Variable-damping vibration reduction component and laundry treatment apparatus

Abstract

Disclosed in the present invention are a variable damping vibration reduction component and a laundry treatment apparatus. The vibration reduction component comprises: a suspension rod; a damping cavity, through which the suspension rod movably passes in an axial direction; and a damping structure, which is sleeved on the suspension rod in the damping cavity, wherein the damping structure is arranged to freely move relative to an inner wall of the damping cavity, an axial length of the damping structure is less than an axial length of the damping cavity, and the damping structure is fixed on the suspension rod when the vibration exceeds a preset amplitude, and moves along the suspension rod under the pressing of the damping cavity to start generating a damping force. According to the present invention, when small-amplitude vibrations occur during high-speed dewatering, etc., no damping force is generated, which reduces the wear of the damping structure, and only a spring can be used for vibration reduction, which avoids resonance; and when large-amplitude vibrations occur when dewatering is started, a damping force is provided for vibration reduction, which reduces vibration noise, and the damping structure can cooperate with the spring for vibration reduction, which prevents the damping structure from being worn by the damping force generated during the whole vibration process and thus improves the applicability of the laundry treatment apparatus under various working conditions.

Description

A variable damping vibration reduction component and clothing treatment equipment Technical Field

[0001] This invention belongs to the field of clothing processing equipment, specifically, it relates to a variable damping vibration reduction component and clothing processing equipment. Background Technology

[0002] During the spin-drying start-up and operation phases of a washing machine, uneven distribution of laundry leading to off-center loading and the strong centrifugal force generated during spin-drying inevitably cause the washing machine's spin-drying drum to shake and resonate. Under this dynamic effect, the outer drum will vibrate and sway significantly as the motor starts, resulting in considerable noise and vibration. If these vibrations and resonances are not effectively suppressed, they can not only cause the entire washing machine to bounce but may also impact the cabinet or trigger safety protection mechanisms, thus affecting the normal operation of the washing machine.

[0003] To address this issue, the washing machine is equipped with specialized vibration damping components mounted on the outer tub's suspension bracket. These components work by flexibly responding to the movement of the outer tub during spin-drying due to motor-driven swaying. Through their unique structural design, the suspension rods within the damping system absorb and disperse the vibration energy generated by the outer tub in different directions. This not only effectively reduces the overall vibration amplitude of the washing machine but also significantly lowers the noise level during operation, ensuring smooth operation and long-term durability during spin-drying.

[0004] Currently, the vibration damping components used in fully automatic washing machines both domestically and internationally employ a combination of damping and spring damping to reduce vibration in the outer tub. During the initial spin-drying stage, the outer tub vibrates significantly, and this combination of damping and spring damping greatly reduces vibration, preventing the outer tub from impacting the machine body. However, during the high-speed spin-drying stage, the outer tub vibrates less. At this time, the damping components, relying solely on damping and spring damping, experience accelerated wear and tear on the damping structure, leading to faster failure of the damping components and causing resonance between the outer tub and the machine body, resulting in increased noise. Existing vibration damping components cannot meet the damping force requirements of pulsator washing machines under various operating conditions.

[0005] In view of this, the present invention is proposed. Summary of the Invention

[0006] The technical problem to be solved by this invention is to overcome the shortcomings of the prior art. The primary objective is to provide a variable damping vibration reduction component that, when small-amplitude vibrations occur during high-speed spin-drying in garment processing equipment, does not generate damping force, reduces wear on the damping structure, and can utilize only springs for vibration reduction, thus avoiding large shaking of the entire machine during spin-drying. When large-amplitude vibrations occur at the start of spin-drying, it provides damping force for vibration reduction, reducing vibration noise. The damping structure and spring can work together for vibration reduction, avoiding the generation of damping force and wear on the damping structure throughout the entire vibration process, thereby improving the applicability of garment processing equipment under various operating conditions.

[0007] A second objective of this invention is to provide a garment processing device.

[0008] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by the present invention is as follows: First, a variable damping vibration reduction component is provided, comprising:

[0009] boom;

[0010] A damping cavity through which the boom is axially movable;

[0011] A damping structure is fitted onto the hanger inside the damping cavity;

[0012] The damping structure is freely movable to the inner wall of the damping cavity. The axial length of the damping structure is less than the axial length of the damping cavity. This is used to fix the damping structure to the rod after the vibration exceeds the preset amplitude, and to move along the rod under the pressure of the damping cavity to start generating damping force.

[0013] Furthermore, the damping structure is pressed and fixed to the outer peripheral wall of the boom;

[0014] When the vibration amplitude is lower than the preset amplitude, the damping cavity moves downward and gradually approaches the damping structure; when the vibration amplitude exceeds the preset amplitude, the damping cavity presses against the damping structure and moves along the suspension rod to generate damping force.

[0015] Furthermore, the shaft hole of the damping structure or the rod diameter of the suspension rod is configured to vary.

[0016] When the vibration amplitude is lower than the preset amplitude, the damping structure moves freely relative to the boom and is then interference-fitted to the boom, with the damping cavity approaching the damping structure; when the vibration amplitude exceeds the preset amplitude, the damping cavity presses against the damping structure and moves along the boom to generate damping force.

[0017] Furthermore, there is a gap between the outer peripheral wall of the damping structure and the inner peripheral wall of the damping cavity, and in the vibration reduction equilibrium state, the damping structure and one axial end of the damping cavity are at a certain distance.

[0018] Preferably, the preset amplitude is greater than or equal to the length difference ΔL between the damping cavity and the damping structure.

[0019] Furthermore, the damping structure includes a mounting bracket and a damping sleeve, which are used to cooperate with the damping cavity to compress the damping sleeve inward; the damping sleeve is disposed inside the mounting bracket, and there is a gap between the mounting bracket and the inner peripheral wall of the damping cavity.

[0020] Furthermore, the damping sleeve is confined within the mounting bracket and is used to pressurize the damping cavity to deform the damping sleeve, thereby cooperating with the compression damping sleeve to deform inward;

[0021] Preferably, the mounting bracket includes a mounting sleeve, the peripheral wall of which is provided with multiple openings, and the two axial ports are provided with limiting portions that abut against the axial end faces of the damping sleeve.

[0022] Furthermore, one end of the damping cavity is provided with a pressing part, which is located on the outer periphery of the shaft hole through which the suspension rod passes within the damping cavity; the pressing part is positioned opposite to the end of the damping structure and at a certain distance, and is used to move the pressing damping structure and the suspension rod to generate frictional damping force.

[0023] Preferably, the pressing part extends inwardly along the shaft hole at one end of the damping cavity;

[0024] More preferably, the area between the pressing part and the shaft hole of the mounting bracket and the damping sleeve is arranged opposite to each other.

[0025] Furthermore, the upper support and lower support of the vibration damping component are press-fitted together to form the damping cavity, and the damping structure is installed in the damping cavity in the lower support in the initial state; the pressing part is disposed in the upper support, and its extension length is less than the extension length of the damping cavity in the upper support.

[0026] Alternatively, the upper support seat of the vibration damping component and the lower support seat press against each other to form a deformation cavity and a damping cavity. The damping structure is disposed in the damping cavity of the upper support seat. The other end of the damping cavity is provided with a support part, which is used to press the damping structure after the deformation cavity is squeezed when the vibration exceeds a preset amplitude.

[0027] Furthermore, the opening of the cavity of the upper support seat and the opening edge of the cavity of the lower support seat are flush to form the damping cavity. The damping structure is installed in the damping cavity of the lower support seat, and there is a certain distance between the upper end of the damping structure and the lower end of the pressing part.

[0028] Alternatively, the bottom of the upper support seat is provided with a downwardly protruding annular wall, which extends into the cavity of the lower support seat to form the damping cavity. A deformation cavity is formed between the outer periphery of the annular wall of the upper support seat and the outer periphery of the cavity opening of the lower support seat. The damping structure is installed in the cavity of the upper support seat, and there is a certain distance between the lower end of the damping structure and the upper end of the support part.

[0029] Furthermore, the lower end of the suspension rod is fixed to the base of the vibration damping component, and the spring of the vibration damping component is clamped between the damping cavity and the base, which is used to dampen vibration when the amplitude is lower than the preset amplitude, and to work together with the damping structure to dampen vibration when the amplitude is higher than the preset amplitude.

[0030] The second invention provides a garment processing device having any of the variable damping vibration reduction components described above.

[0031] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art.

[0032] (1) In the variable damping vibration reduction component of the present invention, when small-amplitude vibrations occur during high-speed dehydration, the damping cavity moves downward but does not press against the damping structure, preventing it from rubbing against the hanger and generating damping force. At this time, vibration reduction can be achieved solely using the spring, avoiding resonance. When large-amplitude vibrations occur at the start of dehydration, the damping cavity moves downward beyond a preset amplitude, pressing against the damping structure and causing it to rub against the hanger, generating damping force. The damping structure and spring work together to reduce vibration. The present invention avoids the generation of damping force and wear on the damping structure throughout the entire vibration process, reduces vibration noise, and improves the applicability of clothing processing equipment under various operating conditions.

[0033] (2) By creating a gap between the damping structure and the damping cavity, the damping structure can move freely within the damping cavity without generating friction or damping force. When the vibration amplitude of the damping component is small, the damping cavity does not press against the damping structure, and no damping force is generated between the damping cavity and the damping structure. This prevents the damping structure from being continuously worn, increasing the service life and performance of the damping structure.

[0034] The specific embodiments of the present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0035] The accompanying drawings, as part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments and descriptions of the invention are used to explain the invention, but do not constitute an undue limitation of the invention. Obviously, the drawings described below are merely some embodiments, and those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings:

[0036] Figure 1 is a schematic diagram of a vibration damping component according to the present invention;

[0037] Figure 2 is a cross-sectional schematic diagram of the DD direction in one state as shown in Figure 1 of the present invention;

[0038] Figure 3 is an enlarged schematic diagram of the structure at point A in Figure 2 of this invention;

[0039] Figure 4 is a cross-sectional schematic diagram of the DD direction in another state as shown in Figure 1 of the present invention;

[0040] Figure 5 is an enlarged schematic diagram of the structure at point B in Figure 4 of this invention;

[0041] Figure 6 is a cross-sectional schematic diagram of another vibration damping component of the present invention;

[0042] Figure 7 is an enlarged schematic diagram of the structure at point C in Figure 6 of this invention;

[0043] Figure 8 is a schematic diagram of a damping structure according to the present invention.

[0044] In the diagram: 1. Damping cavity; 11. Upper support seat; 111. Annular wall; 112. Pressing part; 113. Support plate; 12. Lower support seat; 121. Support part; 13. Deformation cavity; 2. Hanging rod; 3. Damping structure; 31. Mounting bracket; 311. Mounting sleeve; 312. Opening; 313. Limiting part; 32. Damping sleeve; 4. Spring; 5. Base; 6. Mounting seat.

[0045] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the invention in any way, but rather to illustrate the concept of the invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0046] To make the objectives, 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 accompanying drawings. The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0047] In the description of this invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0048] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0049] As shown in Figures 1 to 8, the present invention provides a variable damping vibration reduction component, which includes a suspension rod 2, a damping cavity 1, and a damping structure 3.

[0050] The suspension rod 2 is axially movable through the damping cavity 1. One end of the suspension rod 2 is provided with a mounting base 6, which can be connected to an external component. The damping cavity 1 can be located near the other end of the suspension rod 2. When subjected to vibration, the suspension rod 2 moves relative to the damping cavity 1.

[0051] The damping structure 3 is sleeved on the suspension rod 2 inside the damping cavity 1. The axial extension length of the damping cavity 1 is greater than the axial extension length of the damping structure 3. The damping structure 3 is freely movable relative to the inner wall of the damping cavity 1. This allows the damping structure 3 to be fixed to the suspension rod 2 after the vibration exceeds a preset amplitude, and to begin generating damping force through frictional movement along the suspension rod 2 under the pressure of the damping cavity 1. In other words, no damping force is generated when the vibration is below the preset amplitude, and damping force begins to be generated after the vibration exceeds the preset amplitude.

[0052] The variable damping vibration reduction component of this invention, when generating small-amplitude vibrations such as during high-speed spin-drying, allows the damping cavity 1 to move downwards without pressing against the damping structure 3, preventing it from rubbing against the suspension rod 2 and generating no damping force. In this case, vibration reduction can be achieved solely using the spring 4, avoiding excessive shaking of the entire machine during spin-drying. When large-amplitude vibrations occur at the start of spin-drying, the damping cavity 1 moves downwards beyond a preset amplitude, pressing against the damping structure 3 and causing it to rub against the suspension rod 2, generating damping force. The damping structure 3 and spring 4 then work together to reduce vibration. This invention avoids the generation of damping force and wear on the damping structure 3 throughout the entire vibration process, reducing vibration noise and improving the applicability of clothing processing equipment under various operating conditions.

[0053] The variable damping vibration reduction component can be used for vibration reduction in the connection between different components of clothing processing equipment. Simultaneously, this variable damping vibration reduction component can also be widely used in various equipment requiring vibration reduction, such as automotive suspension systems, mechanical equipment bases, and building vibration isolation devices.

[0054] Preferably, the variable damping vibration reduction component can be applied between the washing machine's cabinet and drum assembly for vibration reduction.

[0055] During washing and spin-drying, the drum assembly vibrates due to uneven distribution of clothes or centrifugal force generated by high-speed rotation. At this time, the spring 4 in the vibration damping component activates, swinging along the spherical surface and sliding up and down along the suspension rod 2 to absorb vibrational energy. When the vibration exceeds a preset amplitude, the damping structure 3, in conjunction with the suspension rod 2, also takes effect, dissipating vibrational energy through frictional damping. In this way, the vibration damping component effectively reduces the vibration and noise of the washing machine, maintaining stable operation.

[0056] One embodiment is that the shaft hole of the damping structure 3 or the rod diameter of the hanger 2 is configured to be variable (not shown in the figure).

[0057] When the shaft hole of the damping structure 3 is a variable diameter shaft hole and the rod 2 is a constant diameter rod: during the process of the damping cavity 1 being vibrated and moving downward, the damping structure 3 moves downward accordingly and also moves freely downward relative to the rod 2 by gravity. At this time, the distance between the damping cavity 1 and the damping structure 3 remains unchanged; as this process continues, the inner diameter of the damping structure 3 becomes smaller and is pressed and fixed with the rod 2 by interference fit; subsequently, the damping cavity 1 continues to move downward, and the distance between it and the damping structure 3 becomes smaller.

[0058] When the shaft hole of the damping structure 3 is a constant diameter shaft hole and the rod 2 is a variable diameter rod: during the process of the damping cavity 1 being vibrated and moving downward, the damping structure 3 moves downward accordingly and also moves freely downward relative to the rod 2 by gravity. At this time, the distance between the damping cavity 1 and the damping structure 3 remains unchanged; as this process continues, the diameter of the rod 2 increases and is pressed and fixed with the damping structure 3; subsequently, the damping cavity 1 continues to move downward, and the distance between it and the damping structure 3 decreases.

[0059] Another implementation is that the damping structure 3 is pressed and fixed to the outer peripheral wall of the rod 2.

[0060] When the vibration amplitude is lower than the preset amplitude, the damping cavity 1 moves downward and gradually approaches the damping structure 3. When the vibration amplitude exceeds the preset amplitude, the damping cavity 1 presses against the damping structure 3, causing it to move along the suspension rod 2 to generate damping force.

[0061] Furthermore, a gap exists between the outer peripheral wall of the damping structure 3 and the inner peripheral wall of the damping cavity 1. This gap allows the damping structure 3 to move freely within the damping cavity 1 without generating friction or damping force. When the vibration amplitude of the damping component is small, the damping cavity 1 does not press against the damping structure 3, and no damping force is generated between them. This prevents continuous wear on the damping structure 3, increasing its service life and effectiveness.

[0062] Furthermore, the preset amplitude is greater than or equal to the length difference ΔL between the damping cavity 1 and the damping structure 3.

[0063] In the vibration state, when the vibration amplitude is less than or equal to the length difference between the damping cavity 1 and the damping structure 3, the upper end of the damping cavity 1 moves downward and approaches the damping structure 3, at which time the spring 4 of the damping component performs vibration damping; when the vibration amplitude is greater than the length difference ΔL between the damping cavity 1 and the damping structure 3 (as shown in Figures 4 to 5), the spring 4 of the damping component and the upper end of the damping cavity 1 press against the damping structure 3, causing it to move and generate damping force to perform vibration damping.

[0064] In the initial state (as shown in Figures 1, 3, 6, and 7), the vibration damping component is unloaded, and the distance between one end of the damping structure 3 and the damping cavity 1 is at its maximum, which is ΔL.

[0065] In the vibration reduction equilibrium state, including the case of water balance in the bucket assembly or no water balance in the bucket, the damping structure 3 and the upper end of the damping cavity 1 maintain a certain distance, which is less than the preset amplitude, that is, less than ΔL.

[0066] The spring 4 of the damping component can be a single spring or multiple springs, such as one spring 4 on the inner side and one on the outer side of the damping cavity 1, so as to provide a better damping effect after being subjected to vibration.

[0067] One installation scheme for the vibration damping component is as follows: the upper end of the suspension rod 2 is suspended from the washing machine casing, and the lower end of the suspension rod 2 is fitted with the base 5 of the vibration damping component. The spring 4 of the vibration damping component is sandwiched between the lower end of the damping cavity 1 and the base 5. The upper end of the damping cavity 1 movably supports the tub assembly. The above installation scheme is merely one embodiment installed on the washing machine casing and is not intended to limit the invention. Other improvements, such as increasing the number of springs 4 or arranging multiple springs in series or parallel to change the vibration damping effect, are also within the scope of protection of this invention.

[0068] When the barrel assembly vibrates under eccentric load, the barrel assembly moves downward against the damping cavity 1, and the spring 4 is compressed to reduce vibration. When the vibration amplitude is greater than the preset amplitude, the spring 4 continues to be compressed to reduce vibration, and the barrel assembly moves downward against the damping cavity 1 beyond ΔL. The damping structure 3 rubs against the hanger 2 to generate damping force, which together reduces vibration.

[0069] As shown in Figures 2 to 8, the damping structure 3 includes a mounting bracket 31 and a damping sleeve 32 (see Figure 8). The mounting bracket 31 is fixedly sleeved on the outer periphery of the damping sleeve 32, and there is a gap between the mounting bracket 31 and the inner peripheral wall of the damping cavity 1 to ensure free movement between the damping structure 3 and the damping cavity 1.

[0070] The damping sleeve 32 is confined within the mounting bracket 31. The damping cavity 1 pressurizes the damping sleeve 32. When the damping cavity 1 causes the damping sleeve 32 to deform, the mounting bracket 31 restricts the deformation of the damping sleeve 32 to the outer periphery and, in conjunction with the compression of the damping sleeve 32 to deform inward, enhances the adhesive force between the damping sleeve 32 and the hanger 2.

[0071] Preferably, the mounting bracket 31 includes a mounting sleeve 311, and the damping sleeve 32 is located inside the mounting sleeve 311. The mounting sleeve 311 has multiple openings 312 on its peripheral wall, and two axial ports have inwardly protruding limiting portions 313. The limiting portions 313 abut against the axial end faces of the damping sleeve 32 to prevent the damping sleeve 32 from dislodging from the mounting sleeve 311.

[0072] The openings 312 are evenly spaced along the circumferential direction on the peripheral wall of the mounting sleeve 311 so that the constraint force provided by the peripheral wall is uniform and stable.

[0073] The limiting part 313 abuts against the axial end face of the damping sleeve 32.

[0074] Preferably, the mounting sleeve 311 is cylindrical, and the shape of the damping cavity 1 that moves in conjunction with the mounting sleeve 311 matches each other.

[0075] Furthermore, a pressing part 112 is provided at one axial end of the damping cavity 1, that is, at the upper end of the damping cavity 1. The pressing part 112 can be configured according to the structure of different vibration damping components; it can be arranged to protrude inward or not, and it can be pressed by the inner wall of the end of the damping cavity 1. The pressing part 112 is located on the outer periphery of the shaft hole through which the suspension rod 2 passes within the damping cavity 1.

[0076] The pressing part 112 is disposed opposite to the axial end of the damping structure 3, and is used to press the damping structure 3 to generate frictional damping force as it moves on the rod 2.

[0077] The pressing part 112 is disposed opposite to the area between the mounting bracket 31 and the shaft hole of the damping sleeve 32. Preferably, the pressing part 112 is disposed opposite to the damping sleeve 32 between the limiting part 313 and the shaft hole, which enables precise pressing.

[0078] When the vibration exceeds the preset amplitude, initially the pressing part 112 pushes the damping sleeve 32 to move, generating friction. When the pressing is further applied, the pressing part 112 presses the damping sleeve 32 to deform within the mounting bracket 31 and squeeze the hanger 2 inward, further increasing the friction between the part and the hanger 2 and generating a greater viscous damping force.

[0079] One specific implementation is shown in Figures 2 to 5, where the upper support 11 and lower support 12 of the vibration damping component are press-fitted together to form the damping cavity 1. The pressing part 112 is disposed within the upper support 11.

[0080] The pressing part 112 is provided to protrude inward along the shaft hole at one end of the damping cavity 1, and its extension direction is axial.

[0081] The pressing part 112 of the present invention extends inward along the shaft hole of the upper support 11 for a certain length, so that the suspension rod 2 can pass through. This can prevent the damping cavity 1 and the suspension rod 2 from tilting during use, and prevent friction, interference, and abnormal noise.

[0082] The pressing part 112 is a plurality of pressing plates spaced apart along the circumferential edge of the shaft hole, or the pressing part 112 is a pressing cylinder.

[0083] The damping structure 3 is initially installed in the damping cavity 1 within the lower support 12. The damping structure 3 may be completely located within the damping cavity 1 within the lower support 12, or it may protrude slightly from the damping cavity 1 within the lower support 12.

[0084] The extension length of the pressing part 112 is less than the extension length of the damping cavity 1 in the upper support 11. In the initial state, there is a certain distance ΔL between the pressing part 112 and the damping structure 3.

[0085] Preferably, the upper support 11 is a spherical seat. The bottom of the spherical seat is fastened to the top of the lower support 12.

[0086] The bottom of the upper support 11 is provided with an annular wall 111, which abuts against the outer periphery of the opening of the cavity of the lower support 12. The inner wall of the annular wall 111 is flush with the inner wall of the opening of the cavity of the lower support 12, together forming the damping cavity 1. There is a certain distance between the lower end of the pressing part 112 and the lower end of the annular wall 111.

[0087] The annular wall 111 is disposed on the bottom wall of the spherical seat and abuts against the upper part of the lower support 12. The extension length of the abutting part 112 is less than the extension length of the annular wall 111. In particular, the distance between the lower end of the abutting part 112 and the lower end of the annular wall 111 is ΔL.

[0088] Another specific implementation is shown in Figures 6 and 7, where the upper support 11 and the lower support 12 of the vibration damping component press against each other to form a deformation cavity 13 and a damping cavity 1. The damping structure 3 is disposed in the damping cavity 1 of the upper support 11.

[0089] A support portion 121 is provided on the outer periphery of the shaft hole at the other end of the damping cavity 1. When the upper support seat 11 vibrates to a preset amplitude, the upper and lower ends of the damping structure 3 just come into contact with the pressing portion 112 and the support portion 121. After the vibration exceeds the preset amplitude, the deformation cavity 13 is squeezed and deformed, and the pressing portion 112 and the support portion 121 cooperate to squeeze the damping structure 3 to deform, thereby enhancing the adhesive force between the damping structure 3 and the suspension rod 2.

[0090] The bottom of the upper support 11 has a downwardly protruding annular wall 111, which extends into the cavity of the lower support 12 to form the damping cavity 1. In the initial state, the end of the annular wall 111 is a certain distance from the bottom wall of the cavity of the lower support 12. The extension length of the annular wall 111 is less than the extension length of the cavity inside the lower support 12.

[0091] A deformation cavity 13 is formed between the bottom wall of the annular wall 111 of the upper support 11 and the outer periphery of the cavity opening of the lower support 12. The damping structure 3 is installed in the cavity within the annular wall 111. In the initial state, there is a certain distance between the lower end of the damping structure 3 and the upper end of the support 121.

[0092] When the bottom wall of the upper support 11 is vibrated and moves downward, it presses against the lower support 12, causing the bottom wall of the upper support 11 to deform. At this time, the axial length of the deformation cavity 13 decreases, and the pressing part 112 inside the annular wall 111 moves further downward, pushing the damping structure 3 to press against the support part 121, so that the damping structure 3 is further squeezed and deformed.

[0093] The pressure part 112 is the inner wall of the outer periphery of the shaft hole at one axial end of the damping cavity 1.

[0094] The upper support 11 is a spherical seat. The cover of the spherical seat is fastened to the top outer periphery of the lower support 12, and cooperates with the annular wall 111 and the outer periphery of the top opening of the lower support 12 to form a deformation cavity 13. When the spherical seat is squeezed by an external force against the lower support 12, the cover will flatten.

[0095] Preferably, the cover of the spherical seat is umbrella-shaped.

[0096] The support portion 121 is disposed on the outer periphery of the shaft hole within the cavity of the lower support base 12. The support portion 121 is disposed vertically opposite to the damping structure 3, located inside the downward projection of the annular wall 111. The support portion 121 may have multiple plates spaced apart along the circumferential edge of the shaft hole, or the support portion 121 may be cylindrical.

[0097] The upper support seat 11 extends along the shaft hole into its inner wall and is recessed to provide a clearance space. When the upper support seat 11 is vibrated and pressed downward against the upper support seat 11, it facilitates the deformation of the seat cover of the upper support seat 11.

[0098] Furthermore, the lower end of the suspension rod 2 is fixed to the base 5 of the vibration damping component, and the spring 4 is clamped between the lower support 12 and the base 5. When the vibration amplitude is lower than the preset amplitude, the spring 4 performs vibration damping; when the vibration amplitude is higher than the preset amplitude, the spring 4 and the damping structure 3 work together to perform vibration damping.

[0099] The upper support base 11 has a protruding mounting post that movably passes through the mounting structure of the bucket assembly. Furthermore, the upper support base 11 has a support plate 113 on its upper part, which can be sleeved and fixed to the bottom outer periphery of the mounting post. A limiting plate is provided on the hanging rod 2 above the mounting post to ensure that the mounting structure of the bucket assembly is securely clamped between the support plate 113 and the limiting plate.

[0100] The present invention also provides a garment processing device having any of the variable damping vibration reduction components described above.

[0101] Preferably, the clothing processing equipment is a fully automatic washing machine, which includes a cabinet, a tub assembly disposed within the cabinet, a drive component, and an inlet / drainage component, etc. The tub assembly has its opening facing upwards, and the variable damping vibration reduction component suspends the tub assembly within the cabinet. The tub assembly includes an outer tub and an inner tub rotatably installed within the outer tub, and clothing is placed in the inner tub for washing.

[0102] The inner tub contains a rotatable pulsator. By controlling the rotation of the pulsator, the water flow is agitated and the clothes are tumbled for washing. During spin-drying, the inner tub and the pulsator are controlled to rotate together at high speed in the same direction. Furthermore, during the washing process, the inner tub and the pulsator can also be controlled to rotate in opposite directions.

[0103] The washing machine casing is provided with a hanger mounting seat that mates with the hanger rod and is connected to the mounting seat at the upper end of the hanger rod. Generally, the hanger mounting seat is a corner plate located between the corners of two adjacent side walls of the casing. The outer tub peripheral wall is provided with a hanger suspension part near the lower part, which mates with one end of the damping cavity.

[0104] Of course, the connection positions of the two ends of the vibration damping component on the washing machine can also be interchanged.

[0105] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present invention. The implementation schemes in the above embodiments can also be further combined or replaced. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A variable-damping vibration-reducing member characterized by comprising: The variable damping vibration reduction component comprises: a hanger rod; a damping cavity, the hanger rod being axially movably arranged in the damping cavity; a damping structure, the damping structure being arranged on the hanger rod in the damping cavity; the damping structure and the damping cavity are freely movable, the axial length of the damping structure being less than the axial length of the damping cavity, so that the damping structure is fixed on the hanger rod when the vibration exceeds the preset amplitude, and the damping force is generated by the damping structure moving along the hanger rod under the pressure of the damping cavity.

2. The variable damping vibration reduction component according to claim 1, wherein: the damping structure is extruded and fixed on the outer circumferential wall of the hanger rod; when the vibration amplitude is less than the preset amplitude, the damping cavity moves downward and gradually approaches the damping structure; when the vibration amplitude exceeds the preset amplitude, the damping cavity presses against the damping structure to generate the damping force by moving along the hanger rod.

3. The variable damping vibration reduction component according to claim 1, wherein: the axial hole of the damping structure or the diameter of the hanger rod is variable; when the vibration amplitude is less than the preset amplitude, the damping structure is free to move relative to the hanger rod and is then fixed on the hanger rod with interference, and the damping cavity approaches the damping structure; when the vibration amplitude exceeds the preset amplitude, the damping cavity presses against the damping structure to generate the damping force by moving along the hanger rod.

4. The variable damping vibration reduction component according to any one of claims 1-3, wherein: there is a gap between the outer circumferential wall of the damping structure and the inner circumferential wall of the damping cavity, and the damping structure is a certain distance from one end of the damping cavity in the balanced state of vibration reduction. Preferably, the preset amplitude is greater than or equal to the length difference ΔL of the damping cavity and the damping structure.

5. The variable damping vibration reduction component according to any one of claims 1-4, wherein: the damping structure comprises a mounting frame and a damping sleeve, the damping sleeve being arranged in the mounting frame, and there is a gap between the mounting frame and the inner circumferential wall of the damping cavity. Preferably, the mounting frame comprises a mounting sleeve, a plurality of openings are arranged on the circumferential wall of the mounting sleeve, and limit portions are arranged in the two axial ports to abut against the axial end face of the damping sleeve.

6. The variable damping vibration reduction component according to claim 5, wherein: one end of the damping cavity is provided with a pressing portion, and the outer circumferential wall of the axial hole arranged in the damping cavity for the hanger rod to pass through; the pressing portion is arranged opposite to the end portion of the damping structure with a certain distance, for moving to press against the damping structure and generating the friction damping force by moving along the hanger rod; Preferably, the pressing portion is arranged to protrude inwardly and extend along the axial hole of one end of the damping cavity. More preferably, the pressing portion is arranged opposite to the region between the axial hole of the mounting frame and the damping sleeve.

7. The variable damping vibration reduction component according to claim 6, wherein: the upper support seat and the lower support seat of the vibration reduction component are abuttingly connected to form the damping cavity, the damping structure is arranged in the damping cavity in the lower support seat in the initial state, the pressing portion is arranged in the upper support seat, and the extension length of the damping cavity in the upper support seat is less than the pressing portion. Or, the upper support seat of the damping component is in abutting fit with the lower support seat to form a deformation cavity and a damping cavity, the damping structure is arranged in the damping cavity of the upper support seat, and the other end of the damping cavity is provided with a support portion which is in abutting fit with the abutting portion to extrude the damping structure after the deformation cavity is extruded when the vibration exceeds the preset amplitude.

8. The variable-damping damping component according to claim 7, wherein, the opening of the concave cavity of the upper support seat is in flush fit with the opening edge of the concave cavity of the lower support seat to form the damping cavity, the damping structure is arranged in the damping cavity in the lower support seat, and the upper end of the damping structure is a certain distance from the lower end of the abutting portion; or, the bottom of the upper support seat is provided with a downwardly protruding annular wall which extends into the concave cavity of the lower support seat to form the damping cavity, the deformation cavity is formed between the outer periphery of the annular wall of the upper support seat and the outer periphery of the opening of the concave cavity of the lower support seat, the damping structure is arranged in the concave cavity in the upper support seat, and the lower end of the damping structure is a certain distance from the upper end of the support portion.

9. The variable-damping damping component according to any one of claims 1-8, wherein, the lower end of the boom is fixed on the base of the damping component, and the spring clamp of the damping component is arranged between the damping cavity and the base to be used for spring damping when the vibration is lower than the preset amplitude and to be used for damping together with the damping structure when the vibration is higher than the preset amplitude. 10.A laundry treating apparatus, characterized by, The variable-damping damping component according to any one of claims 1-9.

Images