S-shaped water pump impeller

Abstract

The utility model discloses an S-shaped water pump impeller which comprises a bottom plate, a central shaft groove and a plurality of blades arranged on the bottom plate, the blades are S-shaped, each blade is provided with an outer end and an inner end, the inner ends are connected to the central shaft groove, a first arc-shaped plate and a second arc-shaped plate are arranged between the outer ends and the inner ends, and the first arc-shaped plate and the second arc-shaped plate are connected with the central shaft groove. The first arc-shaped plate and the second arc-shaped plate are concave in opposite directions and are in smooth connection, an outer wall is arranged at the outer end and is an inclined face, and the length of the high edge of the outer wall is smaller than that of the low edge of the outer wall. The S-shaped blades are arranged, the flow guiding effect and the liquid discharging amount are improved, the S-shaped edges are arranged, blade impact is reduced, and the service life of the blades is prolonged.

Description

Technical Field

[0001] This utility model relates to a water pump impeller, specifically an S-type water pump impeller. Background Technology

[0002] The pump impeller is one of the important components of the pump, used to pump liquid in and out.

[0003] Currently, most blades are straight or curved, which do not meet our company's requirements for flow guidance and drainage. Therefore, we have designed an S-shaped blade impeller to meet the requirements for high flow guidance and high drainage performance. Utility Model Content

[0004] To address the shortcomings of the prior art, this invention provides an S-shaped water pump impeller. This invention features S-shaped blades to improve flow guidance and discharge capacity, and the S-shaped edges reduce blade impact and extend blade life.

[0005] To achieve the above technical objectives, the present invention adopts the following technical solution: an S-shaped water pump impeller, comprising a base plate, a central shaft groove, and a plurality of blades disposed on the base plate. The blades are S-shaped and have an outer end and an inner end. The inner end is connected to the central shaft groove. A first arc-shaped plate and a second arc-shaped plate are disposed between the outer end and the inner end. The first arc-shaped plate and the second arc-shaped plate are concave in opposite directions and are smoothly connected. The outer end is provided with an outer wall, which is an inclined surface. The length of the high side of the outer wall is less than the length of the low side.

[0006] Furthermore, both the first arc-shaped plate and the second arc-shaped plate are tilted towards the back of the liquid surface, and the first and second surfaces of the first arc-shaped plate and the second arc-shaped plate are twisted inclined surfaces.

[0007] Furthermore, the angle a1 between the outer end and the tangent corresponding to the central shaft groove is 30°, and the angle a2 between the inner end and the tangent corresponding to the central shaft groove is 60°.

[0008] Furthermore, the edge of the base plate between two adjacent blades is an S-edge, the first end of the S-edge and the lower edge form an angle a3 of 30°, and the second end of the S-edge is tangent to the lower edge.

[0009] In summary, this utility model achieves the following technical effects:

[0010] This invention features S-shaped blades, which improve the flow guiding effect and drainage volume, resulting in high efficiency. The S-shaped edges also reduce blade impact and extend blade life. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of an S-type water pump impeller. Detailed Implementation

[0012] The present invention will be further described in detail below with reference to the accompanying drawings.

[0013] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

[0014] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0015] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0016] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0017] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0018] Example:

[0019] Figure 1 This is a schematic diagram of an S-shaped water pump impeller, including a base plate 1, a central shaft groove 3, and a plurality of blades 2 disposed on the base plate 1. The blades 2 are S-shaped and have an outer end 21 and an inner end 22. The inner end 22 is connected to the central shaft groove 3. A first arc plate 23 and a second arc plate 24 are disposed between the outer end 21 and the inner end 22. The first arc plate 23 and the second arc plate 24 are concave in opposite directions and are smoothly connected. The outer end 21 is provided with an outer wall 25, which is an inclined surface. The length of the high side 26 of the outer wall 25 is less than the length of the low side 27.

[0020] This invention features a central shaft groove 3 for mounting a central shaft, and S-shaped blades to increase drainage flow. The S-structure formed by the first arc-shaped plate 23 and the second arc-shaped plate 24 enhances the strength and smoothness of the blade's drainage. The outer wall is sloped to further improve flowability, and the retracted upper surface also increases the overall blade strength and reduces resistance.

[0021] Both the first arc-shaped plate 23 and the second arc-shaped plate 24 are tilted towards the back of the liquid surface. The first surface 28 and the second surface 29 of the first arc-shaped plate 23 and the second arc-shaped plate 24 are twisted inclined surfaces. The entire blade tilts backward to improve the flow guiding effect, and the twisted inclined surfaces of the first surface 28 and the second surface 29 improve the strength of the blade.

[0022] The angle a1 between the outer end 21 and the tangent of the corresponding central shaft groove 3 is 30°, and the angle a2 between the inner end 22 and the tangent of the corresponding central shaft groove 3 is 60°. In the experiment, it was found that setting the second angle to 30° and 60° is more conducive to flow guidance and results in a larger drainage volume.

[0023] The base plate 1 has an S-edge 11 between two adjacent blades 2. The first end 12 of the S-edge 11 forms an angle α3 of 30° with the lower edge 27, and the second end 13 of the S-edge 11 is tangent to the lower edge 27. The S-edge 11 can reduce the impact on the blades during liquid backflow and reduce damage to the blades.

[0024] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall fall within the scope of the technical solution of the present utility model.

Claims

1. An S-shaped water pump impeller, characterized by: The utility model relates to a kind of centering device, including bottom plate (1), center axis slot (3), be provided on the bottom plate (1) several blades (2), the blade (2) is S type, the blade (2) has outer end (21), inner end (22), the inner end (22) is connected to the center axis slot (3), first arc plate (23) and second arc plate (24) are provided between the outer end (21) and the inner end (22), the first arc plate (23) and the second arc plate (24) are respectively concave to opposite direction and smoothly connected, outer wall (25) is provided in the outer end (21), the outer wall (25) is inclined plane, the length of the high direction side (26) of the outer wall (25) is less than the length of low direction side (27).

2. A S-type water pump impeller according to claim 1, characterized in that: The first arc plate (23) and the second arc plate (24) are both inclined to the liquid surface, and the first face (28) and the second face (29) of the first arc plate (23) and the second arc plate (24) are twisted inclined planes.

3. A S-type water pump impeller according to claim 1, characterized in that: The included angle a1 between the outer end (21) and the tangent line corresponding to the center axis slot (3) is 30°, and the included angle a2 between the inner end (22) and the tangent line corresponding to the center axis slot (3) is 60°.

4. A S-type water pump impeller according to claim 1, characterized in that: The edge of the bottom plate (1) between two adjacent blades (2) is an S edge (11), the included angle a3 between the first end (12) of the S edge (11) and the low direction side (27) is 30°, and the second end (13) of the S edge (11) is tangent to the low direction side (27).

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