CN216430039U - Impeller assembly and fluid pump comprising same - Google Patents

Abstract

The utility model discloses an impeller assembly and a fluid pump including the same. The impeller assembly includes a rotating shaft and an impeller; the peripheral surface of the rotating shaft is provided with a clamping part; the impeller includes an impeller body and a clamping piece, the impeller body is provided with an insertion hole, and the clamping piece is arranged at the hole of the insertion hole One end of the clipping piece is connected to the impeller main body, the clipping piece can be elastically stretched around the one end of the clipping piece, and the inner side wall of the clipping piece is provided with a part that can cooperate with the clipping part. The matching portion; wherein, the rotating shaft is inserted into the insertion hole, and the snap portion is snap-fitted with the matching portion. The impeller assembly of the above structure is easy to assemble between the impeller and the rotating shaft. The utility model also discloses a fluid pump adopting the above impeller assembly.

Description

Impeller assembly and fluid pump containing the same

technical field

The utility model relates to the field of pumps, in particular to an impeller assembly and a fluid pump comprising the same.

Background technique

Fluid pumps are typically equipped with an impeller assembly that includes an impeller and a shaft mounted to the impeller. In an existing technology, the impeller is provided with an insertion hole, and the connection between the insertion hole and the rotating shaft is realized by an interference fit, which is difficult to assemble. In another existing technology, the rotating shaft is first inserted into the insertion hole of the impeller, and the rotating shaft is fixed by additional fasteners. However, the impeller assembly of this structure is complicated in structure and complicated in assembly.

Utility model content

The purpose of the present invention is to solve at least one of the technical problems existing in the prior art, and to provide an impeller assembly, which is easy to assemble between the impeller and the rotating shaft.

The utility model also provides a fluid pump comprising the above impeller assembly.

The impeller assembly according to the embodiment of the first aspect of the present invention includes: a rotating shaft and an impeller; a clamping portion is provided on the peripheral surface of the rotating shaft; the impeller includes an impeller body and a clamping piece, the impeller body is provided with an insertion hole, and the clamping The tabs are arranged around the orifice of the insertion hole, one end of the clips is connected to the impeller main body, the clips can be elastically stretched around the one end of the clips, and the clips are The inner side wall is provided with a matching portion which can be matched with the engaging portion; wherein, the rotating shaft is inserted into the inserting hole, and the engaging portion is engaged with the engaging portion.

The impeller assembly according to the embodiment of the first aspect of the present invention has at least the following beneficial effects: the impeller body is provided with an insertion hole, the rotating shaft is inserted in the insertion hole, and the rotating shaft is provided with a clamping portion, and the clamping piece is arranged in the insertion hole. The opening of the connection hole can be elastically stretched around one end. When the rotating shaft is inserted into the insertion hole, the clamping piece is stretched until the clamping part of the clamping piece cooperates with the matching part, so that the rotating shaft is installed on the impeller. The impeller assembly of the above structure is easy to assemble between the impeller and the rotating shaft.

According to some embodiments of the present invention, at least two of the snap-connecting pieces are provided and are provided around the rotating shaft.

According to some embodiments of the present invention, the inner side wall of the clip is adapted to the circumferential surface of the rotating shaft.

According to some embodiments of the present invention, the engaging portion is configured as a snap groove circumferentially disposed along the circumference of the rotating shaft, and the matching portion is configured as a snap protrusion.

According to some embodiments of the present invention, the outer surface of the matching portion is an arc surface.

According to some embodiments of the present invention, the rotating shaft is provided with a default portion, the hole wall of the insertion hole is provided with a positioning block adapted to the default portion, and the default portion is provided with the positioning block. The relative circumferential positions of the shaft and the impeller are matched and positioned.

According to some embodiments of the present invention, the end of the rotating shaft inserted into the insertion hole is provided with a chamfer.

According to some embodiments of the present invention, the impeller includes an impeller body and the clipping piece, and the impeller body and the clipping piece are an integral injection molding structure.

The fluid pump according to the embodiment of the second aspect of the present invention includes the impeller assembly of the embodiment of the first aspect of the present invention.

The fluid pump according to the embodiment of the second aspect of the present invention has at least the following beneficial effects: due to the use of the above-mentioned impeller assembly, the impeller and the rotating shaft are easily assembled.

Additional aspects and advantages of the invention will be set forth, in part, from the following description, and in part will be apparent from the following description, or learned by practice of the invention.

Description of drawings

Below in conjunction with accompanying drawing and embodiment, the utility model is further described;

1 is a schematic perspective view of an impeller assembly according to an embodiment of the present invention;

Fig. 2 is the three-dimensional schematic diagram of the impeller of the embodiment of the utility model;

FIG. 3 is a three-dimensional schematic diagram of a rotating shaft according to an embodiment of the present invention;

4 is a cross-sectional view of an impeller assembly according to an embodiment of the present invention;

FIG. 5 is an enlarged schematic view of A of FIG. 4 .

Reference number:

The rotating shaft 100, the clamping part 110, the default part 120, the chamfer 130;

The impeller 200 , the impeller main body 210 , the insertion hole 211 , the positioning block 212 , the clamping piece 220 , and the matching portion 221 .

Detailed ways

This part will describe the specific embodiments of the present invention in detail, and the preferred embodiments of the present invention are shown in the accompanying drawings. Understand each technical feature and overall technical solution of the present invention, but it should not be construed as a limitation on the protection scope of the present invention.

In the description of the present utility model, it should be understood that the orientation descriptions related to orientations, such as up, down, front, rear, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings, only It is for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

In the description of the present utility model, the meaning of several is one or more, the meaning of multiple is two or more, greater than, less than, exceeding, etc. are understood as not including this number, above, below, within, etc. are understood as including this number. If it is described that the first and the second are only for the purpose of distinguishing technical features, it cannot be understood as indicating or implying relative importance, or indicating the number of the indicated technical features or the order of the indicated technical features. relation.

In the description of the present invention, unless otherwise clearly defined, words such as setting, installation, connection should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution .

Referring to FIG. 1 , it is an impeller assembly of an embodiment of the present invention.

1 to 5 , in this embodiment, the impeller assembly includes a rotating shaft 100 and an impeller 200 ; the circumferential surface of the rotating shaft 100 is provided with a clamping portion 110 ; the impeller 200 includes an impeller body 210 and a clamping piece 220 , and the impeller body 210 is provided with The insertion hole 211, the clamping piece 220 is arranged around the opening of the insertion hole 211, one end of the clamping piece 220 is connected to the impeller main body 210, the clamping piece 220 can be elastically stretched around one end of itself, and the The inner side wall is provided with a matching portion 221 that can cooperate with the engaging portion 110 ; the rotating shaft 100 is inserted into the insertion hole 211 , and the engaging portion 110 is snap-fitted with the matching portion 221 . The impeller body 210 is provided with an insertion hole 211 , the rotating shaft 100 is inserted in the insertion hole 211 , and the rotating shaft 100 is provided with a clamping portion 110 , and the clamping piece 220 is disposed around the opening of the insertion hole 211 and can be elastically wound around one end. When the rotating shaft 100 is inserted into the insertion hole 211 , the clamping piece 220 is spread open until the clamping part 110 of the clamping piece 220 is matched with the matching part 221 , so that the rotating shaft 100 is installed on the impeller 200 . In the impeller assembly of the above structure, the impeller 200 and the rotating shaft 100 are easily assembled.

Referring to FIG. 1 to FIG. 5 , in this embodiment, there are three clamping pieces 220 and are arranged around the rotating shaft 100 . The three clamping pieces 220 are arranged around the rotating shaft 100 , which facilitates the more stable connection between the rotating shaft 100 and the impeller 200 . Optionally, in some other embodiments, the number of the clips 220 may be configured as one, two, or more than three.

Referring to FIG. 1 to FIG. 5 , in this embodiment, the inner side wall of the clamping piece 220 is adapted to the peripheral surface of the rotating shaft 100 . The above structure is beneficial for the clamping piece 220 to more stably fix the rotating shaft 100 when the rotating shaft 100 is inserted into the insertion hole 211 .

Referring to FIGS. 3 to 4 , in the present embodiment, the engaging portion 110 is configured as a snap groove arranged around the circumference of the rotating shaft 100 , and the matching portion 221 is configured as a snap protrusion. The above structure is convenient for processing, simple in structure and easy to implement. In this embodiment, the cross section of the card slot is rectangular. In some other embodiments, optionally, the engaging portion 110 may also be configured as a bulging protrusion on the rotating shaft 100 , and the matching portion 221 is configured as a card slot provided on the engaging piece 220 .

Referring to FIG. 4 to FIG. 5 , in this embodiment, the outer surface of the matching portion 221 is an arc surface. When the rotating shaft 100 is inserted into the insertion hole 211 , the engaging piece 220 is stretched, the matching portion 221 abuts one end of the rotating shaft 100 , and the matching portion 221 of the arc-shaped surface can smoothly abut with the rotating shaft 100 , so as to be spread more smoothly The clamping piece 220 facilitates the insertion of the rotating shaft 100 into the insertion hole 211 .

3 to 5 , in this embodiment, the rotating shaft 100 is provided with a default portion 120 , the hole wall of the insertion hole 211 is provided with a positioning block 212 adapted to the default portion 120 , and the default portion 120 and the positioning block 212 matches and locates the relative circumferential positions of the shaft 100 and the impeller 200 . The positioning block 212 and the default portion 120 of the above structure are beneficial to the circumferential positioning between the rotating shaft 100 and the impeller 200 , and at the same time facilitate the synchronous rotation of the rotating shaft 100 and the impeller 200 . In this embodiment, the default part 120 is a groove provided on the rotating shaft 100 , and the positioning block 212 is a convex block provided on the hole wall of the insertion hole 211 and adapted to the default part 120 .

Referring to FIG. 3 to FIG. 5 , in this embodiment, the end of the rotating shaft 100 inserted into the insertion hole 211 is provided with a chamfer 130 . The chamfer 130 is provided to facilitate the insertion of the rotating shaft 100 into the insertion hole 211 .

Referring to FIGS. 1 to 4 , in this embodiment, the impeller 200 includes an impeller body 210 and a clamping piece 220 , and the impeller body 210 and the clamping piece 220 are integrally injection-molded. The impeller body 210 and the clips 220 are configured as an integral injection molding structure, which is beneficial to reduce the number of parts to be assembled, facilitates assembly, and enables the clips 220 to have better elasticity. It can be understood that, the impeller main body 210 and the clamping piece 220 may also be a split injection molding structure, and the two are connected together after being manufactured separately.

In this embodiment, a fluid pump is provided, and the fluid pump adopts the above-mentioned impeller assembly. Due to the above-mentioned impeller assembly, the assembly between the impeller 200 and the rotating shaft 100 is easy.

The embodiments of the present utility model have been described in detail above in conjunction with the accompanying drawings, but the present utility model is not limited to the above-mentioned embodiments, and within the knowledge scope possessed by those of ordinary skill in the technical field, the present utility model can also be used without departing from the purpose of the present utility model. make various changes.

Claims (9)

1. An impeller assembly, comprising:

a rotating shaft (100) having a circumferential surface provided with a locking portion (110);

the impeller (200) comprises an impeller main body (210) and a clamping sheet (220), wherein the impeller main body (210) is provided with an insertion hole (211), the clamping sheet (220) is arranged around an orifice of the insertion hole (211), one end of the clamping sheet (220) is connected to the impeller main body (210), the clamping sheet (220) can be elastically spread around the one end of the clamping sheet, and the inner side wall of the clamping sheet (220) is provided with a matching part (221) which can be matched with the clamping part (110); wherein,

the rotating shaft (100) is inserted into the inserting hole (211), and the clamping portion (110) is in clamping fit with the matching portion (221).

2. The impeller assembly of claim 1, wherein: the engaging pieces (220) are provided in at least two and around the rotating shaft (100).

3. The impeller assembly of claim 1, wherein: the inner side wall of the clamping sheet (220) is matched with the circumferential surface of the rotating shaft (100).

4. The impeller assembly of claim 1, wherein: the clamping portion (110) is configured to be a clamping groove which is circumferentially arranged along the rotating shaft (100), and the matching portion (221) is configured to be a clamping protrusion.

5. The impeller assembly of claim 4, wherein: the outer surface of the matching part (221) is an arc-shaped surface.

6. The impeller assembly of claim 1, wherein: the rotating shaft (100) is provided with a default part (120), the hole wall of the inserting hole (211) is provided with a positioning block (212) matched with the default part (120), and the default part (120) is matched with the positioning block (212) and positions the relative circumferential position of the rotating shaft (100) and the impeller (200).

7. The impeller assembly of claim 1, wherein: the end part of the rotating shaft (100) inserted into the inserting hole (211) is provided with a chamfer (130).

8. The impeller assembly of claim 1, wherein: the impeller main body (210) and the clamping sheet (220) are of an integral injection molding structure.

9. A fluid pump, comprising: an impeller assembly according to any one of claims 1 to 8.

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