CN201897003U - Pressing cap used for cylinder valve - Google Patents
Pressing cap used for cylinder valve Download PDFInfo
- Publication number
- CN201897003U CN201897003U CN2010206148724U CN201020614872U CN201897003U CN 201897003 U CN201897003 U CN 201897003U CN 2010206148724 U CN2010206148724 U CN 2010206148724U CN 201020614872 U CN201020614872 U CN 201020614872U CN 201897003 U CN201897003 U CN 201897003U
- Authority
- CN
- China
- Prior art keywords
- pressure cap
- cylinder valve
- pressing cap
- plane
- cap
- 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 - Fee Related
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- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The utility model discloses a pressing cap used for a cylinder valve. The pressing cap (1) is column-shaped, the upper end of the pressing cap (1) is a polygonal gland cap (1.1), external threads (1.2) are arranged on the outer surface at the middle part of the pressing cap (1), a plane surface (1.3) propped against an inner end surface of a valve body (2) of the cylinder valve is arranged at the bottom end of the pressing cap(1), and an annular lug boss (1.4) used for reducing the damage on a sealing surface is arranged on the plane surface (1.3.). The possibility of damage on the sealing surface can be reduced when the pressing cap drops onto the ground, so that the integral air tightness of the cylinder valve can be well guaranteed, and possibility of safety hazard can be greatly reduced.
Description
Technical field
The utility model relate to a kind of gas cylinder fill or using process in start-stop device, specifically be a kind of cylinder valve pressure cap.
Background technique
The cylinder valve of prior art generally is made up of valve body, spool, valve rod, pressure cap, handwheel etc.Wherein, pressure cap is component in the cylinder valve, and its concrete structure is: pressure cap is cylindricality, its upper end is a polygonal, and the outer surface at described pressure cap middle part is provided with outside thread, and the end face of described pressure cap bottom is a plane, end face close-fitting in this plane and the cylinder valve valve body seals.There is following defective in the cylinder valve of said structure with pressure cap in the using process of reality: the shape of pressure cap is cylindricality, therefore pressure cap is easy to be touched and tumbles on ground in the process of assembling cylinder valve, and because the plane of the pressure cap bottom of prior art is exposed as sealing surface, when therefore landing, the sealing surface of pressure cap is easy to damage, thereby influence the tightness of whole cylinder valve, make this product have potential safety hazard.
The model utility content
The technical problems to be solved in the utility model is, overcomes the defective of above prior art, and a kind of not cylinder valve pressure cap of easy damaged sealing surface that drops when ground is provided.
The technical solution of the utility model is, a kind of cylinder valve pressure cap is provided, described pressure cap is cylindricality, the upper end of described pressure cap is a polygonal, the outer surface at described pressure cap middle part is provided with outside thread, the bottom of described pressure cap is provided with a plane that offsets with the cylinder valve interior edge face, and described plane is provided with an annular boss that can reduce sealing face damage.
After adopting above structure, the utility model compared with prior art has the following advantages:
The utility model cylinder valve is provided with annular boss with the plane of pressure cap, this boss be arranged so that the maximum possible that pressure cap touches earlier is an annular boss when landing, it also might be a jiao of plane, therefore the setting of this annular boss can greatly reduce the possibility of pressure cap sealing surface damaged, thereby guaranteed the tightness of whole cylinder valve well, made this product exist the possibility of potential safety hazard to reduce greatly.
As improvement, described annular boss and described plane are solidified as a whole.Therefore being connected firmly of this annular boss and plane, its functional reliability is higher.
Description of drawings
Fig. 1 is the structural representation that cylinder valve is used pressure cap among the embodiment 1.
Fig. 2 is that cylinder valve is installed on structural representation on the valve body with pressure cap among the embodiment 1.
Fig. 3 is the structural representation that cylinder valve is used pressure cap among the embodiment 2.
Fig. 4 is that cylinder valve is installed on structural representation on the valve body with pressure cap among the embodiment 2.
Shown in the figure 1, pressure cap, 1.1, polygonal gland cap, 1.2, outside thread, 1.3, the plane, 1.4, annular boss, 2, valve body.
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
As Fig. 1, Fig. 2, Fig. 3, shown in Figure 4, a kind of cylinder valve pressure cap of the utility model, it belongs to one of common parts in the cylinder valve.Described pressure cap 1 is cylindricality, the upper end of described pressure cap 1 is a polygonal gland cap 1.1, the outer surface at described pressure cap 1 middle part is provided with outside thread 1.2, the bottom of described pressure cap 1 is provided with a plane 1.3 that offsets with the cylinder valve interior edge face, described plane 1.3 is provided with an annular boss 1.4 that can reduce sealing face damage, this annular boss 1.4 can be provided with near the pressure cap through-hole side, as shown in Figure 1.This annular boss 1.4 also can be provided with near pressure cap outside thread side, as shown in Figure 3.
Described plane 1.3 is provided with an annular boss 1.4 that can reduce sealing face damage and is meant: described annular boss 1.4 is fixed on the described plane 1.3.
Described annular boss 1.4 is solidified as a whole with described plane 1.3.
During use, pressure cap is screwed on cylinder valve valve body 2, the interior edge face drive fit of plane 1.3 and valve body 2 is extended an annular boss 1.4 on the pressure cap sealing surface, and this annular boss 1.4 places the cavity between valve body 2 and valve rod or is arranged in the interior circular groove of valve body.
Below only be described, but can not be interpreted as it is restriction claim with regard to most preferred embodiment of the present utility model.The utility model is not limited only to above embodiment, and its concrete structure allows variation.In every case the various variations of being done in the protection domain of the utility model independent claims are all in protection domain of the present utility model.
Claims (2)
1. cylinder valve pressure cap, described pressure cap (1) is cylindricality, the upper end of described pressure cap (1) is a polygonal gland cap (1.1), the outer surface at described pressure cap (1) middle part is provided with outside thread (1.2), the bottom of described pressure cap (1) is provided with a plane (1.3) that offsets with cylinder valve valve body (2) interior edge face, it is characterized in that: described plane (1.3) are provided with an annular boss (1.4) that can reduce sealing face damage.
2. cylinder valve pressure cap according to claim 1 is characterized in that: described plane (1.3) are provided with an annular boss (1.4) that can reduce sealing face damage and are meant: described annular boss (1.4) is fixed on the described plane (1.3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206148724U CN201897003U (en) | 2010-11-10 | 2010-11-10 | Pressing cap used for cylinder valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206148724U CN201897003U (en) | 2010-11-10 | 2010-11-10 | Pressing cap used for cylinder valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201897003U true CN201897003U (en) | 2011-07-13 |
Family
ID=44254910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206148724U Expired - Fee Related CN201897003U (en) | 2010-11-10 | 2010-11-10 | Pressing cap used for cylinder valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201897003U (en) |
-
2010
- 2010-11-10 CN CN2010206148724U patent/CN201897003U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110713 Termination date: 20141110 |
|
| EXPY | Termination of patent right or utility model |