CN203272905U - Non-repetitive filling valve - Google Patents
Non-repetitive filling valve Download PDFInfo
- Publication number
- CN203272905U CN203272905U CN 201320340202 CN201320340202U CN203272905U CN 203272905 U CN203272905 U CN 203272905U CN 201320340202 CN201320340202 CN 201320340202 CN 201320340202 U CN201320340202 U CN 201320340202U CN 203272905 U CN203272905 U CN 203272905U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve rod
- refillable
- gripping member
- venting cavity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model discloses a non-repetitive filling valve comprising a valve body, wherein the valve body is provided with an axial through ventilation cavity, and an air inlet communicated with the ventilation cavity is arranged on the valve body; a valve rod capable of realizing reciprocating motion passes through the ventilation cavity, the valve rod is provided with a sealing part sealed together with the inner wall of the ventilation cavity, the sealing part is located above the air inlet, and a ventilation gap is formed between the valve rod arranged below the sealing part and the inner wall of the ventilation cavity; the ventilation cavity is also internally provided with a valve core which is located below the air inlet and the valve rod, the valve core is provided with an axial through air outlet communicated with the ventilation cavity, the air outlet is internally provided with a deformable holding part which is provided with a medium through hole and a holding opening, and the holding opening is provided with a sealing ball aligning to the lower end of the valve rod; and the air outlet arranged below the sealing ball is internally provided with an internal reducing segment with an internal reduced hole diameter, and the internal reducing segment can be sealed by the sealing ball. The non-repetitive filling valve is capable of realizing non-repetitive filling and safer in use.
Description
(1) technical field
The utility model relates to a kind of filling valve.
(2) background technique
When filling medium in steel cylinder, need to fill with filling valve.For fear of filling the repeated charging problem that produces because of carelessness after completing, need filling valve must not carry out repeated charging.Also there is no to realize in the prior art the filling valve of non-refillable.
(3) summary of the invention
In order to overcome the above-mentioned deficiency of existing filling valve, the utility model provides a kind of filling valve of realizing non-refillable.
The technical scheme in the invention for solving the technical problem is: a kind of non-refillable valve, comprise valve body, and described valve body has the venting cavity of axial perforation, and described valve body is provided with the suction port with described venting cavity UNICOM;
Be equipped with reciprocating valve rod in described venting cavity, described valve rod has the sealed department with described venting cavity inner wall sealing, described sealed department is positioned at the top of described suction port, has the ventilation space between the valve rod of described sealed department below and the inwall of described venting cavity;
Also be provided with spool in described venting cavity, described spool is positioned at the below of described suction port and valve rod, described spool that have an axial perforation with air outlet hole described venting cavity UNICOM, be provided with one deformable gripping member in described air outlet hole, described gripping member has medium port and one and holds opening, hold for described and set up ball sealer on opening, described ball sealer is aimed at the lower end of described valve rod;
Have the aperture to the section of inside contracting that inside contracts in the air outlet hole of described ball sealer below, the described section of inside contracting can be by described ball sealer shutoff;
Thereby downwards make ball sealer pass described gripping member in the top described ball sealer when described valve rod is descending, the descending stroke in the lower end of described valve rod is less than or equal to the lower end of described sealed department and the distance between suction port.
Further, described spool comprises valve core and valve core cap, and described gripping member is sandwiched between described valve core and valve core cap.
Further, between described valve core and valve core cap by ultrasonic welding.
The utility model also has following additional technical feature:
Described the frame ring that gripping member is a ring-type, described ring has by the outward extending gap of inner ring.Perhaps: described gripping member is a rubber parts.
The sealed department of described valve rod is provided with seal ring.
The head of described valve rod passes described valve body and is provided with handle.
Described suction port is provided with safety cover.
Also be provided with a rubber sheet gasket in described safety cover.
The utility model in use, by the suction port air inlet, gas flows out through the medium port of ventilation space, frame gripping member, the air outlet hole of spool from suction port.Fill complete after, valve rod is pushed away downwards, thereby pushes away under ball sealer by valve rod, get lodged on the section of inside contracting of air outlet hole after making ball sealer cross the frame gripping member, thereby the sealed ball sealing of the section of inside contracting is stifled, thereby effectively avoids repeated charging.
The beneficial effects of the utility model are: can realize non-refillable, use safer.
(4) description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of frame gripping member in embodiment one.
(5) embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
With reference to Fig. 1, Fig. 2, a kind of non-refillable valve comprises valve body 1, and described valve body 1 has the venting cavity of axial perforation, and described valve body 1 is provided with the suction port 2 with described venting cavity UNICOM.In the present embodiment, described suction port 2 is provided with safety cover 3, also is provided with a rubber sheet gasket 4 in described safety cover 3.
Be equipped with reciprocating valve rod 5 in described venting cavity, the head of described valve rod 5 passes described valve body and is provided with handle 6, convenient operation.Described valve rod 5 has the sealed department with described venting cavity inner wall sealing, and described sealed department is positioned at the top of described suction port 2, has the space 7 of ventilation between the valve rod below described sealed department and the inwall of described venting cavity.In the present embodiment, the sealed department of described valve rod is provided with seal ring 8, reaches sealing effect by seal ring 8.
Also be provided with spool 9 in described venting cavity, described spool is positioned at the below of described suction port 2 and valve rod 5, described spool 9 that have an axial perforation with air outlet hole 10 described venting cavity UNICOM, be provided with one deformable gripping member 11 in described air outlet hole 10, described gripping member 11 has medium port and one and holds opening, hold for described and set up ball sealer 12 on opening, described ball sealer 12 is aimed at the lower end of described valve rod 5; In the present embodiment, described spool comprises valve core 13 and valve core cap 14, and between described valve core 13 and valve core cap 14, by ultrasonic welding, described gripping member 11 is sandwiched between described valve core 13 and valve core cap 14.Frame gripping member 11 described in the present embodiment is the frame ring of a ring-type, and described ring has by the outward extending gap 15 of inner ring, and this gap 15 exists as the medium port, but also auxiliary frame gripping member 11 distortion of gap 15 when steel ball is pushed downwards simultaneously.Certainly the frame gripping member can be also other deformable pieces, as rubber parts etc.
Have the aperture to the section of inside contracting that inside contracts 16 in the air outlet hole of described ball sealer 12 belows, the described section of inside contracting 16 can be by described ball sealer 12 shutoff.
Thereby make ball sealer 12 pass described gripping member 11 in the top downwards described ball sealer 12 when described valve rod 5 is descending, the descending stroke in the lower end of described valve rod is less than or equal to the lower end of described sealed department and the distance between suction port 2.
In use, by suction port 2 air inlets, gas flows out through the medium port of ventilate space 7, frame gripping member 11, the air outlet hole 10 of spool from suction port 2.Fill complete after, valve rod 5 is pushed away downwards, thereby by valve rod 5, ball sealer is pushed away for 12 times, get lodged on the section of inside contracting 16 of air outlet hole after making ball sealer 12 cross the frame gripping member, thereby sealed ball 12 shutoff of the section of inside contracting 16, thereby effectively avoid repeated charging.
Claims (9)
1. a non-refillable valve, comprise valve body, and described valve body has the venting cavity of axial perforation, and described valve body is provided with the suction port with described venting cavity UNICOM;
It is characterized in that: be equipped with reciprocating valve rod in described venting cavity, described valve rod has the sealed department with described venting cavity inner wall sealing, described sealed department is positioned at the top of described suction port, has the ventilation space between the valve rod of described sealed department below and the inwall of described venting cavity;
Also be provided with spool in described venting cavity, described spool is positioned at the below of described suction port and valve rod, described spool that have an axial perforation with air outlet hole described venting cavity UNICOM, be provided with one deformable gripping member in described air outlet hole, described gripping member has medium port and one and holds opening, hold for described and set up ball sealer on opening, described ball sealer is aimed at the lower end of described valve rod;
Have the aperture to the section of inside contracting that inside contracts in the air outlet hole of described ball sealer below, the described section of inside contracting can be by described ball sealer shutoff;
Thereby downwards make ball sealer pass described gripping member in the top described ball sealer when described valve rod is descending, the descending stroke in the lower end of described valve rod is less than or equal to the lower end of described sealed department and the distance between suction port.
2. non-refillable valve as claimed in claim 1, it is characterized in that: described spool comprises valve core and valve core cap, described gripping member is sandwiched between described valve core and valve core cap.
3. non-refillable valve as claimed in claim 2 is characterized in that: between described valve core and valve core cap by ultrasonic welding.
4. non-refillable valve as claimed in claim 2 or claim 3, it is characterized in that: described the frame ring that gripping member is a ring-type, described ring has by the outward extending gap of inner ring.
5. non-refillable valve as claimed in claim 2 or claim 3, it is characterized in that: described gripping member is a rubber parts.
6. non-refillable valve as described in one of claim 1～3, it is characterized in that: the sealed department of described valve rod is provided with seal ring.
7. non-refillable valve as described in one of claim 1～3, it is characterized in that: the head of described valve rod passes described valve body and is provided with handle.
8. non-refillable valve as described in one of claim 1～3, it is characterized in that: described suction port is provided with safety cover.
9. non-refillable valve as claimed in claim 8, is characterized in that: also be provided with a rubber sheet gasket in described safety cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320340202 CN203272905U (en) | 2013-05-27 | 2013-05-27 | Non-repetitive filling valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320340202 CN203272905U (en) | 2013-05-27 | 2013-05-27 | Non-repetitive filling valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203272905U true CN203272905U (en) | 2013-11-06 |
Family
ID=49503317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320340202 Expired - Lifetime CN203272905U (en) | 2013-05-27 | 2013-05-27 | Non-repetitive filling valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203272905U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104358901A (en) * | 2014-10-16 | 2015-02-18 | 宁波富华阀门有限公司 | Non-refilled steel gas cylinder valve |
-
2013
- 2013-05-27 CN CN 201320340202 patent/CN203272905U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104358901A (en) * | 2014-10-16 | 2015-02-18 | 宁波富华阀门有限公司 | Non-refilled steel gas cylinder valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131106 |