CN201473784U

CN201473784U - Noise reduction and anti-slit structure for drainage pump of washing machine

Info

Publication number: CN201473784U
Application number: CN2009201710500U
Authority: CN
Inventors: 徐定善
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-08-17
Filing date: 2009-08-17
Publication date: 2010-05-19
Anticipated expiration: 2019-08-17

Abstract

The utility model relates to a noise reduction and anti-slit structure for a drainage pump of a washing machine, which comprises a pump body, an impeller, a shifting block, a bearing sleeve and a bearing. The outer end of the pump body is connected with the impeller internally provided with the rotary shifting block; the bearing sleeve is sleeved outside the bearing and is in shaft connection with the rotor; two columnar rubber blocks are additionally arranged between the shifting block and the inner side of the impeller; a corrugated channel is formed on the inner wall of the pump body; and a double sealing ring is arranged between the bearing and the hard bearing sleeve. The utility model has the advantages that the noise of the drainage pump during the operation is reduced, the service life of the complete machine is prolonged; the anti-slit performance of the drainage pump can be improved; and because the corrugated channel is formed in a cavity of the pump body, the noise of the drainage pump is reduced from 80 dB to below 40 dB in a semi-hydrated state.

Description

The noise reduction of drainage pump of washing machine and anti-sediment structure

Technical field

The utility model relates to automatic washing machine draining pump structure, specifically a kind of noise reduction of drainage pump of washing machine and anti-sediment structure.

Background technology

The existing drainage pump of washing machine in market is in operation and sends very big noise through regular meeting, infiltrates easily between motor stator and rotor at draining silt in service, cause torque to descend, even obstruction can't be rotated it.As the impeller part, its inside configuration is provided with setting ahead of can rotating flexibly specifically, but shifting block when in impeller, rotating can and the impeller endosome between rigid collision produce noise, and the water on the impeller can rebound on the pump housing inwall and produces certain noise; Rise the factor of making an uproar on the other hand under pump housing inner chamber half water state, its noise is about more than the 80dB; In addition, the sealing of a lot of use in washing machine pump housings is relatively poor, and the seal member between bearing and hard bearing holder (housing, cover) is tight inadequately, and this just makes silt can inevitably enter between rotor and stator, has finally influenced the operation work of washing machine.

The utility model content

At above defective, the utility model provide a kind of low cost, noise reduction obviously, have the dual-seal circle, can prolong the noise reduction and the anti-sediment structure of the drainage pump of washing machine of machine life, thereby reach the effect that good noise reduction and anti-silt block.

For achieving the above object, the utility model is by the following technical solutions:

A kind of noise reduction of drainage pump of washing machine and anti-sediment structure comprise the pump housing, impeller, shifting block, bearing holder (housing, cover) and bearing, establish the impeller of rotation shifting block in the outer end of the described pump housing connects, and the described bearing outside is with bearing holder (housing, cover) and carries out axle with rotor and is connected; Set up two column block rubbers between described shifting block and the impeller inboard, pump housing inwall is provided with the corrugated irrigation canals and ditches; Between described bearing and hard bearing holder (housing, cover) the dicyclo sealing ring is set, described sealing ring is made up of outer ring set and inner ring sleeve.

The utility model beneficial effect is: by setting up two column block rubbers with cushioning effect between draining pump rotor shifting block and impeller, the noise when having reduced the draining pump operation has prolonged complete machine service life; The dicyclo sealing shroud is set outside bearing, can improves the anti-silt performance of draining pump; Offer the corrugated irrigation canals and ditches at pump housing inner chamber, make draining pump under half water state, noise is dropped to below the 40dB by original 80dB.

Description of drawings

With reference to the accompanying drawings the utility model is described in further detail below.

Fig. 1 is the noise reduction and the anti-sediment structure decomposing schematic representation of the described drainage pump of washing machine of the utility model embodiment;

Fig. 2 is the noise reduction of the described drainage pump of washing machine of the utility model embodiment and the sealing ring part-structure schematic diagram of anti-sediment structure;

Fig. 3 is the noise reduction of the described drainage pump of washing machine of the utility model embodiment and the impeller denoising structure schematic diagram of anti-sediment structure;

Fig. 4 is the noise reduction of the described drainage pump of washing machine of the utility model embodiment and the pump housing inner chamber denoising structure schematic diagram of anti-sediment structure.

Among the figure:

1, the pump housing; 2, corrugated irrigation canals and ditches; 3, impeller; 4, rubber column; 5, shifting block; 6, back-up ring; 7, bearing holder (housing, cover); 8, sealing ring; 9, bearing; 10, rotor; 11, outer ring set; 12, inner ring sleeve.

The specific embodiment

As Fig. 1, Fig. 3, shown in Figure 4, the noise reduction and the anti-sediment structure of the described drainage pump of washing machine of the utility model embodiment, comprise the pump housing 1, impeller 3, shifting block 5, bearing holder (housing, cover) 7 and bearing 9, in connecting, the outer end of the described pump housing 1 establishes the impeller 3 of rotation shifting block 5, described bearing 9 outsides are with bearing holder (housing, cover) 7 and are connected with 10 of rotors, between bearing 9 downsides and the impeller 3 back-up ring 6 are set; Because shifting block 5 produces noise and damage when stirring wheel rotation in impeller 3, between shifting block 5 and impeller 3 inboards, set up two column block rubbers 4 to play cushioning effect, thereby prevent when shifting block 5 from rotating in impeller 3 and the generation of the rigid collision between impeller 3 endosomes noise, have the effect that reduces noise; Draining pump is at half water state, when impeller 3 rotates in the pump housing 1 chamber, water on the impeller 3 can rebound on the pump housing 1 inwall and produce noise, and therefore at the pump housing 1 inwall some angles being set is that 26 ° corrugated irrigation canals and ditches 2 are to absorb rebound noise on the inwall of impeller 3.

As shown in Figure 2, the noise reduction and the anti-sediment structure of the described drainage pump of washing machine of the utility model embodiment, when its anti-sediment structure is provided with, enter and cause torque to descend between rotor 10 and stator for alleviating the fine sand or the mud of washing in the current, enter between rotor and stator with prevention silt so dicyclo sealing ring 8 is set at bearing 9 and 7 of hard bearing holder (housing, cover)s; Described sealing ring 8 is a dicyclo sealing shroud structure, is made up of with inner ring sleeve 12 outer ring set 11, can prevent to enter damage motor in the motor behind the sand erosion sealing ring 8, thereby increase machine life.

Claims

1. the noise reduction of a drainage pump of washing machine and anti-sediment structure, comprise the pump housing (1), impeller (3), shifting block (5), bearing holder (housing, cover) (7) and bearing (9), in connecting, the outer end of the described pump housing (1) establishes the impeller (3) of rotation shifting block (5), described bearing (9) outside is with bearing holder (housing, cover) (7), it is characterized in that: set up two column block rubbers (4) between described shifting block (5) and impeller (3) inboard; The described pump housing (1) inwall is provided with some corrugated irrigation canals and ditches (2); Between described bearing (9) and bearing holder (housing, cover) (7) sealing ring (8) is set.

2. the noise reduction of drainage pump of washing machine according to claim 1 and anti-sediment structure is characterized in that: described sealing ring (8) is made up of outer ring set (11) and inner ring sleeve (12).