CN2159234Y - First aid with compressed oxygen - Google Patents
First aid with compressed oxygen Download PDFInfo
- Publication number
- CN2159234Y CN2159234Y CN 93227850 CN93227850U CN2159234Y CN 2159234 Y CN2159234 Y CN 2159234Y CN 93227850 CN93227850 CN 93227850 CN 93227850 U CN93227850 U CN 93227850U CN 2159234 Y CN2159234 Y CN 2159234Y
- Authority
- CN
- China
- Prior art keywords
- valve body
- oxygen
- supply
- pressure
- thorax
- 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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Abstract
The utility model relates to a self-rescuer with oxygen used for the protection of mine safety, and comprises an outer shell, a mouth tool, a cleaning tank, an air bag, a pressure reducer, and an oxygen cylinder. The pressure reducer adopt a piston type pressure reducing and pressure maintaining structure to realize maintaining pressure, reducing pressure, quantitative oxygen supply, and supplying oxygen supply. The volume of the self-rescuer with oxygen can be led to reduce by twice, and the weight of the self-rescuer with oxygen can be led to reduce by one third. The utility model can be used repeatedly with the advantages of low cost, light weight, portability, reliable performance, safe operation, etc.
Description
The utility model relates to a kind of oxygen life saving device that is used for the mine safety protection.
Oxygen life saving device commonly used now has three kinds, is respectively filtering type oxygen life saving device, chemical oxygen self-rescuer and compressed oxygen self-rescuer.The first two kind all is disposable scrap products, can not reuse after storage expiration or the use again, causes very big waste.The pressure reducer of existing compressed oxygen self-rescuer all adopts rubber membrane chip structure, and volume and weight is bigger, and the user carries inconvenience.
The purpose of this utility model be to provide a kind of piston type pressure reduction structure, in light weight, volume is little, compressed oxygen self-rescuer easy to carry, reusable.
The utility model is to realize like this.The compressed oxygen self-rescuer is made up of shell (1), mouthful tool (3), peace and quiet jar of (2), air bag (8), pressure reducer (4) and oxygen cylinder (5).But shell is provided with the hole of a through port tool, a peace and quiet jar of end connector tool, its other end connects air bag, the pressure reducer two ends connect air bag and oxygen cylinder respectively, pressure reducer adopts piston cylinder operator, its outside is valve body (9), but the valve body middle part is provided with the constant pressure reduction piston rod (10) of move left and right along the horizontal cross shaft direction, the one side is fastened on the spring (11) of valve body, opposite side abuts against on the valve body and is provided with I shape tap hole (13), on transverse axis, be provided with low pressure thorax chamber (15), tap hole communicates with low pressure thorax chamber, on the valve body of upper end, constant pressure reduction piston rod middle part air admission hole (17) is arranged, valve body lower portion horizontal longitudinal axis direction is provided with can unidirectional mobile supply valve rod (20), the one side is supply button (21), opposite side is connected with supply spool (24), the supply spool is connected with spring (23) on being fixed on valve body, on the longitudinal axis, be provided with oxygen supply thorax chamber (22), supply valve rod middle valve body is provided with the charging hole (19) that communicates with low pressure thorax chamber, is communicated with by quantitative oxygen supply hole (18) between oxygen supply thorax chamber and the low pressure thorax chamber.Oxygen supply thorax thorax is provided with venthole (25), adopts slipper seal to be connected between constant pressure reduction piston rod, supply valve rod and the valve body.
The utility model can make two times of oxygen life saving device volume-diminished owing to adopt the piston type pressure reduction structure, and weight saving 1/3rd has that cost is low, volume is little, in light weight, easy to carry a, dependable performance, advantage such as safe in utilization and reusable.
Below in conjunction with accompanying drawing the utility model is described in further details.
Fig. 1 is a compressed oxygen self-rescuer schematic diagram.
Fig. 2 is the vertical view of Fig. 1.
Fig. 3 is the left view of Fig. 1.
Fig. 4 is the pressure reducer section of structure.
Fig. 5 is the A-A profile of Fig. 4.
Shell (1) side is provided with the clamp (7) that portability is used, mouth tool (3) is flexible flexible pipe, peace and quiet jar of (2) one end connector tools, the other end connects air bag (8), pressure reducer (4) one ends connect oxygen cylinder (5) by stop valve (6), the other end connects air bag (8), pressure reducer valve body (9) but the middle part horizontal cross shaft is provided with the constant pressure reduction piston rod (10) of move left and right, its left side is connected with spring (11), spring is fixed on the valve body by middle adjustment screw rod (12) with holes, its right side is provided with I shape tap hole (13), between valve body and the constant pressure reduction piston rod damping hole (14), be restriction (16) between constant pressure reduction piston rod and the low pressure thorax chamber (15), upper end, constant pressure reduction piston rod middle part valve body is provided with air admission hole (17), having on the valve body lower portion horizontal longitudinal axis can unidirectional mobile supply valve rod (20), its right side connects supply button (21), its left side connects supply spool (24), the supply spool is connected with spring (23) on being fixed on valve body, oxygen supply thorax chamber (22) communicates with low pressure thorax chamber by quantitative oxygen supply hole (18), upper end, supply valve rod middle part valve body is provided with the charging hole (19) that communicates with low pressure thorax chamber, oxygen supply thorax chamber is provided with venthole (25), constant pressure reduction piston rod, all adopt sliding ring to be connected between supply valve rod and the valve body.Its pressure reducer operation principle is, open oxygen supply stop valve (6), oxygen cylinder oxygen flows into from air admission hole (17), flows into low pressure thorax chamber (15) through damping hole (14) and restriction (16), enter oxygen supply thorax chamber (22) through quantitative oxygen supply hole (18) again, enter air bag from venthole (25).Simultaneously, oxygen also flows into tap hole (13) through low pressure thorax chamber, when oxygen supply begins, low pressure thorax cavity pressure is less than the pressure (0.3～0.4MPa) of spring (11), restriction (16) is all opened, along with increasing of oxygen influx, the pressure of low pressure thorax thorax constantly increases, when low pressure thorax cavity pressure during greater than the pressure of spring (11), the constant pressure reduction piston rod is moved to the left, and makes restriction slit degree little, reduce the pressure in low pressure thorax chamber, the assurance air-flow is reduced to the process of low pressure (2MPa) from high pressure (20MPa), and the force value of keeping low pressure thorax chamber is constant substantially, remains on the constant dosage of oxygen service time.Quantitatively oxygen supply is not enough and when needing supply, the user presses supply button (21), and supply valve rod (20) is moved to the left, and opens supply spool (24), oxygen just flows into oxygen supply thorax chamber (22) by low pressure thorax chamber from charging hole (19), enters air bag from venthole (25).Its important technological parameters is:
Admission pressure: 20MPa～2MPa
Air admission hole: 0.4～0.6mm
Low pressure thorax chamber power: 0.3～0.4MPa
Claims (3)
1, a kind of compressed oxygen self-rescuer, comprise shell, the mouth tool, peace and quiet jar, pressure reducer, air bag and oxygen cylinder are formed, it is characterized in that but shell is provided with the hole of a through port tool, a peace and quiet jar of end connector tool, its other end connects air bag, the pressure reducer two ends connect air bag and oxygen cylinder respectively, pressure reducer adopts piston cylinder operator, its outside is valve body (9), but the valve body middle part is provided with the constant pressure reduction piston rod (10) of move left and right along the horizontal cross shaft direction, the one side is fastened on the spring (11) of valve body, opposite side abuts against on the valve body and is provided with I shape tap hole (13), on transverse axis, be provided with low pressure thorax chamber (15), tap hole communicates with low pressure thorax chamber, on the valve body of upper end, constant pressure reduction piston rod middle part air admission hole (17) is arranged, valve body lower portion horizontal longitudinal axis direction is provided with can unidirectional mobile supply valve rod (20), the one side is supply button (21), opposite side is connected with supply spool (24), the supply spool is connected with spring (23) on being fixed on valve body, on the longitudinal axis, be provided with oxygen supply thorax chamber (22), supply valve rod middle valve body is provided with the charging hole (19) that communicates with low pressure thorax chamber, be communicated with by quantitative oxygen supply hole (18) between oxygen supply thorax chamber and the low pressure thorax chamber, oxygen supply thorax thorax is provided with venthole (25), constant pressure reduction piston rod, adopt slipper seal to be connected between supply valve rod and the valve body.
2, compressed oxygen self-rescuer according to claim 1 is characterized in that the clamp (7) that the shell side is provided with portability and uses.
3, compressed oxygen self-rescuer according to claim 1 is characterized in that spring (11) is fixed on the valve body by middle adjustment screw rod (12) with holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93227850 CN2159234Y (en) | 1993-04-10 | 1993-04-10 | First aid with compressed oxygen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93227850 CN2159234Y (en) | 1993-04-10 | 1993-04-10 | First aid with compressed oxygen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2159234Y true CN2159234Y (en) | 1994-03-23 |
Family
ID=33805027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93227850 Expired - Fee Related CN2159234Y (en) | 1993-04-10 | 1993-04-10 | First aid with compressed oxygen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2159234Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111420315A (en) * | 2020-05-18 | 2020-07-17 | 丁祥书 | Compressed oxygen self-rescuer that security performance is high |
-
1993
- 1993-04-10 CN CN 93227850 patent/CN2159234Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111420315A (en) * | 2020-05-18 | 2020-07-17 | 丁祥书 | Compressed oxygen self-rescuer that security performance is high |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |