CN207297999U - A kind of basin tank deck breather valve - Google Patents

Abstract

The utility model provides a kind of basin tank deck breather valve, including：Cavity is breathed, it is connected by pipeline with the chamber of basin, so that basin chamber indoor gas passes in and out；Pressure relief valve body, is arranged on the breathing cavity top and coupled logical, the pressure relief valve body includes pressure release chamber, is arranged on the elastomeric pad of the pressure release chamber upper end connector and the First piston bar through the elastomeric pad；When the pressure-releasing chamber room pressure is less than the second air pressure threshold value, elastic packing is formed between elastomeric pad and First piston bar；When air pressure is higher than the first air pressure threshold value in the respiratory cavity body, gases at high pressure enter in the pressure-releasing chamber room, when the pressure-releasing chamber room pressure is higher than the second air pressure threshold value, the indoor gases at high pressure of pressure-releasing chamber are broken through the elastic packing between elastomeric pad and First piston bar and are discharged outside pressure-releasing chamber room.The utility model can avoid breather valve from discharging micro- gases at high pressure by opening relief valve, will not cause gas in outside air tank switching pollution tank.

Description

A kind of basin tank deck breather valve

Technical field

Breather valve technical field is the utility model is related to, in particular to a kind of basin tank deck breather valve.

Background technology

At present, the industry such as food fermentation often uses hygiene-type basin as fermentation tank, and often occurs during the fermentation Ambient atmosphere enters fermentation tank, and the problems such as pollute article in fermentation tank.Therefore, it is micro- in air in fermentation process in order to prevent Biology etc. invades fermentation tank, and fermentation tank is protected frequently with positive pressure pure air, enters tank to prevent non-pure air outside tank Internal portion.

China Patent No.：CN105546171A, discloses a kind of basin tank deck breather valve, including：Valve body is breathed, thereon Pure air entrance and clean air outlet are provided with, the clean air outlet connects the tank deck of basin by pipeline；Upper valve Body mechanism, is arranged on the top of the breathing valve body, it includes upper valve body, and can depart from or combine with the upper valve body Upper valve core, the upper valve core depart from when air pressure is higher than the first predetermined threshold in the breathing valve body with the upper valve body, with Escape gases at high pressure；Lower valve body mechanism, is arranged on the lower part of the breathing valve body, it includes lower valve body, and can be with institute State lower valve body depart from or combine bottom spool, the bottom spool it is described breathing valve body in air pressure be less than the second predetermined threshold when Depart from the lower valve body, so that gas Zhong enters the air pressure balanced in the breathing valve body.

Although this storage tank breathing valve can play the bidirectional modulation of positive pressure and negative pressure, it is in pressure release will be by super Extrude mouth to be regulated and controled, when on the one hand pressure is micro- high in storage fills, it is necessary to pressure release is carried out by superpressure outlet is opened, it is easily right Valve body causes to damage, while adds labor intensity；On the other hand when pressure is micro- high in storage fills, it is easy to open superpressure outlet pressure release Cause ambient atmosphere to be poured in down a chimney, pollute basin.

Utility model content

In consideration of it, the utility model proposes a kind of basin tank deck breather valve, it is intended to solves existing breather valve and passes through opening Relief valve discharges micro- gases at high pressure, the problem of causing gas in outside air tank switching pollution tank.

On one side, the utility model proposes a kind of basin tank deck breather valve, including：

Cavity is breathed, it is connected by pipeline with the chamber of basin, so that basin chamber indoor gas passes in and out；

Pressure relief valve body, is arranged on the breathing cavity top and coupled logical, and the pressure relief valve body includes pressure release chamber, It is arranged on the elastomeric pad of the pressure release chamber upper end connector and the First piston bar through the elastomeric pad；Let out described When pressure chamber room pressure is less than the second air pressure threshold value, elastic packing is formed between elastomeric pad and First piston bar；Exhaled described When air pressure is higher than the first air pressure threshold value in suction cavity, gases at high pressure enter in the pressure-releasing chamber room, in the pressure-releasing chamber Indoor Air When pressure is higher than the second air pressure threshold value, the indoor gases at high pressure of pressure-releasing chamber are broken through elastic close between elastomeric pad and First piston bar Seal and discharge outside pressure-releasing chamber room.

Further, in above-mentioned basin tank deck breather valve, hard disk is provided with the elastomeric pad, it is described to strengthen The intensity of elastomeric pad, prevents its deformation.

Further, in above-mentioned basin tank deck breather valve, it is provided with the elastomeric pad and wears the First piston bar The first through hole, the First piston bar lower end is placed in the pressure release chamber interior, and upper end is placed in the pressure release exterior thereto.

Further, in above-mentioned basin tank deck breather valve, it is provided with the hard disk with running through on the elastomeric pad The corresponding perforation in hole.

Further, in above-mentioned basin tank deck breather valve, the First piston bar lower end is provided with the first spool, and described One spool can close the connector of the pressure release chamber lower end.

Further, in above-mentioned basin tank deck breather valve, extra-high discharge is provided with the pressure release chamber sidewall Mouthful.

Further, in above-mentioned basin tank deck breather valve, further include：For setting the counterweight valve body of the first air pressure threshold value, The counterweight valve body includes the clump weight for adjusting counterweight valve weight, loads the cylinder body of the clump weight, is arranged on the cylinder body Cylinder body lid at upper end opening, and the second piston bar being connected with the clump weight, the second piston bar and described the One piston rod is connected.

Further, in above-mentioned basin tank deck breather valve, set between the counterweight valve body and the pressure relief valve body removable The open type joint structure connecting valve unloaded, the open type joint structure connecting valve include what is be connected with pressure release chamber upper end connector First connection cover, the second connection cover being connected with counterweight valve body and is arranged on first connection cover and described second and is connected Connecting plate between lid.

Further, in above-mentioned basin tank deck breather valve, at the center of first connection cover and second connection cover It is correspondingly arranged to wear the through hole of the First piston bar and second piston bar.

Further, in above-mentioned basin tank deck breather valve, hole peripheral is provided with exhaust in first connection cover Hole, the elastic packing broken through between the elastomeric pad and the First piston bar is discharged the high pressure outside pressure-releasing chamber room Gas is discharged into the atmosphere.

Compared with prior art, the beneficial effects of the utility model are, the basin tank deck breather valve of the utility model is set Pressure relief valve body is put, the elastomeric pad and piston for changing marriage relation with the atmospheric pressure value in pressure relief valve body are set in pressure relief valve body Bar, it is close to form elasticity when the pressure-releasing chamber room pressure is less than the second air pressure threshold value, between elastomeric pad and First piston bar Envelope；When the pressure-releasing chamber room pressure is higher than the second air pressure threshold value, between being produced enough between elastomeric pad and First piston bar Gap, the indoor gases at high pressure of pressure-releasing chamber break through the elastic packing between elastomeric pad and First piston bar and discharge pressure release chamber Outside.Exported compared to the gases at high pressure by being arranged on pressure relief valve body side wall, on the one hand the utility model can prevent high pressure Gases at high pressure outlet pressure release is opened under state and causes ambient atmosphere to be poured in down a chimney, pollutes the material in basin, no matter gases at high pressure go out Mouth is in normally open or is higher than the state opened under certain condition in air pressure, unavoidably pollutes tank body material, influences to store Material purity in tank, and the utility model, by setting the elastomeric pad and piston rod that marriage relation changes with air pressure, realization is let out The indoor gas unidirectional discharge of chamber is pressed, definitely avoids the reverse inflow of outside air；On the other hand, by avoiding in pressure relief valve body Lateral wall sets gases at high pressure to export or reduce gases at high pressure outlet frequency of use, avoids causing valve body structure rigid damage It is bad；Meanwhile when air pressure is micro- high in basin, realizes atmospheric pressure value in automatic adjustment storage filling, reach equilibrium state, avoid to height The break-make of pressure gas vent is operated, and has been saved labor intensity to a certain extent, has been improved work efficiency.

Further, hard disk is provided with the elastomeric pad of the utility model, to strengthen the strong of the elastomeric pad Spend, prevent it from being deformed under the impact of gases at high pressure；Especially, the hard disk of the utility model is integrally covered in the one of elastomeric pad Side, uniformly bears impact of the gases at high pressure to whole elastomeric pad.

Further, the basin tank deck breather valve of the utility model sets pressure relief valve body in breathing chamber upper end, in lower end Pressurising valve body is set, different degrees of air pressure is adjusted from the both sides up and down of breathing chamber respectively, facilitates controllable.

Further, the basin tank deck breather valve of the utility model sets open type valve body connection knot on pressure relief valve body top Structure, makes to communicate with air on the inside of bindiny mechanism, hole peripheral is provided with exhausting-gas hole in the first connection cover, in pressure-releasing chamber room Gases at high pressure when breaking through the elastic packing between the elastomeric pad and the First piston bar, can be with ambient atmosphere phase Together；Meanwhile by limiting mechanism of pressure, pressure relief valve body, the split of open type joint structure connecting valve connect, each mechanism respectively by casting and Machining is i.e. plastic, compared to the casting of monoblock type, saves activity time, also, each mechanism can dismount replacement, convenient Each mechanism is overhauled.

Further, the basin tank deck breather valve of the utility model sets limiting mechanism of pressure, by mechanical realization to relief valve The spool of body applies active force, and then sets the first air pressure threshold value that spool opens or closes, compared to gas control or automatically controlled mode, Air pressure threshold value setting is more preferably stablized.

Brief description of the drawings

By reading the detailed description of hereafter preferred embodiment, it is various other the advantages of and benefit it is common for this area Technical staff will be clear understanding.Attached drawing is only used for showing the purpose of preferred embodiment, and is not considered as to this practicality New limitation.And in whole attached drawing, identical component is denoted by the same reference numerals.In the accompanying drawings：

Fig. 1 is the overall structure diagram of basin tank deck breather valve embodiment provided by the utility model；

Fig. 2A is the structure diagram of the Composition spacer of the utility model basin tank deck breather valve embodiment one；

Fig. 2 B are the structure diagram of the Composition spacer of the utility model basin tank deck breather valve embodiment two；

Fig. 2 C are the structure diagram of the Composition spacer of the utility model basin tank deck breather valve embodiment three；

Fig. 3 is the open type joint structure connecting valve schematic diagram of the utility model basin tank deck breather valve embodiment；

Fig. 4 is the embedded connecting structure schematic diagram of the utility model basin tank deck breather valve embodiment.

Embodiment

The preferred embodiment of the utility model described with reference to the accompanying drawings.It should be understood by those skilled in the art that It is that these embodiments are used only for explaining the technical principle of the utility model, it is not intended that limit the protection of the utility model Scope.

It should be noted that in the description of the utility model, term " on ", " under ", "left", "right", " interior ", " outer " etc. The direction of instruction or the term of position relationship are to be based on direction shown in the drawings or position relationship, this, which is intended merely to facilitate, retouches State, rather than instruction or imply that described device or element there must be specific orientation, with specific azimuth configuration and operation, because This is it is not intended that limitation to the utility model.

In addition it is also necessary to explanation, in the description of the utility model, unless otherwise clearly defined and limited, art Language " installation ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or It is integrally connected；Can mechanically connect or be electrically connected；It can be directly connected, can also be by between intermediary Connect connected, can be the connection inside two elements.To those skilled in the art, can understand as the case may be above-mentioned Concrete meaning of the term in the utility model.

As shown in fig.1, it is the overall structure diagram of the utility model basin tank deck breather valve embodiment, basin tank Top breather valve includes：Cavity 1, pressure relief valve body 2, pressurising valve body 3 and limiting mechanism of pressure 4 are breathed, wherein, cavity 1 is breathed, it passes through pipe Road is connected with the chamber of basin, so that basin chamber indoor gas passes in and out；Pressure relief valve body 2 is arranged on 1 top of the breathing cavity And communicate therewith, being entered with will pass through the indoor gases at high pressure of basin chamber in pressure relief valve body 2, completing pressure release；Pressurising valve body 3 is set In the lower part of breathing cavity 1, to when ambient pressure is higher than the indoor gas of basin chamber, air enter the breathing cavity 1, And in basin chamber；Limiting mechanism of pressure 4 is arranged on the upside of pressure relief valve body 2, changes the breathing cavity by the limiting mechanism of pressure 4 Air pressure in 1, to reach default air pressure threshold value, and then changes breathing cavity 1 and the indoor air pressure of basin chamber.This reality The basin tank deck breather valve of example is applied, it is by being arranged on tank top, for maintaining the air pressure in basin in model set in advance In enclosing, when air pressure is higher than the scope in basin, pressure relief valve body exhaust decompression；When air pressure is less than the scope, charge valve air inlet Ftercompction.

Specifically, the monnolithic case for breathing cavity 1 is cylindrical structural, is provided with 11 He of pure air entrance on it Clean air outlet 12, wherein clean air outlet 12 are connected by pipeline with basin, and pure air is from pure air entrance 11 enter in breathing cavity 1, then are entered by clean air outlet 12 in basin, so that basin obtains pure air Positive pressure protection, prevents extraneous non-clean gas and microorganism from entering wherein.

Specifically, pressure relief valve body 2 includes pressure release chamber 21, and 21 upper and lower side of pressure release chamber is open, wherein, in pressure-releasing chamber 21 upper end of room is provided with Composition spacer, it includes elastomeric pad 22, and elastomeric pad 22 closes 21 upper end of the pressure release chamber connection Mouthful, the First piston bar through elastomeric pad 22 is also set up on elastomeric pad 22, in the pressure release chamber 21 air pressure be less than During the second air pressure threshold value, elastic packing is formed between elastomeric pad 22 and First piston bar 23；The air pressure in the breathing cavity 1 During higher than the first air pressure threshold value, gases at high pressure enter the pressure release chamber 21 in, in pressure release chamber 21 air pressure be higher than the second gas When pressing threshold value, the gases at high pressure in pressure release chamber 21 are broken through the elastic packing between elastomeric pad 22 and First piston bar 23 and are arranged Go out outside pressure release chamber 21.

Refering to shown in Fig. 2A -2C, it is the Composition spacer of the utility model basin tank deck breather valve embodiment one, two, three Structure diagram, hard disk 221 is provided with elastomeric pad 22 in the present embodiment, to strengthen the strong of the elastomeric pad 22 Spend, prevent it from being deformed under the impact of gases at high pressure, especially, in the present embodiment, gases at high pressure pass through elastomeric pad 22 and first Gap discharge between piston rod 23, under gases at high pressure impact, elastomeric pad 22 is easily deformed, produces bending, passes through setting Hard disk 221, resistance is produced when gases at high pressure are impacted with gases at high pressure, is protected elastomeric pad 22, is prevented its deformation.Meanwhile Hard disk 221 is provided with elastomeric pad 22, when air pressure is less than the second air pressure threshold value in the pressure release chamber 21, elastomeric pad 22 can block the upper end of pressure release chamber 21, isolation relief valve 2 and extraneous air.

With reference to shown in Fig. 2A -2C, it is the various structures schematic diagram of the gasket of the utility model embodiment, due to cushion Piece 22 is arranged on 21 upper end of pressure release chamber, and when gases at high pressure impact, the whole side of elastomeric pad 22 can be impacted, because This, in Fig. 2 B, 2C, the side of elastomeric pad 22 is distributed some hard disks 221, and hard disk 221 is uniformly or arbitrary arrangement is in bullet Property gasket 22, hard disk 221 can be in strip or the discoid side for being arranged on elastomeric pad 22, be by extruding or being bonded One.It will be appreciated by persons skilled in the art that hard disk 221 is fixed as with elastomeric pad 22 by way of arbitrarily consolidating One, hard disk 221 are made of metal material or rigid composite material.As optimal embodiment, in Fig. 2A, hard The overall one side for being covered in elastomeric pad 22 of disk 22, uniformly bears impact of the gases at high pressure to whole elastomeric pad.

With continued reference to shown in Fig. 2A, being provided with the first through hole for wearing the First piston bar 23 on elastomeric pad 22 222,23 lower end of First piston bar is placed in inside the pressure release chamber 21, and upper end is placed in outside the pressure release chamber 21.Make For optimal embodiment, perforation corresponding with through hole on the elastomeric pad 22, first piston are provided with hard disk 221 Bar 23 sequentially passes through elastomeric pad 22 and hard disk 221.

With continued reference to shown in Fig. 1,23 lower end of First piston bar is in pressure release chamber 21, is provided with the first spool 24；Under normal pressure, the first spool 24 is blocked in 21 lower end connector of pressure release chamber, can close 21 lower end of pressure release chamber Connector.Since breathing cavity 1 and basin are in connected state, under normal conditions, atmospheric pressure value and breathing cavity 1 in tank body Interior atmospheric pressure value is identical.When air pressure is higher than the first air pressure threshold value in tank, under the driving of gases at high pressure in pressure release chamber 21 First spool 24 and 21 lower end connector of pressure release chamber depart from, so that gas enters in pressure release chamber 21, in the pressure-releasing chamber When air pressure is higher than the second air pressure threshold value in room 21, by being arranged on the elastomeric pad 22 of 21 upper end of pressure release chamber and being threaded through elasticity The gap between First piston bar 23 on gasket 22 is automatically drained out to the external world.Gases at high pressure pass through this automatic continuous exhaust Mode escapes, its speed is relatively slower, stablizes, and can prevent outside air from entering, ensure that clean in basin and respiratory cavity body Net health.As the air pressure in pressure release chamber 21 gradually reduces, in the pressure release chamber 21 air pressure be less than the second air pressure threshold value When, the gap between elastomeric pad 22 and the First piston bar 23 being threaded through on elastomeric pad 22 is not then exhausted from gas, Liang Zhechong It is new to form elasticity, prevent outside air from entering in pressure release chamber 21；The process only allows gas from letting out equivalent to check valve is formed Air is discharged into pressure chamber 21.With the effusion of gases at high pressure, after atmospheric pressure value is less than the first air pressure threshold value in basin, the first valve Core 24 moves downward, and the connector of itself and 21 lower end of pressure release chamber recovers bonding state, so as to close 21 lower end of pressure release chamber Connector, gas cannot then be escaped by pressure relief valve body 2 again.Meanwhile it is higher than the second air pressure threshold value when atmospheric pressure value is abnormal in basin When, the super-pressure exhaust outlet 211 that can be arranged on by opening on 21 side wall of pressure release chamber carries out pressure release；Certainly, if pressure-releasing chamber Air pressure in room 21 can change in controllable scope, can also be not provided with super-pressure exhaust outlet 211.

With continued reference to Fig. 1, extra-high outlet 211, extra-high row are provided with 21 side wall of pressure release chamber The closing cap of adaptation is provided with outlet 211, it is generally the case that extra-high outlet 211 is in closed state.In high pressure When the pressure anomaly of gas is high, gases at high pressure are removed is discharged by the gap between the elastomeric pad 22 and First piston bar 23 Outside, also discharged by extra-high outlet 211；Alternatively, when the pressure in tank body raises suddenly, gases at high pressure pass through super Gases at high pressure outlet 211 is discharged.The port of export of extra-high outlet 211 can set electrically-controlled valve or other valve bodies, lead to Cross and gas pressure threshold value is set to valve body, discharge gas, or be directly open and install to extra-high outlet 211, discharge Gas.

With continued reference to Fig. 1, limiting mechanism of pressure is arranged on the upside of pressure relief valve body, for setting above-mentioned first air pressure threshold value, is passed through The limiting mechanism of pressure changes the air pressure in the breathing cavity 1, includes as wherein a preferred embodiment, limiting mechanism of pressure：Connection The counterweight valve body 4 with preset weight in 2 upper end of pressure relief valve body, counterweight valve body 4 include adjusting the counterweight of counterweight valve weight Block 41, loads the cylinder body 42 of clump weight, the cylinder body lid 43 being arranged at cylinder body upper end opening, and be connected with clump weight 41 Second piston bar 26, second piston bar 26 are connected with 24 upper end of First piston bar.Therefore, the gravity of counterweight valve body 4 can lead to Cross second piston bar 26 and First piston bar 23 is acted on the first spool 24, by adjusting the gravity size of counterweight valve body 4, come The size of the first air pressure threshold value is controlled, so as to achieve the purpose that accurately to adjust pneumatic floating scope in basin.

Specifically, clump weight 41 is multiple entity circular ring structures of different-thickness, and annulus endoporus can be inserted in second piston Bar 26, when installation, can select the ring body of its respective thickness to adjust valve body downlink gravity as needed；Cylinder body 42 is cylindrical structure, The upper end is provided with opening, and bottom is connected by open type joint structure connecting valve 5 with the top of pressure relief valve body 2；Cylinder body lid 43 For circular ring shape, equipped with the star-like sealing ring with 26 top seal of second piston bar, main function is for clump weight 41 and the at middle part Two piston rods 26 are positioned, and it is not produced inclination when moving up and down, are preferably provided with exhausting-gas hole on cylinder body lid 43, so that Clump weight 41 and second piston bar 26 is set not to produce air-resistance phenomenon in reciprocatory movement.

It will be appreciated by persons skilled in the art that as limiting mechanism of pressure preferred embodiment, elastic parts can be used Instead of clump weight, such as the upper end closed of spring, counterweight valve body is set to be connected with spring in counterweight valve body 4, lower end sets closure Baffle, second piston bar 26 is connected with the baffle of lower end, and the elastic force of spring passes through second piston bar 26 and First piston bar 23 act on the first spool 24, by adjusting the amount of force of spring, to control the size of the first air pressure threshold value, so as to reach To the accurate purpose for adjusting pneumatic floating scope in basin.Certainly, those skilled in the art can also replace with spring controllable Pneumatic cylinder or hydraulic cylinder etc. are capable of providing the element of default active force.

With continued reference to Fig. 1, pressurising valve body 3 includes pressurising chamber 31 and can be combined or departed from the pressurising chamber 31 Second spool 25, second spool 25 is when breathing 1 air pressure inside of cavity is less than three air pressure threshold value set in advance Open, outside air is entered breathing 1 equilibrium air pressure of cavity.Specifically, pressurising valve body 3 includes being connected to breathing cavity The pressurising chamber 31 of 1 lower end and the second spool 25 being connected by connecting shaft 251 with the engraved structure of 31 lower end of pressurising chamber, Second spool 25 can be combined or departed from pressurising chamber 31.When the air pressure in storage filling is less than three air pressure threshold values, the second valve Core 25 departs from pressurising chamber 31, and the outside air by filtering is entered in breathing cavity 1 by pressurising chamber 31, and then is supplemented Air pressure in basin, when the air pressure in basin recovers to more than the 3rd air pressure threshold value, the second spool 25 and pressurising chamber 31 are extensive Multiple junction conjunction state, outside air cannot be then entered in tank body by pressurising valve body 3 again.In the present embodiment, pass through pressurising valve body 3rd, the effect of pressure relief valve body 2, maintains the pressure in breathing cavity 1 and tank body in default scope.

Removably it is open with continued reference to being set shown in Fig. 1 and Fig. 3, between the limiting mechanism of pressure and the pressure relief valve body 2 Formula joint structure connecting valve 5, the open type joint structure connecting valve 5 are discharged the pressure relief valve body 2 by the opening on its side wall Gases at high pressure discharge into the atmosphere.Specifically, open type joint structure connecting valve 5 is connected including the first connection cover 51, second Lid 52 and connecting plate 53.Wherein, the first connection cover 51 is connected with 21 upper end of pressure release chamber, and the second connection cover 52 passes through insertion Formula bindiny mechanism 6 is connected with 412 lower end of cylinder body of counterweight valve body 41, and connecting plate 53 is arranged on the first connection cover 51 and second and connects Between connecing lid 52, and opening is formed between the first connection cover 51 and the second connection cover 52, to play fixed and supporting function, its Quantity is indefinite, and certainly, the shape of connecting plate 53 is not limited, and in the present embodiment, it is some arc panels, each arc panel it Between interval is set, by setting spaced some arc panels, also, also can conveniently grip, so that breather valve can be square Just install and carry.

With continued reference to Fig. 3, centrally disposed perforative first connecting hole 511 of the first connection cover 51, the second connection cover 52 Setting and 51 corresponding second connecting hole 521 of the first connecting hole at center, to wear First piston bar 23 and second piston bar 26, and prevent it from deviateing during the motion.Meanwhile 511 periphery of the first connecting hole in first connection cover 51 is set Exhausting-gas hole is equipped with, exhausting-gas hole is also provided with the first connection cover 51 and is lived the elastomeric pad 22 will be broken through with described first Elastic packing between stopper rod 23 and the gases at high pressure discharged outside pressure release chamber 21 are discharged into the atmosphere.In addition, open type valve body Preformed hole 531 is additionally provided with connection structure 5, for being worn during installation or removal used in instrument.The utility model embodiment passes through Split type, removable limiting mechanism of pressure, pressure relief valve body 2, open type joint structure connecting valve 5, convenient manufacture, each mechanism point are set It is i.e. not plastic by casting and machining, compared to the casting of monoblock type, save activity time；Also, each mechanism can be with Dismounting is replaced, convenient that each mechanism is overhauled, especially, can be to the elastomeric pad in pressure relief valve body 2, and limiting mechanism of pressure Interior counterweight valve body or spring assembly are replaced, to adapt to different application environments；Meanwhile by setting spaced company Fishplate bar, makes to communicate with air on the inside of bindiny mechanism, 511 periphery of through hole in the first connection cover is provided with exhausting-gas hole, in pressure release , can be big with the external world when the indoor gases at high pressure of chamber break through the elastic packing between the elastomeric pad and the First piston bar Gas phase is same.

As shown in fig.4, the second connection cover 52 of open type joint structure connecting valve 5 passes through embedded bindiny mechanism 6 and institute 412 lower end of cylinder body is stated to be connected, embedded bindiny mechanism 6 includes the first groove 54, the second groove 55 and locating part 56, wherein, First groove 54 is arranged on 52 side-wall outer side of the second connection cover, the second groove 55 is arranged on 412 lower end inner wall of cylinder body, with First groove 54 corresponds to, and locating part 56 is fastened in the first groove 54 and the second groove 55 at the same time, to limit counterweight valve Body 41 and the movement of open type joint structure connecting valve 5 in the axial direction.

Specifically, locating part 56 its can select wire, preferably one end carries the wire of hook；Meanwhile second The entrance hole 551 of 412 side wall of cylinder body is provided through in groove 55, to import or export described first by the locating part 56 54 and second groove 55 of groove.When mounted, the second connection cover 52 is made to be combined with cylinder body 412, the first groove 54 and the second groove 55 alignment, by one end of locating part 56 by entrance hole 551, and are fixed on the first groove 54, by rotating round about Cylinder body 412 and opening bindiny mechanism 5, make the free end of the locating part 56 slowly enter the first groove 54 and the second groove 55, And make locating part 56 while be fastened in the first groove 54 and the second groove 55, realize locking；In dismounting, revolve round about Turn cylinder body 412 and opening bindiny mechanism 5, expose the free end of locating part 56, and clamp free end, continuation is revolved round about Turn cylinder body 412 and opening bindiny mechanism 5, make locating part 56 slowly the first groove 54 of export and the second groove 55, until locating part 56 completely disengage the first groove 54 and the second groove 55, the second connection cover 52 is departed from cylinder body 412.

As preferred embodiment, in order to which locating part 56 is fixed on the first groove 54 in installation and dismounting, Location hole 541, wire of the locating part selection with crotch, by 56 hook end of locating part by leading are provided with first groove 54 Enter hole 551 fixed to fixation is realized in location hole 541, by rotary cylinder-block 412 round about and opening bindiny mechanism 5, make Into and out first groove, 54 and second groove 55 in free one end of the locating part 56, has reached installation and removal purpose.

Liang Ge mechanisms are installed compared to clamping hoop type bindiny mechanism by the embedded bindiny mechanism 6 of the utility model, have more The stability added, clamping hoop type bindiny mechanism pass through screw-driving, reality by setting annular fixing member in the outside of Liang Ge mechanisms Now fix, by the locking of bolt structure and the shear strength for coating shoulder side wall of annular fixing member；And the utility model leads to Cross on the inner side for two mechanisms being combined and lateral surface and groove is set, and between being fastened on two mechanisms by locating part, pass through Radial pressure between locating part and recess sidewall is contended with the axial tensions of two mechanisms, than having stronger work using clamp mechanism Use effect；Meanwhile compared to the structure of welding manner post-failure behaviors, the utility model mounting means can be dismantled, conveniently to machine Structure in structure is operated and replaced, and installation and dismounting can be achieved in the rotation that only need to two mechanisms be carried out with opposite direction；And And the connection mode is arranged on the inside of two mechanisms, mechanism exterior space is not take up, the operation convenience with bigger；Pass through Entrance hole is set to facilitate locating part to pass in and out groove, it is easy for installation laborsaving.

With continued reference to Fig. 1, in basin tank deck breather valve provided in this embodiment, filter mechanism 7 is further included, is arranged on pressurising The lower end of valve body 3, its filter screen 71 for mainly including being used to filter natural air shield with filter screen outside is arranged on Shell 72.A plurality of long pore structure is wherein offered on shell 72 side by side, filter screen 71 is arranged on shell 72 in a manner of liner It is internal.

With continued reference to Fig. 1, the present embodiment provides in basin tank deck breather valve, wiper mechanism 8 is further included, it includes being arranged on Breathe 1 outer wall of cavity on cleaning solution import 81, be arranged on breathing 1 inner wall of cavity on, with 81 corresponding cleaning of cleaning solution import Spray ball 82, and the cleaning solution recovery approach on the inside of shell.

In conclusion the basin tank deck breather valve of the utility model sets pressure relief valve body, set in pressure relief valve body with pressure release Atmospheric pressure value in valve body and change the elastomeric pad and piston rod of marriage relation, be less than the second gas in the pressure-releasing chamber room pressure When pressing threshold value, elastic packing is formed between elastomeric pad and First piston bar；It is higher than the second gas in the pressure-releasing chamber room pressure When pressing threshold value, enough gaps are produced between elastomeric pad and First piston bar, the indoor gases at high pressure of pressure-releasing chamber break through cushion Elastic packing between piece and First piston bar and discharge outside pressure-releasing chamber room.Compared to by being arranged on pressure relief valve body side wall Gases at high pressure export, on the one hand the utility model can prevent from opening gases at high pressure outlet pressure release under high pressure conditions and causing the external world Air pours in down a chimney, and pollutes the material in basin, no matter gases at high pressure outlet is higher than under certain condition in normally open or in air pressure The state of opening, unavoidably pollutes tank body material, influences material purity in basin, and the utility model passes through setting and combines The elastomeric pad and piston rod that relation changes with air pressure, realize the indoor gas unidirectional discharge of pressure-releasing chamber, definitely avoid extraneous sky The reverse inflow of gas；On the other hand, by avoiding setting gases at high pressure to export or reduce high pressure gas in pressure relief valve body lateral wall Body exports frequency of use, avoids causing valve body structure rigid damage；Meanwhile when air pressure is micro- high in basin, realize automatic adjust Atmospheric pressure value in section storage filling, reaches equilibrium state, avoids operating the break-make of gases at high pressure outlet, to a certain extent Labor intensity has been saved, has been improved work efficiency.

So far, have been combined preferred embodiment shown in the drawings and describe the technical solution of the utility model, still, this Field technology personnel are it is easily understood that the scope of protection of the utility model is expressly not limited to these embodiments. Without departing from the utility model principle on the premise of, those skilled in the art can make correlation technique feature equivalent change Or replace, the technical solution after these are changed or replace it is fallen within the scope of protection of the utility model.

Claims (10)

1. A kind of 1. basin tank deck breather valve, it is characterised in that including：

   Breathe cavity（1）, it is connected by pipeline with the chamber of basin, so that basin chamber indoor gas passes in and out；

   Pressure relief valve body（2）, it is arranged on the breathing cavity（1）Top is simultaneously coupled to be led to, the pressure relief valve body（2）Including pressure release Chamber（21）, it is arranged on the pressure release chamber（21）The elastomeric pad of upper end connector（22）With through the elastomeric pad（22） First piston bar（23）；In the pressure release chamber（21）When interior air pressure is less than the second air pressure threshold value, elastomeric pad（22）With One piston rod（23）Between form elastic packing；In the breathing cavity（1）When interior air pressure is higher than the first air pressure threshold value, high pressure gas Body enters the pressure release chamber（21）It is interior, in the pressure release chamber（21）When interior air pressure is higher than the second air pressure threshold value, pressure release chamber （21）Interior gases at high pressure break through elastomeric pad（22）With First piston bar（23）Between elastic packing and discharge pressure release chamber （21）Outside.
2. 2. basin tank deck breather valve according to claim 1, it is characterised in that the elastomeric pad（22）On be provided with it is hard Matter disk（221）, to strengthen the elastomeric pad（22）Intensity, prevent its deformation.
3. 3. basin tank deck breather valve according to claim 2, it is characterised in that the elastomeric pad（22）On be provided with and wear If the First piston bar（23）The first through hole, the First piston bar（23）Lower end is placed in the pressure release chamber（21）It is interior Portion, upper end are placed in the pressure release chamber（21）It is exterior.
4. 4. basin tank deck breather valve according to claim 3, it is characterised in that the hard disk（221）On be provided with The elastomeric pad（22）The corresponding perforation of upper through hole.
5. 5. basin tank deck breather valve according to claim 4, it is characterised in that the First piston bar（23）Lower end is set There is the first spool（24）, first spool（24）The pressure release chamber can be closed（21）The connector of lower end.
6. 6. the basin tank deck breather valve according to claim 1-5 any one, it is characterised in that the pressure release chamber（21） The extra-high outlet with closing cap is provided with side wall（211）.
7. 7. the basin tank deck breather valve according to claim 1-5 any one, it is characterised in that further include：For setting The counterweight valve body of first air pressure threshold value（4）, the counterweight valve body（4）Clump weight including adjusting counterweight valve weight（41）, dress Carry the cylinder body of the clump weight（42）, it is arranged on the cylinder body（42）Cylinder body lid at upper end opening（43）, and match somebody with somebody with described Pouring weight（41）The second piston bar being connected（26）, the second piston bar（26）With the First piston bar（23）It is connected.
8. 8. basin tank deck breather valve according to claim 7, it is characterised in that the counterweight valve body（4）With the pressure release Valve body（2）Between dismountable open type joint structure connecting valve is set（5）, the open type joint structure connecting valve（5）Including with Pressure release chamber（21）The first connection cover that upper end connector is connected（51）, the second connection cover for being connected with counterweight valve body（52） And it is arranged on first connection cover（51）With second connection cover（52）Between connecting plate（53）.
9. 9. basin tank deck breather valve according to claim 8, it is characterised in that first connection cover（51）With described Two connection covers（52）Center at be correspondingly arranged to wear the First piston bar（23）And second piston bar（26）Run through Hole（511,521）.
10. 10. basin tank deck breather valve according to claim 9, it is characterised in that first connection cover（51）On pass through Perforation（511）Periphery is provided with exhausting-gas hole, will break through the elastomeric pad（22）With the First piston bar（23）Between Elastic packing and discharge pressure release chamber（21）Outer gases at high pressure are discharged into the atmosphere.