CN206329745U - A kind of safe non-refillable valve - Google Patents
A kind of safe non-refillable valve Download PDFInfo
- Publication number
- CN206329745U CN206329745U CN201621102827.4U CN201621102827U CN206329745U CN 206329745 U CN206329745 U CN 206329745U CN 201621102827 U CN201621102827 U CN 201621102827U CN 206329745 U CN206329745 U CN 206329745U
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- China
- Prior art keywords
- venting cavity
- valve
- ball sealer
- valve rod
- joint
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Abstract
A kind of safe non-refillable valve, including valve body, valve body have venting cavity, and valve body is provided with air inlet；Reciprocating valve rod is equipped with venting cavity, valve rod, which has between the sealing with venting cavity inner wall sealing, the inwall of valve rod and venting cavity of the sealing position below the top of air inlet, sealing, has ventilation space;Be additionally provided with joint below venting cavity, joint have axially through the venthole with venting cavity UNICOM, be also located at sealed core in venting cavity including one, sealed core includes being positioned at the circular cylinder in venting cavity and the ball sealer in ring-shaped cylinder body；Circular cylinder is provided with some axial arranged prerotation vanes, and ball sealer is held in ring-shaped cylinder body；Valve rod is just to ball sealer；There is the seal of back taper corresponding with ball sealer, seal can be blocked by ball sealer in the venthole of joint.The utility model is simple in construction, and ball sealer simply can be fixed effectively.
Description
Technical field
The utility model is related to a kind of filling valve.
Background technology
When filling medium into steel cylinder, it is necessary to be filled using filling valve.In order to avoid after completion is filled
The repeated charging problem produced by carelessness is, it is necessary to which filling valve must not carry out repeated charging.In order to solve this problem, the patent No.
A kind of non-refillable valve is provided for 201320340202.1 utility model patent, it under valve rod by being about to a sealing
Pushed up under ball, so as to realize the sealing after the completion of filling by ball sealer.It also has the disadvantage that：Ball seal is not thorough,
And spheroid in filled media impingement easily rolls that sealing can not be realized.
The content of the invention
In order to overcome the above-mentioned deficiency of existing non-refillable valve, the utility model provides a kind of safety of better tightness
Non-refillable valve.
The technical scheme in the invention for solving the technical problem is：
A kind of safe non-refillable valve, including valve body, described valve body have axially through venting cavity, described valve
Body is provided with the air inlet with described venting cavity UNICOM；
Reciprocating valve rod is equipped with described venting cavity, described valve rod has and described ventilation cavity wall
The sealing of sealing, the valve rod of described sealing position below the top of the air inlet, the sealing and the ventilation
There is airspace between the inwall of chamber；
Be additionally provided with joint below described venting cavity, described joint have axially through with described venting cavity UNICOM
Venthole；
It is characterized in that：Also include a sealed core being located in the venting cavity, the sealed core is described including being positioned at
Circular cylinder in venting cavity and the ball sealer in the ring-shaped cylinder body；Described circular cylinder is provided with some
Axial arranged prerotation vane, the ball sealer is held in described ring-shaped cylinder body.Described prerotation vane has three, along circle
Week is uniformly distributed.
Described valve rod is just to described ball sealer；Have in the venthole of the joint corresponding with described ball sealer
The seal of back taper, the seal can be blocked by described ball sealer.
Further, the upper end of the valve rod, which is provided between handle, the upper surface of the handle and valve body, is provided with safety buckle.
Further, the lower end of the venting cavity is provided with ring cover, and the ring cover includes epimere and hypomere, and the epimere is stretched
Enter in venting cavity, described circular cylinder is located at the top of the epimere of the ring cover so as to which circular cylinder can be by the epimere
Accept, the hypomere is one section of bulge loop, and the hypomere is held out against in the lower surface of venting cavity by described joint.
Further, described joint is connected by screw thread and described venting cavity, and the bulge loop is fixed under venting cavity
Side.
When in use, by inlet charge, gas is from air inlet by ventilation space, the outlet of joint for the utility model
Flow out in hole.After filling and finishing, valve rod is pushed down on, valve rod promotes ball sealer, ball sealer is departed from the frame on circular cylinder
Gripping member and drop, the ring cover of circular cylinder and venting cavity lower end is accepted, and is stayed in venting cavity, ball sealer falls into back taper
In seal, sealing is formed, so as to be prevented effectively from repeated charging.
The beneficial effects of the utility model are：Structure is simpler, and ball sealer simply can be fixed effectively.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
The present invention is described in further detail with reference to the accompanying drawings and detailed description.
With reference to accompanying drawing 1, a kind of safe non-refillable valve, including valve body 1, described valve body 1 have axially through it is logical
Air cavity, described valve body 1 is provided with the air inlet with described venting cavity UNICOM；
Be equipped with reciprocating valve rod 3 in described venting cavity, described valve rod 3 have with described venting cavity
The sealing of wall sealing, the valve rod of described sealing position below the top of the air inlet, the sealing with it is described logical
There is ventilation space between the inwall of air cavity；
Be additionally provided with joint 4 below described venting cavity, described joint 4 have axially through join with described venting cavity
Logical venthole；
Also include a sealed core 5 being located in the venting cavity, the sealed core 5 includes being positioned in the venting cavity
Circular cylinder 6 and the ball sealer 7 in circular cylinder 5；Described circular cylinder 6 is provided with some axial arranged
Prerotation vane 8, the ball sealer 7 is held in the circular cylinder 6.The prerotation vane 8 has three, circumferentially uniform point
Cloth, the prerotation vane simple structure of angular distribution, so that effectively fixing seal ball.
The circular cylinder 6 is compressed after being accepted with ring cover 9 by joint, so as to be positioned in the venting cavity.Institute
Stating ring cover 9 includes epimere and hypomere, and the epimere is stretched into venting cavity, and described circular cylinder 6 is located at the ring cover 9
The top of epimere can be accepted by the epimere so as to circular cylinder 6, the hypomere is one section of bulge loop, and the hypomere is connect by described
First 4 hold out against in the lower surface of venting cavity.Described joint 4 is connected by screw thread and described venting cavity, and the bulge loop is fixed
Below venting cavity.
Described valve rod 2 is just to described ball sealer 7；The venthole of the joint 4 has corresponding with the ball sealer 7
The seal of back taper, the seal can be blocked by described ball sealer 7.
When in use, by inlet charge, gas is from air inlet by ventilation space, the venthole outflow of joint.
Fill after finishing, valve rod 2 is pushed down on, valve rod 2 promotes ball sealer 7, ball sealer 7 is departed from the frame gripping member on circular cylinder 6
And drop, circular cylinder 6 and the ring cover 9 of venting cavity lower end are accepted, and are stayed in venting cavity, and ball sealer 7 falls into back taper
In seal, sealing is formed, so as to be prevented effectively from repeated charging.Circular cylinder is fixed in venting cavity by ring cover, is had
Effect prevents that it from dropping, and other modes can also be used to fix circular cylinder in specific implementation process.
In the present embodiment, the upper end of the valve rod 3, which is provided between handle 8, the upper surface of the handle 8 and valve body 1, to be provided with
Safety buckle 2.Before being filled and when filling, the presence of safety buckle 2 make it that valve rod 1 will not be pushed away under accident；Filling completion
After remove safety buckle 2, you can carry out valve rod 3 lower promotion make.
Claims (5)
1. a kind of safe non-refillable valve, including valve body, described valve body have axially through venting cavity, described valve body
Provided with the air inlet with described venting cavity UNICOM；
Reciprocating valve rod is equipped with described venting cavity, described valve rod has and described venting cavity inner wall sealing
Sealing, the valve rod of described sealing position below the top of the air inlet, the sealing and the venting cavity
There is airspace between inwall；
Be additionally provided with joint below described venting cavity, described joint have axially through go out with described venting cavity UNICOM
Stomata；
It is characterized in that：Also include a sealed core being located in the venting cavity, the sealed core includes being positioned at the ventilation
Circular cylinder in chamber and the ball sealer in the ring-shaped cylinder body；Described circular cylinder is provided with some axial directions
The prerotation vane of arrangement, the ball sealer is held in described ring-shaped cylinder body；
Described valve rod is just to described ball sealer；
There is the seal of back taper corresponding with described ball sealer, the seal can be by institute in the venthole of the joint
The ball sealer closure stated.
2. safe non-refillable valve as claimed in claim 1, it is characterised in that：Described prerotation vane has three, circumferentially
It is uniformly distributed.
3. safe non-refillable valve as claimed in claim 1, it is characterised in that：The upper end of the valve rod is provided with handle, institute
State and safety buckle is provided between handle and the upper surface of valve body.
4. safe non-refillable valve as claimed in claim 1, it is characterised in that：The lower end of the venting cavity is provided with annular
Lid, the ring cover includes epimere and hypomere, and the epimere is stretched into venting cavity, and described circular cylinder is located at the annular
The top of the epimere of lid can be accepted so as to circular cylinder by the epimere, and the hypomere is one section of bulge loop, and the hypomere is by described
Joint is held out against in the lower surface of venting cavity.
5. safe non-refillable valve as claimed in claim 4, it is characterised in that：Described joint passes through screw thread and described
Venting cavity is connected, and the bulge loop is fixed on below venting cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621102827.4U CN206329745U (en) | 2016-10-09 | 2016-10-09 | A kind of safe non-refillable valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621102827.4U CN206329745U (en) | 2016-10-09 | 2016-10-09 | A kind of safe non-refillable valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206329745U true CN206329745U (en) | 2017-07-14 |
Family
ID=59287382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621102827.4U Active CN206329745U (en) | 2016-10-09 | 2016-10-09 | A kind of safe non-refillable valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206329745U (en) |
-
2016
- 2016-10-09 CN CN201621102827.4U patent/CN206329745U/en active Active
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| GR01 | Patent grant |