TWM497665U - Gas discharge structure of dual purpose gas fuel tank - Google Patents

Description

Dual-purpose gas fuel tank outlet structure

The present invention relates to a dual-purpose gas fuel tank, and more particularly to an outlet structure of a dual-purpose gas fuel tank.

The dual-purpose gas fuel tank can provide three different states of gas outlet mode, namely, a closed gas mode, a quantitative gas outlet mode, and a continuous gas outlet mode, wherein the quantitative gas outlet mode provides a certain amount when the corresponding structure is depressed to a certain depth. The gas is used for specific purposes; while in continuous gas mode, the gas is continuously supplied for use or for filling gas. Quantitative gas output mode is mainly to let the user not control the output dose of gas by himself, which not only saves the use of gas, but also increases the safety of use.

An outgassing structure of a conventional dual-purpose gas fuel tank, such as U.S. Patent No. 7,392,922, the structure comprising a casing, a main valve stem and a fuel metering valve, wherein the casing has a certain amount enclosed by a baffle The main valve stem has a convex pipe diameter and an upper pipe diameter and a lower pipe diameter on both sides of the convex pipe diameter, and the fuel metering valve has a first gear corresponding to the pressing pipe diameter Stop the edge. The main valve stem has an air outlet and passes through the baffle to enter the quantitative accommodating space, and the main valve stem reciprocates relative to the housing, so that the main valve stem has the air outlet not passing through the baffle a closed position, a first open position and a second open position through the baffle.

When the main valve stem is in the closed position, the position of the stop flange is corresponding to the lower diameter, which maintains a slit, so that the gas in the gas fuel tank can enter the quantitative accommodation space, but the air outlet does not pass through. The baffle, therefore, the gas cannot be vented from the air outlet, which is in the closed air mode. When the main valve stem is in the first open position, the retaining edge is pressed against the convex pipe diameter, so that the gas in the gas fuel tank cannot enter the quantitative accommodating space, but the quantitative accommodating space exists. Gas can be vented through the gas outlet, which is a quantitative gas outlet mode. When the main valve stem is in the second open position, the position of the stop flange is corresponding to the upper diameter, which forms a larger gap, so that the gas in the gas fuel tank can enter the quantitative accommodation space, and then The gas is discharged from the gas outlet, which is a continuous gas (filling) mode.

The structure as described above can provide three different states of the air outlet mode, which satisfies the requirements of use, but mainly achieves three differentities by tightly pressing the airtight structure formed by the flange of the flange. The outlet mode of the state, however, the stop margin of the fuel metering valve must be closely matched with the diameter of the boss, and the precision is not only required in the production, but also the problem of air leakage due to wear after long-term use, not only The life is affected, and the airtight stability is poor, causing troubles in use.

The main purpose of the novel is to solve the problems of high precision, short service life and poor airtight stability of components of the prior art.

Based on the above purposes, the present invention proposes the following technical solutions:

The utility model relates to a dual-purpose gas fuel tank outlet structure, which is arranged on a gas fuel tank and is respectively connected with a fuel tank inner bag and an air outlet. The dual-purpose gas fuel tank outlet structure comprises a connection to the fuel tank. a nozzle holder of the bag, a certain amount of tubes and a gas guide rod, wherein the nozzle holder has a gas circulation space, and a gas stop ring, an outer elastic member and an inner elastic member disposed in the gas circulation space The gas ring is disposed at a position adjacent to the gas flow space adjacent to the gas outlet, the inner elastic member has a smaller radius than the outer elastic member and is disposed coaxially in the gas flow space adjacent to the fuel tank inner bag s position.

The quantitative tube is disposed in the gas circulation space and located between the outer elastic member and the gas stop ring, and the quantitative tube has an abutting portion abutting the outer elastic member to form a first tube and a small diameter a second tube, the quantitative tube forms an open flow path with the gas circulation space, and the outer elastic element normally presses the quantitative tube to press the gas stop ring to form an outer airtight structure to close the open flow channel .

The air guiding rod is disposed in the quantitative tube, the air guiding rod has an air outlet pipe connected to the air outlet, a gas guiding cylinder disposed in the first tube, and a gas guiding cylinder disposed at one end of the gas guiding cylinder away from the gas outlet tube And abutting against the gas barrier cylinder on the inner elastic member and a gas-tight member disposed on the gas barrier cylinder, the outer diameter of the gas barrier cylinder is smaller than the outer diameter of the gas guide cylinder and can penetrate the second a pressing plane for displacing the quantitative tube between the gas barrier cylinder and the gas guiding cylinder, the axial length of the gas guiding cylinder being smaller than the axial length of the first tube, so that the first tube and the first tube A flow passage is formed between the gas guide rods, and the gas outlet pipe has an air outlet opening adjacent to the air outlet nozzle and an air inlet opening adjacent to the air guide cylinder.

The displacement stroke of the air guiding cylinder has a closed air position, a certain amount of air outlet position and a continuous air outlet position, and the inner elastic element normally presses the gas barrier cylinder to allow the air guiding cylinder to be in the closed air position, and when the air guiding cylinder is in the air guiding cylinder In the closed position, the air inlet opening does not pass through the air lock ring and does not communicate with the gas flow space, and closes the metering flow channel and the open flow channel, and the airtight member does not contact the second tube; When the air outlet is pushed to the air cylinder at the quantitative air outlet position, the air inlet opening passes through the air lock ring to communicate with the metering flow passage, and the airtight member is inserted into and contacts the second tube to form An inner airtight structure, the inner airtight structure makes the quantitative flow path and the inner bag of the fuel tank non-conducting; and when the deep air pressure is continued to be pressed, the gas guiding cylinder is in the continuous air outlet position, the pushing The pressing plane pushes the metering tube to move away from the air outlet nozzle, and the metering tube leaves the air stopping ring, and communicates between the open air channel and the air outlet mouth, and the air outlet mouth and the inner bag of the fuel tank Maintain conduction.

Accordingly, by pushing the air outlet, the gas guiding cylinder can be respectively located at the closed air position, the quantitative air outlet position and the continuous air outlet position, thereby providing a closed air mode, a quantitative air outlet mode, and a continuous air outlet (intake) mode. Used by the user, and because of its airtight structure, the outer airtight structure formed by the outer elastic element pressing the quantitative tube to press the air lock ring, and the airtight element being inserted into and contacting the second tube The inner airtight structure, the inner and outer airtight structures are quite mature structures, not only have long life and durability, but also have almost no problem of elastic fatigue, which can meet the needs of use.

100‧‧‧ gas fuel tank

110‧‧‧fuel tank inner bag

200‧‧‧ gas outlet

10‧‧‧ mouthpiece

11‧‧‧ gas circulation space

12‧‧‧ gas ring

13‧‧‧External elastic components

14‧‧‧Inside elastic components

20‧‧‧Quantitative tube

21‧‧‧Affiliation

22‧‧‧ first tube

23‧‧‧ second tube

24‧‧‧ trench

30‧‧‧ gas guide

31‧‧‧Exhaust pipe

32‧‧‧ gas guiding cylinder

33‧‧‧ gas barrier cylinder

34‧‧‧Airtight components

35‧‧‧Pushing plane

36‧‧‧Exhaust opening

37‧‧‧ inlet opening

40‧‧‧Open runner

41‧‧‧Outer airtight structure

50‧‧‧Quantitative flow path

51‧‧‧Inner airtight structure

60‧‧‧ gas

Figure 1, is the structure of the creation.

Fig. 2 is a schematic structural view of the airflow in the case of the closed air mode.

Fig. 3 is a schematic structural view of the airflow when the quantitative exhaust mode is created.

Fig. 4 is a schematic structural view of the airflow when the continuous air-exhausting mode is created.

Please refer to FIG. 1 , which is a dual-purpose gas fuel tank outlet structure, which is disposed on a gas fuel tank 100 and connected to a fuel tank inner bag 110 and an air outlet 200 respectively. The gas fuel tank outlet structure comprises a nozzle seat 10 connecting the inner tank 110 of the fuel tank, a certain amount of tubes 20 and a gas guide rod 30.

The nozzle base 10 has a gas circulation space 11 , a gas stop ring 12 disposed in the gas flow space 11 , an outer elastic member 13 , and an inner elastic member 14 . The gas stop ring 12 is disposed on the gas. The flow space 11 is adjacent to the position of the air outlet 200. The inner elastic member 14 has a smaller radius than the outer elastic member 13 and is disposed coaxially with the gas circulation space 11 adjacent to the inner tank 110. And the outer elastic element 13 and the inner elastic element 14 can be springs.

The quantitative tube 20 is disposed in the gas circulation space 11 and located between the outer elastic member 13 and the gas stop ring 12, and the quantitative tube 20 has an abutting portion 21 abutting the outer elastic member 13 to form a first a tube 22 and a second tube 23 having a smaller tube diameter, an open flow channel 40 is formed between the meter tube 20 and the gas circulation space 11, and the outer annular surface of the meter tube 20 can be disposed to form the open channel The plurality of grooves 24 of the 40, the outer elastic member 13 normally presses the metering tube 20 to press the gas block 12 to form an outer airtight structure 41 to close the open flow path 40.

The air guiding rod 30 is disposed in the quantitative tube 20, and the air guiding rod 30 has an air outlet tube 31 connected to the air outlet nozzle 200, a gas guiding cylinder 32 disposed in the first tube 22, and a guide tube 32. The gas cylinder 32 is away from the end of the gas outlet pipe 31 and abuts against the gas-barrier cylinder 33 on the inner elastic member 14, and a gas-tight member 34 disposed on the gas-barrier cylinder 33. The gas-tight member 34 can be O-shaped. The ring is either a film baffle, the outer diameter of the gas block 33 is smaller than the outer diameter of the gas guide cylinder 32 and can penetrate into the second pipe 23, and the gas block 33 and the gas guide cylinder A pressing plane 35 for displacing the quantitative tube 20 is formed between 32, and the axial length of the air guiding cylinder 32 is smaller than the axial length of the first tube 22 to allow the first tube 22 and the gas guiding rod 30 to be between Forming a certain amount of flow passages 50, the quantitative flow passages 50 are configured to be filled with a fixed amount of gas, and the outlet ducts 31 have an air outlet opening 36 adjacent to the air outlet nozzles 200 and an air inlet adjacent to the air guide cylinders 32. Opening 37.

Please refer to "Fig. 2", "Fig. 3" and "Fig. 4" together. The displacement stroke of the air guide cylinder 32 has a closed position (as shown in Fig. 2) and a certain amount of air outlet position (Fig. 3). And the continuous air outlet position (as shown in FIG. 4), the inner elastic member 14 normally presses the gas barrier cylinder 33 to position the gas guide cylinder 32 in the closed position, and when the gas guide cylinder 32 is In the closed position, the air inlet opening 37 does not pass through the air lock ring 12 and does not communicate with the gas circulation space 11, and closes the quantitative flow channel 50 and the open flow channel 40, and the airtight member 34 does not contact the first air passage member 34. Two tubes 23. Accordingly, the gas 60 in the gaseous fuel tank 100 can only enter the quantitative flow path 50 between the first tube 22 and the gas guide 30, which is the closed gas mode.

As shown in FIG. 3, when the air outlet 200 is pushed to position the air guide cylinder 32 in the quantitative air outlet position, the air inlet opening 37 passes through the air stop ring 12 to communicate with the metering flow passage 50, and the The airtight member 34 is inserted into and contacts the second tube 23 to form an inner airtight structure 51. The inner airtight structure 51 prevents the quantitative flow path 50 from being electrically connected to the gas fuel tank 100. The gas 60 in the passage 50 can be discharged from the inlet opening 37 to enter the outlet nozzle 200 through the outlet opening 36 via the outlet pipe 31, which forms a quantitative outlet mode.

As shown in FIG. 4, when the air outlet 200 is further deep pressed, and the air guiding cylinder 32 is located at the continuous air outlet position, the pressing plane 35 pushes the metering tube 20 away from the air outlet 200. The direction moves to allow the metering tube 20 to leave the gas block 12, and communicates the open channel 40 with the gas outlet 200 to maintain conduction between the gas outlet 200 and the fuel tank inner bag 110. That is, the gas 60 in the gas fuel tank 100 can enter the gas outlet 200 through the open flow passage 40, and the gas 60 can be continuously supplied and used for gas filling, which is a continuous gas (filling) mode.

As mentioned above, the advantages of this creation are at least as follows:

1. Through the use of the hermetic component, it is not necessary to make a very precise assembly component to achieve an airtight effect, and the product production yield is high.

2. The gas flow is separately performed by using the difference between the open flow path and the quantitative flow path position, and has high stability and is not easy to have a problem of reducing the service life due to abrasion.

3. The inner airtight structure formed by the outer elastic member pressing the outer tube to press the outer airtight structure formed by the air lock ring while the airtight member is inserted into and contacts the second tube, The inner and outer airtight structures are quite mature structures, which not only have long life and durability, but also have almost no problem of elastic fatigue.

3. The inner elastic member and the outer elastic member can adopt a spring, which is low in cost and long in service life.

The present invention has been described in detail above, but the above is only one preferred embodiment of the present invention, and the scope of the present invention is not limited. All changes and modifications made in accordance with the scope of this new application shall remain within the scope of this new patent.

100‧‧‧ gas fuel tank

110‧‧‧fuel tank inner bag

200‧‧‧ gas outlet

10‧‧‧ mouthpiece

11‧‧‧ gas circulation space

12‧‧‧ gas ring

13‧‧‧External elastic components

14‧‧‧Inside elastic components

20‧‧‧Quantitative tube

21‧‧‧Affiliation

22‧‧‧ first tube

23‧‧‧ second tube

24‧‧‧ trench

30‧‧‧ gas guide

31‧‧‧Exhaust pipe

32‧‧‧ gas guiding cylinder

33‧‧‧ gas barrier cylinder

34‧‧‧Airtight components

35‧‧‧Pushing plane

36‧‧‧Exhaust opening

37‧‧‧ inlet opening

40‧‧‧Open runner

41‧‧‧Outer airtight structure

50‧‧‧Quantitative flow path

Claims (6)

[Item 1]
The utility model relates to a dual-purpose gas fuel tank outlet structure, which is arranged on a gas fuel tank and is respectively connected with a fuel tank inner bag and an air outlet. The dual-purpose gas fuel tank outlet structure comprises:
a gas nozzle seat connecting the inner bag of the fuel tank, having a gas circulation space, and a gas stop ring disposed in the gas flow space, an outer elastic member and an inner elastic member, wherein the gas stop ring is disposed at the gas ring The gas circulation space is adjacent to the position of the air outlet, the inner elastic element has a smaller radius than the outer elastic element and is disposed coaxially with the gas circulation space adjacent to the inner bag of the fuel tank;
a quantitative tube disposed in the gas circulation space between the outer elastic member and the gas stop ring, the quantitative tube having an abutting portion abutting the outer elastic member to form a first tube and a diameter of the tube a second tube, the quantitative tube forms an open flow path with the gas circulation space, and the outer elastic member normally presses the quantitative tube to press the gas stop ring to form an outer airtight structure to close the open flow Road
An air guiding rod disposed in the quantitative tube, the air guiding rod has an air outlet pipe connected to the air outlet nozzle, a gas guiding cylinder disposed in the first tube, and a gas guiding cylinder disposed away from the air outlet tube a gas-tight member at one end and abutting against the gas-retaining cylinder on the inner elastic member and a gas-tight member disposed on the gas-blocking cylinder, the outer diameter of the gas-blocking cylinder being smaller than the outer diameter of the gas-conducting cylinder and penetrating the second a pressing plane for displacing the quantitative tube between the gas barrier cylinder and the gas guiding cylinder, the axial length of the gas guiding cylinder being smaller than the axial length of the first tube, so that the first tube and the first tube Forming a certain amount of flow passages between the gas guide rods, and the gas outlet tube has an outlet opening adjacent to the gas outlet nozzle and an inlet opening adjacent to the gas guide cylinder;
The displacement stroke of the air guiding cylinder has a closed air position, a certain amount of air outlet position and a continuous air outlet position, and the inner elastic element normally presses the gas barrier cylinder to allow the air guiding cylinder to be in the closed air position, and when the air guiding cylinder is in the air guiding cylinder In the closed position, the air inlet opening does not pass through the air lock ring and does not communicate with the gas flow space, and closes the metering flow channel and the open flow channel, and the airtight member does not contact the second tube; When the air outlet is pushed to the air cylinder at the quantitative air outlet position, the air inlet opening passes through the air lock ring to communicate with the metering flow passage, and the airtight member is inserted into and contacts the second tube to form An inner airtight structure, the inner airtight structure makes the quantitative flow path and the inner bag of the fuel tank non-conducting; and when the deep air pressure is continued to be pressed, the gas guiding cylinder is in the continuous air outlet position, the pushing The pressing plane pushes the metering tube to move away from the air outlet nozzle, and the metering tube leaves the air stopping ring, and communicates between the open air channel and the air outlet mouth, and the air outlet mouth and the inner bag of the fuel tank Maintain conduction. [Item 2]
The dual-purpose gas fuel tank outlet structure according to claim 1, wherein the outer elastic member is a spring.
[Item 3]
The dual-purpose gas fuel tank outlet structure according to claim 1, wherein the outer tube of the quantitative tube is provided with a plurality of grooves forming the open flow path. [Item 4]
The dual-purpose gas fuel tank outlet structure according to claim 1, wherein the airtight member is an O-ring. [Item 5]
The dual-purpose gas fuel tank outlet structure according to claim 1, wherein the airtight member is a thin film gas barrier. [Item 6]
The dual-purpose gas fuel tank outlet structure according to claim 1, wherein the inner elastic member is a spring.