CN203743541U - Low-pressure protection valve of normal-pressure vessel - Google Patents
Low-pressure protection valve of normal-pressure vessel Download PDFInfo
- Publication number
- CN203743541U CN203743541U CN201420166687.1U CN201420166687U CN203743541U CN 203743541 U CN203743541 U CN 203743541U CN 201420166687 U CN201420166687 U CN 201420166687U CN 203743541 U CN203743541 U CN 203743541U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve body
- low
- bonnet
- sealing plectane
- 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
Links
- 238000007789 sealing Methods 0.000 claims abstract description 24
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 230000007547 defect Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000003570 air Substances 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
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- Safety Valves (AREA)
Abstract
The utility model belongs to the technical field of valves, and provides a low-pressure protection valve of a normal-pressure vessel. An existing low-pressure protection valve has defects of complex structure, difficulty in mounting and proneness to damaging the vessel. The low-pressure protection valve comprises a valve body, a bonnet and an opening component, the bonnet is fixedly connected with one side of the valve body, a through hole is formed in the valve body to enable an inner cavity of the valve body to be communicated with an inner cavity of the bonnet, and an air inlet is formed in the bonnet. The low-pressure protection valve is characterized in that a chuck structure is arranged on the other side of the valve body, the opening component comprises a sealing round plate, a valve rod and an adjusting spring, the sealing round plate is located in the inner cavity of the valve body, the valve rod is arranged in an inner cavity of the bonnet, one end of the valve rod penetrates the through hole in the valve body and fixedly connected with the sealing round plate, and the adjusting spring sleeves the valve rod. The low-pressure protection valve is simple in structure, low in production cost and capable of effectively protecting the vessel against damage; in addition, chuck type mounting is adopted, so that convenience is brought to mounting.
Description
Technical field
The utility model belongs to valve technology field, especially relevant with a kind of normal pressure container low-voltage variation valve.
Background technique
In traditional Chinese medicine extraction or chemical enterprise; conventionally can use more normal pressure container; conventionally can make normal pressure container become negative-pressure container by pipeline due to misoperation in actual use; when normal pressure container is during in high negative pressure; the shell of normal pressure container is the in the situation that of vacuum and deformed damaged; more existing low-voltage variation valve mechanisms are more complicated, and adopt screw thread mounting structure more, and trouble is installed.
Model utility content
The purpose of this utility model is intended to overcome existing low-voltage variation valve mechanism complexity, the defect that bothers, easily damages container is installed, and a kind of normal pressure container low-voltage variation valve simple in structure, easy for installation and not fragile container is provided.
For this reason, the utility model is by the following technical solutions: normal pressure container low-voltage variation valve, comprise valve body, valve gap and opening assembly, valve gap is fixedly connected with valve body one side, on valve body, be provided with through hole body cavity is communicated with described valve gap inner chamber, on valve gap, be provided with suction port, it is characterized in that, described valve body opposite side is provided with chuck structure, convenient and swift while making to install; Described opening assembly comprises sealing plectane, valve rod and adjustment spring, sealing plectane is positioned at body cavity, valve rod is arranged at described valve gap inner chamber, and valve rod one end is fixedly connected with described sealing plectane through the through hole on described valve body, is set with adjustment spring on described valve rod.
As to technique scheme supplement and perfect, the utility model also comprises following technical characteristics.
Described sealing plectane is truncated cone shape, and the end face of the less one end of radius is fixedly connected with described valve rod one end, and the through-hole side wall on described valve body is corresponding with the side of described sealing plectane.
Described sealing plectane is stainless steel sealing plectane.
When the utility model uses; in the time that vacuum is drawn in normal pressure container inside; the barometric pressure of ambient air backs down sealing plectane by the inlet hole of protection valve makes air enter smoothly internal tank, thereby it is very little to maintain the inside and outside pressure reduction of container, thereby thereby avoids causing interior suction of damage of equipment to damage.
Use the utility model can reach following beneficial effect: the utility model is simple in structure, and cost of production is lower, and can effectively protect container not to be damaged; Adopt in addition chuck mode to install, easy for installation.
Brief description of the drawings
Fig. 1 is the utility model easy structure schematic diagram.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail.
As shown in Figure 1, the utility model comprises valve body 6, valve gap 3 and opening assembly, valve gap 3 is fixedly connected with valve body 6 one sides, on valve body 6, being provided with through hole makes valve body 6 inner chambers be communicated with valve gap 3 inner chambers, on valve gap 3, be provided with suction port 5, valve body 6 opposite sides are provided with chuck structure 7, convenient and swift while making to install; Described opening assembly comprises sealing plectane 1, valve rod 2 and adjusts spring 4, sealing plectane 1 is positioned at valve body 6 inner chambers, sealing plectane 1 is truncated cone shape stainless steel sealing plectane, the end face of the less one end of radius is fixedly connected with valve rod 2 one end, through-hole side wall on valve body 6 is corresponding with the side of described sealing plectane 1, valve rod 2 is arranged at valve gap 3 inner chambers, and valve rod 2 one end are fixedly connected with sealing plectane 1 through the through hole on valve body 6, be set with and adjust spring 4 on valve rod 2.
Claims (3)
1. normal pressure container low-voltage variation valve, comprise valve body (6), valve gap (3) and opening assembly, valve gap (3) is fixedly connected with valve body (6) one sides, on valve body (6), being provided with through hole makes valve body (6) inner chamber be communicated with valve gap (3) inner chamber, on valve gap (3), be provided with suction port (5), it is characterized in that: described valve body (6) opposite side is provided with chuck structure (7); Described opening assembly comprises sealing plectane (1), valve rod (2) and adjusts spring (4), sealing plectane (1) is positioned at valve body (6) inner chamber, valve rod (2) is arranged at valve gap (3) inner chamber, valve rod (2) one end is fixedly connected with sealing plectane (1) through the through hole on described valve body (6), is set with and adjusts spring (4) on valve rod (2).
2. normal pressure container low-voltage variation valve according to claim 1; it is characterized in that: described sealing plectane (1) is truncated cone shape; the end face of the less one end of radius is fixedly connected with valve rod (2) one end, and the through-hole side wall on valve body (6) is corresponding with the side of sealing plectane (1).
3. normal pressure container low-voltage variation valve according to claim 2, is characterized in that: described sealing plectane (1) is stainless steel sealing plectane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420166687.1U CN203743541U (en) | 2014-04-08 | 2014-04-08 | Low-pressure protection valve of normal-pressure vessel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420166687.1U CN203743541U (en) | 2014-04-08 | 2014-04-08 | Low-pressure protection valve of normal-pressure vessel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203743541U true CN203743541U (en) | 2014-07-30 |
Family
ID=51343342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420166687.1U Expired - Lifetime CN203743541U (en) | 2014-04-08 | 2014-04-08 | Low-pressure protection valve of normal-pressure vessel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203743541U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108057192A (en) * | 2017-12-11 | 2018-05-22 | 神龙汽车有限公司 | The automatic suppressing method of passive type automobile fire and its device |
-
2014
- 2014-04-08 CN CN201420166687.1U patent/CN203743541U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108057192A (en) * | 2017-12-11 | 2018-05-22 | 神龙汽车有限公司 | The automatic suppressing method of passive type automobile fire and its device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 312500 Confucian Ao Town, Xinchang County, Shaoxing, Zhejiang Patentee after: ZHEJIANG DND PHARMACEUTICAL CO.,LTD. Address before: 312500 Confucian Ao Town, Xinchang County, Shaoxing, Zhejiang Patentee before: ZHEJIANG DND PHARMACEUTICAL CO.,LTD. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140730 |