CN106414255A - 带有减压阀的加压容器 - Google Patents
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Abstract
诸如桶的拉伸吹塑容器,具有装配有盖4的颈部3,以将加压内容物保持在容器内。微型减压阀(PRV)30‑33包含在颈部的壁厚内,以在发生过压事件时释放气体。该PRV可以包括使容器不可用的破裂元件,或者包括弹簧加载的密封件30,其在释放过大的压力后重新密封。可以通过移除盖而将该PRV永久地变为打开状态,从而防止容器的重新使用。
Description
技术领域
本发明涉及加压容器,更具体地涉及由热塑性聚合物形成的拉伸吹塑(SBM)容器。
背景技术
容纳有在压力下分配的啤酒、其它加压液体或非加压液体的SBM容器承受相当大的内部压力。最大压力通常标识在容器上,且不应被超过。如果超过压力极限,则可能发生潜在的危险的爆裂情况。容器内的内部压力受几个因素的影响,包括初始气体含量、温度、填充后发酵过程、与分配系统的连接等。因此,希望结合减压阀(PRV)以防止压力过度上升。
SBM容器通过拉伸和吹塑预成型的热塑性型坯的主体而制造,并且在使用中,容器的主体可能在压力下经受进一步的变形。因此,难以将PRV安装在容器的主体中。安装PRV的明显位置是在容器封闭件中,其通常是注塑成型和尺寸稳定的,并且至少一个已知的容器使用这种布置。然而,由于空间限制和需要避免对填充和排空封闭件中内置的部件的设计的影响,PRV必须位于这样的位置,该位置使得它与气体相比更可能排出液体。非常期望的是,在潜在的过压条件期间,PRV排出气体而不是液体,因为这更有效地降低压力。此外,排出气体还使有价值产品的损失最小化,并避免有时与液体溢出相关的不便或潜在的危险。
还提出了为酒瓶的颈部提供可以移除以对瓶子减压的塞子,使得软木塞可以安全地移除。(参见FR339048-A,DE275688-C和FR2769297-A1。)
本发明寻求提供一种新的和创造性的容器形式,其更有效地防止过压条件并且降低被排出的是液体而非气体的风险。
发明内容
本发明提出了一种根据权利要求1所述的容器。
由于颈部在吹塑过程中不变形,所以有可能将PRV结合到该区域中而不损害封闭件的功能。只要容器以其颈部在最上方来储存(通常是这种情况),内部气体将优先于任何液体内容物被排出。
本发明还提供了一种容器,其具有封闭件和位于封闭件内的减压阀。
本发明还提供了一种容器,其具有颈部和基本上包含在颈部的壁厚内的减压阀。
本发明还提供了一种容器,其具有容纳在颈部的壁中的凹部中的减压阀。
本发明还提供了一种容器,其具有颈部和通向颈部外部的凹部以及位于凹部和颈部内部之间的排气口。
本发明还提供了一种容器,其具有通过保持环保持在凹部中的减压阀。
本发明还提供了一种具有凹部的容器,该凹部邻近其外端向外成阶梯状以接收保持环。
本发明还提供了一种具有减压阀的容器,该减压阀包括在过压情况下破裂的破裂元件。
本发明还提供了一种容器,其具有抵靠环形密封件保持的破裂元件,环形密封件抵靠阀座保持。
本发明还提供一种容器,其具有通过环形密封件载体抵靠环形密封件保持的破裂元件。
本发明还提供了一种具有减压阀的容器,该减压阀包括密封件,其通过弹簧加载抵靠在阀座上。
本发明还提供了一种容器,其具有保持在密封件载体内的密封件。
本发明还提供了一种具有减压阀的容器,该减压阀包括在保持环和密封件载体之间作用的压缩弹簧。
本发明还提供了一种具有颈部的容器,该颈部具有封闭件和减压阀,该减压阀在容器的封闭件和颈部之间排出气体。
本发明还提供了一种具有颈部和封闭件的容器,该封闭件具有与容器颈部上的外螺纹接合的内螺纹。
本发明还提供一种具有封闭件的容器,该封闭件适于接合减压阀,使得将封闭件的移除使减压阀打开,以使容器减压。
本发明还提供了一种具有封闭件的容器,该封闭件适于接合保持环,使得保持环与封闭件一起被移除。
本发明还提供了一种具有封闭件的容器,其中封闭件的内螺纹与保持环上的突起接合。
本发明还提供了一种容器,其具有带弹簧突起的保持环。
本发明还提供一种具有带内螺纹的封闭件的容器,该内螺纹包括与保持环上的突起接合的凹口。
本发明还提供了一种具有带凹口的封闭件的容器,该凹口在一端具有斜面,并且凹口的相对端具有止挡部。
本发明还提供了一种具有封闭件的容器,该封闭件包含进入孔,工具可以通过该进入孔插入,以打开减压阀。
本发明还提供了一种具有封闭件的容器,该封闭件具有形成在封闭件的顶壁中的进入孔。
本发明还提供一种容器,其包含可通过容器颈部中的配件填充的柔性袋,并且该配件设置有减压阀,以从袋向容器的配件和颈部之间的空间中排气。
本发明还提供了一种容器,其具有通过拉伸吹塑成型形成的主体和包含减压阀的颈部。
附图说明
为了说明如何将本发明付诸实践,下面的描述和其中所参考的附图作为非限制性示例。在附图中:
图1是根据本发明的桶型容器的轴向截面图;
图2是用于制造桶的型坯的轴向截面图;
图3是装配有盖的桶的颈部的放大截面细节图,以轴向剖面示出了PRV的第一实施例;
图4是示出了PRV的第二实施例的颈部和盖的另一个放大的截面细节图;
图5是颈部的总体外部视图,示出了对PRV的改型;
图6是容器的盖的总体内部视图,旨在与改型的PRV一起使用;
图7是局部剖开的总体视图,示出了对用于接近PRV的盖的改型;
图8是根据本发明的桶中袋类型的容器的上端截面图;以及
图9是根据本发明装有PRV的另一种桶中袋类型的容器的截面图。
具体实施方式
首先参考图1,桶1是经常用作啤酒、果汁或其它加压或非加压液体的容器的类型。桶包括具有一体的颈部3的中空容器主体2,该颈部设置有盖4形式的封闭件。顶部边缘(未示出)可以固定到主体2的上部,并且容器的底部可以设置有底部边缘(也未示出)或成形为支撑桶并在堆叠期间接合另一个桶的顶部边缘-参见WO2012/066303A1,其内容通过引用并入本文。盖4由合适的热塑性聚合物注塑成型,具有圆柱形侧壁5和端壁6,并且包括完全可再循环的阀装置6A,以允许填充和排空桶-参见WO 2011/161456A1,其内容也通过引用并入本文。减压阀(PRV)7安装在颈部3中。
参考图2,容器主体2和颈部3由例如PET的合适的热塑性聚合物从预成型的型坯10开始形成。型坯的开口端结合容器的颈部3,但是颈部3下方的剩余主体部分11相对于容器主体小且相对厚壁。颈部3是具有外螺纹12的圆柱形形状。突出的外颈环13将颈部3与主体部分11分隔开。颈部3的壁具有厚度W,并且在邻近颈环13处包含包括圆形凹部14的PRV壳体,该圆形凹部14是阶梯形的以提供直径增大的进入部15。凹部14的底部经由端口16与颈部3的内部连通。容器通过拉伸吹塑成型(SBM)形成,在此期间,颈环13下方的型坯的主体部分11被加热,同时空气吹入型坯中,使得部分11的壁膨胀和伸展,如虚线所示,直到由合适的模具限制,其达到容器的最终形状。颈部3的尺寸和形状在整个SBM过程中保持不变。
在SBM过程之前或之后,将微型减压阀(PRV)完全在颈部3的壁厚内地安装在凹部14中。当盖4旋拧到颈部3上时,通过盖的顶壁6与颈部3的相对端面的接合将加压内容物密封到容器中。如果需要,可以在盖和颈部3的端面之间插入密封垫圈。如本领域已知的加压容器,螺纹被构造成使得一旦密封件被释放,气体可以绕过螺纹,从而在盖被拧开时没有内部压力。
简单形式的一次性PRV如图3所示,图3还示出了装配到容器的颈部3的盖4。PRV安装在凹部14中,基本上在颈部3的壁厚W内,并且包括环形密封件20,其形成围绕端口16抵靠凹部14底部的连续密封,该凹部14的底部构成阀座。爆破片21通过环形密封件载体22密封地保持抵靠环形密封件20的外端,环形密封件载体22又通过外保持环23保持在凹部14内。环23可以通过摩擦固定在入口部分15中,不过也可以使用粘合剂、热喷丸等。在正常内部压力下,内容物被密封到容器中,但是过压事件将导致爆破片21破裂,允许气体通过端口16逸出,经过密封件20、密封件载体22和保持环23的内部,在盖4的下端和颈环13之间离开。使用这种形式的PRV,所有内部压力将不可恢复地损失。这是本质上安全的,因为装置的一个操作将消除过压条件的所有风险,尽管容器在事件之后变得不可用。
图4示出了在过压事件之后重新密封容器的合适的微型PRV的第二实施例。再一次地,附图示出了装配到容器的颈部3上的盖4。该PRV再次安装在凹部14中,在颈部3的壁厚W内,并且包括盘形密封件30,该盘形密封件30安装在密封件载体31内,以形成围绕端口16抵靠凹部14底部的连续密封,凹部14的底部构成阀座。密封件载体22通过外保持环32保持在凹部14内。环32可以通过摩擦固定在入口部分15中,不过也可以使用粘合剂、热喷丸等。压缩弹簧33在保持环32和密封件载体31之间作用,使得端口16由密封件30密封地关闭。在正常内部压力下,内容物被密封到容器中,但是过压事件导致密封件30克服弹簧33的作用而移动远离端口16,允许气体通过端口16,围绕密封件载体31并且通过保持环32的内部逸出,在盖4的下端和颈环13之间离开。这种弹簧回流阀将仅减轻过压,这可能是优选的,例如,如果过度加压是由后发酵引起的,因为其仅在发酵过程期间排出过量气体并仍然允许使用内容物。
颈部安装的PRV也可以用作有效的安全装置,以在盖被移除之后防止对桶的再填充。图5示出了一种改型,其中PRV的保持环形成有弹簧舌42,该弹簧舌42沿着将盖4旋拧到颈部3的方向向外倾斜。盖4的内螺纹(图6)形成有协作凹口43。凹口的尾端在将盖拧到颈部的方向上成形为形成倾斜的斜坡44,而相对的前缘形成止挡部45。当盖被旋拧到颈部3上,斜坡44使得凹口43能够平稳地行进通过由盖螺纹向内凹陷的舌部42。然而,如果盖被拧开,则舌部42向外弹出到凹口中,舌部的外端接合止挡部45,使得保持环被从颈部拉出。一旦保持环移动,PRV就不能密封抵靠端口16,使得容器不再能被加压。
锁定环和盖可以具有类似地使得锁定环被移除并且在每次拧开盖时打开PRV的其他构造。
当容器已经排空液体时,过压条件可能更危险,并且为此原因,用户通常优选在使用后完全减压容器。图7示出了能够在不移除盖的情况下手动减压容器的布置。盖4的顶壁6包含小的进入孔50,其使得诸如螺丝刀的工具能够插入在颈部3和侧壁5之间以接近PRV7,由此可以破坏保持环以减轻内部压力。通过对准的凹口51(其可以是相同的凹口,其允许释放的气体在盖旋开时绕过螺纹)获得通过螺纹的通路。
本发明也适用于这样的容器,其中液体容纳于容器内的柔性袋60中,如图8所示。颈部可以包括内部管状配件61,通过从盖4注入到袋和容器主体2的壁之间的空间中的气体压力而经该内部管状配件61从容器中抽出液体。在这种情况下,气体空间通过安装在容器的颈部中的PRV 7来排气,但是附加的PRV 62安装在配件61的壁中,以将内部压力从袋60内部经由配件61排到配件和容器颈部之间的内部气体空间64中。可选地,附加的PRV 62可以定位成通过将袋密封安装到袋的口部的配件的底端处的环形凸缘63中,而使袋直接对气体空间排气,如图9所示。
从容器的外部装配PRV简化了装配,尽管同样可能从颈部内部装配PRV并且通过出口排出气体。
虽然上述描述强调了被认为是新的并且解决了已经认识的特定问题的区域,但应意识到,本文公开的特征可以以任何组合来使用,其能够在本领域提供新的且有用的进步。
Claims (15)
1.一种具有热塑性主体(2)的容器(1),所述热塑性主体(2)设置有装配有封闭件(6)的颈部(3),所述封闭件结合有分配阀(6A)且与所述颈部接合以将加压内容物保持在所述容器内,
其特征在于,所述容器的颈部(3)结合有减压阀(7)。
2.根据权利要求1所述的容器,其特征在于,所述减压阀(7)基本上包含在所述颈部(3)的壁厚内。
3.根据权利要求1所述的容器,其特征在于,所述减压阀(7)容纳在通向所述颈部外部的凹部(14)中,并且在所述凹部与所述颈部的内部之间存在排气口(16)。
4.根据权利要求3所述的容器,其特征在于,所述减压阀(7)通过保持环(23,32)保持在所述凹部(14)中。
5.根据权利要求4所述的容器,其特征在于,所述凹部(14)邻近其外端向外成阶梯状(15),以接纳所述保持环(23)。
6.根据权利要求1所述的容器,其特征在于,所述减压阀(7)包括在过压条件下破裂的破裂元件(21)。
7.根据权利要求6所述的容器,其特征在于,所述破裂元件(21)抵靠环形密封件(20)保持,所述环形密封件抵靠阀座(14A)保持。
8.根据权利要求7所述的容器,其特征在于,所述破裂元件(21)通过环形密封件载体(22)抵靠所述环形密封件(20)保持。
9.根据权利要求1所述的容器,其特征在于,所述减压阀(7)包括密封元件(30),所述密封元件通过弹簧加载(33)抵靠阀座(14A)。
10.根据权利要求9所述的容器,其特征在于,所述密封元件(30)保持在密封件载体(31)内。
11.根据权利要求10所述的容器,其特征在于,所述减压阀(7)包括在保持环(32)和所述密封件载体(31)之间作用的压缩弹簧(33)。
12.根据权利要求1所述的容器,其特征在于,所述封闭件(6)适于接合所述减压阀(7),使得所述封闭件的移除使所述减压阀打开,以使所述容器减压。
13.根据权利要求1所述的容器,其特征在于,所述减压阀(7)通过保持环(23,32)保持在凹部(14)中,并且所述封闭件(6)适于接合所述保持环,使得所述保持环与所述封闭件一起被移除。
14.根据权利要求1所述的容器,其特征在于,所述减压阀(7)位于所述封闭件(4)内,并且所述封闭件包括进入孔(50),工具可以通过所述进入孔插入,以打开所述减压阀。
15.根据权利要求1所述的容器,其特征在于,包含可通过所述容器的颈部中的配件(61)填充的柔性袋(60),并且所述配件设置有附加的减压阀(62),以从所述袋向所述容器的所述配件和所述颈部之间的空间(64)排气。
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GB1406185.7A GB2524843B (en) | 2014-04-04 | 2014-04-04 | Pressurised container with pressure relief valve |
PCT/GB2015/051051 WO2015150833A1 (en) | 2014-04-04 | 2015-04-02 | Pressurised container with pressure relief valve |
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US (1) | US20170183137A1 (zh) |
EP (1) | EP3126255B1 (zh) |
CN (1) | CN106414255A (zh) |
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CN110234580A (zh) * | 2017-02-28 | 2019-09-13 | 宝洁公司 | 具有安全阀的气溶胶分配器 |
CN112549778A (zh) * | 2017-03-01 | 2021-03-26 | 精工爱普生株式会社 | 瓶组件 |
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US10486891B2 (en) | 2016-12-02 | 2019-11-26 | S.C. Johnson & Son, Inc. | Plastic bottle for a pressurized dispensing system |
US10518961B2 (en) | 2017-11-06 | 2019-12-31 | The Procter & Gamble Company | Aerosol dispenser with improved neck geometry outer container therefor and preform therefor |
US10640284B2 (en) * | 2017-11-06 | 2020-05-05 | The Procter & Gamble Company | Aerosol dispenser with vented valve cup and valve cup therefor |
US10589921B2 (en) | 2017-11-06 | 2020-03-17 | The Procter & Gamble Company | Aerosol dispenser with integral vent outer container therefor and preform therefor |
US10414568B2 (en) | 2017-11-20 | 2019-09-17 | The Procter & Gamble Company | Aerosol dispenser with polygonal crimp ring outer container therefor and preform therefor |
RU180062U1 (ru) * | 2017-11-23 | 2018-05-31 | Сергей Владимирович Князев | Кег с фитингом |
US10894657B2 (en) | 2018-01-03 | 2021-01-19 | The Procter & Gamble Company | Divergently vented aerosol dispenser outer container therefor and preform therefor |
RU186636U1 (ru) * | 2018-09-03 | 2019-01-28 | Сергей Владимирович Князев | Заготовка для производства устройства хранения, транспортировки и выдачи напитка |
GB2578882A (en) * | 2018-11-09 | 2020-06-03 | Polykeg S R L | Bag-in-keg container with low pressure PRV |
GB2578883B (en) | 2018-11-09 | 2022-07-13 | Polykeg S R L | Bag-in-keg container with fixed pressure PRV |
FR3094971B1 (fr) | 2019-04-11 | 2022-07-22 | Inospray | Dispositif porte valve pour recharge a poche, recharge a poche et boitier distributeur rechargeable le comprenant |
US11591151B2 (en) | 2021-07-02 | 2023-02-28 | Owens-Brockway Glass Container Inc. | Pressure relief blow-out plugs and related packages |
WO2023018881A2 (en) | 2021-08-12 | 2023-02-16 | Owens-Brockway Glass Container Inc. | Producing holes in glass containers |
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Also Published As
Publication number | Publication date |
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GB2524843B (en) | 2018-12-19 |
EP3126255B1 (en) | 2022-05-11 |
EP3126255A1 (en) | 2017-02-08 |
RU2016143339A (ru) | 2018-05-08 |
GB201406185D0 (en) | 2014-05-21 |
GB2524843A (en) | 2015-10-07 |
US20170183137A1 (en) | 2017-06-29 |
WO2015150833A1 (en) | 2015-10-08 |
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