CN203198729U - Oil overflow stop valve - Google Patents

Abstract

An oil overflow stop valve comprises a valve body, an elastic piece and a floating plug body, wherein the valve body forms a cavity, a valve plug body matched with the floating plug body is arranged at the upper end of the valve body, the valve plug body is provided with an oil-gas passage and a pipeline enabling the oil-gas passage and the cavity to be communicated, an oil outlet, communicated with the oil-gas passage, of the pipeline and an oil inlet, communicated with the cavity, of the oil-gas passage are arranged in a staggered mode in the axial direction of the valve body, the valve plug body is provided with an oil storage cavity used for storing fuel oil, and the fuel oil in the pipeline flows back to the cavity through the oil storage cavity. According to the oil overflow stop valve, the inner wall of the pipeline has a better function of blocking the fuel oil, the fuel oil entering the pipeline can flow back to the oil storage cavity to be temporally stored under the condition of a large oil overflow amount, and then the fuel oil slowly flows back to the cavity.

Description

A kind of oil spill stop valve

Technical field

The utility model relates to a kind of vehicle anti-dumping oil spilling device, relates in particular to a kind of oil spill stop valve.

Background technology

In order to prevent that self-propelled vehicle from tilting or when overturning, the problem that oil plant leaks occurs, generally all can be on the oil gas vent and the fairway between the Charcoal canister of oil tank of vehicle, install an oil spill stop valve, to when self-propelled vehicle is toppled over, can the mat oil spill stop valve be closed by above-mentioned fairway blocking-up, occur to prevent the situation that oil plant leaks.

At present, oil spill stop valve generally is installed in the higher position of fuel tank, owing to being subjected to the restriction in vehicle body space, the installation site of the Charcoal canister of most of vehicle is lower than the position of oil spill stop valve gas channel, or the pipeline that connects between oil spill stop valve and the carbon canister is lower than the position of oil spill stop valve gas channel, so, when the fuel oil in the fuel tank too much or the fuel oil in the fuel tank when occuring acutely to rock, or fuel tank is not when also closing because of vehicle driving up descending run-off the straight oil spill stop valve, fuel oil in the fuel tank can spill from the oil gas valve port of oil spill stop valve and be entered the pipeline of discharge vaporization system and resulted in blockage by gas channel, cause oil vapour in the fuel tank carbon canister of can not flowing through, or can flow directly into carbon canister from the fuel oil that the oil gas valve port spills, greatly reduce the working ability of activated carbon, cause the discharge vaporization system can not be normal, the actv. operation, and then cause the contaminated environment that leaks of oil vapour, and because fuel oil spills and can't reclaim, this just causes the waste of the energy.

The utility model content

Technical problem to be solved in the utility model is: the fuel oil in the fuel tank that exists in the prior art can spill and enter the pipeline of discharge vaporization system from the oil gas valve port of oil spill stop valve and result in blockage, cause oil vapour in the fuel tank carbon canister of can not flowing through, or can flow directly into carbon canister from the fuel oil that the oil gas valve port spills, greatly reduce the working ability of activated carbon, cause the discharge vaporization system can not be normal, the actv. operation, and then cause the contaminated environment that leaks of oil vapour, and because fuel oil spills and can't reclaim, this just causes the waste of the energy, thereby provides a kind of and can effectively prevent the oil spill stop valve that fuel oil spills from the oil gas valve port.

The above-mentioned technical matters of the utility model is achieved by the following technical programs: a kind of oil spill stop valve, comprise valve body, elastic component and floating plug body, described valve body forms a cavity, the upper end of described valve body is provided with the valve plug body that cooperates with the floating plug body, described valve plug body has gas channel and makes gas channel and the pipeline of cavity connection, the oil inlet that the oil outlet that described pipeline is communicated with gas channel and described pipeline are communicated with cavity is in the setting of staggering of valve axis direction, described valve plug body is provided with for the shoe cream room that stores fuel oil, and by described shoe cream room with the fuel flow returns in the pipeline to cavity.

Further, described pipeline comprises that at least two sections are interconnected and are arranged to forniciform the first pipeline and the second pipeline at the pipeline bearing of trend, and described the first pipeline extends along the basic axis direction of valve body, and described the second pipeline is along the basic horizontal expansion of valve body.

Further, the length of described the first pipeline be oil inlet and oil outlet distance on the valve axis direction 2/3 to 4/5 between.

Further, described shoe cream room around the first pipeline circumferentially arrange and described shoe cream room in the form of a ring.

Further, the upper side wall of described shoe cream room is connected by the first intercommunicating pore with the second pipeline, and the lower wall of described shoe cream room is connected by the second intercommunicating pore with the first pipeline.

Further, described the first intercommunicating pore is funnel-form.

Further, described the second intercommunicating pore is obliquely installed from top to bottom towards the direction of the first pipeline.

Further, the lower wall of described shoe cream room is connected with the second intercommunicating pore and is obliquely installed from top to bottom towards the direction of the first pipeline.

Further, described shoe cream room comprises the guiding wall that is connected and is used for the guiding fuel oil with the first intercommunicating pore.

Further, described the second intercommunicating pore is provided with the one-way conduction structure, described one-way conduction structure comprises the fixing returning spring of baffle plate and lower end that is fixed on the first oil return line sidewall, the center of described baffle plate is provided with through hole, and the upper end of described returning spring is connected with for the spheroid that seals or open described through hole.

Further, described oil outlet is arranged on a end away from the oil gas valve port of gas channel with respect to oil inlet on the gas channel direction.

A kind of oil spill stop valve that the utility model provides, comprise valve body, elastic component and floating plug body, described valve body forms a cavity, the upper end of described valve body is provided with the valve plug body that cooperates with the floating plug body, described valve plug body has gas channel and makes gas channel and the pipeline of cavity connection, the oil inlet that the oil outlet that described pipeline is communicated with gas channel and described pipeline are communicated with cavity is in the setting of staggering of valve axis direction, described valve plug body is provided with for the shoe cream room that stores fuel oil, and by described shoe cream room with the fuel flow returns in the pipeline to cavity.Therefore when the fuel oil in the fuel tank too much or the generation of the fuel oil in the fuel tank when acutely rocking, the part fuel oil may enter pipeline, the oil inlet that the oil outlet that described pipeline is communicated with gas channel and described pipeline are communicated with cavity is in the setting of staggering of valve axis direction, increased the area of contact of fuel oil and pipeline inner wall, make the inwall of pipeline have the effect that better stops fuel oil, and then avoid fuel oil to enter gas channel, fuel oil is difficult to pass through gas channel, flow out from the oil gas valve port, thereby the pipeline of avoiding fuel oil to enter the discharge vaporization system results in blockage, or inflow carbon canister, avoided the oil vapour in the fuel tank can not flow through carbon canister or the generation of the situation that can't be absorbed by the activated carbon in the carbon canister, both save fuel oil, also avoided the pollution to environment.And described valve plug body is provided with for the shoe cream room that stores fuel oil, and by described shoe cream room with the fuel flow returns in the pipeline to cavity, in the situation that oil spillage is larger, can make the fuel flow returns that enters pipeline to shoe cream room, temporary transient savings slowly are back to fuel oil in the cavity again.

Description of drawings

Fig. 1 is the structure cutaway view of oil spill stop valve among a kind of embodiment of providing of the utility model.

Fig. 2 is the structure cutaway view of oil spill stop valve among the another kind of embodiment that provides of the utility model.

Fig. 3 is the structure cutaway view of oil spill stop valve among the another kind of embodiment that provides of the utility model.

The specific embodiment

Clearer for technical matters, technical scheme and beneficial effect that the utility model is solved, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.

In description of the present utility model, it will be appreciated that, term " on ", orientation or the position relationship of the indications such as D score, " left side ", " right side ", " vertically ", " level ", 'fornt', 'back', " interior ", " outward " be based on orientation shown in the drawings or position relationship, only be for convenience of description the utility model and simplified characterization, rather than indication or the hint device of indication or element must have specific orientation, with specific orientation structure and operation, therefore can not be interpreted as restriction of the present utility model.

As shown in Figure 1 to Figure 3, a kind of oil spill stop valve, comprise valve body 1, elastic body 2 and floating plug body 3, described valve body 1 forms a cavity 4, and the bottom of valve body 1 is provided with the opening (not shown), described opening is covered fully by a valve gap 5, described valve gap 5 offers the valve cover hole 50 that cavity 4 is communicated with the fuel tank inner chamber, and the fuel oil in fuel tank is too much, and perhaps fuel oil occurs acutely to rock, perhaps fuel tank run-off the straight, fuel oil all might flow into the cavity 4 of oil spill stop valve from the inner chamber of fuel tank.

Described floating plug body 3 is arranged in the cavity 4 of valve body 1 at the axis direction of valve body 1, and is supported in movably on the described valve gap 5 by elastic component 2, and in the present embodiment, described elastic component 2 is spring.When cavity 4 interior inflow some fuel oils, floating plug body 3 is subject to the buoyancy of fuel oil, and floating plug body 3 can move at the axis direction of valve body 1, and the top of described floating plug body 3 has a floating plug head 30.

The upper end of described valve body 1 is provided with the valve plug body 6 that cooperates with floating plug body 3, valve plug body 6 has the valve plug chamber 60 that cooperates with floating plug head 30, described floating plug head 30 is used for sealing or opens valve plug chamber 60, particularly, when floating plug body 3 is subject to the buoyancy of fuel oil, floating plug body 3 meetings upward movement on the axis direction of valve body 1, described floating plug head 30 sealing valve plug chambeies 60 stop in the fuel inlet valve cock body 6; When floating plug body 3 no longer was subject to the buoyancy of fuel oil, floating plug body 3 was subject to the restoring force effect of elastic component, and floating plug body 3 can move downward at the axis direction of valve body 1, and described floating plug head 30 is opened valve plug chamber 60.

Described valve plug body 6 has gas channel 7 and makes gas channel 7 and the pipeline 8 of cavity 4 connections, the oil inlet 84 that the oil outlet 83 that described pipeline 8 is communicated with gas channel 7 and described pipeline 8 are communicated with cavity 4 is in the setting of staggering of valve body 1 axis direction, when the fuel oil in the fuel tank too much or the fuel oil in the fuel tank when occuring acutely to rock, fuel oil all might flow into from the inner chamber of fuel tank the cavity 4 of oil spill stop valve, the part fuel oil may and then can enter pipeline 8, the oil inlet 84 that the oil outlet 83 that described pipeline 8 is communicated with gas channel and described pipeline 8 are communicated with cavity 4 is in the setting of staggering of valve body 1 axis direction, increased the area of contact of fuel oil and pipeline 8 inwalls, make the inwall of pipeline 8 have the effect that better stops fuel oil, and then avoid fuel oil to enter gas channel 7, and, described oil outlet 83 is on gas channel 7 directions, be arranged on a end away from the oil gas valve port 70 of gas channel with respect to oil inlet 84, fuel oil is difficult to by gas channel 7, flow out from oil gas valve port 70, thereby the pipeline of avoiding fuel oil to enter the discharge vaporization system results in blockage, or inflow carbon canister, avoided the oil vapour in the fuel tank can not flow through carbon canister or the generation of the situation that can't be absorbed by the activated carbon in the carbon canister, both save fuel oil, also avoided the pollution to environment.

The oil inlet 84 that the oil outlet 83 that described pipeline 8 is communicated with gas channel 7 and described pipeline 8 are communicated with cavity 4 is in the setting of staggering of valve body 1 axis direction, exactly, the line of centers of described oil outlet 83 does not overlap with the line of centers of oil inlet 84, makes further the inwall of pipeline 8 have the effect that better stops fuel oil.

Described valve plug body 6 is provided with for the shoe cream room 9 that stores fuel oil, and by described shoe cream room with the fuel flow returns in the pipeline 8 to cavity 4, sometimes in the situation that oil spillage is larger, can make the fuel flow returns that enters pipeline to shoe cream room 9, temporary transient savings slowly are back to fuel oil in the cavity 4 again.

In an embodiment of the present utility model, described pipeline 8 is arranged to bending at the pipeline bearing of trend, and forniciform pipeline 8 has increased the area of contact of fuel oil and pipeline 8, makes its inwall have the effect that better stops fuel oil.

Described pipeline 8 comprises that at least two sections are interconnected and are arranged to the pipeline 8 that forniciform the first pipeline 81 and the second pipeline 82, the first pipelines 81 and the second pipeline 82 form at the pipeline bearing of trend and are bending, have increased the area of contact of fuel oil and pipeline inner wall.Further, described the first pipeline 81 extends along valve body 1 basic axis direction, and described the second pipeline is along valve body 1 basic horizontal expansion, and the first pipeline 81 and the 82 vertical settings of the second pipeline are conducive to pipeline 8 inwalls and stop better fuel oil.

In order to prevent that fuel oil from entering gas channel 7, described the first pipeline 81 requires to extend certain distance at the axis direction of valve body 1, in the present embodiment, the length of described the first pipeline 81 be oil inlet 84 and oil outlet 83 distance on valve body 1 axis direction 2/3 to 4/5 between.

In an embodiment of the present utility model, described shoe cream room 9 around the first pipeline 81 circumferentially arrange and described shoe cream room 9 in the form of a ring, described shoe cream room 9 has enough spaces and is used for the fuel oil that temporary transient storage enters pipeline 8, fuel oil slowly is back in the cavity 4 again.

In an embodiment of the present utility model, an end of described the first pipeline 81 connects the oil inlet 84 that is communicated with cavity 4, and an end of described the second pipeline 82 connects the oil outlet 83 that is communicated with gas channel 7.

In the embodiment that the utility model provides, the upper side wall 93 of described shoe cream room 9 is connected by the first intercommunicating pore 91 with the second pipeline 82, and the lower wall 94 of described shoe cream room 9 is connected by the second intercommunicating pore 92 with the first pipeline 81.The first intercommunicating pore 91 is used for fuel flow returns with the second pipeline 82 to shoe cream room 9.Further, described the first intercommunicating pore 91 is connected along circumferential sidewall with shoe cream room 9, can realize to fuel oil the effect of water conservancy diversion.In order to allow fuel oil be back to shoe cream room from the second pipeline better, described the first intercommunicating pore 91 is funnel-form, to realize enlarging the sectional area of the first intercommunicating pore 91.

Described the second intercommunicating pore 92 is obliquely installed from top to bottom towards the direction of the first pipeline 81, the two-port of described the second intercommunicating pore 92 connects respectively shoe cream room 9 and the first pipeline 81, as shown in Figure 1, the port that described the second intercommunicating pore 92 and shoe cream room 9 connects is in the position of relative top, described the second intercommunicating pore 92 and the port that the first pipeline 81 connects are in the position of relative below, so fuel oil can successfully flow out to the first pipeline 81 from shoe cream room 9.

Further, the lower wall 94 of described shoe cream room 9 is connected with the second intercommunicating pore 92 and is obliquely installed from top to bottom towards the direction of the first pipeline 81, be horizontally disposed with respect to lower wall 94, fuel oil can not accumulate on the lower wall, and the fuel oil that temporarily is stored in shoe cream room can slowly be back in the cavity.Particularly, described lower wall 94 has identical angle of inclination with the second intercommunicating pore 92.

In another embodiment that the utility model provides, described shoe cream room 9 comprises the guiding wall 95 that is connected and is used for the guiding fuel oil with the first intercommunicating pore 91, as preferably, described guiding wall 95 is obliquely installed, and the two ends of guiding wall connect respectively the first intercommunicating pore 91 and the second intercommunicating pore 92, and fuel oil is after passing through the first intercommunicating pore 91, guided by guiding wall, in following current to the second intercommunicating pore 92, in the situation that oil spillage is larger, can make better the fuel flow returns that enters pipeline 8 to shoe cream room 9.

In order to make fuel oil in the process that flows into the first pipeline 81, flow into as little as possible shoe cream room 9, the sectional area of described the second intercommunicating pore 92 is less than the sectional area of the first pipeline 81, and it is little that the diameter of described the second intercommunicating pore 92 should be tried one's best, as preferably, the diameter of the second intercommunicating pore 92 is at 0.5mm～1mm.The sectional area of the first pipeline 81 is relatively large, is to lead to oil mass in order to guarantee, the sectional area less of the second intercommunicating pore 92 is in order not allow liquid fuel enter in the shoe cream room 9 by the second intercommunicating pore 92.

In another embodiment of the present utility model, be provided with the one-way conduction structure in described the second intercommunicating pore 92, described one-way conduction structure comprises the fixing returning spring 922 of baffle plate 921 and lower end that is fixed on the second intercommunicating pore 92 sidewalls, the center of described baffle plate 921 is provided with through hole 923, and the upper end of described returning spring 922 is connected with for the spheroid 924 that seals or open described through hole 923.When fuel oil passed through through hole 923 from top to down, described spheroid 924 was opened through hole 923, and fuel oil can pass through the second intercommunicating pore 92, was back in the cavity 4 of valve body, and after fuel flow returns finished, spheroid 924 was subject to the restoring force of returning spring 922, self-closed through hole 923; When fuel oil passed through through hole 923 from below to up, described spheroid 924 kept the state of sealing through hole 923, and at this moment fuel oil can not pass through from the second intercommunicating pore 92.Fuel oil can only flow into from the first intercommunicating pore 91 like this, flows out from the second intercommunicating pore 92, can not reverse circulated, so the one-way conduction structure has realized the one-way conduction of the second intercommunicating pore 92.

The above only is preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of within spirit of the present utility model and principle, doing, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.

Claims (11)

1. oil spill stop valve, comprise valve body (1), elastic component (2) and floating plug body (3), described valve body (1) forms a cavity (4), the upper end of described valve body (1) is provided with the valve plug body (6) that cooperates with floating plug body (3), described valve plug body (6) has gas channel (7) and makes gas channel (7) and the pipeline (8) of cavity (4) connection, it is characterized in that, the oil inlet (84) that the oil outlet (83) that described pipeline (8) is communicated with gas channel (7) and described pipeline (8) are communicated with cavity (4) is in the setting of staggering of valve body (1) axis direction, described valve plug body (6) is provided with for the shoe cream room (9) that stores fuel oil, and by described shoe cream room with the fuel flow returns in the pipeline (8) to cavity (4).

2. oil spill stop valve as claimed in claim 1, it is characterized in that, described pipeline (8) comprises that at least two sections are interconnected and are arranged to forniciform the first pipeline (81) and the second pipeline (82) at pipeline (8) bearing of trend, described the first pipeline (81) extends along the basic axis direction of valve body (1), and described the second pipeline (82) is along the basic horizontal expansion of valve body (1).

3. oil spill stop valve as claimed in claim 2 is characterized in that, the length of described the first pipeline (81) be oil inlet (84) and oil outlet (83) distance on the valve axis direction 2/3 to 4/5 between.

4. oil spill stop valve as claimed in claim 3 is characterized in that, described shoe cream room (9) around the first pipeline (81) circumferentially arrange and described shoe cream room (9) in the form of a ring.

5. oil spill stop valve as claimed in claim 4, it is characterized in that, the upper side wall (93) of described shoe cream room (9) is connected by the first intercommunicating pore (91) with the second pipeline (82), and the lower wall (94) of described shoe cream room (9) is connected by the second intercommunicating pore (92) with the first pipeline (81).

6. oil spill stop valve as claimed in claim 5 is characterized in that, described the first intercommunicating pore (91) is funnel-form.

7. oil spill stop valve as claimed in claim 5 is characterized in that, described the second intercommunicating pore (92) is obliquely installed from top to bottom towards the direction of the first pipeline (81).

8. oil spill stop valve as claimed in claim 7 is characterized in that, the lower wall (94) of described shoe cream room (9) is connected with the second intercommunicating pore (92) and is obliquely installed from top to bottom towards the direction of the first pipeline (81).

9. oil spill stop valve as claimed in claim 5 is characterized in that, described shoe cream room (9) comprises the guiding wall (95) that is connected and is used for the guiding fuel oil with the first intercommunicating pore (91).

10. oil spill stop valve as claimed in claim 5, it is characterized in that, described the second intercommunicating pore (92) is provided with the one-way conduction structure, described one-way conduction structure comprises the fixing returning spring (922) of baffle plate (921) and lower end that is fixed on the first oil return line sidewall, the center of described baffle plate (921) is provided with through hole (923), and the upper end of described returning spring (922) is connected with for the spheroid (924) that seals or open described through hole.

11. such as the described oil spill stop valve of any one in the claim 1 to 10, it is characterized in that, described oil outlet (83) is arranged on a end away from the oil gas valve port (70) of gas channel with respect to oil inlet (84) on gas channel (7) direction.

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