CN211694358U - Linkage type breather valve - Google Patents
Linkage type breather valve Download PDFInfo
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- CN211694358U CN211694358U CN202020001701.8U CN202020001701U CN211694358U CN 211694358 U CN211694358 U CN 211694358U CN 202020001701 U CN202020001701 U CN 202020001701U CN 211694358 U CN211694358 U CN 211694358U
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Abstract
A linked respiratory valve comprising: the valve seat is of a structure with a large upper end and a small lower end, the upper end and the lower end of the valve seat are respectively provided with an upper connecting flange and a lower connecting flange, and the upper valve disc is movably connected to the upper connecting flange through four connecting components; a lower valve disc having a diameter greater than the intermediate through hole of the upper valve disc ring body to close the intermediate through hole; the center of the lower valve disc is provided with a central through hole; the lower valve disc is arranged below the upper valve disc; the upper end surface of the lower valve disc is provided with a lower sealing gasket, and a lower pressing ring and a screw are fixed; the lower sealing gasket on the upper end surface of the lower valve disc is abutted against a second protrusion annularly arranged on the inner hole side of the bottom surface of the upper valve disc; the central guide pillar penetrates through a central hole of a boss of a cross-shaped support rod of the upper valve disc from a central through hole of the lower valve disc, the central spring is sleeved on the upper part of the central guide pillar, and the lower end of the central spring is fixed on the boss and is locked by a locking nut and a spring retainer ring; the protective cover is arranged above the valve seat by four studs penetrating through four connecting through holes of the outer ring of the connecting flange on the valve seat and is locked by stud locking nuts.
Description
Technical Field
The utility model relates to a valve technology, in particular to linkage type breather valve.
Background
At present, the types of breather valve discharge devices at the top end of a storage tank body are various, more split type breather valves are used, and the exhalation action and the inhalation action of the breather valve discharge devices are realized by two different positions. When the valve is opened at positive pressure, the upper valve disc moves upwards along a guide post, so that the upper valve disc is prone to offset and is stuck and slightly misplaced during resetting; when the negative pressure is opened, the lower valve disc is under the unbalanced action of the pressure difference acting force, so that the acting force applied to the circumference is uneven when the lower valve disc moves up and down, the lower valve disc is easy to deflect and clamp, and the lower valve disc is easy to fail.
Disclosure of Invention
An object of the utility model is to design a linkage type breather valve, solve storage tank body breather valve go up the valve disc not good and the valve disc skew that leads to down the valve disc atress inhomogeneous with disk seat center contact ratio, sealed not good, the easy card pause scheduling problem, have open rapidly, swift, difficult card pause, sealed effectual, and advantage such as difficult inefficacy.
In order to achieve the above purpose, the technical scheme of the utility model is that:
a linked respiratory valve, comprising: the valve seat is of a structure with a large upper end and a small lower end, the upper end and the lower end of the valve seat are respectively provided with an upper connecting flange and a lower connecting flange, the inner ring of the upper connecting flange is uniformly provided with four guide holes along the circumferential direction, the outer ring of the upper connecting flange is uniformly provided with four connecting through holes along the circumferential direction, and the four connecting through holes and the four guide holes are arranged in a staggered manner; a first bulge is annularly arranged on the upper end surface of the upper connecting flange close to the inner hole; the upper valve disc is a ring body, and the center of the upper valve disc is provided with a cross-shaped supporting rod with a boss; the upper valve disc is provided with four through holes along the circumferential direction, corresponds to the four guide holes of the connecting flange on the valve seat and is movably connected to the upper connecting flange through four connecting components; a central hole is formed in the center of the boss; a second bulge is annularly arranged on the inner hole side of the bottom surface of the upper valve plate; the bottom surface of the upper valve disc is provided with an upper sealing gasket, and is fixed by an upper pressing ring and a screw; the bottom surface sealing gasket of the upper valve plate is abutted against a first bulge annularly arranged on the upper end surface of the upper connecting flange; the upper end of the through hole is provided with a groove, and a T-shaped guide sleeve is arranged in the through hole; the connection assembly, comprising: the guide post is inserted into the guide sleeve in the guide hole of the connecting flange on the valve seat from the through hole of the upper valve disc to connect the upper valve disc with the connecting flange on the valve seat; the spring is sleeved on the upper part of the guide pillar, and the upper end and the lower end of the spring are provided with washers and locked by nuts; a lower valve disc, the diameter of which is larger than the middle through hole of the upper valve disc ring body, so that the middle through hole can be closed; the center of the lower valve disc is provided with a central through hole; the lower valve disc is arranged below the upper valve disc; the upper end surface of the lower valve disc is provided with a lower sealing gasket, and a lower pressing ring and a screw are fixed; the lower sealing gasket on the upper end surface of the lower valve disc abuts against a second protrusion annularly arranged on the inner hole side of the bottom surface of the upper valve disc; the central guide pillar penetrates through a central hole of a boss of a cross-shaped support rod of the upper valve disc from a central through hole of the lower valve disc, the central spring is sleeved on the upper part of the central guide pillar, and the lower end of the central spring is fixed on the boss and is locked by a locking nut and a spring retainer ring; the protective cover is arranged above the valve seat through four connecting through holes of which four studs penetrate through the outer ring of the connecting flange on the valve seat and is locked by stud locking nuts.
When the positive pressure in the bin tank exceeds the set pressure of the breathing device, the upper valve disc and the lower valve disc move upwards together along the directions of the four guide posts and compress the four springs, so that the height of a release gap is formed between the upper valve disc and the valve seat; when the internal pressure, the external pressure and the pressure of the valve mechanism reach balance or are lower than a set value, the upper valve disc is attached to the valve seat and closed; when the pressure in the bin tank is negative pressure and exceeds a negative pressure set value, the lower valve disc stretches the central guide pillar to move downwards along the central guide sleeve of the upper valve disc, so that a gap is formed between the lower valve disc and the upper valve disc, and the inner cavity of the bin tank is communicated with the outside at the moment. When the internal and external pressure reaches balance, the lower valve disc drives the central guide post to move upwards, and the central guide post is attached to the upper valve disc and closed.
The utility model has the advantages that:
when the breathing device makes an exhalation movement, the upper valve disc and the lower valve disc are attached together and move upwards along the central direction of the four guide posts, and the pressure is released; when the breathing device does inhalation movement, the lower valve disc stretches the central guide post in the central guide sleeve of the upper valve disc to move downwards along the central direction, the inside and the outside are communicated, and outside air or medium enters the bin to be decompressed.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a cross-sectional view of an embodiment of the present invention.
Detailed Description
Referring to fig. 1 and 2, the linkage type breather valve of the present invention comprises:
the valve seat 1 is of a structure with a large upper end and a small lower end, the upper end and the lower end of the valve seat are respectively provided with an upper connecting flange 11 and a lower connecting flange 12, the inner ring of the upper connecting flange 11 is uniformly provided with four guide holes 111 along the circumferential direction, the outer ring of the upper connecting flange 11 is uniformly provided with four connecting through holes 112 along the circumferential direction, and the four connecting through holes 112 and the four guide holes 111 are arranged in a staggered manner; a first bulge 113 is annularly arranged on the upper end surface of the upper connecting flange 11 near the inner hole;
the upper valve disc 2 is a ring body, and the center of the upper valve disc is provided with a cross-shaped support rod 21 with a boss 211; the upper valve disc 2 is provided with four through holes 22 along the circumferential direction, corresponds to the four guide holes 111 of the connecting flange 11 on the valve seat 1, and is movably connected to the upper connecting flange 11 through four connecting components 3; the center of the boss 211 is provided with a central hole; a second bulge 212 is annularly arranged on the inner hole side of the bottom surface of the upper valve disc 2; the bottom surface of the upper valve disc 2 is provided with an upper sealing gasket 23, and is fixed by an upper pressing ring 24 and a screw; the sealing gasket 23 on the bottom surface of the upper valve disc 2 is abutted against the first protrusion 114 annularly arranged on the upper end surface of the upper connecting flange 11; the upper end of the through hole 22 is provided with a groove, and a T-shaped guide sleeve 24 is arranged in the through hole 22;
the connecting assembly 3 includes:
the guide post 31 is inserted into the guide sleeve 113 in the guide hole 111 of the connecting flange 11 on the valve seat 1 from the through hole 22 of the upper valve disc 2 to connect the upper valve disc 2 with the connecting flange 11 on the valve seat 1;
a spring 32, which is sleeved on the upper part of the guide post 31, is provided with washers 33 and 33' at the upper and lower ends and is locked by a nut 34;
a lower valve disc 4, the diameter of which is larger than the middle through hole of the ring body of the upper valve disc 2, so that the middle through hole can be closed; the center of the lower valve disc 4 is provided with a central through hole 41; the lower valve disc 4 is arranged below the upper valve disc 2; the upper end surface of the lower valve disc 4 is provided with a lower sealing gasket 42, and a lower pressing ring 43 is fixed by a screw; the lower sealing gasket 42 on the upper end surface of the lower valve disc 4 is abutted against a second protrusion 212 annularly arranged on the inner hole side of the bottom surface of the upper valve disc 2;
the central guide post 5 penetrates through a central hole of a boss 211 of the cross-shaped support rod 21 of the upper valve disc 2 from a central through hole 41 of the lower valve disc 4, the central spring 6 is sleeved on the upper part of the central guide post 5, and the lower end of the central spring is fixed on the boss 211 and is locked by a locking nut 7 and a spring retainer ring 8;
the protective cover 9 is arranged above the valve seat 1 by four studs 10 penetrating through four connecting through holes 112 on the outer ring of the connecting flange 11 on the valve seat 1 and locked by stud locking nuts.
The protection casing is used for protecting whole respiratory motion mechanism, and the disk seat is fixed in the storehouse jar top.
When the pressure in the bin is positive pressure and exceeds a set value, the lower valve cover and the upper valve cover are lifted upwards by compressing the four springs along the central line direction of the four guide pillars, so that a certain height gap is formed between the upper pressing ring and the first raised end face of the valve seat, at the moment, the central guide pillar, the central spring and the spring retainer ring move upwards along with the lower valve cover, the lower valve cover and the upper valve cover are attached together, the lower valve cover and the upper valve cover are relatively fixed, and when the inside and the outside are communicated through the formed gap height, the internal positive pressure is removed through the gap height. When the pressure reaches the balance or is lower than the pressure of the four springs and the related gravity parts, the upper valve disc and the upper sealing gasket thereof press the valve seat port tightly.
When the pressure in the bin tank is a negative value, at the moment, the upper valve disc is fixed, the lower valve disc stretches the central guide pillar to move downwards along the direction of the central line of the upper valve disc guide sleeve, the central spring, the spring retainer ring and the locking nut move downwards along with the lower valve disc to form the gap height between the lower sealing gasket and the end face of the second protrusion of the upper valve disc, when the elastic force of the central spring of the gas outside the bin tank and the weight and pressure of related accessories are balanced or lower than a set value, the lower sealing gasket of the lower valve disc and the stud locking nut of the lower valve disc are attached together with the second protrusion of the upper valve disc.
When the patient exhales, the upper valve disc and the lower valve disc are attached together and move upwards along the central line direction of the four guide posts; when the suction device performs suction movement, the upper valve disc is fixed, and the lower valve disc stretches the central guide pillar to move downwards along the central direction of the central guide sleeve of the upper valve disc.
Claims (1)
1. A linked breather valve, comprising:
the valve seat is of a structure with a large upper end and a small lower end, the upper end and the lower end of the valve seat are respectively provided with an upper connecting flange and a lower connecting flange, the inner ring of the upper connecting flange is uniformly provided with four guide holes along the circumferential direction, the outer ring of the upper connecting flange is uniformly provided with four connecting through holes along the circumferential direction, and the four connecting through holes and the four guide holes are arranged in a staggered manner; a first bulge is annularly arranged on the upper end surface of the upper connecting flange close to the inner hole;
the upper valve disc is a ring body, and the center of the upper valve disc is provided with a cross-shaped supporting rod with a boss; the upper valve disc is provided with four through holes along the circumferential direction, corresponds to the four guide holes of the connecting flange on the valve seat and is movably connected to the upper connecting flange through four connecting components; a central hole is formed in the center of the boss; a second bulge is annularly arranged on the inner hole side of the bottom surface of the upper valve plate; the bottom surface of the upper valve disc is provided with an upper sealing gasket, and is fixed by an upper pressing ring and a screw; the bottom surface sealing gasket of the upper valve plate is abutted against a first bulge annularly arranged on the upper end surface of the upper connecting flange; the upper end of the through hole is provided with a groove, and a T-shaped guide sleeve is arranged in the through hole;
the connection assembly, comprising:
the guide post is inserted into the guide sleeve in the guide hole of the connecting flange on the valve seat from the through hole of the upper valve disc to connect the upper valve disc with the connecting flange on the valve seat;
the spring is sleeved on the upper part of the guide pillar, and the upper end and the lower end of the spring are provided with washers and locked by nuts;
a lower valve disc, the diameter of which is larger than the middle through hole of the upper valve disc ring body, so that the middle through hole can be closed; the center of the lower valve disc is provided with a central through hole; the lower valve disc is arranged below the upper valve disc; the upper end surface of the lower valve disc is provided with a lower sealing gasket, and a lower pressing ring and a screw are fixed; the lower sealing gasket on the upper end surface of the lower valve disc abuts against a second protrusion annularly arranged on the inner hole side of the bottom surface of the upper valve disc;
the central guide pillar penetrates through a central hole of a boss of a cross-shaped support rod of the upper valve disc from a central through hole of the lower valve disc, the central spring is sleeved on the upper part of the central guide pillar, and the lower end of the central spring is fixed on the boss and is locked by a locking nut and a spring retainer ring;
the protective cover is arranged above the valve seat through four connecting through holes of which four studs penetrate through the outer ring of the connecting flange on the valve seat and is locked by stud locking nuts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020001701.8U CN211694358U (en) | 2020-01-02 | 2020-01-02 | Linkage type breather valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020001701.8U CN211694358U (en) | 2020-01-02 | 2020-01-02 | Linkage type breather valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211694358U true CN211694358U (en) | 2020-10-16 |
Family
ID=72798622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020001701.8U Active CN211694358U (en) | 2020-01-02 | 2020-01-02 | Linkage type breather valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211694358U (en) |
-
2020
- 2020-01-02 CN CN202020001701.8U patent/CN211694358U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 201708, No. 1356, Xin Xie Road, Huaxin Town, Qingpu District, Shanghai Patentee after: Shanghai Bolong Equipment Technology Co., Ltd Address before: 201708, No. 1356, Xin Xie Road, Huaxin Town, Qingpu District, Shanghai Patentee before: SHANGHAI BLOOM POWDER ENGINEERING Inc. |