Check valve apparatus
Technical field
The utility model relates to valve fields, and in particular to check valve apparatus.
Background technique
Traditional check valve, connector are usually integrally formed with valve body, can only be adapted to a kind of adapter tube, poor for applicability, and
Once being damaged, whole check valve is needed replacing, causes replacement cost higher.In addition to this, previous check valve cannot be certainly
By the flow of adjusting feed liquor, it may have certain limitation.
Utility model content
In view of the deficiency of background technique, the utility model there is provided check valve apparatus, the technical problem to be solved is that
The connector of different model can be replaced to connect various sizes of adapter tube, moreover it is possible to control feed liquor flow.
In order to solve the above technical problems, the utility model provides following technical solution:
Check valve apparatus, including valve body are equipped with core assembly in the valve body, it is characterised in that: the valve body goes out liquid
End is communicated with dismountable connector, and liquid feeding end is equipped with the adjustable inlet of openings of sizes.
The joint screw thread is connected to the outlet end of the valve body.
The liquid feeding end of the valve body is communicated with the mobilizable feed liquor set to match, and the peripheral wall of the feed liquor set is equipped with logical
Hole, the axial gap of the formation between the base end wall of the valve body and the through-hole are the inlet, the bottom end of the valve body
Equipped with opening.
The liquid feeding end of the valve body is equipped with external screw thread, and the feed liquor puts on the interior spiral shell for being equipped with and matching with the external screw thread
Line.
The inner wall of feed liquor set above the internal screw thread is equipped with the first card slot, be equipped in first card slot with
The lower section of the internal screw thread is arranged in its first circlip to match, the through-hole, and the inner bottom surface of the feed liquor set is additionally provided with close
Packing.
The valve body has the spool chamber and filter chamber communicated, and the valve body is between the spool chamber and the filter chamber
It is provided inwardly with annular flange, the annular flange is equipped with seal washer, the core assembly in the one side towards the spool chamber
Including spool, spring and fixed frame, the spool being in contact with the sealed loop-pad, the valve are placed in the spool chamber
Core has the valve rod, is arranged with the spring on the valve rod, is equipped in the top of the spring and matches with the spool
The fixed frame, the valve rod hole to match with the valve rod, the fixed frame and the connector are additionally provided on the fixed frame
Inner cavity match.
It is equipped with filter screen in the filter chamber, second is equipped on the inner wall of the valve body of the liquid feeding side of the filter screen
Card slot, second card slot is interior to be equipped with matched second circlip.
Possessed beneficial effect is the utility model compared with prior art: by the way that joint screw thread is connected to valve body
On, the connector of different model can be replaced according to need, and to connect various sizes of adapter tube, applicability is wide, in addition to this, moreover it is possible to control
Feed liquor flow processed has good using effect.Even if joint failure, the cost of replacement is also cheaper, saves enterprise
Use cost.
Detailed description of the invention
The utility model has following attached drawing:
Fig. 1 is the perspective view of the explosion of the utility model.
Specific embodiment
As shown, check valve apparatus, including valve body 8, it is equipped with core assembly in the valve body 8, the outlet end of valve body 8 connects
It is connected with dismountable connector 7, in the present embodiment, connector 7 is threaded in the outlet end of valve body 8, by connecting 7 screw thread of connector
It connects on valve body 8, the connector 7 of different model can be replaced according to need, to connect various sizes of adapter tube, applicability is wide.In valve
The liquid feeding end of body 8 is equipped with the adjustable inlet of openings of sizes and is mainly accomplished by the following way in the present embodiment: in valve body 8
Liquid feeding end be communicated with match mobilizable feed liquor set 6, specifically, be valve body 8 liquid feeding end be equipped with external screw thread, into
Liquid set 6 is equipped with the internal screw thread to match with external screw thread, and feed liquor set 6 is threaded on valve body 8, in the peripheral wall of feed liquor set 6
It is equipped with through-hole, in the present embodiment, to guarantee uniformly accurately to control flow, is uniformly provided at four on the peripheral wall of feed liquor set 6
Through-hole in same level, the axial gap of the formation between the base end wall of valve body 8 and the through-hole are inlet, valve body
8 bottom end is equipped with opening.When adjusting the size of inlet, only feed liquor need to be covered 6 and be rotated up and down on valve body 8, that is, can control into
The opening and closing and size of liquid mouth.In addition to the present embodiment it is this mode of the through-hole to adjust inlet is set on feed liquor set other than,
There are also other modes, for example port is arranged in the peripheral wall of the liquid feeding end in valve body, and the size of port is controlled with the movement that feed liquor covers
Deng.
Feed liquor set 6 falls off after being threadedly coupled on valve body 8 in order to prevent, on the inner wall of feed liquor set 6 and in the inner screw thread
Top is equipped with the first card slot, is equipped with matched first circlip 10 in first card slot, the first circlip 10 can be prevented
Only internal screw thread screws out external screw thread, plays good position-limiting action.In the present embodiment, the lower section of internal screw thread is arranged in through-hole, when
Gap, that is, inlet size of the through-hole with feed liquor set 6 when mobile to 7 direction of connector on valve body 8, between through-hole and valve body 8
It will be gradually reduced, conversely, being then gradually increased, maximum is no more than the size of through-hole, in order to help feed liquor set 6 to be tightened on valve body 8
It is the not permeable leakage feed liquor set 6 of liquid, is additionally provided with gasket 1 in the inner bottom surface of feed liquor set 6, valve body 8, which can be screwed into, is adjacent to gasket 1
Position.
The valve body 8 has the spool chamber and filter chamber communicated, and spool chamber covers 6 close to feed liquor close to connector 7, filter chamber,
Valve body 8 is provided inwardly with annular flange between spool chamber and filter chamber, and the annular flange is equipped in the one side towards spool chamber
Seal washer 4, core assembly include spool, spring and fixed frame, and the spool being in contact with sealed loop-pad is placed in spool chamber
3, seal washer 4 and spool 3 cooperate in reversed feed liquor with good sealing effect, prevent liquid countercurrent, spool 3 has valve
Bar is arranged with spring 5 on valve rod, and valve rod provides guiding role to the movement of spring 5, is equipped with and spool 3 in the top of spring 5
The fixed frame 2 to match is additionally provided with the valve rod hole to match with the valve rod, the inner cavity of fixed frame 2 and connector 7 on fixed frame 2
Match.When liquid forward direction enters valve body 8, spool 3 will be mobile to 7 direction of connector under the pressure of liquid, and and convex annular
Gap is flowed out between edge, so that liquid can pass therethrough, and valve rod also moves through valve to fixed frame 2 with the movement of spool 3
Rod aperture avoids the movement for hindering spool 3.
Filter screen 11 is equipped in filter chamber, filter screen 11 can first be filtered liquid, then be liquid by connector 7 into
Enter corresponding pipeline, prevent the liquid with impurity from precipitating on pipeline or corresponding application apparatus, influences at that time using life.?
The inner wall of the valve body 8 of the liquid feeding side of filter screen 11 is equipped with the second card slot, and matched the is equipped in the second card slot
Two circlips 9, the second circlip 9 can block filter screen 11, prevent it from falling off from filter chamber
To sum up, by the way that connector 7 to be threaded on valve body 8, the connector 7 of different model can be replaced according to need, so as to even
Various sizes of adapter tube is connect, applicability is wide, in addition to this, moreover it is possible to control feed liquor flow, there is good using effect.Even if connecing
First 7 damage, the cost of replacement is also cheaper, saves the use cost of enterprise.