Flexible variable-damping vibration attenuation component and clothes treatment equipment

Abstract

The utility model discloses a flexible variable-damping vibration attenuation component and clothes processing equipment. The vibration attenuation component comprises a hanging rod, a connecting rod and a connecting rod, the suspension rod is axially and movably arranged in the damping cavity in a penetrating manner; the damping structure is arranged on the suspender in the damping cavity in a sleeving manner; a diffusion part is arranged at one axial end of the damping structure and used for deforming to disperse the abutting force of the damping cavity to the outer side of the periphery of the suspender when vibration is lower than the preset amplitude, and the diffusion part abuts against the damping structure to deform to be matched with the suspender to generate damping force after vibration exceeds the preset amplitude. According to the utility model, the diffusion part is arranged on the damping structure, so that unnecessary damping force generated under low-amplitude vibration is effectively avoided, the abrasion of the damping structure is reduced, and the problem of resonance between the outer cylinder and the box body caused by low-amplitude vibration in a specific operation such as a high-speed dehydration stage is prevented.

Description

Technical Field

[0001] The utility model belongs to the field of clothing treatment equipment, and specifically relates to a variable damping vibration reduction component and a clothing treatment equipment. Background Art

[0002] During the dehydration start-up and operation stages of a washing machine, due to the uneven distribution of the laundry resulting in an off-load phenomenon and the strong centrifugal force generated during dehydration, the dehydration tub of the washing machine will inevitably experience shaking and resonance phenomena. Under this dynamic action, the outer tub will generate significant vibration and sway with the start of the motor, thereby causing a large amount of noise and a sense of vibration. If these vibrations and resonances cannot be effectively suppressed, it will not only cause the overall jumping of the washing machine, but may also impact the cabinet or trigger the safety protection mechanism, thus affecting the normal operation of the washing machine.

[0003] To solve this problem, special vibration reduction components are designed inside the washing machine, and these components are installed on the suspension seats of the outer tub of the washing machine. Its function is that when the outer tub sways or shakes due to the drive of the motor during dehydration, the suspension rods in the vibration reduction components can flexibly respond to these movements, and through their unique structural design, absorb and disperse the vibration energy generated by the outer tub in different directions. In this way, not only the overall vibration amplitude of the washing machine is effectively reduced, but also the noise level during operation is significantly reduced, ensuring the smooth operation and long-term durability of the washing machine during dehydration.

[0004] At present, the vibration reduction components used in domestic and foreign fully automatic washing machines perform vibration reduction of the outer tub through damping vibration reduction in cooperation with spring vibration reduction. At the initial stage of dehydration, the vibration of the outer tub is large, and the vibration reduction component that combines damping vibration reduction with spring vibration reduction can greatly reduce the vibration and prevent the outer tub from hitting the cabinet. However, at the high-speed dehydration stage, the vibration of the outer tub is small. At this time, if the vibration reduction component combines damping vibration reduction with spring vibration reduction, it will cause the damping structure to wear out faster, resulting in the faster failure of the vibration reduction component, leading to resonance between the outer tub and the cabinet and an increase in noise. The existing vibration reduction components cannot meet the requirements for the damping force under various working conditions of the pulsator washing machine.

[0005] In view of this, the present utility model is specifically proposed. Content of the Utility Model

[0006] The technical problem to be solved by the present utility model is to overcome the deficiencies of the prior art. The first object is to provide a flexible variable damping vibration reduction component, by providing a diffusion part on the damping structure, to effectively solve the unnecessary damping force generated under low-amplitude vibrations, thereby slowing down the wear of the damping structure and preventing the resonance between the outer cylinder and the cabinet caused by low-amplitude vibrations during specific operations such as the high-speed dehydration stage.

[0007] The second object of the present utility model is to provide a clothing treatment equipment.

[0008] To solve the above technical problems, the basic concept of the technical solution adopted by the present utility model is: First, provide a flexible variable-damping vibration damping component, including:

[0009] A suspension rod;

[0010] A damping cavity, and the suspension rod axially movably penetrates through the damping cavity;

[0011] A damping structure, sleeved on the suspension rod in the damping cavity;

[0012] One axial end of the damping structure has a diffusion part, which is used to disperse the pressing force of the damping cavity to the outer side of the outer circumference of the suspension rod when the vibration is lower than a preset amplitude. After the vibration exceeds the preset amplitude, the diffusion part presses against the deformation of the damping structure and cooperates with the suspension rod to generate a damping force.

[0013] Further, the damping structure includes a damping sleeve, and the diffusion part is elastically arranged on one end face of the damping sleeve. After the vibration exceeds the maximum compression distance of the diffusion part, the damping cavity presses against the diffusion part and the damping sleeve to move and / or deform, generating a damping force with the suspension rod.

[0014] Further, the diffusion part is spaced and protrudingly arranged on one axial end face of the damping sleeve;

[0015] The area of the diffusion part arranged on the outer ring end of the damping sleeve is larger than the area arranged on the inner ring end of the damping sleeve.

[0016] Further, the protruding height of the diffusion part is gradually increased from the inner ring side to the outer ring side of the damping sleeve, and the damping cavity presses against the outer ring end of the diffusion part.

[0017] Further, the inner ring side wall of the diffusion part extends obliquely upward from the inside to the outside to be lower than the top wall of the diffusion part, and the top wall is arranged close to the outer ring side; the outer ring side wall of the diffusion part extends obliquely upward from the outside to the inside to the top wall;

[0018] The first side wall and the second side wall connecting the inner ring side wall and the outer ring side wall of the diffusion part extend obliquely upward to connect with the top wall; the first side wall and the second side wall between the inner ring side wall and the top wall are connected to each other;

[0019] The damping cavity presses against the top wall of the diffusion part.

[0020] Further, on the end of the damping cavity opposite to the diffusion part, there is a pressing part, which is arranged on the outer circumference of the shaft hole for the suspension rod to penetrate in the damping cavity, and the pressing part is located radially outside the inner peripheral wall of the damping sleeve; at least part of the pressing part is arranged opposite to the diffusion part for pressing against the diffusion part.

[0021] Further, the upper support seat and the lower support seat of the damping component are in pressing fit connection to form the damping cavity. The damping sleeve is installed in the damping cavity in the lower support seat, and the diffusion part protrudes outside the lower support seat. The pressing part is arranged in the upper support seat and is in contact with the diffusion part, and is used for pressing the diffusion part to compress more than a preset amplitude and then pressing the damping sleeve to move on the suspension rod to generate a damping force.

[0022] Alternatively, the upper support seat and the lower support seat of the damping component are in pressing fit to form a deformation cavity and a damping cavity. The damping sleeve and the diffusion part are arranged in the damping cavity of the upper support seat. A support part is arranged in the lower support seat, and after the vibration exceeds a preset amplitude and squeezes the deformation cavity, the pressing part and the support part cooperate to squeeze the diffusion part and the damping sleeve to deform and generate a viscous damping force on the suspension rod.

[0023] Further, the pressing part includes an annular pressing plate and an extension plate. The annular pressing plate is arranged on the outer periphery of the shaft hole of the upper support seat passing through the suspension rod, and the extension plate extends radially outward from the annular pressing plate at intervals.

[0024] Part of the annular pressing plate presses on the top wall of the diffusion part, and there is a certain distance in the radial direction between the inner wall of the shaft hole of the damping sleeve. The extension plate presses on the outer ring end of the top wall of the diffusion part.

[0025] Further, the opening of the concave cavity of the upper support seat is flush with the edge of the opening of the concave cavity of the lower support seat to form the damping cavity. The damping structure is installed in the damping cavity in the lower support seat and is in contact with the bottom wall of the damping cavity. When the preset amplitude is reached, there is a certain distance between the lower end of the damping structure and the lower end of the damping cavity.

[0026] Alternatively, the bottom of the upper support seat is provided with a downwardly protruding annular wall. The annular wall extends into the concave cavity of the lower support seat to cooperate 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 opening of the concave cavity of the lower support seat. The damping structure is installed in the concave cavity of the upper support seat, and after the preset amplitude is reached, the damping structure is squeezed between the pressing part and the support part.

[0027] The second aspect of the present invention provides a laundry treatment device having the flexible variable damping vibration damping component described in any one of the above.

[0028] After adopting the above technical solutions, the present invention has the following beneficial effects compared with the prior art.

[0029] The flexible variable-damping vibration reduction component of the present utility model, when small-amplitude vibrations occur during high-speed dehydration or the like, the extrusion diffusion part deforms, dispersing the resisting force to the outer side of the outer circumference of the suspension rod, so that the main structure of the damping structure does not bear the resisting force or bears a negligible resisting force, thus not deforming inward to generate viscous damping force with the suspension rod, reducing the wear of the damping structure, and only using the spring for vibration reduction, avoiding large dehydration jitter of the whole machine; when large-amplitude vibrations occur at the start of dehydration or the like, after the diffusion part is deformed to the maximum, it presses against the main part of the damping structure below it, causing it to deform inward under the cooperation of the damping cavity, providing damping force for vibration reduction, reducing the vibration noise, and enabling the damping structure and the spring to cooperate for vibration reduction together, avoiding wearing the damping structure during the entire vibration process, and improving the applicability of the clothing treatment equipment under various working conditions.

[0030] The following further describes in detail the specific embodiments of the present utility model with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The accompanying drawings, as a part of the present utility model, are used to provide a further understanding of the present utility model. The schematic embodiments and descriptions thereof of the present utility model are used to explain the present utility model, but do not constitute an improper limitation of the present utility model. Obviously, the accompanying drawings in the following description are only some embodiments, and those of ordinary skill in the art can obtain other drawings based on these drawings without creative efforts. In the drawings:

[0032] Figure 1 is a schematic diagram of a flexible vibration reduction component of the present utility model;

[0033] Figure 2 is of the present utility model Figure 1 a schematic cross-sectional view;

[0034] Figure 3 is of the present utility model Figure 2 an enlarged schematic view of the structure at A in;

[0035] Figure 4 is a schematic diagram of an upper support seat of the present utility model;

[0036] Figure 5 is a schematic diagram of a damping structure of the present utility model;

[0037] Figure 6 is of the present utility model Figure 1 another schematic cross-sectional view;

[0038] Figure 7 is of the present utility model Figure 6 an enlarged schematic view of the structure at B in.

[0039] In the figure: 1. Damping chamber; 11. Upper support base; 111. Annular wall; 112. Pressing part; 1121. Annular pressing plate; 1122. Extension plate; 113. Support plate; 12. Lower support base; 121. Supporting part; 13. Deformation chamber; 2. Suspension rod; 3. Damping structure; 31. Diffusion part; 32. Damping sleeve; 4. Spring; 5. Base; 6. Mounting seat.

[0040] It should be noted that these drawings and textual descriptions are not intended to limit the scope of the concept of the present utility model in any way, but rather to illustrate the concept of the present utility model to those skilled in the art by reference to specific embodiments. Detailed implementation manners

[0041] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. The following embodiments are used to illustrate the present utility model but are not intended to limit the scope of the present utility model.

[0042] In the description of the present utility model, it should be noted that the orientation or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0043] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0044] As Figures 1 to 7 shown, the present utility model provides a variable-damping vibration damping component, which can be used for vibration damping connection between the outer cylinder and the box body of a laundry treatment device.

[0045] The vibration damping component includes a suspension rod 2, a damping chamber 1, and a damping structure 3.

[0046] The suspension rod 2 is axially movably inserted through the damping cavity 1. One end of the suspension rod 2 is provided with a mounting seat 6, which can be connected to an external component. The damping cavity 1 can be sleeved on the other end close to the suspension rod 2. When vibration occurs, the suspension rod 2 moves relative to the damping cavity 1. The suspension rod 2 can be used as a rigid component connecting the outer cylinder and the box body to bear and transmit vibration loads.

[0047] The damping structure 3 is sleeved on the suspension rod 2 inside the damping cavity 1. The other end face of the damping structure 3 can be in contact with the inner wall of the damping cavity 1. The damping cavity 1 has the function of restricting the movement of the damping structure 3 and providing a vibration transmission path.

[0048] One axial end of the damping structure 3 has a protruding diffusion part 31. The diffusion part 31 has elasticity and dispersibility. When the vibration is lower than the preset amplitude, the diffusion part 31 disperses the pressing force of the damping cavity 1 to the outer side of the outer circumference of the suspension rod 2, and does not cooperate with the suspension rod 2 to generate a damping force or generates a negligible damping force. After the vibration exceeds the preset amplitude, the diffusion part 31 presses the main body of the damping structure 3 to deform, and cooperates with the suspension rod 2 to generate a damping force. The damping structure 3 is a damping element made of a highly elastic and wear-resistant material, and absorbs vibration energy through deformation.

[0049] When the laundry treating device is in a low-amplitude vibration state (such as the initial stage of washing or the slight shaking stage), due to the small amplitude, the contact pressure between the diffusion part 31 and the inner wall of the damping cavity 1 is small. At this time, the diffusion part 31 deforms, so that the pressing force can be dispersed to the outer side of the outer circumference of the suspension rod 2, rather than directly acting on the main body part of the damping structure 3, and the diffusion part 31 does not press the suspension rod 2 inward, thereby reducing the generation of unnecessary damping force. This design effectively reduces the wear of the damping structure 3 and extends the service life.

[0050] As the vibration amplitude increases, the pressure received by the diffusion part 31 gradually increases. After the vibration exceeds the preset amplitude, the diffusion part 31 begins to press the main body of the damping structure 3, causing it to undergo controllable deformation. This deformation and the close cooperation with the suspension rod 2 generate a significant damping force, effectively absorbing the vibration energy, preventing the vibration phenomenon between the outer cylinder and the box body of the laundry treating device, and ensuring the stable operation of the device.

[0051] The upper end of the suspension rod 2 is fixed on the box body, the lower end of the suspension rod 2 is fixed on the base 5 of the damping component, and the spring 4 of the damping component is clamped between the lower end of the damping cavity 1 and the base 5. The outer cylinder is loaded on the upper end of the damping cavity 1.

[0052] Further, the damping structure 3 includes a damping sleeve 32, and the diffusion part 31 is elastically arranged on one end face of the damping sleeve 32. After the vibration exceeds the maximum compression distance of the diffusion part 31, the damping cavity 1 presses against the diffusion part 31 and the damping sleeve 32 to move and / or deform, generating a damping force between the damping structure 3 and the suspension rod 2.

[0053] In one implementation, a certain gap is maintained between the damping sleeve 32 and the inner peripheral wall of the damping cavity 1. When the outer cylinder vibrates, the diffusion part 31 is compressed, and there is an axial distance between the other end of the damping structure 3 and the damping cavity 1; when the vibration exceeds the preset amplitude, the damping structure 3 is pressed and moves axially within the damping cavity 1. During the movement, a frictional force is generated between the damping structure 3 and the suspension rod 2, thereby generating a damping force.

[0054] In another implementation, the damping sleeve 32 is closely attached to the inner peripheral wall of the damping cavity 1, or there is no gap between the damping sleeve 32 and the inner wall of the damping cavity 1. When the vibration of the outer cylinder exceeds the preset amplitude, the damping structure 3 is squeezed and undergoes radial elastic deformation. During this deformation process, internal stress is generated within the damping structure 3 to tightly hold the suspension rod 2 inward, thereby generating a damping force.

[0055] In yet another implementation, a certain gap is maintained between the damping sleeve 32 and the inner peripheral wall of the damping cavity 1. When the vibration of the outer cylinder exceeds the preset amplitude, the damping structure 3 moves axially within the damping cavity 1. During the movement, a frictional force is generated between the damping structure 3 and the suspension rod 2, thereby generating a damping force. When the vibration amplitude further increases, both ends of the damping cavity 1 axially cooperate to squeeze both ends of the damping structure 3 to cause radial deformation, thereby generating a damping force with the suspension rod 2.

[0056] The diffusion part 31 is spaced and protrudingly arranged on one axial end face of the damping sleeve 32, providing space for the deformation of the diffusion part 31. The area of the diffusion part 31 arranged at the outer ring end of the damping sleeve 32 is larger than the area arranged at the inner ring end of the damping sleeve 32.

[0057] The protruding height of the diffusion part 31 is gradually increased from the inner ring side to the outer ring side of the damping sleeve 32, and the damping cavity 1 presses against the outer ring end of the diffusion part 31.

[0058] The diffusion part 31 is in a shape such as conical, serrated, trumpet-shaped, arc-shaped or wavy, and its outer diameter gradually increases or decreases until it contacts or approaches the inner wall of the damping cavity 1. The connection method between the diffusion part 31 and the damping sleeve 32 can adopt methods such as adhesion, inlay or integral molding to ensure the stability of its connection and the exertion of elastic performance.

[0059] The inner ring end of the diffusion part 31 is nearly flush with the inner peripheral wall of the damping sleeve 32, or has a certain distance from the inner peripheral wall of the damping sleeve 32.

[0060] The diffusion part 31 of the present utility model is provided on the end face at one axial end of the damping sleeve 32 at intervals and protrudes, and its area gradually increases from the inner ring end to the outer ring end of the damping sleeve 32, and at the same time, the protruding height also gradually increases from the inner ring side to the outer ring side. This setting of the diffusion part 31 cleverly realizes the dispersion of the pressure generated by vibration or impact to the outside, effectively avoiding the unnecessary damping force caused by inward deformation and extrusion of the suspension rod 2, thereby reducing the stress burden on the suspension rod 2 and prolonging its service life.

[0061] In addition, by mainly dispersing the pressure to the outside, the direct vertical transmission of the counterpressure to the main body part of the damping structure 3 is also avoided, reducing the wear and deformation of the main body part during low-amplitude vibration, and improving the overall stability and durability of the damping structure 3. This setting can effectively disperse the counterpressure during low-amplitude vibration, and also enables the damping structure 3 to respond more precisely to high-amplitude vibration.

[0062] Furthermore, the inner ring side wall of the diffusion part 31 extends obliquely upward from the inside to the outside and is lower than the top wall of the diffusion part 31. The top wall is arranged close to the outer ring side, and its area is smaller than the area of the bottom wall of the diffusion part 31. The outer ring side wall of the diffusion part 31 extends obliquely upward from the outside to the inside to the top wall.

[0063] The first side wall and the second side wall of the diffusion part 31, which are connected between the inner ring side wall and the outer ring side wall, both extend obliquely upward and are connected to the top wall. That is, the first side wall and the second side wall located between the inner ring side wall and the top wall are connected to each other and extend obliquely upward. The damping cavity 1 presses against the top wall of the diffusion part 31.

[0064] Since the inner ring side wall of the diffusion part 31 extends obliquely upward from the inside to the outside and its height is lower than the top wall, this design enables the counterpressure of the damping cavity 1 not to directly act on the inner ring side wall during low-amplitude vibration, but to be transmitted to the top wall more gently. Since the area of the top wall is smaller than that of the bottom wall and it is arranged close to the outer ring side, this structure effectively reduces the activation of the damping structure 3 at low amplitudes, thereby avoiding the generation of unnecessary damping force. This not only reduces energy consumption but also reduces the wear of the damping structure 3 and prolongs the service life of the equipment.

[0065] The diffusion part 31 includes an inner ring side wall, an outer ring side wall that extends obliquely upward, and the first and second side walls that are connected between the inner ring side wall and the outer ring side wall, jointly constituting a stable and flexible structure. This design not only enhances the structural strength of the diffusion part 31, enabling it to withstand greater pressure without being easily deformed or damaged; but also reduces the occurrence of local stress concentration by dispersing the pressure, thereby improving the durability of the damping structure 3.

[0066] Such as Figures 3 to 7As shown, a pressing portion 112 is provided at one end of the damping cavity 1 opposite to the diffusion portion 31. The pressing portion 112 can be arranged according to the structures of different damping components. It can protrude inward or not, and the inner wall of the end of the damping cavity 1 is used for pressing.

[0067] The pressing portion 112 is arranged on the outer periphery of the shaft hole in the damping cavity 1 through which the suspension rod 2 passes. The pressing portion 112 is located radially outside the inner peripheral wall of the damping sleeve 32. At least part of the pressing portion 112 is arranged opposite to the diffusion portion 31 for pressing the diffusion portion 31.

[0068] A specific implementation is as Figures 2 to 5 shown. The upper support seat 11 and the lower support seat 12 of the damping component are in pressing fit connection to form the damping cavity 1. The damping sleeve 32 is installed in the damping cavity 1 in the lower support seat 12, and the diffusion portion 31 protrudes outside the lower support seat 12. The pressing portion 112 is arranged in the upper support seat 11 and is in contact with the diffusion portion 31, and is used for pressing the diffusion portion 31 to press the damping sleeve 32 to move on the suspension rod 2 to generate a damping force after being compressed beyond a preset amplitude.

[0069] The pressing portion 112 protrudes and extends inward along the shaft hole at one end of the damping cavity 1, and its extending direction is axial.

[0070] The pressing portion 112 continues to extend inward along the shaft hole of the upper support seat 11 for a certain length, and the gap between the diameter of the shaft hole of the upper support seat 11 from top to bottom and the suspension rod 2 becomes larger. Or, the pressing portion 112 continues to extend inward along the outer periphery of the edge of the shaft hole of the upper support seat 11 for a certain length, and there is a small distance between the inner peripheral wall of the pressing portion 112 and the shaft hole of the upper support seat 11.

[0071] Specifically, the opening of the concave cavity of the upper support seat 11 is flush with the edge of the opening of the concave cavity of the lower support seat 12 to form the damping cavity 1. The damping structure 3 is installed in the damping cavity 1 in the lower support seat 12 and is in contact with the bottom wall of the damping cavity 1. When reaching the preset amplitude, there is a certain distance between the lower end of the damping structure 3 and the lower end of the damping cavity 1.

[0072] The extending length of the pressing portion 112 is less than the extending length of the damping cavity 1 in the upper support seat 11. The diffusion portion 31 is in contact with the pressing portion 112.

[0073] Preferably, the upper support seat 11 is a spherical seat. The bottom of the spherical seat is buckled outside the top of the lower support seat 12.

[0074] The bottom of the upper support base 11 is provided with an annular wall 111, which presses against the outer periphery of the opening of the concave cavity of the lower support base 12. The inner wall of the annular wall 111 is flush with the inner wall of the opening of the concave cavity of the lower support base 12, jointly forming the damping cavity 1. There is a certain distance between the lower end of the pressing portion 112 and the lower end of the annular wall 111.

[0075] The annular wall 111 is arranged on the bottom wall of the spherical seat and presses against the upper part of the lower support base 12. The extending length of the pressing portion 112 is less than the extending arrangement of the annular wall 111.

[0076] The pressing portion 112 includes an annular pressing plate 1121 and an extending plate 1122. The annular pressing plate 1121 is arranged on the outer periphery of the shaft hole of the upper support base 11 through which the suspension rod 2 passes, and the extending plate 1122 extends outward along the radial direction from the annular pressing plate 1121 at intervals.

[0077] A part of the annular pressing plate 1121 presses against the top wall of the diffusion portion 31, and there is a certain radial distance from the inner wall of the shaft hole of the damping sleeve 32. The extending plate 1122 presses against the outer ring end of the top wall of the diffusion portion 31.

[0078] Preferably, the damping structure 3 is fitted and installed in the damping cavity 1 in the initial state.

[0079] Another specific implementation is as Figures 5 to 7 shown, the upper support base 11 of the vibration damping component and the lower support base 12 are in pressing fit to form a deformation cavity 13 and a damping cavity 1. The damping sleeve 32 and the diffusion portion 31 are installed in the damping cavity 1 formed inside the upper support base 11.

[0080] The lower support base 12 is provided with a support portion 121, which is used to press the deformation cavity 13 after the vibration exceeds a preset amplitude, and then the pressing portion 112 and the support portion 121 cooperate to press the diffusion portion 31 and the damping sleeve 32 to deform and generate a viscous damping force on the suspension rod 2.

[0081] The bottom of the upper support base 11 is provided with a downwardly protruding annular wall 111. The annular wall 111 extends into the concave cavity of the lower support base 12 to cooperate to form the damping cavity 1, and a deformation cavity 13 is formed between the outer periphery of the annular wall 111 of the upper support base 11 and the outer periphery of the opening of the concave cavity of the lower support base 12. After the vibration reaches the preset amplitude, the damping structure 3 will be squeezed between the pressing portion 112 and the support portion 121 and is located in the damping cavity 1 inside the upper support base 11.

[0082] The pressing part 112 is arranged on the outer periphery of the shaft hole at one axial end of the damping cavity 1. The upper support seat 11 is recessed along the shaft hole towards its inner wall to form an avoidance space. When the upper support seat 11 is vibrated and presses down on the lower support seat 12, it is convenient for the seat cover of the upper support seat 11 to deform. Preferably, the outer periphery of the avoidance space is the pressing part 112.

[0083] The upper support seat 11 is a spherical seat. The seat cover of the spherical seat is buckled on the outer periphery of the top of the lower support seat 12, and cooperates with the annular wall 111 and the outer periphery of the top opening of the lower support seat 12 to form a deformation cavity 13. When the spherical seat is extruded by an external force and contacts the lower support seat 12, the seat cover will become flattened.

[0084] Preferably, the seat cover of the spherical seat is umbrella-shaped.

[0085] The supporting part 121 is arranged on the outer periphery of the shaft hole in the concave cavity of the lower support seat 12.

[0086] Furthermore, the lower end of the suspension rod 2 is fixed on the base 5 of the vibration damping component, and the spring 4 is clamped between the lower support seat 12 and the base 5. When the vibration amplitude is lower than the preset amplitude, the spring 4 is used for vibration damping; when the vibration amplitude is higher than the preset amplitude, the spring 4 and the damping structure 3 jointly perform vibration damping.

[0087] The upper part of the upper support seat 11 is provided with a protruding mounting post, and the mounting post is movably inserted through the mounting structure of the washing tub. In addition, a support plate 113 is provided on the upper part of the upper support seat 11, and the support plate 113 can be sleeved and fixed on the outer periphery of the bottom of the mounting post. A limiting plate is provided on the suspension rod 2 above the mounting post to ensure that the mounting structure of the washing tub is firmly clamped between the support plate 113 and the limiting plate.

[0088] The present utility model further provides a laundry treating device having the variable damping vibration damping component as described in any one of the above.

[0089] Preferably, the laundry treating device is a pulsator or drum washing machine, and the washing tub is an outer tub.

[0090] The washing machine body is provided with a mounting part cooperating with the suspension rod 2 and is connected to the mounting part of the suspension rod 2. The bottom circumferential side of the outer tub of the washing machine is provided with a mounting structure cooperating with the suspension rod 2 and is connected to the base 5 or the connecting rod.

[0091] Of course, the connection positions of both ends of the vibration damping component on the washing machine can also be interchanged.

[0092] The above are only the preferred embodiments of the present utility model, and do not impose any form of limitation on the present utility model. Although the present utility model has been disclosed above with the preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art of this patent, without departing from the scope of the technical solution of the present utility model, can make some changes or modifications using the technical content prompted above to form equivalent embodiments of equivalent changes. The implementation schemes in the above embodiments can also be further combined or replaced. However, as long as the content does not depart from the technical solution of the present utility model, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present utility model still fall within the scope of the present utility model's solution.

Claims

1. A flexible variable damping vibration reduction component, characterized in that: include: boom; A damping chamber, wherein the suspension rod is axially movably disposed through the damping chamber; A damping structure is sleeved on the suspension rod in the damping cavity; One axial end of the damping structure has a diffuser, which is used to deform and disperse the resistance pressure of the damping chamber to the outer periphery of the suspension rod when the vibration is lower than the preset amplitude. When the vibration exceeds the preset amplitude, the diffuser resistance pressure damping structure deforms and cooperates with the suspension rod to generate a damping force.

2. A flexible variable damping vibration reduction component according to claim 1, characterized in that: The damping structure includes a damping sleeve, and the diffuser is elastically arranged on an end surface of the damping sleeve. After the vibration exceeds the maximum compression distance of the diffuser, the damping cavity presses the diffuser and the damping sleeve to move and / or deform, generating a damping force between the diffuser and the suspension rod.

3. A flexible variable damping vibration reduction component according to claim 2, characterized in that: The diffuser is arranged protrudingly at intervals on an end surface of one axial end of the damping sleeve; The area of ​​the diffuser disposed at the outer ring end of the damping sleeve is larger than the area of ​​the diffuser disposed at the inner ring end of the damping sleeve.

4. A flexible variable damping vibration reduction component according to claim 3, characterized in that: The protruding height of the diffuser portion is gradually increased from the inner ring side to the outer ring side of the damping sleeve, and the damping cavity presses against the outer ring end of the diffuser portion.

5. A flexible variable damping vibration reduction component according to claim 4, characterized in that: The inner ring side wall of the diffuser extends upward from the inside to the outside to a position lower than the top wall of the diffuser, and the top wall is arranged close to the outer ring side; the outer ring side wall of the diffuser extends upward from the outside to the inside to the top wall; The diffusion portion is connected to the first side wall between the inner ring side wall and the outer ring side wall, and the second side wall extends obliquely upward and is connected to the top wall; the first side wall and the second side wall located between the inner ring side wall and the top wall are connected to each other; The damping chamber presses against the top wall of the diffuser.

6. A flexible variable damping vibration reduction component according to any one of claims 2 to 5, characterized in that: A pressing portion is provided on the end of the damping chamber opposite to the diffuser, and is arranged on the outer periphery of the axial hole in the damping chamber for the suspension rod to pass through, and the pressing portion is located radially outside the inner circumferential wall of the damping sleeve; the pressing portion is at least partially arranged opposite to the diffuser for pressing the diffuser.

7. A flexible variable damping vibration reduction component according to claim 6, characterized in that: The upper support seat and the lower support seat of the vibration-damping component are connected by press-fitting to form the damping cavity, the damping sleeve is installed in the damping cavity in the lower support seat, and the diffuser protrudes out of the lower support seat; the pressing portion is arranged in the upper support seat, and is arranged in contact with the diffuser, and is used to press the diffuser to compress the damping sleeve to move on the suspension rod to generate a damping force after the diffuser is compressed beyond a preset amplitude; Alternatively, the upper support seat of the vibration-damping component is pressed and cooperated with the lower support seat to form a deformation cavity and a damping cavity, the damping sleeve and the diffuser are arranged in the damping cavity of the upper support seat, and a support portion is provided in the lower support seat, which is used to squeeze the deformation cavity after the vibration exceeds a preset amplitude, and the pressing portion and the support portion cooperate to squeeze the diffuser and the damping sleeve to deform to generate a viscous damping force on the suspension rod.

8. A flexible variable damping vibration reduction component according to claim 7, characterized in that: The pressing part includes an annular pressing plate and an extension plate, wherein the annular pressing plate is arranged at the outer periphery of the shaft hole through which the suspension rod is passed in the upper support seat, and the extension plate is arranged to extend radially outward from the annular pressing plate; The annular pressing plate partly presses against the top wall of the diffuser, and has a certain distance from the inner wall of the axial hole of the damping sleeve in the radial direction, and the extension plate presses against the outer ring end of the top wall of the diffuser.

9. The flexible variable damping vibration reduction component according to claim 7, characterized in that: The opening of the concave cavity of the upper support seat is flush with the opening edge of the concave cavity of the lower support seat to form the damping cavity, the damping structure is installed in the damping cavity in the lower support seat, and contacts the bottom wall of the damping cavity. When the preset amplitude is reached, there is a certain distance between the lower end of the damping structure and the lower end of the damping cavity; Alternatively, 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 cooperate to form the damping cavity, and a deformation cavity is formed between the outer periphery of the annular wall of the upper support seat and the outer periphery of the concave cavity opening of the lower support seat, and the damping structure is installed in the concave cavity in the upper support seat, and after reaching a preset amplitude, the damping structure is squeezed between the pressing portion and the supporting portion.

10. A clothes processing device, characterized in that: A flexible variable damping vibration reduction component according to any one of claims 1 to 9.

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