CN212744457U

CN212744457U - Go out water section and centrifugal pump thereof

Info

Publication number: CN212744457U
Application number: CN202021074413.1U
Authority: CN
Inventors: 孙琦; 刘盛通
Original assignee: Guangdong Jiaqi Pump Co ltd
Current assignee: Guangdong Jiaqi Pump Co ltd
Priority date: 2020-06-11
Filing date: 2020-06-11
Publication date: 2021-03-19
Anticipated expiration: 2030-06-11

Abstract

The utility model discloses a water outlet section, which comprises a cylinder body, wherein a cavity is arranged in the cylinder body; the mechanical seal cavity is arranged at the bottom of the cavity and is provided with a through hole; the first opening is arranged on the side wall of the cavity and used for mounting a water outlet pipe, and the water outlet pipe is communicated with the cavity; the positioning opening is arranged at the top of the cavity and provided with an outward flange, and the tail end of the outward flange is provided with a positioning spigot. The water outlet section is formed by punching a cylinder body, provides a water outlet pipe of a foundation and a mechanical sealing cavity to ensure the foundation function, and is flanged at a positioning opening for connection, so that the installation is convenient; and a positioning spigot is further arranged, so that the positioning accuracy is ensured.

Description

Go out water section and centrifugal pump thereof

Technical Field

The utility model relates to a centrifugal pump technical field, in particular to go out water section and centrifugal pump thereof.

Background

In the pump body of current water pump, go out the water section and be used for connecting out the water cavity, the main effect of play water section is equivalent to the pump head, consequently, the structure of play water section need guarantee leakproofness and durability, but traditional play water section is the casting shaping mostly, and its structure of own has congenital defect such as not waterproof, and the follow-up processing of the fashioned material of casting is very loaded down with trivial details simultaneously, and the location structure of its details is hardly carried out perfect processing, leads to the installation location inaccurate, influences the use of water pump.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve one of the technical problem that exists among the prior art at least, provide a go out water section and centrifugal pump thereof, can install the location more accurate, application scope is wide.

According to a first aspect of the present invention, there is provided a water outlet section, comprising a cylinder, wherein a cavity is arranged in the cylinder; the mechanical seal cavity is arranged at the bottom of the cavity and is provided with a through hole; a first opening provided in a sidewall of the cavity; the positioning opening is arranged at the top of the cavity and provided with an outward flange, and the tail end of the outward flange is provided with a positioning spigot.

Has the advantages that: this play water section passes through the stamping forming barrel, provides basic first opening and mechanical seal chamber and guarantees basic function to the location opening part of connecting usefulness is gone out the flanging and is handled, easy to assemble, and further sets up the location tang, guarantees the accuracy of location.

According to the utility model discloses the play water section of first aspect embodiment, the cross sectional shape of location tang is the dovetail shape, guarantees the location performance of location tang.

According to the utility model discloses the play water section of first aspect embodiment is equipped with the chamfer between location tang and the flanging, ensures that the structure atress is reasonable.

According to the utility model discloses the play water section of first aspect embodiment, the outlet pipe is installed to first opening part, and the outlet pipe communicates with the cavity, as the connecting pipe of play water.

According to the utility model discloses the play water section of first aspect embodiment, first opening part are equipped with the location lateral wall, and the orientation that the cavity was kept away from along the location lateral wall is protruding, and in the outlet pipe was fixed in the location lateral wall, it was more accurate to set up the installation location that the outlet pipe was guaranteed to the location lateral wall.

According to the utility model discloses the play water section of first aspect embodiment, the end of outlet pipe extends to in the first opening, and crosses the bottom of location lateral wall at least, guarantees the leakproofness of outlet pipe.

According to the utility model discloses the play water section of first aspect embodiment, the direction that the cavity was kept away from in the mechanical seal chamber is protruding, and the through-hole setting is in bellied outside, ensures that the cavity volume is enough.

According to the utility model discloses a second aspect embodiment provides a centrifugal pump, uses the utility model discloses the play water section of first aspect embodiment, the installation location is more accurate, and the performance is more superior.

Drawings

In order to more clearly illustrate the technical solution in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is clear that the described figures represent only some embodiments of the invention, not all embodiments, and that a person skilled in the art can also derive other designs and figures from these figures without inventive effort.

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

fig. 2 is a front view of the cartridge in an embodiment of the invention.

Detailed Description

This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

Referring to fig. 1-2, a water outlet section comprises a cylinder 10, in which a cavity 101 is arranged; the mechanical seal cavity 11 is arranged at the bottom of the cavity 101, and a through hole is formed in the mechanical seal cavity 11; the first opening 12 is arranged on the side wall of the cavity 101, a water outlet pipe 20 is arranged at the first opening 12, and the water outlet pipe 20 is communicated with the cavity 101; the positioning opening 13 is arranged at the top of the cavity 101, the positioning opening 13 is provided with a flanging 131, and the tail end of the flanging 131 is provided with a positioning spigot 132. The water outlet section is formed by punching a cylinder body 10, provides a water outlet pipe 20 of a foundation and a mechanical seal cavity 11 to ensure the foundation function, and is processed by an outward flange 131 at a positioning opening 13 for connection, so that the installation is convenient; and a positioning spigot 132 is further arranged to ensure the positioning accuracy.

In the present embodiment, the cross-sectional shape of the positioning spigot 132 is a dovetail groove shape, which ensures the positioning performance of the positioning spigot 132. Dovetail shape, i.e. a shape resembling "angle". Preferably, a chamfer is arranged between the positioning spigot 132 and the outward flange 131 to ensure reasonable stress on the structure.

In this embodiment, the first opening 12 is provided with a positioning sidewall 121, the positioning sidewall 121 protrudes along a direction away from the cavity 101, the water outlet pipe 20 is fixed in the positioning sidewall 121, actually, the positioning sidewall 121 is formed by flanging the cylinder 10 at the first opening 12, and the positioning sidewall 121 is arranged to ensure that the installation and positioning of the water outlet pipe 20 are more accurate. The end of the outlet pipe 20 extends into the first opening 12 and at least over the bottom of the positioning side wall 121, ensuring the tightness of the outlet pipe 20. The water outlet pipe 20 and the first opening 12 are fixed by welding.

In the present embodiment, the mechanical seal chamber 11 is convex in a direction away from the cavity 101, and the through hole is disposed at the outermost side of the convex, ensuring that the cavity 101 has a sufficient volume.

A centrifugal pump is used in the water outlet section in the embodiment, so that the centrifugal pump is more accurate in installation and positioning and superior in performance.

The water outlet section and the centrifugal pump thereof ensure that the performance of the centrifugal pump, particularly the multistage horizontal submersible pump, is more excellent by redesigning the structure of the water outlet section. The water outlet section is formed by punching a plate and comprises a cylinder body 10 and a cavity 101 in the cylinder body 10, wherein the side wall of the cavity 101 is provided with a first opening 12, the first opening 12 is used for welding and fixing a water outlet pipe 20, the water outlet pipe 20 is a water outlet connecting pipe and is usually connected with a water outlet cavity of a water pump, the bottom of the cavity is provided with a mechanical seal cavity 11 which is used for connecting with a motor shaft of the water pump, a mechanical seal is required to be arranged for ensuring the seal during connection, and the mechanical seal cavity 11 is used for accommodating the mechanical seal; the positioning opening 13 is subjected to flanging 131 and necking treatment, and then a positioning spigot 132 is turned for being matched with the guide vane for installation, the water outlet section and the guide vane can be sealed into an independent cavity through a flat gasket, the water inlet section can replace the traditional casting water outlet section, and the application range is wide.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims

1. A water outlet section, comprising:

a cylinder body, which is internally provided with a cavity;

the mechanical seal cavity is arranged at the bottom of the cavity and is provided with a through hole;

a first opening disposed in a sidewall of the cavity;

the positioning opening is arranged at the top of the cavity and provided with an outward flange, and the tail end of the outward flange is provided with a positioning spigot.

2. The water outlet section according to claim 1, characterized in that: the cross section of the positioning spigot is in a dovetail groove shape.

3. The water outlet section according to claim 2, characterized in that: and a chamfer is arranged between the positioning spigot and the outward flange.

4. The water outlet section according to claim 1, characterized in that: and a water outlet pipe is arranged at the first opening and is communicated with the cavity.

5. The water outlet section according to claim 4, wherein: the edge of the first opening is provided with a positioning side wall, the positioning side wall protrudes along the direction far away from the cavity, and the water outlet pipe is fixed in the positioning side wall.

6. The water outlet section according to claim 5, wherein: the end of the outlet pipe extends into the first opening and at least passes over the bottom of the positioning side wall.

7. The water outlet section according to claim 1, characterized in that: the mechanical seal cavity is protruded along the direction far away from the cavity, and the through hole is formed in the outermost side of the protrusion.

8. A centrifugal pump, comprising: use of a water outlet section according to any one of claims 1 to 7.