Variable-damping vibration attenuation component and clothes processing equipment

Abstract

The invention discloses a variable-damping vibration attenuation component and clothes treating equipment. The vibration attenuation component comprises a hanging rod, a damping device and a damping device, 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; the damping structure and the inner wall of the damping cavity are arranged in a free moving mode, the axial length of the damping structure is smaller than that of the damping cavity, and the damping structure is used for being fixed to the suspender after vibration exceeds the preset amplitude and moving along the suspender under abutting of the damping cavity to start to generate damping force. When small-amplitude vibration is generated during high-speed dehydration and the like, damping force is not generated, abrasion of the damping structure is reduced, vibration reduction can be conducted only through the spring, and resonance is avoided; when large-amplitude vibration is generated during dewatering and the like, damping force is provided for vibration reduction, vibration noise is reduced, a damping structure and a spring can be matched for vibration reduction, the damping structure is prevented from being abraded in the whole vibration process, and the applicability of the clothes treatment equipment under various working conditions is improved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of clothes treatment equipment, and particularly relates to a variable-damping vibration reduction component and clothes treatment equipment. BACKGROUND

[0002] During the dehydration starting and running stage of the washing machine, due to the uneven distribution of the washing material and the strong centrifugal force generated during the dehydration process, the dehydration drum of the washing machine inevitably has the shaking and resonance phenomenon. Under this dynamic action, the outer drum will produce significant vibration and swing with the starting of the motor, and then cause larger noise and vibration feeling. If these vibrations and resonances cannot be effectively inhibited, not only the overall jumping of the washing machine will be caused, but also the cabinet will be impacted or the safety protection mechanism will be triggered, thereby affecting the normal operation of the washing machine.

[0003] In order to solve this problem, a special vibration reduction assembly is designed inside the washing machine, which is installed on the outer drum suspension seat of the washing machine. Its role is that when the outer drum shakes or swings due to the driving of the motor during the dehydration process, the hanger rod in the vibration reduction assembly can flexibly respond to these movements, and through its unique structural design, the vibration energy generated by the outer drum is absorbed and dispersed 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 the dehydration process.

[0004] At present, the vibration reduction assembly used in the full-automatic washing machine at home and abroad reduces the vibration of the outer drum through damping vibration and spring vibration. At the initial stage of dehydration, the outer drum vibrates greatly, and the vibration reduction assembly through damping vibration and spring vibration can greatly reduce the vibration and prevent the outer drum from impacting the cabinet. However, at the high-speed dehydration stage, the outer drum vibrates less, and at this time, the vibration reduction component through damping vibration and spring vibration will cause the damping structure to wear out quickly, will cause the vibration reduction assembly to fail quickly, will cause the resonance of the outer drum and the cabinet, and will increase the noise. The existing vibration reduction component cannot meet the demand for damping force under various working conditions of the pulsator washing machine.

[0005] Therefore, the present application is proposed. SUMMARY

[0006] The technical problem to be solved by the present application is to overcome the shortcomings of the prior art. The first purpose is to provide a variable-damping vibration reduction component, so that when small-amplitude vibration occurs during high-speed dehydration, no damping force is generated, the damping structure is reduced, only spring vibration is used for vibration reduction, and the dehydration shaking of the whole machine is avoided; when large-amplitude vibration occurs during the start of dehydration, damping force is provided for vibration reduction, the vibration noise is reduced, the damping structure and the spring are used together for vibration reduction, the damping structure is not worn out during the whole vibration process, and the applicability of the clothes treatment equipment under various working conditions is improved.

[0007] The second object of the present application is to provide a laundry treating apparatus.

[0008] To solve the above technical problems, the basic concept of the technical solution of the present application is to first provide a variable-damping vibration reduction component, comprising:

[0009] a hanger rod;

[0010] a damping cavity, the hanger rod being axially movably arranged through the damping cavity;

[0011] a damping structure, being arranged on the hanger rod in the damping cavity;

[0012] the damping structure being freely movable relative to the inner wall of the damping cavity, 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 a preset amplitude, and starts to generate damping force by moving along the hanger rod under the pressure of the damping cavity.

[0013] Further, the damping structure is extruded and fixed on the outer peripheral wall of the hanger rod.

[0014] 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 damping force by moving along the hanger rod.

[0015] Further, the axial hole of the damping structure or the rod diameter of the hanger rod is variably arranged.

[0016] When the vibration amplitude is less than the preset amplitude, the damping structure is fixed on the hanger rod by interference after being freely movable relative to the hanger rod, 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 damping force by moving along the hanger rod.

[0017] Further, the damping structure has a gap between the outer peripheral wall and the inner peripheral wall of the damping cavity, and the damping structure has a certain distance from one axial end of the damping cavity in the vibration balance state.

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

[0019] Further, the damping structure comprises a mounting frame and a damping sleeve, for cooperating with the damping cavity to extrude the damping sleeve to deform inwardly; the damping sleeve is arranged in the mounting frame, and the mounting frame has a gap with the inner peripheral wall of the damping cavity.

[0020] Further, the damping sleeve is limited in the mounting frame, for the damping cavity to press the damping sleeve to deform, and cooperate to extrude the damping sleeve to deform inwardly.

[0021] Preferably, the mounting frame comprises a mounting sleeve, a plurality of openings are arranged on the peripheral wall of the mounting sleeve, and a limiting portion is arranged in the two axial ports and abuts against the axial end face of the damping sleeve.

[0022] Further, one end of the damping cavity is provided with a pressing portion, and the outer periphery of the shaft hole arranged in the damping cavity for the derrick rod is provided with the pressing portion; the pressing portion is arranged opposite to the end portion of the damping structure and has a certain distance therefrom, and is used for moving the pressing portion to press the damping structure and generate a friction damping force with the derrick rod;

[0023] Preferably, the pressing portion is arranged in an inwardly protruding and extending manner along the shaft hole at one end of the damping cavity.

[0024] More preferably, the pressing portion is arranged opposite to the region between the mounting frame and the shaft hole of the damping sleeve.

[0025] Further, the upper support seat and the lower support seat of the damping component are abuttingly and fittingly connected to form the damping cavity, the damping structure is arranged in the damping cavity in the lower support seat in an initial state; the pressing portion is arranged in the upper support seat, and the extension length of the pressing portion is less than the extension length of the damping cavity in the upper support seat.

[0026] Alternatively, the upper support seat and the lower support seat of the damping component are abuttingly and fittingly connected 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 supporting portion, which is used for abuttingly and fittingly pressing the damping structure after the deformation cavity is extruded when the vibration exceeds a preset amplitude.

[0027] Further, the opening of the concave cavity of the upper support seat is flushly fitted 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 damping structure has a certain distance between the upper end and the lower end of the pressing portion.

[0028] 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 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 arranged in the concave cavity in the upper support seat, and the damping structure has a certain distance between the lower end and the upper end of the supporting portion.

[0029] Further, the lower end of the derrick rod 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, which is used for spring damping when the vibration is lower than a preset amplitude and is used for damping together with the damping structure when the vibration is higher than the preset amplitude.

[0030] The second aspect of the present application provides a clothes treatment device with the variable-damping damping component.

[0031] Compared with the prior art, the present application has the following beneficial effects.

[0032] (1) The variable damping vibration-damping component can only use the spring to dampen when small amplitude vibration occurs during high-speed dehydration, so that resonance is avoided. When large amplitude vibration occurs during dehydration, the damping cavity moves downward beyond the preset amplitude and presses against the damping structure to make it move on the hanger and generate damping force. The damping structure and the spring cooperate to dampen. The present application avoids generating damping force during the entire vibration process and wearing the damping structure, reduces vibration noise, and improves the applicability of the laundry treatment equipment under various working conditions.

[0033] (2) By providing a gap between the damping structure and the damping cavity, the damping structure can move freely in the damping cavity without generating friction and damping force. When the vibration amplitude of the vibration-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, so that the damping structure is not worn all the time, and the service life and use effect of the damping structure are improved.

[0034] The specific embodiments of the present application will be described in further detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0035] The accompanying drawings, which are part of the present application, serve to provide a further understanding of the present application, and the schematic embodiments of the present application and their descriptions serve to explain the present application but do not constitute an improper limitation on the present application. Obviously, the accompanying drawings described below are only some embodiments, and other drawings can be obtained by those skilled in the art without creative labor. In the drawings:

[0036] Figure 1 is a schematic view of a vibration-damping component of the present application;

[0037] Figure 2 is a schematic view of a vibration-damping component of the present application Figure 1 in another state;

[0038] Figure 3 is a schematic view of a vibration-damping component of the present application Figure 2 in another state;

[0039] Figure 4 is a schematic view of a vibration-damping component of the present application Figure 1 in another state;

[0040] Figure 5 is a schematic view of a vibration-damping component of the present application Figure 4 in another state;

[0041] Figure 6 is a sectional view of another damping component of the present application;

[0042] Figure 7 is a sectional view of a damping structure of the present application Figure 6 is an enlarged view of the structure at C in the middle of the present application;

[0043] Figure 8 is a schematic view of a damping structure of the present application.

[0044] In the figure: 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, suspension 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 the drawings and the written description are not intended to limit the scope of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0046] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments will be described clearly and completely below with reference to the drawings of the embodiments of the present application. The following embodiments are used to illustrate the present application, but are not used to limit the scope of the present application.

[0047] In the description of the present application, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0048] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0049] As Figures 1 to 8 shown, the present application provides a variable-damping damping component, which comprises 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 of different components of clothing processing equipment. At the same time, 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 the washing tub for vibration reduction.

[0055] During washing and spin-drying, the washing tub 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 hanger rod 2 is a constant-diameter rod: in the process of the damping cavity 1 moving downward due to vibration, the damping structure 3 moves downward with it and freely moves downward relative to the hanger rod 2 by gravity, at which time the distance between the damping cavity 1 and the damping structure 3 remains unchanged; continuing this process, the inner diameter of the damping structure 3 decreases and is pressed in interference with the hanger rod 2; subsequently, the damping cavity 1 continues to move downward, and the distance between the damping cavity 1 and the damping structure 3 decreases.

[0058] When the shaft hole of the damping structure 3 is a constant-diameter shaft hole and the hanger rod 2 is a variable-diameter rod: in the process of the damping cavity 1 moving downward due to vibration, the damping structure 3 moves downward with it and freely moves downward relative to the hanger rod 2 by gravity, at which time the distance between the damping cavity 1 and the damping structure 3 remains unchanged; continuing this process, the diameter of the hanger rod 2 increases and is pressed in interference with the damping structure 3; subsequently, the damping cavity 1 continues to move downward, and the distance between the damping cavity 1 and the damping structure 3 decreases.

[0059] Another embodiment is that the damping structure 3 is pressed in interference on the outer peripheral wall of the hanger 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 hanger rod 2 and generate a damping force.

[0061] Further, there is a gap between the outer peripheral wall of the damping structure 3 and the inner peripheral wall of the damping cavity 1. By providing a gap between the damping structure 3 and the damping cavity 1, the damping structure 3 can freely move in the damping cavity 1 without generating a friction force and a 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 the damping cavity 1 and the damping structure 3, which can avoid the damping structure 3 being worn out all the time, increase the service life and use effect of the damping structure 3.

[0062] Further, the preset amplitude is greater than or equal to the length difference ΔL of 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 of the damping cavity 1 and the damping structure 3, the upper end of the damping cavity 1 moves downward to approach the damping structure 3, at which time the spring 4 of the damping component performs damping; when the vibration amplitude is greater than the length difference ΔL of the damping cavity 1 and the damping structure 3 (as shown in FIG. 5), the upper end of the damping cavity 1 and the spring 4 of the damping component press against the damping structure 3, causing it to move and generate a damping force to perform damping. Figures 4 to 5

[0064] In the initial state (as shown in FIG. 1), the damping cavity 1 is spaced apart from the damping structure 3, and the spring 4 of the damping component is in a relaxed state. Figure 1 , Figure 3 and Figure 6 , Figure 7 ​As shown), the vibration damping component is unloaded, and the distance between one end of the damping structure 3 and the damping cavity 1 is the largest, which is ΔL.

[0065] In the vibration reduction and balance state, including the case where the washing tub is in a water balance state or the case where there is no water balance in the tub, the damping structure 3 maintains a certain distance from the upper end of the damping cavity 1. This distance is less than a 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 vibration damping component design involves fixing the upper end of the suspension rod 2 to the washing machine casing and the lower end of the suspension rod 2 to 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 washing tub is loaded at the upper end of the damping cavity 1.

[0068] When the washing tub vibrates under eccentric load, the washing tub presses against the damping cavity 1 and moves downward, 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 washing tub presses against the damping cavity 1 moves downward more than ΔL. The damping structure 3 rubs against the hanging rod 2 to generate damping force, which together reduces vibration.

[0069] Another vibration damping component includes two springs. The upper end of the suspension rod 2 is fixed to the washing machine's casing, and the lower end of the suspension rod 2 is fixed to the base 5 of the vibration damping component. The upper end of the first spring is connected to the base 5, and the lower end of the first spring is connected to the washing tub via a connecting rod. The second spring presses against the lower end of the damping cavity 1 and the base 5.

[0070] This design allows the spring 4 and damping structure 3 of the vibration damping component to be moved upwards, which significantly enhances the vibration damping effect. It also occupies less space, and the vibration damping component is less likely to collide with the internal structure of the washing machine, thus reducing noise during the washing process.

[0071] Alternatively, in the above scheme, the hanging rod 2 can be connected to the washing tub, and the connecting rod can be connected to the box body.

[0072] like Figures 2 to 8 As shown, the damping structure 3 includes a mounting bracket 31 and a damping sleeve 32 (see reference). 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.

[0073] 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.

[0074] 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.

[0075] The limiting part 313 abuts against the axial end face of the damping sleeve 32.

[0076] 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.

[0077] 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.

[0078] 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.

[0079] 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.

[0080] 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.

[0081] One specific implementation plan is, for example: Figures 2 to 5 As shown, the upper support 11 and lower support 12 of the vibration damping component are connected by a pressing fit to form the damping cavity 1. The pressing part 112 is disposed in the upper support 11.

[0082] 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.

[0083] 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.

[0084] 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.

[0085] 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.

[0086] 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.

[0087] 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.

[0088] 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.

[0089] 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.

[0090] Another specific implementation plan is, such as Figures 6 to 7 As shown, the upper support 11 and the lower support 12 of the vibration damping component are press-fitted together 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.

[0091] The outer periphery of the shaft hole of the other end of the damping cavity 1 is provided with a supporting part 121. When the upper supporting seat 11 vibrates to a preset amplitude, the upper and lower ends of the damping structure 3 are just in contact with the pressing part 112 and the supporting part 121. When the vibration exceeds the preset amplitude, the deforming cavity 13 is extruded and deformed, and the pressing part 112 and the supporting part 121 cooperate to extrude and deform the damping structure 3, thereby enhancing the viscous force between the damping structure 3 and the suspender 2.

[0092] The bottom of the upper supporting seat 11 is provided with a downwardly protruding annular wall 111 which extends into the concave cavity of the lower supporting seat 12 to cooperatively form the damping cavity 1. In the initial state, the end of the annular wall 111 is at a distance from the bottom wall of the concave cavity of the lower supporting seat 12. The extension length of the annular wall 111 is less than the extension length of the concave cavity in the lower supporting seat 12.

[0093] The deforming cavity 13 is formed between the bottom wall of the annular wall 111 of the upper supporting seat 11 and the outer periphery of the opening of the concave cavity of the lower supporting seat 12. The damping structure 3 is installed in the concave cavity in the annular wall 111, and in the initial state, the lower end of the damping structure 3 is at a distance from the upper end of the supporting part 121.

[0094] When the bottom wall of the upper supporting seat 11 is vibrated to move downward, the lower supporting seat 12 is pressed to cause the bottom wall of the upper supporting seat 11 to deform, at this time, the axial length of the deforming cavity 13 is reduced, the pressing part 112 inside the annular wall 111 further moves downward to push the damping structure 3 to press on the supporting part 121, so that the damping structure 3 is further extruded and deformed.

[0095] The pressing part 112 is the inner wall of the outer periphery of the shaft hole of the axial one end of the damping cavity 1.

[0096] The upper supporting seat 11 is a spherical seat. The cover of the spherical seat is buckled on the top outer periphery of the lower supporting seat 12, cooperates with the annular wall 111 and the top opening outer periphery of the lower supporting seat 12 to form the deforming cavity 13. When the spherical seat is extruded by external force and the lower supporting seat 12, the cover will be flattened.

[0097] Preferably, the cover of the spherical seat is umbrella-shaped.

[0098] The supporting part 121 is arranged on the outer periphery of the shaft hole in the concave cavity of the lower supporting seat 12. The supporting part 121 is arranged opposite to the damping structure 3, and is located inside the downward projection of the annular wall 111. The supporting part 121 is a plurality of plates arranged at intervals along the circumferential edge of the shaft hole, or the supporting part 121 is a cylindrical shape.

[0099] The upper support base 11 is provided with a recessed avoiding space along the axial hole to the inner wall, which facilitates the deformation of the cover of the upper support base 11 when the upper support base 11 is pressed downward after being vibrated.

[0100] Further, the lower end of the hanging rod 2 is fixed on the base 5 of the damping component, and the spring 4 is clamped between the lower support base 12 and the base 5. When the vibration amplitude is lower than the preset amplitude, the spring 4 is used for damping; when the vibration amplitude is higher than the preset amplitude, the spring 4 is used for damping together with the damping structure 3.

[0101] The upper support base 11 is provided with an upper mounting column, which is movably arranged on the mounting structure of the washing tub. In addition, the upper support base 11 is provided with a support plate 113, which is sleeved and fixed on the bottom outer periphery of the mounting column. The hanging rod 2 above the mounting column is provided with a limiting plate, so as to ensure that the mounting structure of the washing tub is stably clamped between the support plate 113 and the limiting plate.

[0102] The application also provides a clothes treatment device with the variable-damping damping component.

[0103] Preferably, the clothes treatment device is a washing machine, and the washing tub is an outer tub.

[0104] The cabinet of the washing machine is provided with a mounting portion matched with the hanging rod 2, and connected with the mounting portion of the hanging rod 2. The bottom circumferential side of the outer tub of the washing machine is provided with a mounting structure matched with the hanging rod, and connected with the base 5 or the connecting rod.

[0105] Of course, the connection positions of the two ends of the damping component on the washing machine can also be interchanged.

[0106] The above description is only the preferred embodiment of the application, and does not limit the application in any form. Although the application has been disclosed as above with the preferred embodiment, it is not intended to limit the application. Any person skilled in the art can make some changes or modifications to the above-mentioned technical content without departing from the technical solution of the application, and the equivalent embodiments with equivalent changes are equivalent. The embodiments in the above examples can be further combined or replaced, but as long as it does not deviate from the technical solution of the application, any simple modification, equivalent change and modification of the above examples according to the technical essence of the application are still within the scope of the application.

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 being 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 a preset amplitude, and the damping structure moves along the hanger rod under the pressure of the damping cavity to generate damping force.

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 to gradually approach the damping structure; and when the vibration amplitude exceeds the preset amplitude, the damping cavity presses against the damping structure to move along the hanger rod to generate damping force.

3. The variable damping vibration reduction component according to claim 1, wherein: the axial hole of the damping structure or the rod 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 in an interference fit, and the damping cavity approaches the damping structure; and when the vibration amplitude exceeds the preset amplitude, the damping cavity presses against the damping structure to move along the hanger rod to generate damping force.

4. The variable damping vibration reduction component according to any one of claims 1-3, wherein: a gap is provided 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 away from one axial end of the damping cavity in a vibration reduction equilibrium state; 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 a gap being provided 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 being provided on the circumferential wall of the mounting sleeve, and a limiting portion being provided in the two axial ports to abut against the axial end surface 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 provided 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 and a certain distance away from the end portion, for moving to press against the damping structure to generate friction damping force with the hanger rod; Preferably, the pressing portion is arranged to protrude inwardly and extend along the axial hole at 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 an 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