Stainless steel impeller for water pump

Abstract

The utility model discloses a stainless steel impeller for a water pump, and belongs to the technical field of water pump accessories. The technical problem of how to manufacture the impeller for the water pump by adopting a stainless steel material is solved. According to the technical scheme, the sealing device is characterized by comprising a first cover body, a second cover body, a sealing body, a blade and a shaft seat, at least one of the first cover body, the second cover body, the blade and the shaft seat is made of stainless steel, and the first cover body and the second cover body are located on the two sides of the sealing body respectively; the shaft seat is located in the center of the first cover body and fixes the first cover body and the second cover body in a riveting mode, clamping grooves are formed in the blades, the multiple blades are evenly distributed in the circumferential direction of the sealing body in a clamped mode, and the impeller has the advantages of reducing the manufacturing cost, improving corrosion resistance and improving the use reliability of the impeller.

Description

Technical Field

[0001] This invention relates to the technical field of water pump impeller accessories, and in particular to a stainless steel impeller for water pumps. Background Technology

[0002] Currently, water pumps are equipped with impeller components, most of which are made of copper. The impeller is a one-piece structure, and the cost of manufacturing such a one-piece impeller is relatively high.

[0003] For example, patent document CN201730858U describes a water pump impeller, belonging to the field of mechanical technology. The impeller includes blades and a disc-shaped wheel. The wheel has a connecting hole at its center for a drive shaft to pass through. The blades are fixed to the wheel with the connecting hole as the center. The blades are arc-shaped and twisted to have a degree of torsion, ranging from 5° to 70°. This integrated structure has high processing costs and is difficult to control in terms of processing accuracy.

[0004] The technical problem that needs to be solved is how to use stainless steel to replace the copper material previously used to process the impeller. Since stainless steel has better ductility than copper, it is even more important to improve the processing precision. Utility Model Content

[0005] To address the aforementioned technical problems and shortcomings—specifically, how to manufacture impellers for water pumps using stainless steel—this invention provides a stainless steel impeller for water pumps.

[0006] To achieve the above and other related objectives, the present invention adopts the following technical solution:

[0007] A stainless steel impeller for a water pump includes a first cover, a second cover, a sealing body, blades, and a shaft seat. At least one of the first cover, the second cover, the blades, and the shaft seat is made of stainless steel. The first cover and the second cover are located on opposite sides of the sealing body. The shaft seat is located at the center of the first cover and is fixed by riveting. The blades are provided with slots, and a number of blades are evenly distributed around the circumference of the sealing body.

[0008] Preferably, the sealing body includes a rubber sealing ring and a plastic spacer. The rubber sealing ring has two symmetrical concave arc surfaces. The edge of the groove on the blade is provided with an anti-detachment protrusion, which is fastened to the arc surface.

[0009] Preferably, both the first cover and the second cover are provided with elongated grooves on their circumferential surfaces, the elongated grooves being used for blade insertion and positioning.

[0010] Preferably, limiting grooves are provided on the periphery of both the first cover and the second cover, and the limiting grooves are used to limit the insertion of the blade.

[0011] Preferably, the rubber sealing ring is made of rubber, the plastic spacer is made of plastic, and they are sealed together with the first cover and the second cover.

[0012] Preferably, the bearing seat is provided with a retaining ring and a shaft hole, and the inner edges of the first cover and the second cover are respectively clamped and engaged at the retaining ring, and a rivet hole is also provided at the retaining ring position.

[0013] In summary, the present invention provides at least one of the following beneficial technical effects:

[0014] 1. This solution adopts a modular assembly method to manufacture the impeller, which can improve the machining accuracy of each part of the impeller and make it easier to machine the corresponding parts. Stainless steel is used instead of the existing copper material, which can further reduce the cost of metal materials and is more corrosion resistant.

[0015] 2. The assembly method of the first and second covers is highly efficient. It is reflected in the fact that all three are directly fixed by riveting on the shaft seat, which also fixes the sealing body. The blades are fixed by plugging. At the same time, the long grooves and limiting grooves on the first and second covers provide multi-directional limiting, making the structure firm and reliable. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of an embodiment of the present invention;

[0017] Figure 2 This is an exploded view of the structure of an embodiment of the present invention;

[0018] Figure 3 This is a top view of the structure of an embodiment of the present invention;

[0019] Figure 4 yes Figure 3 A sectional view along line AA;

[0020] Figure 5 This is a schematic diagram of the assembly explosion of the seal and blades.

[0021] Explanation of reference numerals for major components:

[0022] 1. First cover; 2. Second cover; 3. Sealing body; 31. Rubber sealing ring; 311. Arc surface; 32. Plastic spacer; 4. Blade; 41. Slot; 42. Protrusion; 5. Shaft seat; 51. Snap ring; 52. Shaft hole; 53. Riveting hole; 6. Long groove; 7. Limiting groove. Detailed Implementation

[0023] The following specific examples illustrate the implementation of this invention. Those skilled in the art can easily understand other advantages and effects of this invention from the content disclosed in this specification. This invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this invention. It should be noted that, unless otherwise specified, the following embodiments and features can be combined with each other.

[0024] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. The illustrations only show the components related to the present invention and are not drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the form, quantity and proportion of each component can be changed at will, and the layout of the components may also be more complex.

[0025] The following is in conjunction with the appendix Figure 1-5 The specific embodiments of the present invention will be further described below.

[0026] Example:

[0027] One embodiment of the present invention is disclosed. For example... Figure 1 and 2 As shown, a stainless steel impeller for a water pump includes a first cover 1, a second cover 2, a sealing body 3, blades 4, and a shaft seat 5. At least one of the first cover 1, the second cover 2, the blades, and the shaft seat 5 is made of stainless steel. The first cover 1 and the second cover 2 are located on both sides of the sealing body 3, and the shaft seat 5 is located at the center of the first cover 1 and is fixed by riveting. The blades 4 are provided with slots 41, and a number of blades 4 are evenly distributed around the circumference of the sealing body 3.

[0028] To minimize the use of copper, stainless steel is used in its manufacture. Preferably, the first cover 1, the second cover 2, the blade, and the bearing 5 can all be made of stainless steel.

[0029] Stainless steel has better ductility than copper. Stainless steel possesses high ductility, and its austenitic structure provides good toughness and plasticity, allowing it to maintain good strength and ductility even at low temperatures. In contrast, copper has better ductility, but not as much as stainless steel.

[0030] Comparison of the ductility of stainless steel and copper:

[0031] Stainless steel: Stainless steel has high ductility and maintains stable mechanical properties under stress. Its austenitic structure provides good toughness and plasticity, making it suitable for a variety of structural and engineering applications.

[0032] Copper: Copper has good ductility and is easy to process into various complex shapes, but its ductility is not as good as that of stainless steel.

[0033] Comparison of other properties of stainless steel and copper:

[0034] Corrosion resistance: Stainless steel has excellent corrosion resistance, especially 304 and 316 stainless steel, which can resist a variety of corrosive media. Copper is prone to oxidation and discoloration in chlorinated water and requires regular maintenance.

[0035] Based on the above structure, more specifically, combined Figure 2 , Figure 3 and Figure 4 The sealing body 3 includes a rubber sealing ring 31 and a plastic spacer 32. The rubber sealing ring 31 has two symmetrically concave arc surfaces 311. The edge of the groove 41 on the blade 4 is provided with an anti-detachment protrusion 42, which is fastened to the arc surface 311. Long grooves 6 are provided on the circumference of both the first cover 1 and the second cover 2, for limiting the insertion of the blade 4. Limiting grooves 7 are provided on the periphery of both the first cover 1 and the second cover 2, for limiting the insertion of the blade 4. The rubber sealing ring 31 is made of rubber, and the plastic spacer 32 is made of plastic, and they seal together with the first cover 1 and the second cover 2. A retaining ring 51 and a shaft hole 52 are provided on the shaft seat 5. The inner edges of the first cover 1 and the second cover 2 are respectively clamped and engaged at the retaining ring 51. A riveting hole 53 is also provided at the position of the retaining ring 51.

[0036] In summary, this solution employs a modular assembly method to manufacture the impeller, which improves the machining precision of each part and makes it easier to machine the corresponding shapes. Using stainless steel instead of the existing copper material further reduces metal material costs. The assembly method of the first cover 1 and the second cover 2 is highly efficient, as all three components are directly fixed by riveting on the shaft seat 5, which also secures the sealing body 3. The blades 4 are fixed by insertion, and multi-directional positioning is achieved through the long grooves 6 and limiting grooves 7 on the first cover 1 and the second cover 2, resulting in a robust and reliable structure.

[0037] Assembly method: The plastic spacer ring 32 and the rubber sealing ring 31 are combined to form the sealing body 3. The sealing body 3 and the shaft seat 5 are placed on the first cover 1, and the second cover 2 is placed on top. The first cover 1 and the second cover 2 are respectively located on both sides of the sealing body 3. The blades 4 are inserted according to the number of blades 4 and the position of the long groove 6. Finally, the shaft seat 5 is riveted by a riveting machine to complete the entire assembly.

[0038] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the scope of the invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent changes made to the structure, shape, and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. A stainless steel impeller for a water pump, comprising a first cover (1), a second cover (2), a sealing body (3), blades (4), and a shaft seat (5), characterized in that, The first cover (1), the second cover (2), the blade and the shaft seat (5) are made of stainless steel. The first cover (1) and the second cover (2) are located on both sides of the sealing body (3). The shaft seat (5) is located at the center of the first cover (1) and is fixed by riveting to fix the first cover (1) and the second cover (2). The blade (4) is provided with a slot (41). Several blades (4) are evenly distributed in the circumferential direction of the sealing body (3). The sealing body (3) includes a rubber sealing ring (31) and a plastic spacer (32). The rubber sealing ring (31) has two symmetrical concave arc surfaces (311). The edge of the slot (41) on the blade (4) is provided with an anti-detachment protrusion (42). The protrusion (42) is fastened to the arc surface (311).

2. The stainless steel impeller for a water pump according to claim 1, characterized in that, Both the first cover (1) and the second cover (2) are provided with long grooves (6) on their circumferential surfaces, and the long grooves (6) are used for the insertion and positioning of the blades (4).

3. The stainless steel impeller for a water pump according to claim 2, characterized in that, The first cover (1) and the second cover (2) are both provided with limiting grooves (7) around their periphery, and the limiting grooves (7) are used to limit the insertion of the blade (4).

4. The stainless steel impeller for a water pump according to claim 1, characterized in that, The rubber sealing ring (31) is made of rubber, and the plastic spacer (32) is made of plastic, and they are sealed together with the first cover (1) and the second cover (2).

5. A stainless steel impeller for a water pump according to claim 1, characterized in that, The bearing seat (5) is provided with a retaining ring (51) and a shaft hole (52). The inner edges of the first cover (1) and the second cover (2) are respectively clamped and engaged at the retaining ring (51). A rivet hole (53) is also provided at the position of the retaining ring (51).

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