CN202321108U - Anti-overflow oil tank cover - Google Patents
Anti-overflow oil tank cover Download PDFInfo
- Publication number
- CN202321108U CN202321108U CN2011204540250U CN201120454025U CN202321108U CN 202321108 U CN202321108 U CN 202321108U CN 2011204540250 U CN2011204540250 U CN 2011204540250U CN 201120454025 U CN201120454025 U CN 201120454025U CN 202321108 U CN202321108 U CN 202321108U
- Authority
- CN
- China
- Prior art keywords
- movable block
- support
- oil tank
- steel ball
- oil spill
- 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
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Abstract
The utility model provides an anti-overflow oil tank cover, which comprises an outer cover and an inner cover, wherein an oil anti-overflow assembly is arranged in a spaced surrounded by the outer cover and the inner cover. The improvement on the anti-overflow oil tank cover lies in that the oil anti-overflow assembly consists of a support frame, a steel ball, a movable block and a baffle plate, when an oil tank is inclined, the steel ball rolls under the gravity effect, the movable block is pushed to move for sealing a vent hole while the steel ball rolls, and fuel oil is prevented from outwards overflowing from the vent hole. The anti-overflow oil tank cover has the beneficial effects that when the oil tank is not inclined or reversely placed, the air pressure between the the inside of the oil tank and atmosphere can be effectively balanced, when the oil tank is inclined, the steel ball moves under the self gravity effect and props up the movable block so that the vent hole arranged in the support frame is sealed, the fuel oil overflowing is prevented, when the oil tank restores from the inclined state to the horizontal state, the steel ball and the movable block both return to the original position, gas communication can be realized again, the structure is simple, the cost is low, and the practicability and the safety are high.
Description
Technical field
The utility model relates to a kind of fuel lid, relates in particular to a kind of preventing oil spill case lid.
Background technology
In the prior art,, all be provided with air-pressure balancing device on the fuel tank for the air pressure in the trim tank; And air-pressure balancing device generally all is integrated with fuel lid, still, and in equilibrium air pressure; To prevent that also the fuel oil in the fuel tank from outwards overflowing this type device of the prior art, or complex structure through air flue; The preventing oil spill effect is bad, is difficult to satisfy the demands.
The utility model content
To the problem in the background technology; The utility model provides a kind of preventing oil spill case lid; Comprise enclosing cover, inner cap, in the space that enclosing cover and inner cap surrounded, be provided with the preventing oil spill assembly, its improvement is: the preventing oil spill assembly is made up of support, steel ball, movable block and baffle plate;
Inner cap with bracket clamp on the inner end surface of enclosing cover;
Support lower surface structure forms a groove, and baffle plate is with the opening part sealing of groove, and groove and baffle plate enclosed space form a cavity, and steel ball places in the cavity, and the support upper surface is provided with through hole, and through hole is with inside cavity and atmosphere;
The movable block lower end is provided with circumferential projection, and movable block top places in the through hole, and the movable block bottom places in the cavity, free-running fit between movable block and the through hole, and movable block can slide up and down; When circumferential projection contacted with support, the gap between movable block and the through hole was closed;
The baffle plate inner end surface is the circular conical surface of indent, and baffle plate is provided with axially extending bore, and axially extending bore is communicated with fuel tank internal and cavity.
In order to increase the airtight effect of movable block, the utility model has also been done following improvement: movable block is socketed with seal ring outward, and the position of seal ring is between circumferential projection and support.
In order to improve the alerting ability of movable block, the utility model has also been done following improvement: the movable block upper surface is provided with groove, is provided with a spring in the groove, and the spring upper end contacts with the inner end surface of support.
In order to improve the air-tightness between inner cap and the support, the utility model has also been done following improvement: be provided with O-ring seals between inner cap and the support.
Also be provided with general-duty locking plate on the existing fuel lid on the utility model, the position of locking plate and preventing oil spill assembly concerns as follows: inner cap is provided with locking plate, and locking plate is positioned at the baffle plate below.
In order to improve the efficient of constitutional balance air pressure, the utility model has also been done following improvement: said axially extending bore is a plurality of.
The useful technique effect of the utility model is: not run-off the straight or when being inverted of fuel tank, but the air pressure between active balance fuel tank internal and the atmosphere, when fuel tank tilts; Steel ball is moved under the self gravitation effect and with movable block jack-up, makes the through hole sealing on the support, prevents that fuel oil from overflowing; When fuel tank during by heeling condition Reversion Level state; Steel ball and movable block be return all, and gas can be communicated with again, and be simple in structure, with low cost, practical, safe.
Description of drawings
Fig. 1, the utility model structural representation one (structure when on the movable block spring not being set);
Fig. 2, the utility model structural representation two (structure when movable block is provided with spring);
The partial enlarged drawing of position shown in the circle among Fig. 3, Fig. 2;
Each position component scheme drawing when Fig. 4, fuel tank inclination;
The partial enlarged drawing of position shown in the circle among Fig. 5, Fig. 4.
The specific embodiment
A kind of preventing oil spill case lid comprises enclosing cover 1, inner cap 2, in the space that enclosing cover 1 and inner cap 2 are surrounded, is provided with the preventing oil spill assembly, and its improvement is: the preventing oil spill assembly is made up of support 3, steel ball 4, movable block 5 and baffle plate 6; Inner cap 2 is stuck in support 3 on the inner end surface of enclosing cover 1; Support 3 lower surface structures form a groove, and baffle plate 6 is with the opening part sealing of groove, and groove and baffle plate 6 enclosed spaces form a cavity 3-1, and steel ball 4 places in the cavity 3-1, and support 3 upper surfaces are provided with through hole 3-2, and through hole 3-2 is with cavity 3-1 inside and atmosphere; Movable block 5 lower ends are provided with circumferential projection 5-1, and movable block 5 tops place in the through hole 3-2, and movable block 5 bottoms place in the cavity 3-1, free-running fit between movable block 5 and the through hole 3-2, and movable block 5 can slide up and down; When circumferential projection 5-1 contacted with support 3, the gap between movable block 5 and the through hole 3-2 was closed; Baffle plate 6 inner end surfaces are the circular conical surface of indent, and baffle plate 6 is provided with axially extending bore 6-1, and axially extending bore 6-1 is communicated with fuel tank internal and cavity 3-1.
The principle of work of the utility model is: when the fuel tank position level; Steel ball 4 all remains static under the self gravitation effect with movable block 5; Gap between movable block 5 and the through hole 3-2 can let gas pass through; Outside atmosphere just gets in the cavity 3-1 through through hole 3-2, is communicated with fuel tank internal through the axially extending bore 6-1 on the baffle plate 6 again, and the air pressure of fuel tank internal is played counterbalance effect; When the fuel tank run-off the straight; Steel ball 4 by gravitys move and with movable block 5 jack-up, and when movable block 5 is pushed up when circumferential projection 5-1 contacts with support 3, through hole 3-2 just is closed; Even the air flue that has fuel oil to pass through the bottom gets in the cavity 3-1; Also can not overflow, and fuel tank bevelled angle is big more, the leak tightness of 5 couples of through hole 3-2 of movable block is just good more; When fuel tank during from heeling condition Reversion Level state; Steel ball 4 is return at first, loses movable block 5 return under the double action of the difference of pressure of self gravitation and inner and outer air pressure that steel ball 4 supports, and through hole 3-2 opens again; The utility model can be made rapid reaction to the change in location of fuel tank; Since simple in structure, even frequently switch the open and close state of through hole 3-2, still can guarantee the requirement of safety.
In order to improve the leak tightness between movable block 5 and the through hole 3-2 further; The utility model has also been done following improvement: the movable block 5 outer seal ring 5-2 that are socketed with; The position of seal ring 5-2 is between circumferential projection 5-1 and support 3; Seal ring 5-2 forms flexible contact, better tightness to the gap between movable block 5 and the through hole 3-2.
Preamble has been addressed; When fuel tank is replied when being horizontality by heeling condition, movable block 5 is returns under the double action of the difference of pressure of self gravitation and inner and outer air pressure, in order to improve the return efficient of movable block 5; Strengthen the sensitieness of structure action to the fuel tank position; The utility model has also adopted following improvement: movable block 5 upper surfaces are provided with groove, are provided with a spring 5-3 in the groove, and spring 5-3 upper end contacts with the inner end surface of support 3.
In order to improve the air-tightness between inner cap 2 and the support 3, also can between inner cap 2 and support 3, O-ring seals 8 be set.
Make the ventilation efficiency of time spent in order to improve the preventing oil spill assembly playing equilibrium air pressure, the axially extending bore 6-1 on the utility model baffle plate 6 is set to a plurality of.
Claims (6)
1. preventing oil spill case lid; Comprise enclosing cover (1), inner cap (2); In the space that enclosing cover (1) and inner cap (2) are surrounded, be provided with the preventing oil spill assembly, it is characterized in that: the preventing oil spill assembly is made up of support (3), steel ball (4), movable block (5) and baffle plate (6);
Inner cap (2) is stuck in support (3) on the inner end surface of enclosing cover (1);
Support (3) lower surface structure forms a groove; Baffle plate (6) is with the opening part sealing of groove; Groove and baffle plate (6) enclosed space forms a cavity (3-1); Steel ball (4) places in the cavity (3-1), and support (3) upper surface is provided with through hole (3-2), and through hole (3-2) is with cavity (3-1) inside and atmosphere;
Movable block (5) lower end is provided with circumferential projection (5-1); Movable block (5) top places in the through hole (3-2); Movable block (5) bottom places in the cavity (3-1), free-running fit between movable block (5) and the through hole (3-2), and movable block (5) can slide up and down; When circumferential projection (5-1) and support (3) when contacting, the gap between movable block (5) and the through hole (3-2) is closed;
Baffle plate (6) inner end surface is the circular conical surface of indent, and baffle plate (6) is provided with axially extending bore (6-1), and axially extending bore (6-1) is communicated with fuel tank internal and cavity (3-1).
2. preventing oil spill case lid according to claim 1 is characterized in that: movable block (5) is outer to be socketed with seal ring (5-2), and the position of seal ring (5-2) is between circumferential projection (5-1) and support (3).
3. preventing oil spill case lid according to claim 1 and 2 is characterized in that: movable block (5) upper surface is provided with groove, is provided with a spring (5-3) in the groove, and spring (5-3) upper end contacts with the inner end surface of support (3).
4. preventing oil spill case lid according to claim 1 is characterized in that: be provided with O-ring seals (8) between inner cap (2) and the support (3).
5. preventing oil spill case lid according to claim 1 is characterized in that: inner cap (2) is provided with locking plate (7), and locking plate (7) is positioned at baffle plate (6) below.
6. preventing oil spill case lid according to claim 1 is characterized in that: said axially extending bore (6-1) is for a plurality of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204540250U CN202321108U (en) | 2011-11-16 | 2011-11-16 | Anti-overflow oil tank cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204540250U CN202321108U (en) | 2011-11-16 | 2011-11-16 | Anti-overflow oil tank cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202321108U true CN202321108U (en) | 2012-07-11 |
Family
ID=46433098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204540250U Expired - Lifetime CN202321108U (en) | 2011-11-16 | 2011-11-16 | Anti-overflow oil tank cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202321108U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102777296A (en) * | 2012-08-17 | 2012-11-14 | 广西柳工机械股份有限公司 | High-volume utilization rate fuel tank |
| CN106586003A (en) * | 2015-10-14 | 2017-04-26 | 陕西飞机工业（集团）有限公司 | Quick-release type access cover |
| CN106864478A (en) * | 2015-12-11 | 2017-06-20 | 天津辉煌路阳科技有限公司 | Hydraulic point machine fuel tank breather valve |
-
2011
- 2011-11-16 CN CN2011204540250U patent/CN202321108U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102777296A (en) * | 2012-08-17 | 2012-11-14 | 广西柳工机械股份有限公司 | High-volume utilization rate fuel tank |
| CN102777296B (en) * | 2012-08-17 | 2014-07-23 | 广西柳工机械股份有限公司 | High-volume utilization rate fuel tank |
| CN106586003A (en) * | 2015-10-14 | 2017-04-26 | 陕西飞机工业（集团）有限公司 | Quick-release type access cover |
| CN106864478A (en) * | 2015-12-11 | 2017-06-20 | 天津辉煌路阳科技有限公司 | Hydraulic point machine fuel tank breather valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120711 |
|
| CX01 | Expiry of patent term |