CN201679729U

CN201679729U - Double-ended draining pump

Info

Publication number: CN201679729U
Application number: CN2010201573440U
Authority: CN
Inventors: 战洋
Original assignee: Nanjing LG Panda Appliance Co Ltd
Current assignee: Nanjing LG Panda Appliance Co Ltd
Priority date: 2010-04-12
Filing date: 2010-04-12
Publication date: 2010-12-22
Anticipated expiration: 2020-04-12

Abstract

The utility model discloses a double-ended draining pump, comprising a straight linear motor, the two ends of the linear motor are respectively provided with a pump body, the two pump bodies are in a mirror symmetry, each pump body comprises a water pipe and a pump head, the water pipe is horizontally installed at the top of the pump head and is communicated with the pump head, on the water pipe and at the two sides of the pump head are respectively provided a unidirectional water inlet valve and a unidirectional water outlet valve; between the bottom of the pump head and the linear motor is provided a rubber film driven by the linear motor and used for blocking the pump head. The double-ended draining pump in the utility model is advantageous in that when the linear vacuum pump is used, due to simple and reliable structure, service life of pump can be effectively improved, due to the no impeller structure, noise can be effectively reduced, due to a unidirectional filtering valve assembled onto the water inlet hole, the entering of the foreign bodies can be effectively reduced; due to the simultaneous draining of the two pump bodies adopted, draining time can be greatly saved.

Description

The double end draining pump

Technical field

The utility model relates to a kind of pump, is a kind of double end draining pump specifically.

Background technique

In general, washing machine is to utilize the effect of scouring water and washing agent and by washing, cleaning, dehydration, drying and other steps, removes the device of the dirt that is stained with in the washing such as the clothes that holds in the cylinder, pillow.Existing washing machine mainly utilizes vane wheel type centrifugal pump to pump waste water, but the shortcoming of vane wheel type centrifugal pump is: the life-span of pump is short, the pump head serious wear; The noise of pump is big, particularly the noise of impeller startup; The filtrating equipment weak effect of pump, foreign matter can snarl impeller.

Summary of the invention

The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of simple in structure, can improve the life-span of pump and reduce the double end draining pump of the noise of pump.

In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of double end draining pump, comprise linear electric motor, two at linear electric motor is separately installed with the pump housing, two pump housings are the mirror image symmetry, each pump housing comprises water pipe and pump head, and the water pipe level is installed in the top of pump head and communicates with pump head, is separately installed with unidirectional inlet valve and unidirectional outlet valve on water pipe and in the both sides of pump head; Between the bottom of pump head and linear electric motor, be provided with and be used for sealing the rubber membrane of pump head by linear motor driving.

Described linear electric motor comprise motor casing, are provided with single coil in motor casing, are equipped with in coil to drive the iron core that rubber membrane is done concavo-convex motion, are with the elastic device that restoring force is provided to iron core on iron core, and iron core is between described two rubber membranes.

Inlet at described water pipe is provided with filter screen, is used for the impurity of filtered water, can effectively reduce foreign matter and enter.

Working principle of the present utility model: with the civil power drive coil after the rectification, iron core can be subjected to the attraction force of rule, utilizes elastic device that restoring force is provided again, and then iron core will be done straight reciprocating motion.Iron core moves downward, and it is downward to order about in the upper pump casing rubber membrane, thereby makes upper pump casing enter the suction state, and rubber membrane is also downward in the lower pump body simultaneously, makes to enter the setting-out state in the lower pump body; Iron core moves upward, and orders about in the upper pump casing rubber membrane upwards, thereby makes and enter the setting-out state in the upper pump casing; Rubber membrane also makes progress in the lower pump body simultaneously, thereby makes lower pump body enter the suction state.

Compared with prior art, the utility model has the advantages that use the straight line vacuum pump after because simple and reliable for structure, no blade wheel structure can effectively improve the working life of pump, owing to can effectively reduce noise, owing to install unidirectional filter tap additional in the water inlet, can effectively reduce foreign matter and enter; Adopt the draining simultaneously of two pump housings, can save water discharge time greatly.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the sectional view of Fig. 1.

Embodiment

The utility model is described in further detail below in conjunction with accompanying drawing.

As depicted in figs. 1 and 2, the utility model drainage pump of washing machine comprises linear electric motor 1, these linear electric motor 1 comprise motor casing 11, in motor casing 11, be provided with single coil 12, iron core 13 is installed in coil 12, on iron core 13, be with the elastic device 14 that restoring force is provided to iron core 13; Top and bottom at motor casing 11 are separately installed with the pump housing, two pump housings are the mirror image symmetry, each pump housing comprises water pipe 2 and pump head 3, water pipe 2 levels are installed in the top of pump head 3 and communicate with pump head 3, on water pipe 2 and in the both sides of pump head 3, be separately installed with unidirectional inlet valve 4 and unidirectional outlet valve 5, between the bottom of pump head 3 and motor casing 11, be provided with the rubber membrane 6 that drives and be used for sealing pump head 3 by iron core 13, be provided with filter screen 7 in the inlet of water pipe 2.Iron core 13 is between two rubber membranes 6 and be used for driving rubber membrane 6 and do concavo-convex motion.

The operating principle of iron core: with the civil power drive coil after the rectification, iron core can be subjected to the attraction force of rule, utilizes elastic device that restoring force is provided again, and then iron core will be done straight reciprocating motion.

During use, iron core moves downward, and it is downward to order about in the upper pump casing rubber membrane, thereby makes in the upper pump casing that pressure diminishes in the pump head chamber, and pressure diminishes in the chamber, and water is in inlet valve inflow pump head cavity; Simultaneously rubber membrane is also downward in the lower pump body, makes in the lower pump body that pressure becomes big in the pump head chamber, and the pressure change extrudes the water in the pump head chamber greatly from outlet valve in the chamber in; Iron core moves upward, and orders about in the upper pump casing rubber membrane upwards, thereby makes in the upper pump casing that pressure becomes big in the pump head chamber, and the pressure change extrudes the water in the pump head chamber greatly from outlet valve in the chamber in; Simultaneously rubber membrane also makes progress in the lower pump body, thereby makes in the lower pump body that pressure diminishes in the pump head chamber, and pressure diminishes in the chamber, and water is in inlet valve inflow pump head cavity.

Adopt unidirectional inlet valve and unidirectional outlet valve in the utility model, so just can only allow water to enter the pump head chamber, can only allow water to go out then from the pump head chamber.

The above only is a preferred implementation of the present utility model.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model principle, can also make some modification and improvement, these also should be considered as belonging to protection domain of the present utility model.

Claims

1. double end draining pump, it is characterized in that: comprise linear electric motor (1), two at linear electric motor (1) is separately installed with the pump housing, two pump housings are the mirror image symmetry, each pump housing comprises water pipe (2) and pump head (3), water pipe (2) level is installed in the top of pump head (3) and communicates with pump head (3), is separately installed with unidirectional inlet valve (4) and unidirectional outlet valve (5) on water pipe (2) and in the both sides of pump head (3); Between the bottom of pump head (3) and linear electric motor (1), be provided with the rubber membrane (6) that drives and be used for sealing pump head (3) by linear electric motor (1).

2. double end draining pump according to claim 1, it is characterized in that: described linear electric motor (1) comprise motor casing (11), in motor casing (11), be provided with single coil (12), in coil (12), be equipped with and drive the iron core (13) that rubber membrane (6) is done concavo-convex motion, be with the elastic device (14) that restoring force is provided to iron core (13) on iron core (13), iron core (13) is positioned between described two rubber membranes (6).

3. double end draining pump according to claim 1 is characterized in that: the inlet at described water pipe (2) is provided with filter screen (7).