CN201159103Y - Flame-proof piece of explosion-proof valve - Google Patents
Flame-proof piece of explosion-proof valve Download PDFInfo
- Publication number
- CN201159103Y CN201159103Y CNU2007203123297U CN200720312329U CN201159103Y CN 201159103 Y CN201159103 Y CN 201159103Y CN U2007203123297 U CNU2007203123297 U CN U2007203123297U CN 200720312329 U CN200720312329 U CN 200720312329U CN 201159103 Y CN201159103 Y CN 201159103Y
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- Prior art keywords
- flame
- explosion
- proof valve
- resistant sheet
- groove
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- Expired - Fee Related
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Abstract
The utility model provides a flame-retarded sheet of an explosion-proof valve, which belongs to the mechanical technical field. The flame-retarded sheet resolves problems that the flame-retarded sheet of the existing explosion-proof valve can not retard flame well, and is also limited in retarding air flow. The flame-retarded sheet of an explosion-proof valve is a ring-shaped sheeted sheet body, and the inner edge of the sheet body is bent upwards and downwards to form a plurality of grooves which extend toward the middle portion of the sheet body. The flame-retarded sheet of an explosion-proof valve has the advantages of retarding the flame and the air flow.
Description
Technical field
The utility model belongs to field of mechanical technique, relates to a kind of explosion-proof valve, particularly a kind of flame-resistant sheet of explosion-proof valve.
Background technique
At present, athletic meeting owing to bent axle in the crank case of internal combustion engine causes the mist of oil pinking that crankcase is interior, thereby produce the flame of high pressure draught and high temperature, and explosion-proof valve is arranged on the casing of crankcase, can discharge the pressure of crankcase, in relieving pressure, can stop flame by also closing subsequently to stop air to enter.
Common explosion-proof valve such as Chinese patent application number are 200620040829.5 disclosed " a kind of explosion-proof valves ", its disclose valve seat, fixedly connected with valve seat and form the valve gap of valve pocket with valve seat, be pressed on valve block on the valve seat, and flame-retardant device by the spring in the valve pocket, flame-retardant device is sleeved on by annular flame-resistant sheet in the gas approach of valve flow and the fixed support between two annular flame-resistant sheets by two at least to be formed, the annular flame-resistant sheet is because the lath of horizontal gas flow direction lamination is formed, and the lath inboard has ripple.Though the lath inboard has ripple, this ripple can not well stop flame, and the effect that slows down air-flow is also limited.
Summary of the invention
The purpose of this utility model is the problems referred to above at the flame-resistant sheet existence of existing explosion-proof valve, and a kind of flame-resistant sheet that can hinder the fire extinguishing flame and slow down the explosion-proof valve of air-flow is provided.
The purpose of this utility model can realize by following technical proposal: a kind of flame-resistant sheet of explosion-proof valve, its lamellar body is an annular slice, it is characterized in that the interior edge of described lamellar body is bent to form several grooves up and down, described each groove extends to the middle part of lamellar body.
In the flame-resistant sheet of above-mentioned explosion-proof valve, described groove evenly distributes by circumferencial direction on lamellar body.
In the flame-resistant sheet of above-mentioned explosion-proof valve, be provided with the projection of area in the described groove less than groove.
This flame-resistant sheet is arranged in the explosion-proof valve, can form the valve pocket of explosion-proof valve after flame-resistant sheet is layering.Generally, the flame-resistant sheet of explosion-proof valve has two flame-resistant sheets of symmetry, after these two flame-resistant sheets are superimposed, groove and groove are formed a cavity, because groove is bent to form up and down by interior edge, flame and air-flow can flow to cavity, and be arranged on projection in the groove with flame and airflow diversion, make it to form and expand, dam, expand, dam and weaken flame and air-flow, generally, outside again longshore current went out after air-flow will fill up cavity, flame then extinguishes in flame-resistant sheet, plays the purpose of buffer gas flow and resistance fire extinguishing flame.
In the flame-resistant sheet of above-mentioned explosion-proof valve, the recessed degree of described groove from interior edge to the outer reduces gradually.This structure can strengthen fire-retardant function.
In the flame-resistant sheet of above-mentioned explosion-proof valve, described groove reduces gradually to the width of the extension at lamellar body middle part.This structure has the function that hinders get a breathing space stream and knock down the flame.
In the flame-resistant sheet of above-mentioned explosion-proof valve, described groove both sides are curve, Yi Bian be repeatedly the curve of undulate bending, another side is an arc curve.
According to flame and gas flow feature, design the shape of groove according to jet current principle, be beneficial to flame and gas flow.
In the flame-resistant sheet of above-mentioned explosion-proof valve, described projection is positioned at along the place and is in the neutral position of groove.Projection can play slows down pressure, and in the position intermediate best results.
Compared with prior art, the flame-resistant sheet of this explosion-proof valve is provided with groove and projection in its side, and groove design becomes the shape of flame, after the flame-resistant sheet of two symmetries is superimposed, be formed for cushioning the cavity of flame and air-flow, can hinder fire extinguishing flame and the flow velocity that slows down air-flow, use and in explosion-proof valve, can obviously improve the usefulness that explosion-proof valve slows down air pressure and knock down the flame.
Description of drawings
Fig. 1 be this explosion-proof valve flame-resistant sheet face structural representation.
Fig. 2 is the left TV structure schematic representation of the flame-resistant sheet of this explosion-proof valve.
Among the figure, lamellar body 1, through hole 11, interior along 12, outer 13, groove 14, projection 15.
Embodiment
Below be specific embodiment of the utility model and in conjunction with the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
As depicted in figs. 1 and 2, the flame-resistant sheet of this explosion-proof valve, its lamellar body 1 is an annular slice, flame-resistant sheet is provided with six through holes 11, in be bent to form groove 14 up and down along 12, this groove 14 extends to the middle part of lamellar body 1, and the width of groove 14 reduces gradually when extending, and 13 recessed degree reduces gradually to the outer along 12 from interior.The both sides of groove 14 all are curve, Yi Bian be repeatedly the curve of undulate bending, another side is an arc curve, this structure is the flow feature according to flame and gas, design according to jet current principle, are beneficial to flame and gas flow.These grooves 1 are distributed on the lamellar body 1 along 12 along interior, and the intermediate portion in each groove 14 is provided with the projection 15 of area less than the groove area, and the sideline of projection 15 also is a curve.Between groove 14 and the groove 14 spacing is arranged, its interior along 12 on spacing length with interior be recessed along 12 upper grooves 14 and projection between spacing identical.Can form the inlet of identical size after the flame-resistant sheet of such two symmetries is superimposed, have the function of breaing up with refinement flame.
The flame-resistant sheet of explosion-proof valve has two flame-resistant sheets of symmetry, after these two flame-resistant sheets are superimposed, groove 14 and groove 14 are formed a cavity, because groove 14 is positioned at along 12, flame and air-flow can flow to cavity, and the projection 15 that is arranged in the groove 14 makes it flame and airflow diversion form expansion, dam, expand again, dam again and weaken flame and air-flow, simultaneously, flow out to outer 13 after air-flow will fill up cavity, flame then extinguishes in flame-resistant sheet again, plays the purpose of buffer gas flow and resistance fire extinguishing flame.
Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Although this paper used morely through hole 11, interior along 12, terms such as outer 13, groove 14, projection 15, lamellar body 1, do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain essence of the present utility model more easily; They are construed to any additional restriction all is contrary with the utility model spirit.
Claims (7)
1, a kind of flame-resistant sheet of explosion-proof valve, it is the lamellar body (1) of the sheet of annular, it is characterized in that the interior edge (12) of described lamellar body (1) is bent to form some grooves (14) up and down, described groove (14) extends to the middle part of lamellar body (1).
2, the flame-resistant sheet of explosion-proof valve according to claim 1 is characterized in that, described groove (14) is gone up at lamellar body (1) and evenly distributed by circumferencial direction.
3, the flame-resistant sheet of explosion-proof valve according to claim 1 and 2 is characterized in that, is provided with the projection (15) of area less than groove (14) in the described groove (14).
4, the flame-resistant sheet of explosion-proof valve according to claim 3 is characterized in that, the recessed degree of (13) reduces described groove (14) gradually to the outer from interior edge (12).
5, the flame-resistant sheet of explosion-proof valve according to claim 4 is characterized in that, described groove (14) reduces gradually to the width of the extension at lamellar body (1) middle part.
6, the flame-resistant sheet of explosion-proof valve according to claim 5 is characterized in that, described groove (14) both sides are curve, Yi Bian be repeatedly the curve of undulate bending, another side is an arc curve.
7, the flame-resistant sheet of explosion-proof valve according to claim 3 is characterized in that, described projection (15) is positioned at the neutral position that groove (14) were located and were on edge (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007203123297U CN201159103Y (en) | 2007-12-18 | 2007-12-18 | Flame-proof piece of explosion-proof valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007203123297U CN201159103Y (en) | 2007-12-18 | 2007-12-18 | Flame-proof piece of explosion-proof valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201159103Y true CN201159103Y (en) | 2008-12-03 |
Family
ID=40109689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007203123297U Expired - Fee Related CN201159103Y (en) | 2007-12-18 | 2007-12-18 | Flame-proof piece of explosion-proof valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201159103Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101187337B (en) * | 2007-12-18 | 2012-09-26 | 李潘宝 | Flame-resistant sheet of explosion-proof valve |
-
2007
- 2007-12-18 CN CNU2007203123297U patent/CN201159103Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101187337B (en) * | 2007-12-18 | 2012-09-26 | 李潘宝 | Flame-resistant sheet of explosion-proof valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081203 Termination date: 20131218 |