CN203297632U - Non-refillable valve for steel cylinder - Google Patents
Non-refillable valve for steel cylinder Download PDFInfo
- Publication number
- CN203297632U CN203297632U CN2013202468360U CN201320246836U CN203297632U CN 203297632 U CN203297632 U CN 203297632U CN 2013202468360 U CN2013202468360 U CN 2013202468360U CN 201320246836 U CN201320246836 U CN 201320246836U CN 203297632 U CN203297632 U CN 203297632U
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- CN
- China
- Prior art keywords
- valve
- valve rod
- valve body
- bottom sealing
- refillable
- 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 relates to a valve, in particular to a non-refillable valve for a steel cylinder. The non-refillable valve for the steel cylinder comprises a valve body, an upper valve rod, a lower valve rod and a lower seal seat. An air passage penetrating top and bottom is arranged in a valve body cavity; an annular partition plate used for sealing is also arranged in the valve body cavity; the center of the partition plate is a seal bore; the lower valve rod and the lower seal seat are respectively arranged in the valve body cavity; the bottom part of the lower valve rod is provided with a valve core matched with the lower seal seat; the lower seal seat is hermetically connected with the bottom part of the valve body; one side of the valve body is provided with an air inlet; the contact surface of the annular partition plate and the upper valve rod is an angular surface; a seal ring hermetically connected with the lower seal seat is sheathed outside the valve core. According to the non-refillable valve for the steel cylinder provided by the utility model, structures of several seal contact surfaces are reinforced on the basis of a traditional valve, and therefore, a seal effect is enhanced.
Description
Technical field
The utility model relates to a kind of valve, particularly a kind of non-refillable valve for steel welded cylinder.
Background technique
Steel cylinder is divided into disposable steel cylinder and the large class of steel cylinder two of repeated charging repeatedly,, for disposable steel cylinder, does not allow list marketing again after repeated charging, causes danger avoiding.Therefore, on existing disposable steel cylinder, Nonrepetitive filling valve is installed, prevents that the lawless person from carrying out repeated charging to steel cylinder.And existing various Nonrepetitive filling valve, due to structural feature, sealing is still undesirable, therefore need to make improvements.
The model utility content
The purpose of this utility model is to provide that a kind of sealing is good, the simple non-refillable valve for steel welded cylinder of preparation process.
The technological scheme that its technical problem that solves the utility model adopts is:
A kind of non-refillable valve for steel welded cylinder, comprise valve body, upper valve rod, lower valve rod and bottom sealing socket, be provided with the air flue of up/down perforation in the valve body chamber, also be provided with the toroidal membrane for sealing in the valve body chamber, the dividing plate center is closed hole, lower valve rod and bottom sealing socket all are located in the valve body chamber, the lower valve rod bottom arranges the spool that coordinates with bottom sealing socket, bottom sealing socket is connected with the valve body sealed bottom, valve body one side is provided with suction port, the surface of contact of described toroidal membrane and upper valve rod is inclined-plane, and spool is equipped with outward with bottom sealing socket and forms the seal ring that is tightly connected.
As preferably, described upper valve rod main body is cylindrical body.Cylindrical body is convenient to processing.
As preferably, the free end of described upper valve rod main body is provided with chamfering, and this chamfering is inclined-plane ringwise, and the inclined-plane that forms with the upper-end surface of described toroidal membrane coordinates, the formation sealing surface.The bottom of upper valve rod and the sealing surface between valve body have been made taper, have increased the area of contact of upper valve rod and valve body, and sealing effect is better.
As preferably, the surface of contact of bottom sealing socket and described seal ring is conical surface.The sealing surface of bottom sealing socket and described seal ring is made taper, with the area of contact of seal ring, strengthens, and sealing effect is better.
, as preferably, have mounting hole on the lower end surface of bottom sealing socket.Mounting hole is to facilitate special tool that bottom sealing socket is installed on upper bottle body.
As preferably, the center, lower end surface of bottom sealing socket has " one " font groove." one " font groove is can operate on and screw with a word when for bottom sealing socket, being installed to upper bottle body, plays better fixation.
The beneficial effects of the utility model are: non-refillable valve for steel welded cylinder of the present utility model, strengthened the structure of several places sealing contact surface on existing valvular basis, as between upper valve rod and valve body, between lower valve rod and bottom sealing socket etc., the inclined-plane contact of tapering is arranged by original simple flat surface contact instead, be nested with seal ring outside spool, strengthened sealing effect.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of the utility model bottom sealing socket;
Fig. 3 is the structural representation of looking up of the utility model bottom sealing socket.
In figure: 1, upper valve rod, 11, valve handle, 12, the upper valve rod main body, 13, toroidal membrane, 2, safety clip, 3, valve body, 4, suction port, 5, lower valve rod, 6, seal ring, 7, spool, 8, bottom sealing socket, 81, mounting hole, 82, " one " font groove.
Embodiment
Below by specific embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is described in further detail.Should be appreciated that enforcement of the present utility model is not limited to the following examples, any pro forma accommodation and/or change that the utility model is made all will fall into the utility model protection domain.
Embodiment:
as Fig. 1, Fig. 2 and a kind of non-refillable valve for steel welded cylinder shown in Figure 3, comprise valve body 3, upper valve rod 1, lower valve rod 5 and bottom sealing socket 8, be provided with the air flue of up/down perforation in the valve body chamber, also be provided with the toroidal membrane for sealing in the valve body chamber, the dividing plate center is closed hole, lower valve rod and bottom sealing socket all are located in the valve body chamber, the lower valve rod bottom arranges the spool 7 that coordinates with bottom sealing socket, bottom sealing socket is connected with the valve body sealed bottom, valve body one side is provided with suction port 4, the surface of contact of described toroidal membrane and upper valve rod is inclined-plane, outer being equipped with bottom sealing socket of spool 7 forms the seal ring 6 that is tightly connected.
Upper valve rod is comprised of valve handle 11 and upper valve rod main body 12, and the upper valve rod main body is cylindrical body, is convenient to processing.The free end of upper valve rod main body is provided with chamfering, and this chamfering is inclined-plane ringwise, and the inclined-plane that forms with the upper-end surface of described toroidal membrane coordinates, and forms sealing surface.Be that the bottom of upper valve rod and the sealing surface between valve body have been made taper, increased the area of contact of upper valve rod and valve body, sealing effect is better.
The surface of contact of bottom sealing socket and described seal ring is conical surface.The sealing surface of bottom sealing socket and described seal ring is made taper, with the area of contact of seal ring, strengthens, and sealing effect is better.The both sides, lower end surface of bottom sealing socket respectively have a mounting hole 81, and mounting hole is to facilitate special tool that bottom sealing socket is installed on upper bottle body.The center, lower end surface of bottom sealing socket has " one " font groove 82." one " font groove is can operate on and screw with a word when for bottom sealing socket, being installed to upper bottle body, plays better fixation.
While dispatching from the factory, for the sake of security, safety clip 2 is installed between upper valve rod and valve body, to prevent the leakage of gas in steel cylinder.Bottom sealing socket is used for being tightly connected with steel cylinder.
Above-described embodiment is a kind of better scheme of the present utility model, not the utility model is done any pro forma restriction, also has other variant and remodeling under the prerequisite that does not exceed the technological scheme that claim puts down in writing.
Claims (7)
1. non-refillable valve for steel welded cylinder, comprise valve body, upper valve rod, lower valve rod and bottom sealing socket, be provided with the air flue of up/down perforation in the valve body chamber, also be provided with the toroidal membrane for sealing in the valve body chamber, the dividing plate center is closed hole, lower valve rod and bottom sealing socket all are located in the valve body chamber, the lower valve rod bottom arranges the spool that coordinates with bottom sealing socket, bottom sealing socket is connected with the valve body sealed bottom, valve body one side is provided with suction port, it is characterized in that: the surface of contact of described toroidal membrane and upper valve rod is inclined-plane, spool is equipped with outward with bottom sealing socket and forms the seal ring that is tightly connected.
2. non-refillable valve for steel welded cylinder according to claim 1, it is characterized in that: described upper valve rod main body is cylindrical body.
3. non-refillable valve for steel welded cylinder according to claim 1 and 2, it is characterized in that: the free end of described upper valve rod main body is provided with chamfering, and this chamfering is inclined-plane ringwise, and the inclined-plane that forms with the upper-end surface of described toroidal membrane coordinates, the formation sealing surface.
4. non-refillable valve for steel welded cylinder according to claim 1 and 2, it is characterized in that: the surface of contact of bottom sealing socket and described seal ring is conical surface.
5. non-refillable valve for steel welded cylinder according to claim 3, it is characterized in that: the surface of contact of bottom sealing socket and described seal ring is conical surface.
6. non-refillable valve for steel welded cylinder according to claim 1 and 2, is characterized in that: have mounting hole on the lower end surface of bottom sealing socket.
7. non-refillable valve for steel welded cylinder according to claim 1 and 2, it is characterized in that: the center, lower end surface of bottom sealing socket has " one " font groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202468360U CN203297632U (en) | 2013-05-09 | 2013-05-09 | Non-refillable valve for steel cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202468360U CN203297632U (en) | 2013-05-09 | 2013-05-09 | Non-refillable valve for steel cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203297632U true CN203297632U (en) | 2013-11-20 |
Family
ID=49573640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202468360U Expired - Lifetime CN203297632U (en) | 2013-05-09 | 2013-05-09 | Non-refillable valve for steel cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203297632U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104089056A (en) * | 2014-07-22 | 2014-10-08 | 浙江金象科技有限公司 | Novel non-repeated filling valve and obtaining method thereof |
| CN106678433A (en) * | 2017-02-22 | 2017-05-17 | 浙江金象科技有限公司 | Double-seal non-repeated filling valve and realization method thereof |
-
2013
- 2013-05-09 CN CN2013202468360U patent/CN203297632U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104089056A (en) * | 2014-07-22 | 2014-10-08 | 浙江金象科技有限公司 | Novel non-repeated filling valve and obtaining method thereof |
| CN106678433A (en) * | 2017-02-22 | 2017-05-17 | 浙江金象科技有限公司 | Double-seal non-repeated filling valve and realization method thereof |
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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: 20131120 |