CN218372869U - Washing machine - Google Patents

Abstract

The utility model discloses a washing machine, which comprises a shell, wherein a water outlet is arranged on the shell; a drain pump installed in the housing for draining water; the drainage pump comprises a pump body, wherein a water inlet joint and a water outlet joint which are communicated are arranged on the pump body, and the water outlet joint is connected with the drainage outlet. The utility model discloses a set up water supply connector, the water outlet connector of intercommunication on the pump body, realize the emission to washing machine washing water, and will water outlet connector and the outlet connection on washing machine's the casing, the drain pipe clamp of the drain pipe and the fixed drain pipe when canceling water outlet connector and washing machine's casing intercommunication reduces the complexity of the assembly process of drain pump and washing machine's casing, has practiced thrift manufacturing cost.

Description

Washing machine

Technical Field

The utility model belongs to clothing treatment facility field, specifically speaking relates to a washing machine.

Background

Along with the increase of the types of washing machines, at present, more and more attention is paid to water resource saving, a drainage pump is installed on a drainage device of the washing machine by manufacturers of many washing machines during production, and a filtering device is arranged on the drainage pump, so that not only can foreign matters in washing water be filtered, but also high-position drainage can be realized.

Chinese patent application No. CN207031824U discloses a drain pump and a full-automatic washing machine using the same, wherein a detachable filter is arranged on the drain pump, a filter chamber is formed between the filter and the water inlet of the drain pump, the filter has a filtering function at the same time, and can filter foreign matters in water, reduce abnormal sounds generated by high-speed friction of the foreign matters, reduce the impeller failure rate of the drain pump, and improve the service life of the drain pump; the position of the mounting port of the filter is lower than the water inlet of the drainage pump, the position of the mounting port of the filter is lower than the water level of the water cavity of the drainage pump, the filter is detached, water in the whole machine can be emptied, and the phenomenon that stored water is deteriorated to generate peculiar smell is avoided. Although this structure can realize the drainage to avoid depositing water rotten and produce the peculiar smell, the delivery port of drain pump communicates with each other with the external world through the drain pipe, and the intercommunication structure is comparatively complicated, can not practice thrift manufacturing cost.

In view of this, the present invention is provided.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model lies in overcoming prior art's not enough, provides a washing machine, is linked together water supply connector and water connectors through setting up on the pump body of drain pump to with the outlet connection on water connectors and the washing machine casing, reduce the technology complexity when drain pump and washing machine assemble, drain pipe and drain pipe clamp when canceling current drain pump and washing machine assembly, reduction in production cost.

In order to solve the technical problem, the utility model adopts the following basic concept: a washing machine comprises a washing machine body,

the water outlet is arranged on the shell;

a drain pump installed in the housing for draining water;

the draining pump comprises a pump body, wherein a water inlet joint and a water outlet joint are communicated with each other and arranged on the pump body, and the water outlet joint is connected with the water outlet.

Further, the pump body is arranged opposite to the water discharge opening, and the water outlet joint extends from the opposite side of the pump body and the water discharge opening to the water discharge opening.

Further, the water inlet joint is arranged on the adjacent side wall of the pump body and the water outlet joint.

Further, the pump body comprises a first pump body,

the filter cavity is internally provided with a filter, and the water inlet joint is arranged on the filter cavity and is communicated with a washing barrel of the washing machine;

and the water outlet cavity is communicated with the filter cavity and is arranged opposite to the water inlet joint, and the water outlet joint is arranged on the water outlet cavity and is connected with the water outlet on the shell.

Furthermore, one end of the water outlet cavity is arranged on the side wall of the filter cavity, one side wall of the water outlet cavity is arranged opposite to the water outlet on the shell, and the water outlet joint is arranged on one side wall of the water outlet cavity opposite to the water outlet and is close to the upper part of one side wall of the water outlet cavity.

Furthermore, one end of the filter cavity is opposite to the side wall of the shell with the water outlet, the water inlet connector is arranged on the other side wall of the filter cavity, which is opposite to the water outlet cavity, and the water inlet connector is arranged close to the bottom of the other side wall of the filter cavity.

Further, the water outlet cavity comprises a water outlet pipe,

one end of the first water outlet cavity is communicated with the peripheral wall of the filter cavity;

and one end of the second water outlet cavity is communicated with the other end of the first water outlet cavity, and the water outlet joint is horizontally arranged on the peripheral wall of the second water outlet cavity.

Furthermore, the drainage pump further comprises a fixed seat, one end of the fixed seat is arranged on the peripheral wall of the first water outlet cavity, and the other end of the fixed seat is connected with the shell.

Furthermore, the water outlet is arranged on the side wall of the lower end of the shell, the pump body is further provided with a water inlet and a water outlet 1 which are communicated with each other, the water inlet connector is connected with the water inlet, the water outlet is connected with the water outlet connector, and the position of the water outlet on the pump body is higher than that of the water inlet.

Furthermore, the shell is also provided with a mounting hole which is arranged on the same side as the water outlet;

still include the installation department on the pump body, set up the filter chamber is close to the one end of outlet, the mounting hole with the installation department sets up relatively, the installation department can stretch into in the mounting hole.

After the technical scheme is adopted, compared with the prior art, the utility model following beneficial effect has.

(1) The utility model discloses a with the delivery port of water inlet intercommunication on the pump body of drain pump to set up water connectors in water outlet department, direct and washing machine's casing on the outlet intercommunication, the cancellation when making the drain pump install on washing machine, the drain pipe and the drain pipe clamp of connection realize the delivery port of drain pump and the direct intercommunication of washing machine's casing, have reduced assembly process's complexity, cancel installation drain pipe and drain pipe clamp, have saved manufacturing cost.

(2) The utility model discloses a position that is higher than the water inlet with the delivery port on the pump body sets up, makes the drain pump when carrying out the drainage, prevents that rivers from taking place to be stranded gas in the drain pump to the noise is made in the production, and improve equipment's practicality increases user experience.

(3) The utility model discloses a set up the detachable filter in the filter chamber, make the drain pump when using, filter the foreign matter in the washing water, prevent that the drain pump from blockking up, simultaneously, can dismantle the setting, the clean drain pump of the user of being convenient for.

(4) The utility model discloses a set up the fixing base, make the drain pump when the installation, stability when improving the drain pump installation prevents at the drain pump during operation, produces abnormal sound because of the unstability.

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention, are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. It is obvious that the drawings in the following description are only some embodiments and that for a person skilled in the art, other drawings can also be derived from them without inventive effort. In the drawings:

fig. 1 is a schematic structural view of a drain pump according to the present invention;

FIG. 2 is a diagram of a sump pump body;

figure 3 is a front view of figure 1 of the present invention;

fig. 4 isbase:Sub>A cross-sectional view taken atbase:Sub>A-base:Sub>A of fig. 3 in accordance with the present invention;

fig. 5 is a cross-sectional view taken at B-B of fig. 3 according to the present invention;

figure 6 is a side view of the present invention from figure 1;

figure 7 is another side view of the present invention from figure 1;

fig. 8 is a cross-sectional view at C-C of fig. 7 according to the present invention;

FIG. 9 is a view showing an installation structure of a drain pump and a washing machine casing according to the present invention;

figure 10 is a side view of the present invention from figure 9;

fig. 11 is an enlarged view of fig. 9E of the present invention.

In the figure: 1. a pump body; 11. a water inlet; 12. a water outlet; 13. a filter chamber; 14. a water outlet cavity; 141. a first water outlet cavity; 142. a second water outlet cavity; 15. a water inlet joint; 16. a water outlet joint; 17. an installation part; 2. a filter; 21. a rotating structure; 3. a motor; 4. an impeller; 5. a fixed seat; 6. a housing; 61. a water discharge port; 62. and (7) mounting holes.

It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate the inventive concept by those skilled in the art with reference to specific embodiments.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments, and the following embodiments are used for illustrating the present invention, but do not limit the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.

As shown in fig. 1 to 11, the washing machine of the present invention includes a housing 6 and a drain pump.

A water outlet 61 is arranged on the shell 6.

The drain pump is installed in the housing 6 for draining water.

The drainage pump comprises a pump body 1, wherein a water inlet connector 15 and a water outlet connector 16 which are communicated with each other are arranged on the pump body 1, and the water outlet connector 16 is connected with the drainage port 61.

The utility model discloses a set up water supply connector 15, the water outlet connector 16 of intercommunication on the pump body 1, realize the emission to washing machine washing water, and will water outlet connector 16 is connected with outlet 61 on washing machine's the casing 6, and the drain pipe when canceling water outlet connector 16 and washing machine's casing 6 intercommunication and the drain pipe clamp of fixed drain pipe reduce the drain pump and washing machine's casing 6 assembly process's complexity, have practiced thrift manufacturing cost.

Further, the pump body 1 is disposed opposite to the water discharge port 61, and the water discharge joint 16 extends from the opposite side of the pump body 1 to the water discharge port 61.

As shown in fig. 9 to 11, the pump body 1 is disposed opposite to the water discharge port 61, and the water outlet joint 16 extends from the opposite side of the pump body 1 and the water discharge port 61 to the water discharge port 61, so that the water outlet joint 16 is directly connected to the water discharge port 61 during installation, the structural complexity of the water outlet joint 16 is reduced, the water outlet joint 16 can extend out of the water discharge port 61, and a user can set a water discharge pipe communicated with the water outlet joint 16 according to needs to communicate with an external water discharge pipe, so that the washing water can be directly installed on the washing machine housing 6 by optimizing the installation process of the water discharge pump.

Further, the water inlet connector 15 is disposed on the adjacent side wall of the pump body 1 and the water outlet connector 16.

The utility model discloses a set up water supply connector 15 on the pump body 1, water outlet connector 16, when installing, respectively with washing machine's washtub, outlet 61 intercommunication on the casing 6, the realization is to the emission of washing water, the drain pipe and the drain pipe clamp that cancel and set up between water outlet connector 16 and outlet 61, the complexity of technology when having reduced the drain pump installation, and simultaneously, the production cost is reduced, the drain pipe is cancelled, reduce the drainage route, convenient dismantlement and maintenance with the drain pump, prevent that the drain pipe from blockking up, cause the drain pump to produce the peculiar smell, increase user's experience.

Further, the pump body 1 comprises a filter chamber 13 and a water outlet chamber 14.

The filter chamber 13 is internally provided with a filter 2, and the water inlet connector 15 is arranged on the filter chamber 13 and communicated with a washing barrel of the washing machine.

The water outlet cavity 14 is communicated with the filter cavity 13 and is arranged opposite to the water inlet joint 15, and the water outlet joint 16 is arranged on the water outlet cavity 14 and is connected with the water outlet 61 on the shell 6.

The utility model discloses a set up filter chamber 13 on the pump body 1 to just install filter 2 in the filter chamber 13 of the pump body 1, reduce drain pump occupation space area, water supply connector 15 sets up on the filter chamber 13, communicate with washing machine's washtub, make when discharging the washing water, the washing water passes through water supply connector 15 at first through filter chamber 13, filters the foreign matter in the washing water, avoids the foreign matter in the washing water to cause the drain pump to block up, prevents long-time use, and the drain pump produces the peculiar smell, improves the work efficiency of drain pump.

Furthermore, one end of the water outlet cavity 14 is disposed on the side wall of the filter cavity 13, one side wall of the water outlet cavity 14 is disposed opposite to the water outlet 61 on the housing 6, and the water outlet joint 16 is disposed on one side wall of the water outlet cavity 14 opposite to the water outlet 61 and is disposed near the upper portion of one side wall of the water outlet cavity 14.

The utility model discloses a tip setting that will go out water cavity 14 is on the lateral wall of filter chamber 13 to a lateral wall that will go out water cavity 14 sets up with outlet 61 on the casing 6 relatively, and water connectors 16 sets up the upper portion setting at a lateral wall that goes out water cavity 14 and outlet 61 are relative, and the position of avoiding water connectors 16 is less than water connectors 15's position, avoids the drain pump when carrying out the drainage, takes place the predicament phenomenon, produces the abnormal sound.

As shown in fig. 9 to 11, the outlet chamber 14 is disposed on the side wall of the filter chamber 13 at the end far from the water outlet 61 of the housing 6, and by connecting one end of the outlet chamber 14 to the filter chamber 13 and disposing the outlet connector 16 on the side wall of the outlet chamber 14 opposite to the water outlet 61, the outlet connector 16 is connected to the water outlet 61, so that the filtered washing water is connected to the water outlet 61 through the outlet connector 16 on the outlet chamber 14 and extends out of the water outlet 61 to be directly discharged to the outside of the washing machine, thereby improving the use effect and working efficiency of the drain pump and optimizing the assembly process of the drain pump and the washing machine housing 6.

Furthermore, one end of the filter cavity 13 and the side wall of the housing 6 having the water outlet 61 are disposed opposite to each other, the water inlet connector 15 is disposed on the other side wall of the filter cavity 13 opposite to the water outlet cavity 14, and the water inlet connector 15 is disposed near the bottom of the other side wall of the filter cavity 13.

Through set up water supply connector 15 at filter chamber 13 with on going out another lateral wall that water chamber 14 carried on the back mutually, be close to the lateral wall setting of the one end that casing 6 has outlet 61, be convenient for go out water connector 16 and washing machine washtub intercommunication, reduce assembly process's complexity to be close to water supply connector 15 the bottom setting of filter chamber 13's lateral wall reduces water supply connector 15 and sets up the height, avoids water supply connector 15's height to be higher than water supply connector 16, makes the drain pump when the drainage, the entraps phenomenon appears, produces the abnormal sound.

As shown in fig. 1 to 8, the water outlet chamber 14 includes a first water outlet chamber 141 and a second water outlet chamber 142.

One end of the first water outlet cavity 141 is communicated with the peripheral wall of the filter cavity 13.

One end of the second water outlet cavity 142 is communicated with the other end of the first water outlet cavity 141, and the water outlet joint 16 is horizontally arranged on the outer peripheral wall of the second water outlet cavity 142.

The utility model discloses a set up the first water outlet cavity 141 and prolong the play water route of washing water, make the washing water can be after filter chamber 13, when going out water, flow into first water outlet cavity 141 earlier, reduce the velocity of flow of washing water in the drain pump, improve the result of use, avoid producing the abnormal sound because of the velocity of flow is too fast.

An impeller 4 is disposed in the second water outlet cavity 142, and the drainage pump further includes a motor 3 connected to the impeller 4 for driving the impeller 4 to rotate. As shown in fig. 1 to 5, the impeller 4 is installed in the second water outlet cavity 142, so that the filtered water can more conveniently enter the first water outlet cavity 141, and then the second water outlet cavity 142 discharges the washing water, and the motor 3 is installed on the drainage pump, so that the motor 3 drives the impeller 4 to rotate during drainage, the impeller 4 forms a centrifugal force in the second water outlet cavity 142, so as to discharge the washing water from the water outlet connector 16, in this process, the washing water firstly passes through the filter cavity 13, and the filter 2 in the filter cavity 13 filters the foreign matters in the washing water, thereby preventing the drainage pump from being blocked by the foreign matters, and providing the use effect and the work efficiency.

Specifically, as shown in fig. 6 to 11, when the drainage pump is installed in the casing 6 of the washing machine, the water outlet connector 16 at the water outlet 12 is directly communicated with the water outlet 61 on the casing 6, so as to reduce the number of drain pipe clamps for connecting the water outlet connector 16 with the water outlet 61 on the casing 6 of the washing machine and for fixing the drain pipe, thereby reducing the complexity of the assembly process and the production cost, when the washing water enters the drainage pump, the washing water is firstly filtered through the filter chamber 13, thereby avoiding the blockage of the drainage pump caused by foreign matters in the washing water, and then the impeller 4 generates centrifugal force under the driving of the motor 3 through the first water outlet chamber 141 and the second water outlet chamber 142, so as to discharge the washing water directly through the water outlet connector 16 and out of the casing 6 of the washing machine.

Further, the outer diameter of the first water outlet cavity 141 is smaller than the outer diameter of the second water outlet cavity 142.

The drainage pump further comprises a fixed seat 5, one end of the fixed seat is arranged on the peripheral wall of the first water outlet cavity 141, and the other end of the fixed seat is connected with the shell 6.

Preferably, the fixing base 5 is arranged symmetrically with respect to the central axis of the first water outlet cavity 141.

The utility model discloses and through set up fixing base 5 on first play water cavity 141's periphery wall, be close to first play water cavity 141's bottom setting, first play water cavity 141's external diameter is less than the external diameter that the second goes out water cavity 142, make things convenient for on the first play water cavity 141's of fixing base 5 installation the periphery wall, and make fixing base 5 set up for first play water cavity 141's center axis symmetry, make the drain pump when installing, through fixing base 5, improve the stability that the drain pump was installed on washing machine shell 6, avoid when using, because of fixed unstable, the drain pump produces great noise, influence user's experience.

Further, the drain port 61 is provided on a side wall of the lower end of the housing 6.

Still be equipped with water inlet 11 and delivery port 12 of intercommunication each other on the pump body 6, water supply connector 15 with water inlet 11 is connected, delivery port 12 with water outlet connector 16 is connected, delivery port 12 is in position on the pump body 1 is higher than the position of water inlet 11.

The position of the water outlet 12 is higher than that of the water inlet 11, so that the problem that air trapping occurs in water flow passing through the pump body 1 to generate noise when water is drained is avoided, the usability of the washing machine is improved, and the user experience is improved.

Further, the housing 6 is further provided with a mounting hole 62, and the mounting hole is arranged on the same side as the water outlet 61.

Still include installation department 17 on the pump body 1, set up filter chamber 13 is close to the one end of outlet 61, mounting hole 62 with installation department 17 sets up relatively, installation department 17 sets up in the mounting hole 62.

The mounting hole 62 is arranged opposite to the mounting portion 17, so that the mounting portion 17 of the drainage pump can be conveniently matched with the mounting hole 62, and the filter 2 can be detachably mounted in the filter cavity 13 through the mounting portion 17, so that the filter 2 can be conveniently mounted and dismounted when a user cleans the filter cavity 13.

As shown in fig. 8-9, the outer diameter of the mounting portion 17 is smaller than the inner diameter of the mounting hole 62, and the mounting portion 17 may be at least partially disposed in the mounting hole 62.

Specifically, the mounting portion 17 is provided on a peripheral wall of the filter chamber 13 at an end thereof close to the drain port 61 of the housing 6.

The utility model discloses a be less than the internal diameter of mounting hole 62 with the external diameter of installation department 17 to can set up installation department 17 part at least in the mounting hole 62, improve the stability of drain pump installation, avoid long-term the use back, installation department 17 takes place to remove with mounting hole 62 position, causes filter 2 to dismantle the difficulty, improves the result of use and the drainage efficiency of drain pump, increases user's use and experiences.

As shown in fig. 1 to 8, the outer peripheral wall of the mounting portion 17 is provided with an ear seat which can be abutted against the inner wall of the washing machine housing 6 during mounting, and the ear seat is provided with a threaded hole which can fix the filter chamber 13 in the washing machine housing 6 through a screw, thereby preventing the filter chamber 13 from moving and the filter 2 from being difficult to dismount due to vibration when the drainage pump is operated.

The installation part 17 of the filter 2 of the filter cavity 13 is provided with an internal thread which is in threaded connection with the external thread on the filter 2, so that the filter cavity 13 is conveniently sealed.

Still be equipped with revolution mechanic 21 on the filter 2, make things convenient for the installation and the dismantlement of filter 2, when clearing up the drain pump, only need through revolution mechanic 21, can filter 2 follow the drain pump and dismantle, be convenient for clear up out the filterable foreign matter of filter 2 from filter chamber 13.

The utility model provides a pair of washing machine, the water inlet 11 of drain pump, through water supply connector 15 and washing machine's washtub intercommunication, the delivery port 12 of drain pump is connected through outlet port 61 on water supply connector 16 and the washing machine casing 6. When the installation drain pump, cancel the drain pipe clamp through drain pipe and being used for fixed drain pipe among the prior art, the technology complexity at the assembly drain pump has been reduced, and the production cost is saved, and simultaneously, set up water inlet 11 near the bottom of filter chamber 13, set up water outlet 12 near the upper portion of second play water cavity 142, realize that the position of water outlet 12 on the pump body 1 is higher than the position of water inlet 11, avoid when carrying out the drainage, rivers take place the stranded gas through the pump body 1 in, the noise produces, improve washing machine's usability, and set up filter 2 detachable in filter chamber 13, convenience of customers washs and maintains the drain pump.

The above embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention in any way, and although the present invention has been disclosed with reference to the above embodiments, but not to limit the present invention, any person skilled in the art can make modifications or changes to equivalent embodiments by utilizing the above technical contents without departing from the technical scope of the present invention, and the embodiments in the above embodiments can be further combined or replaced, but any simple modification, equivalent change and modification made to the above embodiments by the technical essence of the present invention still fall within the scope of the present invention.

Claims (10)

1. A washing machine characterized in that: comprises a shell, wherein a water outlet is arranged on the shell;

a drain pump installed in the housing for draining water;

the drainage pump comprises a pump body, wherein a water inlet joint and a water outlet joint which are communicated are arranged on the pump body, and the water outlet joint is connected with the drainage outlet.

2. A washing machine as claimed in claim 1, characterized in that: the pump body is arranged opposite to the water outlet, and the water outlet joint extends to the water outlet from the opposite side of the pump body and the water outlet.

3. A washing machine according to claim 2, characterized in that: the water inlet joint is arranged on the adjacent side walls of the pump body and the water outlet joint.

4. A washing machine as claimed in claim 1, characterized in that: the pump body comprises a pump body and a pump body,

the filter cavity is internally provided with a filter, and the water inlet joint is arranged on the filter cavity and communicated with a washing barrel of the washing machine;

and the water outlet cavity is communicated with the filtering cavity, and the water outlet joint is arranged on the water outlet cavity and is connected with the water outlet on the shell.

5. A washing machine as claimed in claim 4, characterized in that: one end part of the water outlet cavity is arranged on the side wall of the filter cavity, one side wall of the water outlet cavity is arranged opposite to the water outlet on the shell, and the water outlet joint is arranged on one side wall of the water outlet cavity opposite to the water outlet and is close to the upper part of one side wall of the water outlet cavity.

6. A washing machine as claimed in claim 4, characterized in that: one end part of the filter cavity is opposite to the side wall of the shell with the water outlet, the water inlet joint is arranged on the other side wall of the filter cavity opposite to the water outlet cavity, and the water inlet joint is arranged close to the bottom of the other side wall of the filter cavity.

7. A washing machine as claimed in claim 4, characterized in that: the water outlet cavity comprises a water outlet pipe,

one end of the first water outlet cavity is communicated with the peripheral wall of the filter cavity;

and one end of the second water outlet cavity is communicated with the other end of the first water outlet cavity, and the water outlet joint is horizontally arranged on the peripheral wall of the second water outlet cavity.

8. A washing machine as claimed in claim 7, characterized in that: the outer diameter of the first water outlet cavity is smaller than that of the second water outlet cavity;

the drainage pump further comprises a fixed seat, one end of the fixed seat is arranged on the peripheral wall of the first water outlet cavity, and the other end of the fixed seat is connected with the shell.

9. A washing machine according to claim 1, characterized in that: the water outlet is arranged on the side wall of the lower end of the shell;

the pump body is also provided with a water inlet which is connected with the water inlet joint;

and the water outlet is connected with the water outlet joint, and the position of the water outlet on the pump body is higher than that of the water inlet.

10. A washing machine according to any one of claims 4-8, characterized in that: the shell is also provided with a mounting hole which is arranged at the same side of the water outlet;

still include the installation department on the pump body, set up the filter chamber is close to the one end of outlet, the mounting hole with the installation department sets up relatively, the installation department sets up in the mounting hole.

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