CN209686113U - A kind of drainage pump cover and draining pump - Google Patents
A kind of drainage pump cover and draining pump Download PDFInfo
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- CN209686113U CN209686113U CN201920171312.7U CN201920171312U CN209686113U CN 209686113 U CN209686113 U CN 209686113U CN 201920171312 U CN201920171312 U CN 201920171312U CN 209686113 U CN209686113 U CN 209686113U
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- pump cover
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Abstract
The utility model provides a kind of drainage pump cover, it is characterized by comprising pump cover shell and outlet pipes, the pump cover shell has a pump cover chamber, the outlet pipe is connected to the pump cover chamber, including the connecting tube for being connect with externally drained pipe, for the inner wall section of connecting tube in non-circular, the inner wall section height of connecting tube is less than the inner wall section width of connecting tube, and the outer wall section of connecting tube is rounded.The utility model also provides a kind of draining pump including the drainage pump cover.The drainage pump cover and draining pump of the utility model, it due to the specific structure of pump cover outlet pipe, adjust pump cover chamber height can, it can be smaller than the pump cover chamber height of the prior art, and the connection of itself and outer circular drainpipe is not influenced, it is greatly improved the efficiency and lift of draining pump.
Description
Technical field
The utility model belongs to water pump technology more particularly to a kind of drainage pump cover and draining pump.
Background technique
The draining pump majority used on existing washing machine is that a pump cover can be assembled on motor, passes through pump cover and washing machine
Drainage pipeline be attached.When water flows in pump cover from pipe washer, and draining pump is powered on, the impeller of rotation is driven
Water rotation, water is discharged pump cover chamber under the influence of centrifugal force, to carry out drainage works.
However pump cover outlet pipe on the market, design are round tube (such as Fig. 1~4 with circular outlets of rule
It is shown).On the one hand it allows for outlet pipe and need to have the ability that some large volume foreign matters are discharged, for example, coin, handstone, small
Drawing pin, small necklace etc., especially coin are a discs, and the water outlet of outlet pipe is made into circular port naturally；Another party
Face, the drainpipe of washing machine are also round tube, this is allowed for cooperate with drainpipe, and the outer wall of pump cover outlet pipe is necessary for round
Shape.But if the nozzle diameter of drainpipe is bigger, the diameter of the water outlet of drainage pump cover also must be corresponding
Increase, this height for allowing for pump cover chamber can increase accordingly.However, excessively high pump cover chamber size can weaken the intracavitary formation of pump cover
Negative pressure causes to influence draining pump discharge and low voltage starting performance, to influence the efficiency of draining pump.In addition, present water pump turns
Sub- actuating mechanism is arranged in rotor assembly tail portion, compared with original rotor startup mechanism is set on impeller, impeller diameter more
Can accomplish it is smaller, so that the diameter of pump cover chamber is without too big, compared with small impeller can meet demand on the basis of, if pump
The excessive height of lid chamber can further influence the efficiency of draining pump.
Utility model content
Based on this, the purpose of the utility model is to provide a kind of drainage pump cover, the specific structure of outlet pipe is arranged
Adjust pump cover chamber height can, can be smaller than the pump cover chamber height of the prior art, and do not influence itself and outer circular
The connection of drainpipe is also greatly improved the efficiency and lift of draining pump.
The technical solution that the utility model is taken is as follows:
A kind of drainage pump cover, it is characterised in that: including pump cover shell and outlet pipe, the pump cover shell has a pump cover
Chamber, the outlet pipe are connected to the pump cover chamber, and including the connecting tube for connecting with externally drained pipe, the inner wall of connecting tube is cut
Face is in non-circular, and the inner wall section height of connecting tube is less than the inner wall section width of connecting tube, and the outer wall section of connecting tube is in circle
The inner wall section height of shape, the connecting tube refers to that, when the drainage pump cover is horizontal positioned, the inner wall section of connecting tube exists
The highest point of vertical direction is to the vertical range of minimum point, and the inner wall section width of the connecting tube refers to, when the draining pump
When pump cover is horizontally arranged, the horizontal distance of the connecting tube inner wall section leftmost side in the horizontal direction to the rightmost side.
The drainage pump cover of the utility model is inserted into the outlet pipe of pump cover since the outer wall section of connecting tube is rounded
When to externally drained pipe with circular inner wall section, can smoothly connect, the inner wall section of the connecting tube in non-circular,
This is non-circular to can be oval, rectangular etc. different from any one circular shape；As for connecting tube inner wall section height with
The specific determination of inner wall section width, it then follows rule be: when the drainage pump cover is horizontal positioned, the inner wall of connecting tube is cut
Vertical range of the face in the highest point of vertical direction to minimum point is depth of section, and connecting tube inner wall section is in the horizontal direction most
The horizontal distance of left side to the rightmost side is cross-sectional width.
As an implementation, the inner wall section of the connecting tube is oval.
As an implementation, the outlet pipe further includes coupling tube, and described coupling tube one end is connected to the pump cover chamber,
The other end is connected to the connecting tube.
Further, the inner wall section size shape of the inner wall section of coupling tube and connecting tube is all the same, connecting tube it is interior
Wall is formed from the inner wall of coupling tube to the direction linear extension far from pump cover shell.
As an implementation, the coupling tube and the connecting tube are integrally formed.Further, it can also entirely arrange
Water pump cover is integrally formed.
The drainage pump cover as a preferred implementation manner, it is characterised in that: further include the second reinforcing rib, institute
The second reinforcing rib is stated to be located on the lateral surface of pump cover shell.The setting of second reinforcing rib can make drainage pump cover in integrated note
When being moulded into type, pump cover housing distortion is prevented.
Further, the outer wall cross sectional shape of coupling tube is identical as its inner wall section shape.
Preferably, the connecting tube includes the inward-facing groove opened up of multiple outer walls from connecting tube, and each groove is surround
The tube body of connecting tube is arranged.If the glue between the inner wall and outer wall of connecting tube is thicker than big, on the one hand, connecting tube is also easy to produce bad
Product, and be used for a long time also shrink and generate tube body deformation and change its outer wall dimension；On the other hand, using formed in mould cooling
Time also needs longer, influences production efficiency.The setting of groove can reduce the thickness of the glue between the inner wall of connecting tube and outer wall, to keep away
Exempt to cause to generate gap between connecting tube and externally drained pipe because connecting tube deforms, while production efficiency can be improved.
As an implementation, the connecting tube includes the inner cylinder and outer barrel being arranged from the inside to the outside, further includes connecting
Junctor and multiple first reinforcing ribs, the inner cylinder are non-round tube bodies, and the outer barrel is round tube body, and the connector is filled out
It fills between the inner cylinder and outer barrel, one end of each first reinforcing rib connects inner cylinder, and the other end connects outer barrel.In
In this embodiment, since the setting of the first reinforcing rib can be played the role of increasing connection pipe outer wall intensity.
The utility model also provides a kind of draining pump, it is characterised in that: including drainage pump cover described above.
Preferably, the draining pump further includes the impeller in the pump cover chamber, by the blade of impeller in vertical side
To highest point and pump cover chamber top between vertical range be denoted as M, meet 3mm≤M≤13mm.
Further, the horizontal distance between the blade outermost end of impeller and pump cover housing side inner wall is denoted as N, met
5mm≤N≤10mm。
The beneficial effects of the utility model are:
The drainage pump cover of the utility model adjust the height of pump cover chamber can due to the specific structure of outlet pipe,
When the pump cover water outlet inside pipe wall that pump cover is discharged inside pipe wall and the prior art is same wide, the pump cover chamber height of the utility model can be than original
There is height smaller, makes impeller in more compact, the negative pressure that pump cover will not be kept intracavitary because pump cover chamber size is excessive of the intracavitary placement of pump cover
Weaken the reduction for eventually leading to the draining efficiency of pump.It is found through experiment that using the pump cover of the application, under same flow, draining
Draining pump of the efficiency, lift of pump than original pump cover outlet pipe with circular outlets section is higher.
Detailed description of the invention
Fig. 1 is the drainage pump cover schematic perspective view of the prior art；
Fig. 2 is the front schematic view of the drainage pump cover of the prior art；
Fig. 3 is the schematic top plan view of the drainage pump cover of the prior art；
Fig. 4 is the sectional view along A-A of Fig. 3；
Fig. 5 is the drainage pump cover schematic perspective view of embodiment 1；
Fig. 6 is the front schematic view of the drainage pump cover of embodiment 1；
Fig. 7 is the schematic top plan view of the drainage pump cover of embodiment 1；
Fig. 8 is the B-B direction cross-sectional view of Fig. 7；
Fig. 9 is the draining pump the schematic diagram of the section structure of embodiment 2；
Wherein: 1- pump cover shell, 11- pump cover chamber, the second reinforcing rib of 12-, 2- outlet pipe, 21- connecting tube, 211- inner cylinder
Body, 212- outer barrel, 2121- groove, 213- connector, the first reinforcing rib of 214-, 22- coupling tube, 3- rotor startup mechanism.
Specific embodiment
Embodiment 1
As shown in figures 5-8, the drainage pump cover of the present embodiment, including pump cover shell 1 and outlet pipe 2, pump cover shell 1 have
There is a pump cover chamber 11, outlet pipe 2 is connected to pump cover chamber 11, including the connecting tube 21 for connecting with externally drained pipe, connecting tube
21 inner wall section is in non-circular, inner wall section width of the inner wall section height less than connecting tube 21 of connecting tube 21, connecting tube
21 outer wall section is rounded, as shown in figure 8, the inner wall section height of connecting tube 21 is denoted as h, the inner wall section of connecting tube 21
Width is denoted as d, and h refers to, when drainage pump cover is horizontally arranged, the inner wall section of connecting tube 21 the highest point of vertical direction extremely
The vertical range of minimum point, d refer to, when drainage pump cover is horizontally arranged, the inner wall section of outlet pipe 21 is in the horizontal direction
The horizontal distance of the leftmost side to the rightmost side.Asymmetric figure when being horizontally arranged for outlet pipe can be determined by above-mentioned rule
The height and width of its connecting tube inner wall section；Above and below when being horizontally arranged for outlet pipe and the figure of left-right symmetric, such as
Oval or rectangle, height and width be easier to determine, similarly meets above-mentioned rule certainly.
As an implementation, the inner wall section of connecting tube 21 is oval (as shown in Fig. 5~6,8).In other realities
It applies in mode, the inner wall section of the connecting tube can of course be rectangle or arbitrarily be different from circular other shapes, as long as its
Height is less than width.
As an implementation, outlet pipe 2 may also include coupling tube 22, and 22 one end of coupling tube is connected to pump cover chamber 11, separately
One end is connected to connecting tube 21.In this embodiment, outlet pipe 2 includes interconnected coupling tube 22 and connecting tube 21, no
Will entire outlet pipe be all made into the shape of connecting tube and saved while guaranteeing that outlet pipe is connect with the adaptation of externally drained pipe
Material and can about be needed according to the internal diameter of externally drained pipe the outer diameter size of connecting tube is arranged, have no effect on pump cover chamber maintain compared with
Small height.Certainly, in other embodiments, outlet pipe 2 can also only include connecting tube 21.
As an implementation, the inner wall section of coupling tube 22 and the inner wall section size shape of connecting tube 21 are homogeneous
Together, the inner wall of connecting tube 21 is formed from the inner wall of coupling tube 22 to the direction linear extension far from pump cover shell.In this implementation
In mode, i.e. the tube cavity of the tube cavity of coupling tube 22 and connecting tube 21 is located on same cylinder.Certainly, in other embodiments
In, coupling tube 22 can be different from the inner wall section size shape of connecting tube 21.
As an implementation, coupling tube 22 and connecting tube 21 can be integrated molding.It can also entire draining pump pump
Lid is integrally formed.
Drainage pump cover as a preferred implementation manner, may also include the second reinforcing rib 12, and the second reinforcing rib 12 is located at
On the lateral surface of pump cover shell 1.Drainage pump cover usually can by integrated injection molding, due to the setting of the second reinforcing rib 12,
It can play the role of preventing pump cover shell 11 from deforming.
As an implementation, the outer wall cross sectional shape of coupling tube 22 is identical as its inner wall section shape.That is coupling tube
22 be non-round.
To may include that multiple outer walls from connecting tube 21 are inward-facing open up connecting tube 21 as a preferred implementation manner,
Groove 2121, each groove 2121 are arranged around the tube body of connecting tube 21.If glue between the inner wall and outer wall of connecting tube thicker than
Greatly, on the one hand, connecting tube is also easy to produce defective products, and is used for a long time also shrink and generates tube body deformation and change its outer wall dimension；
On the other hand, longer using also needing formed in mould cooling time, influence production efficiency.The setting of groove 2121 can reduce connection
Glue between the inner wall and outer wall of pipe is thick, to avoid causing to generate between connecting tube and externally drained pipe because connecting tube deforms
Gap, while production efficiency can be improved.
Connecting tube 21 may include the inner cylinder 211 and outer barrel being arranged from the inside to the outside as a preferred implementation manner,
212, it may also include connector 213 and multiple first reinforcing ribs 214, inner cylinder 211 is non-round tube body, and outer barrel 212 is round
Shape tube body, connector 213 are filled between inner cylinder 211 and outer barrel 212, in one end connection of each first reinforcing rib 214
Cylinder 211, the other end connect outer barrel 213.In this embodiment, the setting of the first reinforcing rib 214 can play increase
Connect the effect of pipe outer wall intensity.As an implementation, as shown in fig. 6, connector 213 is filled in close to pump cover shell 1
Between the outer barrel 212 and inner cylinder 212 of side, multiple first reinforcing ribs 214 are set to the outer cylinder far from 1 side of pump cover shell
Between body 212 and inner cylinder 211, groove 2121 is set in the outside wall surface of outer barrel 212.The outer wall center of connecting tube 21 with it is interior
Wall center can be overlapped, and can not also be overlapped.
Embodiment 2
As shown in figure 9, the draining pump of the present embodiment, the drainage pump cover including the utility model.Generally, draining pump is also
Including the impeller being located in the pump cover chamber.As shown in figure 4, the water outlet tube inner diameter of the prior art is Φ 23mm, vertical
Due to the limitation of water outlet size on direction, the height h1 of pump cover chamber is 26mm, and diameter d1 is Φ 59.33mm.
By taking a specific embodiment of the present embodiment as an example: as shown in figure 9, the rotor startup mechanism 3 of draining pump is set to
Rotor assembly tail portion, as shown in figure 8,21 inner wall of connecting tube of the outlet pipe of the present embodiment is designed as ellipse, width d keep with
The circular diameter of the prior art is consistent, i.e. 23mm, but the height h of 21 inner wall of connecting tube is reduced to 15.3mm.Theoretically, guaranteeing Fig. 9
(3mm≤M≤13mm is usually taken) in the case where middle M > 0, according to the size of different impeller height and foreign matter, the height of pump cover chamber
Degree can accordingly adjust.Thus, for example the height h2 of pump cover chamber can accordingly be decreased to about 17mm, meanwhile, pump cover chamber it is straight
Diameter d2 can also be decreased to 50mm, theoretically (5mm≤N≤10mm usually be taken) in the case where N > 0, according to different impeller diameters
With the size of foreign matter, pump cover chamber diameter can also be adjusted accordingly.The above is only a preferred embodiment of the present embodiment,
In other embodiments, the pump cover of draining pump can also only meet the basic demand of the utility model.
Under same flow, the efficiency of the draining pump of draining pump and the prior art to the present embodiment, lift oppose and have a competition
It tests, it is found that the efficiency of the draining pump of the present embodiment and lift are all apparently higher than the draining pump of the prior art.
In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of describing the present invention and simplifying the description, rather than indicate
Or imply that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot understand
For limitations of the present invention.In the description of the present invention, unless otherwise indicated, the meaning of " plurality " is two or two
More than a.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But it cannot be understood as the limitations to utility model patent range.It should be pointed out that for the common skill of this field
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The protection scope of the utility model.
Claims (12)
1. a kind of drainage pump cover, it is characterised in that: including pump cover shell and outlet pipe, the pump cover shell has a pump cover
Chamber, the outlet pipe are connected to the pump cover chamber, and including the connecting tube for connecting with externally drained pipe, the inner wall of connecting tube is cut
Face is in non-circular, and the inner wall section height of connecting tube is less than the inner wall section width of connecting tube, and the outer wall section of connecting tube is in circle
The inner wall section height of shape, the connecting tube refers to that, when the drainage pump cover is horizontal positioned, the inner wall section of connecting tube exists
The highest point of vertical direction is to the vertical range of minimum point, and the inner wall section width of the connecting tube refers to, when the draining pump
When pump cover is horizontally arranged, the horizontal distance of the connecting tube inner wall section leftmost side in the horizontal direction to the rightmost side.
2. drainage pump cover according to claim 1, it is characterised in that: the inner wall section of the connecting tube is oval.
3. drainage pump cover according to claim 1, it is characterised in that: the outlet pipe further includes coupling tube, the mistake
It crosses pipe one end and is connected to the pump cover chamber, the other end is connected to the connecting tube.
4. drainage pump cover according to claim 3, it is characterised in that: the inner wall section of coupling tube and the inner wall of connecting tube
Cross-sectional sizes shape is all the same, and the inner wall of connecting tube is from the inner wall of coupling tube to the direction linear extension shape far from pump cover shell
At.
5. drainage pump cover according to claim 4, it is characterised in that: the coupling tube and connecting tube one at
Type.
6. drainage pump cover according to claim 5, it is characterised in that: further include the second reinforcing rib, described second reinforces
Muscle is located on the lateral surface of pump cover shell.
7. drainage pump cover according to claim 4, it is characterised in that: the outer wall cross sectional shape and its inner wall of coupling tube are cut
Face shape is identical.
8. drainage pump cover according to claim 1, it is characterised in that: the connecting tube includes multiple from the outer of connecting tube
The groove that wall surface inwardly opens up, each groove are arranged around the tube body of connecting tube.
9. drainage pump cover according to claim 1, it is characterised in that: the connecting tube include be arranged from the inside to the outside it is interior
Cylinder and outer barrel further include connector and multiple first reinforcing ribs, and the inner cylinder is non-round tube body, and the outer barrel is
Round tube body, the connector are filled between the inner cylinder and outer barrel, and one end of each first reinforcing rib connects inner cylinder
Body, the other end connect outer barrel.
10. a kind of draining pump, it is characterised in that: including any drainage pump cover of claim 1~9.
11. draining pump according to claim 10, it is characterised in that: it further include the impeller in the pump cover chamber, it will
Vertical range of the blade of impeller between the highest point and pump cover chamber top of vertical direction is denoted as M, meets 3mm≤M≤13mm.
12. draining pump according to claim 11, it is characterised in that: by the blade outermost end of impeller and pump cover housing side
Horizontal distance between inner wall is denoted as N, meets 5mm≤N≤10mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920171312.7U CN209686113U (en) | 2019-01-30 | 2019-01-30 | A kind of drainage pump cover and draining pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920171312.7U CN209686113U (en) | 2019-01-30 | 2019-01-30 | A kind of drainage pump cover and draining pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209686113U true CN209686113U (en) | 2019-11-26 |
Family
ID=68601196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920171312.7U Active CN209686113U (en) | 2019-01-30 | 2019-01-30 | A kind of drainage pump cover and draining pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209686113U (en) |
-
2019
- 2019-01-30 CN CN201920171312.7U patent/CN209686113U/en active Active
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