CN209084109U - A kind of corrosion-resistant breather valve - Google Patents
A kind of corrosion-resistant breather valve Download PDFInfo
- Publication number
- CN209084109U CN209084109U CN201821858286.7U CN201821858286U CN209084109U CN 209084109 U CN209084109 U CN 209084109U CN 201821858286 U CN201821858286 U CN 201821858286U CN 209084109 U CN209084109 U CN 209084109U
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- piston rod
- positive
- negative
- idler wheel
- corrosion
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- 238000005260 corrosion Methods 0.000 title claims abstract description 15
- 230000007797 corrosion Effects 0.000 title claims abstract description 15
- 238000006073 displacement reaction Methods 0.000 claims abstract description 14
- 238000005096 rolling process Methods 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 4
- 230000006978 adaptation Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims 1
- 230000007423 decrease Effects 0.000 description 5
- 230000001502 supplementing effect Effects 0.000 description 4
- 230000029058 respiratory gaseous exchange Effects 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
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- Self-Closing Valves And Venting Or Aerating Valves (AREA)
Abstract
The utility model proposes a kind of corrosion-resistant breather valves, including valve body, upper cover, it is located at the intracorporal positive pressure valve disc of valve, negative pressure valve disc, it is located at the first blow vent of body base and is located at the second blow vent of valve body side, the upper lid is equipped with limited cover, the limited cover bottom opens up fluted, the negative piston rod being adapted to groove is inserted on the negative pressure valve disc, the negative piston rod confronting grooves can upper and lower displacement, the negative piston rod bottom is equipped with limiting slot, positive piston rod compatible with limiting slot is inserted on the positive pressure valve disc, the positive piston rod relative limit slot can upper and lower displacement, the positive piston rod, negative piston rod and the coaxial arrangement of the first blow vent.Compared to existing breather valve, the utility model structure is simple, high-quality, long service life and highly-safe.
Description
Technical field
The utility model relates to valve fields, and in particular to a kind of corrosion-resistant breather valve.
Background technique
Breather valve is maintenance cartridge gas pressure balance, reduces the energy-saving safe product of medium volatilization, breather valve makes full use of storage
The bearing capacity of tank itself reduces media discharge, and principle is that the exhaust of storage tank is being controlled using the weight of positive/negative-pressure valve disc just
Pressure and intake negative-pressure.When within the scope of control operating pressure of the pressure of medium in tank in breather valve, breather valve does not work, and protects
Hold the airtightness of oil tank；When supplementing medium in tank, make the pressure rise of the tank internal upper part gas compartment, reaches the operation of breather valve
When positive pressure, pressure valve is opened, and gas is escaped from breather valve expiratory port, and pressure inside the tank is made not continue to increase；It is taken out when outside past tank
Medium out declines the pressure of the tank internal upper part gas compartment, and when reaching the operation negative pressure of breather valve, the atmosphere outside tank, which will open, is exhaled
The negative pressure valve disc for inhaling valve opens, and enters ambient atmos in tank, the pressure in tank is made not continue to decline, and allows in tank and outside tank
Air pressure balance, to protect the safety device of storage tank.
Existing breather valve includes valve body, upper cover, is located at the intracorporal positive pressure valve disc of valve, negative pressure valve disc, is located at body base
The first blow vent and be located at the second blow vent of valve body side.Piston rod on existing positive and negative pressure valve disc is easy to produce
Deviate, causes the valve disc in breather valve is stuck not open in use for some time, it is easy to damage so as to cause breather valve, use the longevity
Life is not grown, and security risk is easy to produce.
Utility model content
Based on the above issues, the utility model aim be to provide a kind of simple structure, high-quality, long service life and
Highly-safe breather valve.
In view of the above problems, providing following technical solution: a kind of corrosion-resistant breather valve, including valve body, upper cover, it is located at valve
Intracorporal positive pressure valve disc, negative pressure valve disc, the first blow vent for being located at body base and the second blow vent for being located at valve body side,
The upper lid is equipped with limited cover, and the limited cover bottom opens up fluted, is inserted on the negative pressure valve disc and is adapted to groove
Negative piston rod, the negative piston rod confronting grooves can upper and lower displacement, the negative piston rod bottom be equipped with limiting slot, the positive pressure
Be inserted with positive piston rod compatible with limiting slot on valve disc, the positive piston rod relative limit slot can upper and lower displacement, it is described just
Piston rod, negative piston rod and the coaxial arrangement of the first blow vent.
In above structure, when within the scope of control operating pressure of the pressure of medium in tank in breather valve, breather valve is not
Work, keeps the airtightness of oil tank；When supplementing medium in tank, make the pressure rise of the tank internal upper part gas compartment, reaches breathing
When the operation positive pressure of valve, gas enters in valve body from the first blow vent, by positive valve disk drive positive piston rod in limiting slot to
Upper jack-up, gas are escaped from the second blow vent, and pressure inside the tank is made not continue to increase, when air pressure in tank and atmospheric pressure balance,
Positive valve disk drives positive piston rod to reset；When extracting medium out outside toward tank, declines the pressure of the tank internal upper part gas compartment, reach and exhale
When inhaling the operation negative pressure of valve, negative pressure valve disk is driven negative piston rod to shift up in groove by the atmosphere outside tank, makes ambient atmos
Into in tank, the pressure in tank is made not continue to decline, when air pressure in tank and atmospheric pressure balance, negative pressure valve disk drives negative piston
Bar resets.By the way that positive piston rod, negative piston rod and the first blow vent to be coaxially disposed, and positive piston rod is fitted with limiting slot
Match, negative piston rod is adapted to groove, can prevent positive and negative pressure valve disc deviate initial position, so as to avoid positive and negative pressure valve disc without
The case where method is opened, increases the reliability and safety of the utility model.
The utility model is further arranged to, and the positive piston rod is equipped with rolling mechanism, and the rolling mechanism includes diameter
To the push rod being plugged on positive piston rod and the idler wheel for being connected to push rod end and being in contact with limiting slot inner wall, the idler wheel
Opposite push rod can be rotated, and the outer wall of the positive piston rod is equipped with arc groove, and the idler wheel is located in arc groove.
In above structure, when positive valve disk drives positive piston rod to move up, drives idler wheel to scroll up by push rod, lead to
It crosses setting idler wheel and can limit the generation of positive piston rod and move radially, so that positive piston rod be prevented to generate offset and cause and limit
Frictional force between slot becomes larger, and influences the rising of positive pressure valve disc.
The utility model is further arranged to, and the limiting slot is equipped with track compatible with idler wheel.
In above structure, the frictional force between idler wheel and limiting slot can be reduced by the way that track is arranged, and can prevent from rolling
Axial dipole field is taken turns, to increase the stability of idler wheel and the reliability of the utility model.
The utility model is further arranged to, and the positive piston rod is equipped with through-hole in the radial direction, and the push rod is located at
In through-hole, the push rod end is arranged with spring, and the push rod is equipped with the retaining ring for preventing spring from deviating from, the rolling mechanism phase
To being provided with two groups.
In above structure, when idler wheel and limiting slot inner wall generate friction for a long time, limiting slot inner wall generates abrasion, by setting
Wear-compensating can be carried out to limiting slot by setting spring, so that idler wheel offsets with limiting slot always, increase the utility model can
By property.Stability when can increase idler wheel relative limit slot activity by the way that push rod is arranged.Bullet can be prevented by the way that retaining ring is arranged
Spring abjection, and retaining ring and through-hole wall is enabled to cooperate, increases the stability of push rod, so that increase the utility model can
By property.
The utility model is further arranged to, and the push rod front end is equipped with connecting rod in the radial direction, and the idler wheel is set
There are two and positioned at connecting rod both ends.
In above structure, the stability when displacement of positive piston rod can be increased by two idler wheels of setting, to increase
The reliability of the utility model.
The utility model is further arranged to, and the idler wheel two sides are equipped with the blocker ring for preventing it from generating axial displacement.
In above structure, it can prevent idler wheel from generating offset by the way that blocker ring is arranged, avoid the stuck situation of idler wheel, from
And increase the reliability of the utility model.
The utility model is further arranged to, and bearing is equipped between the idler wheel and connecting rod.
Using the above structure, idler wheel can be reduced with respect to the resistance that connecting rod rolls, it is ensured that positive piston rod is displaced steady
It is qualitative, to increase the stability and reliability of the utility model.
The utility model is further arranged to, and the junction between the upper cover and valve body is equipped with sealing ring.
Using the above structure, the leakproofness between upper cover and valve body can be increased, so as to avoid the leakage of gas, increased
The reliability of the utility model.
The utility model has the beneficial effects that comparing existing breather valve, the utility model structure is simple, it is high-quality, use
Service life is long and highly-safe.When within the scope of control operating pressure of the pressure of medium in tank in breather valve, breather valve is not
Work, keeps the airtightness of oil tank；When supplementing medium in tank, make the pressure rise of the tank internal upper part gas compartment, reaches breathing
When the operation positive pressure of valve, gas enters in valve body from the first blow vent, by positive valve disk drive positive piston rod in limiting slot to
Upper jack-up, gas are escaped from the second blow vent, and pressure inside the tank is made not continue to increase, when air pressure in tank and atmospheric pressure balance,
Positive valve disk drives positive piston rod to reset；When extracting medium out outside toward tank, declines the pressure of the tank internal upper part gas compartment, reach and exhale
When inhaling the operation negative pressure of valve, negative pressure valve disk is driven negative piston rod to shift up in groove by the atmosphere outside tank, makes ambient atmos
Into in tank, the pressure in tank is made not continue to decline, when air pressure in tank and atmospheric pressure balance, negative pressure valve disk drives negative piston
Bar resets.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the schematic view of the front view of idler wheel mechanism in the utility model.
Fig. 3 is the partial enlarged view in Fig. 1 at A.
Figure label meaning: 1- valve body；The first blow vent of 11-；The second blow vent of 12-；13- sealing ring；2- upper cover；21-
Limited cover；22- groove；3- positive pressure valve disc；The positive piston rod of 31-；311- arc groove；312- through-hole；4- negative pressure valve disc；41- is negative to live
Stopper rod；42- limiting slot；43- track；5- rolling mechanism；51- push rod；52- idler wheel；53- connecting rod；6- spring；7- retaining ring；8-
Blocker ring.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below
Embodiment is not intended to limit the scope of the present invention for illustrating the utility model.
A kind of corrosion-resistant breather valve as shown in Figure 1 to Figure 3, including valve body 1, upper cover 2, the positive valve being located in valve body 1
Disk 3, negative pressure valve disc 4, the first blow vent 11 for being located at 1 bottom of valve body and the second blow vent 11 for being located at 1 side of valve body, it is described
Upper cover 2 is equipped with limited cover 21, and 21 bottom of limited cover opens up fluted 22, is inserted on the negative pressure valve disc 4 and groove
22 adaptation negative piston rods 41, negative 41 confronting grooves 22 of piston rod can upper and lower displacement, negative 41 bottom of piston rod is equipped with
Limiting slot 42, positive piston rod 31 compatible with limiting slot 42 is inserted on the positive pressure valve disc 3, and the positive piston rod 31 is opposite
Limiting slot 42 can upper and lower displacement, the positive piston rod 31, negative piston rod 41 and the first blow vent 11 coaxial arrangement.
In above structure, when within the scope of control operating pressure of the pressure of medium in tank in breather valve, breather valve is not
Work, keeps the airtightness of oil tank；When supplementing medium in tank, make the pressure rise of the tank internal upper part gas compartment, reaches breathing
When the operation positive pressure of valve, gas enters in valve body 1 from the first blow vent 11, drives positive piston rod 31 limiting positive pressure valve disc 3
It is jacked up upwards in slot 42, gas is escaped from the second blow vent 11, makes pressure inside the tank not continue to increase, when air pressure in tank and atmosphere
When flattening weighing apparatus, positive pressure valve disc 3 drives positive piston rod 31 to reset；When extracting medium out outside toward tank, make the pressure of the tank internal upper part gas compartment
Power decline, when reaching the operation negative pressure of breather valve, atmosphere outside tank by negative pressure valve disc 4 drive negative piston rod 41 in groove 22 to
Upper displacement, enters ambient atmos in tank, and the pressure in tank is made not continue to decline, when air pressure in tank and atmospheric pressure balance,
Negative pressure valve disc 4 drives negative piston rod 41 to reset.By the way that positive piston rod 31, negative piston rod 41 and the first blow vent 11 are coaxially set
It sets, and positive piston rod 31 is adapted to limiting slot 42, negative piston rod 41 is adapted to groove 22, and positive and negative pressure valve disc 4 can be prevented inclined
From initial position, the case where can not being opened so as to avoid positive and negative pressure valve disc 4, increase the utility model reliability and
Safety.
In the present embodiment, the positive piston rod 31 is equipped with rolling mechanism 5, and the rolling mechanism 5 includes radial is plugged in
Push rod 51 on positive piston rod 31 and the idler wheel 52 for being connected to 51 end of push rod and being in contact with 42 inner wall of limiting slot, the rolling
The opposite push rod 51 of wheel 52 can be rotated, and the outer wall of the positive piston rod 31 is equipped with arc groove 311, and the idler wheel 52 is located at arc groove
In 311.
In above structure, when positive pressure valve disc 3 drives positive piston rod 31 to move up, drive idler wheel 52 upward by push rod 51
It rolls, the positive generation of piston rod 31 can be limited by setting idler wheel 52 and moved radially, so that positive piston rod 31 be prevented to generate partially
It moves and the frictional force between limiting slot 42 is caused to become larger, influence the rising of positive pressure valve disc 3.
In the present embodiment, the limiting slot 42 is equipped with track 43 compatible with idler wheel 52.
In above structure, the frictional force between idler wheel 52 and limiting slot 42 can be reduced by the way that track 43 is arranged, and can
52 axial dipole field of idler wheel is prevented, to increase the stability of idler wheel 52 and the reliability of the utility model.
In the present embodiment, the positive piston rod 31 is equipped with through-hole 312 in the radial direction, and the push rod 51 is located at through-hole
In 312,51 end of push rod is arranged with spring 6, and the push rod 51 is equipped with the retaining ring 7 for preventing spring 6 from deviating from, the rolling
Mechanism 5 is relatively set with two groups.
In above structure, when idler wheel 52 and 42 inner wall of limiting slot generate friction for a long time, 42 inner wall of limiting slot generates abrasion,
Wear-compensating can be carried out to limiting slot 42 by setting spring 6, so that idler wheel 52 offsets with limiting slot 42 always, increase this
The reliability of utility model.Stability when can increase by 52 relative limit slot of idler wheel, 42 activity by the way that push rod 51 is arranged.Pass through
Setting retaining ring 7 can prevent spring 6 from deviating from, and retaining ring 7 and 312 inner wall of through-hole is enabled to cooperate, and increase the stabilization of push rod 51
Property, to increase the reliability of the utility model.
In the present embodiment, 51 front end of push rod is equipped with connecting rod 53 in the radial direction, there are two the idler wheel 52 is set
And it is located at 53 both ends of connecting rod.
In above structure, the stability when displacement of positive piston rod 31 can be increased by two idler wheels 52 of setting, to increase
The reliability of the utility model is added.
In the present embodiment, 52 two sides of idler wheel are equipped with the blocker ring 8 for preventing it from generating axial displacement.
In above structure, it can prevent idler wheel 52 from generating offset by the way that blocker ring 8 is arranged, avoid the stuck feelings of idler wheel 52
Condition, to increase the reliability of the utility model.
In the present embodiment, bearing is equipped between the idler wheel 52 and connecting rod 53.
Using the above structure, idler wheel 52 can be reduced with respect to the resistance that connecting rod 53 rolls, it is ensured that positive 31, piston rod
The stability of shifting, to increase the stability and reliability of the utility model.
In the present embodiment, the junction between the upper cover 2 and valve body 1 is equipped with sealing ring 13.
Using the above structure, the leakproofness between upper cover 2 and valve body 1 can be increased, so as to avoid the leakage of gas, increased
The reliability of the utility model is added.
In the present embodiment, the upper cover 2, valve body 1, positive and negative pressure valve disc 4 are all made of polytetrafluoroethylene (PTFE) material, to increase
The corrosion resistance of the utility model.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, without deviating from the technical principle of the utility model, several improvements and modifications, above-mentioned vacation can also be made
If these improvements and modifications also should be regarded as the protection scope of the utility model.
Claims (8)
1. a kind of corrosion-resistant breather valve, including valve body, upper cover, it is located at the intracorporal positive pressure valve disc of valve, negative pressure valve disc, is located at valve body bottom
First blow vent in portion and the second blow vent for being located at valve body side, it is characterised in that: the upper lid is equipped with limited cover, institute
It states limited cover bottom and opens up fluted, the negative piston rod being adapted to groove, the negative piston rod are inserted on the negative pressure valve disc
Confronting grooves can upper and lower displacement, the negative piston rod bottom is equipped with limiting slot, is inserted with and limiting slot phase on the positive pressure valve disc
Adaptation positive piston rod, the positive piston rod relative limit slot can upper and lower displacement, the positive piston rod, negative piston rod and first
Blow vent coaxial arrangement.
2. a kind of corrosion-resistant breather valve according to claim 1, it is characterised in that: the positive piston rod is equipped with roller press
Structure, the rolling mechanism include the radial push rod being plugged on positive piston rod and be connected to push rod end and with limiting slot inner wall
The idler wheel being in contact, the idler wheel can be rotated with respect to push rod, and the outer wall of the positive piston rod is equipped with arc groove, the idler wheel position
In in arc groove.
3. a kind of corrosion-resistant breather valve according to claim 2, it is characterised in that: the limiting slot is equipped with and idler wheel phase
The track of adaptation.
4. a kind of corrosion-resistant breather valve according to claim 3, it is characterised in that: the positive piston rod is in the radial direction
Equipped with through-hole, the push rod is located in through-hole, and the push rod end is arranged with spring, and the push rod, which is equipped with, prevents spring from deviating from
Retaining ring, the rolling mechanism is relatively set with two groups.
5. a kind of corrosion-resistant breather valve according to claim 3, it is characterised in that: the push rod front end is in the radial direction
Equipped with connecting rod, the idler wheel sets there are two and is located at connecting rod both ends.
6. a kind of corrosion-resistant breather valve according to claim 5, it is characterised in that: the idler wheel two sides, which are equipped with, prevents its production
The blocker ring of raw axial displacement.
7. a kind of corrosion-resistant breather valve according to claim 2, it is characterised in that: be equipped between the idler wheel and connecting rod
Bearing.
8. a kind of corrosion-resistant breather valve according to claim 1, it is characterised in that: the connection between the upper cover and valve body
Place is equipped with sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821858286.7U CN209084109U (en) | 2018-11-12 | 2018-11-12 | A kind of corrosion-resistant breather valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821858286.7U CN209084109U (en) | 2018-11-12 | 2018-11-12 | A kind of corrosion-resistant breather valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209084109U true CN209084109U (en) | 2019-07-09 |
Family
ID=67123631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821858286.7U Active CN209084109U (en) | 2018-11-12 | 2018-11-12 | A kind of corrosion-resistant breather valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209084109U (en) |
-
2018
- 2018-11-12 CN CN201821858286.7U patent/CN209084109U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A corrosion resistant breathing valve Effective date of registration: 20200909 Granted publication date: 20190709 Pledgee: Agricultural Bank of China Limited Wenzhou Ouhai sub branch Pledgor: ZHEJIANG BAITONG ANTICORROSION EQUIPMENT Co.,Ltd. Registration number: Y2020330000657 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |