CN201651458U - Safety valve - Google Patents
Safety valve Download PDFInfo
- Publication number
- CN201651458U CN201651458U CN2010201647548U CN201020164754U CN201651458U CN 201651458 U CN201651458 U CN 201651458U CN 2010201647548 U CN2010201647548 U CN 2010201647548U CN 201020164754 U CN201020164754 U CN 201020164754U CN 201651458 U CN201651458 U CN 201651458U
- Authority
- CN
- China
- Prior art keywords
- valve
- safety
- safety valve
- top cover
- guide rod
- 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 safety valve, including a valve body formed by assembling a valve seat and a top cover, and a protective hood arranged outside the valve body, wherein the edge of the protective hood is bended to the valve seat from the top cover to form an umbrella shape. The protective hood of the safety valve is capable of preventing rainwater and the like from corrupting valve port or seeping in the safety valve to besmirch the valve port or the inner part of the safety valve. The valve cavity of the safety valve is provided with a sheet-shaped septum to divide the valve cavity into two chambers, so as to protect a spring and the rest mechanical structure arranged in the top cover from powder dust to affect the mechanical property, such that stable and reliable operating status and releasing flux of the safety valve may be ensured.
Description
Technical field
The utility model relates to a kind of safety valve, particularly a kind of powder tank car safety valve.
Background technique
Safety valve of the prior art comprises a valve seat, one top cover, this valve seat and this top cover assembling back form the valve pocket of safety valve, are provided with guide rod in this valve pocket, one end of the close valve seat of this guide rod is provided with a valve plate, be positioned on the guide rod this valve plate above be provided with a spring.At daily powder tank car in transit, rainwater appears in regular meeting to be trickled down in relief valve port, causes caking or blocking phenomenon.Owing to dust in the transportation process can enter in the valve body of safety valve, reduce the performance of mechanical structure in the safety valve in addition, influence the release flow of safety valve.
The model utility content
The technical problems to be solved in the utility model be for overcome safety valve of the prior art be soaked with rain the back valve port cause the caking result in blockage, and then influence safety valve working stability and the defective that discharges flow, a kind of beveled structure safety valve that is used for powder tank car is provided.
The utility model solves above-mentioned technical problem by following technical proposals:
A kind of safety valve; it comprises a valve body that is assembled by a valve seat and a top cover, and its characteristics are that this safety valve comprises that also one is arranged on the outer safety cover of this valve body; this safety cover is positioned at the intersection near this valve seat and this top cover, the edge of this safety cover from this top cover to this valve seat bending.
Wherein, the cross section of this safety cover is the n type.
Wherein, this safety cover and this valve seat are formed in one.
Wherein, this safety valve comprises that also one is arranged on the guide rod in this valve body, this guide rod is provided with a valve plate near an end of this valve seat, be positioned on this guide rod this valve plate above also be provided with a bottom guide, be provided with a sheet barrier film between this bottom guide and this valve plate, the edge of this plate diaphragm is fixed on the inwall of this valve body, and this guide rod vertical fixing is in the center of this plate diaphragm.
Wherein, this guide rod vertically passes this plate diaphragm, and the edge of this plate diaphragm presses on the inwall of this top cover.
Wherein, be provided with a Sealing between the core of this plate diaphragm and this guide rod.
Wherein, the position near this plate diaphragm is provided with another Sealing between this top cover and this valve seat.
Wherein, this plate diaphragm adopts silica gel material to make.
In the utility model, but above-mentioned optimum condition combination in any on the basis that meets related domain general knowledge promptly gets each preferred embodiments of the utility model.
Positive progressive effect of the present utility model is: the safety valve in the utility model is avoided rainwater contact valve port or is flowed into valve inner by the outer safety cover of valve body, stops rainwater and infiltrates safety valve, causes the cement flour caking phenomenon at valve port and inside.Further, in the valve pocket of safety valve, adopt plate diaphragm, valve pocket is divided into two space, thereby protection is arranged in the mechanical structure (spring structure) of top cover, makes it to avoid the intrusion of dust, cause mechanical property to descend, to guarantee the release flow of safety valve.
Description of drawings
Fig. 1 is the stereogram of the safety valve among the utility model one embodiment.
Fig. 2 is along the sectional view of A-A cutting line left-half structure among Fig. 1.
Embodiment
Enumerate preferred embodiment below, and come the clearer the utility model that intactly illustrates in conjunction with the accompanying drawings.
As shown in Figure 1; safety valve in the utility model includes a valve body 1 that is formed by valve seat 11 and top cover 12 assembling backs; be provided with a safety cover 2 in the periphery of valve body 1; this safety cover 2 is positioned at the intersection near this valve seat 11 and this top cover 12; the edge of safety cover 2 by top cover 12 to valve seat 11 direction bendings; thereby form a protection structure that is similar to umbrella shape, the cross section of this safety cover is the n type as shown in the figure.The valve seat 12 of safety valve is located in this safety cover 2, prevents that the top rainwater from falling into valve port, thereby causes the cement flour caking at valve port place to stop up valve port.
As shown in Figure 2, the utility model also comprises a plate diaphragm 3 that adopts silica gel material to make between the valve plate 13 of safety valve and bottom guide 14, and wherein this valve plate 13 is fixed on the lower end of the guide rod 15 of safety valve, and this guide rod 15 vertically passes this bottom guide 14.Be positioned on the guide rod 15 bottom guide 14 above be arranged with a spring 16.This guide rod 15 is vertically located in this plate diaphragm 3 centers, the edge of plate diaphragm 3 is fixed on the inwall of valve body 1, and these plate diaphragm 3 intermediate portions are along with the fore and aft motion of guide rod 15 is done in the same way to-and-fro motion between this bottom guide 14 and valve plate 13, guaranteeing that materials such as dust can not enter is provided with space, spring 16 place, guarantee the mechanical property of spring 16, prolong its working life, and make the release flow of safety valve be in steady state.Preferable, this plate diaphragm 3 is equipped with Sealing 4 with the part that this guide rod 15 contacts with this valve body 1 and is sealed, thereby further guarantees the mechanical property of safety valve internal structure.
Though more than described embodiment of the present utility model, but those skilled in the art is to be understood that, these only illustrate, and under the prerequisite that does not deviate from principle of the present utility model and essence, can make numerous variations or modification to these mode of executions.Therefore, protection domain of the present utility model is limited by appended claims.
Claims (8)
1. safety valve; it comprises a valve body that is assembled by a valve seat and a top cover; it is characterized in that; this safety valve comprises that also one is arranged on the outer safety cover of this valve body; this safety cover is positioned at the intersection near this valve seat and this top cover, and the edge of this safety cover bends to umbrella shape from this top cover to this valve seat.
2. safety valve according to claim 1 is characterized in that, the cross section of this safety cover is the n type.
3. safety valve according to claim 1 is characterized in that, this safety cover and this valve seat are formed in one.
4. safety valve according to claim 1, it is characterized in that, this safety valve comprises that also one is arranged on the guide rod in this valve body, this guide rod is provided with a valve plate near an end of this valve seat, be positioned on this guide rod this valve plate above also be provided with a bottom guide, be provided with a sheet barrier film between this bottom guide and this valve plate, the edge of this plate diaphragm is fixed on the inwall of this valve body, and this guide rod vertical fixing is in the center of this plate diaphragm.
5. safety valve according to claim 4 is characterized in that this guide rod vertically passes this plate diaphragm, and the edge of this plate diaphragm presses on the inwall of this top cover.
6. safety valve according to claim 4 is characterized in that, is provided with a Sealing between the core of this plate diaphragm and this guide rod.
7. safety valve according to claim 4 is characterized in that, the position near this plate diaphragm between this top cover and this valve seat is provided with another Sealing.
8. according to each described safety valve among the claim 4-7, it is characterized in that this plate diaphragm adopts silica gel material to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201647548U CN201651458U (en) | 2010-04-20 | 2010-04-20 | Safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201647548U CN201651458U (en) | 2010-04-20 | 2010-04-20 | Safety valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201651458U true CN201651458U (en) | 2010-11-24 |
Family
ID=43116695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201647548U Expired - Lifetime CN201651458U (en) | 2010-04-20 | 2010-04-20 | Safety valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201651458U (en) |
-
2010
- 2010-04-20 CN CN2010201647548U patent/CN201651458U/en not_active Expired - Lifetime
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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 |
Granted publication date: 20101124 |
|
| CX01 | Expiry of patent term |