CN1067957C - Lid mounting structure for pressure vessel - Google Patents
Lid mounting structure for pressure vessel Download PDFInfo
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- CN1067957C CN1067957C CN95196170A CN95196170A CN1067957C CN 1067957 C CN1067957 C CN 1067957C CN 95196170 A CN95196170 A CN 95196170A CN 95196170 A CN95196170 A CN 95196170A CN 1067957 C CN1067957 C CN 1067957C
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Abstract
The present invention relates to a cover member installation structure of a pressure resistant container, which is used for preventing a cover member 2 from collapsing because of abnormal rise of inner pressure. The cover member 2 is bent and engaged in a flanging part 6 of an opening part 5 of a container main body 1. A cut 8 or a through hole is formed on the wall of the outer side of the flanging part 6, and thus, the elastic deformation resistant strength of the opening part of the flanging part 6 along the inner diameter expanding direction is partially lower than that of the cover member 2 along the inward radius direction.
Description
Technical field
The present invention relates to the lid mounting structure of Pressure Container, or rather, relate to the lid member that can prevent airtight Pressure Containers such as aerosol container and collapse the lid mounting structure that takes off because of the abnormal ascending of interior pressure.
Background technology
General aerosol container in the upper end of the circular top part that is being installed on tin portion upper end, or has peristome in the upper end with tube portion all-in-one-piece shoulder, at this peristome valve is installed.Specifically, this valve is to form outside flanging part around peristome, the mounting cover that is provided with valve is covered on this flanging part by pad, by the downside press-bending (interlock) of the sidewall of mounting cover to flanging part is installed on the container body.Wait under the high temperature if such aerosol container is placed in the automobile in summer, press singularly in then can making and rise.So will the generation container main body locate to break or mounting cover collapses accident such as take off from container body in seam etc.In addition, also same accident can take place not bleeding off under the occasion of burning on internal gas ground with incinerator.
In the past in order to prevent such accident, propose for example on container body, to form through hole, with this through hole of stopper filling of low-melting-point metal, stopper fusing at high temperature and discharge the aerosol container (with reference to special public clear 51-25610 number of Japanese patent gazette) of internal gas.Also can consider in the bottom surface of container body etc. to locate to be provided with safety valve in addition.But,, owing under the vehicle interior temperature (for example about 70～80 ℃) of automobile, do not melt, thereby can not prevent that collapsing of valve from taking off though the former is an actv. under the occasion of burning.Can freely set safe pressure under this external latter's the occasion, and also can reuse, but that aerosol container becomes being very expensive, is unpractical.
On the other hand, the aerosol device that has is the oral area that covers the container body of synthetic resin or glass with the mounting cover of lid type, utilizes the turn-up portion that forms around this oral area the fixing form of the lower end interlock of lid.In this aerosol device, proposed on the intensity of mounting cover and gas bleed hole, to work hard, to prevent blast (with reference to special fair 5-85431 number of Japanese patent gazette).But can only being applicable to, this structure uses special mounting cover.
The Pressure Container middle cover member of the lid member that use mounting cover that the present invention is intended to eliminate above-mentioned prior art etc. is specific collapses the problem of taking off.Even the object of the present invention is to provide to press to high pressure in a kind of and can prevent that also covering collapsing of member takes off, and, after internal drop is low, can still use Pressure Container, and the lid mounting structure of the Pressure Container that can make at an easy rate.
The inventor has repeatedly carried out the reproduction test of the break accident of aerosol container.And the aerosol container of the various ways of implementing to comprise above-mentioned motion carried out overtesting under all conditions.But the mechanism that fails to be moved reliably.Even Shi Zhi container can prevent to collapse the accident of lid in other words, but one accelerate practically and carry out bulk trial, and the break accident of certain ratio will take place.The unsuccessful reason of these mechanisms is owing to existing aerosol container additionally is provided with various structures, so just insufficient as the overall reliability of container.So thinking works hard in the scope of existing container method for making without hesitation partly improves will be successful act, so that finish the present invention.
Disclosure of an invention
The lid mounting structure of Pressure Container of the present invention, its structural being characterised in that, this structure is by the container body that has the flanging part that outwards curls around peristome, the lid member is formed, the section that this lid member has a periphery that coats above-mentioned flanging part is down " U " font and integral body is annular coating portion, be connected interior all bottoms of coating portion and be entrenched in side wall portion on interior week of flanging part, and the bottom of expanding continuously to the inside from the lower end of side wall portion, it is radial outwards outstanding that a plurality of positions of the bottom by side wall portion become, and the curved interlock of side pressure is secured on the said vesse oral area below flanging part; The hermetically-sealed construction of being made up of above-mentioned flanging part, pad and coating portion is inhomogenous in a circumferential direction, thus before lid member generation plastic deformation and collapsing is taken off, carry out elastic deformation by in flanging part, pad and the coating portion at least one, between them, produce seal leakage partly.
Such hermetically-sealed construction can obtain by the following method, for example make the opposing of above-mentioned flanging part because of the thrust pressure of interior pressure and lid member cause to the curl direction elastic deformation anti-elastic deformation intensity that enlarges of internal diameter simultaneously, be lower than partly the side wall portion opposing of cover member because of the counter-force of interior pressure and flanging part cause in the radial direction to the anti-elastic deformation intensity of contraction.
Be lower than the concrete structure of the anti-elastic deformation intensity of covering member partly as the anti-elastic deformation intensity that makes flanging part, for example can enumerate, become to form radially a plurality of notchs or hole at the outer peripheral portion of above-mentioned flanging part.In this occasion, preferably above-mentioned a plurality of notchs or hole are located at adjacent press-bending portion centre each other.Can form thin-walled partly by curling inside face in addition, make the anti-elastic deformation intensity of flanging part be lower than the anti-elastic deformation intensity of covering member partly above-mentioned flanging part.On the other hand, by the press-bending portion that makes above-mentioned lid member be projected into the center same degree of flanging part or the outside weaken in the radial direction that on the lid member, produces to thrust pressure, by deepening interlock, also can make the anti-elastic deformation intensity of flanging part be lower than the anti-elastic deformation intensity of covering member partly in addition.Preferably the bottom by making above-mentioned lid member perhaps becomes strengthening rib is set radially to the private side bending of container in addition, makes buckling be not easy to produce.In addition, preferably above-mentioned several textural associations, do as a whole and make the anti-elastic deformation intensity of flanging part be lower than the anti-elastic deformation intensity of covering member partly fully.
As hermetically-sealed construction is formed is inhomogenous other structures in a circumferential direction, can enumerate on the position of the frequent and pad closed contact in the coating portion of above-mentioned lid member, perhaps on the position of the frequent and pad closed contact in above-mentioned flanging part, also have near the circumference of above-mentioned pad, form respectively and discharge through hole or notch (notch), the perhaps thinner wall section that internal tank gas is used.Such through hole or notch or thinner wall section preferably become be provided with radially a plurality of.
In the structure of prior art, when interior voltage rise was high, upwards the power of pushing cover member just became big, and cramping the lid member of pad and the flanging part difference elastic deformation of peristome.Therefore, the power of grip gasket is that sealing load reduces.If hermetically-sealed construction is homogeneous in a circumferential direction, even then carry out above-mentioned elastic deformation, shape is also almost constant, rises to such an extent that often also do not produce gas leakage up to interior pressing.Yet because the hermetically-sealed construction homogeneous, local anti-deformation strength also is a homogeneous, so if interior pressure surpasses the upper limit of power of the snap-on covers member at a position, then integral body is thrown off simultaneously, and causes lid to collapse the accident of taking off.On the other hand, in structure of the present invention, because hermetically-sealed construction is inhomogenous, though thereby under common interior pressure scope, can obtain enough sealing loaies, if but interior pressure raises singularly, the sealing load at a then specific position is just low especially, just produces gas leakage from this.In addition, even the sealing load of this part reduces,, do not collapse and take off so single-piece does not take place because the sealing load and the Keying strength of other parts are constant.
Make the opposing of above-mentioned flanging part because of the thrust pressure of interior pressure and lid member cause to the curl direction elastic deformation simultaneously the anti-elastic deformation intensity that enlarges of internal diameter, be lower than that the side wall portion opposing of cover member causes because of the counter-force of interior pressure and flanging part partly in the radial direction in the hermetically-sealed construction of the anti-elastic deformation intensity of contraction, press when rising when interior, flanging part is just upwards pushed away, and outwards enlarges.On the other hand.The lid member by the counter-force of interior pressure and flanging part in the radial direction to compression.But because a little less than the anti-elastic deformation intensity of the intensity ratio of anti-elastic deformation of flanging part lid member wants, thereby flanging part enlarges laterally before the elastic deformation amount of lid member strengthens.At this moment because the coating portion of the outer peripheral face tegmentum member of flanging part is coating, thereby flanging part is curled.In other words, because the flanging part internal diameter becomes big, and on the other hand, external diameter is tied, and produces hoop tension (pulling force of circumferencial direction, hoop tensile stress), thereby its free end (lower end) inwardly is involved in, and crimp diameter diminishes.Thereby between the inside face of the outside face of flanging part and coating portion, produce the gap, weaken the contact pressure sealing load at least.Therefore between produces seal leakage, and the container body gas inside is leaked and made internal drop low.Can prevent that thus covering collapsing of member takes off.
Because the distortion of above-mentioned flanging part is an elastic deformation, thereby interior pressure is recovered the sealing function between flanging part and the coating portion once more once reduction, form recovery.Therefore, the purposes that after this can be used to Pressure Container to expect once more (for example injection of aerosol etc.).
By becoming to form radially a plurality of notchs or hole at above-mentioned flanging part, when weakening the anti-elastic deformation intensity of flanging part partly, flanging part is not to enlarge laterally equably, and privileged sites such as the notch easy deformation that becomes enlarges morely at these positions laterally.Therefore flanging part be we can say and is deformed into polygon, and internal gas spills from the big position of this distortion easily.Thereby preventing to cover member, to collapse the effect that very high.If in addition notch or hole are located between the press-bending portion adjacent one another are, then can guarantee fully to cover the pressure change portion of member and the interlock of flanging part, and near notch, can positively bring into play the venting effect.
The press-bending portion of covering member is projected under the occasion with the curling center same degree of flanging part or the outside, on the lid member, produce in the radial direction to power weaken partly, and the interlock of press-bending portion is deepened partly.Therefore cover that member is more difficult to be collapsed.In addition, when the private side of container was crooked, the lid interior pressure that member bore makes to be covered member and enlarges laterally in the bottom that makes above-mentioned lid member.Therefore the interlock of press-bending portion and flanging part is more firm, and the lid member is not easy to throw off, and face buckling simultaneously is not easy to produce.Therefore more improve safety.Becoming to be provided with radially strengthening rib to the bottom by the side wall portion from the lid member in addition also can make the face buckling be not easy to produce.
Though along with the rising of pressing in above-mentioned, the coating portion of lid member or the flanging part elastic deformation of container body meanwhile, are clipped between the two pad also by outside thruster, elastic deformation enlarges internal diameter, simultaneously the thickness thickening therefrom.Therefore on the position of the frequent and pad closed contact in the coating portion of above-mentioned lid member, perhaps on the position of the frequent and pad closed contact in above-mentioned flanging part, also have near the circumference of above-mentioned pad, form through hole or notch respectively, perhaps thinner wall section, they can be along with interior pressing rises and cause the elasticity hole enlargement of pad, to discharge internal tank gas, in this hermetically-sealed construction, the hole enlargement that causes along with the elastic deformation of above-mentioned pad, gas begins to leak from through hole or notch, and internal drop is low.Can prevent from thus to cover to collapse to take off.In addition, for local thinner wall section is set in pad, during by outside thruster, strengthen especially at the thinner wall section internal diameter at pad.Therefore produce gas leakage from this part, make internal drop low.The most preferred embodiment of lid mounting structure of the present invention is described below with reference to drawing.
The brief description of drawing
Fig. 1 is the front view of main portion of biopsy cavity marker devices of an embodiment of expression structure of the present invention.
Fig. 2 is that cutaway view is omitted in the part of state before the assembling of structure of presentation graphs 1.
Fig. 3 and Fig. 4 are respectively the local amplification view and the birds-eye vieies of deformation state of the structure of presentation graphs 1.
Fig. 5 and Fig. 6 a～b are the main portion cutaway views of representing another embodiment of flanging part of the present invention respectively.
Fig. 7 and Fig. 8 are the main portion cutaway views of representing another embodiment of lid member of the present invention respectively.
Fig. 9 a and Fig. 9 b be represent respectively structure of the present invention another embodiment the main portion cutaway view and the expression its effect the main portion cutaway view.
Figure 10 a and Figure 10 b be represent respectively structure of the present invention another embodiment the main portion cutaway view and the expression its effect the main portion cutaway view.
Figure 11 is the main portion transparent view of another embodiment of expression covering part of the present invention.
Figure 12 is the main portion cutaway view of another embodiment of expression structure of the present invention.
Figure 13 is the main portion transparent view of another embodiment of expression flanging part of the present invention.
Figure 14 is the transparent view of another embodiment of expression pad of the present invention.
Figure 15 is the main portion transparent view of another embodiment of expression pad of the present invention.
Figure 16 is the main portion cutaway view of another embodiment of expression structure of the present invention.
Figure 17 is a diagram of curves of representing the effect of structure of the present invention with the structure of prior art contrastively.
The best mode that carries out an invention
Below, though be that representative illustrates structure of the present invention, the invention is not restricted to this with the aerosol container, also can be used in the mounting structure of lid member of other Pressure Containers, receive same effect.Among Fig. 1 and Fig. 2, label 1 is the container body of aerosol container A, label 2 is the mounting covers (lid member) of peristome that can be installed on the top of this container body 1.Cylindrical portion 3, connection shoulder 4 at an upper portion thereof that container body 1 includes bottom tube-like reach the flanging part 6 that crimping is shaped around the upper end open portion 5 of this shoulder 4.And in the present embodiment the curling inside face 7 of flanging part 6 through cutting to reduce wall thickness, and for example the right side of Fig. 1 or Fig. 2 significantly shown in, on the lower edge with respect to the lateral wall of container center of flanging part 6, form 4～6 notchs 8 that fall " U " font.Notch part 8 along the circumferential direction becomes radial arrangement with equal intervals.
This container body 1 is that for example aluminium sheet about thickness 0.35～0.60mm is die-cut into circle, be shaped or drawing attenuated drawing and forming technology formation cylindrical portion 3 with impact extrusion, carry out necking down processing at an upper portion thereof and form shoulder 4 and cylindrical portion (6a of Fig. 2), periphery to the cylindrical portion 6a that constitutes the inside face that curls is cut, form notch 8 simultaneously, outwards carry out crimping again and be processed to form flanging part 6, just can manufacture shape shown in Figure 2 thus.In addition, alternative aluminium sheet, use other metal sheets such as tin glazed steel plate, also can use the material of coverage of synthetic resin film on metal sheet.
Above-mentioned mounting cover 2 by be coated on the flanging part 6 section for fall " U " font and also form single-piece coating portion (turn-up portion) 9 circlewise, the side wall portion 10 that extends from its lower ends downward side, inboard bottom 11 of extending, the valve fixed part 12 that rises from the central authorities of bottom are formed from its lower end towards radial direction.This mounting cover 2 also can be with formations such as circular metal plate same as described above, available such technological process manufacturing promptly forms valve fixed part 12 with drawing and forming technology, reverse again drawing and forming side wall portion 10, after the upper end deburring to this side wall portion 10, carry out the flangikng shaping and form coating portion.The mounting cover 2 that obtains as described above as shown in Figure 2, is installed in valve 13 on the valve fixed part 12, and after the inside face of coating portion 9 inserts the pad 14 of ring-type, is configured in the top of container body 1, makes on its interior week that temporarily is entrenched in flanging part 6.Then after content being filled into 1 li of container body, setting-in as shown in Figure 1, forms the bottom companding of side wall portion 10 (arrow A 1) press-bending portion 16 with 4～6 press-bending pawls securely, press-bending by at bevelled lower surface 15 positions of flanging part 6 is assembled on the container body 1.
Have among the aerosol container A of structure as mentioned above, under the occasion of interior pressure abnormal ascending, as shown in Figure 3, interior pressure vertically is applied on the shoulder 4, and the interior pressure that makes progress is applied on the mounting cover 2 as the lid member.Therefore, the effect of the outward force that is subjected to by the effect of the interior pressure that is applied to shoulder 4 with from the press-bending portion 16 of mounting cover of flanging part 6 and outwards expansion (arrow N).On the other hand, concerning mounting cover 2, under power that makes progress that interior pressure causes and the counter-force summation action of bearing through press-bending portion 16 from shoulder 4 lower surfaces, be towards the radial direction inboard compression.Since the flanging part 6 here as above-mentionedly be thin-wall and notch 8 is arranged, thus easy deformation, and mounting cover 2 is not easy distortion.Therefore as shown in Figure 3, flanging part 6 just inwardly is involved in (arrow S), and crimp diameter d is diminished, thereby produces the gap between the inside face of the coating portion 9 of the outside face of flanging part 6 and mounting cover 2, perhaps the sealing load step-down.Therefore gas inside spills.
Fig. 4 represents the state of the distortion of the flanging part 6 seen from the top.In other words, be arranged under the occasion at four positions at the notch of easy deformation, as shown in Figure 4, owing to there is the part 8a of notch 8 outwards outstanding, other parts are motionless, are deformed into square shape so we can say flanging part 6.This distortion of flanging part is guaranteed to produce the gap between the inside face of the coating portion 9 of the outside face of flanging part 6 and mounting cover 2, further guarantees the loss of gas.And like this, owing to have the part 8a of notch 8 outstanding laterally, so press-bending portion (label 16 of Fig. 1) preferably avoids notch 8 ground settings.
In addition, under the occasion that the interior pressure in aerosol container A continues to rise, the elastic deformation of above-mentioned flanging part 6 and gas leakage continue to produce, and gas inside is leaked, and interior pressure is maintained at below the certain limit.Like this, in the structure of present embodiment, by the relatively poor part of anti-elastic deformation intensity to the distortion of the specific direction of the specific part of flanging part 6 and mounting cover 2 is set, preventing that collapsing of mounting cover 2 from taking off, is safe.And when interior pressure because exterior drop in temperature etc. is former thereby when reducing, the elastic deformation of flanging part 6 restores, and still can continue common use.
Fig. 5 is illustrated in the embodiment that substitutes notch 8 on the outer wall of described flanging part 6 and form through hole 17.This structure is also the same with the foregoing description, has to strengthen the elastic deformation amount that flanging part 6 is expanded laterally, makes venting be easy to effect.
Fig. 6 a represents the integral body of the outer peripheral face of the cylindrical portion 6a of the curling inside face 7 that constitutes flanging part 6 is cut away (with reference to imaginary line P), makes the embodiment of the wall thickness attenuation of the flanging part 6 after the processing.And Fig. 6 b is illustrated in the embodiment that forms many annular incision 18 on the outer peripheral face of above-mentioned cylindrical portion 6a.Like this, if form the otch 18 of the wall thickness reduction that makes flanging part 6, then to after the processing of cylindrical portion 6a crimping, the intensity of the curl direction of flanging part 6 just reduces.Therefore, just guarantee in the venting of voltage rise when high.In addition, crimping processing itself is also simple.Forming under the occasion of container body with drawing attenuated pull and stretch processing technology, though the container attenuation, during the drawing and forming in order to be shaped oral area (necking down processing) shoulder (Fig. 2 4), cylindrical portion (6a of Fig. 2) thickening.So the pre-processing that the processing that this attenuate wall thickness is formed otch is processed as crimping is an actv..In addition, though also be same when impact extrusion is shaped, it is bigger than drawing attenuated pull and stretch processing generally to become thick-wall tendency, so the latter carries out crimping processing etc. easily.
Fig. 7 makes the section-drawing of giving prominence to the private side bending of container as the bottom 11 of the mounting cover 2 that covers member.If the bottom 11 is curved inwardly, then identically be not easy to take place the face buckling that forms by interior pressure with the situation of the base plate of container body.So before mounting cover 2 is thrown off, with flanging part 6 expansion laterally fully, exit with regard to easier.Therefore can prevent positively that collapsing of mounting cover 2 from taking off.
Fig. 8 represents from the embodiment of side wall portion 10 radial strengthening rib 19 of 11 formation to the bottom of mounting cover 2.And strengthening rib 19 does not hinder press-bending to add the building site press-bending portion 16 middle formation each other.Because this also is not easy to produce the face buckling of mounting cover 2, takes off so can prevent collapsing of mounting cover 2 equally.It is chimeric dearly with the other places that press-bending portion 16 preferably is projected into the center of flanging part 6.Can prevent further that thus collapsing of mounting cover 2 from taking off.
In the structure shown in Fig. 9 a, on the upper surface of the coating portion 9 of mounting cover 2, form through hole 21.Through hole 21 preferably for example equally spaced is provided with a plurality of at circumferencial direction.Under this occasion of pressing in acting on usually, through hole 12 is blocked by pad 14, if but acting on unusual interior pressure, then pad 14 is pushed to the outside shown in Fig. 9 b, produces very big elastic deformation.Therefore through hole 12 is communicated with internal tank, produces gas leakage.Then, pad 14 narrows down to original state once more if internal drop is low, blocks through hole and recovers sealing function.As mentioned above, flanging part 6 produces and is involved in when applying unusual interior pressure, simultaneously along with the also outwards expansion of hole enlargement coating portion 9 of pad 14.Therefore the leeway of the hole enlargement of pad 14 is bigger.
Under the occasion of the structure shown in Figure 10 a, on the upper surface of flanging part 6, form through hole 22.This also with Fig. 9 a～-structure of 9b is identical, in common, depress through hole 22 and blocked, pad 14 hole enlargements when applying unusual interior pressure, through hole 22 and internal communication (with reference to Figure 10 b) by pad 14.
In the structure shown in Figure 12, substitute the notch 23 in embodiment illustrated in fig. 11 and form embossed portion 24.Embossed portion 24 is to constitute some swells from the top of coating portion 9 to outer peripheral edges to form, and becomes to be located at radially a plurality of positions.Though this receives the action effect identical substantially with the occasion that notch 23 is set, be whole along the circumferential direction continuous owing to be provided with otch, so the intensity height.
Flanging part 6 shown in Figure 13 is provided with notch (notch) 25 from top to outer peripheral edges.This be the through hole in the structure 22 shown in Figure 10 a with the structure of Fig. 1 in the combining of notch 8, almost receive the action effect of both combinations.But because the reduction of anti-deformation strength, so when being deformed into polygon shown in Figure 4, it is big that its deformation extent just becomes.
Pad 14a shown in Figure 14 forms a plurality of notchs (notch) 26 at circumference.Though this pad 14a also is clipped in as the imaginary line of Figure 15 between flanging part 6 and the coating portion 9 and uses, but when in as the arrow of Figure 14, applying, pressing, as the solid line of Figure 15, be pushed to the outside, produce the elastic deformation that enlarges laterally, and then as the imaginary line of Figure 14, be deformed into polygon.And it is very big with notch 26 corresponding inner edge portion 27 distortion.Thereby gas just leaks from this position easily, when interior pressure abnormal ascending, makes internal drop low by gas leakage.If in addition the coating portion of this pad 14a and above-mentioned band through hole (Fig. 9 a), the flanging part of band through hole (Figure 10 a), the textural association of the flanging part (Figure 13) of the coating portion (Figure 11, Figure 12) of band notch or embossed portion or band notch, then gas can be from leakages more such as through holes with guaranteeing.
Diagram of curves shown in Figure 17 is schematically to represent the interior pressure of container and the relation of quantity of gas leakage (for example rate of volume flow), the structure that the leak free air-tightness is high, for example dotted line a is such, though in press liter, spillage also less increases.Therefore if interior pressure rises sharp, then produce container break or collapsing of covering taken off (with reference to the K point).Though represent that with straight line both are proportionate relationships among the figure, in fact be drawn as predetermined curve, in addition, and the structure that the leak free air-tightness is low, even interior pressure rises on a small quantity shown in long and short dash line C, gas leakage is also very big, thereby the rising of interior pressure is littler than air tight structure.But have this problem, even depress in common scope exactly, spillage is also very big.
On the other hand, solid line b roughly represents to have the interior pressure of container of lid mounting structure of the present invention and the relation of gas leakage.This structure is also high identical of leak free gas of quantity of gas leakage in common interior pressure scope, if surpassing predetermined limit, interior pressure rises singularly, then as mentioned above, the local elasticity's distortion by coating portion, flanging part or pad is along with the uprising gas spillage of interior pressure sharply increases.Therefore press in and reduce with the low same degree of structure of leak free air-tightness or surpass it.Thereby use cover attaching construction of the present invention, can guarantee the high leakproofness and the safety under the occasion that produces unusual interior pressure of in common, depressing simultaneously.
In the mounting structure of lid member of the present invention, owing to press when rising, make flanging part, pad or coating portion elastic deformation and produce gas leakage partly interior.Thereby the lid member collapse take off before, between lid member and flanging part, produce gas leakage, make internal drop low.Therefore can prevent to cover collapsing of member and take off, be safe.In addition, because of gas leakage, when internal drop is low, sealing function are recovered, so can reuse.
Claims (14)
1. the lid mounting structure of a Pressure Container, it is characterized in that: it is made of following member:
Container body, this container body have the flanging part that outwards curls around peristome;
The lid member, the section that this lid member has a periphery that coats above-mentioned flanging part is down " U " font and integral body is annular coating portion, is connected interior all bottoms of coating portion and is entrenched in side wall portion on interior week of flanging part and the bottom of expanding continuously to the inside from the lower end of side wall portion, it is radial outwards outstanding that a plurality of positions of the bottom by side wall portion become, and the curved interlock of side pressure is secured on the said vesse oral area below flanging part;
The pad of ring-type, this pad are clipped between above-mentioned flanging part and the coating portion;
The hermetically-sealed construction of being made up of above-mentioned flanging part, pad and coating portion is inhomogenous in a circumferential direction, thus before lid member generation plastic deformation and collapsing is taken off, carry out elastic deformation by in flanging part, pad and the coating portion at least one, between them, produce seal leakage partly.
2. structure as claimed in claim 1, it is characterized in that: make the opposing of above-mentioned flanging part because of the thrust pressure of interior pressure and lid member cause to the curl direction elastic deformation anti-elastic deformation intensity that enlarges of internal diameter simultaneously, be lower than partly the side wall portion opposing of covering member because of the counter-force of interior pressure and flanging part cause in the radial direction to the anti-elastic deformation intensity of shrinking, before lid member generation plastic deformation and collapsing is taken off, between flanging part and coating portion, produce leakage partly thus.
3. structure as claimed in claim 1 is characterized in that; Be divided into by peripheral part and form a plurality of otch or hole radially, weaken the anti-elastic deformation intensity of above-mentioned flanging part partly at above-mentioned flanging part.
4. structure as claimed in claim 3 is characterized in that: above-mentioned a plurality of otch or hole are located at adjacent press-bending portion centre each other.
5. as each described structure in the claim 1,2,3 or 4, it is characterized in that: the curling inside face of above-mentioned flanging part is formed thin-walled partly.
6. as any one described structure in the claim 1～5, it is characterized in that: make the press-bending portion of above-mentioned lid member be projected into the curling center same degree or the outside with flanging part.
7. as any one described structure in the claim 1～6, it is characterized in that: make of the private side bending of the bottom of above-mentioned lid member to container.
8. as any one described structure in the claim 1～7, it is characterized in that: to the bottom, become to form radially strengthening rib from the side wall portion of above-mentioned lid member.
9. structure as claimed in claim 1 is characterized in that: on the position of the frequent and pad closed contact in the coating portion of above-mentioned lid member, form through hole or notch, in order to discharge the gas of internal tank along with the elasticity hole enlargement of pad.
10. structure as claimed in claim 1 is characterized in that: on the position of the frequent and pad closed contact in above-mentioned flanging part, form through hole or notch, in order to discharge the gas of internal tank along with the elasticity hole enlargement of pad.
11. structure as claimed in claim 1 is characterized in that: near the circumference of above-mentioned pad, form through hole or notch, in order to discharge the gas of internal tank along with the elasticity hole enlargement of pad.
12., it is characterized in that as any one described structure in claim 10 or 11: above-mentioned through hole or notch become be provided with radially a plurality of.
13. structure as claimed in claim 1 is characterized in that: the part that wall thickness along the circumferential direction is set on above-mentioned pad partly.
14. structure as claimed in claim 13 is characterized in that: the part of above-mentioned wall thickness becomes to be provided with radially many places.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN95196170A CN1067957C (en) | 1995-08-10 | 1995-08-10 | Lid mounting structure for pressure vessel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN95196170A CN1067957C (en) | 1995-08-10 | 1995-08-10 | Lid mounting structure for pressure vessel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1162948A CN1162948A (en) | 1997-10-22 |
| CN1067957C true CN1067957C (en) | 2001-07-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN95196170A Expired - Fee Related CN1067957C (en) | 1995-08-10 | 1995-08-10 | Lid mounting structure for pressure vessel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1067957C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100545056C (en) * | 2007-11-12 | 2009-09-30 | 徐秀珍 | Aerosol valve with security function |
| CN102267602A (en) * | 2010-01-22 | 2011-12-07 | 万通集团公司 | Improved neck-finish for an aerosol container |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1310804C (en) * | 2004-04-13 | 2007-04-18 | 珠海中富实业股份有限公司 | Wide mouth container bottle, method and device for producing wide mouth container bottle |
| US20130082074A1 (en) * | 2011-10-03 | 2013-04-04 | Graham Packaging Company, L.P. | Plastic aerosol container assembly and method of making |
| CN102795433A (en) * | 2012-08-31 | 2012-11-28 | 苏州拓维工程装备有限公司 | Normally press and normally open type sealed manhole device with curved surface and folded edge |
| US9845186B2 (en) | 2015-04-01 | 2017-12-19 | Graham Packaging Company, L.P. | Structure and method of sealing a closure assembly onto the neck finish of a plastic pressure container |
| JP6754340B2 (en) * | 2017-08-25 | 2020-09-09 | 東洋製罐株式会社 | Bottle cans and bottle cans with caps |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0585431B2 (en) * | 1984-06-12 | 1993-12-07 | Toyo Aerosol Ind Co |
-
1995
- 1995-08-10 CN CN95196170A patent/CN1067957C/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0585431B2 (en) * | 1984-06-12 | 1993-12-07 | Toyo Aerosol Ind Co |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100545056C (en) * | 2007-11-12 | 2009-09-30 | 徐秀珍 | Aerosol valve with security function |
| CN102267602A (en) * | 2010-01-22 | 2011-12-07 | 万通集团公司 | Improved neck-finish for an aerosol container |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1162948A (en) | 1997-10-22 |
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