CN203428310U - Special breathing valve for corrosive liquid transport vehicle - Google Patents
Special breathing valve for corrosive liquid transport vehicle Download PDFInfo
- Publication number
- CN203428310U CN203428310U CN201320472415.XU CN201320472415U CN203428310U CN 203428310 U CN203428310 U CN 203428310U CN 201320472415 U CN201320472415 U CN 201320472415U CN 203428310 U CN203428310 U CN 203428310U
- Authority
- CN
- China
- Prior art keywords
- valve body
- corrosive liquid
- transport vehicle
- cover plate
- liquid transport
- 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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- Self-Closing Valves And Venting Or Aerating Valves (AREA)
Abstract
The utility model discloses a special breathing valve for a corrosive liquid transport vehicle. The special breathing valve comprises a valve body which is made of a corrosion-resistant material, and is characterized in that a cover plate with a seat ring is arranged on the valve body; a combinative plugging cover is arranged on the cover plate; a plugging cover breathing hole is formed in the plugging cover; a guide hole is formed in the center of the cover plate; a breathing hole is formed in the lower part of the valve body; a floating cylinder with a guide rod is arranged in the valve body; a supporting cylinder is arranged below the floating cylinder. The internal gas pressure and external gas pressure of a glass steel tank body of the corrosive liquid transport vehicle keep balanced, leakage of corrosive liquid in the glass steel tank body caused by ascent and descent of a transport vehicle is prevented, a vehicle body is protected from being corroded, the driving safety is guaranteed, and the environmental protection is facilitated.
Description
Technical field
The utility model relates to corrosive liquid field of transport vehicles, refers in particular to the special-purpose breathing valve on corrosive liquid transport trolley glass-felt plastic tank body.
background technology
At present, corrosive liquid transport trolley is because the corrosive property of conveying medium is very strong, the automobile-used breathing valve of standard oil tank that the glass-felt plastic tank body of splendid attire corrosive liquid can not be used metallic material to make, general arranges one or two with the air extractor vent of bend pipe at glass-felt plastic tank deck with resistant material.This device has obviously played draught effect, makes tank body external and internal pressure balanced, avoids tank body to wreck because producing malleation or negative pressure, but easily causes corrosive liquid to leak, and very easily corroding car chassis affects traffic safety and contaminated environment.
utility model content
The purpose of this utility model is, at corrosive liquid transport trolley glass-felt plastic tank body top, special-purpose breathing valve is set, and makes glass fiber reinforced plastic tank inside and outside air pressure keep balance, and stops in-tank corrosion leaked liquid, ensures transport vehicle safe operation.
The utility model solves the technical scheme that its technical matters adopts:
Provide a kind of corrosive liquid transport trolley special-purpose breathing valve, comprise the valve body that corrosion resistant material is made, it is characterized in that: described valve body is provided with the cover plate with seat ring, cover plate is provided with combinative blanking cover, blanking cover is provided with blanking cover spiracle, the center of cover plate is provided with pilot hole, and the bottom of valve body is provided with spiracle; In described valve body, be provided with the floating drum of guide, floating drum below is provided with support tube.
Principle of work of the present utility model and beneficial effect are: the floating drum with pilot bar in valve body can slide up and down, and when corrosive liquid overflows floating drum to valve body, floating drum upward sliding is blocked pilot hole, stops corrosive liquid excessive; When tank level is during lower than floating drum, floating drum falls within on support tube, and spiracle communicates with outside atmosphere; When transport vehicle travels to there being certain slope section, when corrosive liquid overflows to floating drum, floating drum rises, and on floating drum, plane is blocked pilot hole, stops corrosive liquid excessive; When vehicle level run, in valve body, liquid level declines, and floating drum falls back on support tube, and spiracle is recovered to communicate with outside atmosphere.
When keeping the inside and outside air pressure equilibrium of corrosive liquid transport trolley glass-felt plastic tank body, the corrosive liquid in prevention glass-felt plastic tank body, because transport vehicle uphill, downhill leaks, makes car body corrosion, and guarantee driving safety, is beneficial to protection of the environment.
Accompanying drawing explanation
Fig. 1 is structure cutaway view schematic diagram of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described:
The valve body of making for a kind of corrosion resistant material in Fig. 1, the material using in the present embodiment is glass-felt plastic, valve body 10 is provided with the cover plate 5 with seat ring 3, cover plate 5 is provided with combinative blanking cover 1, blanking cover 1 is provided with blanking cover spiracle 2, the center of cover plate 5 is provided with pilot hole 4, and the bottom of valve body 10, namely lower than the top of glass-felt plastic tank body 8, is provided with spiracle 9; In described valve body 10, be provided with the floating drum 6 of guide 7, floating drum 6 belows are provided with support tube 11.
Working process of the present utility model:
When transport vehicle level run, the interior liquid level of glass-felt plastic tank body 8 is lower than floating drum 6, floating drum 6 drops on support tube 11, and the interior gas of glass-felt plastic tank body 8 communicates with outside atmosphere by spiracle 9, pilot hole 4, blanking cover spiracle 2, and the inside and outside air pressure of glass-felt plastic tank body 8 is balanced.When transport vehicle travels when having certain slope section, liquid level can enter in valve body 10 by spiracle 9, and when liquid level overflows to floating drum 6, floating drum 6 rises, and on floating drum 6, plane is blocked pilot hole 4, stops liquid spill.When vehicle level run, the interior liquid level of valve body 10 declines, and floating drum 6 falls back on support tube 11, and the interior gas of glass-felt plastic tank body 8 recovers to communicate with atmosphere; Seat ring 3 reliable connection on blanking cover 1 and cover plate 5, prevent that outside rainwater from entering glass-felt plastic tank body 8 inside.
Although shown detailed embodiment of the present utility model above, apparent, those skilled in the art is under prerequisite of the present utility model, can carry out part modifications and changes; The content of mentioning in description above and accompanying drawing, only as illustrative case, not, as to restriction of the present utility model, has the special-purpose breathing valve of corrosive liquid transport trolley of above-mentioned technical characterictic, all falls into the utility model protection domain.
Claims (1)
1. the special-purpose breathing valve of a corrosive liquid transport trolley, comprise the valve body that corrosion resistant material is made, it is characterized in that: described valve body is provided with the cover plate with seat ring, cover plate is provided with combinative blanking cover, blanking cover is provided with blanking cover spiracle, the center of cover plate is provided with pilot hole, and the bottom of valve body is provided with spiracle; In described valve body, be provided with the floating drum of guide, floating drum below is provided with support tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320472415.XU CN203428310U (en) | 2013-08-05 | 2013-08-05 | Special breathing valve for corrosive liquid transport vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320472415.XU CN203428310U (en) | 2013-08-05 | 2013-08-05 | Special breathing valve for corrosive liquid transport vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203428310U true CN203428310U (en) | 2014-02-12 |
Family
ID=50057361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320472415.XU Expired - Fee Related CN203428310U (en) | 2013-08-05 | 2013-08-05 | Special breathing valve for corrosive liquid transport vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203428310U (en) |
-
2013
- 2013-08-05 CN CN201320472415.XU patent/CN203428310U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140212 Termination date: 20200805 |