Water pump conveying semi-open type impeller

Abstract

The utility model relates to an impeller of a water pump, in particular to a water pump conveying semi-open type impeller which comprises a wheel disc, a conical part is arranged in the middle of the upper surface of the wheel disc, the conical part is divided into a narrow end and a wide end according to the structure, and a drum-shaped part is arranged at the narrow end. First blade pieces are arranged on the wheel disc, second blade pieces are arranged on the side wall of the conical piece and the side wall of the drum-shaped piece, and one end of each first blade piece is located in the center of the distance between the two second blade pieces. The structure of the blade is optimally designed, so that the quality and streamline design of the blade are improved, and blade collapse caused by high-speed flowing underwater in the actual operation process is avoided.

Description

Technical Field

[0001] The utility model relates to an impeller of a water pump, in particular to a semi-open impeller for conveying water pumps. Background Art

[0002] The impeller is an important executive unit of the water pump to achieve water pumping and transportation, and the design of the semi-open impeller gives it a larger flow channel and fewer blades, so it can effectively handle sewage and wastewater containing a certain amount of particulate impurities and is not prone to clogging.

[0003] Refer to Chinese patent publication number CN103277335A, which discloses a semi-open impeller supercharging structure.

[0004] In the prior art including the above patents, due to the large mass of the impeller, its structural strength is poor, its moment of inertia is large, and its dynamic response capability is also poor. Utility Model Content

[0005] The purpose of the utility model is to provide a water pump conveying semi-open impeller to solve the above problems.

[0006] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0007] A water pump conveying semi-open impeller wheel disc, wherein a tapered part is centrally provided on the upper surface of the wheel disc, and the tapered part is divided into a narrow end and a wide end according to the structure, and a drum-shaped part is provided on the narrow end;

[0008] The wheel disc is provided with a first blade member;

[0009] The side walls of the conical member and the drum-shaped member are provided with second blade members, and one end of each of the first blade members is located at the center of the distance between two of the second blade members.

[0010] Preferably, the connection between the wheel disc and the tapered member is an inner arc structure.

[0011] Preferably, the first blade member is divided into a first arc-shaped portion and a second arc-shaped portion according to the structure, the inner sides of the first arc-shaped portion and the second arc-shaped portion are arranged in opposite directions, and the inner side of the first arc-shaped portion is arranged to face the rotation direction of the wheel disc.

[0012] Preferably, the second blade is divided into a horizontal portion and a third arc-shaped portion according to its structure, and the outer arc top of the third arc-shaped portion faces the rotation direction of the wheel disc.

[0013] Preferably, the minimum angle of the second blade member with respect to the vertical horizontal plane is 45°-50°.

[0014] In the above technical solution, the utility model provides a water pump conveying semi-open impeller, which has the following beneficial effects: the structure of the blade is optimized, thereby increasing the mass and streamline design of the blade, avoiding the collapse of the blade caused by high-speed flowing water during actual operation, and also solving the problem of poor dynamic response capability. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0016] Figure 1 A schematic diagram of the overall structure provided for an embodiment of the present utility model;

[0017] Figure 2 This is a schematic diagram of the top structure provided by an embodiment of the utility model.

[0018] Description of reference numerals:

[0019] 1. Wheel disc; 2. Conical member; 3. Drum member; 4. First blade member; 41. First arc-shaped portion; 42. Second arc-shaped portion; 5. Second blade member; 51. Horizontal portion; 52. Third arc-shaped portion. DETAILED DESCRIPTION

[0020] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0021] like Figure 1-2 As shown, a water pump conveying semi-open impeller includes a wheel disc 1, a cone 2 is arranged in the center of the upper surface of the wheel disc 1, and the cone 2 is divided into a narrow end and a wide end according to the structure, and a drum 3 is arranged on the narrow end. Figure 1 It can be seen that the wheel disc 1, the conical part 2 and the drum part 3 in the embodiment are centrally provided with a mounting hole for the output shaft of the power supply motor to pass through, and the entire impeller is produced by a casting process, and the surface burrs are removed by a sandblasting process.

[0022] Further, combined Figure 1 It can be seen that a first blade member 4 is provided on the wheel disc 1, and the first blade member 4 is divided into a first arc-shaped portion 41 and a second arc-shaped portion 42 according to the structure. The inner arcs of the first arc-shaped portion 41 and the second arc-shaped portion 42 are set in opposite directions, and the inner arc of the first arc-shaped portion 41 is set in the direction of rotation of the wheel disc 1.

[0023] Furthermore, combined Figure 2It can be seen that the sidewalls of the conical member 2 and the drum member 3 are provided with second vane members 5, one end of each first vane member 4 is arranged at the center of the interval between two second vane members 5. And the second vane members 5 are divided into horizontal parts 51 and third arc-shaped parts 52 according to the structure, and the outer arc top of the third arc-shaped part 52 faces the rotation direction of the wheel disc 1.

[0024] Secondly, the minimum angle of the second vane member 5 with the vertical horizontal plane is 45°-50°

[0025] It should be noted that the connection between the wheel disc 1 and the conical member 2 in the above embodiment is an inner arc-shaped structure.

[0026] The above only describes some exemplary embodiments of the present application by way of illustration, without doubt, for ordinary skilled in the art, without departing from the spirit and scope of the present application, the described embodiments can be modified in various ways. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the present application.

Claims

1. A water pump with a semi-open impeller, characterized in that: The wheel disc (1) comprises a conical member (2) arranged in the center of the upper surface of the wheel disc (1); the conical member (2) is divided into a narrow end and a wide end according to the structure; and a drum-shaped member (3) is arranged on the narrow end; The wheel disc (1) is provided with a first blade member (4); The side walls of the conical member (2) and the drum-shaped member (3) are provided with second blade members (5), and one end of each of the first blade members (4) is located at the center of the distance between two of the second blade members (5).

2. A water pump delivery semi-open impeller according to claim 1, characterized in that: The connection between the wheel disc (1) and the conical member (2) is an inner arc structure.

3. A water pump delivery semi-open impeller according to claim 1, characterized in that: The first blade member (4) is divided into a first arc-shaped portion (41) and a second arc-shaped portion (42) according to its structure. The inner arcs of the first arc-shaped portion (41) and the second arc-shaped portion (42) are oriented in opposite directions, and the inner arc of the first arc-shaped portion (41) is oriented in the direction of rotation of the wheel disc (1).

4. A water pump delivery semi-open impeller according to claim 1, characterized in that: The second blade member (5) is divided into a horizontal portion (51) and a third arc portion (52) according to the structure, and the outer arc top of the third arc portion (52) faces the rotation direction of the wheel disc (1).

5. The water pump delivery semi-open impeller according to claim 1, characterized in that: The minimum included angle of the second blade member (5) with respect to the vertical horizontal plane is 45°-50°.

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