CN218377871U

CN218377871U - Two-way-hole single-breather valve

Info

Publication number: CN218377871U
Application number: CN202222336252.4U
Authority: CN
Inventors: 林立; 陈利义
Original assignee: Bohai Valve Group Co ltd
Current assignee: Bohai Valve Group Co ltd
Priority date: 2022-09-02
Filing date: 2022-09-02
Publication date: 2023-01-24
Anticipated expiration: 2032-09-02

Abstract

The utility model belongs to the technical field of the breather valve, specifically a bi-pass hole list breather valve, which comprises a valve body, logical groove has been seted up to the bottom of valve body, first opening and second opening have been seted up respectively to the left and right sides at logical inslot wall top, first through-hole and second through-hole have been seted up respectively to the left and right sides at valve body top, the inner chamber of first through-hole is provided with first case, be greater than the internal gas pressure of basin when external atmospheric pressure, and the atmospheric pressure difference is greater than the atmospheric pressure difference of first gas storehouse and second gas storehouse, can push the second piston downwards logical inslot, external air can be by first through-hole and first opening entering in the storage tank, be less than the internal gas pressure of basin when external atmospheric pressure, and when atmospheric pressure difference is greater than the atmospheric pressure difference of third gas storehouse and fourth gas storehouse, can upwards push the second valve piece in the second through-hole, intercommunication mouth and second opening get into in the storage tank, so can keep the internal and external atmospheric pressure balance of basin, than general spring control, this pneumatic control sensitivity is higher, and long-term use back is not fragile.

Description

Two-way-hole single-breather valve

Technical Field

The utility model belongs to the technical field of the breather valve, specifically be a bi-pass hole single breather valve.

Background

The breather valve is a valve which can ensure that the space of the storage tank is isolated from the atmosphere within a certain pressure range and can be communicated with the atmosphere (breathe) when the pressure exceeds or is lower than the pressure range, and the breather valve has the functions of preventing the storage tank from being damaged due to overpressure or vacuum and reducing the evaporation loss of stored liquid.

The existing breather valve generally controls the valve core to return through a spring, but the spring is easy to damage after long-term use, the sensitivity can be greatly reduced, and meanwhile, the air pressure difference inside and outside the storage tank cannot be adjusted, so that great inconvenience is brought to the storage of chemical substances. The utility model provides a bi-pass hole single breather valve can solve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a bi-pass hole list breather valve has and is not fragile after long-term the use, and sensitivity can not reduce and can carry out the advantage adjusted to the internal and external atmospheric pressure difference of basin to solve the above-mentioned present breather valve problem that appears that proposes.

The utility model discloses the technical scheme who takes specifically as follows:

the utility model provides a bi-pass hole single breather valve, includes the valve body, logical groove has been seted up to the bottom of valve body, first opening and second opening have been seted up respectively to the left and right sides at logical inslot wall top, first through-hole and second through-hole have been seted up respectively to the left and right sides at valve body top, the inner chamber of first through-hole is provided with first case, the inner chamber of second through-hole is provided with the second case, first gas tank and second gas tank have been seted up respectively to the left and right sides of valve body.

Preferably, the first valve core comprises a first valve rod, a first valve block is sleeved on an outer ring of the first valve rod, a first control groove and a second control groove are respectively formed in the top and the bottom of the first valve rod, a first piston is arranged in an inner cavity of the first control groove, and a second piston is arranged in an inner cavity of the second control groove.

Preferably, the second valve core comprises a second valve rod, a second valve block is sleeved on the outer ring of the second valve rod, a third control groove and a fourth control groove are formed in the top and the bottom of the second valve rod respectively, a third piston is arranged in the inner cavity of the third control groove, and a fourth piston is arranged in the inner cavity of the fourth control groove.

Preferably, the top and the bottom of first gas tank inner chamber are provided with first gas storehouse and second gas storehouse respectively, be connected with first breather pipe between the inner chamber of first gas storehouse and first control tank, the gas outlet of first breather pipe runs through first piston, be connected with the second breather pipe between the inner chamber of second gas storehouse and second control tank, the gas outlet of second breather pipe runs through the second piston.

Preferably, the first port is communicated with the first through hole, the inner diameter of the first port is larger than that of the first through hole, and the first valve block is inserted into the inner cavity of the first port.

Preferably, the top and the bottom of second air tank inner chamber are provided with third air chamber and fourth air chamber respectively, be connected with third air pipe between the inner chamber of third air chamber and third control tank, third piston is run through to third air pipe's gas outlet, be connected with fourth air pipe between the inner chamber of fourth air chamber and fourth control tank, fourth piston is run through to fourth air pipe's gas outlet.

Preferably, a communication opening is formed in the bottom of the inner wall of the second through hole, the communication opening is communicated with the second through hole, the second valve block is inserted into an inner cavity of the communication opening, the inner diameter of the communication opening is larger than that of the second through hole, and the inner diameter of the communication opening is smaller than that of the second through hole.

The utility model discloses the technological effect who gains does:

1. the utility model discloses a bi-pass hole list breather valve, be greater than the stock tank internal gas pressure when external atmospheric pressure, and when atmospheric pressure difference is greater than the atmospheric pressure difference in first gas storehouse and second gas storehouse, can push the second piston downwards and lead to the inslot, external air can be by in first through-hole and the first opening entering storage tank, be less than stock tank internal gas pressure when external atmospheric pressure, and when atmospheric pressure difference is greater than the atmospheric pressure difference in third gas storehouse and fourth gas storehouse, can upwards push the second valve piece in the second through-hole, external air can be by the second through-hole, intercommunication mouth and second through-hole get into in the storage tank, so can keep the interior external storage tank internal and external atmospheric pressure balanced, compare general spring control, this pneumatic control sensitivity is higher, and not fragile after long-term use.

2. The utility model discloses a bi-pass hole list breather valve, when using, the accessible lets in different volume nitrogen gas to in first gas storehouse, second gas storehouse, third gas storehouse and the fourth gas storehouse to adjust the pressure differential between first gas storehouse and second gas storehouse and third gas storehouse and the fourth gas storehouse, so can be according to different chemical's the storage requirement, the inside and outside atmospheric pressure difference of accurate adjustment basin, the storage of giving chemical brings very big facility.

Drawings

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

fig. 2 is a schematic plan view of the present invention;

fig. 3 is an enlarged view of fig. 2 according to the present invention;

fig. 4 is an enlarged view of fig. 2B according to the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a valve body; 11. a through groove; 111. a first port; 112. a second port; 12. a first through hole; 13. a second through hole; 131. a communication port; 2. a first valve spool; 21. a first valve stem; 211. a first control slot; 212. a second control slot; 22. a first valve block; 23. a first piston; 24. a second piston; 3. a second valve core; 31. a second valve stem; 311. a third control tank; 312. a fourth control slot; 32. a second valve block; 33. a third piston; 34. a fourth piston; 4. a first gas tank; 41. a first gas bin; 42. a second gas bin; 5. a second gas tank; 51. a third gas bin; 52. a fourth gas bin; 6. a first vent pipe; 7. a second vent pipe; 8. a third vent pipe; 9. and a fourth air vent pipe.

Detailed Description

In order to make the objects and advantages of the present invention more apparent, the present invention will be described in detail with reference to the following embodiments. It is to be understood that the following text is only intended to describe one or several particular embodiments of the invention, and does not strictly limit the scope of the claims specifically claimed.

As shown in fig. 1-4, a two-way hole single breather valve comprises a valve body 1, a through groove 11 is formed in the bottom of the valve body 1, threads are arranged on the inner ring of the through groove 11 and the outer ring of a tank opening of a storage tank, when the breather valve is used, the tank opening of the storage tank can be clamped into the through groove 11 and screwed down, so that the breather valve can be installed on the storage tank, a first through hole 111 and a second through hole 112 are respectively formed in the left side and the right side of the top of the inner wall of the through groove 11, a first through hole 12 and a second through hole 13 are respectively formed in the left side and the right side of the top of the valve body 1, a first valve core 2 is arranged in an inner cavity of the first through hole 12, a second valve core 3 is arranged in an inner cavity of the second through hole 13, and a first air groove 4 and a second air groove 5 are respectively formed in the left side and the right side of the valve body 1.

Specifically, the first valve core 2 includes a first valve rod 21, a first valve block 22 is sleeved on an outer ring of the first valve rod 21, a first control groove 211 and a second control groove 212 are respectively formed in the top and the bottom of the first valve rod 21, a first piston 23 is arranged in an inner cavity of the first control groove 211, and a second piston 24 is arranged in an inner cavity of the second control groove 212.

Specifically, the top and the bottom of the inner cavity of the first air tank 4 are respectively provided with a first air chamber 41 and a second air chamber 42, the first air chamber 41 and the second air chamber 42 are filled with nitrogen, the air pressure of the second air chamber 42 is greater than the air pressure of the first air chamber 41, a first vent pipe 6 is connected between the inner cavities of the first air chamber 41 and the first control groove 211, an air outlet of the first vent pipe 6 penetrates through the first piston 23, a second vent pipe 7 is connected between the inner cavities of the second air chamber 42 and the second control groove 212, an air outlet of the second vent pipe 7 penetrates through the second piston 24, nitrogen in the first air chamber 41 can enter the first control groove 211 through the first vent pipe 6, and nitrogen in the second air chamber 42 can enter the second control groove 212 through the second vent pipe 7.

Furthermore, the first through hole 111 is communicated with the first through hole 12, the inner diameter of the first through hole 111 is larger than the inner diameter of the first through hole 12, the first valve block 22 is inserted into the inner cavity of the first through hole 111, in an initial state, the air pressure difference between the first air chamber 41 and the second air chamber 42 is larger than the air pressure difference between the inside and the outside of the storage tank, the first valve block 22 can be jacked upwards, and the first valve block 22 is pushed into the first through hole 111, so that the tank opening is sealed.

Specifically, the second valve core 3 includes a second valve rod 31, a second valve block 32 is sleeved on an outer ring of the second valve rod 31, a third control groove 311 and a fourth control groove 312 are respectively formed in the top and the bottom of the second valve rod 31, a third piston 33 is arranged in an inner cavity of the third control groove 311, and a fourth piston 34 is arranged in an inner cavity of the fourth control groove 312.

Specifically, the top and the bottom of the inner cavity of the second air tank 5 are respectively provided with a third air chamber 51 and a fourth air chamber 52, nitrogen is filled in the third air chamber 51 and the fourth air chamber 52, the air pressure of the third air chamber 51 is greater than that of the fourth air chamber 52, a third vent pipe 8 is connected between the inner cavities of the third air chamber 51 and the third control tank 311, the air outlet of the third vent pipe 8 penetrates through the third piston 33, a fourth vent pipe 9 is connected between the inner cavities of the fourth air chamber 52 and the fourth control tank 312, the air outlet of the fourth vent pipe 9 penetrates through the fourth piston 34, nitrogen in the third air chamber 51 can enter the third control tank 311 through the third vent pipe 8, and nitrogen in the fourth air chamber 52 can enter the fourth control tank 312 through the fourth vent pipe 9.

Further, the bottom of the inner wall of the second through hole 13 is provided with a communication port 131, the communication port 131 is communicated with the second through hole 112, the second valve block 32 is inserted into an inner cavity of the communication port 131, the inner diameter of the communication port 131 is larger than that of the second through hole 112, the inner diameter of the communication port 131 is smaller than that of the second through hole 13, in an initial state, the air pressure difference between the third air bin 51 and the fourth air bin 52 is larger than the air pressure difference between the inside and the outside of the storage tank, the lower portion of the second valve block 32 can be pushed downwards, and the second valve block 32 is pushed into the communication port 131, so that the tank opening is sealed.

The utility model discloses a theory of operation: when in use, the tank opening of the storage tank can be clamped into the through groove 11 and screwed down to mount the breather valve on the storage tank, when in an initial state, the air pressure of the second air chamber 42 is greater than the air pressure of the first air chamber 41, the air pressure difference between the first air chamber and the second air chamber is greater than the air pressure difference between the inside and the outside of the storage tank, the first valve block 22 can be jacked upwards, the first valve block 22 is pushed into the first through hole 111 to seal the tank opening, meanwhile, the air pressure of the third air chamber 51 is greater than the air pressure of the fourth air chamber 52, the air pressure difference between the third air chamber and the fourth air chamber is greater than the air pressure difference between the inside and the outside of the storage tank, the second valve block 32 can be pushed downwards and pushed into the communication port 131 to seal the tank opening, when the outside air pressure is greater than the inside of the storage tank, and the air pressure difference between the first air chamber 41 and the second air chamber 42 is greater than the air pressure difference between the inside and the outside of the storage tank, the second piston 24 can be pushed downwards into the through groove 11, external air can enter the storage tank through the first through hole 12 and the first through hole 111 to keep the internal and external air pressures of the storage tank balanced, when the external air pressure is smaller than the internal air pressure of the storage tank and the air pressure difference is larger than the air pressure difference between the third air chamber 51 and the fourth air chamber 52, the second valve block 32 can be pushed upwards into the second through hole 13, the external air can enter the storage tank through the second through hole 13, the communication port 131 and the second through hole 112 to keep the internal and external air pressures of the storage tank balanced, and meanwhile, when the air pressure difference adjusting device is used, different amounts of nitrogen can be introduced into the first air chamber, the second air chamber, the third air chamber and the fourth air chamber to adjust the pressure difference between the first air chamber and the second air chamber and between the third air chamber and the fourth air chamber, so the internal and external air pressure difference of the storage tank can be adjusted.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention. The structures, devices, and methods of operation of the present invention, not specifically described and illustrated, are generally practiced by those of ordinary skill in the art without specific recitation or limitation.

Claims

1. A two-through-hole single-breathing valve comprises a valve body (1), and is characterized in that: the improved air valve is characterized in that a through groove (11) is formed in the bottom of the valve body (1), a first through hole (111) and a second through hole (112) are formed in the left side and the right side of the top of the inner wall of the through groove (11) respectively, a first through hole (12) and a second through hole (13) are formed in the left side and the right side of the top of the valve body (1) respectively, a first valve core (2) is arranged in an inner cavity of the first through hole (12), a second valve core (3) is arranged in an inner cavity of the second through hole (13), and a first air groove (4) and a second air groove (5) are formed in the left side and the right side of the valve body (1) respectively.

2. A dual vent single exhalation valve according to claim 1 wherein: the first valve core (2) comprises a first valve rod (21), a first valve block (22) is sleeved on the outer ring of the first valve rod (21), a first control groove (211) and a second control groove (212) are formed in the top and the bottom of the first valve rod (21) respectively, a first piston (23) is arranged in the inner cavity of the first control groove (211), and a second piston (24) is arranged in the inner cavity of the second control groove (212).

3. A dual vent single exhalation valve according to claim 1 wherein: the second valve core (3) comprises a second valve rod (31), a second valve block (32) is sleeved on the outer ring of the second valve rod (31), a third control groove (311) and a fourth control groove (312) are respectively formed in the top and the bottom of the second valve rod (31), a third piston (33) is arranged in the inner cavity of the third control groove (311), and a fourth piston (34) is arranged in the inner cavity of the fourth control groove (312).

4. A dual vent single breather valve according to claim 2, wherein: the top and the bottom of first gas tank (4) inner chamber are provided with first gas storehouse (41) and second gas storehouse (42) respectively, be connected with first breather pipe (6) between the inner chamber of first gas storehouse (41) and first control groove (211), first piston (23) are run through to the gas outlet of first breather pipe (6), be connected with second breather pipe (7) between the inner chamber of second gas storehouse (42) and second control groove (212), second piston (24) are run through to the gas outlet of second breather pipe (7).

5. A dual vent single breather valve according to claim 2, wherein: the first through hole (111) is communicated with the first through hole (12), the inner diameter of the first through hole (111) is larger than that of the first through hole (12), and the first valve block (22) is inserted into the inner cavity of the first through hole (111).

6. A two-port, single-breathing valve as defined in claim 3, wherein: the top and the bottom of second gas tank (5) inner chamber are provided with third gas storehouse (51) and fourth gas storehouse (52) respectively, be connected with third air pipe (8) between the inner chamber of third gas storehouse (51) and third control groove (311), third piston (33) is run through to the gas outlet of third air pipe (8), be connected with fourth air pipe (9) between the inner chamber of fourth gas storehouse (52) and fourth control groove (312), fourth piston (34) is run through to the gas outlet of fourth air pipe (9).

7. A two-port, single-breathing valve as defined in claim 3, wherein: the bottom of the inner wall of the second through hole (13) is provided with a communication port (131), the communication port (131) is communicated with the second through hole (112), the second valve block (32) is inserted into an inner cavity of the communication port (131), the inner diameter of the communication port (131) is larger than that of the second through hole (112), and the inner diameter of the communication port (131) is smaller than that of the second through hole (13).