A new impeller and magnetoelectric flowmeter

Abstract

The utility model relates to the technical field of impellers, and in particular to a novel impeller and magnetoelectric flowmeter, comprising a main body and a plurality of blades, wherein the blades are distributed on the side of the main body in a circular array with the center of the main body as the center of the circle, a mounting seat is provided at one end of the main body, and the mounting seat is provided with two drainage holes, which penetrate the mounting seat and connect one end and the other end of the main body; the blades are arc-shaped structures. The utility model realizes the improvement of water fluidity and the reduction of resistance through the setting of drainage holes and the setting of arc-shaped blades, so that the utility model is easier to be driven by water and rotate, and the effect of improving sensitivity is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of impellers, in particular to a novel impeller and a magnetoelectric flowmeter. Background Art

[0002] Flow measurement is a technology with increasing demand and plays a very important role in liquid measurement. The structure of the commonly used flowmeter, such as the Chinese utility model patent with patent number CN202221438828.1, has the following deficiencies in its impeller: 1. The blades are straight, which requires a large force to drive; 2. The connection seat of the impeller is sealed, which blocks the flow of water inside the flowmeter and reduces its fluidity. The above two deficiencies lead to poor measurement sensitivity of the flowmeter. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a new impeller and a magnetoelectric flowmeter, which improve the sensitivity through structural optimization.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0005] The utility model provides a novel impeller, comprising a main body and a plurality of blades, wherein the blades are distributed on the side of the main body in a circular array with the center of the main body as the center, a mounting seat is provided at one end of the main body, and the mounting seat is provided with two drainage holes, and the drainage holes penetrate the mounting seat and connect one end and the other end of the main body;

[0006] The blade is an arc-shaped structure.

[0007] Furthermore, the mounting seat has a central hole, and the two drainage holes are symmetrically arranged with the central axis of the central hole as the symmetry axis, and the drainage holes are connected to the central hole;

[0008] The mounting seat is symmetrically provided with two magnetic holes with the central axis of the central hole as the center axis, and magnets are arranged in the magnetic holes.

[0009] Furthermore, the inner side wall of the magnetic hole has a plurality of positioning ridges, and the tops of the positioning ridges are provided with guiding slopes.

[0010] Furthermore, two sides of the central hole are respectively connected with positioning grooves.

[0011] Furthermore, hollow holes are respectively provided on both sides of the mounting seat.

[0012] Furthermore, the arc center angle of the blade is 5-15°.

[0013] The utility model also provides a flow meter, comprising a housing and the novel impeller, wherein the novel impeller is installed in the housing, the housing is connected with a water inlet pipe and a water outlet pipe, and the housing is provided with a sensing module for sensing the rotation of the impeller.

[0014] Beneficial effects of the utility model: the utility model arranges drainage holes and blades with an arc-shaped structure, the former improving water fluidity and the latter reducing resistance, thereby making the utility model easier to be driven by water to rotate and achieving the effect of improving sensitivity. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the novel impeller of the utility model.

[0016] Figure 2 This is a schematic diagram of the new impeller of the utility model from another perspective.

[0017] Figure 3 It is a schematic diagram of the magnetoelectric flowmeter of the present utility model.

[0018] Figure 4 It is an exploded schematic diagram of the magnetoelectric flowmeter of the present utility model.

[0019] Figure numerals: 1—main body, 2—blade, 3—mounting seat, 4—drainage hole, 5—center hole, 6—magnetic hole, 7—magnet, 8—positioning ridge, 9—guide slope, 10—positioning groove, 11—hollow hole, 12—housing, 13—water inlet pipe, 14—water outlet pipe, 15—sensing module, 16—rotating shaft. DETAILED DESCRIPTION

[0020] In order to facilitate the understanding of those skilled in the art, the present invention is further described below in conjunction with the embodiments and drawings, and the contents mentioned in the implementation modes are not intended to limit the present invention. The present invention is described in detail below in conjunction with the drawings.

[0021] like Figure 1 and Figure 2 As shown, this embodiment provides a new impeller, including a main body 1 and a plurality of blades 2, wherein the blades 2 are distributed on the side of the main body 1 in a circular array with the center of the main body 1 as the center, and a mounting seat 3 is provided at one end of the main body 1, and the mounting seat 3 is provided with two drainage holes 4, and the drainage holes 4 pass through the mounting seat 3 to connect one end and the other end of the main body 1; the blades 2 are an arc-shaped structure.

[0022] like Figure 3 and Figure 4The figure shows a schematic diagram of the new impeller of the utility model applied to a magnetoelectric flowmeter, which includes a housing 12 and the new impeller mentioned above, wherein the new impeller is installed in the housing 12, the housing 12 is connected to a water inlet pipe 13 and a water outlet pipe 14, and the housing 12 is provided with a sensing module 15 for sensing the rotation of the impeller.

[0023] When working, water enters the outer casing 12 from the water inlet pipe 13, and the new impeller is driven to rotate by the flow of water. Since the blades 2 are arc-shaped, the contact area between the blades 2 and the water is larger, so that water can more easily drive the blades 2 to move and drive the new impeller to rotate; in addition, since the new impeller has drainage holes 4, water can not only overflow upward from the gaps between adjacent blades 2 and move to the water outlet pipe 14, but also move upward from the drainage holes 4, thereby making the water flow path more diverse and flexible, reliably reducing the resistance caused by internal undercurrents caused by water being blocked, allowing the force of the water to better act on the impeller, thereby making the measurement of water flow more sensitive.

[0024] In this embodiment, the mounting base 3 has a central hole 5, and two drainage holes 4 are symmetrically arranged with the central axis of the central hole 5 as the symmetry axis, and the drainage holes 4 are connected to the central hole 5;

[0025] The mounting seat 3 is symmetrically provided with two magnetic holes 6 with the central axis of the central hole 5 as the center axis, and magnets 7 are installed in the magnetic holes 6 .

[0026] That is, the center hole 5 is used to accommodate the rotating shaft 16 set on the outer shell 12, and the distribution of the two drainage holes 4 achieves the effect of making the water flow path more uniform; the magnetic hole 6 is used to accommodate the magnet 7. When the new impeller is driven by water to rotate, the sensing module 15 senses the changes in the magnetic field around the new impeller to achieve the effect of obtaining the number of rotations of the impeller, and calculates the water flow rate based on the number of rotations.

[0027] Specifically, the inner wall of the magnetic hole 6 has a plurality of positioning ridges 8, and the top of the positioning ridges 8 is provided with a guiding slope, so that the magnet 7 is installed into the magnetic hole 6 through the guidance of the guiding slope and is positioned by the positioning ridges 8, thereby ensuring the reliability of the installation.

[0028] Specifically, the two sides of the central hole 5 are connected with positioning grooves 10, and the rotating shaft 16 has corresponding positioning parts. That is, the new impeller can be used in water pumps in addition to flow meters. In this case, the positioning groove 10 is used to cooperate with the shaft of the motor to achieve the effect of synchronous rotation of the new impeller and the shaft of the motor.

[0029] In this embodiment, hollow holes 11 are respectively provided on both sides of the mounting seat 3 , which are also used to allow water to flow from more angles and reduce the force of water on the mounting seat 3 .

[0030] In this embodiment, the arc center angle of the blade 2 is 5-15°.

[0031] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Although the utility model is disclosed as a preferred embodiment as above, it is not used to limit the utility model. Any technician familiar with this profession can make some changes or modifications to equivalent embodiments of equivalent changes by using the technical content disclosed above without departing from the scope of the technical solution of the utility model. However, any simple modification, equivalent change and modification made to the above embodiments according to the technology of the utility model, which does not depart from the content of the technical solution of the utility model, belongs to the scope of the technical solution of the utility model.

Claims

1. A novel impeller, comprising a main body and a plurality of blades, wherein the blades are distributed on the side of the main body in a circular array with the center of the main body as the center, and characterized in that: A mounting seat is provided at one end of the main body, and the mounting seat is provided with two drainage holes, and the drainage holes penetrate the mounting seat and connect one end and the other end of the main body; The blade is an arc-shaped structure.

2. A novel impeller according to claim 1, characterized in that: The mounting seat has a central hole, and two drainage holes are symmetrically arranged with the central axis of the central hole as the symmetry axis, and the drainage holes are connected to the central hole; The mounting seat is symmetrically provided with two magnetic holes with the central axis of the central hole as the center axis, and magnets are arranged in the magnetic holes.

3. A novel impeller according to claim 2, characterized in that: The inner side wall of the magnetic hole is provided with a plurality of positioning ridges, and the top of the positioning ridges is provided with a guiding inclined surface.

4. A novel impeller according to claim 2, characterized in that: Both sides of the central hole are connected with positioning grooves respectively.

5. A novel impeller according to claim 1, characterized in that: Hollow holes are respectively arranged on both sides of the mounting seat.

6. A novel impeller according to claim 1, characterized in that: The arc center angle of the blade is 5-15°.

7. A magnetoelectric flowmeter, characterized in that: It comprises a shell and the novel impeller according to any one of claims 1 to 6, wherein the novel impeller is installed in the shell, the shell is connected with a water inlet pipe and a water outlet pipe, and the shell is provided with a sensing module for sensing the rotation of the impeller.

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