CN209943604U

CN209943604U - Novel oil tank isolating valve

Info

Publication number: CN209943604U
Application number: CN201920122973.0U
Authority: CN
Inventors: 左强; 朱超
Original assignee: 左强; 朱超
Current assignee: Anhui Power System Co., Ltd
Priority date: 2019-01-24
Filing date: 2019-01-24
Publication date: 2020-01-14
Anticipated expiration: 2029-01-24

Abstract

The utility model relates to a novel oil tank isolation valve, which comprises a valve body, wherein the valve body is provided with a first pipeline, a second pipeline and an accommodating cavity communicated with the first pipeline and the second pipeline, a valve core is matched in the accommodating cavity, the top of the valve core is connected with a solenoid valve, the middle part of the valve core is sleeved with a spring A positioned in the accommodating cavity, an elongated slot, a first hole and a second hole are arranged in the valve core, a core column is matched in the elongated slot, the top of the core column is connected with a spring B, and a ventilation hole channel is arranged in the core; the valve core is connected with a positioning mechanism; and a partition board is arranged in the second pipeline and divides the second pipeline into two equal pipelines. The utility model discloses can realize high-pressure exhaust, negative pressure tonifying qi, refuel complicated operating mode such as exhaust, the exhaust demand under the adaptable different pressure condition has the exhaust more thoroughly, rapider, the higher advantage of efficiency, and the structure of whole isolating valve is inseparable, small, powerful, simple easy operation, saves installation space greatly.

Description

Novel oil tank isolating valve

Technical Field

The utility model relates to a fuel tank technical field, specific novel oil tank isolating valve that says so.

Background

At present, during conventional automobile design, oil vapor in gasoline in an oil tank can enter a carbon tank after volatilization and is adsorbed by activated carbon, so that the environment pollution can be avoided. However, when the automobile is running, negative pressure is formed in the engine to separate oil vapor from the activated carbon and suck the oil vapor into the engine for combustion, so that the oil vapor in the carbon tank is less and less, the oil vapor leaks from the carbon tank and directly flows into an external environment, and serious environmental pollution is caused; and the engine is out of work for a long time, can't form the negative pressure in the engine, make oil vapor can't break away from the active carbon and get into the engine by the influence of negative pressure, the oil vapor after the petrol volatilizees will constantly get into the charcoal canister for direct the spilling over to the external world again after the active carbon absorption saturation in the charcoal canister, cause environmental pollution. Therefore, a valve device which can meet complex working conditions of high-pressure exhaust, negative-pressure air supplement, oil filling and exhaust and the like and release gas in an oil tank to the external connection through a carbon tank is urgently needed.

Disclosure of Invention

In order to avoid and solve the technical problem, the utility model provides a novel oil tank isolating valve.

The utility model discloses the technical problem that will solve adopts following technical scheme to realize:

a novel oil tank isolation valve comprises a valve body, wherein the valve body is provided with a first pipeline, a second pipeline and a containing cavity communicated with the first pipeline and the second pipeline, a valve core is matched in the containing cavity, the top of the valve core is connected with an electromagnetic valve, the middle of the valve core is sleeved with a spring A positioned in the containing cavity, an elongated slot communicated with the bottom of the valve core, a first hole and a second hole communicated with the elongated slot are formed in the valve core, a slidable core column is matched in the elongated slot, the top of the core column is connected with a spring B fixed in the elongated slot, and a ventilation hole channel is formed in the core column;

the valve core can vertically move through the pressure in the first pipeline, and is connected with a positioning mechanism for limiting the position after movement;

and a partition board is arranged in the second pipeline and divides the second pipeline into two equal pipelines.

Further, positioning mechanism includes dentate plate, riser, both ends respectively with the spring C that dentate plate and riser link to each other, set up in the tooth form groove of stem, both ends lean on respectively in the locating lever in dentate plate and tooth form groove, the electric putter who links to each other with the riser.

Furthermore, both ends of the positioning rod are conical heads and are horizontally and slidably mounted on the valve core.

Furthermore, the electric push rod and the electromagnetic valve are connected with an electric control chip together.

Furthermore, the electric control chip is located at the upper end of the valve body and is connected with a protective cover.

Furthermore, the bottom of the core column is provided with a boss abutted against the bottom of the valve core, and the boss is hinged with two baffle plates which are symmetrically arranged.

Furthermore, the first hole and the second hole are respectively communicated with the two pipelines.

Furthermore, a sealing ring is sleeved at the upper end of the valve core.

The utility model has the advantages that: the utility model discloses can realize high pressure exhaust, negative pressure tonifying qi, refuel complicated operating mode such as exhaust, through setting up a plurality of air vents, can adapt to the exhaust demand under the different pressure conditions, have the exhaust more thoroughly, more rapid, the higher advantage of efficiency, reduce hydrocarbon's emission by a wide margin, be favorable to the environmental protection, improve and refuel smooth and easy; the whole isolation valve has the advantages of compact structure, small volume, powerful function, simplicity and easiness in operation, and greatly saves the installation space.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a schematic perspective view of the present invention;

fig. 2 is a sectional view of the internal structure of the present invention;

fig. 3 is a partial enlarged view of fig. 2 at I.

Detailed Description

In order to make the utility model realize, the technical means, the creation characteristics, the achievement purpose and the efficacy are easy to understand and understand, and the utility model is further explained below.

As shown in fig. 1 to 3, a novel oil tank isolation valve includes a valve body 1, the valve body has a first pipeline 2, a second pipeline 3, and a cavity 4 communicated with the first pipeline 2 and the second pipeline 3, a valve core 5 is fitted in the cavity 4, a solenoid valve 6 is connected to the top of the valve core 5, a spring a7 located in the cavity 4 is sleeved in the middle of the valve core 5, a long groove 5a communicated with the bottom of the valve core 5, a first hole 5B and a second hole 5c communicated with the long groove 5a are provided in the valve core 5, a slidable stem 8 is fitted in the long groove 5a, the top of the stem 8 is connected with a spring B16 fixed to the long groove 5a, and a vent hole 8a is provided in the stem 8;

the valve core 5 can vertically move through the pressure in the first pipeline 2, and the valve core 5 is connected with a positioning mechanism 9 for limiting the position after movement;

a partition plate 10 is arranged in the second pipeline 3, and the second pipeline 3 is divided into two equal pipelines 3a by the partition plate 10.

Positioning mechanism 9 includes dentate plate 91, riser 92, spring C96 that both ends link to each other with dentate plate 91 and riser 92 respectively, sets up in the tooth form groove 93 of stem 8, both ends lean on respectively in the locating lever 94 of dentate plate 91 and tooth form groove 93, the electric putter 95 that links to each other with riser 92.

The two ends of the positioning rod 94 are both in a conical head shape and are horizontally and slidably mounted on the valve core 5.

The electric push rod 95 and the electromagnetic valve 6 are connected with an electric control chip 11 together. The electric control chip 11 is a PLC controller.

The electric control chip 11 is located at the upper end of the valve body 1 and is connected with a protective cover 12.

The bottom of the core column 8 is provided with a boss 15 which is abutted against the bottom of the valve core 5, and the boss 15 is hinged with two baffle plates 13 which are symmetrically arranged. The baffle 13 prevents air from being trapped in the elongated slot 5a and causing residue.

The first hole 5b and the second hole 5c are respectively communicated with the two pipelines 3 a.

And a sealing ring 14 is sleeved at the upper end part of the valve core 5.

When the device is used, the first pipeline 2 is connected with an oil tank, and the second pipeline 3 is connected with a carbon tank.

In a natural state, the electric control chip 11 is not electrified, the valve is in a closed state, the valve core 5 is located at the lowest end of the isolation valve, and the oil tank and the carbon tank are in an isolated state.

Under the high pressure state, the valve core 5 is subjected to the high pressure of 35kPa in the first pipeline 2, so that the valve core 5 moves upwards under the high pressure, the compression spring A7 is pushed to different positions according to the magnitude of the internal pressure, the two pipelines 3a can be opened one by one or simultaneously, and the pressure in the oil tank is released to the outside through the carbon tank. In order to improve the pressure release efficiency, in the process of upward movement of the valve core 5, the right end of the positioning rod 94 abuts against different positions on the toothed plate 91 to fix the valve core 5, so that the valve core 5 cannot move downwards due to pressure reduction, and the two pipelines 3a are always opened. After pressure release finishes, only need to switch on automatically controlled chip 11, electric putter 95 drives riser 92 and moves to the right, and then dentate plate 91 and locating lever 94 break away from to support and lean on, and case 5 resumes the normal position.

Under the low pressure state, the valve core 5 is subjected to the low pressure of-15 kPa in the first pipeline 2, firstly the baffle 13 is turned to be opened, then the core column 8 moves downwards due to the low pressure, the spring B16 is stretched, so that the vent hole 8a, the first hole 5B and the second hole 5c can be opened one by one or simultaneously, and the pressure in the oil tank is released to the outside through the carbon tank. For improving pressure release efficiency, the left end of locating lever 94 supports with fixed stem 8 positions with the different positions of flute profile groove 93, guarantees that first hole 5b and second hole 5c are opened all the time, and pressure release finishes the back, only needs to lead to automatically controlled chip 11 circular telegram, and electric putter 95 drives riser 92 and moves to the right, then flute profile groove 93 breaks away from with locating lever 94 and supports and support, and stem 8 resumes the normal position.

In the refueling state, the electric control chip 11 is electrified, the electromagnetic valve 6 is started, the valve core 5 integrally moves upwards, only the second hole 5c is opened if the displacement is not large, the risk of exhausting is blocked, the oil tank and the carbon canister are in an open state, and the pressure in the oil tank can be released to the outside through the carbon canister; when the air displacement is large, the first hole 5b and the second hole 5c are opened at the same time, the whole exhaust channel is completely opened, and the pressure relief and the exhaust of the oil tank are accelerated.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the above embodiments and what is described in the specification are the principles of the present invention, and that there can be various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a novel oil tank isolating valve, includes valve body (1), the valve body have first pipeline (2), second pipeline (3), with first pipeline (2) and the communicating appearance chamber (4) of second pipeline (3), its characterized in that: a valve core (5) is matched in the accommodating cavity (4), the top of the valve core (5) is connected with an electromagnetic valve (6), the middle of the valve core is sleeved with a spring A (7) positioned in the accommodating cavity (4), a long groove (5a) communicated with the bottom of the valve core (5), a first hole (5B) and a second hole (5c) communicated with the long groove (5a) are formed in the valve core (5), a slidable core column (8) is matched in the long groove (5a), the top of the core column (8) is connected with a spring B (16) fixed on the long groove (5a), and a ventilation hole channel (8a) is formed in the core column (8);

the valve core (5) can vertically move through the pressure in the first pipeline (2), and the valve core (5) is connected with a positioning mechanism (9) for limiting the position after movement;

be equipped with baffle (10) in second pipeline (3), baffle (10) are separated into two impartial pipelines (3a) with second pipeline (3).

2. A novel tank isolation valve as claimed in claim 1, wherein: positioning mechanism (9) include dentate plate (91), riser (92), both ends respectively with dentate plate (91) and riser (92) continuous spring C (96), set up in dentate groove (93) of stem (8), both ends lean on respectively in positioning lever (94) of dentate plate (91) and dentate groove (93), electric putter (95) that link to each other with riser (92).

3. A novel tank isolation valve as claimed in claim 2, wherein: and two ends of the positioning rod (94) are both in a conical head shape and are horizontally and slidably arranged on the valve core (5).

4. A novel tank isolation valve as claimed in claim 2, wherein: the electric push rod (95) and the electromagnetic valve (6) are connected with an electric control chip (11) together.

5. A novel fuel tank isolation valve as claimed in claim 4 wherein: the electric control chip (11) is located at the upper end of the valve body (1) and is connected with a protective cover (12).

6. A novel tank isolation valve as claimed in claim 1, wherein: the bottom of the core column (8) is provided with a boss (15) which is abutted against the bottom of the valve core (5), and the boss (15) is hinged with two baffle plates (13) which are symmetrically arranged.

7. A novel tank isolation valve as claimed in claim 1, wherein: the first hole (5b) and the second hole (5c) are respectively communicated with the two pipelines (3 a).

8. A novel tank isolation valve as claimed in claim 1, wherein: and a sealing ring (14) is sleeved at the upper end part of the valve core (5).