Drainage impeller capable of guiding air bubbles in lower center to periphery

Abstract

The invention discloses a drainage impeller capable of guiding air bubbles in the lower center to the periphery, which comprises a disc-shaped wheel disc provided with an upper disc surface and a lower disc surface and a plurality of lower blades protruding out of the lower disc surface; 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; the nose is arranged on the wheel disc and extends downwards by a preset length from the wheel disc; wherein the nose tip is located at the circle center of the wheel disc, and the outer diameter of the nose tip is gradually increased from bottom to top; the lower blades extend on the wheel disc in the radial direction to form a long shape, and the end, close to the nose tip, of each lower blade is separated from the nose tip by a preset distance.

Description

Technical Field

[0001] The present invention relates to a drainage device, and particularly to a drainage impeller that can guide bubbles in the center below to the surroundings. Background Art

[0002] When the drainage device for air conditioners operates, 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, the impact between the bubbles and the blades can be effectively reduced, thereby effectively reducing the noise.

[0003] The patent with the publication number CN203837226U discloses a drainage device for an air conditioning device with a low-noise cooling fan. The drainage cavity in this case is relatively flat, and its drainage impeller is also relatively flat and there is no water-deflecting shaft protruding downward below. 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 in the center below the drainage impeller by the vortex and cannot escape. As the bubbles accumulate and grow larger, eventually noise will be caused by the collision between the large bubbles and the blades.

[0004] Therefore, how to discharge the bubbles in the center below this drainage impeller to the outside 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 can guide the bubbles in the center below to the surroundings. It can be applied to the relatively flat drainage cavity of the aforementioned prior art and can guide the bubbles in the center below to the surroundings without accumulating in the center below.

[0006] Another object of the present invention is to provide a drainage impeller that can guide the bubbles in the center below to the surroundings, and can discharge the bubbles guided to the surroundings below during operation.

[0007] To achieve the above object, the present invention provides a drainage impeller that can guide the bubbles in the center below to the surroundings, comprising: 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; 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 connecting groove for connecting a driving shaft and being driven to rotate by it; and a nose, disposed on the disk and extending downward from the disk by a predetermined length; wherein, the nose is located at the center of the disk, and the outer diameter of the nose gradually increases from bottom to top; the plurality of lower blades extend radially on the disk and are in a long shape, and one end of each lower blade close to the nose is separated from the nose by a predetermined distance.

[0008] Thus, the present invention can be applied to the relatively flat drainage cavity of the aforementioned conventional technology, and can guide the bubbles in the center below to the surroundings without accumulating in the center below. In addition, when the present invention is operating, it can discharge the bubbles guided to the surroundings below to the outside. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 is a perspective view of a preferred embodiment of the present invention;

[0010] Figure 2 is a side view of a preferred embodiment of the present invention;

[0011] Figure 3 is a schematic cross-sectional view of a preferred embodiment of the present invention;

[0012] Figure 4 is a bottom view of a preferred embodiment of the present invention;

[0013] Figure 5 is an assembly schematic diagram of a preferred embodiment of the present invention;

[0014] Figure 6 is an assembled cross-sectional schematic diagram of a preferred embodiment of the present invention;

[0015] Figure 7 is another implementation mode diagram of a preferred embodiment of the present invention;

[0016] Figure 8 is yet another implementation mode diagram of a preferred embodiment of the present invention;

[0017] Among them, reference numerals:

[0018] 10: Drainage impeller that can guide the bubbles in the center below to the surroundings;

[0019] 11: Disk;

[0020] 12: Upper disk surface;

[0021] 121: Upper blade;

[0022] 14: Lower disk surface;

[0023] 141: Lower blade;

[0024] 21: Mandrel;

[0025] 22: Connection groove;

[0026] 31: Nose;

[0027] 91: Drainage device;

[0028] 94: Drainage cavity;

[0029] 941: Water inlet;

[0030] 942: Outlet pipe;

[0031] 96: Motor;

[0032] 961: Drive shaft;

[0033] A: Area;

[0034] 31’: Nose;

[0035] 31”: Nose;

[0036] 311”: Bottom section;

[0037] 312”: Middle section;

[0038] 313”: Upper section. Detailed implementation mode

[0039] 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, wherein:

[0040] As Figures 1 to 4 shown, the present invention illustrates a drainage impeller 10 that can guide the bubbles in the center below to the surroundings through a preferred embodiment, which mainly consists of a disk 11, a mandrel 21 and a nose 31, wherein:

[0041] The disk 11 is in a disk shape 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.

[0042] 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 end of the mandrel 21 is higher than the upper disk surface 12. The mandrel 21 has a connection groove 22 for connecting a drive shaft 961 and being driven to rotate by it.

[0043] The nose 31 is arranged on the disk 11 and extends downward from the disk 11 by a predetermined length.

[0044] Among them, the nose tip 31 is located at the center of the wheel 11, and the outer diameter of the nose tip 31 gradually increases from bottom to top.

[0045] The plurality of lower blades 141 extend radially on the wheel 11 to be elongated, and one end of each lower blade 141 close to the nose tip 31 is separated from the nose tip 31 by a predetermined distance. In this embodiment, the heights of the plurality of lower blades 141 can be selected to be the same, but actually they can also be selected to have different heights, depending on the requirements.

[0046] In this embodiment, the nose tip 31 is conical. And the height of the nose tip 31 is preferably not more than three times the height of the plurality of lower blades 141, because if the nose tip 31 is too high, it will affect the height of the drainage cavity provided therein, which is not conducive to the design requirements of the overall flat drainage cavity. In this embodiment, it is designed not to exceed twice the height of the plurality of lower blades 141.

[0047] In practice, multiple upper blades 121 can be selected to be provided on the upper disk surface 12 of the wheel 11 according to the requirements. In this embodiment, the multiple upper blades 121 are selected to be provided, and the multiple upper blades 121 are arranged to be vertically aligned with the multiple lower blades 141. Therefore, the multiple upper blades 121 extend radially on the wheel 11 to be elongated, and one end of each upper blade 121 close to the central axis 21 is separated from the central axis 21 by a predetermined distance, and has a relationship of being mirror - set with respect to the wheel 11 with the multiple lower blades 141, but the lengths are not necessarily the same.

[0048] The above has described the structure of this embodiment. Next, the operating state of this embodiment will be described.

[0049] As Figures 5 to 6 shown, before use, first assemble the drainage impeller 10 of this embodiment into the drainage cavity 94 of a drainage device 91. There is a water inlet 941 below the drainage cavity 94, and a water outlet pipe 942 is provided on the side to discharge the water in the drainage cavity 94 outward. A motor 96 is provided above the drainage cavity 94, and the motor 96 has a drive shaft 961 connected to the central axis 21.

[0050] As Figure 6 And Figure 4As shown, when in use, the motor 96 drives the drainage impeller 10. The water and bubbles located below the disk 11 will form a vortex due to the rotation of the multiple lower blades 141, and then the bubbles will be concentrated towards the center. However, due to the structure of the nose 31, the bubbles will be forced to move upward and outward along the edge of the nose 31 during the rising process. Therefore, when the bubbles rise to the bottom of the disk 11, they will be guided to the edge of the nose 31. At this time, the rotating water in the vortex has generated enough centrifugal force to carry the bubbles outwards. Since the bubbles are continuously guided to the edge of the nose 31 and are carried out between the lower blades 141, and finally carried out of the range of the disk 11 and discharged outwards from the drainage cavity 94, there is no problem of small bubbles aggregating into large bubbles, and thus there is no problem of large bubbles colliding with the blades to generate noise.

[0051] From the above description of the operation, it can be seen that since the bubbles first move along the edge of the nose 31 to the bottom of the disk 11, and there is a predetermined distance between each of the lower blades 141 and the nose 31, therefore, in the area A with this predetermined distance, there will be water with a relatively slow flow rate temporarily stored because it is not stirred by the multiple lower blades 141, and there is less turbulent flow. Therefore, the water and bubbles in this area A hardly cause noise, but the bubbles will still continue to move outwards with the driven water flow. When the bubbles continue to move with the water between the multiple lower blades 141, they will be affected by the multiple lower blades 141 and quickly flow out of the drainage cavity 94 with the water. Therefore, the present invention can be applied to the relatively flat drainage cavity 94 of the aforementioned prior art, and can guide the bubbles in the center below to the periphery, without accumulating in the center below the disk 11; in addition, when the present invention is in operation, it can discharge the bubbles guided around the nose 31 below the disk 11 outwards.

[0052] Figure 7 It shows the state where the bottom end of the nose 31' is in an arc shape. Figure 8 It shows another form of the nose 31'', which is defined from bottom to top as a connected bottom section 311'', a middle section 312'', and an upper section 313''. The outer diameter of the bottom section 311'' gradually increases from bottom to top, the middle section 312'' is cylindrical, and the outer diameter of the upper section 313'' gradually increases from bottom to top. These two forms of the nose 31', 31'' are both deformations of the aforementioned Figures 1 to 4 nose 31 shown, and they are also in the form where their outer diameter gradually increases from bottom to top, and they also have the same effects as the aforementioned nose 31, which is also covered by the scope of the patent application of this case.

[0053] The above is only the content illustrated by the embodiments of the present invention, and it cannot be used to limit the scope of the patent application of the present invention. All simple changes or equivalent implementations made according to the scope of the patent application of the present invention and the content of the patent specification should be covered by the scope of the patent application of the present invention.

Claims

1. A drainage impeller that can guide the bubbles in the center below to the surroundings, comprising: 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; A mandrel, provided at the center of the disk and extending upward from the disk by a predetermined length, the top of the mandrel is higher than the upper disk surface, the mandrel has a connecting groove for connecting a drive shaft and being driven to rotate by it; and a nose, provided on the disk and extending downward from the disk by a predetermined length; It is characterized in that: The nose is located at the center of the disk, and the outer diameter of the nose gradually increases from bottom to top; The plurality of lower blades extend radially on the disk and are in a long shape, and one end of each lower blade close to the nose is separated from the nose by a predetermined distance.

2. The drainage impeller according to claim 1, which can guide the bubbles in the lower center to the surroundings, is characterized in that: The nose is in a conical shape.

3. The drainage impeller according to claim 1, which can guide the bubble in the center below to the surroundings, is characterized in that: The bottom end of the nose is in an arc shape.

4. The drainage impeller according to claim 1, which can guide the bubbles in the lower center to the surroundings, is characterized in that: The nose is defined from bottom to top as a connected bottom section, a middle section, and an upper section. The outer diameter of the bottom section gradually increases from bottom to top, the middle section is in a cylindrical shape, and the outer diameter of the upper section gradually increases from bottom to top.

5. The drainage impeller according to claim 1, which can guide the bubbles in the lower center to the surroundings, is characterized in that: A plurality of upper blades are provided on the upper disk surface of the disk.

6. The drainage impeller according to claim 5, which can guide the bubbles in the lower center to the periphery, is characterized in that: The plurality of upper blades and the plurality of lower blades are arranged vertically aligned.

7. The drainage impeller according to claim 6, which can guide the bubbles in the lower center to the surroundings, is characterized in that: The plurality of upper blades extend radially on the disk and are in a long shape, and one end of each upper blade close to the mandrel is separated from the mandrel by a predetermined distance.

8. The drainage impeller according to claim 1, which can guide the bubbles in the center below to the surroundings, is characterized in that: The heights of the plurality of lower blades are all the same.

9. The drainage impeller according to claim 8, which can guide the bubbles in the lower center to the surroundings, is characterized in that: The height of the nose does not exceed three times the height of the plurality of lower blades.

Images