CN207961642U

CN207961642U - Integral check valve

Info

Publication number: CN207961642U
Application number: CN201820247493.2U
Authority: CN
Inventors: 董服义
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-02-12
Filing date: 2018-02-12
Publication date: 2018-10-12
Anticipated expiration: 2028-02-12

Abstract

The utility model discloses integral check valves, including valve body, the medium runner being formed in the valve body, the first locking nut and the second locking nut；Described valve body one end is equipped with to be equipped with and the matched second connecting portion of the second locking nut with the matched first connecting portion of the first locking nut, the other end；The valve body is structure as a whole, and spool is removably connected in the valve body.Spool is overall structure in the utility model, and when assembly is directly caught in valve body, and without carrying out anticreep to spool by end cap, simple in structure, assembly is simple, the difficulty for reducing installation of high degree；Secondly as valve body is structure as a whole, the possibility for reducing leakage of high degree, the service life of valve body is long.

Description

Integral check valve

Technical field

The utility model belongs to technical field, more particularly, to a kind of integral check valve.

Background technology

Check-valves is also known as check valve or non-return valve, and effect is to prevent the medium in pipeline from flowing backwards；Existing check-valves exists It needs that spool is first installed when assembly, then end cap is adhesively fixed onto valve body, not only assembly difficulty is big for the assembly method, processing The problems such as of high cost, and it is easy to appear leakages, and be bonded and need to use glue, environmental-protecting performance poor.

Utility model content

The utility model for overcome the deficiencies in the prior art, provides a kind of integral check valve being easily assembled.

To achieve the goals above, the utility model uses following technical scheme：Integral check valve, including valve body, shape Medium runner, the first locking nut in valve body described in Cheng Yu and the second locking nut；Described valve body one end is equipped with and described the The matched first connecting portion of one locking nut, the other end are equipped with and the matched second connecting portion of the second locking nut； The valve body is structure as a whole, and spool is removably connected in the valve body.Spool is overall structure, assembly in the utility model When be directly caught in valve body, without carrying out anticreep to spool by end cap, simple in structure, assembly is simple, the drop of high degree The difficulty of low installation；Secondly as valve body is structure as a whole, and the possibility for reducing leakage of high degree, the use of valve body Long lifespan；And without using glue, the feature of environmental protection is high；Spool is detachably connected with valve body simultaneously, and spool is directly from medium runner It is pressed in inlet valve body in one end open, it can be achieved that Fast Installation, improves spool installation effectiveness.

Further, the valve body is equipped with and the matched stopper of the spool；Setting shelves portion can block spool from Jie One end end in mass flow road is pierced by, and is kept spool to will not fall off in medium runner, is improved the stability of valve body.

Further, the spool is equipped with card division, and the valve body is equipped with and the matched anti-delinking part in the card division；Card Portion is matched with anti-delinking part, and spool will not be disengaged from spool by the one end entered, and ensure spool under fluid impact, spool is steady It is fixed, it is movable not with fluid impact.

Further, the stopper is equipped with a bulge loop.

Further, the stopper is the protrusion extended inwardly to form by the valve end；Stopper is by medium runner Inner wall extends inwardly to form, and is integrally formed with valve body, and there is no need to be installed, stability is high.

Further, the anti-delinking part is the bulge loop extended inwardly to form by the valve interior wall；Anti-delinking part is that bulge loop can It is against on the side wall of bulge loop convenient for card division, to limit spool counter motion, avoids spool counter motion；Anti-delinking part is by medium flow field The inner wall in road extends internally, no post-production, easy to produce.

Further, the spool includes being connected with the matched valve seat of the valve interior wall, insert body and with valve seat Connector；Setting valve seat can be in contact with valve interior wall, realize preliminary sealing, fluid can not be from valve seat and valve interior wall gap Outflow；Insert body can block the opening at the center of valve seat；Connector then positions insert body, and insert body is kept to live Stablize constant in dynamic direction.

Further, the card division is set on the connector.

Further, the valve seat be equipped with the matched first seal of the valve interior wall and with the spool sheet The second seal of mates；First seal, which is arranged, can ensure leakproofness between valve seat and the inner wall of medium runner, and Second seal is set, leakproofness between closure part and valve seat then can be improved, improves sealing effect.

In conclusion spool is overall structure in the utility model, when assembly, is directly caught in valve body, without passing through end Lid carries out anticreep to spool, simple in structure, and assembly is simple, the difficulty for reducing installation of high degree；Secondly as valve body is Integral structure, the possibility for reducing leakage of high degree, the service life of valve body are long.

Description of the drawings

Fig. 1 is the structural schematic diagram one of the utility model.

Fig. 2 is the structural schematic diagram two of the utility model.

Fig. 3 is the partial sectional view of the utility model.

Fig. 4 is the partial schematic diagram of the utility model.

Fig. 5 is the valve core structure schematic diagram of the utility model.

Fig. 6 is the valve core structure exploded view of the utility model.

Specific implementation mode

In order to make those skilled in the art be better understood from the utility model, below in conjunction with the utility model reality The attached drawing in example is applied, clear, complete description is carried out to the technical scheme in the embodiment of the utility model.

As shown in figures 1 to 6, a kind of integral check valve, including valve body 1, medium runner 10, spool 2 and the first locking nut 31 and second locking nut 32；The wherein described valve body 1 is a metallic conduit made of copper, and the medium runner 10 is in the valve body 1 Cylindrical passageway, fluid can directly pass through from the medium runner 10；It is equipped with first connecting portion 11 in one end of the valve body 1, The other end of valve body 1 is equipped with second connecting portion 12, and the first connecting portion 11 above has external screw thread, has in second connecting portion 12 There is external screw thread, first connecting portion 11, second connecting portion 12 and valve body 1 are integrally formed, therefore valve body 1 is structure as a whole；It is described The first locking nut 31 and first connecting portion be spirally connected, the second locking nut 32 and second connecting portion are spirally connected；In each first lock Tight 31 and second locking nut 32 of nut is equipped with a PPR pipe connector, can be heated with PPR pipe by the PPR pipe connector Connection.

Further, a spool is removably connected in the valve body, which is directly from second connecting portion 12 Residing end is formed directly into medium runner 10, is penetrated in medium runner 10；An anticreep is equipped in the valve body Portion 41, the anti-delinking part 41 are the circle bulge loop that valve interior wall extends inwardly to form, and described spool one end is against the anticreep In portion, to which spool 2 can not be disengaged reversely；The valve end is equipped with a stopper 42, which is that 1 inner wall of valve body is inside The circle protrusion extended to form；The spool end is against on the stopper side wall；A circle is equipped in the stopper Bulge loop, the bulge loop are integrally formed with stopper.

Further, the spool 2 includes valve seat 21, insert body 22, connector 23 and return unit 24；The valve seat 21 be the diameter unit of plastic identical with the longitudinal section diameter of medium runner 10 of longitudinal section, is had in the middle of the valve seat 21 One through-hole 210, fluid can be flowed out from the through-hole 210；A positioning concave ring 211 is equipped on the outer wall of valve seat 21, in the positioning First seal 25 is arranged on concave ring 211, which is an O-ring seals；When the spool 2 is penetrated to medium flow field When in road 10,21 outer wall of the valve seat is contacted with the inner wall of the medium runner 10, therefore first seal 25 and the medium The inner wall of runner 10 is in close contact, seamless between 10 inner wall of medium runner and the outer wall of valve seat 21；On 21 inner wall of the valve seat Equipped with stepped part 211, second seal 26 is equipped on the stepped part 211.

Further, the connector 23 is a Special plastic block, and the front end of the connector 23 is penetrated to valve seat 21, And end is in contact with second seal 26, and second seal 26 is compressed, to which second seal 26 can not disengage； Be respectively equipped with a circle bulge loop on the outer wall of 23 end of the connector and the inner wall of valve seat 21, connector 23 external force be caught in, Two bulge loops mutually limit, to which connector 23 can not disengage；The rear portion of the connector 23 is to be open with multiple flow liquids 230, fluid can be open in 230 from the flow liquid to flow out；Spaced elastic card division there are six being set on the connector 23 231, which is to be upturned with 23 integrally formed plastic sheet of connector, the end of the elasticity card division 231, because When institute's spool 2 is pressed into medium runner 10 by this, it can become downwards when elastic card division 231 is in contact with anti-delinking part 41 Shape, to which spool 2 can be by anti-delinking part, elastic card division 231 can be popped up again after by anti-delinking part 41, elastic card division 231 End be against on the wall of anti-delinking part 41, therefore spool 2 can not exit back；The insert body 22 is located at connector 23 Interior, which includes closure part 221 and valve rod 222, and the closure part 221 is a umbrella shape unit of plastic, described valve rod 222 are connected with the closure part 221, and 222 one end of the valve rod passes through the 23 bottom other end of the connector and 221 phase of closure part Even, closure part 221 can block the through-hole 210 of the valve seat 21, and the return unit 24 is set on valve rod 222, the return unit 24 One end is in contact with closure part 221, and the other end is against on connector 23, and return unit 24 is spring；The return unit 24 makes closure part It is against in second seal 26.

When fluid flows into medium runner 10, insert body 22 is open-top, and closure part 221 is de- with second seal 26 From, while return unit 24 is compressed, fluid passes through from through-hole 210, is flowed out after then flowing through flow liquid opening 230；When fluid stops When flowing into medium runner 10, closure part 221 is in contact with second seal 26 under 24 elastic force of return unit, blocks through-hole again 210, to which fluid can not reverse flow.

Obviously, described embodiment is only a part of the embodiment of the utility model, instead of all the embodiments. It is obtained by those of ordinary skill in the art without making creative efforts based on the embodiments of the present invention Every other embodiment should all belong to the range of the utility model protection.

Claims

1. a kind of integral check valve, including valve body（1）, be formed in the valve body（1）Interior medium runner（10）, first locking Nut（31）And second locking nut（32）；The valve body（1）One end is equipped with and first locking nut（31）It is matched First connecting portion（11）, the other end be equipped with and second locking nut（32）Matched second connecting portion（12）；Its feature It is：The valve body（1）It is structure as a whole, the valve body（1）Inside it is removably connected with spool（2）.

2. a kind of integral check valve according to claim 1, it is characterised in that：The valve body（1）It is equipped with and the valve Core（2）Matched stopper（42）.

3. a kind of integral check valve according to claim 1, it is characterised in that：The spool（2）It is equipped with card division （231）, the valve body（1）It is equipped with and the card division（231）Matched anti-delinking part（41）.

4. a kind of integral check valve according to claim 2, it is characterised in that：The stopper（42）It is equipped with a bulge loop （421）.

5. a kind of integral check valve according to claim 2, it is characterised in that：The stopper（42）For by the valve body （1）The protrusion that end extends inwardly to form.

6. a kind of integral check valve according to claim 3, it is characterised in that：The anti-delinking part（41）For by the valve Body（1）The bulge loop that inner wall extends inwardly to form.

7. a kind of integral check valve according to claim 3, it is characterised in that：The spool（2）Including with the valve Body（1）The matched valve seat of inner wall（21）, insert body（22）And and valve seat（21）Connected connector（23）.

8. a kind of integral check valve according to claim 7, it is characterised in that：The card division（231）Set on the company Fitting（23）On.

9. according to a kind of integral check valve described in full claim 7, it is characterised in that：The valve seat（21）Be equipped with it is described Valve body（1）The matched first seal of inner wall（25）With with the insert body（22）Matched second seal（26）.