Damping device of washing machine

Abstract

The utility model provides a damping device of a washing machine, which relates to the technical field of washing machines and comprises a suspender, a suspender seat is arranged at the upper end of the suspender, a spring lower support is arranged at the lower end of the suspender, a supporting seat and a spring upper support are mounted on the suspender in a sliding manner, the supporting seat and the spring upper support are mounted together, and a damping spring is arranged between the spring upper support and the spring lower support. The damping spring is sleeved on the hanging rod, a friction sleeve is sleeved in the spring upper support or the supporting seat or between the supporting seat and the spring upper support, a friction element is installed in the friction sleeve, the friction element is attached to the hanging rod, the friction sleeve and the spring upper support are arranged in a split mode, the friction sleeve and the spring upper support can slide independently, and the function of vibration buffering is achieved.

Description

Technical Field

[0001] This utility model relates to the field of washing machine technology, and in particular to a vibration damping device for washing machines. Background Technology

[0002] During operation, washing machines vibrate due to the uneven load of the items being washed and the centrifugal force. To ensure stable operation, existing washing machines are equipped with vibration damping devices. These devices are suspended between the outer casing and the inner tub of the washing machine. When the washing machine vibrates, the damping springs and friction elements simultaneously buffer the force generated by the vibration. The friction elements participate in the vibration damping process from the very beginning, resulting in rapid wear and tear on the friction elements, making them prone to failure and requiring frequent replacement.

[0003] Therefore, a vibration damping device for washing machines is needed to solve the above problems. Utility Model Content

[0004] This utility model proposes a vibration damping device for a washing machine, which separates the friction sleeve and the upper spring support, allowing the friction sleeve and the upper spring support to slide independently, thereby achieving the effect of vibration damping.

[0005] The technical solution of this utility model is implemented as follows:

[0006] A vibration damping device for a washing machine includes a suspension rod, a suspension rod seat at the upper end of the suspension rod, a lower spring support at the lower end of the suspension rod, a support seat and an upper spring support slidably mounted on the suspension rod, the support seat and the upper spring support being installed together, a damping spring being disposed between the upper spring support and the lower spring support, the damping spring being sleeved on the suspension rod, and a friction sleeve being fitted inside the upper spring support, inside the support seat, or between the support seat and the upper spring support, a friction element being installed inside the friction sleeve, the friction element being in contact with the suspension rod.

[0007] As a preferred technical solution, a buffer gap is provided inside the upper spring support, inside the support seat, or between the support seat and the upper spring support.

[0008] As a preferred technical solution, the friction sleeve is fitted inside the upper spring support, and the buffer gap is provided inside the upper spring support, which is located below the support base.

[0009] As a preferred technical solution, the upper spring support is provided with an oil storage cavity, which is connected to the friction sleeve.

[0010] As a preferred technical solution, the oil storage cavity is annular, and the inner wall of the oil storage cavity is provided with a plurality of through grooves for connecting the oil storage cavity and the friction sleeve.

[0011] As a preferred technical solution, the oil storage cavity is provided with several vertically arranged baffles evenly distributed along its circumference.

[0012] As a preferred technical solution, the upper and lower ends of the inner circumferential surface of the friction sleeve are provided with a plurality of limiting blocks for limiting the friction element.

[0013] As a preferred technical solution, the support base is disposed above the upper spring support, and the support base and the upper spring support are snapped or inserted together.

[0014] As a preferred technical solution, a compression spring is provided inside the buffer gap.

[0015] As a preferred technical solution, the upper end of the compression spring abuts against the support seat, and the lower end of the compression spring abuts against the friction sleeve.

[0016] By adopting the above technical solution, the beneficial effects of this utility model are as follows:

[0017] Since the washing machine's vibration damping device includes a friction sleeve, in this invention, the friction sleeve and the upper spring support are set separately, so that the friction sleeve and the upper spring support can slide independently to achieve the effect of damping vibration.

[0018] Because the washing machine's vibration damping device includes a buffer gap, when the washing machine vibrates, the thrust generated by the vibration is transmitted to the support seat. The support seat pushes the spring to move up and down, and the damping spring is compressed. The force generated by the vibration is buffered first through the elastic deformation of the damping spring, so that the vibration is reduced quickly. For vibrations of small intensity, the damping spring can buffer the force of the vibration. During this process, the setting of the buffer gap ensures that the friction sleeve does not shift relative to the hanging rod.

[0019] For vibrations of greater intensity, the support base and the upper spring support will continue to move downward under the action of thrust. The bottom of the support base abuts against the top of the friction sleeve, and pushes the friction sleeve to move downward relative to the hanger. At this time, the friction between the friction element and the hanger provides vibration damping, further buffering the vibration, thereby achieving the effect of vibration reduction.

[0020] In this invention, by setting a friction sleeve and a buffer gap, the damping spring performs damping work first, and the friction element intervenes when the vibration intensity is large, providing damping. This gives the device a graded damping function. By adapting the damping method according to the vibration intensity, the frequency of use of the friction element can be significantly reduced, and the frequency of maintenance or replacement due to damage to the friction element can be reduced, thereby improving the reliability and service life of the damping device.

[0021] Because the washing machine's vibration damping device includes a spring support, an oil storage chamber, and a through groove, the grease in the oil storage chamber can slowly penetrate to the friction elements, continuously providing lubrication to the friction elements, reducing wear on the friction elements, extending their service life, and reducing the frequency of replacement.

[0022] Because the oil storage chamber is equipped with a baffle, the baffle divides the oil storage chamber into multiple small oil storage chambers. Each small oil storage chamber is connected to the friction sleeve through a through groove. Furthermore, because the baffle is evenly distributed in the oil storage chamber along the circumference, the friction element can be evenly permeated with grease. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the structure of this utility model;

[0025] Figure 2 This is a schematic diagram of the structure of the spring support and friction sleeve;

[0026] Figure 3 This is a schematic diagram of the friction sleeve structure;

[0027] Figure 4 This is a schematic diagram of the spring pushing down.

[0028] Figure 5 This is a schematic diagram of the support base.

[0029] The components include: 1. Hanging rod; 2. Hanging rod seat; 3. Lower spring support; 4. Support seat; 5. Upper spring support; 6. Vibration damping spring; 7. Friction sleeve; 8. Friction element; 9. Buffer gap; 10. Oil reservoir; 11. Through groove; 12. Partition plate; 13. Limiting block; 14. Fiber pad; 15. Water baffle plate; 16. Compression spring. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Example 1:

[0032] like Figures 1-5 As shown, the washing machine vibration damping device includes a suspension rod 1, a suspension rod seat 2 at the upper end of the suspension rod 1, a spring lower support 3 at the lower end of the suspension rod 1, a support seat 4 and a spring upper support 5 slidably mounted on the suspension rod 1, the support seat 4 and the spring upper support 5 are installed together, a vibration damping spring 6 is provided between the spring upper support 5 and the spring lower support 3, the vibration damping spring 6 is sleeved on the suspension rod 1, a friction sleeve 7 is sleeved inside the spring upper support 5, inside the support seat 4, or between the support seat 4 and the spring upper support 5, a friction element 8 is installed inside the friction sleeve 7, and the friction element 8 is in contact with the suspension rod 1.

[0033] A buffer gap 9 is provided inside the upper spring support 5 or the support seat 4 or between the support seat 4 and the upper spring support 5.

[0034] like Figure 1 and Figure 2 As shown, a friction sleeve 7 is fitted inside the upper spring support 5, and a buffer gap 9 is provided inside the upper spring support 5, which is located below the support base 4.

[0035] The upper spring support 5 is provided with an oil storage chamber 10, which is connected to the friction sleeve 7.

[0036] The oil storage cavity 10 is annular, and the inner wall of the oil storage cavity 10 is provided with several through grooves 11 for connecting the oil storage cavity 10 and the friction sleeve 7.

[0037] Several vertically arranged baffles 12 are evenly distributed along the circumference of the oil storage cavity 10.

[0038] like Figure 2 and Figure 3 As shown, the upper and lower ends of the inner circumferential surface of the friction sleeve 7 are provided with a number of limiting blocks 13 for limiting the friction element 8.

[0039] The support base 4 is located above the upper spring support 5, and the support base 4 and the upper spring support 5 are snapped or plugged together.

[0040] A fiber pad 14 is fitted on the upper part of the support base 4, and a water baffle 15 is fitted on the upper part of the hanger rod 1. The water baffle 15 is located between the support base 4 and the hanger rod seat 2.

[0041] Example 2:

[0042] This embodiment is basically the same as Embodiment 1, except that a compression spring 16 is provided in the buffer gap 9.

[0043] The upper end of the compression spring 16 abuts against the support base 4, and the lower end of the compression spring 16 abuts against the friction sleeve 7.

[0044] In this invention, the reaction force generated by the compression spring 16 and the reaction force generated by the damping spring 6 can work together to buffer the force generated by the vibration of the washing machine, thereby achieving the effect of vibration reduction. The compression spring 16 can also reset the friction sleeve 7, preparing for the next vibration reduction.

[0045] In summary, this utility model separates the friction sleeve and the upper spring support, allowing them to slide independently and thus achieving a vibration damping effect.

[0046] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A vibration damping device for a washing machine, comprising a suspension rod, a suspension rod seat at the upper end of the suspension rod, a lower spring support at the lower end of the suspension rod, a support seat and an upper spring support slidably mounted on the suspension rod, the support seat and the upper spring support being installed together, a vibration damping spring being disposed between the upper spring support and the lower spring support, the vibration damping spring being sleeved on the suspension rod, characterized in that, A friction sleeve is fitted inside the upper spring support, the support base, or between the support base and the upper spring support. A friction element is installed inside the friction sleeve, and the friction element is in contact with the suspension rod.

2. The washing machine vibration damping device according to claim 1, characterized in that, A buffer gap is provided inside the upper spring support, inside the support base, or between the support base and the upper spring support.

3. The washing machine vibration damping device according to claim 1 or 2, characterized in that, The friction sleeve is fitted inside the upper spring support, and the buffer gap is provided inside the upper spring support, which is located below the support base.

4. The washing machine vibration damping device according to claim 3, characterized in that, The upper spring support is provided with an oil storage cavity, which is connected to the friction sleeve.

5. The washing machine vibration damping device according to claim 4, characterized in that, The oil storage cavity is annular, and the inner wall of the oil storage cavity is provided with several through grooves for connecting the oil storage cavity and the friction sleeve.

6. The washing machine vibration damping device according to claim 4, characterized in that, The oil storage cavity is provided with several vertically arranged partitions evenly distributed along its circumference.

7. The washing machine vibration damping device according to claim 1, characterized in that, The upper and lower ends of the inner circumferential surface of the friction sleeve are provided with a plurality of limiting blocks for limiting the friction element.

8. The washing machine vibration damping device according to claim 1, characterized in that, The support base is located above the upper spring support, and the support base and the upper spring support are snapped or inserted together.

9. The washing machine vibration damping device according to any one of claims 1-8, characterized in that, A compression spring is installed inside the buffer gap.

10. The washing machine vibration damping device according to claim 9, characterized in that, The upper end of the compression spring abuts against the support base, and the lower end of the compression spring abuts against the friction sleeve.

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