Water pump volute

Abstract

The utility model provides a water pump volute which solves the problem that an existing volute is unstable in positioning. The water pump volute comprises a volute body with a water inlet and a water outlet, an impeller cavity communicated with the water inlet is formed in the volute body, positioning plates are integrally formed on the two sides of the outer wall of the impeller cavity, the length of the positioning plates extends in the radial direction of the impeller cavity, and the two positioning plates are symmetrically distributed along the central axis of the impeller cavity; the thickness extending direction of the positioning plate is perpendicular to the axial direction of the impeller cavity, a first reinforcing rib is formed between the thickness side of the positioning plate and the volute body, and a second reinforcing rib is formed between the other thickness side of the positioning plate and the volute body. Bolt holes are formed in the ends, away from each other, of the two positioning plates in the thickness direction of the positioning plates in a penetrating mode. The water pump volute is stable in positioning.

Description

Technical Field

[0001] The utility model relates to a water pump, in particular to a volute of a water pump. Background Art

[0002] The working principle of a centrifugal pump is to transport liquid by relying on the centrifugal force generated by the rotation of the impeller.

[0003] The volute is an important component of the centrifugal pump. Its structure is as shown in a high-sealing volute centrifugal pump casing disclosed in the China Patent Library (application number: 201922398365.5), which includes a centrifugal pump casing body, an impeller fixedly installed inside the centrifugal pump casing body, and a connecting cylinder fixedly embedded in the middle of one side wall of the centrifugal pump casing body; the bottoms on both sides of the centrifugal pump casing body are rotatably connected to support plates by mounting screws, and a mounting plate is fixedly connected between the two opposing support plates, and the tops of the two mounting plates are fixedly connected to elastic blocks.

[0004] In the above-mentioned centrifugal pump casing, the support plate used to position the casing is connected to the centrifugal pump casing body through mounting screws. Since the thickness of the centrifugal pump casing body is generally thin in actual products, the thickness of the mounting screws is affected, which in turn affects the positioning and working stability of the entire centrifugal pump. Utility Model Content

[0005] The purpose of the utility model is to solve the above problems in the existing technology and to provide a water pump volute with stable installation.

[0006] The purpose of the utility model can be achieved through the following technical solutions: a water pump volute, comprising a volute body with a water inlet and a water outlet, an impeller cavity connected to the water inlet formed in the volute body, characterized in that positioning plates are integrally formed on both sides of the outer wall of the impeller cavity, the length of the positioning plate extends radially along the impeller cavity, and the two positioning plates are symmetrically distributed along the central axis of the impeller cavity; the thickness extension direction of the positioning plate is perpendicular to the axial direction of the impeller cavity, a reinforcing rib is formed between one side of the thickness of the positioning plate and the volute body, and a reinforcing rib is formed between the other side of the thickness of the positioning plate and the volute body; bolt holes are penetrated at the ends of the two positioning plates away from each other along the thickness direction of the positioning plates.

[0007] During actual installation, the volute is positioned by using the bolt holes and bolts.

[0008] Two positioning plates are integrally formed on the outer wall of the impeller cavity, and the thickness sides of the two positioning plates are connected to the volute body through reinforcing ribs one and two respectively, which can effectively ensure the overall strength and positioning stability of the positioning plates, thereby firmly positioning the volute.

[0009] In the above-mentioned water pump volute, one end of the above-mentioned reinforcing ribs 1 and 2 extends to the outer wall of the impeller chamber, and the other end of the reinforcing ribs 1 and 2 extends to the corresponding positioning plates, so that the positioning plates are more stably positioned.

[0010] In the above-mentioned water pump volute, among the reinforcement ribs 1 and 2 connected to the same positioning plate, the connection position of the reinforcement rib 1 and the positioning plate and the connection position of the reinforcement rib 2 and the positioning plate are distributed along the length direction of the positioning plate to further enhance the strength and positioning stability of the positioning plate.

[0011] In the aforementioned water pump volute, a plastic tube is installed in each bolt hole, with one end of the tube extending out of the corresponding bolt hole. An annular stopper is formed on the outer wall of the other end of the tube, and the stopper presses against the corresponding positioning plate. The plastic tube is provided so that the volute can be adapted to different installation positions by cutting the tube in actual use, facilitating installation.

[0012] In the above-mentioned water pump volute, the bolt hole is a stepped hole, which consists of a large hole and a small hole coaxially arranged, and the limit seat is pressed on the bottom wall of the large hole.

[0013] In the above-mentioned water pump volute, the volute body is a cast integral part.

[0014] Compared with the existing technology, this water pump volute has the following advantages:

[0015] 1. Two positioning plates are integrally formed on the outer wall of the impeller cavity, and the thickness of the two positioning plates is connected to the volute body through reinforcing ribs 1 and 2 respectively, which can effectively ensure the overall strength and positioning stability of the positioning plates, thereby firmly positioning the volute.

[0016] 2. A plastic tube is provided so that the volute can be adapted to different installation positions by cutting the plastic tube in actual use, which is convenient for installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional schematic diagram of the water pump volute.

[0018] Figure 2 It is a three-dimensional schematic diagram of the water pump volute in another direction.

[0019] Figure 3 It is a cross-sectional diagram of the water pump volute.

[0020] In the figure, 1. volute body; 1a. water inlet; 1b. water outlet; 1c. impeller chamber; 2. positioning plate; 3. reinforcing rib 1; 4. reinforcing rib 2; 5. plastic pipe; 5a. limit seat; 6. bolt hole. DETAILED DESCRIPTION

[0021] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0022] like Figure 1 and Figure 2 As shown, the volute of the water pump includes a volute body 1 with a water inlet 1a and a water outlet 1b. An impeller chamber 1c connected to the water inlet 1a is formed in the volute body 1, and in actual products, the impeller chamber 1c and the water inlet 1a are coaxially arranged.

[0023] in,

[0024] Positioning plates 2 are integrally formed on both sides of the outer wall of the impeller chamber 1c, and the positioning plates 2 are straight plates. The length of the positioning plates 2 extends radially along the impeller chamber 1c, and the two positioning plates 2 are symmetrically distributed along the central axis of the impeller chamber 1c. Figures 1 to 3 As shown, the thickness extension direction of the positioning plate 2 is perpendicular to the axial direction of the impeller chamber 1c, a reinforcing rib 3 is formed between one side of the thickness of the positioning plate 2 and the volute body 1, and a reinforcing rib 2 4 is formed between the other side of the thickness of the positioning plate 2 and the volute body 1; the ends of the two positioning plates 2 that are away from each other are both provided with bolt holes 6 along the thickness direction of the positioning plates 2.

[0025] During actual installation, the volute is positioned by using the bolt holes 6 in conjunction with the bolts.

[0026] Two positioning plates 2 are integrally formed on the outer wall of the impeller chamber 1c, and the thickness sides of the two positioning plates 2 are connected to the volute body 1 through reinforcing ribs 1 3 and 2 4 respectively, which can effectively ensure the overall strength and positioning stability of the positioning plates 2, thereby firmly positioning the volute.

[0027] Specifically, the volute body 1 is a single-piece casting; one end of each of the reinforcing ribs 3 and 4 extends to the outer wall of the impeller chamber 1c, while the other ends of each extend to the corresponding positioning plate 2, further stably positioning the positioning plate 2. Furthermore, the connection points between the reinforcing ribs 3 and 4 connected to the same positioning plate 2 are distributed along the length of the positioning plate 2, further enhancing the strength and positioning stability of the positioning plate 2.

[0028] like Figures 1 to 3As shown, a plastic tube 5 is provided in each bolt hole 6, and one end of the plastic tube 5 extends out of the corresponding bolt hole 6. An annular limit seat 5a is formed on the outer wall of the other end of the plastic tube 5. The limit seat 5a is coaxially arranged with the plastic tube 5, and the limit seat 5a is pressed against the corresponding positioning plate 2. The plastic tube 5 is provided so that the volute can be adapted to different installation positions by shearing operation during actual use, which is convenient for installation. Further explanation, the type of the bolt hole 6 is a stepped hole, and the bolt hole 6 consists of a large hole and a small hole arranged coaxially, and the limit seat 5a is pressed on the bottom wall of the large hole. Preferably, the outer wall of the plastic tube 5 and the corresponding small hole are in contact with each other through the circumferential surface.

[0029] In actual products, each positioning plate 2 is provided with two bolt holes 6, and the two bolt holes 6 on the same positioning plate 2 are distributed along the width direction of the positioning plate 2 to further enhance the positioning strength and stability of the volute.

[0030] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

Claims

1. A water pump volute, comprising a volute body (1) having a water inlet (1a) and a water outlet (1b), wherein an impeller chamber (1c) communicating with the water inlet (1a) is formed in the volute body (1), and characterized in that: Positioning plates (2) are integrally formed on both sides of the outer wall of the impeller chamber (1c), the length of the positioning plates (2) extends radially along the impeller chamber (1c), and the two positioning plates (2) are symmetrically distributed along the central axis of the impeller chamber (1c); the thickness extension direction of the positioning plates (2) is perpendicular to the axial direction of the impeller chamber (1c), a reinforcing rib (3) is formed between one side of the thickness of the positioning plates (2) and the volute body (1), and a reinforcing rib (4) is formed between the other side of the thickness of the positioning plates (2) and the volute body (1); bolt holes (6) are provided through the ends of the two positioning plates (2) that are separated from each other along the thickness direction of the positioning plates (2).

2. The water pump volute according to claim 1, characterized in that: One end of the reinforcing rib 1 (3) and the reinforcing rib 2 (4) extends to the outer wall of the impeller chamber (1c), and the other end of the reinforcing rib 1 (3) and the reinforcing rib 2 (4) extends to the corresponding positioning plate (2).

3. The water pump volute according to claim 2, characterized in that: In the reinforcing ribs 1 (3) and 2 (4) connected to the same positioning plate (2), the connection position of the reinforcing ribs 1 (3) and the positioning plate (2) and the connection position of the reinforcing ribs 2 (4) and the positioning plate (2) are distributed along the length direction of the positioning plate (2).

4. The water pump volute according to claim 1, 2 or 3, characterized in that: A plastic tube (5) is provided in each bolt hole (6), and one end of the plastic tube (5) extends out of the corresponding bolt hole (6). An annular limiting seat (5a) is formed on the outer wall of the other end of the plastic tube (5), and the limiting seat (5a) is pressed against the corresponding positioning plate (2).

5. The water pump volute according to claim 4, characterized in that: The bolt hole (6) is a stepped hole. The bolt hole (6) is composed of a large hole and a small hole that are coaxially arranged. The limiting seat (5a) is pressed on the bottom wall of the large hole.

6. The water pump volute according to claim 1, characterized in that: The volute body (1) is a cast integral part.

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