CN205470732U

CN205470732U - Adjustable valve of spraying

Info

Publication number: CN205470732U
Application number: CN201620023673.3U
Authority: CN
Inventors: 陈玉洁
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-01-07
Filing date: 2016-01-07
Publication date: 2016-08-17
Anticipated expiration: 2026-01-07

Abstract

The utility model provides an adjustable valve of spraying, including outer valve body, spring, jam pot cover, interior valve body and valve rod, outer valve body both ends opening and inside have the cavity, interior valve body and spring embedding in the cavity of outer valve body, sealed with the one end opening of outer valve body through the jam pot cover, during the tail end of valve rod ran through jam pot cover and interior valve body and stretches into the cavity of outer valve body, the exhaust port that has axial direction was opened to the top face of valve rod, the outer wall of valve rod open have with the communicating cross bore of exhaust port, the quantitative valve chamber of formation between valve rod and the interior valve body, outer valve body is opened there is first regulation hole, and interior valve body is opened has the second regulation hole, adjusts the plug and passes first regulation hole and second regulation hole to stretch into the proportional valve indoor, the sealed cavity of outer valve body is in between spring cavity and the internal valve coelomic chamber, and the diameter of sealed cavity is greater than the diameter of spring cavity, it is equipped with the seal cover still to overlap on the valve rod. The utility model discloses useful technological effect does: simple structure, the spraying volume that can adjust this adjustable valve of spraying according to self usage.

Description

Adjustable spray valve

Technical field

This utility model relates to a kind of adjustable spray valve.

Background technology

Existing a lot of cosmetics, household supplies and industrial goods all use the form of aerosol for, two Unit is packaged as specific packaged forms when aerosol form uses, and so-called two-component packaging is exactly in inhalator jar Increasing a packaging pouch connected with spray valve, the object to be sprayed is contained in this packaging bag, compression Gas is inserted between inhalator jar and pouch as propellant, and in this two-component packaging field, also has one fixed Amount spray valve, is quantitatively ejection every time.

It is fixed that published Chinese patent (Application No. 201420670298.2) discloses a kind of easy-operation type Amount spray valve, including outer valve, inner valve body and the valve rod axially penetrating through inner valve body, described inner valve body and valve Leaving space between bar and form quantitative valve chamber, the middle part of described valve rod is provided with first annular boss, is positioned at institute State the upper valve rod above first annular boss and be provided with radially-arranged cross-drilled hole, be positioned at described first annular convex Lower valve rod below platform is provided with circular cone, and the inwall bottom port of described inner valve body is provided with internal diameter and is less than The sleeve pipe of circular cone top shank diameter；At described depressed stem, and described cross-drilled hole is made to enter proportional valve During room, described circular cone coordinates with described cannula tip inner wall sealing, bottom described inner valve body outer wall with Certain gap is left at the position that described outer valve is connected.But each spray amount of above-mentioned metered dose valve is Fix, it is impossible to adjustable spraying amount as required.

Utility model content

Technical problem to be solved in the utility model is to provide a kind of simple in construction, conveniently use is adjustable Joint formula spray valve.

For solve above-mentioned technical problem, this utility model provides a kind of adjustable spray valve, including outside Valve body, spring, jam pot cover, inner valve body and valve rod；

Outer valve both ends open and inside have cavity, described inner valve body and spring and embed described outer valve In cavity, the one end open of outer valve being sealed by jam pot cover, the tail end of valve rod runs through jam pot cover and inner valve body And stretch in the cavity of outer valve, the face, top of valve rod has the tap of axial direction, the outer wall of valve rod Having the cross-drilled hole communicated with tap, form quantitative valve chamber between valve rod and inner valve body, one end of spring is supported Leaning against in the cavity wall of cavity, the other end of spring is resisted against the afterbody of valve rod；

Outer valve outer wall has the first adjustment hole communicated with cavity, corresponding first adjustment hole of inner valve body outer wall Position has the second adjustment hole communicated with quantitative valve chamber, and regulation stick harness is adjusted through the first adjustment hole and second It is indoor that knothole stretches into proportional valve；

The cavity of outer valve includes placing the spring chamber of spring, places the inner valve body chamber of inner valve body and close Envelope chamber, spring chamber communicates with the other end opening of outer valve, seals chamber and is in spring chamber with interior Between valve chamber, seal the diameter diameter more than spring chamber of chamber；

Being on the valve rod between spring and inner valve body and be also set with sealing shroud, sealing shroud is in sealing chamber In, the external diameter of the sealing shroud diameter more than spring chamber and the diameter less than sealing chamber, seal chamber Length is more than the length of sealing shroud.

After using such structure, can be according to self needs when spraying, by selecting different length Regulation stick harness control and regulation stick harness stretch into quantitative valve chamber number, reach to reduce the mesh of the volume of quantitative valve chamber , and then the size of adjustable spraying amount.

This utility model Advantageous Effects is: simple in construction, can regulate this scalable according to own purposes The spray amount of formula spray valve.

The valve rod outer wall of this adjustable spray valve is extended with first annular boss, and first annular boss is in Position between inner valve body and jam pot cover, is set with the first sealing ring outside valve rod, the first sealing ring is in valve rod Between first annular boss and jam pot cover；

Valve rod outer wall is extended with the second annular boss, the second annular boss be in sealing shroud and valve rod afterbody it Between position.

After using such structure, first annular boss can limit the relative position of the first sealing ring, with Reason, the second annular boss can also limit the relative position of sealing shroud.

It is provided with chamfering between spring chamber and the sealing chamber of the outer valve cavity of this adjustable spray valve； After using such structure, during valve rod moves, sealing shroud and spring chamber with seal chamber it Between be provided with chamfering and progressively contact, the most progressively spacer spring chamber with seal the connection of chamber, and then ensure fixed Pressure in amount valve chamber.

First adjustment hole or second adjustment hole of this adjustable spray valve are screwed hole, in the middle part of regulation stick harness Being extended with outer bulge loop, the outer wall of outer bulge loop is provided with the screw thread coordinated with the first adjustment hole or the second adjustment hole； After using such structure, the position flexible of adjusting plug post can be made, it is simple to use.

The second adjustment hole lower end inner wall of this adjustable spray valve is extended with internal projecting ring, regulates stick harness bottom It is set with the second sealing ring and snap ring；After using such structure, the snap ring on regulation stick harness plays fixing The effect of the second sealing ring, the second sealing ring can ensure that the medium of proportional valve indoor will not be from regulation stick harness Place spills.

Accompanying drawing explanation

Fig. 1 is the structural representation of this adjustable spray valve embodiment.

Fig. 2 is the A portion enlarged drawing of Fig. 1.

Detailed description of the invention

If Fig. 1 is to shown in 2

This adjustable spray valve includes outer valve 1, spring 6, jam pot cover 3, inner valve body 2 and axially penetrates through The valve rod 4 of inner valve body 2.

Outer valve 1 is internal has cavity, and cavity is divided into spring chamber 11, sealing chamber from rear to front 12 and inner valve body chamber (not marking in figure), outer valve 1 front end face and lower surface have and internal cavities phase Logical opening, spring chamber 11 communicates with the lower ending opening of outer valve 1, inner valve body chamber and outer valve 1 Front opening communicate, seal chamber 12 be between spring chamber 11 and inner valve body chamber, annular seal space The diameter of room 12 is more than the diameter of spring chamber 11.

Inner valve body 2 is placed in the inner valve body chamber of cavity, and spring 6 is placed on the spring chamber 11 of cavity In, one end of spring 6 is resisted against in the cavity wall of spring chamber 11, and the other end of spring 6 is resisted against valve rod The afterbody of 4, is sealed the front opening of outer valve 1 by jam pot cover 3.

The rear end of valve rod 4 sequentially passes through jam pot cover 3 and inner valve body 2 and stretches into the spring chamber 11 of outer valve 1 In, leave space between described inner valve body 2 and valve rod 4 and form quantitative valve chamber 21, outside valve rod 4 in Portion is provided with first annular boss 41, is set with the first sealing ring 5 outside valve rod 4, and the first sealing ring 5 is in Between first annular boss 41 and the jam pot cover 3 of valve rod 4, valve rod 4 be in first annular boss 41 with Between valve rod 4 rear end, position is provided with frustum changeover portion 42, and the rear inner wall mouth of inner valve body 2 is provided with internal diameter Less than the sleeve pipe 22 of the anterior diameter of changeover portion 42, and the sleeve pipe 22 of inner valve body 2 can occur necessarily Deformation, coordinate between sleeve pipe 22 with changeover portion 42 outer wall, by the sealing chamber 12 of outer valve 1 with fixed Amount valve chamber 21 opposing spaced apart, but also blow-by, changeover portion 42 has the quantitative valve chamber 21 of connection and sky The groove in chamber, valve rod 4 outer wall is extended with the second annular boss 46, and the second annular boss 46 is in changeover portion 42 rearward position.

Being on the valve rod 4 between spring 6 and inner valve body 2 and be also set with sealing shroud 7, sealing shroud 7 is in Sealing in chamber 12, the external diameter of sealing shroud 7 is more than the diameter of spring chamber 11 and less than sealing chamber 12 Diameter, seal the length of chamber 12 more than the length of sealing shroud 7.

The front end face of valve rod 4 has the tap 44 extending to valve rod 4 rear portion, the middle part of valve rod 4 outer wall Having the cross-drilled hole 45 communicated with tap 44, cross-drilled hole 45 is in the front side of first annular boss 41, initially During state, cross-drilled hole 45 is covered by jam pot cover 3 so that cross-drilled hole 45 and quantitative valve chamber 21 opposing seal.

Outer valve 1 outer wall has the first adjustment hole 13 communicated with cavity 11, inner valve body 2 outer wall correspondence One adjustment hole 13 position has the second adjustment hole 23 communicated with quantitative valve chamber 21, and the second adjustment hole 23 is Screwed hole, the second adjustment hole 23 lower end inner wall is extended with internal projecting ring 24, extends in the middle part of regulation stick harness 8 outer wall There are outer bulge loop 81, outer bulge loop 81 outer wall to be provided with the screw thread coordinated with the second adjustment hole 23, regulate stick harness 8 Bottom is the most also set with the second sealing ring 83 and snap ring 82, and regulation stick harness 8 is through the first tune Knothole 13 and the second adjustment hole 23 stretch in quantitative valve chamber 21.

Binary packaging bag 9 is fastened at the lower ending opening of outer valve 1, the lower ending opening of outer valve 1 Communicating with binary packaging bag 9, the medium in binary packaging bag 9 is entered by the lower ending opening of outer valve 1 The spring chamber 11 of outer valve 1 and the quantitative valve chamber 21 of inner valve body 2.

During use, valve rod 4 is moved rearwards by, and the sealing shroud 7 on valve rod 4 is progressively resisted against spring chamber 11 And in the chamfering sealed between chamber 12, meanwhile, valve rod 4 drives cross-drilled hole 45 to be moved rearwards by, until close Spring chamber 11 is intercepted completely by big envelope 7 with sealing chamber 12, and the pressure of quantitative valve chamber 21 is stable, horizontal Hole 45 enters in quantitative valve chamber 21, and the medium of quantitative valve chamber 21 enters tap 44 from cross-drilled hole 45, Flow out outside this adjustable spray valve.

When spraying, stick harness 8 can be controlled to adjust by manipulation regulation stick harness 8 stretch according to self needs Enter the number of quantitative valve chamber 21, reach to reduce the purpose of the volume of quantitative valve chamber 21, and then adjustable spraying The size of amount.

In addition, the first adjustment hole 13 is also set to screwed hole by this adjustable spray valve, the second regulation Hole 23 is set to plain bore, and regulation stick harness 8 coordinates with the first adjustment hole 13, it is also possible to reach same skill Art effect.

This adjustable spray valve can be applicable in techniques below field:

Case 1, pharmaceutical arts spray, football player is injured, ethyl chloride spray (formal name used at school chlorine used Ethane spray, inherently a kind of anaesthetic, can anaesthetize the freezing local vascular that shrinks with him and reach Pain relieving and increase the weight of damage effect.) some moment injured area is the least, but spray area is very big, causes medicine The waste of agent, can the size of quick adjustable spraying agent area, save unnecessary waste.

Case 2, the storage tank that shampoo, handwashing liquid are used is all to extrude, by this scalable with hand pressure dynamics Formula spray valve apply in above-mentioned storage tank can any adjusting size, i.e. can by adult, child simultaneously The handwashing liquid used, man, the shampoo of Ms, special handwashing liquid of hospital etc. distinguishes.

Case 3, gas nail gun field, nail length demand is different the most on the market, the most tens of kinds of length, Have building, have carpenter etc., the nail gun inhalator jar used needs quantitatively every time, operate Member in use, need with different need to change nail gun inhalator jar could strength of adjustment size, with ours Design, can be general.Reach convenient, practical, the purpose of saving.

Above-described is only a kind of embodiment of the present utility model, it is noted that for this area For those of ordinary skill, on the premise of without departing from this utility model principle, it is also possible to make some changes Type and improvement, these also should be regarded as belonging to protection domain of the present utility model.

Claims

1. an adjustable spray valve, including outer valve, spring, jam pot cover, inner valve body and valve rod；

It is characterized in that:

Adjustable spray valve the most according to claim 1, is characterized in that:

Valve rod outer wall is extended with first annular boss, and first annular boss is in the meta of inner valve body and jam pot cover Putting, be set with the first sealing ring outside valve rod, the first sealing ring is in first annular boss and the jam pot cover of valve rod Between；

Adjustable spray valve the most according to claim 1, is characterized in that:

It is provided with chamfering between spring chamber and the sealing chamber of outer valve cavity.

Adjustable spray valve the most according to claim 1, is characterized in that:

First adjustment hole or the second adjustment hole are screwed hole, are extended with outer bulge loop, evagination in the middle part of regulation stick harness The outer wall of ring is provided with the screw thread coordinated with the first adjustment hole or the second adjustment hole.

Adjustable spray valve the most according to claim 4, is characterized in that:

Second adjustment hole lower end inner wall is extended with internal projecting ring, regulation stick harness bottom be set with the second sealing ring and Snap ring.