CN201202675Y

CN201202675Y - Non-return device of dish washer drain pump

Info

Publication number: CN201202675Y
Application number: CNU200820098466XU
Authority: CN
Inventors: 温炯
Original assignee: Midea Group
Current assignee: Midea Group Co Ltd
Priority date: 2008-05-27
Filing date: 2008-05-27
Publication date: 2009-03-04
Anticipated expiration: 2018-05-27

Abstract

The utility model relates to a non return device of dish washer drain pump, including drain pump (1), install at the non return piece (3) of drain pump drainage port, it suspends non return piece (3) and connects at the top of drainage port, its characterized in that the lower part of the non return terminal surface (11) of drain pump outlet forms the inclined plane to the drainage direction protrusion and becomes certain contained angle with the vertical direction, and non return piece (3) slope is leaned on non return terminal surface (11). The utility model discloses owing to adopt the lower part of the non return terminal surface of drain pump outlet to the drainage direction protrusion form the inclined plane and become certain contained angle with the vertical direction, the non return piece slope leans on the structure at the non return terminal surface, the non return piece is hugged closely on the non return terminal surface under self action of gravity, lower when the drain pipe is hung, when residual water in it applys less pressure for it, the non return piece also can effectively seal the outlet, consequently, in the sewage in the drain pipe can not the reflux drinking cup, can not cause the pollution to the drinking cup. The utility model discloses simple structure, the anti-backflow ability reinforce.

Description

A kind of check device of dish washing-machine water-draining pump

Technical field:

The utility model is a kind of check device of dish washing-machine water-draining pump, belongs to the improvement technology of the check device of dish washing-machine water-draining pump.

Background technique:

Existing dishwasher is to prevent that the water in the inner bag from flowing out when washing; waste pipe can be hung high 0.4-1.0 rice usually; when draining pump 1 quits work; residual sewage in the waste pipe 2 can flow back to the water tumbler 4 that is positioned at the draining pump top by draining pump; cause pollution to water tumbler; for addressing the above problem; the drain opening of existing dish washing-machine water-draining pump 1 is typically provided with check device; as shown in Figure 1; the non-return sheet 3 of check device is vertically mounted on the drain port place; the non-return sheet is connected the drain port top; it is nature and just gently leans against on the non-return end face of drain opening when sagging; the non-return sheet can move freely to drainage direction; though the check device of said structure can prevent that the residual sewage in the waste pipe flows back in the water tumbler when draining pump quits work; but also have following problem: when waste pipe 2 hang higher the time; the pressure that water column produces in the waste pipe is higher; the sealing effect of non-return sheet is better; do not have in the sewage refluence backwater cup; but when draining pipe hanger low; the pressure that water column produces is less; the non-return sheet just can not well seal drain port; after dishwasher leaves standstill a period of time; the residual sewage water inlet cup that will slowly flow backwards in the waste pipe; sewage can go bad and sends bad smell, the severe contamination Water cup of dish-washing machine under the long situation of time.

The model utility content:

The purpose of this utility model is to consider the problems referred to above and provides a kind of simple in structure, when draining pipe hanger low, can drain port effectively be sealed, and can not make residual sewage in the waste pipe flow to the check device of the dish washing-machine water-draining pump in the water tumbler.

The technical solution of the utility model is: a kind of check device of dish washing-machine water-draining pump, comprise draining pump, be installed in the non-return sheet of draining pump drain port, wherein the non-return sheet is connected the top of drain port, the bottom of the non-return end face of described draining pump drain opening forms an angle to drainage direction protrusion formation inclined-plane and with Vertical direction, and the non-return sheet tilts to lean against on the non-return end face.

The utility model is owing to adopt the bottom of the non-return end face of draining pump drain opening to form an angle to drainage direction protrusion formation inclined-plane and with Vertical direction, the non-return sheet tilts to lean against the structure of non-return end face, the non-return sheet is under the self gravitation effect, be close on the non-return end face, lower when the draining pipe hanger is when the residuary waters in it applies less pressure to it, the non-return sheet also can effectively seal drain opening, therefore, the sewage in the waste pipe can not flow backwards in the backwater cup, can not pollute water tumbler.The utility model is simple in structure, and the anti-back flow ability is strong.

Description of drawings:

Fig. 1 be prior art structural representation;

Fig. 2 is a structural representation of the present utility model.

Embodiment:

As shown in Figure 2, the check device of present embodiment dish washing-machine water-draining pump, comprise draining pump 1, be installed in the non-return sheet 3 of draining pump drain port, wherein non-return sheet 3 is connected the top of drain port, the bottom of the non-return end face 11 of described draining pump drain opening forms an angle to drainage direction protrusion formation inclined-plane and with Vertical direction, and non-return sheet 3 tilts to lean against on the non-return end face 11.

When waste pipe 2 hang low the time, the non-return sheet 3 of check device of the present utility model is close on the non-return end face 11 under the self gravitation effect, lower when the draining pipe hanger, when the residuary waters in it applied less pressure to it, non-return sheet 3 also can effectively seal drain port.

Claims

1, a kind of check device of dish washing-machine water-draining pump, comprise draining pump (1), be installed in the non-return sheet (3) of draining pump drain port, wherein non-return sheet (3) is connected the top of drain port, the bottom that it is characterized in that the non-return end face (11) of described draining pump drain opening forms an angle to drainage direction protrusion formation inclined-plane and with Vertical direction, and non-return sheet (3) tilts to lean against on the non-return end face (11).