A water pump

Abstract

The application belongs to the field of water pumps, and particularly relates to a water pump, which comprises a pump body with a cavity, an impeller body installed in the cavity of the pump body, the impeller body comprising an upper circular sheet, a lower circular sheet and a plurality of single circular-arc blades, the plurality of single circular-arc blades being arranged in a circular array and located between the upper circular sheet and the lower circular sheet, the lower circular sheet being provided with a mounting hole, an impeller seat comprising a base and a plurality of three-dimensional twisted blades arranged in a circular array on the base, the base being in butt joint with the mounting hole, the plurality of three-dimensional twisted blades corresponding to the plurality of single circular-arc blades one by one, the single circular-arc blades and the three-dimensional twisted blades having different curvatures, the corresponding single circular-arc blades and three-dimensional twisted blades jointly forming impeller blades, and the plurality of impeller blades and the inner wall of the cavity jointly enclosing a plurality of closed chambers for pumping. The application can simplify the impeller processing procedure and reduce the processing cost.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of water pumps, in particular to a water pump. BACKGROUND

[0002] Water pumps are widely used in many industrial and civilian fields, and the impeller as one of the core components of the water pump, its structure design and performance directly affect the working efficiency and running stability of the water pump. The traditional water pump impeller usually adopts an integral structure, although this structure can meet the basic use requirements to some extent, but it also has some limitations, when processing the impeller with twisted blades, it is difficult to demold, or the demolding process is complex, and the processing cost is high. For example, in the Chinese patent application for invention with publication number CN105179304A, a plastic corrosion-resistant and wear-resistant pump and its impeller forming die are disclosed, the forming die in which can produce blades with different curvatures, but the impeller runner slide block is divided into three groups and must be taken out in sequence, which will cause the demolding process to be complicated, the production cost to be increased, and it is difficult to design an automatic demolding mechanism, which cannot meet the economic production demand. SUMMARY

[0003] The purpose of the present application is to provide a water pump, which aims to solve the technical problems of complex processing procedure and high cost of the impeller in the prior art.

[0004] To achieve the above-mentioned purpose, the water pump provided by the embodiments of the present application comprises: a pump body having a cavity inside; an impeller body installed in the cavity of the pump body, the impeller body comprising an upper circular plate, a lower circular plate and a plurality of single circular arc blades, the plurality of single circular arc blades being arranged in a circular array and located between the upper circular plate and the lower circular plate, the lower circular plate having a mounting hole; an impeller seat comprising a base and a plurality of three-dimensional twisted blades arranged in a circular array on the base, the base being in butt joint with the mounting hole, the plurality of three-dimensional twisted blades corresponding to the plurality of single circular arc blades one by one, the single circular arc blades and the three-dimensional twisted blades having different curvatures, the corresponding single circular arc blades and three-dimensional twisted blades jointly forming impeller blades, and the plurality of impeller blades and the inner wall of the cavity jointly enclosing a plurality of closed chambers for pumping.

[0005] Optionally, the upper circular plate and the lower circular plate are arranged in parallel, the single circular arc blades are arranged perpendicular to the upper circular plate and the lower circular plate at the same time, and the single circular arc blades and the three-dimensional twisted blades are smoothly transitioned at the positions where they are jointed with each other.

[0006] Optionally, the single circular arc blades and the three-dimensional twisted blades are each provided with 6 pieces.

[0007] Optionally, the single circular-arc blade is provided with a first hot-melt column protruding downward, the base is provided with a first matching hole corresponding to the position of the first hot-melt column, the first hot-melt column is inserted and matched with the first matching hole, the three-dimensional twisted blade is provided with a second hot-melt column protruding upward, the upper circular plate is provided with a second matching hole corresponding to the position of the second hot-melt column, the second hot-melt column is inserted and matched with the second matching hole, and the impeller body and the impeller base are connected by hot riveting through the first hot-melt column and the second hot-melt column.

[0008] Optionally, the single circular-arc blade is provided with a groove at one end close to the three-dimensional twisted blade, the groove extends along the vertical direction, the three-dimensional twisted blade is provided with a third hot-melt column at one end close to the single circular-arc blade, the third hot-melt column extends along the vertical direction and is placed in the groove, the upper circular plate is provided with a third matching hole corresponding to the position of the third hot-melt column, the third hot-melt column is inserted and matched with the third matching hole, and the impeller body and the impeller base are connected by hot riveting through the third hot-melt column.

[0009] Optionally, the top surface of the upper circular plate is provided with a boss protruding upward, the boss is provided with a mounting groove, and the mounting groove is used for placing an impeller rotating ring.

[0010] Optionally, the second matching hole is located on the inner side of the boss, and the third matching hole is located on the outer side of the boss.

[0011] Optionally, the bottom surface of the upper circular plate is provided with a wire slot, the wire slot continues the curvature of the single circular-arc blade, and the three-dimensional twisted blade is clamped in the wire slot.

[0012] Optionally, the bottom surface of the base is provided with an annular mounting wall protruding downward, an inner wall of the mounting wall is provided with a plurality of tooth openings opening along the vertical direction, and the tooth openings are used for matching with an inner magnet.

[0013] Optionally, the mounting wall is penetrated by a plurality of round holes along the radial direction of the mounting wall, the round holes are used for inserting a bolt body to be connected with a magnetic driving part of a water pump.

[0014] Compared with the prior art, the one or more technical solutions provided by the water pump provided by the embodiment of the present application at least have one of the following technical effects: the plurality of single circular arc blades and the plurality of three-dimensional twisted blades are one-to-one corresponding and jointly spliced into the impeller blade, and the spliced blade structure has unique advantages, on the one hand, according to the principle of fluid dynamics, a more reasonable blade shape and twist angle can be designed, so that the impeller can better adapt to the flow characteristics of the fluid during operation, improve the fluid conveying efficiency, and reduce energy loss; on the other hand, the impeller is divided into two parts for injection molding, and the two parts can be spliced into one after being separately injection molded, and the mold only needs two flow channel sliders to complete the injection molding of the blade, which simplifies the mold structure, improves the mold forming efficiency and reduces the processing cost. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0016] Figure 1 The structure schematic diagram of the impeller body and the impeller seat in the water pump in the embodiment of the present application in the assembled state is shown in the figure.

[0017] Figure 2 The structure schematic diagram of the other side of the impeller body in the embodiment of the present application is shown in the figure. Figure 1 The structure schematic diagram of the other side of the impeller body in the embodiment of the present application is shown in the figure.

[0018] Figure 3 The structure schematic diagram of the impeller body in the embodiment of the present application is shown in the figure.

[0019] Figure 4 The structure schematic diagram of the other side of the impeller body in the embodiment of the present application is shown in the figure.

[0020] Figure 5 The structure schematic diagram of the impeller seat in the embodiment of the present application is shown in the figure.

[0021] Figure 6 The structure schematic diagram of the other side of the impeller seat in the embodiment of the present application is shown in the figure.

[0022] Figure 7 The longitudinal cross-sectional structure schematic diagram of the impeller body and the impeller seat in the assembled state in the embodiment of the present application is shown in the figure.

[0023] Figure 8 The cross-sectional structure schematic diagram of the other side of the impeller body in the embodiment of the present application is shown in the figure. Figure 7 The cross-sectional structure schematic diagram of the other side of the impeller body in the embodiment of the present application is shown in the figure.

[0024] In the figure, various reference signs are as follows:

[0025] Impeller body 100, upper disc 110, second fitting hole 111, wire slot 112, boss 113, third fitting hole 114, mounting groove 115, lower disc 120, mounting hole 121, single-arc blade 130, first hot melt column 131, groove 132;

[0026] Impeller seat 200, base 210, first fitting hole 211, three-dimensional twisted blade 220, second hot melt column 221, third hot melt column 222, mounting wall 230, tooth gap 231, round hole 232. DETAILED DESCRIPTION

[0027] Embodiments of the present application are described below in detail, examples of which are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the embodiments of the present application, and cannot be understood as a limitation of the present application.

[0028] In the description of the embodiments of the present application, it should be understood that the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the embodiments of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0029] In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the embodiments of the present application, the meaning of "multiple" is two or more, unless otherwise explicitly specified and limited.

[0030] In the embodiments of the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, can be fixedly connected, or can be detachably connected, or can be integrated; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium; can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0031] As Figures 1 to 8As shown, the present application provides a water pump, comprising a pump body (not shown in the figure), an impeller body 100 and an impeller seat 200.

[0032] Wherein, the inside of the pump body has a cavity, the impeller body 100 is installed in the cavity of the pump body, the impeller body 100 comprises an upper disc 110, a lower disc 120 and a plurality of single circular arc blades 130, the plurality of single circular arc blades 130 are arranged along the circumference and located between the upper disc 110 and the lower disc 120, the lower disc 120 penetrates through a mounting hole 121, the impeller seat 200 comprises a base 210 and a plurality of three-dimensional twisted blades 220 arranged along the circumference on the base 210, the base 210 is in butt joint with the mounting hole 121, the inner diameter of the mounting hole 121 is adapted to the outer diameter of the base 210, the plurality of three-dimensional twisted blades 220 correspond to the plurality of single circular arc blades 130 one by one, the curvature of the single circular arc blade 130 is different from that of the three-dimensional twisted blade 220, the corresponding single circular arc blade 130 and the three-dimensional twisted blade 220 are jointly spliced into an impeller blade, and the plurality of impeller blades and the inner wall of the cavity jointly enclose a plurality of closed chambers for pumping. The whole after splicing of the impeller body 100 and the impeller seat 200 can be called an impeller.

[0033] It can be understood that the plurality of single circular arc blades 130 correspond to the plurality of three-dimensional twisted blades 220 one by one and are jointly spliced into an impeller blade, and such spliced blade structure has unique advantages, on the one hand, according to the principle of fluid dynamics, a more reasonable blade shape and twist angle can be designed, so that the impeller can better adapt to the flow characteristics of the fluid during operation, improve the fluid conveying efficiency and reduce energy loss; on the other hand, the impeller is divided into two parts for injection molding, and the two parts can be spliced into one after separate injection molding, and the mold only needs two flow channel sliders to complete the injection molding of the blade, which simplifies the mold structure, improves the mold forming efficiency and reduces the processing cost.

[0034] As shown in the figure, the present application provides a water pump, comprising a pump body (not shown in the figure), an impeller body 100 and an impeller seat 200. Figures 1 to 4 and Figure 7As shown in the embodiment of the present application, the upper disc 110 and the lower disc 120 are arranged in parallel, and the single circular-arc blade 130 is arranged perpendicularly to the upper disc 110 and the lower disc 120, wherein the single circular-arc blade 130 and the three-dimensional twisted blade 220 are smoothly connected at the joint position, that is, the three-dimensional twisted blade 220 extends along the curvature of the single circular-arc blade 130 and has a certain twist angle. Through the above structure, the impeller blade formed by the joint of the single circular-arc blade 130 and the three-dimensional twisted blade 220 has double curvature, which improves the operation efficiency of the water pump. Specifically, the single circular-arc blade 130 and the three-dimensional twisted blade 220 are each provided with six pieces, which can ensure that the impeller has sufficient strength and rigidity to meet the performance requirements of the water pump, avoid the problems of a large increase in manufacturing cost and possible liquid flow disorder caused by too many blades, achieve a good balance between performance and cost, and have high economic efficiency and practicality.

[0035] As shown in the embodiment of the present application, Figure 4 and Figure 5 As shown in the embodiment of the present application, the single circular-arc blade 130 is provided with a first hot-melt column 131 protruding downward, the base 210 is provided with a first matching hole 211 corresponding to the position of the first hot-melt column 131, the first hot-melt column 131 is inserted and matched with the first matching hole 211, the three-dimensional twisted blade 220 is provided with a second hot-melt column 221 protruding upward, and the upper disc 110 is provided with a second matching hole 111 corresponding to the position of the second hot-melt column 221. The single circular-arc blade 130 and the three-dimensional twisted blade 220 are positioned by the hot-melt column structure arranged on each other, and the impeller body 100 and the impeller base 200 are connected by hot riveting through the first hot-melt column 131 and the second hot-melt column 221, without the need for fasteners, which can improve the assembly efficiency and strengthen the reliability of the connection between the impeller body 100 and the impeller base 200. Compared with the traditional bolt connection method, the hot riveting connection method is more convenient and fast to operate, does not require additional fasteners, reduces the assembly steps and assembly time, reduces the labor cost and assembly error rate, and improves the production efficiency and product quality. The first hot-melt column 131 and the second hot-melt column 221 can each be provided with six pieces.

[0036] As shown in the embodiment of the present application, Figure 4 and Figure 5As shown, in one embodiment of the present invention, a groove 132 is provided at one end of the single arc blade 130 near the three-dimensional twisted blade 220. The groove 132 extends in the vertical direction. A third heat-seal post 222 is provided at one end of the three-dimensional twisted blade 220 near the single arc blade 130. The third heat-seal post 222 extends in the vertical direction and is positioned within the groove 132. A third mating hole 114 is provided at a position on the upper disc 110 corresponding to the third heat-seal post 222. The third heat-seal post 222 engages with the third mating hole 114. The mating engagement of the third heat-seal post 222 and the third mating hole 114 at the blade joint allows for rapid positioning of the impeller body 100 and the impeller seat 200 relative to each other, facilitates quick and accurate docking of the single arc blade 130 and the three-dimensional twisted blade 220, and effectively prevents displacement or deformation of the blades when subjected to force. It is understood that the impeller body 100 and the impeller seat 200 can be connected by heat riveting via the third heat stake 222, further enhancing the connection reliability between the impeller body 100 and the impeller seat 200. Furthermore, the shape of the groove 132 includes, but is not limited to, an arcuate groove, a square groove, a dovetail groove, or an Ω-shaped groove, and the number of the third heat stake 222 can be six.

[0037] like Figure 4 As shown, in one embodiment of the present invention, a wire groove 112 is provided on the bottom surface of the upper disc 110, and the wire groove 112 continues the curvature of the single arc blade 130. The three-dimensional twisted blade 220 is clamped in the wire groove 112 to facilitate positioning of the three-dimensional twisted blade 220.

[0038] like Figure 3 and Figure 7 As shown, in one embodiment of the present invention, a boss 113 is provided on the top surface of the upper disc 110, and a mounting groove 115 is provided in the boss 113. The mounting groove 115 is used to accommodate the impeller ring. The impeller ring can facilitate the positioning of the impeller when it is installed inside the water pump, effectively preventing the impeller from moving in the axial direction, ensuring that the impeller always remains in the correct position during rotation, avoiding problems such as pump body wear and liquid leakage caused by axial displacement of the impeller, and improving the sealing and operational stability of the water pump. The second mating hole 111 is located on the inner side of the boss 113, and the third mating hole 114 is located on the outer side of the boss 113.

[0039] like Figure 6 and Figure 7As shown, in one embodiment of the present invention, the bottom surface of the base 210 is provided with an annular mounting wall 230 protruding downward, and the inner wall of the mounting wall 230 is provided with a plurality of teeth 231 in the vertical direction. The teeth 231 are used to cooperate with the internal magnet in the pump body. The internal magnetic structure can drive the impeller body 100 and the impeller seat 200 to rotate as a whole by cooperating with the teeth 231, thereby realizing the magnetic drive connection of the water pump. This magnetic drive method has the advantages of no contact, no wear, and good sealing. It can effectively prevent liquid leakage, improve the safety and reliability of the water pump, and is also conducive to the remote control and automatic operation of the water pump.

[0040] like Figure 6 and Figure 7 As shown, in one embodiment of the present invention, the mounting wall 230 is penetrated by a plurality of circular holes 232 along its radial direction. The circular holes 232 are used for inserting bolts to connect with the magnetic drive part of the water pump, which simplifies the connection structure and assembly process, reduces the assembly difficulty and cost, and also facilitates the disassembly and maintenance of the magnetic drive part when necessary, thereby improving the maintainability of the water pump.

[0041] The above is a further detailed description of the present invention in conjunction with specific preferred embodiments, and the specific implementation of the present invention should not be considered to be limited to these descriptions. For those skilled in the art of the present invention, without departing from the concept of the present invention, its architecture can be flexible and varied, and a series of products can be derived. Simply making a few simple deductions or substitutions should be considered to fall within the scope of patent protection of the present invention as determined by the submitted claims.

Claims

1. A water pump, characterized in that: include: a pump body having a cavity therein; An impeller body is installed in the cavity of the pump body, the impeller body comprising an upper disc, a lower disc, and a plurality of single arc blades, the plurality of single arc blades are arranged along a circumference and located between the upper disc and the lower disc, and the lower disc is penetrated by a mounting hole; An impeller seat, the impeller seat comprising a base and a plurality of three-dimensional twisted blades circumferentially arrayed on the base, the base docking with the mounting hole, the plurality of three-dimensional twisted blades corresponding one-to-one to the plurality of single arc blades, the single arc blades and the three-dimensional twisted blades having different curvatures, the corresponding single arc blades and the three-dimensional twisted blades being assembled together to form impeller blades, the plurality of impeller blades and the inner wall of the cavity together enclosing a plurality of closed chambers for pumping; The single arc blade is provided with a groove at one end close to the three-dimensional twisted blade, and the groove extends in a vertical direction. The three-dimensional twisted blade is provided with a third hot melt column at one end close to the single arc blade, and the third hot melt column extends in a vertical direction and is placed in the groove. The upper disc is provided with a third matching hole at a position corresponding to the third hot melt column, and the third hot melt column is plugged into the third matching hole. The impeller body and the impeller seat are hot-riveted to each other through the third hot melt column.

2. The water pump according to claim 1, characterized in that The upper circular piece is arranged in parallel with the lower circular piece, the single circular blade is arranged perpendicular to both the upper circular piece and the lower circular piece, and the single circular blade and the three-dimensional twisted blade have a smooth transition at the position where they are spliced ​​together.

3. The water pump according to claim 1, characterized in that There are six single arc blades and six three-dimensional twisted blades.

4. The water pump according to claim 1, characterized in that The single arc blade is provided with a first heat-melt column protruding downward, and the base is provided with a first matching hole at a position corresponding to the first heat-melt column, and the first heat-melt column is plugged into the first matching hole. The three-dimensional twisted blade is provided with a second heat-melt column protruding upward, and the upper disc is provided with a second matching hole at a position corresponding to the second heat-melt column, and the second heat-melt column is plugged into the second matching hole. The impeller body and the impeller seat are connected to each other by thermal rivets through the first heat-melt column and the second heat-melt column.

5. The water pump according to claim 4, characterized in that A boss is protruding upward from the top surface of the upper disc, and a mounting groove is provided in the boss for accommodating an impeller rotating ring.

6. The water pump according to claim 5, characterized in that The second matching hole is located on the inner side of the boss, and the third matching hole is located on the outer side of the boss.

7. The water pump according to claim 1, characterized in that A wire groove is provided on the bottom surface of the upper disc. The wire groove continues the curvature of the single arc blade, and the three-dimensional twisted blade is clamped in the wire groove.

8. The water pump according to claim 1, characterized in that The bottom surface of the base is provided with an annular mounting wall protruding downward, and the inner wall of the mounting wall is provided with a plurality of teeth along the vertical direction, and the teeth are used to cooperate with the internal magnet.

9. The water pump according to claim 8, characterized in that The installation wall is penetrated by a plurality of circular holes along its radial direction, and the circular holes are used for inserting bolts to connect with the magnetic drive part of the water pump.

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