CN215213956U

CN215213956U - Centrifugal pump

Info

Publication number: CN215213956U
Application number: CN202120107543.9U
Authority: CN
Inventors: 樊茂龙; 毛陆敏
Original assignee: Yangzhou Gaoya Power Pump Co ltd
Current assignee: Yangzhou Gaoya Power Pump Co ltd
Priority date: 2021-01-14
Filing date: 2021-01-14
Publication date: 2021-12-17
Anticipated expiration: 2031-01-14

Abstract

The utility model provides a centrifugal pump, which comprises a body, be equipped with water inlet and delivery port on the body, the water inlet with water outlet department bolted connection has automatic watertight fittings when the body stops operating, automatic watertight fittings self-closing the water inlet with the delivery port prevents this internal water is followed the water inlet with the delivery port flows out. When the centrifugal pump is in short-term stop operation as required, water in the centrifugal pump is stored in the body through the automatic water stopping device, so that the water cannot flow out of the water inlet or the water outlet, and when the centrifugal pump is started again, the centrifugal pump is directly used without being refilled, and the working efficiency is improved.

Description

Centrifugal pump

Technical Field

The utility model belongs to the technical field of the centrifugal pump technique and specifically relates to a centrifugal pump that can automatic lock water is related to.

Background

The pump is a universal machine with wide application, is not only a main device for conveying fluids in various industrial doors such as metallurgy, steel, chemical industry, petrifaction and medicine, but also is a necessary water supply and drainage device in the fields of municipal water supply and sewage treatment in daily life.

Centrifugal pump simple structure easily installs, by the wide use, need fill up liquid in to the centrifugal pump before the centrifugal pump uses, when needing the suspension centrifugal pump because work, liquid can be followed and imported and exported in the centrifugal pump and flow, need repeated filling liquid when reusing, influence work efficiency.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides a centrifugal pump which can automatically lock water and has high working efficiency.

The utility model discloses a following technical scheme realizes: the utility model provides a centrifugal pump, includes the body, be equipped with water inlet and delivery port on the body, the water inlet with delivery port department bolted connection has automatic sealing device when the body stops the operation, automatic sealing device self-closing the water inlet with the delivery port prevents this internal water follow the water inlet with the delivery port flows out.

Preferably, the automatic water stopping device comprises a shell, the shell is in threaded connection with a base, a conical section is arranged inside the shell, a baffle is fixedly connected to the base, a spring and a flow stopping plug are sequentially connected between the baffle and the conical section, and the spring presses the flow stopping plug against the conical section.

Preferably, the water inlet is connected with the base through a bolt, and the water outlet is connected with the shell through a bolt.

Preferably, the base comprises a flange, the flange is fixedly connected with a threaded section, a through hole is formed in the middle of the threaded section, the baffle is in a cross shape, and the baffle is fixed on the inner wall of the through hole.

Compared with the prior art, the utility model discloses a body, be equipped with water inlet and delivery port on the body, the water inlet with water outlet department bolted connection has automatic sealing device when the body stops operating, automatic sealing device self-closing the water inlet with the delivery port prevents this internal water is followed the water inlet with the delivery port flows out. When the centrifugal pump is in short-term stop operation as required, water in the centrifugal pump is stored in the body through the automatic water stopping device, so that the water cannot flow out of the water inlet or the water outlet, the purpose of automatic water locking is achieved, when the centrifugal pump is started again, the centrifugal pump is not required to be refilled, the centrifugal pump can be directly used, and the working efficiency is improved.

Drawings

FIG. 1 is a schematic view of the connection structure of the centrifugal pump of the present invention;

FIG. 2 is an enlarged view at A of FIG. 1;

FIG. 3 is a schematic view of the base structure of the present invention;

in the figure: 1. a body; 11. a water inlet; 12. a water outlet; 2. an automatic water stopping device; 21. a housing; 211. a tapered section; 22. a base; 221. a baffle plate; 222. a flange; 223. a threaded segment; 224. a through hole; 23. a spring; 24. and (4) stopping flow.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict.

As shown in fig. 1-3: the utility model provides a centrifugal pump, includes body 1, be equipped with water inlet 11 and delivery port 12 on the body 1, water inlet 11 with delivery port 12 department bolted connection has automatic sealing device 2 when body 1 shut down, automatic sealing device 2 self-closing water inlet 11 with delivery port 12 prevents the water follow in the body 1 water inlet 11 with delivery port 12 flows out. When the centrifugal pump is in short-term stop operation as required, water in the centrifugal pump is stored in the body 1 through the automatic water stopping device 2, so that the water cannot flow out of the water inlet 11 or the water outlet 12, the purpose of automatic water locking is achieved, when the centrifugal pump is started again, the centrifugal pump is not required to be refilled, the centrifugal pump can be directly used, and the working efficiency is improved.

The automatic water stopping device 2 comprises a shell 21, wherein the shell 21 is in threaded connection with a base 22, a conical section 211 is arranged inside the shell 21, a baffle 221 is fixedly connected to the base 22, a spring 23 and a flow stopping plug 24 are sequentially connected between the baffle 221 and the conical section 211, and the spring 23 presses the flow stopping plug 24 against the conical section 211. When the centrifugal pump operates, the body 1 pushes water flow to move, the water flow pushes the flow stopping plug 24 to be capable of flowing normally, after the centrifugal pump stops working, the water flow loses power, and the flow stopping plug 24 is pushed by the resilience force of the spring 23 to close the water inlet 11 and the water outlet 12, so that the water remained in the body 1 is remained.

The water inlet 11 is connected with the base 22 through a bolt, and the water outlet 12 is connected with the shell 21 through a bolt. If a connection error would cause the water inlet 11 and the water outlet 12 to be blocked, the centrifugal pump cannot work normally.

The base 22 comprises a flange 222, a threaded section 223 is fixedly connected to the flange 222, an external thread is arranged on the threaded section 223, an internal thread is arranged on the housing 21, the two are connected through the thread, and a pipe thread connection is preferably used for sealing. A through hole 224 is formed in the middle of the threaded section 223, the baffle 221 is in a cross shape, and the baffle 221 is fixed on the inner wall of the through hole 224. The baffle 221 is used for supporting the spring 23 and enabling water to normally pass through the base 22, so a flow hole 224 is formed at the baffle 221 to enable water to pass through the baffle 221.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.

Claims

1. The utility model provides a centrifugal pump, includes the body, be equipped with water inlet and delivery port on the body, its characterized in that: the automatic water stopping device is connected with the water inlet and the water outlet through bolts, and when the body stops running, the automatic water stopping device automatically closes the water inlet and the water outlet to prevent water in the body from flowing out of the water inlet and the water outlet.

2. The centrifugal pump of claim 1, wherein: the automatic water stopping device comprises a shell, the shell is in threaded connection with a base, a conical section is arranged inside the shell, a baffle is fixedly connected to the base, a spring and a flow stopping plug are sequentially connected between the baffle and the conical section, and the spring presses the flow stopping plug against the conical section.

3. The centrifugal pump of claim 2, wherein: the water inlet is connected with the base through a bolt, and the water outlet is connected with the shell through a bolt.

4. The centrifugal pump of claim 2, wherein: the base comprises a flange, the flange is fixedly connected with a thread section, a through hole is formed in the middle of the thread section, the baffle is in a cross shape, and the baffle is fixed on the inner wall of the through hole.