CN-224229349-U - Breather valve sealing mechanism and breather valve

Abstract

The utility model discloses a breather valve sealing mechanism and a breather valve, which belong to the technical field of breather valves and comprise a valve body, a first through pipe and a second through pipe, wherein the first through pipe and the second through pipe are arranged on the surface of the valve body, an air outlet valve disc matched with an air outlet valve seat for exhausting is arranged in the first through pipe, a detachable mounting cover plate is arranged at the top of the air outlet valve disc, a sealing mechanism matched with the air outlet valve disc is arranged at the top of an inner cavity of the mounting cover plate, a sealing plunger for improving the sealing effect is arranged at the bottom of the air outlet valve disc, a dustproof and exhausting annular filter is arranged at the bottom of the mounting cover plate, and an air suction valve disc matched with an air inlet valve seat for air suction is arranged in the second through pipe.

Inventors

• SUN JIE
• SONG YUPENG
• DUAN LIHUA
• CAI ZHIWEN
• XU TENG
• ZHANG SHUAI
• WANG FENG

Assignees

• 青岛正维科技信息有限公司

Dates

Publication Date

20260512

Application Date

20250626

Claims (7)

1. 1. A breather valve seal mechanism, comprising: The valve comprises a valve body (1), a first through pipe (2) and a second through pipe (3) which are arranged on the surface of the valve body (1), wherein the inner cavities of the first through pipe (2) and the second through pipe (3) are respectively provided with an air outlet valve seat (4) and an air inlet valve seat (15); An air outlet valve disc (8) matched with the air outlet valve seat (4) for exhausting is arranged in the first through pipe (2), a detachably installed installation cover plate (6) is arranged at the top of the air outlet valve disc (8), and a sealing mechanism matched with the air outlet valve disc (8) is arranged at the top of an inner cavity of the installation cover plate (6); The bottom of the air outlet valve disc (8) is provided with a sealing plunger (12) for improving the sealing effect, and the bottom end of the mounting cover plate (6) is provided with a dustproof and exhaust annular filter (14); An air suction valve disc (18) matched with the air suction valve seat (15) for air suction is arranged in the second through pipe (3), and a protection filter disc (20) for air suction protection is arranged below the air suction valve disc (18).
2. 2. The respiratory valve sealing mechanism as recited in claim 1, wherein the sealing mechanism comprises: a mounting sleeve (7) connected to the central position of the mounting cover plate (6), and The first spring (10) is sleeved on the surface of the mounting sleeve (7); the top of valve disc (8) is connected with first valve rod (9), the top sliding connection of first valve rod (9) is in the inner wall of installation sleeve (7), the bottom of first spring (10) is connected in the top of valve disc (8) of giving vent to anger.
3. 3. The breather valve sealing mechanism according to claim 2, wherein a counterweight cavity (11) for auxiliary sealing is arranged at the bottom of the air outlet valve disc (8), a sealing plunger (12) is detachably connected to the inner wall of the counterweight cavity (11), and the bottom end of the sealing plunger (12) is in sealing connection with an air outlet through hole of the air outlet valve seat (4).
4. 4. The breather valve sealing mechanism of claim 1, wherein the bottom end of the mounting cover plate (6) is connected with a connecting frame (13), the annular filter (14) is movably mounted in the connecting frame (13), and an air outlet through groove (5) is formed in the inner wall of the first through pipe (2).
5. 5. The breather valve sealing mechanism according to claim 1, wherein the top of the second through pipe (3) is detachably provided with a fixed cover plate (16) through a mounting hole (21), the top end of the air suction valve disc (18) is connected with a second valve rod (17), and the surface of the second valve rod (17) is slidably inserted into the fixed cover plate (16).
6. 6. The breather valve sealing mechanism according to claim 5, wherein a second spring (19) is sleeved on the surface of the second valve rod (17), two ends of the second spring (19) are respectively connected with the inner wall of the fixed cover plate (16) and the surface of the air suction valve disc (18), and the protective filter disc (20) is detachably arranged outside an air inlet through hole of the air inlet valve seat (15).
7. 7. A breather valve comprising a breather valve seal mechanism according to any one of claims 1 to 6.

Description

Breather valve sealing mechanism and breather valve Technical Field The utility model relates to the technical field of breather valves, in particular to a breather valve sealing mechanism and a breather valve. Background The breather valve is used as one of the safety accessories of the storage tank and has the function of reducing the evaporation loss of volatile liquid in the normal-pressure and low-pressure storage tanks. The breather valve not only can maintain the air pressure balance in the tank and ensure that the storage tank is prevented from being damaged in case of overpressure and negative pressure, but also can reduce volatilization and loss of medium in the storage tank by utilizing the pressure bearing capacity of the storage tank, and has important roles on safety and environmental protection. However, in the use process of the existing breather valve, the sealing protection effect is poor, the blocking condition occurs, the smoothness of air suction or air exhaust is poor, and the situation that the breather valve is inconvenient to maintain after being damaged exists. Therefore, there is a need to provide a breather valve sealing mechanism and a breather valve. Disclosure of utility model The utility model aims to provide a breather valve sealing mechanism and a breather valve, which can further improve the sealing effect of the breather valve, effectively ensure the smoothness of air suction or air discharge of the breather valve, improve the use effect of the breather valve, and can conveniently overhaul a valve disc structure after the breather valve is damaged, improve the maintenance efficiency so as to solve the problems in the background art. The utility model provides a breather valve sealing mechanism, which comprises a valve body, a first through pipe and a second through pipe, wherein the first through pipe and the second through pipe are arranged on the surface of the valve body, an air outlet valve seat and an air inlet valve seat are respectively arranged in the inner cavities of the first through pipe and the second through pipe, an air outlet valve disc matched with the air outlet valve seat for exhausting is arranged in the first through pipe, a detachable mounting cover plate is arranged at the top of the air outlet valve disc, a sealing mechanism matched with the air outlet valve disc is arranged at the top of the inner cavity of the mounting cover plate, a sealing plunger for improving the sealing effect is arranged at the bottom of the air outlet valve disc, an annular filter piece for preventing dust and exhausting is arranged at the bottom end of the mounting cover plate, an air inlet valve disc matched with the air inlet valve seat for air inlet is arranged in the second through pipe, and a protective filter disc for air inlet protection is arranged below the air inlet valve disc. Preferably, the sealing mechanism comprises a mounting sleeve connected to the center of the mounting cover plate and a first spring sleeved on the surface of the mounting sleeve, wherein the top end of the air outlet valve disc is connected with a first valve rod, the top end of the first valve rod is connected to the inner wall of the mounting sleeve in a sliding manner, and the bottom end of the first spring is connected to the top of the air outlet valve disc. Preferably, the bottom of valve disc is provided with auxiliary seal's counter weight chamber, the inner wall in counter weight chamber can be dismantled and be connected with sealed plunger, the bottom sealing connection of sealed plunger goes out the exhaust through-hole of air valve seat. Preferably, the bottom of installation apron is connected with the link, annular filter movable mounting is in the inside of link, the inner wall of first siphunculus has been seted up and has been given vent to anger logical groove. Preferably, the top of second siphunculus is through mounting hole demountable installation has fixed apron, the top of breathing in the valve disc is connected with the second valve rod, the surface slip cartridge of second valve rod is in the inside of fixed apron. Preferably, the surface of the second valve rod is sleeved with a second spring, two ends of the second spring are respectively connected with the surface of the air suction valve disc on the inner wall of the fixed cover plate, and the protective filter disc is detachably arranged outside an air inlet through hole of the air inlet valve seat. In another aspect, the utility model provides a breather valve comprising the breather valve sealing mechanism. Compared with the prior art, the utility model has the beneficial effects that: The utility model can form double sealing of plunger seal and valve disc lamination between the valve disc and the valve seat by combining the action of the first spring on pressurizing the valve disc through the matching arrangement of the valve body, the first through pipe, the second through pipe, the mounting cover pl