CN210341410U

CN210341410U - Pulsator washing machine

Info

Publication number: CN210341410U
Application number: CN201920960102.6U
Authority: CN
Inventors: 刘兴龙; 张秀莲; 刘红
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-06-25
Filing date: 2019-06-25
Publication date: 2020-04-17
Anticipated expiration: 2029-06-25

Abstract

The utility model discloses a rotary drum washing machine, which relates to the technical field of vibration prevention of washing machines and comprises a box body and an inner barrel and an outer barrel, wherein the top end of a suspender is connected with the box body, the bottom end of the suspender is connected with the bottom end of the inner barrel and the outer barrel through a damping unit, one end of a vibration damper is hinged with the box body, and the other end of the vibration damper is hinged with the inner barrel and the outer barrel; the piston rod is movably arranged in the sleeve; the damping fin sets up in the sleeve or overlaps the outside of establishing at the piston rod for reduce the relative slip of sleeve and piston rod, and the blotter sets up on the piston rod for the relative position between control piston rod and the sleeve. The beneficial effects of the utility model are that, improve suspension system's anti eccentric ability among the rotary drum washing machine, avoid frequently shutting down under less eccentric distribution condition because of the clothing, the jib bending deformation and the box swell deformation problem that collision jib and box produced are constituteed to inside and outside bucket when solving the big eccentric distribution dehydration of clothing and starting.

Description

Pulsator washing machine

Technical Field

The utility model relates to a washing machine antivibration technical field, especially a rotary drum washing machine.

Background

When the impeller washing machine is started in a dewatering mode, the problem of vibration caused by the fact that the inner barrel and the outer barrel are in eccentric distribution is often solved, and when the eccentric load is large, the inner barrel and the outer barrel are in vibration, so that a safety switch is touched or a hanging rod and a box body are collided. The outer barrel touches the safety switch to stop the machine, and the user adjusts the eccentric distribution of the clothes to restart the machine to operate again, however, when the outer barrel collides with the hanger rod and the box body, the hanger rod is deformed, the bulge of the box body is deformed, and the normal use of the machine is affected when the bulge is serious. In order to avoid deformation of the outer barrel when the outer barrel collides with the box body and bulges, the inner side of the box body of the prior pulsator washing machine is pasted with anti-collision cotton, but the problem that the box body is deformed when being impacted cannot be solved.

In the prior art, a pulsator washing machine adopts a boom type vibration damping device, a vibration damping unit consisting of a spring and a damping element is connected with a boom seat at the lower part of an outer barrel at the lower end of a boom, and the upper end of the boom is connected with a washing machine box body. The hanger rod is connected with the inner and outer barrels and the box body in a ball hinge mode. The design of the suspension system is easy to cause the vibration instability phenomenon caused by the large vibration of the inner and outer barrels due to the large eccentric load of the clothes distribution, so that the vibration problem is caused.

In addition, the horizontal swing modal frequency of a suspension system formed by the suspender and the outer barrel is very low, the suspension system must pass through a resonance frequency interval when dehydration is started, and the damping coefficient of the suspension system is small, so that the problems that the inner barrel and the outer barrel form too large resonance displacement and collide a safety switch, the suspender and the box body when the eccentric distribution is large can occur.

SUMMERY OF THE UTILITY MODEL

The utility model aims at reducing the vibration that is big because of the eccentric load of clothing distribution causes big interior outer bucket component to appear vibrating unstability collision jib and box problem easily, designed a rotary drum washing machine.

In order to achieve the above object, the technical scheme of the utility model be, a rotary drum washing machine, constitute including box and interior outer bucket, interior outer bucket is constituteed and is in through the jib setting in the box, still include: one end of each shock absorber is hinged with the box body, and the other end of each shock absorber is hinged with the inner barrel and the outer barrel; wherein the shock absorber comprises: a sleeve; the piston rod is movably arranged in the sleeve; the damping fin is arranged in the sleeve or sleeved outside the piston rod and used for reducing the relative sliding between the sleeve and the piston rod; and the buffer pad is arranged on the piston rod and used for controlling the relative position between the piston rod and the sleeve.

Furthermore, the sleeve is hinged with the box body, and the piston rod is hinged with the inner barrel and the outer barrel.

Further, the piston rod is hinged with the box body, and the sleeve is hinged with the inner barrel and the outer barrel.

Further, the shock absorber is hinged with the bottom end formed by the inner barrel and the outer barrel.

Furthermore, the shock absorber is hinged with the top end formed by the inner barrel and the outer barrel.

Furthermore, the number of the hanging rods is four, the top ends of the hanging rods are connected with the box body, and the bottom ends of the hanging rods are connected with the bottom end formed by the inner barrel and the outer barrel through the vibration reduction unit.

Furthermore, the number of the vibration dampers is three or four, and the vibration dampers are uniformly distributed on the box body.

Further, still include safety switch, safety switch installs on the box and is located the outside that interior outer bucket is constituteed.

The utility model has the advantages that: the eccentricity resistance of a suspension system formed by the inner barrel and the outer barrel in the pulsator washing machine, the suspension rod and the vibration absorber is improved, frequent stopping of the clothes under the condition of smaller eccentric distribution is avoided, and the problems of bending deformation of the suspension rod and bulging of the box body caused by collision of the suspension rod and the box body by the outer barrel when the clothes are dehydrated and started in large eccentric distribution are solved; the damping of the suspension system is increased, so that the vibration is reduced during dehydration starting, and the occurrence probability of vibration instability is reduced; the damping of the suspension system during resonance is increased, the resonance response of the suspension system during starting is effectively controlled, but the damping during high-speed dehydration is not increased, and the vibration is prevented from being transmitted to the box body through the vibration absorber; when the eccentric load is too large, the inner barrel and the outer barrel are vibrated, the safety switch is directly touched to stop, and the collision between the safety switch and the suspender and the box body is avoided, so that the suspender and the box body are deformed and damaged.

Drawings

FIG. 1 is a schematic structural diagram of a pulsator washing machine according to the present application;

FIG. 2 is a top view of the pulsator washing machine of the present application;

FIG. 3 is a schematic structural view of a shock absorber according to the present application wherein the damping plate is disposed on the sleeve;

FIG. 4 is a schematic structural view of a shock absorber according to the present application, wherein the damping plate is disposed on the piston rod.

In the above figures, 1, a box body; 2. an inner barrel and an outer barrel; 3. a boom; 4. a shock absorber; 41. a sleeve; 42. a piston rod; 43. a damping fin; 44. a cushion pad; 51. a spring; 52. a damping element; 6. a safety switch.

Detailed Description

To further illustrate the technical means and effects of the present invention adopted to achieve the intended purpose of the present invention, the following detailed description is given to the embodiments, structures, features and effects according to the present invention with reference to the accompanying drawings and preferred embodiments as follows:

an impeller washing machine, as shown in fig. 1 to 4, comprises a box body 1, an inner barrel and an outer barrel assembly 2, a suspender 3 and at least three vibration absorbers 4. The clutch and the motor are arranged below the inner and outer barrel assembly 2, and the inner barrel in the inner and outer barrel assembly 2 can realize rotary motion under the driving of the motor.

The top of jib 3 is connected with box 1, and the bottom of jib 3 is passed through the shock attenuation unit and is connected with the bottom that interior outer barrel constitutes 2.

The present application focuses on designing the shock absorber 4 in detail, and as shown in fig. 3, the shock absorber 4 includes a sleeve 41, a piston rod 42, a damping plate 43(PU material), and a cushion 44. The piston rod 42 is movably arranged in the sleeve 41, as shown in fig. 3, the damping fin 43 is arranged in the sleeve 41, the piston rod 42 generates sliding friction with the damping fin 43 in the sliding process, so as to reduce the sliding distance between the sleeve 41 and the piston rod 42, the buffer pad 44 is arranged on the piston rod 42, when the inward sliding distance of the piston rod 42 is too large, the buffer pad 44 blocks the sliding distance of the piston rod 42 towards the inside of the sleeve 41, thereby ensuring that the inner and outer barrel assembly 2 cannot collide with the safety switch 6 (the safety switch 6 is suspended on the box body 1 and located at the outer side of the inner and outer barrel assembly 2), namely, the buffer pad 44 plays a role in controlling the relative position between the piston rod 42 and the sleeve 41. In fig. 4, the damper 43 is fitted around the outside of the piston rod 42, and can also perform the same function as described above.

One end of the shock absorber 4 is hinged with the box body 1, and the other end of the shock absorber 4 is hinged with the inner barrel and the outer barrel 2. Specifically, the sleeve 41 is hinged to the case 1, and the piston rod 42 is hinged to the inner and outer barrel assembly 2, for example, the piston rod 42 and the inner and outer barrel assembly 2 may be connected through a pin hole or a hook. Or the piston rod 42 is hinged with the box body 1, and the sleeve 41 is hinged with the inner barrel and the outer barrel 2.

The two methods are similar and play the same role. The quantity of shock absorber 4 is three or four, and shock absorber 4 equipartitions are on box 1, reduce and reduce the resonance that constitutes of interior outer bucket, avoid colliding the emergence of box 1, jib 3. In fig. 1, a damper 4 is hingedly connected to the bottom end of the inner and outer tub assembly 2. Or the vibration damper 4 is hinged with the top ends of the inner and outer barrel assemblies 2.

When the inner barrel assembly 2 and the outer barrel assembly 2 resonate, the vibration displacement is large, the sleeve 41 and the piston rod 42 slide relatively, and damping energy consumption is generated. When the inner and outer barrel assemblies 2 have large resonance displacement due to overlarge eccentric load, the buffer cushion 44 of the piston rod 42 is stopped at the sleeve 41 to limit the collision between the box body 1 and the suspender 3, so that the movement of the inner and outer barrel assemblies 2 points to the safety switch (6) A and is in touch shutdown with the safety switch. In addition, when the dehydration starts and crosses the resonance frequency interval to carry out high-speed dehydration, the vibration displacement of the inner and outer barrel components 2 is reduced, the sliding between the piston rod 42 and the inner and outer barrel components 2 is reduced, the damping of the whole shock absorber is correspondingly reduced, and the problem that the vibration of the shock absorber 4 is transmitted to the box body 1 during the high-speed dehydration is avoided.

The invention has been described above with reference to a preferred embodiment, but the scope of protection of the invention is not limited thereto, and various modifications can be made and equivalents can be substituted for elements thereof without departing from the scope of the invention, and features mentioned in the various embodiments can be combined in any way as long as there is no structural conflict, and any reference sign in the claims should not be construed as limiting the claim concerned, and the embodiments should be regarded as being exemplary and non-limiting in any way whatsoever. Therefore, all technical solutions that fall within the scope of the claims are within the scope of the present invention.

Claims

1. The utility model provides a rotary drum washing machine, includes that box (1) and interior outer bucket constitute (2), interior outer bucket constitute (2) and set up through jib (3) in box (1), its characterized in that still includes:

the device comprises at least three vibration absorbers (4), wherein one end of each vibration absorber (4) is hinged with the box body (1), and the other end of each vibration absorber (4) is hinged with the inner barrel assembly (2) and the outer barrel assembly (2);

wherein the damper (4) comprises:

a sleeve (41);

the piston rod (42), the said piston rod (42) is set up in the said bush (41) movably;

the damping fin (43) is arranged in the sleeve (41) or sleeved outside the piston rod (42) and used for reducing the relative sliding between the sleeve (41) and the piston rod (42); and

a cushion (44), the cushion (44) being disposed on the piston rod (42) for controlling a relative position between the piston rod (42) and the sleeve (41).

2. A pulsator washing machine according to claim 1, wherein the sleeve (41) is hinged to the casing (1), and the piston rod (42) is hinged to the inner and outer tub assemblies (2).

3. A pulsator washing machine according to claim 1, wherein the piston rod (42) is hinged to the casing (1), and the sleeve (41) is hinged to the inner and outer tub assemblies (2).

4. The pulsator washing machine as claimed in claim 1, wherein said vibration reducer (4) is hinged to the bottom ends of the inner and outer tub assemblies (2).

5. The pulsator washing machine as claimed in claim 1, wherein said vibration reducer (4) is hinged to the top end of the inner and outer tub assemblies (2).

6. The pulsator washing machine as claimed in claim 1, wherein said suspension rods (3) are four in number, and said suspension rods (3) are connected at the top end thereof to said casing (1) and at the bottom end thereof to the bottom end of said inner and outer tub assembly (2) through a vibration damping unit.

7. A pulsator washing machine according to claim 1, wherein the number of said dampers (4) is three or four, and said dampers (4) are uniformly distributed on said casing (1).

8. The pulsator washing machine as claimed in claim 1, further comprising a safety switch (6), wherein the safety switch (6) is installed on the cabinet (1) and located outside the inner and outer tub assemblies (2).