Vibration-reducing and noise-reducing foot and washing machine

Abstract

The present invention belongs to the technical field related to footing, and discloses a vibration-damping and noise-reducing footing and a washing machine. The vibration-damping and noise-reducing footing comprises a screw, a rubber base fixed to one end of the screw, a first locking member installed at the end of the screw away from the rubber base, and a second locking member fixed to the end of the screw close to the rubber base, wherein the second locking member presses the rubber base and deforms the top of the rubber base. The present invention can effectively enhance the overall rigidity of the footing, reduce the shaking of the entire footing, and effectively reduce the amplitude and noise of the washing machine, avoid displacement of the washing machine, and avoid large force deformation when the entire washing machine vibrates greatly, thereby improving the service life and user experience of the washing machine.

Description

Technical Field

[0001] The invention relates to the technical field related to footing, and in particular to a vibration-reducing and noise-reducing footing and a washing machine. Background Art

[0002] When the washing machine is installed after sales, a foot is set at the bottom to achieve the leveling and vibration reduction effect of the washing machine. Traditional footings mostly use a structure in which a rubber foot 100 is locked with a nut 101 (such as Figure 1 As shown in FIG. 1 , the rubber foot 100 contacts the ground to reduce vibration, and the screw 102 on the rubber foot 100 is threadedly connected to the washing machine housing, and the hexagonal nut 101 is used to lock the washing machine housing and the screw 102. The above-mentioned traditional foot has a simple structure and can play the role of leveling and reducing vibration of the washing machine.

[0003] At present, the distance between the bottom of the drum washing machine on the market and the ground is generally designed to be about 10 mm. In this case, the existing traditional feet can meet the vibration requirements of the washing machine, but the drainage pipe of this design cannot cross the bottom of the washing machine. In order to meet the various drainage needs of users, sometimes the drainage pipe needs to pass under the machine. At this time, it is necessary to increase the distance between the bottom of the washing machine and the ground by adjusting the height of the four feet to allow the drainage pipe to pass through. In this case, the existing traditional feet can no longer meet the vibration requirements of the machine, and will shift during the operation of the washing machine, and even cause accidents, affecting the use of users.

[0004] Moreover, the existing traditional feet cannot effectively support and position the washing machine when it is running at high speed, causing the washing machine to move; and when the washing machine is running at high speed, the vibration reduction effect of the above-mentioned traditional feet will also be weakened, causing loud noise during the operation of the washing machine, reducing the user experience. Summary of the invention

[0005] The object of the present invention is to provide a vibration-reducing and noise-reducing foot to solve the problem that the existing foot has a weak vibration-reducing effect.

[0006] Another object of the present invention is to provide a washing machine, comprising the above-mentioned vibration-reducing and noise-reducing foot, so as to solve the problem of displacement and loud noise caused by weak vibration-reducing effect of the foot in the existing washing machine.

[0007] To achieve this object, the present invention adopts the following technical solutions:

[0008] A vibration-damping and noise-reducing foot comprises a screw, a rubber base fixed to one end of the screw, a first locking piece installed at the end of the screw away from the rubber base, and a second locking piece fixed to the end of the screw close to the rubber base, wherein the second locking piece presses the rubber base and deforms the top of the rubber base.

[0009] Preferably, the surface area of ​​the second locking member facing the rubber base is larger than the surface area of ​​the rubber base contacting the second locking member.

[0010] Preferably, the second locking member is a locking gasket.

[0011] Preferably, the locking washer is threadedly connected to the screw rod or is integrally formed with the screw rod.

[0012] Preferably, the locking gasket is circular, hexagonal or square in shape.

[0013] Preferably, the first locking member is a flange nut, and the flange nut is threadedly connected to the screw rod.

[0014] Preferably, a nut is provided at one end of the screw rod fixed to the rubber base, and the nut is fixed inside the rubber base and is covered and fixed by the rubber base.

[0015] The present invention also provides a washing machine, comprising the above-mentioned vibration-reducing and noise-reducing foot.

[0016] Preferably, it further comprises a box body, and the vibration-damping and noise-reducing feet are installed at the bottom of the box body.

[0017] Preferably, four vibration-damping and noise-reducing feet are provided and evenly distributed on the bottom of the box.

[0018] The beneficial effects of the present invention are as follows: by fixing the second locking piece to one end of the screw rod close to the rubber base, and making the second locking piece press the rubber base and deform the top of the rubber base, the overall rigidity of the base foot can be effectively enhanced, the shaking of the entire base foot can be reduced, and the amplitude and noise of the washing machine can be effectively reduced, the displacement of the washing machine can be avoided, and a large force deformation can be avoided when the entire washing machine vibrates greatly, thereby improving the service life of the washing machine and user experience.

[0019] By setting the area of ​​the surface where the second locking member contacts the rubber base to be larger than the area of ​​the surface where the rubber base contacts the second locking member, the vibration reduction and noise reduction effect can be further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the foot in the prior art of the present invention;

[0021] Figure 2 It is a schematic structural diagram of the vibration and noise reduction foot of the present invention;

[0022] Figure 3 is a schematic diagram of a washing machine with vibration-reducing and noise-reducing feet according to the present invention;

[0023] Figure 4It is a performance test comparison diagram of the vibration reduction and noise reduction foot of the present invention and the foot in the prior art and the hexagonal bolt locking rubber base.

[0024] In the figure:

[0025] 1. Screw; 2. Rubber base; 3. First locking piece; 4. Second locking piece; 10. Vibration and noise reduction base foot; 20. Box body; 100. Rubber base foot; 101. Nut; 102. Screw. DETAILED DESCRIPTION

[0026] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0027] The present invention provides a vibration reduction and noise reduction foot 10, such as Figure 2 As shown, the vibration-reducing and noise-reducing foot 10 includes a screw 1, a rubber base 2, a first locking member 3 and a second locking member 4, wherein:

[0028] The screw rod 1 is provided with a thread at least at its upper end, and the thread is used to install the entire vibration reduction and noise reduction foot 10 below the housing 20 of a household appliance such as a washing machine ( Figure 3 In this embodiment, the screw rod 1 is provided with threads along the axial direction, and a nut (not shown in the figure) is integrally formed on the end thereof not connected to the household appliance. That is to say, the structure of the screw rod 1 in this embodiment is similar to or the same as that of the hexagonal bolt.

[0029] The above-mentioned rubber base 2 is used to contact the ground, and its lower surface is a plane, and the rubber base 2 is covered on the outside of the above-mentioned nut. Specifically, a cavity (not shown in the figure) is provided inside the rubber base 2, and the above-mentioned nut is placed in the cavity and limited by the cavity. During the production process, the above-mentioned rubber base 2 can be injection molded on the nut.

[0030] The first locking member 3 is threadedly connected to the end of the screw 1 away from the rubber base 2, and is used to lock and fix the end of the screw 1 connected to the housing 20 of the household appliance, and can support the connection strength between the screw 1 and the housing 20 of the household appliance. In this embodiment, the first locking member 3 can be a flange nut, a hexagonal nut or a plastic nut threadedly connected to the screw 1, wherein the flange nut is preferably used in this embodiment. When the screw 1 is threadedly connected to the housing 20, the upper end surface of the flange nut will abut against the lower surface of the housing 20. Since the contact area between the flange nut and the housing 20 is large, the deformation of the housing 20 can be effectively reduced, and the noise generated by vibration between the vibration reduction and noise reduction foot 10 of this embodiment and the housing 20 can be reduced.

[0031] It should be noted that the above-mentioned first locking member 3 of the present embodiment can also be directly integrally formed with the screw 1, that is, directly fixed to the end of the screw 1 away from the rubber base 2. When the screw 1 is screwed to be connected to the box body 20, the above-mentioned first locking member 3 can be tightly attached to the lower surface of the box body 20 to support the box body 20, so as to reduce the deformation of the box body 20 and the noise generated by vibration.

[0032] The second locking member 4 is fixed to one end of the screw rod 1 close to the rubber base 2, and the second locking member 4 presses the rubber base 2 and keeps the top of the rubber base 2 in a deformed state, that is, the top of the rubber base 2 is always pressed and fixed by the second locking member 4. By keeping the top of the rubber base 2 in a deformed state, the overall rigidity of the entire vibration-reducing and noise-reducing foot 10 can be enhanced, the shaking of the entire vibration-reducing and noise-reducing foot can be reduced, and the amplitude and noise of household appliances such as washing machines can be effectively reduced, and displacement of household appliances such as washing machines can be avoided. It can also prevent the entire household appliances such as washing machines from generating large force deformation when the vibration is large, thereby improving the service life of household appliances such as washing machines and user experience.

[0033] Especially when the distance between the housing 20 of a household appliance such as a washing machine and the ground is increased, the structure in which the second locking member 4 of this embodiment presses the rubber base 2 and deforms the top of the rubber base 2 can more obviously reduce vibration and noise of household appliances such as washing machines.

[0034] As a preferred technical solution, the surface area of ​​the second locking member 4 facing the rubber base 2 is larger than the surface area of ​​the rubber base 2 in contact with the second locking member 4. In this embodiment, the end of the rubber base 2 close to the second locking member 4 is in a truncated cone structure, and the surface of the second locking member 4 in contact with the rubber base 2 is a horizontal plane, and the area of ​​the horizontal plane is larger than the surface area of ​​the truncated cone of the rubber base 2. Through the arrangement of this structure, the surface area of ​​the second locking member 4 in contact with the rubber base 2 is larger. When vibration occurs, this structure can quickly and efficiently dissipate the energy generated by the vibration, thereby reducing vibration and noise, and preventing the displacement of household appliances such as washing machines.

[0035] In this embodiment, the second locking member 4 is a locking gasket, which can be threadedly connected to the screw 1 or integrally formed with the screw 1. Through the locking gasket, the top of the rubber base 2 can be effectively pressed and fixed, so that a damping structure is formed between the rubber base 2 and the locking gasket to achieve the effect of quickly dissipating the energy generated by vibration.

[0036] In the embodiment, the shape of the locking gasket is circular, hexagonal or square, which can be selected according to different needs. In this embodiment, a circular locking gasket is selected.

[0037] Figure 4A performance test comparison diagram of the rotation speed-amplitude of a washing machine is shown, in which the vibration-reducing and noise-reducing foot 10 of the present embodiment is compared with the traditional foot in the prior art and the foot with a rubber base locked with a hexagonal bolt. The horizontal axis in the figure is the rotation speed of the washing machine, and the vertical axis is the amplitude of the washing machine when it vibrates. Lead A in the figure corresponds to the rotation speed-amplitude curve of the washing machine when the foot performance test is performed when the rubber base is locked with a hexagonal bolt; lead B corresponds to the rotation speed-amplitude curve of the washing machine when the traditional foot performance test is performed in the prior art, and lead C corresponds to the rotation speed-amplitude curve of the washing machine when the vibration-reducing and noise-reducing foot 10 of the present embodiment is performed. Figure 4 It can be seen that after the distance between the washing machine body 20 and the ground is increased, when the rotation speed of the washing machine is low, the amplitudes of the feet of the above three structures are not much different. When the rotation speed is very high, for example, reaching 1300 revolutions, the washing machines equipped with the traditional feet in the above-mentioned prior art and the feet with hexagonal bolts locking the rubber base all have a large amplitude, and the washing machine vibrates obviously and generates a lot of noise. The change in the amplitude of the washing machine equipped with the vibration-reducing and noise-reducing feet 10 of this embodiment is much smaller than that of the washing machine equipped with the traditional feet in the above-mentioned prior art and the feet with hexagonal bolts locking the rubber base. That is, the structure of the vibration-reducing and noise-reducing feet 10 of the present invention can effectively reduce the vibration of the washing machine, avoid its displacement, and reduce the noise generated by the vibration of the washing machine.

[0038] The present invention also provides a washing machine, which can be referred to Figure 3 The above-mentioned washing machine includes the above-mentioned vibration-damping and noise-reducing feet 10 and the box body 20, wherein four vibration-damping and noise-reducing feet 10 are arranged and evenly installed at the bottom of the box body 20, so as to realize leveling support for the washing machine, and at the same time can effectively reduce the vibration of the washing machine and the noise generated by the vibration.

[0039] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A vibration and noise reduction foot, characterized in that: The invention comprises a screw rod (1), a rubber base (2) fixedly connected to one end of the screw rod (1), a first locking member (3) installed at the end of the screw rod (1) away from the rubber base (2), and a second locking member (4) fixedly connected to the end of the screw rod (1) close to the rubber base (2), wherein the second locking member (4) presses the rubber base (2) and keeps the top of the rubber base (2) in a deformed state. The surface area of ​​the second locking member (4) facing the rubber base (2) is larger than the surface area of ​​the rubber base (2) contacting the second locking member (4); One end of the rubber base (2) close to the second locking member (4) is in a truncated cone structure; The second locking member (4) is a locking washer; The locking washer and the screw rod (1) are integrally formed.

2. The vibration and noise reduction footing according to claim 1, characterized in that: The locking gasket is in the shape of a circle, a hexagon or a square.

3. The vibration and noise reduction foot according to claim 1, characterized in that: The first locking member (3) is a flange nut, and the flange nut is threadedly connected to the screw rod (1).

4. The vibration and noise reduction footing according to claim 1, characterized in that: One end of the screw rod (1) fixedly connected to the rubber base (2) is provided with a nut, and the nut is fixed inside the rubber base (2) and is covered and fixed by the rubber base (2).

5. A washing machine, characterized in that: It comprises the vibration-damping and noise-reducing foot (10) as claimed in any one of claims 1 to 4.

6. The washing machine according to claim 5, characterized in that: It also comprises a box body (20), wherein the vibration-reducing and noise-reducing foot (10) is installed at the bottom of the box body (20).

7. The washing machine according to claim 6, characterized in that: Four vibration-reducing and noise-reducing feet (10) are provided and are evenly distributed on the bottom of the box body (20).

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