Drainage impeller capable of enabling bubbles in lower center to escape

Abstract

A drainage impeller capable of enabling bubbles in the center of the lower portion to escape comprises a disc-shaped wheel disc provided with an upper disc face and a lower disc face, and the wheel disc is provided with a plurality of lower blades protruding out of the lower disc face; the mandrel is arranged at the circle center of the wheel disc and extends upwards by a preset length from the wheel disc, the top end of the mandrel is higher than the upper disc surface, and the mandrel is provided with a connecting groove which is used for being connected with a driving shaft to be driven by the driving shaft to rotate; a plurality of through holes are formed in the wheel disc in a penetrating mode, the distance from the edge of the mandrel to the edge of the wheel disc is defined as a distribution distance, the through holes are distributed in the position within one third of the distribution distance and close to the mandrel, and the through holes are distributed in an equiangular mode relative to the mandrel.

Description

Technical Field

[0001] The present invention relates to a drainage device, and particularly to a drainage impeller that allows bubbles at the center of the lower part to escape. Background Art

[0002] When the drainage device for air conditioners is in operation, there will be noise. Some of the noise comes from the sound generated by the blades on the drainage impeller hitting the bubbles entrained in the water, causing them to burst, or the vibration caused by the change in resistance after hitting the bubbles. Therefore, if the accumulation of bubbles can be reduced so that the bubbles cannot accumulate and are discharged when there are very few or very small amounts, the impact of the bubbles on the blades can be effectively reduced, and thus the noise can be effectively reduced.

[0003] Taiwan, China Patent No. M482716 discloses a drainage device for air conditioning equipment. The drainage cavity of this case is relatively flat, and its drainage impeller is also relatively flat without a water-deflecting shaft protruding downward at the lower part. This relatively flat structure is suitable for an environment with a relatively small depth of the water storage tank. When this drainage impeller rotates, it will drive the water to form a vortex. Therefore, the bubbles below the drainage impeller will be concentrated at the center of the lower part of the drainage impeller by the vortex and cannot escape. As the bubbles accumulate and grow, eventually, noise will be caused by the collision of the large bubbles with the blades.

[0004] Therefore, how to discharge the bubbles at the center of the lower part of this drainage impeller outward has become an issue to be solved. Summary of the Invention

[0005] The main object of the present invention is to provide a drainage impeller that allows bubbles at the center of the lower part to escape. It can be applied to the relatively flat drainage cavity of the aforementioned prior art, and allows the bubbles at the center of the lower part to pass through the drainage impeller and escape upward without accumulating at the center of the lower part.

[0006] To achieve the above object, the present invention provides a drainage impeller that allows bubbles at the center of the lower part to escape, including: a disk, in a disk shape, having an upper disk surface and a lower disk surface, and the disk has a plurality of lower blades protruding from the lower disk surface; and a core shaft, disposed at the center of the disk and extending upward from the disk by a predetermined length, the top of the core shaft being higher than the upper disk surface, and the core shaft having a connection groove for connecting to a drive shaft and being driven to rotate by it; wherein, the disk is provided with a plurality of through holes, and the distance from the edge of the core shaft to the edge of the disk is defined as a distribution distance, the through holes are distributed within one-third of the distribution distance and close to the core shaft, and the through holes are equally angularly distributed with respect to the core shaft.

[0007] The present invention can be applied to the relatively flat drainage cavity of the aforementioned prior art, and allows the bubbles at the center of the lower part to pass through the drainage impeller and escape upward without accumulating at the center of the lower part. Description of the Drawings

[0008] Figure 1 It is a perspective view of the first preferred embodiment of the present invention.

[0009] Figure 2 It is a schematic cross-sectional view of the first preferred embodiment of the present invention.

[0010] Figure 3 It is a top view of the first preferred embodiment of the present invention.

[0011] Figure 4 It is a bottom view of the first preferred embodiment of the present invention.

[0012] Figure 5 It is an assembly schematic view of the first preferred embodiment of the present invention.

[0013] Figure 6 It is an assembly cross-sectional schematic view of the first preferred embodiment of the present invention.

[0014] Figure 7 It is a bottom view of another implementation aspect of the first preferred embodiment of the present invention.

[0015] Figure 8 It is a bottom view of yet another implementation aspect of the first preferred embodiment of the present invention.

[0016] Figure 9 It is a bottom view of still another implementation aspect of the first preferred embodiment of the present invention.

[0017] Figure 10 It is a bottom view of the second preferred embodiment of the present invention.

[0018] Figure 11 It is a schematic cross-sectional view of the second preferred embodiment of the present invention.

[0019] Among them, the reference numerals are:

[0020] 10: Drainage impeller for allowing air bubbles in the lower center to escape

[0021] 11: Wheel disc 12: Upper disk surface

[0022] 121: Upper blade 14: Lower disk surface

[0023] 141: Lower blade 16: Perforation

[0024] 21: Mandrel 22: Connecting groove

[0025] 91: Drainage device 94: Drainage cavity

[0026] 941: Water inlet 942: Outlet pipe

[0027] 96: Motor 961: Drive shaft

[0028] D: Distribution distance

[0029] 10’: Drainage impeller that allows the bubbles in the center below to escape

[0030] 11’: Disk 16’: Perforation

[0031] 31’: Nose Detailed implementation mode

[0032] In order to illustrate the technical features of the present invention in detail, the following preferred embodiments are given and described in conjunction with the accompanying drawings as follows, where:

[0033] As Figures 1 to 4 shown, the present invention illustrates a drainage impeller 10 (hereinafter referred to as the drainage impeller 10) that allows the bubbles in the center below to escape through a first preferred embodiment, which mainly consists of a disk 11 and a mandrel 21, where:

[0034] The disk 11 is in the shape of a disk and has an upper disk surface 12 and a lower disk surface 14. The disk 11 has a plurality of lower blades 141 protruding from the lower disk surface 14.

[0035] The mandrel 21 is arranged at the center of the disk 11 and extends upward from the disk 11 by a predetermined length. The top of the mandrel 21 is higher than the upper disk surface 12. The mandrel 21 has a connecting groove 22 for connecting a drive shaft 961 and being driven to rotate by it.

[0036] Among them, the disk 11 is provided with a plurality of perforations 16, and the distance from the edge of the mandrel 21 to the edge of the disk 11 is defined as a distribution distance D. The perforations 16 are distributed within one-third of the distribution distance D and close to the mandrel 21. In this first embodiment, it is taken as an example of about one-fourth of the position and close to the mandrel 21, and the perforations 16 are equally angularly distributed relative to the mandrel 21.

[0037] In this first embodiment, each of the perforations 16 is narrower in the part close to the mandrel 21 and wider in the part far from the mandrel 21. In addition, part of each of the perforations 16 is located between two adjacent lower blades 141.

[0038] In practice, multiple upper blades 121 can be optionally arranged on the upper disk surface 12 of the disk 11 according to requirements. In this first embodiment, the upper blades 121 are selected to be arranged, and the upper blades 121 and the lower blades 141 are arranged vertically aligned. Therefore, the upper blades 121 extend radially on the disk 11 and are in the shape of a rectangle, and have a mirror image relationship with the lower blades 141 relative to the disk 11, but the lengths are not necessarily the same.

[0039] The structure of the first embodiment has been described above. Next, the operating state of the first embodiment will be described.

[0040] As Figures 5 to 6 shown, before use, the drainage impeller 10 of this first embodiment is first assembled in the drainage cavity 94 of a drainage device 91. The lower part of the drainage cavity 94 has a water inlet 941, and on the side there is a water outlet pipe 942 for discharging the water in the drainage cavity 94 to the outside. A motor 96 is arranged above the drainage cavity 94, and it has a drive shaft 961 connected to the spindle 21.

[0041] As Figures 1 to 6 shown, during use, the motor 96 drives the drainage impeller 10 to rotate. The water and bubbles located below the disk 11 will form a vortex due to the rotation of the lower blades 141, and then the bubbles will be concentrated towards the center. Since the perforations 16 are close to the spindle 21, that is, close to the center, the bubbles concentrated at the center below the disk 11 will move to below the perforations 16 along with the rotation of the vortex, and then escape upward through the perforations 16 to above the disk 11, and then be discharged outwards along with the water flow. And because the bubbles continuously escape upward through the perforations 16, there is no problem of small bubbles gathering into large bubbles, and thus there is no problem of large bubbles colliding with the blades to generate noise.

[0042] The shape of each of the perforations 16 is not limited to that shown in the drawings. For example Figure 7 as shown, or Figure 8 the long holes shown, should also be covered by the patent protection scope of the present invention.

[0043] In addition Figures 1 to 8 it is taken that there are three perforations 16 as an example, but it does not mean that this case is limited to three perforations 16. Figure 9 As shown, the nine perforations 16 can also provide the effect of allowing the bubbles to escape upward. Therefore, the number of the perforations 16 depends on the demand.

[0044] As can be seen from the above, the drainage impeller 10 of this first embodiment can be applied to the relatively flat drainage cavity of the aforementioned prior art, and can allow the bubbles in the center below to pass through the drainage impeller 10 and escape upward, without accumulating in the center below.

[0045] As Figures 10 to 11 shown, the present invention uses a second preferred embodiment to illustrate a drainage impeller 10' that can allow the bubbles in the center below to escape. It is mainly the same as the aforementioned first embodiment, and the differences are as follows:

[0046] This second embodiment also has a nose tip 31', which is arranged on the disk 11' and extends downward from the disk 11' by a predetermined length.

[0047] The setting of this nose tip 31' can force the bubbles not to concentrate in the center, but to be pushed by the nose tip 31' to be closer to the multiple perforations 16', making it easier for the bubbles to move under the perforations 16' and escape upward through the perforations 16'.

[0048] The remaining structures and achievable effects of this second embodiment are generally the same as those of the aforementioned first embodiment, and will not be elaborated herein again.

[0049] As described above, the content illustrated by the embodiments of the present invention is only for reference, and it cannot be used to limit the patent protection scope of the present invention. Any simple changes or equivalent implementations made according to the claims and the content of the specification of the present invention shall be covered by the patent protection scope of the present invention.

Claims

1. A drainage impeller that allows bubbles in the center below to escape, comprising: A disk, in the shape of a disc, having an upper disk surface and a lower disk surface, and the disk has a plurality of lower vanes protruding from the lower disk surface; And A mandrel, disposed at the center of the disk and extending upward from the disk by a predetermined length, the top of the mandrel being higher than the upper disk surface, and the mandrel having a connecting groove for connecting a drive shaft and being driven to rotate by it; It is characterized in that: The disk is provided with a plurality of through holes, and the distance from the edge of the mandrel to the edge of the disk is defined as a distribution distance. The through holes are distributed within one-third of the distribution distance and close to the mandrel, and the through holes are equiangularly distributed relative to the mandrel.

2. The drainage impeller capable of allowing bubbles in the lower center to escape as claimed in claim 1, wherein The part of each through hole close to the mandrel is narrower than the part far from the mandrel.

3. The drainage impeller capable of allowing the bubbles in the lower center to escape as claimed in claim 1, wherein Each of the through holes is elongated.

4. The drainage impeller capable of allowing the bubbles in the lower center to escape as claimed in claim 1, wherein At least a part of each through hole is located between two adjacent lower vanes.

5. The drainage impeller capable of allowing the bubbles in the lower center to escape as claimed in claim 1, wherein, It further includes a nose, disposed on the disk and extending downward from the disk by a predetermined length.

6. The drainage impeller capable of allowing the bubbles in the lower center to escape as claimed in claim 5, wherein The part of each through hole close to the mandrel is narrower than the part far from the mandrel.

7. The drainage impeller capable of allowing the bubbles in the lower center to escape as claimed in claim 5, wherein Each of the through holes is elongated.

8. The drainage impeller capable of allowing the bubbles in the lower center to escape as claimed in claim 5, wherein At least a part of each through hole is located between two adjacent lower vanes.

9. The drainage impeller capable of allowing the bubbles in the lower center to escape as claimed in claim 1, wherein, The upper disk surface of the disk is provided with a plurality of upper vanes.

10. The drainage impeller capable of allowing the bubbles in the lower center to escape according to claim 9, wherein The upper vanes and the lower vanes are arranged vertically aligned.

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