly penetrates through the hollow part of the annular damping block; preferably, the outer diameter of the annular damping block is larger than the inner diameter of the secondary damping rod and is equal to the diameter of the inner wall of the annular bulge, and the inner diameter of the annular damping block is smaller than the inner diameter of the secondary damping rod and is equal to the outer diameter of the upper end of the tertiary damping rod or a certain tolerance gap is reserved between the inner diameter of the annular damping block and the outer diameter of the upper end of the tertiary damping rod.
Furthermore, the outer wall of the primary damping rod is provided with a circle of annular cavity protruding outwards in the radial direction, the lower end of the annular cavity is provided with a circle of opening, and the upper end of the secondary damping rod is correspondingly inserted into the annular cavity from the opening; preferably, the upper end of the secondary damping rod is provided with an annular rib which protrudes outwards in the radial direction and is positioned in the annular cavity, and the peripheral diameter of the annular rib is larger than that of the opening; preferably, the periphery of the annular rib is correspondingly attached and contacted with the inner wall of the annular cavity.
Furthermore, a damping block capable of generating elastic deformation is filled in the annular cavity, and the annular rib is fixedly inserted in the middle of the damping block; or the insertion position of the annular cavity gap and the secondary damping rod is sealed, so that the annular cavity is surrounded into a closed cavity; the annular cavity is filled with damping liquid and/or damping gas.
Furthermore, the upper end of the first-level shock absorption rod is hinged with the water containing barrel of the washing machine, and the lower end of the third-level shock absorption rod is hinged with the shell of the washing machine; or the upper end of the first-level shock absorption rod is hinged with the washing machine shell, and the lower end of the third-level shock absorption rod is hinged with the water containing barrel of the washing machine.
Furthermore, the upper end of the third-level shock absorption rod penetrates into the cavity of the second-level shock absorption rod from the lower end of the second-level shock absorption rod and penetrates through the hollow part of the annular damping block to extend into the first-level shock absorption rod, and the diameter of the outer wall of the third-level shock absorption rod and the diameter of the inner wall of the first-level shock absorption rod are arranged in the same size or a certain tolerance gap is reserved between the diameter of the outer wall of.
The invention also provides a washing machine, wherein a water containing barrel of the washing machine is arranged in a shell of the washing machine through any one of the shock absorbing pieces.
In the dewatering starting process of the washing machine, the vibration amplitude of the water containing barrel is large, and at the moment, the damping structures simultaneously provide buffer displacement for the water containing barrel and reduce the vibration amplitude of the water containing barrel; and in the middle and later periods of the dewatering of the washing machine, the vibration amplitude of the water containing barrel is smaller, the water containing barrel is only required to be buffered and damped through the damping structure with the lower damping coefficient, and the damping structure with the higher damping coefficient can not act, so that the abrasion of the damping structure is reduced, and the reliability of the device is improved.
The invention changes the two-stage transmission mechanism of the damping piece into three-stage or more transmission, and each stage of transmission structure is distributed with a pair of damping rods which are mutually inserted, so that the damping structure provides damping force for the damping rods in the relative movement process. Wherein, the next-stage connecting structure in the shock-absorbing part formed by the three-stage transmission mechanism can provide larger displacement, and the damping force provided by the water containing cylinder in the upward and downward movement processes is constant damping force (generally 80N-120N); and the displacement stroke of the upper-stage connecting structure is smaller, the thrust is 0 in the middle of the stroke, and the thrust is continuously increased along with the upward and downward movement of the water containing barrel.
In the vibration process that the water containing barrel rotates at a high speed and the amplitude is very low, the upper-level connecting structure continuously vibrates, but the displacement is small, so that the generated thrust is very small, and the thrust generated by the upper-level connecting structure is not enough to push the lower-level connecting structure to move, so that the noise is greatly reduced in the operation process of the washing machine.
In the vibration process that the water containing barrel rotates at a low speed and has a large amplitude, when the displacement of the upper-stage connecting structure reaches a certain value and the thrust is increased and is greater than the damping force of the lower-stage connecting structure, the lower-stage connecting structure starts to generate displacement so as to inhibit the low-speed swing of the water containing barrel.
The damping piece with the structure can not only prevent the constant damping of the next-stage connecting structure from acting when the water containing barrel is at a high speed, reduce the vibration noise, but also prevent the next-stage connecting structure of the damping piece from inhibiting the low-speed swing of the water containing barrel at a low speed.
After adopting the technical scheme, compared with the prior art, the invention has the following beneficial effects:
1. through setting up the shock attenuation piece into the structure that three sections or above shock attenuation pole spliced mutually in proper order and set up the damping structure respectively in each grafting department for the shock attenuation piece can superpose the combination shock attenuation through many places damping, in order to promote shock attenuation stability.
2. In the process that the damping piece provides damping force, relative displacement is generated between every two adjacent damping rods along the axial direction, and damping acting force is provided through the damping structure in the displacement process so as to slow down the displacement and offset the vibration conducted by the water containing barrel of the washing machine, thereby realizing the reduction of vibration noise in the operation process of the washing machine and further ensuring the overall machine stability in the dehydration operation process of the washing machine.
The invention has simple structure and obvious effect and is suitable for popularization and use.
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention, are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without limiting the invention to the right. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
FIG. 1 is a schematic view of a damper mounting structure of a washing machine according to an embodiment of the present invention;
FIGS. 2 and 3 are schematic views showing the structure of a shock-absorbing member according to an embodiment of the present invention;
FIG. 4 is a schematic view of the structure of section A-A of the shock-absorbing member in the embodiment 1 of FIG. 3 according to the present invention;
FIG. 5 is a schematic view of the structure of section A-A of the shock-absorbing member in the embodiment 2 of FIG. 3 according to the present invention;
FIG. 6 is a schematic view of the structure of section A-A of a shock-absorbing member in the embodiment 3 of FIG. 3 according to the present invention;
FIG. 7 is an enlarged view of the invention at B of FIG. 6;
FIG. 8 is a schematic view of the structure of section A-A of the shock-absorbing member in the embodiment 4 of FIG. 3 according to the present invention.
Description of the main elements in the figures: 100. a shock absorbing member; 200. a water containing cylinder; 300. a base; 1. a primary shock absorbing rod; 2. a primary shock absorbing rod; 3. a primary shock absorbing rod; 4. a first hinge hole; 5. a second hinge hole; 6. an annular cavity; 7. an annular projection; 8. an annular rib; 91. a first damping block; 92. a second damping block; 10. an annular damping block; 11. damping fluid and/or damping gas; 12. a first damping spring; 13. a second damping spring.
It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate it by a person skilled in the art with reference to specific embodiments.
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 will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the following embodiments are used for illustrating the present invention and are not intended to limit the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1 to 8, in an embodiment of the present invention, there is provided a damper for a washing machine, including: at least three sections of shock absorption rods, wherein the shock absorption rods are sequentially and correspondingly spliced to form a strip-shaped shock absorption piece 100 in series; the inserted parts between the adjacent shock absorption rods are respectively provided with a damping component so as to provide damping force for the relative movement between the two inserted shock absorption rods.
Through setting up the shock attenuation piece into the structure that three sections or above shock attenuation pole spliced mutually in proper order and set up the damping structure respectively in each grafting department for the shock attenuation piece can superpose the combination shock attenuation through many places damping, in order to promote shock attenuation stability.
In the embodiment of the present invention, the damping member disposed on the shock absorbing member 100 may be any one or combination of a shock absorbing spring, a damping block, a hydraulic damping structure, a pneumatic damping structure, and other existing structures capable of providing damping force.
In the embodiment of the invention, the adjacent shock absorption rods are correspondingly and coaxially inserted, so that the strip-shaped shock absorption piece 100 formed by coaxially arranging and forming the shock absorption rods extends along a straight line. In the process that the damping piece 100 provides damping force, relative displacement is generated between every two adjacent damping rods along the axial direction, and damping acting force is provided through the damping structure in the displacement process so as to slow down the displacement and offset the vibration transmitted by the water containing barrel of the washing machine, and further the overall stability of the washing machine in the dehydration operation process is ensured.
In the embodiment of the invention, the damping coefficients of the damping components at the splicing positions of the adjacent shock absorption rods are not set to be equal; preferably, the damping coefficient of the damping member at the insertion position of each adjacent shock-absorbing rod increases gradually from the connection end of the shock-absorbing member 100 and the washing machine drum 200 to the connection end of the washing machine housing. Through the arrangement, in the dewatering starting process of the washing machine, the vibration amplitude of the water containing barrel is large, and at the moment, the damping structures simultaneously provide the buffering displacement for the water containing barrel and reduce the vibration amplitude of the water containing barrel; and in the middle and later periods of the dewatering of the washing machine, the vibration amplitude of the water containing barrel is smaller, and the water containing barrel is only required to be buffered and damped through the damping structure with the damping coefficient alternating low, so that the abrasion of the damping structure is reduced, and the reliability of the device is improved.
Example 1
As shown in fig. 2 to 4, the present embodiment describes a shock absorbing member for a washing machine, which includes: the damping device comprises a primary damping rod 1, a secondary damping rod 2 and a tertiary damping rod 3 which are formed by sleeve structures and are sequentially spliced; the lower extreme of one-level shock attenuation pole 1 inserts from the upper end of second grade shock attenuation pole 2, and the upper end of tertiary shock attenuation pole 3 inserts from the lower extreme of second grade shock attenuation pole 2, and two grafting punishments are equipped with damping member respectively.
Through setting up by the sleeve structure constitution, the shock attenuation pole of pegging graft each other in proper order for carry out radial spacing through grafting department between the adjacent shock attenuation pole, and on the vibration effect of flourishing water drum conduction was in shock attenuation pole grafting direction, make the damping component of adjacent shock attenuation pole grafting department carry out the shock attenuation cushioning effect respectively to the vibration of flourishing water drum conduction, in order to provide the combination form to flourishing water drum, diversified damping power, and then reach the vibration that reduces washing machine operation in-process, promote the purpose of washing machine operation stationarity.
In the embodiment, the upper end of the primary damping rod 1 is provided with a first hinge hole 4, and the lower end of the tertiary damping rod 2 is provided with a second hinge hole 5; the axes of the first hinge hole 4 and the second hinge hole 5 are both perpendicular to the extending direction of the shock absorbing member 100; preferably, the first hinge hole 4 and the second hinge hole 5 are axially arranged in parallel. Thereby, make one-level shock absorber rod articulated mutually through the pivot that passes first hinge hole and the flourishing water drum of washing machine, tertiary shock absorber rod articulated mutually through the pivot that passes the second hinge hole and washing machine base to make the vibration conduction that flourishing water drum produced only can produce the axial and stretch out and draw back to seeing behind the damper, reach and utilize the damping structure between the shock absorber rod of pegging graft mutually to the axial displacement of stretching out and drawing back the shock attenuation purpose.
In the embodiment, the lower end of the secondary damping rod 2 is provided with an annular bulge part 7 which protrudes outwards, an annular damping block 10 is arranged in the annular bulge part 7, and the upper end of the tertiary damping rod 3 correspondingly penetrates through the hollow part of the annular damping block 10; preferably, the outer diameter of the annular damping block 10 is larger than the inner diameter of the secondary damping rod 2 and is equal to the diameter of the inner wall of the annular protrusion 7, and the inner diameter of the annular damping block 10 is smaller than the inner diameter of the secondary damping rod 2 and is equal to the outer diameter of the upper end of the tertiary damping rod 3.
In this embodiment, the annular damping block 10 is installed in the annular protrusion 7 of the secondary damping rod 2, and is fixed in the annular protrusion 7 by being limited by the upper and lower wall surfaces of the annular protrusion 7, so that the annular damping block 10 cannot move in the axial direction of the damping member 100 by being limited. Meanwhile, the inner peripheral surface of the annular damping block 10 is in contact with the outer wall of the third-level shock absorption rod 3 in a fitting manner, the outer peripheral surface of the annular damping block 10 is in contact with or fixedly connected with the inner wall of the second-level shock absorption rod 2 in a fitting manner, and the contact surface of the annular damping block 10 and the third-level shock absorption rod 3 generates damping acting force for limiting relative movement under the action of friction, so that the annular damping block 10 forms a damping component and provides damping force for limiting the mutual axial movement of the second-level shock absorption rod 2 and the third-level shock absorption rod 3 at the splicing position.
In the embodiment, the outer wall of the primary damping rod 1 is provided with a circle of annular cavity 6 protruding outwards in the radial direction, the lower end of the annular cavity 6 is provided with a circle of opening, and the upper end of the secondary damping rod 2 is correspondingly inserted into the annular cavity 6 from the opening; the upper end of the secondary damping rod 2 is provided with an annular rib 8 which protrudes outwards in the radial direction and is positioned in the annular cavity 6, and the peripheral diameter of the annular rib 8 is larger than that of the opening; the periphery of the annular rib 8 is correspondingly attached and contacted with the inner wall of the annular cavity 6. Preferably, the annular opening is arranged at the joint of the lower side wall of the annular cavity 6 and the outer wall of the primary damping rod 1, so that the upper end of the secondary damping rod 2 which is inserted into the annular cavity 6 from the opening in the same size as the outer diameter of the primary damping rod 1 can be correspondingly inserted into the annular cavity 6 from the opening.
In this embodiment, annular chamber 6 intussuseption is filled with the damping piece that can produce elastic deformation, annular muscle 8 and damping piece's middle part looks fixed connection, in order to produce relative axial displacement in-process between second grade shock absorber rod 2 and one-level shock absorber rod 1, annular muscle 8 promotes and produces the extrusion effort between damping piece and the 6 inner walls of annular chamber, the extrusion effect transmits to and produces elastic deformation on the damping piece, and then produce the damping effort of restriction relative movement by the elastic deformation of damping piece, so that the damping piece constitutes the damping component, the department of pegging graft mutually provides the damping force of restriction the two mutual axial displacement to second grade shock absorber rod 2 and one-level shock absorber rod 1.
Preferably, as shown in fig. 4, in this embodiment, two damping blocks are disposed in the annular cavity 6, the first damping block 91 is disposed between the annular rib 8 and the upper side wall of the annular cavity 6, and the second damping block 92 is disposed between the annular rib 8 and the lower side wall of the annular cavity 6, so that the upper side and the lower side of the annular rib 8 respectively clamp one damping block, and respectively provide the limiting damping force to two different directions at the joint of the secondary damping rod 2 and the primary damping rod 1.
In this embodiment, the upper end of tertiary shock absorber pole 3 penetrates inside it from 2 lower extremes of second grade shock absorber poles to stretch into one-level shock absorber pole 1 inside after passing the well kenozooecium of annular damping piece 10, and the outer wall diameter of tertiary shock absorber pole 3 and the equal big setting of inner wall diameter of one-level shock absorber pole 1 to the corresponding laminating contact of the lower extreme inner wall that makes the upper end outer wall of tertiary shock absorber pole and one-level shock absorber pole. Through extending tertiary shock-absorbing rod to insert one-level shock-absorbing rod in all the time for the upper and lower both ends difference clearance support of whole damping piece is spacing, with the fixed position that increases whole damping piece, and then effective hoisting device's stability.
Example 2
This embodiment differs from embodiment 1 described above in that: as shown in fig. 5, in the present embodiment, the damping structure at the insertion joint of the primary damping rod 1 and the secondary damping rod 2 is formed by a hydraulic damping structure and/or a pneumatic damping structure.
As shown in fig. 5, in this embodiment, the upper end of the secondary damping rod 2 is correspondingly inserted into an annular cavity 6 that is convexly disposed on the outer side of the lower end of the primary damping rod 1, a circle of annular opening is disposed on the lower side of the annular cavity 6, and the insertion portion of the annular cavity 6 and the secondary damping rod 2 is hermetically disposed, so that the annular cavity 6 encloses a closed chamber; the end part of the secondary damping rod 2 inserted into the annular cavity 6 is provided with a circle of annular ribs 8 protruding in the radial direction, so that the insertion part of the secondary damping rod 2 and the primary damping rod 1 forms a piston cylinder structure consisting of the annular ribs 8 and the annular cavity 6. Meanwhile, damping fluid and/or damping gas 11 is filled in the annular cavity 6 to provide damping force for the movement of the annular ribs 8 in the annular cavity 6.
Through the device, the insertion position of the primary damping rod 1 and the secondary damping rod 2 forms a piston cylinder structure. Therefore, when mutual axial displacement is generated between the secondary damping rod 2 and the primary damping rod 1, the annular rib 8 provides a buffering damping force under the action of the damping liquid and/or the damping gas 11, so that the piston cylinder filled with the damping liquid and/or the damping gas 11 forms a damping component, and a damping force for limiting the mutual axial displacement of the secondary damping rod and the primary damping rod is provided at the splicing part of the secondary damping rod and the primary damping rod.
Similarly, the piston cylinder structure in the embodiment may also be disposed at the joint where the third-level damping rod 3 and the second-level damping rod 2 are inserted into each other, and still provide damping force for the mutual movement between the third-level damping rod 3 and the second-level damping rod 2.
In this embodiment, the damping gas 11 injected into the annular cavity 6 may be air directly, so as to utilize air resistance to buffer and damp the relative displacement between the two damping rods.
Example 3
This embodiment differs from embodiment 1 described above in that: as shown in fig. 6, in the present embodiment, the damping structure at the insertion point of the primary damping rod 1 and the secondary damping rod 2 is formed by a damping spring.
As shown in fig. 6 and 7, in this embodiment, the upper end of the secondary damping rod 2 is correspondingly inserted into the annular cavity 6 that is convexly disposed outside the lower end of the primary damping rod 1, a circle of annular gap is disposed on the lower side of the annular cavity 6, and the upper end of the secondary damping rod 2 is inserted into the annular cavity 6 from the gap of the annular cavity 6. The tip that second grade shock absorber rod 2 inserted in annular chamber 6 is equipped with radial convex round annular muscle 8, and the centre gripping has second spring 13 between the lower lateral wall of first spring 12, annular muscle 8 and annular chamber 6 between the upper lateral wall of annular muscle 8 and annular chamber 6, and first spring 12 and second spring 13 all are in compression state. In the absence of external forces, the first spring 12 and the second spring 13 cooperate to hold the annular rib 8 in the middle position of the annular cavity 6 to provide a play margin for the annular rib 8 to move up and down.
Therefore, when the mutual axial displacement is generated between the secondary damping rod 2 and the primary damping rod 1, the annular rib 8 provides a buffering damping force under the action of the first spring 12 or the second spring 13, so that the first spring 12 and the second spring 13 form a damping component, and a damping force for limiting the mutual axial displacement of the secondary damping rod 2 and the primary damping rod 1 is provided at the joint of the secondary damping rod 2 and the primary damping rod 1.
Similarly, in this embodiment, the damping structure formed by the damping spring may be further disposed at the insertion position of the third-level damping rod 3 and the second-level damping rod 2, and still provide a damping force for the mutual movement between the third-level damping rod 3 and the second-level damping rod 2.
Example 4
This embodiment differs from embodiment 1 described above in that: as shown in fig. 8, in this embodiment, the damping structure at the insertion point of the primary damping rod 1 and the secondary damping rod 2 is formed by combining a damping block and a hydraulic damping structure or a pneumatic damping structure.
As shown in fig. 8, in this embodiment, the upper end of the secondary damping rod 2 is correspondingly inserted into the annular cavity 6 that is convexly disposed on the outer side of the lower end of the primary damping rod 1, a circle of annular opening is disposed on the lower side of the annular cavity 6, and the insertion portion of the annular cavity 6 and the secondary damping rod 2 is hermetically disposed, so that the annular cavity 6 encloses a closed chamber; the end part of the secondary damping rod 2 inserted into the annular cavity 6 is provided with a circle of annular ribs 8 protruding in the radial direction, so that the insertion part of the secondary damping rod 2 and the primary damping rod 1 forms a piston cylinder structure consisting of the annular ribs 8 and the annular cavity 6.
In this embodiment, a first damping block 91 and a second damping block 92 are respectively disposed on the upper side wall and the lower side wall of the annular chamber, and both damping blocks are made of a material capable of generating elastic deformation. A certain gap distance is maintained between the first damping block 91 and the second damping block 92 to provide a damping force using elastic deformation of the damping blocks when the annular ribs are moved into contact with the damping blocks. Meanwhile, damping liquid and/or damping gas 11 are filled in the annular cavity 6 at the gap between the two damping blocks so as to provide damping acting force for the movement of the annular rib 8 in the annular cavity 6.
In this embodiment, the damping fluid and/or the damping gas 11 filled in the annular cavity 6 may be air.
Through the device, the insertion position of the primary damping rod 1 and the secondary damping rod 2 forms a piston cylinder structure. Therefore, when mutual axial displacement is generated between the secondary damping rod 2 and the primary damping rod 1, the annular rib 8 provides a buffering damping force under the action of the damping liquid and/or the damping gas 11, so that the piston cylinder filled with the damping liquid and/or the damping gas 11 forms a damping component, and a damping force for limiting the mutual axial displacement of the secondary damping rod and the primary damping rod is provided at the splicing part of the secondary damping rod and the primary damping rod. Simultaneously, respectively establish a damping piece at the both ends of annular chamber to displacement between the shock attenuation pole provides the buffering shock attenuation, avoids the rigid collision between the shock attenuation pole, in order to further promote the life-span of damper.
Similarly, the piston cylinder structure in the embodiment may also be disposed at the joint where the third-level damping rod 3 and the second-level damping rod 2 are inserted into each other, and still provide damping force for the mutual movement between the third-level damping rod 3 and the second-level damping rod 2.
Example 5
As shown in fig. 1, the present embodiment describes a washing machine including a housing, a water cartridge 200 is disposed in the housing, and the water cartridge 200 is supported in the housing by at least one damping member 100 according to any one of embodiments 1 to 4.
In this embodiment, the left and right sides of the lower part of the water container 200 are respectively connected with the base 300 of the washing machine through at least one shock-absorbing member 100, the upper end of the shock-absorbing member 100 is hinged with the lower side of the water container 200, and the lower end of the shock-absorbing member 100 is hinged with the base 300 of the washing machine; preferably, the shock absorbing members 100 on the left and right sides are inclined from top to bottom gradually in a direction away from the axis of the water containing barrel 200 so as to increase the supporting force of the shock absorbing members 100.
In this embodiment, the damping coefficient of the damping structure at the insertion point of the adjacent damping rods on each damping member 100 decreases from the end connected to the water containing barrel 200 of the washing machine to the end connected to the base 300 of the washing machine. Of course, the damping members in the embodiment of the present invention may be reversely installed, and the damping coefficients of the damping structures at the insertion joints of the adjacent damping rods on each damping member 100 are sequentially and incrementally set from the end connected with the water containing barrel 200 of the washing machine to the end connected with the base 300 of the washing machine, so that the damping structure with a lower damping coefficient is only used for damping and buffering when the amplitude of the water containing barrel is smaller, and the damping structure with a larger damping coefficient does not generate a relative stroke, thereby achieving the purposes of reducing the wear of the damping structure and prolonging the service life of the damping member.
In this embodiment, the damping member 100 includes a primary damping rod 1, a secondary damping rod 2, and a tertiary damping rod 3, which are formed by a sleeve structure and are sequentially inserted; the lower extreme of one-level shock attenuation pole 1 inserts from the upper end of second grade shock attenuation pole 2, and the upper end of tertiary shock attenuation pole 3 inserts from the lower extreme of second grade shock attenuation pole 2, and two grafting punishments are equipped with damping member respectively. The upper end of the first-level shock absorption rod 1 is hinged with the water containing barrel 200 of the washing machine, the lower end of the third-level shock absorption rod 3 is hinged with the washing machine base 300, and the damping coefficient of the damping structure at the splicing part of the first-level shock absorption rod 1 and the second-level shock absorption rod 2 is smaller than that at the splicing part of the second-level shock absorption rod 2 and the third-level shock absorption rod 3.
Through the arrangement, in the dewatering starting process of the washing machine, the vibration amplitude of the water containing barrel is large, and at the moment, the damping structures simultaneously provide the buffering displacement for the water containing barrel and reduce the vibration amplitude of the water containing barrel; and in the middle and later periods of the dewatering of the washing machine, the vibration amplitude of the water containing barrel is smaller, and the water containing barrel is only required to be buffered and damped through the damping structure with the damping coefficient alternating low, so that the abrasion of the damping structure is reduced, and the reliability of the device is improved.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A shock absorbing member for a washing machine, comprising: at least three sections of shock absorption rods, wherein the shock absorption rods are sequentially and correspondingly spliced and are connected in series to form a strip shock absorption piece; the inserted parts between the adjacent shock absorption rods are respectively provided with a damping component so as to provide damping force for the relative movement between the two inserted shock absorption rods.
2. The vibration-damping member for washing machine as claimed in claim 1, wherein the damping member is any one or a combination of a damping spring, a damping block, a hydraulic damping structure, and a pneumatic damping structure.
3. A shock-absorbing member for a washing machine as claimed in claim 1 or 2, wherein the shock-absorbing members are coaxially inserted into each other such that the shock-absorbing members are coaxially arranged and form a strip-like shock-absorbing member extending along a straight line.
4. A vibration damping member for a washing machine according to any one of claims 1 to 3, wherein damping coefficients of the damping members at the insertion points of the respective adjacent damping rods are set to be unequal;
preferably, the damping coefficient of the damping component at the insertion position of each adjacent damping rod increases progressively from the connecting end of the damping piece and the drum of the washing machine to the connecting end of the damping piece and the shell of the washing machine.
5. A damping member for a washing machine according to any one of claims 1 to 4, comprising a primary damping rod, a secondary damping rod and a tertiary damping rod which are formed of a sleeve structure and are inserted in sequence; the lower extreme of one-level shock attenuation pole inserts from the upper end of second grade shock attenuation pole, and the upper end of tertiary shock attenuation pole inserts from the lower extreme of second grade shock attenuation pole, and two grafting punishments are equipped with damping member respectively.
6. The damping member for the washing machine as claimed in claim 5, wherein the lower end of the secondary damping rod is provided with an annular protrusion protruding outward, an annular damping block is provided in the annular protrusion, and the upper end of the tertiary damping rod correspondingly passes through the hollow part of the annular damping block;
preferably, the outer diameter of the annular damping block is larger than the inner diameter of the secondary damping rod and is equal to the diameter of the inner wall of the annular bulge, and the inner diameter of the annular damping block is smaller than the inner diameter of the secondary damping rod and is equal to the outer diameter of the upper end of the tertiary damping rod.
7. The damping member for the washing machine according to claim 5, wherein the outer wall of the primary damping rod is provided with a ring-shaped cavity protruding radially outward, the lower end of the ring-shaped cavity is provided with a ring of opening, and the upper end of the secondary damping rod is inserted into the ring-shaped cavity from the opening;
preferably, the upper end of the secondary damping rod is provided with an annular rib which protrudes outwards in the radial direction and is positioned in the annular cavity, and the peripheral diameter of the annular rib is larger than that of the opening;
preferably, the periphery of the annular rib is correspondingly attached and contacted with the inner wall of the annular cavity.
8. The damping member for the washing machine as claimed in claim 6, wherein the damping block capable of generating elastic deformation is filled in the annular cavity, and the annular rib is fixedly inserted in the middle of the damping block;
or the insertion position of the annular cavity gap and the secondary damping rod is sealed, so that the annular cavity is surrounded into a closed cavity; the annular cavity is filled with damping liquid and/or damping gas.
9. The damping member for the washing machine as claimed in claim 5, wherein the upper end of the first-stage damping rod is hinged to the water containing cylinder of the washing machine, and the lower end of the third-stage damping rod is hinged to the casing of the washing machine; or the upper end of the first-level shock absorption rod is hinged with the washing machine shell, and the lower end of the third-level shock absorption rod is hinged with the water containing barrel of the washing machine;
preferably, the upper end of the third-level shock absorption rod penetrates into the cavity of the second-level shock absorption rod from the lower end of the second-level shock absorption rod and penetrates through the hollow part of the annular damping block to stretch into the first-level shock absorption rod, and the diameter of the outer wall of the third-level shock absorption rod is equal to the diameter of the inner wall of the first-level shock absorption rod.
10. A washing machine having a water containing tub mounted in a casing of the washing machine via a damper as claimed in any one of claims 1 to 9.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811547378.8A CN111334983B (en) | 2018-12-18 | 2018-12-18 | Damping piece and washing machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811547378.8A CN111334983B (en) | 2018-12-18 | 2018-12-18 | Damping piece and washing machine |
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| CN111334983B CN111334983B (en) | 2023-08-18 |
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| CN1245551A (en) * | 1996-12-09 | 2000-02-23 | 意大利低碳钢股份公司 | Friction damper for washing machine or the like |
| CN1732298A (en) * | 2003-10-06 | 2006-02-08 | Lg电子株式会社 | Damper in a washing machine and fabricating method of the same |
| KR20100050393A (en) * | 2009-10-16 | 2010-05-13 | 주식회사 썬 프레인 코 | Hydraulic damper |
| CN103925321A (en) * | 2013-01-15 | 2014-07-16 | 海尔集团公司 | Variable damping shock absorber and washing machine provided with same |
| CN203960589U (en) * | 2014-06-18 | 2014-11-26 | 苏州三星电子有限公司 | A kind of pulsator washing machine and derrick rig thereof |
| CN106989129A (en) * | 2017-05-09 | 2017-07-28 | 大连理工大学 | A kind of big displacement eddy current damper |
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2018
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1245551A (en) * | 1996-12-09 | 2000-02-23 | 意大利低碳钢股份公司 | Friction damper for washing machine or the like |
| CN1732298A (en) * | 2003-10-06 | 2006-02-08 | Lg电子株式会社 | Damper in a washing machine and fabricating method of the same |
| KR20100050393A (en) * | 2009-10-16 | 2010-05-13 | 주식회사 썬 프레인 코 | Hydraulic damper |
| CN103925321A (en) * | 2013-01-15 | 2014-07-16 | 海尔集团公司 | Variable damping shock absorber and washing machine provided with same |
| CN203960589U (en) * | 2014-06-18 | 2014-11-26 | 苏州三星电子有限公司 | A kind of pulsator washing machine and derrick rig thereof |
| CN106989129A (en) * | 2017-05-09 | 2017-07-28 | 大连理工大学 | A kind of big displacement eddy current damper |
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| Publication number | Publication date |
|---|---|
| CN111334983B (en) | 2023-08-18 |
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Effective date of registration: 20230718 Address after: Room 221, Sino German Ecological Park Management Committee, No. 2877, Tuanjie Road, Huangdao District, Qingdao, Shandong 266500 Applicant after: QINGDAO HAIER WASHING ELECTRIC APPLIANCES 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 DRUM WASHING MACHINE Co.,Ltd. |
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