Washing machine shock absorber and washing machine comprising same

Abstract

The washing machine shock absorber comprises a first connecting piece and a second connecting piece, one end of the first connecting piece is movably connected with a washing machine roller, and the other end of the first connecting piece is connected with a washing machine shell in a sliding mode in the first direction through the second connecting piece. Wherein the first direction is at least parallel to the plane where the washing machine shell is located. The washing machine comprises the washing machine shock absorber. The fixed arrangement between the washing machine shock absorber and the washing machine shell is changed into the movable arrangement, so that the angle between the first connecting piece and the washing machine shell can be reduced in a low-speed large-displacement state, and the component force of damping provided by the first connecting piece in the transverse direction is increased. Similarly, when the washing machine drum is in a high-speed small-displacement state, the angle between the first connecting piece and the washing machine shell becomes larger, the component force of damping provided by the first connecting piece in the transverse direction becomes smaller, and therefore the needed damping is provided at different resonance rotating speeds.

Description

TECHNICAL FIELD

[0001] The utility model relates to a washing machine damper and a washing machine comprising the same. BACKGROUND

[0002] The existing drum washing machine barrel part lower end is provided with damping force in the running process by the damper, which plays a role of limiting and attenuating the vibration displacement of the washing machine drum. During the running process of the washing machine, especially during the low-speed resonance speed process, the displacement of the washing machine drum will become larger, reaching the maximum value in the whole speed running speed range. At this time, the limiting and damping effect of the damper has a great influence on the displacement of the washing machine drum, and is directly related to the problem of whether the washing machine drum will hit the washing machine shell. After the existing damper is installed to the washing machine shell, relative movement occurs between the damper sleeve and the sleeve pipe with the running of the washing machine, but no matter how large the displacement of the washing machine drum or the relative displacement between the damper sleeve and the sleeve pipe is, the angle change of the whole damper with the vertical direction is small, so that the horizontal component of the damping force changes little. Therefore, when the thickness of the damper damping sheet is determined, the horizontal damping component changes little whether at the low-speed resonance speed or at the high-speed stable speed. While the damper damping force often pursues to provide large horizontal damping at the low-speed resonance speed to inhibit the excessive displacement of the barrel, and to provide small damping at the high-speed stable speed to improve the vibration isolation rate of the suspension system and avoid the problem of large vibration noise of the high-speed whole machine box. The existing installation mode cannot consider such damping change. SUMMARY

[0003] The utility model wants to solve the technical problem that the horizontal direction angle of the existing drum washing machine damper is difficult to change, which leads to the difficulty of the damper to provide the required damping at different resonance speeds, and provides a washing machine damper and a washing machine comprising the same.

[0004] The utility model solves the above technical problem through the following technical scheme:

[0005] The utility model provides a washing machine damper, it includes first connecting piece and second connecting piece, one end of first connecting piece is movably connected with washing machine drum, the other end of first connecting piece is slidably connected with washing machine shell through second connecting piece in first direction, wherein the first direction is at least parallel with the plane that the washing machine shell is in.

[0006] In the present scheme, by changing the fixed setting between the washing machine shock absorber and the washing machine shell into a movable setting, the first connecting piece can slide to the first direction through the second connecting piece in the low-speed large displacement state, so that the angle between the first connecting piece and the washing machine shell becomes smaller, thereby increasing the lateral component force of the damping provided by the first connecting piece, and better inhibiting the lateral displacement of the washing machine drum. Similarly, in the high-speed small displacement state of the washing machine drum, the angle between the first connecting piece and the washing machine shell becomes larger, and the lateral component force of the damping provided by the first connecting piece becomes smaller, which can improve the vibration isolation rate of the suspension system, avoid the generation of large vibration noise of the washing machine in the high-speed state, and thus provide the required damping at different resonance speeds.

[0007] Preferably, the extension direction of the first connecting piece is not perpendicular to the first direction.

[0008] In the present scheme, by making the extension direction of the first connecting piece not perpendicular to the first direction, the first connecting piece and the washing machine shell form an acute angle, which facilitates the formation of a component force perpendicular to the axial direction of the washing machine drum, thereby improving the damping utilization rate of the shock absorber sleeve and increasing the service life of the shock absorber sleeve.

[0009] Preferably, the second connecting piece includes a sliding piece and a guide piece extending in the first direction, one of the sliding piece and the guide piece is connected to the end of the first connecting piece away from the washing machine drum, and the other is connected to the washing machine shell, and the guide piece and the sliding piece are in sliding fit.

[0010] In the present scheme, the guide piece can provide a preset running path for the sliding piece, prevent the sliding piece from deviating from the running path, and avoid the generation of a large lateral damping force, thereby affecting the damping effect.

[0011] Preferably, the guide piece includes a guide groove, and the sliding piece is arranged in the guide groove and in sliding fit with the inner wall surface of the guide groove.

[0012] In the present scheme, the inner wall surface of the guide groove can limit the displacement of the sliding groove in the direction perpendicular to the inner wall surface, so that the sliding of the sliding piece is within the preset range, and a large lateral damping force is avoided, thereby affecting the damping effect.

[0013] Preferably, the second connecting piece further includes a limiting piece arranged on the path of the sliding piece for limiting the sliding range of the sliding piece.

[0014] In the present scheme, by setting the limiting piece, the sliding piece can be prevented from coming out of the guide piece when sliding to the end of the guide piece, thereby causing the washing machine shock absorber to fail.

[0015] Preferably, the second connecting member further comprises an elastic member, two ends of the elastic member abutting against the sliding member and the guide slot respectively, wherein the elastic member is arranged to apply a force parallel to the first direction to the sliding member.

[0016] In this solution, the elastic member can apply a force parallel to the washing machine shell to the sliding member in the first direction, so as to clamp the sliding member on the limiting member, and make the sliding member more stable during sliding, thereby reducing noise.

[0017] Preferably, the limiting member is symmetrically arranged at two ends of the sliding path of the sliding member relative to the first connecting member.

[0018] In this solution, by arranging the limiting member at two ends of the sliding path of the sliding member, the sliding of the sliding member can be further limited within a preset range, so that the sliding member will not be out of the shell in the high-speed or low-speed state of the washing machine drum.

[0019] Preferably, the first connecting member comprises a plurality of sleeves, and the plurality of sleeves are arranged in sequence.

[0020] In this solution, the plurality of sleeves of the first connecting member are arranged in sequence to form air cavities between the sleeves, and the sleeves are arranged to compress air in the air cavities to provide damping. At the same time, the first connecting member can also provide damping for the vibration of the washing machine drum through the sliding of the second connecting member, and the damping effect can be further improved on the basis of the damping provided by the first connecting member itself.

[0021] A washing machine comprising the washing machine damper as described above.

[0022] In this solution, by changing the fixed arrangement between the washing machine damper and the washing machine shell into a movable arrangement, the first connecting member can slide in the first direction through the second connecting member in the low-speed large-displacement state, so that the angle between the first connecting member and the washing machine shell becomes smaller, thereby increasing the component force of the damping provided by the first connecting member in the transverse direction, and further better inhibiting the transverse displacement of the washing machine drum. Similarly, in the high-speed small-displacement state of the washing machine drum, the angle between the first connecting member and the washing machine shell becomes larger, and the component force of the damping provided by the first connecting member in the transverse direction becomes smaller, so as to improve the vibration isolation rate of the suspension system, and avoid large vibration noise of the washing machine in the high-speed state.

[0023] Preferably, the washing machine comprises a plurality of the washing machine dampers, and the plurality of washing machine dampers are arranged at intervals along the circumference of the washing machine drum.

[0024] In this solution, by arranging a plurality of washing machine dampers and arranging them along the circumference of the washing machine drum, the washing machine drum can be provided with damping in all directions, so as to ensure the damping effect of the washing machine drum.

[0025] The positive progress effect of the utility model lies in that:

[0026] The utility model discloses a washing machine damper and a washing machine comprising same, which changes the fixed setting between the washing machine damper and the washing machine shell into movable setting, can realize that the first connecting piece slides to the first direction through the second connecting piece in the low-speed large displacement state, makes the angle between the first connecting piece and the washing machine shell smaller, thereby making the component force of the damping provided by the first connecting piece larger in the lateral direction, and further better inhibits the lateral displacement of the washing machine drum. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is the perspective view of the washing machine damper of the utility model embodiment

[0028] Figure 2 It is the structure schematic view of the second connecting piece of the washing machine damper of the utility model embodiment

[0029] Figure 3 It is the local schematic view of the washing machine damper of the utility model embodiment

[0030] BRIEF DESCRIPTION OF DRAWINGS

[0031] Washing machine damper 100

[0032] First connecting piece 1

[0033] Sleeve 11

[0034] Second connecting piece 2

[0035] Sliding piece 21

[0036] Guide piece 22

[0037] Guide groove 221

[0038] Limiting piece 23

[0039] Elastic piece 24

[0040] Washing machine drum 3

[0041] Washing machine shell 4

[0042] First direction 5 DETAILED DESCRIPTION

[0043] The utility model will be described below in conjunction with the drawings.

[0044] As shown in Figures 1-3 The embodiment provides a washing machine damper 100, which comprises a first connecting piece 1 and a second connecting piece 2, one end of the first connecting piece 1 is movably connected with a washing machine drum 3, and the other end of the first connecting piece 1 is slidably connected with a washing machine shell 4 in a first direction 5 through the second connecting piece 2, wherein the first direction 5 is at least parallel to the plane where the washing machine shell 4 is located.

[0045] In this way, by changing the fixed setting between the washing machine damper 100 and the washing machine shell 4 into a movable setting, the first connecting piece 1 is slid in the first direction 5 through the second connecting piece 2 in the low-speed large-displacement state, so that the angle between the first connecting piece 1 and the washing machine shell 4 is small, thereby increasing the lateral component force of the damping provided by the first connecting piece 1, and better inhibiting the lateral displacement of the washing machine drum 3. Similarly, in the high-speed small-displacement state of the washing machine drum 3, the angle between the first connecting piece 1 and the washing machine shell 4 is large, and the lateral component force of the damping provided by the first connecting piece 1 is small, which can improve the vibration isolation rate of the suspension system, avoid large vibration noise of the washing machine in the high-speed state, and thus provide the required damping at different resonance speeds.

[0046] In the embodiment, the movable connection between the first connecting piece 1 and the washing machine drum 3 can be a hinge connection, a pin shaft connection, or other connection modes that allow the first connecting piece 1 to rotate relative to the washing machine drum 3. As shown in Figure 2 The first direction 5 can be arranged at an angle to the axial direction of the washing machine drum 3, and preferably, the first direction 5 is perpendicular to the axial direction of the washing machine drum 3. In this way, the washing machine damper 100 can provide more component force perpendicular to the axial direction of the washing machine drum 3.

[0047] Specifically, the extension direction of the first connecting piece 1 is not perpendicular to the first direction 5.

[0048] In this way, by arranging the first connecting piece 1 and the washing machine shell 4 at an acute angle, the component force perpendicular to the axial direction of the washing machine drum 3 is facilitated, thereby improving the damping utilization rate of the damper sleeve 11 and increasing the service life of the damper sleeve 11.

[0049] In the embodiment, preferably, the first connecting piece 1 and the washing machine shell 4 are arranged at an acute angle. Such a structure produces the maximum lateral damping component force when the unit angle changes. In other embodiments, those skilled in the art can also select other angle settings.

[0050] Specifically, as shown in Figure 2As shown, the second connecting member 2 comprises a sliding member 21 and a guide member 22 extending along the first direction 5, one of the sliding member 21 and the guide member 22 is connected with the first connecting member 1 away from the drum 3 of the washing machine, and the other is connected with the washing machine housing 4, and the guide member 22 and the sliding member 21 are in sliding fit.

[0051] In this way, the guide member 22 can provide a preset running path for the sliding member 21, prevent the sliding member 21 from deviating from the running path, and avoid generating a large transverse damping force, thereby affecting the damping effect.

[0052] In the embodiment, as shown, Figure 2 the guide member 22 comprises a guide groove 221, and the sliding member 21 is arranged in the guide groove 221 and in sliding fit with the inner wall surface of the guide groove 221. The inner wall surface of the guide groove 221 can limit the displacement of the sliding groove in the direction perpendicular to the inner wall surface, so that the sliding of the sliding member 21 is within a preset range, and a large transverse damping force is avoided, thereby affecting the damping effect. Preferably, the guide member 22 is connected with the washing machine housing 4, and the sliding member 21 is connected with the first connecting member 1 away from the drum 3 of the washing machine. Among them, the guide member 22 can be connected with the washing machine housing 4 through a bolt; the sliding member 21 and the first connecting member 1 can be connected through a pin. Preferably, the guide member 22 is detachable while being fixed with the washing machine housing 4, and the bolt connection mode can meet the needs of the two kinds of connections at the same time, and the installation is simple and the cost is low. Preferably, the sliding member 21 is detachable while being movably connected with the first connecting member 1, and the pin connection mode can meet the needs of the two kinds of connections at the same time, and the installation is simple and the cost is low.

[0053] Specifically, as shown in Figure 2 and Figure 3 the second connecting member 2 further comprises a limiting member 23 arranged on the path of the sliding member 21 for limiting the sliding range of the sliding member 21.

[0054] In this way, by arranging the limiting member 23, the sliding member 21 can be prevented from being pulled out of the guide member 22 when sliding to the end of the guide member 22, thereby causing the washing machine damper 100 to fail.

[0055] In the embodiment, preferably, the limiting member 23 is symmetrically arranged at both ends of the sliding path of the sliding member 21 relative to the first connecting member 1. By arranging the limiting member 23 at both ends of the sliding path of the sliding member 21, the sliding of the sliding member 21 can be further within a preset range, so that the sliding member 21 will not be pulled out in the high-speed or low-speed state of the drum 3 of the washing machine.

[0056] Specifically, as shown in Figure 2As shown, the second connecting member 2 further comprises an elastic member 24, two ends of the elastic member 24 abut against the sliding member 21 and the guide slot 221 respectively, wherein the elastic force direction of the elastic member 24 is at least along the first direction 5.

[0057] In this way, the elastic member 24 can exert a force parallel to the washing machine shell 4 on the sliding member 21 along the first direction 5, so as to clamp the sliding member 21 on the limiting member 23, and make the sliding member 21 more stable during sliding, which is beneficial to reduce noise.

[0058] In the embodiment, the elastic member 24 can be provided with a pre-compression amount, so that the sliding member 21 has a tendency to approach the washing machine drum 3. Preferably, the elastic member 24 is a spring, which is easy to install and has a relatively low cost. In other embodiments, other elastic members 24 can also be selected by those skilled in the art.

[0059] Specifically, the first connecting member 1 comprises a plurality of sleeves 11, which are sequentially sleeved.

[0060] In this way, the plurality of sleeves 11 of the first connecting member 1 are sleeved to form air cavities between the sleeves 11, and the sleeves 11 are telescopic to compress the air in the air cavities to provide damping. At the same time, the first connecting member 1 can also slide through the second connecting member 2 to provide damping when the washing machine drum 3 vibrates, and the damping effect can be further improved on the basis of the damping provided by the first connecting member 1 itself.

[0061] In the embodiment, the sleeves 11 in the first connecting member 1 are elongated and have different diameters, and can move relatively after being sleeved to form air cavities in the sleeves 11, and damping is provided by compressing the air in the air cavities.

[0062] The embodiment also provides a washing machine comprising the washing machine damper 100 as above.

[0063] Therefore, by changing the fixed arrangement between the washing machine damper 100 and the washing machine shell 4 into a movable arrangement, the first connecting member 1 can slide through the second connecting member 2 to the first direction 5 in the low-speed large-displacement state, so that the angle between the first connecting member 1 and the washing machine shell 4 becomes smaller, and the component of the damping provided by the first connecting member 1 in the transverse direction becomes larger, thereby better inhibiting the transverse displacement of the washing machine drum 3. Similarly, in the high-speed small-displacement state of the washing machine drum 3, the angle between the first connecting member 1 and the washing machine shell 4 becomes larger, and the component of the damping provided by the first connecting member 1 in the transverse direction becomes smaller, which can improve the vibration isolation rate of the suspension system and avoid large vibration noise of the washing machine in the high-speed state.

[0064] Specifically, the washing machine comprises a plurality of washing machine dampers 100, and the plurality of washing machine dampers 100 are arranged at intervals along the circumference of the washing machine drum 3.

[0065] Thus, by setting multiple washing machine shock absorbers 100 and arranging them circumferentially around the washing machine drum 3, damping can be provided to the washing machine drum 3 in all directions, ensuring the damping effect of the washing machine drum 3.

[0066] In the present embodiment, taking Figure 1 for example, the washing machine shock absorber 100 is four and is arranged below the washing machine drum 3, which is only a schematic representation. The washing machine shock absorber 100 can be arranged only below the washing machine drum 3, or can be arranged laterally, or can be arranged all around the washing machine drum 3. The present embodiment does not limit the number of washing machine shock absorbers 100, and a person skilled in the art can adjust the number and position according to the actual situation.

[0067] Although the specific embodiments of the present application are described above, those skilled in the art should understand that this is only an example, and the protection scope of the present application is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of the present application, and these changes and modifications all fall within the protection scope of the present application.

Claims

1. A washing machine damper, characterized by, The first connecting piece has one end movably connected with the drum and the other end slidably connected with the housing in a first direction.

2. The washing machine damper according to claim 1, wherein The first connecting piece has one end movably connected with the drum and the other end slidably connected with the housing in a first direction.

3. The washing machine damper according to claim 1, wherein The second connecting piece includes a sliding piece and a guide piece extending in the first direction, one of the sliding piece and the guide piece is connected with the first connecting piece away from the drum, and the other is connected with the housing, and the guide piece and the sliding piece are in sliding fit.

4. The washing machine damper according to claim 3, wherein The guide piece includes a guide groove, and the sliding piece is arranged in the guide groove and in sliding fit with the inner wall of the guide groove.

5. The washing machine damper according to claim 4, wherein The second connecting piece further includes a limiting piece arranged on the path of the sliding piece to limit the sliding range of the sliding piece.

6. The washing machine damper according to claim 5, wherein The second connecting piece further includes an elastic piece, and the two ends of the elastic piece are respectively in abutment with the sliding piece and the guide groove, and the elastic force of the elastic piece is at least in the first direction.

7. The washing machine damper according to claim 5, wherein The limiting piece is symmetrically arranged at the two ends of the sliding path of the sliding piece relative to the first connecting piece.

8. The washing machine damper according to claim 1, wherein The first connecting piece includes a plurality of sleeves, and the plurality of sleeves are arranged in sequence.

9. A laundry machine characterized by The washing machine further includes the washing machine damper.

10. The laundry machine according to claim 9, characterized in that, The washing machine includes a plurality of the washing machine dampers, and the plurality of the washing machine dampers are arranged at intervals along the circumference of the drum.

Images