CN106498661A - Vibration reduction supporting mechanism and drum washing machine - Google Patents

Abstract

The invention provides a vibration-damping support mechanism and a drum washing machine. According to the vibration damping support mechanism of the present invention, it comprises a first support arm, a second support arm, a third support arm and an elastic buffer device, wherein the first support arm and the second support arm are rigid arms with fixed length, and the third support arm The arm is an adjustable arm with adjustable length; the first end of the first support arm, the first end of the second support arm and the first end of the third support arm are hingedly connected by a first hinge shaft; The end is provided with a first hinge hole hinged with the supported object; the second end of the second support arm has a second hinge hole hinged with the fixture, and the second end of the third support arm has a third hinge hole hinged with the fixture. Hinge holes, and the first hinge hole, the second hinge hole and the third hinge hole are distributed in a triangle; the elastic buffer device is respectively connected to the first support arm and the second support arm to buffer the first support arm and the second support arm Angle changes between. The invention can effectively reduce vibration.

Description

Vibration-absorbing support mechanism and drum washing machine

technical field

The invention relates to the field of washing machines, in particular to a vibration-damping support mechanism and a drum washing machine.

Background technique

As the current mainstream drum washing machine operation mode, drum washing machines are deeply loved by everyone for their unique advantages. However, most drum washing machines use the traditional hook spring plus damper. Although the cost is low and the applicability is high, the vibration However, it is very difficult to do very well. The reason is that the stress point of the whole system suspension is on the frame body, which is placed on the upper end of the frame body structure. When there is a small fluctuation, it will cause the entire drum washing machine to vibrate violently.

Contents of the invention

The invention aims to provide a vibration-reducing supporting mechanism and a drum washing machine.

The invention provides a vibration-damping support mechanism, which includes a first support arm, a second support arm, a third support arm and an elastic buffer device, wherein the first support arm and the second support arm are rigid arms with fixed lengths, and the first support arm and the second support arm are rigid arms with fixed lengths. The three support arms are adjusting arms with adjustable length; the first end of the first support arm, the first end of the second support arm and the first end of the third support arm are hingedly connected by the first hinge shaft; The second end is provided with a first hinge hole hinged with the supported object; the second end of the second support arm has a second hinge hole hinged with the fixture, and the second end of the third support arm has a hinge hole hinged with the fixture. The third hinge hole, and the first hinge hole, the second hinge hole and the third hinge hole are distributed in a triangle; the elastic buffer device is respectively connected to the first support arm and the second support arm to buffer the first support arm and the second support arm. Angle change between support arms.

Further, the elastic buffer device includes an arc-shaped guide rail and a spring matched with the arc-shaped guide rail.

Further, the arc-shaped guide rail includes an arc-shaped guide rail sliding sleeve and an arc-shaped sliding rod that is slidable relative to the arc-shaped guide rail sliding sleeve. An accommodation chamber is formed inside the arc-shaped guide rail sliding sleeve, and the spring is arranged in the accommodation chamber.

Further, the third support arm includes a length-adjustable telescopic assembly, and the telescopic assembly is a spring assembly, a hydraulic assembly, a magnetic assembly or a magnetic levitation assembly.

The present invention also provides a drum washing machine, which includes a casing and an outer tub, and the outer tub is supported and arranged inside the casing by the aforementioned vibration-damping support mechanism.

Further, the drum washing machine includes two sets of vibration-damping support mechanisms, wherein the two sets of vibration-damping support mechanisms are relatively arranged on both sides of the bottom of the outer tub; and the first hinge hole of the vibration-damping support mechanism is hinged to the outer tub, and the vibration-damping support mechanism The second hinge hole and the third hinge hole are hinged with the bottom plate of the housing.

Further, in the vertical direction, the axis of the outer tub is located between the two groups of vibration-damping support mechanisms, and the first hinge hole is located between the second hinge hole and the third hinge hole.

Further, the angle between the first support arm and the third support arm is greater than 120°.

Further, each set of vibration-damping support mechanisms includes at least two vibration-damping support mechanisms uniformly arranged along the axial direction of the tub.

According to the shock-absorbing support mechanism and drum washing machine of the present invention, a rigid first support arm and a second support arm, and an adjustable length adjustment arm are provided, and an elastic buffer is provided between the first support arm and the second support arm. The device cooperates with the elastic buffer device through three support arms to change the transmission direction of vibration and strengthen the loss of vibration energy, thereby effectively reducing vibration.

Description of drawings

The accompanying drawings constituting a part of this application are used to provide further understanding of the present invention, and the schematic embodiments and descriptions of the present invention are used to explain the present invention, and do not constitute an improper limitation of the present invention. In the attached picture:

Fig. 1 is a schematic diagram of the principle of a vibration damping support mechanism according to the present invention;

Fig. 2 is a front structural schematic diagram of a drum washing machine according to the present invention;

Fig. 3 is a schematic top view of the drum washing machine according to the present invention.

Explanation of reference signs:

1. Shell; 2. Outer barrel;

10. Damping support mechanism; 11. First support arm; 12. Second support arm; 13. Third support arm; 14. Elastic buffer device; 15. Telescopic component.

detailed description

The present invention will be described in detail below with reference to the accompanying drawings and examples.

As shown in Fig. 1, according to the shock absorbing support mechanism 10 of the present invention, comprise the first support arm 11, the second support arm 12, the third support arm 13 and the elastic buffer device 14, wherein, the first support arm 11 and the second The support arm 12 is a rigid arm with fixed length, and the third support arm 13 is an adjustable arm with adjustable length; the first end of the first support arm 11, the first end of the second support arm 12 and the first end of the third support arm 13 One end is hingedly connected by a first hinge shaft; the second end of the first support arm 11 is provided with a first hinge hole hinged with the supported object; the second end of the second support arm 12 has a second hinged hole hinged with the fixture. Hinged holes, the second end of the third support arm 13 has a third hinged hole hinged with the fixture, and the first hinged hole, the second hinged hole and the third hinged hole are in a triangular distribution; One supporting arm 11 and the second supporting arm 12 to buffer the angle change between the first supporting arm 11 and the second supporting arm 12 . The present invention is provided with a rigid first support arm 11 and a second support arm 12, and an adjustable length adjustment arm, and an elastic buffer device 14 is arranged between the first support arm 11 and the second support arm 12, through three The supporting arm cooperates with the elastic buffer device 14 to change the transmission direction of the vibration, strengthen the loss of vibration energy, and effectively reduce the vibration.

Specifically, the elastic buffer device 14 includes an arc-shaped guide rail and a spring matched with the arc-shaped guide rail, and the arc-shaped guide rail limits the position of the spring to improve reliability. Preferably, the arc-shaped guide rail includes an arc-shaped guide rail sliding sleeve and an arc-shaped sliding rod that is slidable relative to the arc-shaped guide rail sliding sleeve, and the two slide relatively to change the angle between the first support arm 11 and the second support arm 12 . An accommodating cavity is formed inside the arc-shaped guide rail sliding sleeve, and a spring is arranged in the accommodating cavity, thereby forming a buffer.

As shown in FIG. 2, the third support arm 13 includes a length-adjustable telescopic assembly 15, the telescopic assembly 15 is a spring assembly, a hydraulic assembly, a magnetic assembly or a magnetic levitation assembly, and the telescopic assembly 15 is telescopic, so that the third support arm 13 overall retractable. The elastic limit of the telescopic assembly 15 should be large, which can guarantee to bear the weight of the entire supported object and can provide sufficient supporting force when the supported object is running, and can be compressed at the same time to weaken or counteract the vibration of the supported object when it moves .

As shown in FIG. 2 and FIG. 3 , the present invention also provides a drum washing machine, which includes a casing 1 and an outer tub 2 , and the outer tub 2 is supported and arranged inside the casing 1 by the aforementioned vibration-damping support mechanism 10 , so that the outer tub 2 forms a support and buffers the vibration of the outer barrel 2.

Specifically, the drum washing machine includes two groups of vibration-damping support mechanisms 10, wherein, the two groups of vibration-damping support mechanisms 10 are relatively arranged on both sides of the bottom of the outer tub 2; , the second hinge hole and the third hinge hole of the vibration-damping support mechanism 10 are hinged to the bottom plate of the housing 1 .

As shown in FIG. 2 and FIG. 3 , the bottom ends of the vibration-damping support mechanism 10 are all fixed to the bottom plate of the washing machine housing 1 , thereby lowering the stress point of the whole vibration and reducing the vibration. In this application, two sets of vibration-damping support mechanisms 10 are used to jack up the entire outer tub of the washing machine so that the outer tub 2 is at the center of the two sets of vibration-damping support mechanisms 10 . When the washing machine is running, the left and right vibrations of the washing machine will be decomposed into horizontal and vertical forces due to the existence of the vibration-damping support device. If it is canceled out, only the force in the vertical direction remains, and now the elastic buffer device 14 between the two support arms will play a role to weaken the force in the vertical direction and reduce the vibration of the whole system. Generally, each group of vibration-damping support mechanisms 10 includes at least two vibration-damping support mechanisms 10 uniformly arranged along the axial direction of the tub 2 , that is, there are at least four vibration-damping support mechanisms 10 .

Preferably, after installation, the angle between the first support arm 11 and the third support arm 13 is greater than 120°, so as to prevent the first support arm 11 from being in a vertical state and ensure that the elastic buffer device 14 is always in a stressed state, thereby Improve reliability.

Preferably, in the vertical direction, the axis of the outer tub 2 is located between the two sets of vibration-damping support mechanisms 10, and the first hinge hole is located between the second hinge hole and the third hinge hole. On the one hand, it is more conducive to reducing vibration. ; On the other hand, the strength requirements of the elastic buffer device 14 can also be reduced.

From the above description, it can be seen that the above-mentioned embodiments of the present invention have achieved the following technical effects:

According to the vibration-damping support mechanism 10 and the drum washing machine of the present invention, by setting a rigid first support arm 11 and a second support arm 12, and an adjustable length adjustment arm, and on the first support arm 11 and the second support arm 12 An elastic buffer device 14 is arranged in between, and the three support arms cooperate with the elastic buffer device 14 to change the transmission direction of vibration and strengthen the loss of vibration energy, thereby effectively reducing vibration.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (9)

1. A damping support mechanism, characterized in that, comprises a first support arm (11), a second support arm (12), a third support arm (13) and an elastic buffer device (14), wherein the first A support arm (11) and the second support arm (12) are rigid arms with fixed length, and the third support arm (13) is an adjustable arm with adjustable length; The first end of the first support arm (11), the first end of the second support arm (12) and the first end of the third support arm (13) are hingedly connected by a first hinge shaft; The second end of the first support arm (11) is provided with a first hinge hole hinged with the supported object; the second end of the second support arm (12) has a second hinge hole hinged with the fixed object , the second end of the third support arm (13) has a third hinge hole hinged with the fixture, and the first hinge hole, the second hinge hole and the third hinge hole are distributed in a triangle; The elastic buffer device (14) is respectively connected to the first support arm (11) and the second support arm (12) to buffer the first support arm (11) and the second support arm (12) Angle changes between. 2. The vibration-damping support mechanism according to claim 1, characterized in that, The elastic buffer device (14) includes an arc-shaped guide rail and a spring matched with the arc-shaped guide rail. 3. The vibration-damping support mechanism according to claim 2, characterized in that, The arc-shaped guide rail includes an arc-shaped guide rail sliding sleeve and an arc-shaped sliding rod that is slidable relative to the arc-shaped guide rail sliding sleeve. An accommodation chamber is formed inside the arc-shaped guide rail sliding sleeve, and the spring is arranged in the accommodation chamber middle. 4. The vibration damping support mechanism according to claim 1, characterized in that, The third support arm (13) includes a length-adjustable telescopic assembly (15), and the telescopic assembly (15) is a spring assembly, a hydraulic assembly, a magnetic assembly or a magnetic levitation assembly. 5. A drum washing machine, comprising a housing (1) and an outer tub (2), characterized in that the outer tub (2) passes the vibration-damping support mechanism (10) according to any one of claims 1 to 4 The support is arranged inside the housing (1). 6. The drum washing machine according to claim 5, characterized in that, The drum washing machine includes two sets of vibration-damping support mechanisms (10), wherein the two sets of vibration-damping support mechanisms (10) are relatively arranged on both sides of the bottom of the outer tub (2); and the vibration-damping support mechanisms The first hinge hole of the mechanism (10) is hinged with the outer tub (2), the second hinge hole and the third hinge hole of the vibration-damping support mechanism (10) are hinged with the housing (1) base plate hinged. 7. The drum washing machine according to claim 6, characterized in that, In the vertical direction, the axis center of the outer tub (2) is located between two groups of the shock-absorbing support mechanisms (10), and the first hinge hole is located between the second hinge hole and the third hinge hole. between holes. 8. The drum washing machine according to claim 6, characterized in that, The included angle between the first support arm (11) and the third support arm (13) is greater than 120°. 9. The drum washing machine according to claim 6, characterized in that, Each set of the vibration-damping support mechanisms (10) includes at least two vibration-damping support mechanisms (10) uniformly arranged along the axial direction of the outer tub (2).