CN215890648U - Valve core structure of gas cartridge valve - Google Patents
Valve core structure of gas cartridge valve Download PDFInfo
- Publication number
- CN215890648U CN215890648U CN202122250042.9U CN202122250042U CN215890648U CN 215890648 U CN215890648 U CN 215890648U CN 202122250042 U CN202122250042 U CN 202122250042U CN 215890648 U CN215890648 U CN 215890648U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve rod
- sealing
- upper valve
- sleeve
- 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.)
- Active
Links
Images
Landscapes
- Lift Valve (AREA)
Abstract
The utility model discloses a valve core structure of a gas cartridge valve, which comprises an upper valve rod and a lower valve rod connected with the upper valve rod through interference fit, wherein a sealing element is arranged between the upper valve rod and the lower valve rod, an upper valve sleeve is fixedly arranged on the outer wall of the upper valve rod, the upper valve sleeve is connected with a lower valve sleeve through clearance fit, a plurality of air outlet holes are formed in the side wall of the upper valve sleeve in a penetrating manner at uniform intervals on the circumference, an air inlet hole matched with the sealing element is formed in the center of the end surface of the lower valve sleeve in a penetrating manner, and the central axes of the upper valve rod, the lower valve rod, the upper valve sleeve and the lower valve sleeve are coincided. The utility model adopts the structural design of the balance valve core, ensures that the upper valve rod and the lower valve rod are stressed in balance in fluid, has small sealing force, adopts a plastic and metal linear sealing mode to seal between the sealing element and the lower valve sleeve, and has more reliable gas sealing compared with the traditional hard sealing.
Description
Technical Field
The utility model relates to the technical field of valve cores, in particular to a valve core structure of a gas cartridge valve.
Background
The cartridge valve is different from a common hydraulic control valve, the flow rate of the cartridge valve can reach 1000L/min, and the drift diameter can reach 200-250 mm. The valve core has simple structure, sensitive action and good sealing property. The hydraulic control valve has single function, mainly realizes the on-off of a liquid path, and can realize the control of the direction, pressure and flow of the oil liquid of the system when being combined with a common hydraulic control valve for use.
At present, cartridge valves on the market are mainly used for liquid or oil, are not specially applied to gas cartridge valves, mostly do not adopt a balance valve core, have large sealing force, adopt hard sealing in a sealing mode, have poor sealing effect on gas and have certain defects.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a valve core structure of a gas cartridge valve, which reduces the sealing force of the cartridge valve and realizes more reliable sealing of gas.
In order to solve the technical problem, the utility model provides a valve core structure of a gas cartridge valve, which comprises an upper valve rod and a lower valve rod connected with the upper valve rod through interference fit, wherein a sealing element is arranged between the upper valve rod and the lower valve rod, an upper valve sleeve is fixedly arranged on the outer wall of the upper valve rod, the upper valve sleeve is connected with a lower valve sleeve through clearance fit, a plurality of air outlet holes are formed in the side wall of the upper valve sleeve in a penetrating manner at uniform intervals on the circumference, an air inlet hole matched with the sealing element is formed in the center of the end surface of the lower valve sleeve in a penetrating manner, and the central axes of the upper valve rod, the lower valve rod, the upper valve sleeve and the lower valve sleeve are coincided.
Furthermore, go up valve sleeve lateral wall, lower valve barrel lateral wall and lower valve rod and keep away from the one end lateral wall of going up the valve rod all nestedly has first sealing washer.
Furthermore, a second sealing ring is nested on the side wall of one end, far away from the lower valve rod, of the upper valve rod.
Further, the sealing element is arranged in a frustum shape.
Compared with the prior art, the utility model at least has the following beneficial effects:
(1) the utility model adopts the structural design of the balance valve core, ensures that the upper valve rod and the lower valve rod are stressed in balance in fluid, and has small required sealing force;
(2) according to the utility model, the sealing element and the lower valve sleeve are sealed in a plastic and metal wire sealing mode, and the gas sealing is more reliable compared with the traditional hard sealing.
Drawings
FIG. 1 is an elevational view of the overall construction of the present invention;
FIG. 2 is a schematic structural diagram of the whole structure of the present invention;
fig. 3 is a schematic cross-sectional view taken along line a-a in fig. 2.
Detailed Description
The cartridge structure of the gas cartridge valve of the present invention will be described in more detail with reference to the schematic drawings, in which preferred embodiments of the present invention are shown, it being understood that those skilled in the art can modify the present invention described herein while still achieving the advantageous effects of the present invention. Accordingly, the following description should be construed as broadly as possible to those skilled in the art and not as limiting the utility model.
The utility model is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. Advantages and features of the present invention will become apparent from the following description and from the claims. It is to be noted that the drawings are in a very simplified form and are not to precise scale, which is merely for the purpose of facilitating and distinctly claiming the embodiments of the present invention.
As shown in fig. 1-3, an embodiment of the present invention provides a valve core structure of a gas cartridge valve, including an upper valve rod 1 and a lower valve rod 2 connected with the upper valve rod 1 through interference fit, a sealing member 3 is installed between the upper valve rod 1 and the lower valve rod 2, an upper valve sleeve 4 is fixedly installed on an outer wall of the upper valve rod 1, the upper valve sleeve 4 is connected with a lower valve sleeve 5 through clearance fit, a plurality of air outlet holes 6 are formed in a side wall of the upper valve sleeve 4 in a circumferential uniform interval manner, an air inlet hole 7 matched with the sealing member is formed in a center of an end face of the lower valve sleeve 5, and central axes of the upper valve rod 1, the lower valve rod 2, the upper valve sleeve 4 and the lower valve sleeve 5 coincide.
Go up 4 lateral walls of valve barrel, 5 lateral walls of lower valve barrel and keep away from down valve rod 2 the one end lateral wall of going up valve rod 1 all nestedly has first sealing washer 8. In this embodiment, the upper valve sleeve 4, the lower valve sleeve 5 and the lower valve rod 2 are all provided with the first sealing rings 8, so that the sealing performance between the upper valve sleeve 4, the lower valve sleeve 5 and the valve body and between the lower valve rod 2 and the valve body is ensured.
And a second sealing ring 9 is nested on the side wall of one end, far away from the lower valve rod, of the upper valve rod. In the present embodiment, the provision of the second seal 9 ensures the sealing property after the upper stem 1 and the upper sleeve 4 are attached.
The sealing element 3 is arranged in a frustum shape. In this embodiment, the sealing member 3 is matched with the lower edge of the air inlet 7 of the lower valve sleeve 5 to seal the air inlet 7, and the sealing member 3 is arranged in a frustum shape, so that the sealing performance of the sealing member 3 is improved.
While the preferred embodiments of the valve cartridge structure of the gas cartridge valve are illustrated below to clearly illustrate the contents of the present invention, it should be understood that the contents of the present invention are not limited to the following embodiments, and other modifications by conventional technical means of those skilled in the art are also within the scope of the idea of the present invention.
The embodiment of the utility model provides a use principle of a valve core structure of a gas cartridge valve, which comprises the following specific steps:
after the valve core is installed, the lower valve sleeve 5 has mobility, the sealing mode between the lower valve sleeve and the sealing element 3 adopts linear sealing, the sealing element 3 can be made of special engineering plastics such as PAI, PEEK, PCTFE and the like, the special engineering plastics have excellent physical properties such as thermal stability, wear resistance, creep resistance and the like, the durability of the sealing element 3 is ensured, the lower valve sleeve 5 is made of metal, the sealing effect on gas is better in a soft linear sealing mode formed by the plastics and the metal, particularly high-pressure hydrogen, meanwhile, as the central axes of the upper valve rod 1, the lower valve rod 2, the upper valve sleeve 4 and the lower valve sleeve 5 are superposed, the side wall of the upper valve sleeve 4 is provided with a plurality of air outlet holes 6 in a circumferential uniform interval penetrating manner, and the upper valve sleeve 4 and the lower valve sleeve 5 are installed in the valve body, the valve core formed by the upper valve rod 1, the lower valve rod 2, the upper valve sleeve 4 and the lower valve sleeve 5 is of a balanced valve core structure, the upper valve rod 1 and the lower valve rod 2 are stressed in balance in fluid, so that the sealing force required by the valve core is small, and the valve core is better suitable for gas.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the utility model. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (4)
1. The utility model provides a case structure of gaseous cartridge valve, its characterized in that, include the valve rod and with go up and be connected with lower valve rod through interference fit between the valve rod, go up the valve rod with install the sealing member down between the valve rod, it has last valve barrel to go up valve rod outer wall fixed mounting, it is connected with down the valve barrel through clearance fit to go up the valve barrel, it has a plurality of ventholes to go up the valve barrel lateral wall and is the even interval of circumference and run through and has seted up, down valve barrel terminal surface center run through seted up with sealing member assorted inlet port, go up valve rod, lower valve rod, go up the valve barrel and the coincidence of valve barrel the central axis down.
2. The valve core structure of the gas cartridge valve according to claim 1, wherein the side wall of the upper valve sleeve, the side wall of the lower valve sleeve and the side wall of the lower valve rod at the end far away from the upper valve rod are nested with first sealing rings.
3. The cartridge structure of a gas cartridge valve according to claim 1, wherein a second sealing ring is nested on a side wall of an end of the upper valve stem away from the lower valve stem.
4. The valve cartridge structure of a gas cartridge valve according to claim 1, wherein the sealing member is disposed in a frustum shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122250042.9U CN215890648U (en) | 2021-09-16 | 2021-09-16 | Valve core structure of gas cartridge valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122250042.9U CN215890648U (en) | 2021-09-16 | 2021-09-16 | Valve core structure of gas cartridge valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215890648U true CN215890648U (en) | 2022-02-22 |
Family
ID=80348638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122250042.9U Active CN215890648U (en) | 2021-09-16 | 2021-09-16 | Valve core structure of gas cartridge valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215890648U (en) |
-
2021
- 2021-09-16 CN CN202122250042.9U patent/CN215890648U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107084258A (en) | To folder Fluorine-lined ball valve | |
| CN102996792A (en) | Metal seal ring | |
| CN215890648U (en) | Valve core structure of gas cartridge valve | |
| US3561472A (en) | Check valve with restricted backflow | |
| CN208364811U (en) | A kind of butterfly valve seal structure | |
| CN209213066U (en) | A kind of Multifunction ball valve | |
| CN210661608U (en) | Novel back pressure valve with porous inlet and outlet structure | |
| ES2901789T3 (en) | Ball valve | |
| CN211779047U (en) | High-temperature back pressure valve | |
| CN211649241U (en) | Ultrahigh pressure back pressure valve | |
| CN203614826U (en) | Stacked unidirectional valve | |
| CN215371129U (en) | One-way valve | |
| CN214889110U (en) | H-shaped one-way valve | |
| CN110608310A (en) | Novel back pressure valve with porous inlet and outlet structure | |
| CN206816862U (en) | To pressing from both sides Fluorine-lined ball valve | |
| CN211371308U (en) | High-sealing-performance sealing pressure ring | |
| CN201007366Y (en) | Fluoroplastic full-lining stop valve special for alkali-chloride | |
| CN101225885A (en) | Fluoroplastics whole lining stop valve special for alkali-chloride | |
| CN212775641U (en) | Sealing device for center line butterfly valve | |
| CN110319243A (en) | Control valve | |
| CN213900213U (en) | Valve connector | |
| CN209705298U (en) | A kind of surge reliever | |
| CN220268459U (en) | Novel butterfly valve plate | |
| CN216519635U (en) | Anti-corrosion butterfly valve | |
| CN220060650U (en) | One-way valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |