CN209524117U - A kind of oil tank liquid level control valve of integrated check valve - Google Patents
A kind of oil tank liquid level control valve of integrated check valve Download PDFInfo
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- CN209524117U CN209524117U CN201920103304.9U CN201920103304U CN209524117U CN 209524117 U CN209524117 U CN 209524117U CN 201920103304 U CN201920103304 U CN 201920103304U CN 209524117 U CN209524117 U CN 209524117U
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- valve
- valve block
- valve body
- liquid level
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Abstract
A kind of oil tank liquid level control valve of integrated check valve, including upper valve body and lower valve body；Upper valve body is connected with lower valve body limits a cavity, the first venthole is equipped at the top of upper valve body, upper valve body side surface is equipped with liquid level window, and liquid level window is connected to fuel tank；Inside cavity is equipped with the first float, the second float and spring, and the first float is equipped with the first valve block and the second venthole；Second float is set to below first float and is attached thereto；Second float upper end is equipped with the second valve block, and the lower end of the upper end of connecting spring below the second float, spring is equipped with spring base；The bottom of lower valve body sets oil return opening and umbrella valve block, and umbrella valve block includes umbrella stem and round valve block, and the top and bottom of umbrella stem are connect with lower valve body and round valve block respectively, and round valve block is located at the lower end of oil return opening.The utility model is accurately controlled the adding amount of fuel oil by umbrella valve block and liquid level window, and umbrella valve block can also ensure that fuel oil unidirectionally flows back, and avoids fuel oil leakage at danger；And structure is simple, production cost is low.
Description
Technical field
The utility model relates to technical field of automobile parts, and in particular to a kind of oil tank liquid level control of integrated check valve
Valve.
Background technique
Five discharge standard fuel tank of vehicle of state is generally all with breather valve (code name GVV), guarantee normal vehicle operation at present
When fuel tank ventilatory function.There was only normal ventilation function, the automobile of six standard of state compared to five discharge standard automotive oil tank breather valve of state
Fuel tank increases oiling discharge vaporization and adding amount control requires.Fluid level control valve (code name FLVV) realizes fuel up time control
Adding amount processed reduces oiling steam and enters the amount of canister, meets the requirement of oiling Steam Recovery.
Although having had already appeared the control valve for meeting six standard automobile fuel tank of state in the prior art, asked there are still some
Topic.For example, the control of fuel tank adding amount is not accurate enough, and structure is complicated, and production cost is higher etc..
Utility model content
To solve above-mentioned problems of the prior art, the utility model provides a kind of oil tank liquid level of integrated check valve
Control valve can accurately control the adding amount of fuel tank, and structure is simple, easy for installation, at low cost.
To reach above-mentioned technical effect, the utility model adopts the following technical solution:
A kind of oil tank liquid level control valve of integrated check valve, including upper valve body and lower valve body；
The upper valve body is connected with the lower valve body limits a cavity, and the first ventilation is equipped at the top of the upper valve body
The side in hole, the upper valve body is equipped with liquid level window, and the liquid level window is connected to fuel tank；
The inside cavity be equipped with the first float, the second float and spring, first float be equipped with the first valve block and
Second venthole；First valve block can be bonded with the upper valve body, and second float is set to below first float
And it is connect with first float, and the two can relatively move；
Second float upper end is equipped with the second valve block, and the upper end of the spring is connected below second float, described
The lower end of spring is equipped with spring base, and the spring base is set to the lower valve body bottom；
The bottom of the lower valve body sets oil return opening and umbrella valve block, and the umbrella valve block includes umbrella stem and round valve block, the umbrella
The upper end of bar passes through and the oil return opening and connect with the lower valve body, the lower end stretching cavity of the umbrella valve block and with it is described
Round valve block connection；The circle valve block is located at the lower end of the oil return opening, and the circle valve block can open or close described
Oil return opening.
Further, the lower part of the upper valve body is equipped with flange, the flange and the upper valve body by integral forming.
Further, first valve block is downwardly convex disc, and first valve block is bonded with the upper valve body
When can generate sucker power.
Further, first valve block is equipped with location hole, and first float is equipped with positioning column, the location hole
It is correspondingly arranged with the positioning column, first valve block is connected by the location hole and the positioning column and first float
It connects.
Further, first float is equipped with sliding slot, and the sliding slot is equipped with chute buckle, and second float is logical
The chute buckle is crossed to connect with first float；First float and second float can pass through the sliding slot phase
To movement.
Further, second valve block is equipped with briquetting, and second valve block is floating with described second by the briquetting
Son connection.
Compared with prior art, a kind of advantageous effects of the utility model are as follows: integrated check valve of the utility model
Oil tank liquid level control valve, adding amount when oiling can be accurately controlled by the common cooperation of umbrella valve block and liquid level window,
The setting of umbrella valve block can also ensure that fuel oil unidirectionally flows back into fuel tank, avoids fuel oil and is made from fuel tank to one-way control valve reflux
At danger；And the utility model has the advantages of simple structure, greatly reduces production cost.
Detailed description of the invention
Fig. 1 is the schematic diagram of the section structure of the utility model embodiment.
In figure: 1-upper valve body, the 2-the first float, the 3-the first valve block, 4-briquettings, the 5-the second valve block, 6-flanges,
7-the second float, 8-springs, 9-lower valve bodies, 10-umbrella valve blocks.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
The technical solution of the utility model embodiment is clearly and completely described in the attached drawing of type embodiment.Obviously, described
Embodiment is a part of the embodiment of the utility model, instead of all the embodiments.Based on described the utility model
Embodiment, those of ordinary skill in the art's every other embodiment obtained, fall within the protection scope of the utility model.
The technical solution of the utility model is described in further detail below in conjunction with Figure of description.
As shown in Figure 1, a kind of oil tank liquid level control valve of integrated check valve, including upper valve body 1 and lower valve body 9；
Specifically, the first venthole, the first venthole connection external world and inside cavity are equipped at the top of upper valve body 1；Upper valve body 1
Side be equipped with liquid level window, liquid level window is connected to fuel tank；
Upper valve body 1 and lower valve body 9 are connected by a snap, and limit a cavity；Inside cavity be equipped with the first float 2,
Second float 7 and spring 8；First float 2 is equipped with the first valve block 3 and the second venthole, and the first valve block 3 can be with upper valve body 1
It is bonded and closes the lower end of the first venthole, the second float 7 is set to 2 lower section of the first float and connect with the first float 2, and two
Person can relatively move up and down；
The upper end of second float 7 is equipped with the second valve block 5, the upper end of 7 lower section connecting spring 8 of the second float, the lower end of spring 8
Equipped with spring base, spring base is used to support spring 8, and spring base is set to 9 bottom of lower valve body；
The bottom of lower valve body 9 sets oil return opening and umbrella valve block 10, and umbrella valve block 10 includes umbrella stem and round valve block, the upper end of umbrella stem
It is connect across oil return opening and with lower valve body 9, the lower end of umbrella valve block 10 is stretched out cavity and connect with round valve block；Round valve block is located at
The lower end of oil return opening, round valve block can open or close oil return opening；
Umbrella stem and round valve block are elastic material, and round valve block is elastic sheet；Under normal condition, round valve block is complete
It is bonded oil return opening lower end, is turned off；When cavity is there are when fuel oil, fuel oil applies round valve block under its own gravity
Pressure, makes the downward deformation in the edge of round valve block, and open oil return opening, fuel oil is made to flow into fuel tank out of cavity；Fuel oil is complete in cavity
After portion flows to fuel tank, round valve block is no longer by gravity, and by its own characteristic, deformation is replied at the edge of round valve block, returns to
Initial position is bonded oil return opening lower end, closes oil return opening.
Preferably, the lower part of upper valve body 1 is equipped with flange 6, and flange 6 and upper valve body 1 are integrally formed；By the way that flange 6 is welded
On fuel tank and then one-way control valve is mounted on fuel tank.
Optionally, the first valve block 3 is downwardly convex disc, and the first valve block 3 can generate suction when being bonded with upper valve body 1
Disk power, to guarantee the first ventilation bore closure；When adding amount reaches liquid level window, the first float 2 drives under the action of buoyancy
First valve block 3 moves upwardly together, until the first valve block 3 is bonded with upper valve body 1 and closes the lower end of the first venthole, fuel tank
It is closed with extraneous channel, tank internal pressure increased dramatically, and oiling resistance causes greatly fuel oil to accumulate in oil filling pipe, jump of refueling
Rifle, refueling terminates.
In some embodiments of the utility model, the first valve block 3 is equipped with location hole, and the first float 2 is equipped with positioning
Column, location hole are correspondingly arranged with positioning column, and the first valve block 3 is connect by location hole and positioning column with the first float 2, are therefore ensured that
First valve block 3 can accurately connect the first float 2.
Optionally, the lower end inside of the first float 2 is equipped with sliding slot, and sliding slot is equipped with chute buckle, the upper end of the second float 7
Outside is connect by chute buckle with the first float 2；Under the effect of external force, the first float 2 and the second float 7 can pass through cunning
Slot relative movement.
In other embodiments of the utility model, the second valve block 5 is equipped with briquetting 4, and the second valve block 5 passes through briquetting 4
It is connect with the second float 7, the second valve block 5 and the second float 7 is made to form one, it can be together with when the second float 7 moves up and down
Two valve blocks 5 move together.
When refueling for fuel tank, fill level reaches the liquid level window on upper valve body 1, and fuel oil enters cavity by liquid level window,
First float 2 and the second float 7 overcome under spring force and buoyancy its own gravity float, until the first valve block 3 with it is upper
First venthole at 1 top of valve body is bonded and is turned off, and the main air passage of fuel tank is closed, and refueling process generates fuel-steam amount
Larger, oily loading pressure rapid increase, oiling resistance causes greatly fuel oil to accumulate in oil filling pipe, refuels and jump rifle, refuel eventually
Only；The adding amount control of the fuel tank of different capabilities can be applicable in when production by adjusting the height of liquid level window on upper valve body 1, is made
It is wide with range.
In vehicle driving, as liquid level continues to decline in fuel tank, it is set to 9 bottom circular valve block of lower valve body fuel oil in the cavity
It is moved down under gravity, oil return opening is opened, and the intracorporal fuel oil of chamber flows into fuel tank by cavity；Cavity internal buoyancy disappears, and second
Float 7 is under the effect of gravity along the sliding slot decline of 2 inside of the first float, and compressed spring 8, the second valve block 5 and the first float 2 are de-
From the lower end of the second venthole on the first float 2 is opened, and fuel tank internal gas is externally ventilated by the second venthole；Fuel tank
Interior pressure is gradually reduced until its internal and external pressure difference tends to balance, and the first float 2 overcomes the first valve block 3 to act under the effect of gravity
Suction on upper valve body 1 is declined along the second float 7 by sliding slot and opens the first venthole, and fluid level control valve is again at this time
It opens, the gas in fuel tank passes through liquid level window, the first venthole and external holding circulation.
A kind of oil tank liquid level control valve of integrated check valve of the utility model passes through the common of umbrella valve block and liquid level window
Cooperation can be accurately controlled adding amount when oiling, and the setting of umbrella valve block can also ensure that fuel oil unidirectionally flows back into fuel tank,
It avoids fuel oil and causes danger from fuel tank to one-way control valve reflux；And the utility model has the advantages of simple structure, greatly reduces life
Produce cost.
The above is preferred embodiments of the present invention, it is noted that for the ordinary skill of the art
For personnel, under the premise of not departing from principle described in the utility model, it can also make several improvements and retouch, these improvement
It also should be regarded as the protection scope of the utility model with retouching.
Claims (6)
1. a kind of oil tank liquid level control valve of integrated check valve, which is characterized in that including upper valve body and lower valve body；
The upper valve body is connected with the lower valve body limits a cavity, and the first venthole, institute are equipped at the top of the upper valve body
The side for stating upper valve body is equipped with liquid level window, and the liquid level window is connected to fuel tank；
The inside cavity is equipped with the first float, the second float and spring, and first float is equipped with the first valve block and second
Venthole；First valve block can be bonded with the upper valve body, second float be set to below first float and with
The first float connection, and the two can relatively move；
Second float upper end is equipped with the second valve block, and the upper end of the spring, the spring are connected below second float
Lower end be equipped with spring base, the spring base be set to the lower valve body bottom；
The bottom of the lower valve body sets oil return opening and umbrella valve block, and the umbrella valve block includes umbrella stem and round valve block, the umbrella stem
Upper end passes through and the oil return opening and connect with the lower valve body, the lower end stretching cavity of the umbrella valve block and with the circle
Valve block connection；The circle valve block is located at the lower end of the oil return opening, and the circle valve block can open or close the oil return
Mouthful.
2. the oil tank liquid level control valve of integrated check valve according to claim 1, which is characterized in that under the upper valve body
Portion is equipped with flange, the flange and the upper valve body by integral forming.
3. the oil tank liquid level control valve of integrated check valve according to claim 1, which is characterized in that first valve block is
Downwardly convex disc, first valve block can generate sucker power when being bonded with the upper valve body.
4. the oil tank liquid level control valve of integrated check valve according to claim 1, which is characterized in that on first valve block
Equipped with location hole, first float is equipped with positioning column, and the location hole is correspondingly arranged with the positioning column, first valve
Piece is connect by the location hole and the positioning column with first float.
5. the oil tank liquid level control valve of integrated check valve according to claim 1, which is characterized in that on first float
Equipped with sliding slot, the sliding slot is equipped with chute buckle, and second float is connected by the chute buckle and first float
It connects；First float and second float can be relatively moved by the sliding slot.
6. the oil tank liquid level control valve of integrated check valve according to claim 1, which is characterized in that on second valve block
Equipped with briquetting, second valve block is connect by the briquetting with second float.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920103304.9U CN209524117U (en) | 2019-01-22 | 2019-01-22 | A kind of oil tank liquid level control valve of integrated check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920103304.9U CN209524117U (en) | 2019-01-22 | 2019-01-22 | A kind of oil tank liquid level control valve of integrated check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209524117U true CN209524117U (en) | 2019-10-22 |
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ID=68230291
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920103304.9U Active CN209524117U (en) | 2019-01-22 | 2019-01-22 | A kind of oil tank liquid level control valve of integrated check valve |
Country Status (1)
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| CN (1) | CN209524117U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109578642A (en) * | 2019-01-22 | 2019-04-05 | 苏州市振业实业有限公司 | A kind of oil tank liquid level control valve of integrated check valve |
-
2019
- 2019-01-22 CN CN201920103304.9U patent/CN209524117U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109578642A (en) * | 2019-01-22 | 2019-04-05 | 苏州市振业实业有限公司 | A kind of oil tank liquid level control valve of integrated check valve |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 4059 Dongshan Avenue, Linhu Town, Wuzhong District, Suzhou City, Jiangsu Province, 215105 Patentee after: Suzhou Zhenye Chushuo Technology Co.,Ltd. Address before: No. 518, Zixu Road, Xukou Town, Wuzhong District, Suzhou City, Jiangsu Province, 215000 Patentee before: SUZHOU ZHENYE INDUSTRIAL Co.,Ltd. |
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| CP03 | Change of name, title or address |