Vortex self-suction pump impeller

Abstract

The utility model discloses an impeller for a vortex self-suction pump, which comprises a front cover plate and a rear cover plate, the shapes of the front cover plate and the rear cover plate are consistent, the front cover plate and the rear cover plate are designed oppositely, a shaft sleeve is arranged between the front cover plate and the rear cover plate, a positioning column is arranged on the shaft sleeve, positioning holes are arranged on the front cover plate and the rear cover plate, and the front cover plate and the rear cover plate are fixedly connected with the shaft sleeve. A fixing mechanism is arranged between the front cover plate and the rear cover plate, during use, the shaft sleeve is firstly placed on the rear cover plate and fixed through positioning columns and positioning holes on the shaft sleeve, then the front cover plate is placed on the rear cover plate and fixed through matching of the positioning columns and the positioning holes, and therefore assembly of the impeller is completed. And the front cover plate and the rear cover plate are consistent in shape and are symmetrically arranged, so that the types of molds can be reduced, large-scale production is facilitated, the cost is reduced, and the consistent shape of the front cover plate and the rear cover plate can enhance the interchangeability of parts and reduce the maintenance cost of spare parts.

Description

Technical Field

[0001] This utility model belongs to the field of vortex self-priming pump technology, specifically relating to an impeller for a vortex self-priming pump. Background Technology

[0002] In the field of fluid machinery, vortex self-priming pumps, as a key device that combines self-priming capability with vortex boosting characteristics, are widely used in agricultural irrigation, industrial circulation, and municipal water supply. The core component is the impeller, and the design of the impeller directly determines the pump's self-priming performance, operating efficiency, and reliability.

[0003] Traditional impellers typically employ an asymmetrical design for their front and rear cover plates, which differ in shape, size, or flow channel curvature. Asymmetrical structures require separate machining of the front and rear cover plates, resulting in high mold costs and difficulty in ensuring assembly accuracy. Summary of the Invention

[0004] The purpose of this invention is to provide an impeller for a vortex self-priming pump, in order to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: an impeller for a vortex self-priming pump, including a front cover plate and a rear cover plate, the front cover plate and the rear cover plate having the same shape and being designed opposite to each other, a bushing being provided between the front cover plate and the rear cover plate, a positioning post being provided on the bushing, positioning holes being provided on the front cover plate and the rear cover plate, the positioning post and the positioning hole being correspondingly provided, and a fixing mechanism being provided between the front cover plate and the rear cover plate.

[0006] The present invention further describes that the fixing mechanism includes a first slot, a second slot, a card, and a serrated barb. The first slot is opened at the edge of the front cover plate and the rear cover plate, and the second slot is opened at the inclined surface of the front cover plate and the rear cover plate. The number of the first slot and the second slot is several and evenly arranged. The card is snapped onto the front cover plate and the rear cover plate through the first slot. The serrated barb is disposed at one end of the card and is located in the second slot.

[0007] This utility model further illustrates that a sealing ring is provided between the front cover plate and the rear cover plate.

[0008] The present invention further illustrates that the bushing is provided with a bushing hole, and a guide groove is formed in the bushing hole.

[0009] Compared with the prior art, the beneficial effects achieved by this utility model are: This utility model,

[0010] (1) By setting a front cover plate, a rear cover plate, a bushing, a positioning pin, a positioning hole and a fixing mechanism, when in use, the bushing is first placed on the rear cover plate and fixed by the positioning pin and the positioning hole on the bushing. Then the front cover plate is placed on the rear cover plate and fixed by the positioning pin and the positioning hole. Thus, the impeller assembly is completed. Then the front cover plate and the rear cover plate are fixed by the fixing mechanism, so that the front cover plate and the rear cover plate are not easy to fall off. The front cover plate and the rear cover plate have the same shape and are symmetrically set, which can reduce the types of molds, facilitate large-scale production, reduce costs, and the consistent shape of the front cover plate and the rear cover plate can enhance the interchangeability of parts and reduce the cost of maintenance spare parts. Attached Figure Description

[0011] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the fixing mechanism provided in an embodiment of the present utility model;

[0014] Figure 3 This is an overall exploded view provided by an embodiment of the present invention.

[0015] In the figure: 1. Front cover plate; 2. Rear cover plate; 3. Bushing; 4. Positioning pin; 5. Positioning hole; 6. Fixing mechanism; 7. Sealing ring; 8. Bushing hole; 9. Guide groove; 601. First slot; 602. Second slot; 603. Card; 604. Serrated barb. Detailed Implementation

[0016] The following detailed, non-limiting description of the present invention, in conjunction with preferred embodiments and accompanying drawings, is provided. Obviously, the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0017] Please see Figure 1-3 The present invention provides a technical solution: an impeller for a vortex self-priming pump, comprising a front cover plate 1 and a rear cover plate 2, the front cover plate 1 and the rear cover plate 2 having the same shape and being designed opposite to each other, a bushing 3 being provided between the front cover plate 1 and the rear cover plate 2, a positioning post 4 being provided on the bushing 3, positioning holes 5 being provided on the front cover plate 1 and the rear cover plate 2, the positioning post 4 and the positioning hole 5 being provided correspondingly, and a fixing mechanism 6 being provided between the front cover plate 1 and the rear cover plate 2.

[0018] The above solution involves setting up a front cover plate 1, a rear cover plate 2, a bushing 3, a positioning pin 4, a positioning hole 5, and a fixing mechanism 6. In use, the bushing 3 is first placed on the rear cover plate 2 and fixed by the positioning pin 4 and positioning hole 5. Then, the front cover plate 1 is placed on the rear cover plate 2 and fixed by the positioning pin 4 and positioning hole 5. This completes the impeller assembly. The fixing mechanism 6 then secures the front cover plate 1 and rear cover plate 2, preventing them from easily falling off. Furthermore, the front cover plate 1 and rear cover plate 2 have identical shapes and are symmetrically arranged, reducing the types of molds required, facilitating large-scale production, and lowering costs. The identical shapes of the front cover plate 1 and rear cover plate 2 also enhance component interchangeability and reduce maintenance and spare parts costs.

[0019] refer to Figure 2 The fixing mechanism 6 includes a first slot 601, a second slot 602, a card 603, and a serrated barb 604. The first slot 601 is located at the edge of the front cover plate 1 and the rear cover plate 2, and the second slot 602 is located on the inclined surface of the front cover plate 1 and the rear cover plate 2. The number of first slots 601 and second slots 602 is several and evenly arranged. The card 603 is engaged with the front cover plate 1 and the rear cover plate 2 through the first slot 601. The serrated barb 604 is located at one end of the card 603 and is located in the second slot 602.

[0020] The above solution involves setting a first slot 601, a second slot 602, a card 603, and a serrated barb 604. In use, the first slot 601 and the second slot 602 form a spatial positioning system. The first slot 601 provides a radial mounting reference for the card 603. The second slot 602 achieves axial limiting through its inclined surface design. After the serrated barb 604 at the end of the card 603 is embedded in the second slot 602, its toothed structure forms a mechanical engagement with the side wall of the slot, making the front cover plate 1 and the rear cover plate 2 more stable.

[0021] refer to Figure 3 A sealing ring 7 is provided between the front cover plate 1 and the rear cover plate 2.

[0022] The above solution is adopted: by setting a sealing ring 7, during use, the sealing ring 7 is embedded between the front cover plate 1 and the rear cover plate 2 to form a dynamic sealing interface between the impeller and the pump casing.

[0023] refer to Figure 1 The bushing 3 is provided with a bushing hole 8, and a guide groove 9 is provided in the bushing hole 8.

[0024] The above solution is adopted: by setting the bushing hole 8 and the guide groove 9, the guide groove 9 can achieve precise alignment of the pump shaft and the impeller during use.

[0025] The working principle of this utility model:

[0026] In use, first, the bushing 3 is placed on the rear cover plate 2 and fixed by the positioning pin 4 and positioning hole 5 on the bushing 3. Then, the front cover plate 1 is placed on the rear cover plate 2 and fixed by the matching of the positioning pin 4 and positioning hole 5. This completes the assembly of the impeller. The front cover plate 1 and the rear cover plate 2 have the same shape and are symmetrically arranged, which can reduce the types of molds, facilitate large-scale production, and reduce costs. Furthermore, the identical shape of the front cover plate 1 and the rear cover plate 2 can enhance the interchangeability of parts and reduce the cost of maintenance spare parts. Then, the first slot 601 and the... The two slots 602 form a spatial positioning system. The first slot 601 provides a radial mounting reference for the card 603. The second slot 602 achieves axial positioning through an inclined surface design. After the serrated barb 604 at the end of the card 603 is embedded in the second slot 602, its toothed structure forms a mechanical engagement with the side wall of the slot, making the front cover plate 1 and the rear cover plate 2 more stable. The sealing ring 7 is embedded between the front cover plate 1 and the rear cover plate 2 to form a dynamic sealing interface between the impeller and the pump casing. The guide groove 9 can achieve precise alignment of the pump shaft and the impeller.

[0027] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model, and do not 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.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. An impeller for a vortex self-priming pump comprising a front cover plate (1) and a rear cover plate (2), characterized in that: The front cover plate (1) and the rear cover plate (2) are consistent in shape, the front cover plate (1) and the rear cover plate (2) are oppositely designed, an axle sleeve (3) is arranged between the front cover plate (1) and the rear cover plate (2), a positioning column (4) is arranged on the axle sleeve (3), positioning holes (5) are arranged on the front cover plate (1) and the rear cover plate (2), the positioning column (4) and the positioning holes (5) are correspondingly arranged, and a fixing mechanism (6) is arranged between the front cover plate (1) and the rear cover plate (2).

2. A vortex self-priming pump impeller according to claim 1, characterized in that: The fixing mechanism (6) comprises first clamping grooves (601), second clamping grooves (602), a clamping piece (603) and sawtooth-shaped barbs (604), the first clamping grooves (601) are formed at edges of the front cover plate (1) and the rear cover plate (2), the second clamping grooves (602) are formed at inclined surfaces of the front cover plate (1) and the rear cover plate (2), the first clamping grooves (601) and the second clamping grooves (602) are in plurality and are uniformly arranged, the clamping piece (603) is clamped on the front cover plate (1) and the rear cover plate (2) through the first clamping grooves (601), the sawtooth-shaped barbs (604) are arranged at one end of the clamping piece (603), and the sawtooth-shaped barbs (604) are located in the second clamping grooves (602).

3. A vortex self-priming pump impeller according to claim 1, characterized in that: A sealing ring (7) is arranged between the front cover plate (1) and the rear cover plate (2).

4. A vortex self-priming pump impeller according to claim 1, characterized in that: An axle sleeve hole (8) is arranged on the axle sleeve (3), and a guide groove (9) is formed in the axle sleeve hole (8).

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