CN205841884U

CN205841884U - There is the check-valves of cutoff function

Info

Publication number: CN205841884U
Application number: CN201620628760.1U
Authority: CN
Inventors: 徐正贵; 王云凤; 钱宗保; 陶正庚; 刘建萍
Original assignee: ANHUI GLANF MECHANICAL EQUIPMENT Co Ltd
Current assignee: ANHUI GLANF MECHANICAL EQUIPMENT Co Ltd
Priority date: 2016-06-22
Filing date: 2016-06-22
Publication date: 2016-12-28
Anticipated expiration: 2026-06-22

Abstract

A kind of check-valves with cutoff function, including valve body, valve gap, flap, entrance point that described valve body two ends are respectively interconnected and the port of export, cavity is had on valve body top, described valve gap is positioned at above cavity and is connected with valve body by the bolt at two ends, nut, cavity side is fixed in rotating shaft, curved end of cranking arm is connected with described rotating shaft in a rotatable manner, described in crank arm is connected fixing with flap one side, crank arm on the right side of a bolt is set, bolt one end is positioned at cavity, and the other end through this check-valves and contacts with check-valves body seal.Arranging a bolt at flap opposite side, bolt passes valve body or valve gap, by bolt, flap is applied an active force, so that check-valves has stop valve function concurrently, is truly realized multi-purpose valve, provides cost savings, has good economic benefit.

Description

There is the check-valves of cutoff function

Technical field

This utility model relates to valve body technical field, is specifically related to a kind of check-valves.

Background technology

Check-valves refers to rely on medium itself to flow and automatic open and close flap, is used for the valve preventing medium from flowing backwards, also known as Non-return valve, check valve, reflux valve and counterbalance valve.Check-valves belongs to a kind of automatic valve, and its Main Function is to prevent medium from falling Stream, prevent pump and drive motor reversion, and the releasing of vessel media.When to install needing again when in pipeline, fluid dams Individually stop valve, thus on a pipeline, multiple valve is installed, this is unfavorable for the installation of pipeline, economically examines simultaneously Consider and also can increase more cost.

Utility model content

Technical problem to be solved in the utility model is to overcome existing technological deficiency, it is provided that one has cut-off merit The check-valves of energy.

Technical problem to be solved in the utility model uses following technical scheme to realize:

A kind of check-valves with cutoff function, including valve body, valve gap, flap, valve body two ends are respectively interconnected Entrance point and the port of export, had on valve body top cavity, valve gap to be positioned at above cavity and connected with valve body by the bolt at two ends, nut Connecing, cavity side is fixed in rotating shaft, and curved end of cranking arm is connected with rotating shaft in a rotatable manner, cranks arm be connected fixing with flap one side And driving flap along axis of rotation, flap is positioned at below cavity and just covers the flowing of valve body fluid under self gravitation effect Passage.Arranging a groove on valve body with valve flap contacts face, groove, built with sealing ring, can rise when flap covers valve body To better seal effect, cranking arm, right side arranges a bolt, and bolt one end is positioned at cavity, and the other end is through this check-valves also Contacting with check-valves body seal, bolt can pass valve gap in a vertical manner, it is also possible in an inclined manner through valve body, works as rotation When turning bolt, it stretches at cavity end applying one active force of cranking arm, and makes flap cover fluid flowing passage in valve body, thus real The function now ended, when using as normal check-valves, to stretch into chamber portion shorter for bolt, does not interferes with the normal of flap Work.

Bolt is stretched into that one end of cavity and is set to conical by its shape, make bolt and preferably laminating of cranking arm, when bolt is to incline When tiltedly mode is arranged on valve body, arranging recess cranking arm at threaded bolt contacts, recess just props up at bolt end, prevents bolt The skidding occurred when applying active force to cranking arm.

The beneficial effects of the utility model are: arrange a bolt at flap opposite side, and bolt passes valve body or valve gap, logical Cross bolt and flap is applied an active force, so that check-valves has stop valve function concurrently, be truly realized multi-purpose valve, save Cost, has good economic benefit.

Accompanying drawing explanation

Fig. 1 is this utility model schematic diagram.

Detailed description of the invention

For the technological means making this utility model realize, creation characteristic, reach purpose and be easy to understand with effect, under Face combines and is specifically illustrating, and this utility model is expanded on further.

As it is shown in figure 1, a kind of check-valves with cutoff function, including valve body 1, valve gap 3, flap 7, valve body 1 two ends are divided The entrance point Wei not being interconnected and the port of export, have cavity 5, valve gap 3 are positioned at above cavity 5 and pass through two ends on valve body 1 top Bolt, nut be connected with valve body 1, cavity 5 side is fixed in rotating shaft 6, and 9 curved end of cranking arm are in a rotatable manner with rotating shaft 6 even Connecing, cranking arm 9 fixing with flap 7 one side be connected and drive flap 7 to rotate along rotating shaft 6, and flap 7 is positioned at below cavity 5 and at self The passage of fluid flowing in valve body 1 is just covered under action of gravity.Valve body 1 with flap 7 contact surface arrange a groove, groove Built with sealing ring, better seal effect can be played when flap 7 covers valve body 1, cranking arm, a bolt 2 is set on the right side of 9, Bolt 2 one end is positioned at cavity 5, and the other end through this check-valves and contacts with check-valves body seal, and bolt 2 can be with vertically Mode passes valve gap 3, it is also possible in an inclined manner through valve body 1, when swivel bolt 2, and it stretches at cavity 5 end cranking arm 9 Apply an active force, make flap 7 cover fluid flowing passage in valve body 1, thus realize the function of cut-off, as normal non-return When valve uses, to stretch into cavity 5 part shorter for bolt 2, does not interferes with the normal work of flap 7.

Bolt 2 is stretched into that one end of cavity 5 and is set to conical by its shape, make bolt 2 and 9 preferably fit, when bolt 2 with cranking arm When being arranged in an inclined manner on valve body 1, crank arm 9 with bolt 2 contact position recess 10 is set, recess 10 just props up bolt 2 At end, prevent bolt 2 to crank arm 9 applying active force time occur skidding.

Of the present utility model ultimate principle and principal character and of the present utility model advantage have more than been shown and described.One's own profession Skilled person will appreciate that of industry, this utility model is not restricted to the described embodiments, described in above-described embodiment and description Principle of the present utility model is simply described, on the premise of without departing from this utility model spirit and scope, this utility model is also Have various changes and modifications, in the range of these changes and improvements both fall within claimed this utility model.This utility model Claimed scope is defined by appending claims and equivalent thereof.

Claims

1. having a check-valves for cutoff function, including valve body, valve gap, flap, described valve body two ends are respectively interconnected Entrance point and the port of export, have cavity, described valve gap to be positioned at above cavity on valve body top and by the bolt at two ends, nut with Valve body connects, and rotating shaft is fixed on cavity side, and curved end of cranking arm is connected with described rotating shaft in a rotatable manner, described in crank arm and valve Lobe one side is fixing to be connected, it is characterised in that right side of cranking arm described in: arranges a bolt, and bolt one end is positioned at cavity, and the other end is worn Cross this check-valves and contact with check-valves body seal.

There is the check-valves of cutoff function the most as claimed in claim 1, it is characterised in that: described bolt passes in a vertical manner Described bonnet central position.

There is the check-valves of cutoff function the most as claimed in claim 1, it is characterised in that: described bolt passes in an inclined manner Described valve body.

There is the check-valves of cutoff function the most as claimed in claim 1, it is characterised in that: described bolt stretches into that one end of cavity For conical by its shape.

There is the check-valves of cutoff function the most as claimed in claim 3, it is characterised in that crank arm described in: and described threaded bolt contacts Place arranges recess, and described recess just props up at bolt end.

6. the check-valves with cutoff function as described in claim 1 to 5 is arbitrary, it is characterised in that: described valve body and flap Arranging a groove on contact surface, groove is built with sealing ring.