CN-224214777-U - Breather valve

CN224214777UCN 224214777 UCN224214777 UCN 224214777UCN-224214777-U

Abstract

A breather valve comprises a housing, wherein a lower supporting device is fixedly arranged at the bottom of the housing, an elastic connector is fixedly arranged on the lower supporting device, a sealing ring is arranged in the housing, a floating member is slidably arranged in the sealing ring, an airtight partition plate is arranged in the middle of the floating member, two ends of the airtight partition plate are respectively provided with an air inlet grid, the lower part of the airtight partition plate is fixedly connected with the elastic connector, and the sealing ring is nested outside the airtight partition plate in a normal pressure state. The utility model solves the problem of inconvenient air pressure balance control in the medium filling process in the prior art, and realizes the manual operation-free in-tank pumping and exhausting air pressure balance by floating the valve core of the valve body. In particular, the device has simple structure, convenient assembly, low manufacturing cost and maintenance cost and low maintenance frequency.

Inventors

LI YANG
SUN SHOUPENG
ZHANG DANDAN
CHEN MAICUN
LUAN XIAOFEI
YAO LAN
ZHONG WEIQUAN
HAO PENGFEI
HAO ZIJIE

Assignees

焊中(山东)焊接技术有限公司

Dates

Publication Date: 20260508
Application Date: 20250610

Claims (7)

1. A breather valve comprises a shell and is characterized in that a lower supporting device is fixedly arranged at the bottom of the shell, and an elastic connector is fixedly arranged on the lower supporting device; A sealing ring is arranged in the shell, a floating member is slidably arranged in the sealing ring, an airtight partition plate is arranged in the middle of the floating member, and two ends of the airtight partition plate are respectively provided with an air inlet grid; The lower surface of the airtight separation plate is fixedly connected with the elastic connector, and the sealing ring is nested outside the airtight separation plate under normal pressure.
2. The breather valve according to claim 1, wherein the breather valve is further provided with a rain-proof cover body, and the rain-proof cover body is integrally provided; The rain-proof cover main body comprises a rain-proof cover upper cover, a supporting mechanism is arranged below the rain-proof cover upper cover in the middle, and a plurality of air holes are formed in the supporting mechanism in an array mode; the bottom surface of the supporting mechanism is also provided with a flange A.
3. A breather valve according to claim 2, wherein the rain-proof cover body is provided with a guide means a in the middle, the airtight partition is provided with a guide means B in the middle, and the guide means a is slidably connected with the guide means B; A guide device C is arranged under the airtight partition plate in the middle, a guide device D is arranged on the lower supporting device, and the guide device C is connected with the guide device D in a sliding manner.
4. A breather valve according to claim 3, wherein said elastic connection body is provided in said guide means C and guide means D.
5. The breather valve of claim 1, wherein the resilient connector is a spring.
6. A breather valve according to claim 1, wherein an air intake screen is also nested within the air intake mesh above the airtight barrier.
7. The breather valve according to claim 1, wherein a flange B is provided at the upper part of the housing, and the flange B is connected to the flange a; The bottom is also provided with a flange C.

Description

Breather valve Technical Field The utility model relates to the field of valves, in particular to a breather valve. Background The storage or transfer of liquid substances generally uses a tank body as a container, in the process of inputting media, the media in the container are gradually increased to cause the compression of gas in the tank body to increase the pressure in the container, if the pressure in the container is too large, the media cannot be smoothly conveyed into the container and even damage to a pump and a conveying pipeline is caused, in the process of extracting the media, negative pressure is formed in the container due to the gradual reduction of the media in the container, and the continuous negative pressure can also cause damage to the whole container and pumping equipment. Aiming at the problem, the most common treatment mode is to add a balance air port, but the mode can not ensure the safety of medium pumping and conveying, namely the medium pollution risk is higher, and especially the opening and closing of the balance air port also needs manual operation. In the prior art, some valves can be opened and closed based on pressure change, but the defects of complex assembly, high maintenance frequency and the like exist due to unreasonable configuration. In view of the above problems, there is currently no corresponding solution. Disclosure of utility model The utility model aims to overcome the defects of the prior art and provide the breather valve which has a simple structure, can automatically balance air pressure based on pressure change and ensures stable and smooth medium filling and pumping and discharging. The breather valve comprises a shell, a lower supporting device is fixedly arranged at the bottom of the shell, and an elastic connector is fixedly arranged on the lower supporting device; A sealing ring is arranged in the shell, a floating member is slidably arranged in the sealing ring, an airtight partition plate is arranged in the middle of the floating member, and two ends of the airtight partition plate are respectively provided with an air inlet grid; The lower surface of the airtight separation plate is fixedly connected with the elastic connector, and the sealing ring is nested outside the airtight separation plate under normal pressure. The sealing ring is nested outside the airtight partition plate in a normal pressure state, and the sealing inside the tank body is ensured; When the medium is poured into the tank body, the airtight separation plate bears pressure and floats upwards, and the air inlet grid below the airtight separation plate floats upwards, so that internal compressed air is discharged outwards; When the medium is pumped out of the tank, the airtight partition board is pressed and floats downwards, the air inlet grid above the airtight partition board is sunk, and external air enters the tank body to balance air pressure. The utility model solves the problem of inconvenient air pressure balance control in the medium filling process in the prior art, and realizes the manual operation-free in-tank pumping and exhausting air pressure balance by floating the valve core of the valve body. In particular, the device has simple structure, convenient assembly, low manufacturing cost and maintenance cost and low maintenance frequency. Drawings FIG. 1 is a schematic cross-sectional view of a breather valve according to the present utility model; FIG. 2 is a schematic illustration of a respiratory valve assembly according to the present utility model; reference numerals: 1a rain cover main body, 1.1 a rain cover upper cover, 1.2 air holes, 1.3 flange A,1.4 guide device A and 1.5 support mechanisms; 2 outer shell, 2.1 sealing ring, 2.2 flange B,2.4 lower support device, 2.5 flange C,2.6 guide device D; 3 floating components, 3.1 air inlet grids, 3.2 airtight clapboards, 3.3 air suction filter screens, 3.4 guiding devices B and 3.5 guiding devices C; 4 an elastic connector; The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments. Detailed Description Referring to fig. 1 and 2, the breather valve of the present utility model includes a housing 2, a lower support device 2.4 is fixedly arranged at the bottom of the housing 2, and an elastic connector 4 is fixedly arranged on the lower support device 2.4; A sealing ring 2.1 is arranged in the shell 2, a floating member 3 is arranged in the sealing ring 2.1 in a sliding manner, an airtight partition plate 3.2 is arranged in the middle of the floating member 3, and two ends of the airtight partition plate 3.2 are respectively provided with an air inlet grid 3.1; The lower surface of the airtight separation plate 3.2 is fixedly connected with the elastic connector 4, and the sealing ring 2.1 is nested outside the airtight separation plate 3.2 under normal pressure. The ef