CN109027368A - A kind of on-off control valve for tail gas clean-up in vehicle gas circuit - Google Patents

Abstract

The invention discloses a kind of on-off control valves for tail gas clean-up in vehicle gas circuit, including valve body, the valve outer surface offers sliding slot, roller is installed at the top of the sliding slot inner wall, fixed block is installed on the outside of the roller, hang plate is installed on the outside of the fixed block, structure of the invention is scientific and reasonable, it is safe and convenient to use, mobile bar moves inside fixed block, mobile bar supports valve body, valve body is set to be in equilibrium state at runtime, pass through telescopic rod and limited mouth, adjustable movable bar length, and then make valve body in Different Plane operation, it is able to maintain the operation of horizontality, it is uniformly gathered by obstructing iron plate in the gentle pressure housing junction of valve body, by group every iron plate and gasket double protection, prevent gas from flowing out to the external world from the gentle pressure housing junction of valve body, and then guarantee the gas inside gas path on-off control valve Body pressure is stablized, and the mist of oil inside gas path on-off control valve is further prevented to pollute external environment.

Description

A kind of on-off control valve for tail gas clean-up in vehicle gas circuit

Technical field

The present invention relates to on-off control valve technical field, specially a kind of on-off control for tail gas clean-up in vehicle gas circuit Valve processed.

Background technique

Gas path on-off control valve is made of air pressure shell and valve body two parts, and air pressure shell is the pushing meanss of regulating valve, The size of its pressing force generates corresponding thrust, and valve rod is made to generate opposite movement, so that the spool of regulating valve is driven to act, valve Body component is the adjusting part of regulating valve, it is directly and media contact by the movement of spool changes the orifice size of regulating valve, Achieve the purpose that adjusting, the working media of pneumatic system is air, the unlubricated property of air, therefore gas path on-off control valve needs oil Mist lubrication, current fog lubrication is all that valve inner is injected to by oil pipe, and the gentle pressure housing junction leakproofness of oil pipe is not Be it is especially high, have mist of oil often from the gentle pressure housing junction of oil pipe and be sprayed onto the external world, air pressure shell is caused to be difficult to clean Phenomenon, oil pipe are placed on air pressure hull outside and are not fixed, and due to the shaking of valve body, will lead to oil pipe shaking often, lead to oil pipe It is fallen from air pressure housing junction, causes not lubricate inside gas path on-off control valve, internal element is caused to use because of long-time The phenomenon that generating excessive wear, air pressure shell and valve body junction are typically all to pass through gasket seal, after long-time use, pad Sector-meeting leads to air pressure shell and the gas leakage of valve body junction because of the corrosion of mist of oil, causes system pressure decline and the dirt to environment Dye when being mounted on different plane operations due to gas path on-off control valve, will lead to the inclination of gas path on-off control valve, therefore valve body Bottom also needs to use supporter, and valve body is supported and is balanced.

Summary of the invention

The present invention provides a kind of technical solution, can effectively solve to propose current fog lubrication in above-mentioned background technique all That valve inner is injected to by oil pipe, the gentle pressure housing junction leakproofness of oil pipe be not it is especially high, have often mist of oil from The phenomenon that gentle pressure housing junction of oil pipe is sprayed onto the external world, air pressure shell is caused to be difficult to clean, oil pipe is placed on air pressure shell Outside is not fixed, and due to the shaking of valve body, be will lead to oil pipe shaking often, is caused oil pipe to fall from air pressure housing junction, make At not lubricating inside gas path on-off control valve, internal element is caused to use the phenomenon that generating excessive wear, air pressure because of long-time Shell and valve body junction are typically all to pass through gasket seal, and after long-time use, gasket can cause because of the corrosion of mist of oil Air pressure shell and the gas leakage of valve body junction cause system pressure decline and the pollution to environment, since gas path on-off control valve is pacified When mounted in different plane operations, the inclination of gas path on-off control valve will lead to, therefore body base also needs to use supporter, by valve The problem of body support balance.

To achieve the above object, the invention provides the following technical scheme: it is a kind of in vehicle gas circuit tail gas clean-up it is logical Disconnected control valve, including valve body, the valve outer surface offer sliding slot, are equipped with roller, the rolling at the top of the sliding slot inner wall Fixed block is installed on the outside of column, hang plate is installed on the outside of the fixed block, fixed block two sides edge offers limit Hole, the limit hole middle part are equipped with telescopic rod, and the telescopic rod bottom is equipped with spring, and the spring side is equipped with circle Column, the cylinder side are equipped with mobile bar, and gasket is equipped in the middle part of the top end of the valve body, is equipped with air pressure at the top of the gasket Shell, the body top outside are equipped with barrier iron plate, and the barrier iron plate bottom offers the second folded slot, the barrier The first folded slot is offered at the top of iron plate, the barrier iron plate both ends outer surface offers limited mouth, the limited mouth middle part It is provided with limited post.

Preferably, air pressure case top side is provided with oil pipe, and outside is provided with snap ring in the middle part of the oil pipe, described It is provided in the middle part of air pressure housing tip and agrees with block, the oil pipe top outer is provided with sealing ring, the oil pipe apical lateral peace Equipped with agreeing with plate, the plate inner wall that agrees with is welded with extruding spring, it is described agree with to offer in the middle part of block inner wall agree with slot.

Preferably, the extruding spring outwards are equipped with gauze, and squeeze spring outer surface and be coated with antirust paint.

Preferably, the block that agrees with is connected through a screw thread with sealing ring.

Preferably, the sliding slot inner wall offers attraction grooves.

Preferably, the mobile bar bottom is pasted with improved mat.

Preferably, described agree with is equipped with pull ring on the outside of plate.

Preferably, the snap ring inner wall is covered with sponge.

Preferably, the quantity of the sliding slot is four, and the quantity of the mobile bar is four.

Compared with prior art, beneficial effects of the present invention: structure of the invention is scientific and reasonable, safe and convenient to use:

1, it is provided with barrier iron plate and gasket, is uniformly gathered by obstructing iron plate in the gentle pressure housing junction of valve body, is led to Cross group prevents gas from flowing out to the external world from the gentle pressure housing junction of valve body every the double protection of iron plate and gasket, and then guarantees Gas path on-off control valve internal gas pressure is stablized, and the mist of oil inside gas path on-off control valve is further prevented to make external environment At pollution.

2, it provided with block and sealing ring is agreed with, by the snap ring on the outside of oil pipe, prevents oil pipe from shaking, agree with plate and agrees with Slot facilitates oil pipe to be inserted into prior scheduled position, keeps oil pipe tentatively fixed, agrees with the cooperation of block and sealing ring by screw thread, Oil pipe further progress is fixed, prevents oil pipe from falling from air pressure housing junction, ensure that oil pipe to gas path on-off control valve Effectively lubricating avoids gas path on-off control valve internal component from generating abrasion, improves the service life of gas path on-off control valve.

3, it is provided with mobile bar and fixed block, mobile bar moves inside fixed block, and mobile bar supports valve body, makes valve body It is in equilibrium state at runtime, by telescopic rod and limited mouth, adjustable movable bar length, and then keep valve body flat in difference When face is run, it is able to maintain the operation of horizontality.

Detailed description of the invention

Attached drawing is used to provide further understanding of the present invention, and constitutes part of specification, with reality of the invention It applies example to be used to explain the present invention together, not be construed as limiting the invention.

In the accompanying drawings:

Fig. 1 is structural schematic diagram of the invention；

Fig. 2 is cross-sectional view of the invention；

Fig. 3 is that the present invention agrees with plate and agrees with the attachment structure schematic diagram of slot；

Fig. 4 is the structural schematic diagram of present invention barrier iron plate；

Fig. 5 is the structural schematic diagram of fixed block of the present invention；

Figure label: 1, valve body；2, sliding slot；3, roller；4, fixed block；5, hang plate；6, limit hole；7, telescopic rod；8, Mobile bar；9, cylinder；10, spring；11, iron plate is obstructed；12, air pressure shell；13, gasket；14, limited post；15, limited mouth；16, Oil pipe；17, snap ring；18, agree with block；19, sealing ring；20, agree with plate；21, spring is squeezed；22, agree with slot；23, it first folds Slot；24, the second folded slot.

Specific embodiment

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings, it should be understood that preferred reality described herein Apply example only for the purpose of illustrating and explaining the present invention and is not intended to limit the present invention.

Embodiment: as shown in Figs. 1-5, the present invention provides a kind of technical solution, and one kind is for tail gas clean-up in vehicle gas circuit On-off control valve, including valve body 1,1 outer surface of valve body offer sliding slot 2, and the dust of bottom enters in sliding slot 2 in order to prevent Portion, the phenomenon that causing mobile bar 8 that can not shrink, 2 inner wall of sliding slot offers attraction grooves, in order to facilitate regulation valve body 1, guarantees valve Body 1 is vertical, and the quantity of sliding slot 2 is four, and the quantity of mobile bar 8 is four, is equipped with roller 3, roller 3 at the top of 2 inner wall of sliding slot Outside is equipped with fixed block 4, and hang plate 5 is equipped on the outside of fixed block 4, and 4 two sides edge of fixed block offers limit hole 6, limit Position is equipped with telescopic rod 7 in the middle part of hole 6, and 7 bottom of telescopic rod is equipped with spring 10, and 10 side of spring is equipped with cylinder 9, cylinder 9 one Side is equipped with mobile bar 8, and 1 top middle portion of valve body is equipped with gasket 13, and air pressure shell 12 is equipped at the top of gasket 13, and valve body 1 pushes up Barrier iron plate 11 is installed, barrier 11 bottom of iron plate offers the second folded slot 24, obstructs and offer at the top of iron plate 11 on the outside of portion First folded slot 23, barrier 11 both ends outer surface of iron plate offer limited mouth 15, limited post 14 are provided in the middle part of limited mouth 15.

12 top side of air pressure shell is provided with oil pipe 16, and 16 middle part outside of oil pipe is provided with snap ring 17, blocks in order to prevent Ring 17 scratches oil pipe 16, causes 16 surface abrasion of oil pipe, leads to the phenomenon of the breakage of oil pipe 16, and 17 inner wall of snap ring is covered with sponge, 12 top middle portion of air pressure shell, which is provided with, agrees with block 18, when mobile bar 8 touches plane in order to prevent, because of 8 bottom light of mobile bar It is sliding, it causes valve body 1 to collapse, further results in the damage of 1 outer surface of valve body, 8 bottom of mobile bar is pasted with improved mat, in order to make oil Pipe 16 is more fixed, and prevents oil pipe 16 from falling, and is agreed with block 18 and is connected through a screw thread with sealing ring 19, the setting of 16 top outer of oil pipe There is sealing ring 19,16 apical lateral of oil pipe, which is equipped with, agrees with plate 20, pulls oil pipe 16 for convenience, when preventing maintenance, oil pipe 16 It is difficult to the case where dismantling, agrees with and pull ring is installed on the outside of plate 20, agrees with 20 inner wall of plate and is welded with extruding spring 21, squeeze in order to prevent Pressing spring 21 is water stain because of touching, and causes extruding spring 21 the phenomenon that being broken of getting rusty occur, squeezes and be equipped on the outside of spring 21 Gauze, and squeeze 21 outer surface of spring and be coated with antirust paint, agree with to offer in the middle part of 18 inner wall of block and agrees with slot 22.

The working principle of the invention and process for using: valve body 1 rotates to inclination along roller 3 when in use, by fixed block 4 At plate 5, prevent fixed block 4 from moving all the way up when placing by roller 3, being pressed further by telescopic rod 7 is accommodated into telescopic rod 7 Inside cylinder 9, pull mobile bar 8, so that 8 bottom of mobile bar is touched plane, by multiple mobile bars 8 with corresponding fixed block 4 internal regulation height, and then make valve body 1 in Different Plane operation, it is able to maintain the state of level run, gasket 13 is placed In 1 upper surface of valve body, barrier iron plate 11 is then covered in 1 top outer of valve body, air pressure shell 12 is further placed on valve 1 top of body is attached at 12 bottom outside of air pressure shell by barrier iron plate 11 along 23 bending of the first folded slot, then will barrier Iron plate 11 is attached at 1 outside of valve body and is prevented by gasket 13 and barrier 11 duplicate protection of iron plate along 24 bending of the second folded slot Only gas flows out to the external world from shell 12 and 1 junction of shell, and then guarantees gas path on-off control valve internal gas pressure, will be oily Pipe 16 is pulled from 17 inner wall of snap ring, and snap ring 17 prevents oil pipe 16 from shaking, and the sponge inside snap ring 17 prevents 16 outer surface of oil pipe from scraping Flower, the event for causing oil pipe 16 to be revealed, by 16 one end of oil pipe agree with that plate 20 is inserted into 12 top of air pressure shell agree with slot 22 Inside makes oil pipe 16 reach preset position inside block 18 agreeing with, and keeps oil pipe fixed for the first time, 16 outside of oil pipe it is close Seal ring 19 and agree with block 18 and be connected through a screw thread, further fixes oil pipe 16, prevent oil pipe 16 from 12 junction of air pressure shell It falls, guarantees that gas path on-off control valve can use for a long time.

Finally, it should be noted that being not intended to restrict the invention the foregoing is merely preferred embodiment of the invention, to the greatest extent Present invention has been described in detail with reference to the aforementioned embodiments for pipe, for those skilled in the art, still can be with It modifies the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features.It is all Within the spirit and principles in the present invention, any modification, equivalent replacement, improvement and so on should be included in guarantor of the invention Within the scope of shield.

Claims (1)

1. a kind of on-off control valve for tail gas clean-up in vehicle gas circuit, including valve body (1), it is characterised in that: the valve body (1) outer surface offers sliding slot (2), is equipped with roller (3) at the top of sliding slot (2) inner wall, is equipped on the outside of the roller (3) Fixed block (4), fixed block (4) outside are equipped with hang plate (5), and fixed block (4) two sides edge offers limit Hole (6), limit hole (6) middle part are equipped with telescopic rod (7), and telescopic rod (7) bottom is equipped with spring (10), the bullet Spring (10) side is equipped with cylinder (9), and cylinder (9) side is equipped with mobile bar (8), valve body (1) the top middle portion peace Equipped with gasket (13), it is equipped with air pressure shell (12) at the top of the gasket (13), valve body (1) top outer is equipped with barrier Iron plate (11), barrier iron plate (11) bottom offer the second folded slot (24), offer at the top of the barrier iron plate (11) First folded slot (23), barrier iron plate (11) the both ends outer surface offers limited mouth (15), in the limited mouth (15) Portion is provided with limited post (14), and snap ring (17) inner wall is covered with sponge, and the quantity of the sliding slot (2) is four, the shifting The quantity of lever (8) is four.