Shock absorption structure of spin dryer tube of washing machine

Abstract

The utility model relates to a damping structure for a spin dryer tube of a washing machine, and the damping structure comprises a movable plate which sleeves a driving mechanism for driving the spin dryer tube to rotate and is coaxial with the driving mechanism and the spin dryer tube; the three lower connecting plates are evenly fixed to the edge of the movable plate in the circumferential direction of the movable plate. The three upper connecting plates are uniformly fixed to the bottom of the spin dryer tube in the circumferential direction of the spin dryer tube, and the upper connecting plates are located over the lower connecting plates; the three elastic damping bodies are located between the lower connecting plate and the upper connecting plate, and the upper ends and the lower ends of the elastic damping bodies are clamped on the upper connecting plate and the lower connecting plate respectively. The eccentric force of the spin dryer tube is absorbed and resisted by utilizing the elasticity of the elastic damping body, so that the gravity center of the spin dryer tube returns to the central axis of the spin dryer tube, the spin dryer tube can rapidly enter high-speed rotation, the elastic damping body can rapidly recover after deformation, meanwhile, the noise is small, and the service life is long. Damage to a washing machine body, a driving mechanism, a transmission shaft and the like is small, and the service life of the washing machine is prolonged.

Description

Technical Field

[0001] The present application relates to the field of vibration reduction of washing machines, and in particular to a vibration reduction structure of a spin-drying drum of a washing machine. Background Art

[0002] With the improvement of living standards, washing machines have gradually entered thousands of households, and have gradually become a necessity in people's lives.

[0003] With the advancement of washing machine technology, automatic washing machines with washing and spinning functions have gradually become popular. No matter it is a separate washing machine that washes and spins clothes, or a washing and spinning washing machine, the structural principle of the washing part is relatively simple, while the structural principle of the spinning part is usually more complicated. The main reason is that when the washing machine is spinning and dehydrating clothes, since there are multiple wet clothes in the barrel, it is difficult for the center of the spin-drying barrel to be on the central axis of the spin-drying barrel, thereby forming an eccentricity phenomenon. Therefore, when the driving mechanism drives the spin-drying barrel to rotate, the spin-drying barrel will appear eccentric, causing the output shaft to vibrate strongly. Based on this, when the spin-drying barrel is designed, a shock-absorbing structure is set between the spin-drying barrel and the driving mechanism to offset the eccentric force formed by the eccentric spin-drying barrel when it rotates, so that the center of gravity of the spin-drying barrel returns to the central axis of the spin-drying barrel, so that the spin-drying barrel can quickly enter high-speed rotation, thereby spinning and dehydrating the clothes.

[0004] When the existing washing machines are in use, their shock absorbing structures usually have problems such as poor shock absorbing effect and loud noise, which causes the spin dryer drum to be unable to quickly enter high-speed rotation, thereby causing the spin dryer drum to cause great damage to the washing machine body, driving mechanism and transmission shaft, etc., affecting the service life of the washing machine. Summary of the invention

[0005] In order to make the shock-absorbing structure better absorb shock when the spin dryer drum of the washing machine is in operation, the present application provides a shock-absorbing structure for the spin dryer drum of the washing machine, which connects the upper connecting plate and the lower connecting plate through an elastic shock-absorbing body, and uses the elastic absorption of the elastic shock-absorbing body to resist the eccentric force of the spin dryer drum, so that the center of gravity of the spin dryer drum returns to the central axis of the spin dryer drum, so that the spin dryer drum can quickly enter high-speed rotation, and because the elastic shock-absorbing body itself has elasticity, it can quickly recover after the elastic shock-absorbing body is deformed, and it has low noise, and causes less damage to the washing machine body, driving mechanism and transmission shaft, thereby extending the service life of the washing machine.

[0006] The present application provides a washing machine spin-drying drum shock-absorbing structure, which adopts the following technical solution:

[0007] A washing machine spin-drying drum shock-absorbing structure, comprising:

[0008] The movable plate is sleeved on the driving mechanism for driving the spin-drying tub to rotate, and is coaxial with the driving mechanism and the spin-drying tub;

[0009] At least three lower connecting plates are evenly fixed to the edge of the movable plate along the circumference of the movable plate;

[0010] At least three upper connecting plates are evenly fixed to the bottom of the spin drying tub along the circumference of the spin drying tub, and the upper connecting plates are located directly above the lower connecting plates; and

[0011] At least three elastic shock-absorbing bodies are located between the lower connecting plate and the upper connecting plate and are evenly distributed along the circumference of the movable plate. The upper end and the lower end of the elastic shock-absorbing body are respectively clamped on the upper connecting plate and the lower connecting plate for shock absorption.

[0012] Preferably, an upper opening slot is provided on the upper connecting plate, a lower opening slot is provided on the lower connecting plate, the elastic shock-absorbing body includes an elastic hanging ring and two clamps, the two clamps are respectively located on the outer walls at both ends of the elastic hanging ring, and the two clamps are respectively clamped in the upper opening slot and the lower opening slot.

[0013] Preferably, the clamping head includes a hanging head and a hanging neck, the two ends of the hanging neck are respectively fixedly connected to the outer walls of the hanging head and the elastic hanging ring, the two hanging necks are respectively located in the upper opening slot and the lower opening slot, and the two hanging heads are respectively clamped on the upper connecting plate and the lower connecting plate.

[0014] Preferably, the elastic shock-absorbing body also includes a compression spring and two limit columns, the two limit columns are symmetrically arranged on the inner wall of the elastic hanging ring, and the two limit columns are coaxially arranged, and the two ends of the compression spring are respectively sleeved on the two limit columns.

[0015] In summary, this application includes the following beneficial technical effects:

[0016] 1. The present application connects the upper connecting plate and the lower connecting plate through an elastic shock-absorbing body, and utilizes the elastic absorption of the elastic shock-absorbing body to resist the eccentric force of the spin-drying tub, so that the center of gravity of the spin-drying tub returns to the central axis of the spin-drying tub, so that the spin-drying tub can quickly enter high-speed rotation, and because the elastic shock-absorbing body itself has elasticity, it can quickly recover after the elastic shock-absorbing body is deformed, and its noise is small, and the damage caused to the washing machine body, driving mechanism and transmission shaft is small, thereby extending the service life of the washing machine.

[0017] 2. In the present application, a compression spring is arranged in the middle of the elastic hanging ring, so that the elastic hanging ring can quickly recover after deformation, and the compression spring can prevent the elastic hanging ring from excessive deformation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1It is a schematic diagram of the overall structure of the spin drying tub, driving mechanism and vibration reduction structure in the embodiment of the present application.

[0019] Figure 2 yes Figure 1 Exploded diagram of the invention (in which the elastic shock-absorbing body and the upper connecting plate are fully shown).

[0020] Figure 3 It is an exploded view of the shock absorbing structure in the embodiment of the present application.

[0021] Figure 4 It is a schematic diagram of the structure of the elastic shock-absorbing body in the embodiment of the present application.

[0022] Explanation of the reference numerals in the accompanying drawings: 1. movable plate; 2. lower connecting plate; 21. lower opening slot; 3. upper connecting plate; 31. upper opening slot; 4. elastic shock-absorbing body; 41. elastic hanging ring; 42. clamping head; 421. hanging neck; 422. hanging head; 43. compression spring; 44. limiting column; 100. driving mechanism; 200. transmission assembly; 300. spin-drying barrel. DETAILED DESCRIPTION

[0023] The present application is further described in detail below in conjunction with the accompanying drawings.

[0024] The embodiment of the present application discloses a shock absorbing structure for a spin-drying drum of a washing machine.

[0025] Reference Figure 1 and Figure 2 The shock absorbing structure includes a movable plate 1, a lower connecting plate 2, an upper connecting plate 3 and an elastic shock absorbing body 4.

[0026] The movable plate 1 is made of plastic and is integrally formed by injection molding. The movable plate 1 is sleeved on the driving mechanism 100. The output end of the driving mechanism 100 is connected to the spin-drying tub 300 through the transmission assembly 200. The driving mechanism 100 is used to drive the spin-drying tub 300 to rotate. The movable plate 1 is coaxially installed with the driving mechanism 100 and the spin-drying tub 300. The driving mechanism 100 can be a motor or a combination of a motor and a reducer, and the transmission assembly 200 can be composed of components such as a transmission shaft and a connecting sleeve.

[0027] Reference Figure 2 and Figure 3 , the number of lower connecting plates 2 is at least three, and at least three lower connecting plates 2 are evenly fixed at the edge of the movable plate 1 along the circumferential direction of the axis of the movable plate 1. In this embodiment, the number of lower connecting plates 2 is three, and the lower connecting plates 2 can be fixed on the movable plate 1 by bolt connection, or the lower connecting plates 2 and the movable plate 1 are integrally injection molded by plastic material. .

[0028] A lower opening slot 21 is formed on the lower connecting plate 2 . The lower opening slot 21 is located at an end of the lower connecting plate 2 away from the movable plate 1 , and the opening of the lower opening slot 21 faces a side away from the center of the movable plate 1 .

[0029] Reference Figure 2 and Figure 3 The number of the upper connecting plates 3 is at least three, and at least three upper connecting plates 3 are evenly fixed to the bottom of the spin drying tub 300 along the circumferential direction of the axis of the spin drying tub 300, and the number of the upper connecting plates 3 is the same as the number of the lower connecting plates 2. In this embodiment, the number of the upper connecting plates 3 is also three, and the upper connecting plates 3 are fixed to the bottom of the spin drying tub 300 by bolt connection, and the upper connecting plates 3 are located directly above the lower connecting plates 2.

[0030] An upper opening slot 31 is formed on the upper connecting plate 3 , and the upper opening slot 31 is located on a side of the upper connecting plate 3 away from the central axis of the spin-drying tub 300 , and the opening of the upper opening slot 31 faces the side away from the central axis of the spin-drying tub 300 .

[0031] Reference Figure 2 and Figure 3 , the number of elastic shock absorbers 4 is at least three, the number of elastic shock absorbers 4 is the same as the number of upper connecting plates 3, and at least three elastic shock absorbers are evenly distributed along the circumferential direction of the axis of the movable plate 1. In this embodiment, the number of elastic shock absorbers 4 is three, the elastic shock absorbers 4 are located between the upper connecting plate 3 and the lower connecting plate 2, and the upper end of the elastic shock absorber 4 is clamped in the upper opening slot 31 of the upper connecting plate 3, and the lower end of the elastic shock absorber 4 is clamped in the lower opening slot 21 of the lower connecting plate 2. The elastic shock absorber 4 is made of rubber material or other materials that can achieve similar rubber functions. In this embodiment, the elastic shock absorber 4 is a rubber shock absorber.

[0032] Reference Figure 4 The elastic shock-absorbing body 4 includes an elastic hanging ring 41 and two clamps 42. The elastic hanging ring 41 is annular. The two clamps 42 are respectively located at the two ends of the elastic hanging ring 41. The clamps 42 include a hanging head 422 and a hanging neck 421. The hanging head 422 is truncated cone-shaped, and the hanging neck 421 is cylindrical. The side of the hanging head 422 close to the hanging ring 41 is integrally formed with one end of the hanging neck 421, and the other end of the hanging neck 421 is integrally formed with the outer wall of the hanging ring. When in use, the two hanging necks 421 are respectively located in the upper opening slot 31 of the upper connecting plate 3 and the lower opening slot 21 of the lower connecting plate 2, and the side surfaces of the two hanging heads 422 are respectively abutted and clamped on the upper end surface of the upper connecting plate 3 and the lower end surface of the lower connecting plate 2.

[0033] The elastic shock-absorbing body 4 also includes a compression spring 43 and two limit columns 44. The two limit columns 44 are symmetrically arranged on the inner wall of the hanging ring, and the limit columns 44 are integrally formed with the hanging ring. The two limit columns 44 are coaxially arranged, and the two ends of the compression spring 43 are respectively mounted on the two limit columns 44. The compression spring 43 can prevent the hanging ring from excessive deformation and help the hanging ring to return to its original state after deformation.

[0034] When in use, the driving mechanism 100 drives the spin-drying tub 300 to rotate through the transmission assembly 200. During the eccentric rotation of the spin-drying tub 300, the elastic shock-absorbing body 4 provides an upward force to the upper connecting plate 3 and the spin-drying tub 300, which helps the upper connecting plate 3 to support the edge of the spin-drying tub 300 so that the center of gravity of the spin-drying tub 300 returns to the central axis of the spin-drying tub 300, thereby allowing the spin-drying tub 300 to quickly enter high-speed rotation. Moreover, since the elastic shock-absorbing body 4 is elastic and made of rubber, the sound emitted by the shock-absorbing structure is relatively small when the elastic shock-absorbing body 4 absorbs shock, and it is not easy to emit noise during friction. At the same time, the structure is simple, easy to install, time-saving and silent.

[0035] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A shock absorbing structure for a washing machine spin-drying drum, characterized in that: include: The movable plate is sleeved on the driving mechanism for driving the spin-drying tub to rotate, and is coaxial with the driving mechanism and the spin-drying tub; At least three lower connecting plates are evenly fixed to the edge of the movable plate along the circumference of the movable plate; At least three upper connecting plates are evenly fixed to the bottom of the spin drying tub along the circumference of the spin drying tub, and the upper connecting plates are located directly above the lower connecting plates; and At least three elastic shock-absorbing bodies are located between the lower connecting plate and the upper connecting plate and are evenly distributed along the circumference of the movable plate. The upper end and the lower end of the elastic shock-absorbing body are respectively clamped on the upper connecting plate and the lower connecting plate for shock absorption.

2. A shock absorbing structure for a washing machine spin-drying drum according to claim 1, characterized in that: The upper connecting plate is provided with an upper opening slot, the lower connecting plate is provided with a lower opening slot, the elastic shock absorbing body comprises an elastic hanging ring and two clamping heads, the two clamping heads are respectively located on the outer walls at both ends of the elastic hanging ring, and the two clamping heads are respectively clamped in the upper opening slot and the lower opening slot.

3. A shock absorbing structure for a washing machine spin-drying drum according to claim 2, characterized in that: The clamping head includes a hanging head and a hanging neck, the two ends of the hanging neck are respectively fixedly connected to the outer walls of the hanging head and the elastic hanging ring, the two hanging necks are respectively located in the upper opening slot and the lower opening slot, and the two hanging heads are respectively clamped on the upper connecting plate and the lower connecting plate.

4. A shock absorbing structure for a washing machine spin-drying drum according to claim 1, characterized in that: The elastic shock-absorbing body also includes a compression spring and two limit columns. The two limit columns are symmetrically arranged on the inner wall of the elastic hanging ring, and the two limit columns are coaxially arranged. The two ends of the compression spring are respectively sleeved on the two limit columns.

Images