CN206347156U

CN206347156U - Rectilinear check-valves

Info

Publication number: CN206347156U
Application number: CN201621485289.1U
Authority: CN
Inventors: 陈建海
Original assignee: KAIST VALVE GROUP CO Ltd
Current assignee: KAIST VALVE GROUP CO Ltd
Priority date: 2016-12-31
Filing date: 2016-12-31
Publication date: 2017-07-21
Anticipated expiration: 2026-12-31

Abstract

A kind of rectilinear check-valves of the utility model, including valve body and bonnet, intake channel and exit passageway are provided with the valve body, the intake channel is connected with exit passageway, the connectivity part is provided with ball float, the ball float is stuck in connectivity part, the ball float side is provided with guided way, the guided way is made up of two pieces of vertically disposed plate bodys, between the two boards body there is spacing to set and form the track of ball float, the ball float card in orbit, can in vertical direction be rolled along track, corresponding on the two boards body to offer multiple holes.The utility model has the advantage of：It is simple in construction, using globe disk, guided way can be prolonged vertically upward during unlatching, weight during closing by ball is vertically fallen, and practical, good airproof performance, service life are long.

Description

Rectilinear check-valves

Technical field

The utility model relates generally to valve field, more particularly to a kind of rectilinear check-valves.

Background technology

Guide rod is carried on lift check valve flap, guide rod can be freely lifted in bonnet pilot hole.When pipeline is situated between Matter is flowed into according to assigned direction, when flap pressure below exceedes its top pressure, promotes flap to be oriented to along bonnet on centerline hole Rise, valve is automatically turned on, so that flow of media；If fluid right-to-left flows, that is, when swinging to inflow, then pressure above flap More than pressure below, flap is pressed on valve seat by two-way pressure difference and flap deadweight, so that medium can not pass through, that is, is flowed Body can not flow backwards；And when conduit fluid pressure is bigger, sealing face pressure must be tighter, and sealing effectiveness is better.Normal elevator formula non-return The top of the flap of valve is in bar shape, and cylinder is in pilot sleeve and along pilot sleeve madial wall in above-below direction activity, flap Bottom it is in the form of annular discs, be against valve seat or valve interior wall formation bayonet socket on, the shape of this flap is for high pressure, Jie in narrow footpath Matter mobility status, between cylinder position and pilot sleeve, disk position can all wear and tear comparatively fast, eventually influence valve sealing. And conventional pilot sleeve typically only opens a through hole with being connected in valve body on the wall of side, the pressure that guide sleeve barrel is subject to is uneven Weighing apparatus, can influence this body structure and the guide effect of pilot sleeve for a long time, accelerate the abrasion with flap.

Utility model content

The utility model is in view of the above-mentioned problems, provide a kind of rectilinear check-valves, it is intended to solve the above problems.

The purpose of this utility model can be realized by following technical proposals：Rectilinear check-valves, including valve body and set It is placed in the bonnet of body top, the valve body and is provided with intake channel and exit passageway, one end of the intake channel is opened in valve One side surface of body is as water inlet, and the bottom of the other end of the intake channel in valve body, the opening direction at the end is vertical Upwards；One end of the exit passageway is opened in another side surface of valve body as delivery port, and the other end of the exit passageway exists Middle and upper part in valve body, the top at the end is communicated to body top surface, and the lower openings direction at the end is vertically downward；It is described enter Another end opening and the other end open communication of exit passageway of mouth passage, the connectivity part are provided with ball float, and the ball float is located at In the other end of exit passageway, the ball float is stuck in connectivity part, realizes to the cut-off between intake channel and exit passageway；It is described Guided way is additionally provided with the other end of exit passageway, the guided way is arranged at ball float side, and the guided way is vertical by two pieces The plate body of setting is constituted, and the lower end of the two boards body is against at another end opening of exit passageway, the two boards body it is upper End extends upwardly to body top and is against on bonnet, between the two boards body there is spacing to set and form the rail of ball float Road, in orbit, the ball float can in vertical direction be rolled the side card of the ball float along track, right on the two boards body That answers offers multiple holes, move towards spaced set of the multiple hole along plate body, and the multiple hole is oriented horizontal direction.

Further, the top the week side of boss of the valve body is provided with screwed hole, and the bonnet is provided with corresponding with screwed hole Through hole, the upper end of stud is connected with nut thread, and the lower end of stud is threadedly coupled after passing through through hole with screwed hole, real The connection of existing bonnet and valve body；Sealing ring is provided between at the top of the valve body and bonnet.

Further, the lower surface of the bonnet is provided with groove, and the upper end of the two boards body is against in groove.

The utility model has the advantage of：It is simple in construction, coordinated using globe disk and guided way, be provided with guided way many Individual hole, globe disk can prolong guided way vertically upward during unlatching, and weight during closing by ball is vertically fallen, practical, sealing The good, service life of property is long.

Brief description of the drawings

Fig. 1 is structural representation of the present utility model.

Part numbers are as follows in figure：

1 valve body, 2 bonnets, 3 intake channels, 4 exit passageways, 5 water inlets, 6 delivery ports, 7 ball floats, 8 plate bodys, 9 tracks, 10 Hole, 11 sealing rings, 12 grooves.

Embodiment

Embodiment of the present utility model is described in detail below in conjunction with accompanying drawing, becomes apparent from those skilled in the art Ground understands how to put into practice the utility model.Although describing the utility model with reference to its preferred embodiment, these Embodiment is to illustrate, rather than limits scope of the present utility model.

As shown in figure 1, an embodiment of the rectilinear check-valves of the utility model, including valve body 1 and it is arranged at the top of valve body 1 Bonnet 2, intake channel 3 and exit passageway 4 are provided with the valve body 1, one end of the intake channel 3 is opened in the one of valve body 1 Side surface is as water inlet 5, the bottom of the other end of the intake channel 3 in valve body 1, the opening direction at the end it is vertical to On；One end of the exit passageway 4 is opened in another side surface of valve body 1 as delivery port 6, the other end of the exit passageway 4 Middle and upper part in valve body 1, the top at the end is communicated to the top surface of valve body 1, and the lower openings direction at the end is vertically downward；Institute Another end opening of intake channel 3 and the other end open communication of exit passageway 4 are stated, the connectivity part is provided with ball float 7, described floating Ball 7 is located in the other end of exit passageway 4, and the ball float 7 is stuck in connectivity part, realizes between intake channel 3 and exit passageway 4 Cut-off；Guided way is additionally provided with the other end of the exit passageway 4, the guided way is arranged at the side of ball float 7, the guiding Rail is made up of two pieces of vertically disposed plate bodys 8, and the lower end of the two boards body 8 is against at another end opening of exit passageway 4, institute The upper end for stating two boards body 8 extends upwardly to the top of valve body 1 and is against on bonnet 2, is set between the two boards body 8 with spacing The track 9 of ball float 7 is put and is formed, the side of the ball float 7 is stuck in track 9, the ball float 7 can be along track 9 in vertical direction Upper to roll, corresponding on the two boards body 8 to offer multiple holes 10, trend of the multiple hole 10 along plate body 8 is equidistantly set Put, the multiple hole 10 be oriented horizontal direction and aperture is identical, the multiple hole 10 realizes the medium flowed through in the He of plate body 8 Mutually circulated in exit passageway 4.

The top the week side of boss of the valve body 1 is provided with screwed hole, and the bonnet 2 is provided with the through hole corresponding with screwed hole, double The upper end of hook bolt is connected with nut thread, and the lower end of stud is threadedly coupled after passing through through hole with screwed hole, realizes bonnet 2 With the connection of valve body 1；Sealing ring 11 is provided between the top of valve body 1 and bonnet 2.

The lower surface of the bonnet 2 is provided with groove 12, and the upper end of the two boards body 8 is against in groove 12, the groove 12 play the effect spacing to the upper end of plate body 8.

Another embodiment, the aperture in the hole 10 on plate body 8 can also be designed as it is outer small interior big, i.e., aperture be from outside to inside by It is cumulative big, when medium is flowed through, the power to both sides is applied to plate body 8, by the spacing of groove 12, makes structure more firm.

The utility model uses globe disk, i.e. ball float 7.When valve is opened, ball float 7 can prolong under the medium effect flowed through Guided way is rolled vertically upward, and intake channel 3 is connected with exit passageway 4；When valve is closed, the weight by ball float 7 is vertically fallen, and is entered Separate between mouth passage 3 and exit passageway 4, realize the effect of non-return.

It should be pointed out that for the utility model through absolutely proving, can also have a variety of conversion and the implementation of remodeling Scheme, it is not limited to the specific embodiment of above-mentioned embodiment.Above-described embodiment as just explanation of the present utility model, and It is not to limitation of the present utility model.In a word, protection domain of the present utility model should include those for ordinary skill Obvious conversion or replacement and remodeling for personnel.

Claims

1. rectilinear check-valves, including valve body（1）Be arranged at valve body（1）The bonnet at top（2）, the valve body（1）Inside it is provided with Intake channel（3）And exit passageway（4）, it is characterised in that the intake channel（3）One end be opened in valve body（1）Side table Face is used as water inlet（5）, the intake channel（3）The other end in valve body（1）Interior bottom, the opening direction at the end it is vertical to On；The exit passageway（4）One end be opened in valve body（1）Another side surface be used as delivery port（6）, the exit passageway（4） The other end in valve body（1）Interior middle and upper part, the top at the end is communicated to valve body（1）Top surface, the lower openings side at the end To vertically downward；The intake channel（3）Another end opening and exit passageway（4）Other end open communication, the connectivity part It is provided with ball float（7）, the ball float（7）Positioned at exit passageway（4）The other end in, the ball float（7）Connectivity part is stuck in, is realized To intake channel（3）And exit passageway（4）Between cut-off；The exit passageway（4）The other end in be additionally provided with guided way, institute State guided way and be arranged at ball float（7）Side, the guided way is by two pieces of vertically disposed plate bodys（8）Constitute, the two boards body （8）Lower end be against exit passageway（4）Another end opening at, the two boards body（8）Upper end extend upwardly to valve body（1） Top is simultaneously against bonnet（2）On, the two boards body（8）Between have spacing set and form ball float（7）Track（9）, institute State ball float（7）Side be stuck in track（9）It is interior, the ball float（7）Can be along track（9）Roll in vertical direction, described two pieces Plate body（8）It is above corresponding to offer multiple holes（10）, the multiple hole（10）Along plate body（8）Move towards spaced set, it is described Multiple holes（10）Be oriented horizontal direction.

2. rectilinear check-valves according to claim 1, it is characterised in that the valve body（1）Top the week side of boss be provided with spiral shell Pit, the bonnet（2）The through hole corresponding with screwed hole is provided with, the upper end of stud is connected with nut thread, double end The lower end of bolt is threadedly coupled after passing through through hole with screwed hole, realizes bonnet（2）And valve body（1）Connection；The valve body（1）With Bonnet（2）Sealing ring is provided between top（11）.

3. rectilinear check-valves according to claim 1, it is characterised in that the bonnet（2）Lower surface be provided with groove （12）, the two boards body（8）Upper end be against groove（12）It is interior.