CN201694573U - Manhole cover of light off-road fuel vehicle - Google Patents
Manhole cover of light off-road fuel vehicle Download PDFInfo
- Publication number
- CN201694573U CN201694573U CN 201020245849 CN201020245849U CN201694573U CN 201694573 U CN201694573 U CN 201694573U CN 201020245849 CN201020245849 CN 201020245849 CN 201020245849 U CN201020245849 U CN 201020245849U CN 201694573 U CN201694573 U CN 201694573U
- Authority
- CN
- China
- Prior art keywords
- valve
- manhole cover
- flap
- country
- manlid
- 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
Images
Landscapes
- Safety Valves (AREA)
Abstract
A manhole cover of a light off-road fuel vehicle comprises a large manhole cover, a small manhole cover and a breather valve. An upper press plate and a lower press plate are arranged on the small manhole cover and connected via a lock, a back pressure relief valve is mounted on the upper portion of the large manhole cover, and the omnibearing overflow-preventive breather valve is mounted inside the small manhole cover. By the arrangement of the back pressure relief valve and modification of the breather valve, the manhole cover overcomes the shortages that a traditional manhole cover of a fuel tank is only suitable for running on excellent road surfaces, a large amount of fluid can flow out of a breather valve when a tank body tips over in extreme conditions, the breather valve arranged inside the manhole cover is easily submerged by the fluid when the fuel tank is in fuel unloading (loading) operation on a slope, and the like. Additionally, the manhole cover of a light off-road fuel vehicle realizes reduction of fuel loss during transport, prevents a fuel tank from being sucked flat during fuel unloading, and can be widely additionally mounted on various fuel vehicles and particularly on off-road vehicles with complicated running conditions.
Description
Technical field
The utility model relates to the manhole cover on a kind of filling car oil tank.
Background technology
General fortune filling car all is equipped with manhole cover and is furnished with breathing valve for regulating the oil tank internal pressure, if but only joining common breathing valve exists following defective: at first, only be applicable to the good road surface operation.When chance was jolted road and sudden stop, liquid easily overflowed from the young amount of breathing valve.Secondly, when chance extreme case car body was tumbled, liquid can overflow in a large number from breathing valve port.And manhole cover adorns built-in breathing valve, easily flooded by liquid when unloading (adding) oily operation on the abrupt slope.May cause jar interior degree of vacuum excessive, thereby inhale flat tank body, cause oil tank to inhale flat accident.Above-mentioned defective is anxious to be waited to improve.
The utility model content
The purpose of this utility model provides a kind of Manlid of light fuel cross-country bowser, the technical matters that liquid can leak in the time of solving traditional manhole cover oil car of only joining common breathing valve and jolt or tumble; And the problem of easily inhaling flat oil tank when solving emptying.
For achieving the above object, the utility model adopts following technical scheme.
A kind of Manlid of light fuel cross-country bowser, comprise big manhole cover, little manhole cover and breathing valve, wherein, top board and lower platen are arranged on the little manhole cover, top board is connected by lock with lower platen, top at big manhole cover is equipped with back pressure relief valve, and the installed inside of little manhole cover has breathing valve, and described breathing valve is comprehensive anti-overflow breathing valve.
The valve body of described comprehensive anti-overflow breathing valve is positioned at the valve pocket that is surrounded by bonnet, and bottom flange, comprise spheroid, anti-overflow flap, exhaust valve seat and depression bar, described spheroid is positioned at the cavity that anti-overflow flap and bottom flange surround, the anti-overflow flap comprises air-breathing flap parts and exhaust flap parts, air-breathing flap parts and exhaust flap parts are installed on the depression bar, and exhaust flap parts are connected with exhaust valve seat.
Described bottom flange profile is a grooved, and two outlimbs are provided with the back-fire relief net, bottom flange and spheroid contact surface nick.
The profile of described anti-overflow flap and spheroid contact surface is for bowl-shape.
Described back pressure relief valve is connected with the cover plate of big manhole cover by the flange of its both sides, its valve body is positioned at the valve pocket that guard shield, side neck, valve gap surround, mainly form by flap, valve rod, spring and valve seat, one end of valve rod connects flap, the flap bottom surface is connected with spring, the valve rod other end is connected with valve seat by the pin folder, and the pin folder has packing seal with the contact surface of valve seat, and the valve seat two ends are connected with valve gap by lock bolt.
Described side neck profile is stepped, and internal diameter increases by rank from top to bottom, the flap upper surface flushes with side neck first rank, tight lock bolt upper surface is stuck in place, side neck second rank, and the bottom flange section is a grooved, and central part contracts to tip section, and be stuck in side neck quadravalence inboard, the bottom flange end face has pressure ring, and the side is filled with elastomeric material, and there is a circle fire trapping ring side neck lower end.
Described guard shield is connected with the flange that is positioned at the side neck outside by adapter sleeve.
Seal ring is all established in described side neck the 3rd rank and pressure ring lower surface.
The response pressure of described back pressure relief valve is-10kPa, complete opening pressure be-20kPa.
Compared with prior art the utlity model has following characteristics and beneficial effect:
At first; the utility model adopts comprehensive anti-overflow breathing valve; in normal transport or handling process; when the oil tank internal pressure is higher than external pressure 70mb or is lower than external pressure 20mb; breathing valve can be opened; the inside and outside gas of oil tank is communicated, and too high or too low pressure reduction in the automatically regulating jar plays the safety guard-safeguard effect.The oil tank internal pressure is higher than external pressure 20mb when being lower than external pressure 70mb, and the anti-overflow breathing valve is in closed condition, makes to keep certain pressure in the oil tank, to reduce the waste of fuel oil.
Secondly, the utility model adopts comprehensive anti-overflow breathing valve, when cross-country filling car is in jolting or tilt to reach certain state in the transportation, that is: when forming certain angle of inclination with horizontal surface, anti-overflow breathing valve interior spheroid produces displacement on the nick face of valve pocket bottom, the anti-overflow flap is prevented that along flap sloped roof to off position oil product is excessive by spheroid; When cross-country filling car is in horizontality, but under the motional inertia effect, spheroid is offset on the nick face of valve pocket bottom, and the anti-overflow flap is closed, and prevents the outside oil spilling of tank body; When turning on one's side outside cross-country filling car transportation is like, spheroid withstands the anti-overflow flap and prevents that oil product from leaking under the effect of gravity.
At last, the back pressure relief valve that the utility model is provided with is when cross-country filling car is in certain slope and carries out the emptying operation, when the jar internal pressure reach-during 0.01Mpa, the negative pressure that acts on flap overcomes spring force, and back pressure relief valve is opened, and can avoid taking place oil tank and be inhaled flat accident.
The manhole cover that the utility model has overcome traditional fuel tanker only is applicable to the good road surface operation, when chance extreme case car body is tumbled, liquid can be from breathing that valve port overflows in a large number and abrupt slope when unloading (adding) oily operation, easily by shortcomings such as liquid flood, solved fuel tanker and toppled and jolt easy oil leakage and owing to inhale the flat technical matters that causes the accident when manhole cover is adorned built-in breathing valve.
The utility model can be widely used in various filling cars, especially the cross-country car of running condition complexity.
Description of drawings
The utility model is described in more detail below in conjunction with accompanying drawing.
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the birds-eye view of Fig. 1.
Fig. 3 is the structural representation of comprehensive anti-overflow breathing valve.
Fig. 4 is the structural representation of back pressure relief valve.
The big manhole cover of Reference numeral: 1-, the little manhole cover of 2-, the 3-top board, the 4-lower platen, the 5-lock, the 6-bonnet,, the 7-bottom flange, the 8-spheroid, the 9-exhaust valve seat, the 10-depression bar, 11-back-fire relief net, 12-anti-overflow flap, the air-breathing flap parts of 13-, 14-exhaust flap parts, the 15-flange, the 16-guard shield, the 17-side neck, the 18-valve gap, the 19-flap, the 20-valve rod, the 21-spring, the 22-valve seat, the 23-packing seal, the 24-lock bolt, the 25-pressure ring, the 26-adapter sleeve, the 27-fire trapping ring, the 28-seal ring, 29-sells folder.
The specific embodiment
Specifically implement referring to Fig. 1-4, Fig. 1 is a structural representation of the present utility model, and Fig. 2 is the birds-eye view of Fig. 1.A kind of Manlid of light fuel cross-country bowser, comprise big manhole cover 1, person of low position's port lid 2 and breathing valve, wherein, top board 3 and lower platen 4 are arranged on person of low position's port lid 2, top board 3 is connected by lock 5 with lower platen 4, top at big manhole cover 1 is equipped with back pressure relief valve, and the installed inside of person of low position's port lid 2 has breathing valve, and described breathing valve is comprehensive anti-overflow breathing valve.
Fig. 3 is the structural representation of comprehensive anti-overflow breathing valve, the valve body of comprehensive anti-overflow breathing valve is positioned at the valve pocket that is surrounded by bonnet, 6 and bottom flange 7, comprise spheroid 8, anti-overflow flap 12, exhaust valve seat 9 and depression bar 10, described spheroid 8 is positioned at the cavity that anti-overflow flap 12 and bottom flange 7 surround, anti-overflow flap 12 comprises air-breathing flap parts 13 and exhaust flap parts 14, air-breathing flap parts 13 and exhaust flap parts 14 are installed on the depression bar 10, and exhaust flap parts 14 are connected with exhaust valve seat 9.
Described bottom flange profile is a grooved, and two outlimbs are provided with back-fire relief net 11, the contact surface nick of bottom flange 7 and spheroid 8.The profile of described anti-overflow flap 12 and spheroid contact surface is for bowl-shape.
Referring to Fig. 4, Fig. 4 is the structural representation of back pressure relief valve, back pressure relief valve is connected with the cover plate of big manhole cover 1 by the flange 15 of its both sides, its valve body is positioned at the valve pocket that guard shield 16, side neck 17, valve gap 18 surround, mainly form by flap 19, valve rod 20, spring 21 and valve seat 22, one end of valve rod 20 connects flap 19, the bottom surface of flap 19 is connected with spring 21, the other end of valve rod 20 is connected with valve seat 22 by pin folder 29, pin folder 29 has packing seal 23 with the contact surface of valve seat, and the valve seat two ends are connected with valve gap 18 by lock bolt 24.Described side neck profile is stepped, and internal diameter increases by rank from top to bottom, the flap upper surface flushes with side neck first rank, tight lock bolt upper surface is stuck in place, side neck second rank, and the bottom flange section is a grooved, and central part contracts to tip section, and be stuck in side neck quadravalence inboard, the bottom flange end face has pressure ring 25, and the side is filled with elastomeric material, and there is a circle fire trapping ring 27 the side neck lower end.In the described guard shield 16 adapter sleeve 26 is arranged, guard shield 16 is connected with the flange 15 that is positioned at the side neck outside by adapter sleeve 26.Seal ring 28 is all established in described side neck the 3rd rank and pressure ring lower surface.The response pressure of described back pressure relief valve is-10kPa, complete opening pressure be-20kPa.
Above embodiment is an exemplary embodiments of the present utility model, and enforcement of the present utility model more than that.
Claims (9)
1. Manlid of light fuel cross-country bowser, comprise big manhole cover (1), little manhole cover (2) and breathing valve, wherein, top board (3) and lower platen (4) are arranged on the little manhole cover (2), top board (3) is connected by lock (5) with lower platen (4), it is characterized in that: the top at big manhole cover (1) is equipped with back pressure relief valve, and the installed inside of little manhole cover (2) has breathing valve, and described breathing valve is comprehensive anti-overflow breathing valve.
2. Manlid of light fuel cross-country bowser according to claim 1, it is characterized in that: the valve body of described comprehensive anti-overflow breathing valve is positioned at the valve pocket that is surrounded by bonnet, (6) and bottom flange (7), comprise spheroid (8), anti-overflow flap (12), exhaust valve seat (9) and depression bar (10), described spheroid (8) is positioned at the cavity that anti-overflow flap (12) and bottom flange (7) surround, anti-overflow flap (12) comprises air-breathing flap parts (13) and exhaust flap parts (14), air-breathing flap parts (13) and exhaust flap parts (14) are installed on the depression bar (10), and exhaust flap parts (14) are connected with exhaust valve seat (9).
3. Manlid of light fuel cross-country bowser according to claim 2 is characterized in that: described bottom flange profile is a grooved, and two outlimbs are provided with back-fire relief net (11), the contact surface nick of bottom flange (7) and spheroid (8).
4. Manlid of light fuel cross-country bowser according to claim 2 is characterized in that: the profile of described anti-overflow flap (12) and spheroid contact surface is for bowl-shape.
5. Manlid of light fuel cross-country bowser according to claim 1, it is characterized in that: described back pressure relief valve is connected with the cover plate of big manhole cover (1) by the flange (15) of its both sides, its valve body is positioned at guard shield (16), side neck (17), in the valve pocket that valve gap (18) surrounds, mainly by flap (19), valve rod (20), spring (21) and valve seat (22) are formed, one end of valve rod (20) connects flap (19), the bottom surface of flap (19) is connected with spring (21), the other end of valve rod (20) is connected with valve seat (22) by pin folder (29), pin folder (29) has packing seal (23) with the contact surface of valve seat, and the valve seat two ends are connected with valve gap (18) by lock bolt (24).
6. Manlid of light fuel cross-country bowser according to claim 5, it is characterized in that: described side neck profile is stepped, and internal diameter increases by rank from top to bottom, and the flap upper surface flushes with side neck first rank, tightly locks the bolt upper surface and is stuck in place, side neck second rank, the bottom flange section is a grooved, central part contracts to tip section, and is stuck in side neck quadravalence inboard, and the bottom flange end face has pressure ring (25), the side is filled with elastomeric material, and there is a circle fire trapping ring (27) the side neck lower end.
7. Manlid of light fuel cross-country bowser according to claim 5 is characterized in that: described guard shield (16) is connected with the flange (15) that is positioned at the side neck outside by adapter sleeve (26).
8. Manlid of light fuel cross-country bowser according to claim 5 is characterized in that: seal ring (28) is all established in described side neck the 3rd rank and pressure ring lower surface.
9. Manlid of light fuel cross-country bowser according to claim 5 is characterized in that: the response pressure of described back pressure relief valve is-20kPa for-10kPa, complete opening pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020245849 CN201694573U (en) | 2010-07-02 | 2010-07-02 | Manhole cover of light off-road fuel vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020245849 CN201694573U (en) | 2010-07-02 | 2010-07-02 | Manhole cover of light off-road fuel vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201694573U true CN201694573U (en) | 2011-01-05 |
Family
ID=43395815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020245849 Expired - Lifetime CN201694573U (en) | 2010-07-02 | 2010-07-02 | Manhole cover of light off-road fuel vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201694573U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101857184A (en) * | 2010-07-02 | 2010-10-13 | 北京三兴汽车有限公司 | Manlid of light fuel cross-country bowser |
| CN110864149A (en) * | 2019-11-07 | 2020-03-06 | 卓越紧固***（上海）有限公司 | Manufacturing method of breather valve |
-
2010
- 2010-07-02 CN CN 201020245849 patent/CN201694573U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101857184A (en) * | 2010-07-02 | 2010-10-13 | 北京三兴汽车有限公司 | Manlid of light fuel cross-country bowser |
| CN101857184B (en) * | 2010-07-02 | 2012-11-21 | 北京三兴汽车有限公司 | Manlid of light fuel cross-country bowser |
| CN110864149A (en) * | 2019-11-07 | 2020-03-06 | 卓越紧固***（上海）有限公司 | Manufacturing method of breather valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201694573U (en) | Manhole cover of light off-road fuel vehicle | |
| CN201390149Y (en) | Totally enclosed oil tank | |
| CN101857184B (en) | Manlid of light fuel cross-country bowser | |
| CN201376885Y (en) | Hook type sealing cover of train tank vehicle fluid assembling-disassembling arm | |
| CN202542237U (en) | Large floating oil bag | |
| CN201346991Y (en) | Automobile anti-spilling fuel tank cap and oil filling port | |
| EP2066937A1 (en) | Liquid tank venting system | |
| CN201736800U (en) | Fuel tank cap | |
| CN107696853A (en) | A kind of automobile fuel filler wicket | |
| CN202464017U (en) | Fuel tank limiting oil level height and resisting leakage | |
| CN206592554U (en) | A kind of upset fluid stopping breather valve for automotive oil tank | |
| CN205736934U (en) | Fuel tank device | |
| CN216332802U (en) | Unmanned aerial vehicle anti-overflow device | |
| CN204432376U (en) | A kind of new type of safe fuel tank | |
| CN202053885U (en) | Gasoline tank cap of gasoline engine | |
| CN204774622U (en) | Vice lid of car oil tank | |
| CN212195077U (en) | Anti-overflow valve for oil tank | |
| CN201856633U (en) | Buffer of oil filling pipe of automobile oil tank | |
| CN203401959U (en) | Fuel tank of car | |
| CN212758052U (en) | Diesel vehicle tail gas treatment liquid filling device | |
| CN209242663U (en) | Automotive fluid system fill cup | |
| CN206475740U (en) | A kind of explosion-proof nylon alloy fuel tank | |
| CN219911330U (en) | Hydraulic oil tank structure of mining dump truck | |
| CN220622300U (en) | Oil channeling prevention device for hydraulic oil tank | |
| CN201568174U (en) | Dump valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110105 Effective date of abandoning: 20130227 |
|
| RGAV | Abandon patent right to avoid regrant |