A washing pump impeller and a washing pump driving device

Abstract

The utility model provides a washing pump impeller and a washing pump driving device, wherein the rotating shaft of the washing pump impeller comprises an upper end and a lower end of the rotating shaft, and the upper end of the rotating shaft is close to the water inlet of a water containing chamber, a wheel disc is connected to the rotating shaft, a plurality of blades are arranged on the wheel disc, and the blade roots of the blades are close to the water inlet of the water containing chamber, when the washing pump impeller rotates, it is convenient to extract washing water, so that the water supply in the water containing chamber is kept stable, and further provides conditions for the nozzle to spray water with higher pressure; the size of the blade tip matches the size of the nozzle, so that the water extracted by the blade root enters the nozzle through the centrifugal action of the blade tip, thereby reducing the situation that the water driven by the blade tip is turned back due to impacting the side wall of the water containing chamber, and improving the water pressure sprayed by the nozzle; the washing pump driving device comprises a washing pump impeller, a motor and a sealing structure, the sealing structure is used for waterproofing the motor, so that the washing water with higher water pressure can be sprayed when the motor drives the washing pump impeller.

Description

Technical Field

[0001] The utility model relates to an automobile washing pump, in particular to a washing pump impeller and a washing pump driving device. Background Art

[0002] The washing pump equipped on the car is mainly used for cleaning the windshield, headlights or laser radar; the washing pump driving device is arranged in the washing pump, and the washing pump impeller at the end of the washing pump driving device is arranged in the water containing chamber in the washing pump. When the washing pump is needed to spray water, the washing pump impeller rotates to draw water out of the water containing chamber and spray it from a nozzle connected to the water containing chamber.

[0003] A Chinese invention patent for a bidirectional high-pressure washing pump (CN117108520B) discloses an impeller and a driving device, wherein the impeller is composed of a rotating shaft and three blades arranged on the rotating shaft, and the height of the blades from the root to the tip is consistent with the rotating shaft. This arrangement will weaken the water pumping effect of the impeller from the water chamber, and when the size of the blade tip does not match the size of the nozzle, part of the water flow driven by the blade tip will hit the side wall of the water chamber and return, resulting in a decrease in the water pressure sprayed from the nozzle. Utility Model Content

[0004] The problem to be solved by the utility model is to provide a washing pump impeller with better water pumping effect and greater water spraying pressure and a washing pump driving device with the washing pump impeller.

[0005] The utility model solves the above problems by adopting the following technical solution: a washing pump impeller, comprising

[0006] A rotating shaft, wherein the rotating shaft comprises an upper end of the rotating shaft close to the water inlet of the water containing chamber and a lower end of the rotating shaft away from the water inlet of the water containing chamber;

[0007] a wheel disc, wherein the wheel disc is arranged to be connected to the outer wall of the rotating shaft; and

[0008] A plurality of blades, wherein the blades are arranged on the wheel disc; the blades include a blade root and a blade tip; the blade root is arranged close to the upper end of the rotating shaft so as to be close to the water inlet of the water containing chamber; the blade tip is arranged close to the lower end of the rotating shaft and corresponds to the position of the nozzle; the size of the blade tip matches the size of the nozzle so as to drive water to spray out from the nozzle.

[0009] Compared with the prior art, the rotating shaft of the utility model comprises an upper end and a lower end of the rotating shaft, and the upper end of the rotating shaft is close to the water inlet of the water containing chamber, the wheel is connected to the rotating shaft, and a plurality of blades are arranged on the wheel, and the root of the blade is close to the water inlet of the water containing chamber. When the impeller of the washing pump rotates, the root of the blade closer to the water inlet of the water containing chamber is more likely to draw washing water from the water inlet, so that the water supply in the water containing chamber remains stable, thereby providing conditions for the nozzle to spray water with higher pressure; the size of the blade tip matches the size of the nozzle, so that the water drawn by the blade root enters the nozzle through the centrifugal action of the blade tip, thereby reducing the situation where the water driven by the blade tip is turned back due to hitting the side wall of the water containing chamber, and improving the water pressure sprayed by the nozzle.

[0010] The utility model provides a washing pump impeller, wherein the blade root is arranged to be connected with the side wall of the rotating shaft; and the blade is arranged to bend from the blade root to the blade tip.

[0011] The utility model discloses a washing pump impeller, wherein the blade has a fixed surface; the fixed surface is arranged to be fixedly connected with the upper end surface of the wheel disc.

[0012] The utility model provides a washing pump impeller, wherein the wheel disc comprises an inner edge and an outer edge; the inner edge is arranged to be connected with the outer wall of the rotating shaft.

[0013] The utility model provides a washing pump impeller, wherein the inner edge is arranged close to the upper end of the rotating shaft, and the outer edge is arranged close to the lower end of the rotating shaft, so that the inner edge and the outer edge form an upper end surface bent from top to bottom; and the fixing surface is in contact with the upper end surface.

[0014] The utility model provides a washing pump impeller, wherein the inner edge is arranged to be at the same height as the outer edge, so that the inner edge and the outer edge form a horizontal upper end surface, and the fixing surface is in contact with the upper end surface.

[0015] The utility model provides a washing pump impeller, wherein the height of the impeller tip is less than or equal to the diameter of the nozzle.

[0016] A washing pump driving device, comprising the aforementioned washing pump impeller, further comprising:

[0017] A motor, wherein the motor comprises a motor body and an output shaft disposed at an upper end of the motor body; and

[0018] A sealing structure is provided at the upper end of the motor body to prevent water in the water containing cavity from contacting the motor body; the output shaft is arranged to extend from the sealing structure.

[0019] The utility model provides a washing pump driving device, wherein the motor body is arranged in a housing of the washing pump, and the sealing structure comprises at least one sealing ring arranged on a side wall; the sealing ring is arranged to abut against the inner wall of the housing of the washing pump.

[0020] The utility model provides a washing pump driving device, wherein the output shaft is arranged to be inserted into the rotating shaft from the lower end of the rotating shaft so as to drive the rotating shaft to rotate. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a cross-sectional schematic diagram of an embodiment of the impeller of the washing pump of the utility model;

[0022] Figure 2 It is a three-dimensional schematic diagram of an embodiment of the impeller of the washing pump of the utility model;

[0023] Figure 3 It is a cross-sectional schematic diagram of another embodiment of the impeller of the washing pump of the utility model;

[0024] Figure 4 This is a schematic diagram of the position of the impeller of the washing pump of the utility model in the water-containing chamber of the washing pump;

[0025] Figure 5 It is a schematic diagram of the water flow direction when the impeller of the washing pump of the utility model works in the water storage chamber of the washing pump;

[0026] Figure 6 It is a three-dimensional schematic diagram of the washing pump driving device of the utility model;

[0027] Figure 7 It is a cross-sectional schematic diagram of the washing pump driving device of the utility model. DETAILED DESCRIPTION

[0028] Before describing in detail any embodiment of the utility model, it should be understood that the utility model is not limited in its application to the construction and arrangement details of the components described below or illustrated in the following figures. The utility model can have other embodiments and can be practiced or carried out in various ways. In addition, it should be understood that the words and terms used here are for descriptive purposes and should not be considered restrictive. The use of "including" or "having" and its variations herein is intended to cover the items and their equivalents and additional items displayed below. Unless otherwise specified or limited, the terms "install", "connect", "support" and "couple" and their variations are widely used and cover direct installation and indirect installation, connection, support and connection. In addition, "connect" and "couple" are not limited to physical or mechanical connections or connections.

[0029] Furthermore, on the first aspect, in the disclosure of the present invention, the terms "longitudinal", "transverse", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore the above terms cannot be understood as limitations on the present invention; on the second aspect, the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" cannot be understood as a limitation on the quantity.

[0030] It should be understood by those skilled in the art that the embodiments of the present invention described above and shown in the accompanying drawings are only examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functions and structural principles of the present invention have been demonstrated and explained in the embodiments, and the embodiments of the present invention may be deformed or modified in any way without departing from the principles.

[0031] The embodiments of the present utility model are further described below in conjunction with the accompanying drawings.

[0032] See also Figure 1-7 The impeller of a washing pump shown in the figure comprises a rotating shaft 1, a wheel disc 2 and a plurality of blades 3; wherein the rotating shaft 1 comprises an upper end 11 of the rotating shaft close to the water inlet of the water containing chamber and a lower end 12 of the rotating shaft away from the water inlet of the water containing chamber; wherein the wheel disc 2 is arranged to be connected to the outer wall of the rotating shaft 1; wherein the blade 3 is arranged on the wheel disc 2; the blade 3 comprises a blade root 31 and a blade tip 32; the blade root 31 is arranged to be close to the upper end 11 of the rotating shaft so as to be close to the water inlet of the water containing chamber; the blade tip 32 is arranged to be close to the lower end 12 of the rotating shaft and corresponds to the position of the nozzle; the size of the blade tip 32 matches the size of the nozzle so as to drive water to spray out from the nozzle.

[0033] In actual use, the rotating shaft 1 of the utility model includes an upper end 11 and a lower end 12 of the rotating shaft, and the upper end 11 of the rotating shaft is close to the water inlet of the water containing chamber, the wheel disc 2 is connected to the rotating shaft 1, and multiple blades 3 are arranged on the wheel disc 2, and the blade root 31 of the blade 3 is close to the water inlet of the water containing chamber. When the impeller of the washing pump rotates, the blade root 31 closer to the water inlet of the water containing chamber is more likely to extract washing water from the water inlet, so that the water supply in the water containing chamber remains stable, thereby providing conditions for the nozzle to spray water with higher pressure; the size of the blade tip 32 matches the size of the nozzle, so that the water extracted by the blade root 31 enters the nozzle through the centrifugal action of the blade tip 32, thereby reducing the situation where the water driven by the blade tip 32 is turned back due to hitting the side wall of the water containing chamber, and improving the water pressure sprayed by the nozzle.

[0034] Please continue reading Figure 1 Figure 2 , wherein the blade root 31 is configured to be connected to the side wall of the rotating shaft 1; the blade 3 is configured to bend from the blade root 31 to the blade tip 32, and the bending direction is consistent with the rotation direction of the impeller, so as to cooperate with the centrifugal force in the rotation direction to throw more washing water from the blade tip 32, which is conducive to increasing the water spraying pressure.

[0035] Please continue reading Figure 1 , Figure 2 The blade 3 has a fixing surface 33; the fixing surface 33 is configured to be fixedly connected to the upper end surface of the wheel disc 2. Through the setting of the fixing surface 33, the blade 3 is fixed on both the side and bottom surfaces so as to maintain stability at a higher rotation speed and reduce the probability of blade damage.

[0036] Please continue reading Figure 3 , Figure 4 , wherein the wheel disc 2 includes an inner edge 21 and an outer edge 22 ; the inner edge 21 is configured to be connected to the outer wall of the rotating shaft 1 .

[0037] Please read further Figure 4 In some embodiments, the inner edge 21 is arranged close to the upper end 11 of the rotating shaft, and the outer edge 22 is arranged close to the lower end 12 of the rotating shaft, so that the inner edge 21 and the outer edge 22 form an upper end surface that bends from top to bottom; the fixing surface 33 is in contact with the upper end surface.

[0038] Under this arrangement, since the blade 3 is arranged close to the upper end surface of the wheel disc 2, a height difference can be formed between the blade root 31 and the blade tip 32, wherein the height of the blade root 31 is designed to be close to the water inlet of the water containing chamber to facilitate water pumping from the water inlet, and the height of the blade tip 32 is designed to match the size of the nozzle to reduce the situation where the water driven by the blade tip 32 hits the inner wall of the water containing chamber and is reflected, thereby increasing the water pressure of the water spray.

[0039] Please read further Figure 3 In other embodiments, the inner edge 21 is set to be at the same height as the outer edge 22, so that the inner edge 21 and the outer edge 22 form a horizontal upper end surface, and the fixing surface 33 is in contact with the upper end surface.

[0040] In this arrangement, since the blade 3 is arranged close to the upper end surface of the wheel disc 2, the fixing surface 33 is also at the same height from the blade root 31 to the blade tip 32, that is, the bottom of the blade root 31 and the bottom of the blade tip 32 are flat. Furthermore, by designing the size of the top of the blade root 31 and the top of the blade tip 32, the height of the blade root 31 can also be adapted to the water inlet of the water containing cavity, and the height of the blade tip 32 can be adapted to the size of the nozzle.

[0041] Furthermore, when the height of the blade tip 32 is less than or equal to the diameter of the nozzle, the water driven by the blade tip 32 can be effectively reduced from hitting the inner wall of the water chamber and returning, thereby increasing the water pressure of the spray water.

[0042] Please continue reading Figure 5 During operation, the washing water is mainly sucked in from the water inlet of the water containing chamber under the action of the blade root 31, and is sprayed out from the drain outlet of the water containing chamber along the arc from the blade root 31 to the blade tip 32 under the action of the blade tip 32.

[0043] Please continue reading Figure 6 , Figure 7 A washing pump driving device is shown, which includes the aforementioned washing pump impeller, and also includes a motor 4 and a sealing structure 5; wherein the motor 4 includes a motor body 41 and an output shaft 42 arranged at the upper end of the motor body 41; wherein the sealing structure 5 is arranged at the upper end of the motor body 41 to prevent water in the water containing cavity from contacting the motor body 41; the output shaft 42 is arranged to extend from the sealing structure 5; the motor body 41 is arranged in the housing of the washing pump, and the sealing structure 5 includes at least one sealing ring 51 arranged on the side wall; the sealing ring 51 is arranged to abut against the inner wall of the housing of the washing pump; the output shaft 42 is arranged to be inserted into the rotating shaft 1 from the lower end 12 of the rotating shaft so as to drive the rotating shaft 1 to rotate.

[0044] Through the structural design of the washing pump driving device, the motor body 41 can obtain a well-sealed working environment, so that the motor body 41 can stably drive the washing pump impeller to work through the output shaft 42, thereby providing a guarantee for the nozzle to spray washing water at a higher pressure.

[0045] The above description is only for the best embodiment of the utility model, but it cannot be understood as a limitation of the claims. The utility model is not limited to the above embodiments, and its specific structure is allowed to be changed. All changes made within the protection scope of the independent claims of the utility model are within the protection scope of the utility model.

Claims

1. A washing pump impeller, characterized in that: include: A rotating shaft (1), wherein the rotating shaft (1) comprises an upper rotating shaft end (11) close to a water inlet of the water containing chamber and a lower rotating shaft end (12) away from the water inlet of the water containing chamber; a wheel disc (2), wherein the wheel disc (2) is arranged to be connected to the outer wall of the rotating shaft (1); and A plurality of blades (3), wherein the blades (3) are arranged on the wheel disc (2); the blades (3) include a blade root (31) and a blade tip (32); the blade root (31) is arranged close to the upper end (11) of the rotating shaft so as to be close to the water inlet of the water containing chamber; the blade tip (32) is arranged close to the lower end (12) of the rotating shaft and corresponds to the position of the nozzle; the size of the blade tip (32) matches the size of the nozzle so as to drive water to spray out from the nozzle.

2. The washing pump impeller according to claim 1, characterized in that: The blade root portion (31) is configured to be connected to the side wall of the rotating shaft (1); and the blade (3) is configured to bend from the blade root portion (31) to the blade tip portion (32).

3. The washing pump impeller according to claim 2, characterized in that: The blade (3) has a fixing surface (33); the fixing surface (33) is arranged to be fixedly connected to the upper end surface of the wheel disc (2).

4. The washing pump impeller according to claim 3, characterized in that: The wheel disc (2) comprises an inner edge (21) and an outer edge (22); the inner edge (21) is arranged to be connected to the outer wall of the rotating shaft (1).

5. The washing pump impeller according to claim 4, characterized in that: The inner edge (21) is arranged to be close to the upper end (11) of the rotating shaft, and the outer edge (22) is arranged to be close to the lower end (12) of the rotating shaft, so that the inner edge (21) and the outer edge (22) form an upper end surface that bends from top to bottom; and the fixing surface (33) is in contact with the upper end surface.

6. The washing pump impeller according to claim 4, characterized in that: The inner edge (21) is arranged to be at the same height as the outer edge (22), so that the inner edge (21) and the outer edge (22) form a horizontal upper end surface, and the fixing surface (33) is in contact with the upper end surface.

7. The washing pump impeller according to claim 1, characterized in that: The height of the blade tip (32) is less than or equal to the diameter of the nozzle.

8. A washing pump driving device, comprising a washing pump impeller according to any one of claims 1 to 7, characterized in that: include: A motor (4), wherein the motor (4) comprises a motor body (41) and an output shaft (42) arranged at the upper end of the motor body (41); and A sealing structure (5), wherein the sealing structure (5) is arranged at the upper end of the motor body (41) to prevent water in the water containing chamber from contacting the motor body (41); and the output shaft (42) is arranged to extend from the sealing structure (5).

9. The washing pump driving device according to claim 8, characterized in that: The motor body (41) is arranged in a housing of the washing pump, and the sealing structure (5) comprises at least one sealing ring (51) arranged on a side wall; the sealing ring (51) is arranged to abut against an inner wall of the housing of the washing pump.

10. The washing pump driving device according to claim 8, characterized in that: The output shaft (42) is arranged to be inserted into the rotating shaft (1) from the lower end (12) of the rotating shaft so as to drive the rotating shaft (1) to rotate.

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