CN1084645C - 泵塞上锁喷洒装置 - Google Patents

泵塞上锁喷洒装置 Download PDF

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CN1084645C
CN1084645C CN97104294A CN97104294A CN1084645C CN 1084645 C CN1084645 C CN 1084645C CN 97104294 A CN97104294 A CN 97104294A CN 97104294 A CN97104294 A CN 97104294A CN 1084645 C CN1084645 C CN 1084645C
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pump
wall
projection
dog
plug
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CN1167215A (zh
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汉斯·格罗索夫
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Silgan Dispensing Systems Corp
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Calmar Inc
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1001Piston pumps
    • B05B11/1023Piston pumps having an outlet valve opened by deformation or displacement of the piston relative to its actuating stem
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1042Components or details
    • B05B11/1059Means for locking a pump or its actuation means in a fixed position
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1042Components or details
    • B05B11/1043Sealing or attachment arrangements between pump and container
    • B05B11/1046Sealing or attachment arrangements between pump and container the pump chamber being arranged substantially coaxially to the neck of the container
    • B05B11/1047Sealing or attachment arrangements between pump and container the pump chamber being arranged substantially coaxially to the neck of the container the pump being preassembled as an independent unit before being mounted on the container

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  • Closures For Containers (AREA)
  • Reciprocating Pumps (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Devices For Dispensing Beverages (AREA)

Abstract

一种泵式喷洒装置,其具有泵塞上锁特性,其中,在活塞杆上的搁架凸块顶靠着一锁定套筒的顶肩,该套筒固定在喷洒装置的泵体之内,由此稳固地保持住泵塞而防止其错置。泵体可为带有容器封盖的整体式结构,容器通气孔由一个在活塞杯体上的直立套控制,而保持活塞密封的完整性。

Description

泵塞上锁喷洒装置
(一)技术领域:
发明本总体上涉及一种泵式喷洒装置,其零部件较少,它具有包含着一个泄放喷嘴的泵塞,后者受到上位锁定,以防来运输和储存期间发生泄露,且起防止小孩乱玩和安全作用。
(二)背景技术:
现有技术的许多泵式喷洒装置具有各种型式和结构的上锁和/或下锁特性。这种锁定泵塞式喷洒装置有许多可在纵向延伸的棱筋和槽之间相对旋转,而实现泵塞在不工作和工作位置时棱筋和槽之间的错开和对准状态。然而,现有技术的喷洒装置有许多需要单独且可转动的锁环(lock collar)来实现棱筋和槽之间的对准和错置,因而需要至少一个另加的模塑件而增加了喷洒装置的成本。
美国专利4,162,746公开了一种具有一上锁的泵塞的喷洒装置,其需要一个呈一环状套筒的可转动锁环,来使活塞杆上的棱筋与锁环内壁上的槽相对准或错置。
美国专利3,489,322公开了另一种泵塞上锁的喷洒装置,其不需要锁环,而是通过泵塞头的相对转动来实现棱筋和槽的对准和错置。然而,泄放喷嘴不是做成泵塞头的一部分,而是做在一个与容器封盖咬合在一起的单独件之上,从而明显增加了包装的成本。
此外,这些或其他已知的泵塞上锁喷洒装置不是稳固地保持在锁定位置,一旦从错置位置略微往回移动一点,无意中就会使泵塞头打开工作。这样,即使使用者已把泵塞锁定到位之后,如果喷洒装置封装掉落或受到轻推,液体产品也易于从喷嘴中泄漏。而且,若不能稳固地锁住,年幼的儿童就能迅速地想出办法来放开泵塞,要么弄得乱糟糟的一片,要么造成危险。
许多泵式喷洒装置在活塞和活塞杆之间有无效行程,后者是空心的且具有侧向泄放口,在按动泵塞时,一旦活塞杆相对位移这些泄放口就会被打开。通常,在泵筒中工作的活塞杯体的上密封在泵塞休置状态时关闭住一容器通气通道。活塞杯体以这样方式来打开和关闭容器通气通道是不希望的,因为这样会损坏密封而引起泄漏。
(三)发明内容:
因而,本发明的一个目的是提供一种带有一泵塞的泵式喷洒装置,该泵塞具有一个喷嘴,该喷洒装置制造和安装成本低,与该类现有的喷洒装置相比其需要的零部件数目少,防止泄漏且具有一种泵塞上锁特性,该特性具有稳固锁定,不能轻易地打开到一泵塞头的工作位置。
本发明提供一种用于液体的泵式喷洒装置,其包括:一带有一个容器封盖的泵体;一个固定安装在所述泵体上的锁定套筒;一个具有一泄放喷口的手动泵塞,它可绕其一中心轴线沿两个相反方向转动,且穿过所述封盖和套筒上的同轴开孔,它还设置成在下降位置和弹簧偏压的顶高位置之间作往复运动;所述锁定套筒具有至少一个位于垂直于所述轴线的平面内的角形壁、至少一个在所述壁的一端处的直立限位止动部和至少一个在所述壁的相反端处的纵长槽及一个邻近所述槽在所述壁上的凸爪,在所述凸爪和所述止动部之间的所述壁形成一个顶肩;所述泵塞具有至少一个径向延伸的凸块,该凸块在所述活塞环绕所述轴线的一个转动位置处与所述顶肩相啮合,而把所述泵塞锁定在所述顶高位置上,此时,所述凸块处在所述凸爪和所述限位止动部之间的一搁架位置之中而把所述泵塞稳固地保持在所述的一个转动位置处,一旦所述泵塞环绕所述轴线转动到与所述一个转动位置相反的另一转动位置来把所述泵塞打开而可进行往复运动,所述凸块沿所述凸爪滑动并与所述槽对准。
泵体和容器封盖可以是整件模塑结构,从而最大限度地减少了泵塞所需的零部件数目。
一个空心活塞杆固定到泵塞上并穿过一个活塞杯体,活塞杆在压动泵塞时做相对运动而打开侧面泄放口进行泄放。一个活塞杯体上的内部直立套在泵塞的休止位置上靠着锁定套筒的下缘而密封关闭着一容器通气通道。
(四)附图说明:
下面将参照附图详述本发明,由此本发明的其他目的、优点和新颖特征就会更易于理解。
图1是本发明的泵式喷洒装置的分解透视图;
图2是图1中零部件组装在一起的泵式喷洒装置的竖直剖视图;
图3是沿图2中的3-3线的剖视图,泵塞在其工作位置;
图4是类似于图3的视图,泵塞在其不工作的上锁位置;及
图5是泵塞头的顶视图,表示其在打开和关闭位置之间的相对转动。
(五)具体实施方式:
现在参考附图,在几个附图中相同标号表示相同或相应的部件,本发明的泵式喷洒装置在图1和2中总体上由标号10代表,其具有一接口11,后者可以是整体模塑的结构而形成一泵体12和一容器封盖13。该封盖具有内螺纹14,用来和一容器(未示)的瓶颈上的外螺纹啮合,而将喷洒装置安装到位。为了美观起见,在封盖周围设置一外部裙围15。
泵体包括上、下筒部16和17,后者的直径略小并形成一泵筒。
一个锁定套筒18固定在泵体的上筒部16内,例如,这是通过在一个该套筒的环状法兰19和一个与上筒部16连成一体的环状棱边21之间的咬合作用来实现的。通过径向微凸22(图1)与沿着上筒部16内侧延伸的纵向槽23相配合而阻止该套筒绕其中心轴线相对运动。
喷洒装置的泵塞头24有一个光滑的轮廓外表面25,其为操作者的手指或手掌提供一个光滑的接触表面。泵塞头具有一个整体形成的喷嘴26,后者联通着一个确定一泄放通道28的空心活塞杆27。
例如,通过提供一咬合凸棱29,来把活塞杆牢牢地固定到泵塞头上,若干在活塞杆上纵向延伸的棱筋31与泵塞头上的套32的配对槽相啮合,以防止所述部件环绕其中心轴线相对转动。
锁定套筒的一下部33的内径大致等于活塞杆的外径,并在其表面具有一个或多个形成一通气通道的纵向槽34。
活塞杆的下端在35处收缩而形成一环肩36。在该收缩部的壁上设置了一个或多个泄放口37,该收缩部穿过一活塞杯体38的中心开孔。
在收缩部35上的一环状凸棱39与活塞泵体上的一内环状凸缘41相啮合,该活塞杯体在图2所示的泵塞休止位置盖住泄放口37而阻止泄放。
该活塞杯体具有一个下人字形密封42来与泵筒的壁密封配合,还有一个上人字形密封43,同样也与泵筒的壁密封配合。
一活塞复位弹簧44位于环棱39和弹簧对中棱圈46的肩部45之间,该棱圈46在泵体的喉部47之中并内装一入口止回球阀48,在图中其与阀座49啮合。一个连接到从喉部47上伸出的嘴头52的汲管51伸进容器(未示)之中。棱圈46和复位弹簧的最下面一圈为止回球阀形成一个球笼。
在图2所示的泵塞休止位置处,环肩36与凸缘41轴向间隔一预定的距离,从而,一旦按压泵塞头,活塞杆就相对于活塞杯体位移,而使泄放口37暴露于泵室53的产品之中,由此,连续不断地按压泵塞头就使活塞在其泵筒中往复运动,给泵室中的液体产品加压,而迫使其通过泄放口、泄放通道28和喷嘴排放到外面,这种方式已为人所知。一旦消除施加到泵塞头上向下的手动力,复位弹簧就使活塞杆相对于活塞返回其图2所示位置而关闭泄放口,并使活塞返回其图2所示位置,一旦泵室的体积膨胀,其中相应的压力降就通过汲管和离开座的入口止回球阀把产品从容器中吸入泵室之中。
从容器中排出的产品必须由空气来填补,以防液压锁死(hydrauliclock)和容器塌陷。为此目的,泵塞休止状态时在人字形密封43上方的泵筒17的壁上设有一容器通气口54。一个在活塞上的内部直立套55啮合着锁定套筒下部33的下侧,且其内径基本上等于活塞杆的外径,以便在图2所示的闭合位置密封住通气槽34。还有,在泵塞休止位置,直立套55在环肩36和凸缘41之间保持有轴向间隔。
因而,一旦泵塞下压足够距离而使活塞在其泵筒内向里移动,通气槽34打开而通过通气口54建立一个从容器内部到大气中的通气通道。而且,通过使活塞柱体的人字形密封远离通气口54而壁免滑动接触,这就避免活塞密封造成划痕。另外,活塞密封的任一部分都不接触锁定套筒或任何其他组件,而使通气槽在泵塞休止位置保持闭合,这与现有技术是相同的。从而,就使有些精密的活塞密封免于损坏或划伤,否则,这会引起泄漏。
本发明的泵塞上锁特性是通过提供一对相对的角形壁56来实现的,该角形壁位于垂直于套筒18的中心轴线的一平面内。一个具有一纵向延伸缘58的直立限位止动部57位于各个角形壁56的一端;在各角形壁的另一端设有一纵向延伸槽59,在各槽59邻近处在角形壁56上设置一个凸爪60,它与纵向延长缘58隔开而限定角形壁56来作为一个顶肩。
活塞杆具有两个相对凸块61,一旦泵塞头相对于锁定套筒转动,则其用于配合槽59或与其解离配合。
这样,在操作中,一旦泵塞头按图5所示的“打开”箭头方向转动,凸块61就与槽59(如图3所示)对准,允许泵塞头在操作位置做不受阻碍的往复运动,从而以已知的方式将产品从充满的泵室中喷洒出来。
如图2所示,在泵塞向上行程的终点处,若要把泵塞锁定在其上部不工作的位置而防止其往复运动,仅须按图5所示与“打开”箭头方向相反的“关闭”箭头方向环绕其中心轴线转动90°角,则凸块61越过凸爪60而啮合住肩部56(图4),由限位止动部的纵向延长缘58限定住凸块的圆周运动。这样,纵向延长缘58和凸爪60对凸块51就起到搁架作用,凸爪在复位弹簧的作用下而把凸块稳固地保持在位。在“打开”方向轻推泵塞不会克服由凸爪设定的稳固定位。即便是喷洒装置封装系统从某处掉下,由于本发明的稳固定位特性,也不可能使泵塞头旋到其打开位置。
而且,在使凸块61从与槽59对准的位置周向移动到顶靠着顶肩的一搁架位置的过程中,操作者能够感觉到凸块在凸爪附近的轨迹运动,从而,凸爪就为操作者提供一种指示功能。
当泵塞头按其“关闭”箭头方向环绕轴线转动时,操作者易于克服由凸爪形成的阻力,直到凸块到槽59对齐。在这样的对齐位置,凸块61顶接着限位止动部的与纵向延长缘58相对的纵长缘62,从而防止凸块61跨越过槽59。
从前述可以看出,根据本发明提供了一种简单、经济、高效且允许泵塞稳固上锁的泵式喷洒装置,限制了喷洒装置所需的零部件数目,保持了活塞杯体。
显然,根据上述说明可进行许多其他变化和改进,例如,锁定套筒可包括一单个顶肩、凸爪和限位止动部及和一单个凸块61相配合的槽,这也不脱离本发明。因而,可以理解,在权利要求的范围内,可以不按前面具体描述的那样施使。

Claims (2)

1.一种用于液体的泵式喷洒装置,其包括:一带有一个容器封盖的泵体;一个固定安装在所述泵体上的锁定套筒;一个具有一泄放喷口的手动泵塞,它可绕其一中心轴线沿两个相反方向转动,且穿过所述封盖和套筒上的同轴开孔,它还设置成在下降位置和弹簧偏压的顶高位置之间作往复运动;所述锁定套筒具有至少一个位于垂直于所述轴线的平面内的角形壁、一个在所述壁的一端处的限位止动部和一个在所述壁的相反端处的纵长槽及一个在所述锁定套筒上的锁定凸爪,所述壁形成一个顶肩;所述泵塞具有至少一个径向延伸的凸块,该凸块在所述活塞环绕所述轴线的一个转动位置处与所述顶肩相啮合,而把所述泵塞锁定在所述顶高位置上,其特征在于,所述锁定凸爪与所述纵长槽并列,所述锁定凸爪从所述角形壁上直立起来且其位置高于角形壁,所述顶肩则限定在所述直立的锁定凸爪和所述限位止动部之间而形成一个用于所述凸块的搁架,以便把所述泵塞稳固地保持在所述的一个转动位置处,一旦所述泵塞环绕所述轴线转动到与所述一个转动位置相反的另一转动位置,所述凸块随之沿所述凸爪的上表面滑动到与所述纵长槽对准来把所述泵塞打开而可进行往复运动。
2.如权利要求1所述的喷洒装置,其特征在于,所述锁定套筒具有一对位于所述平面中的周向相互隔开的角形壁、分别在各个所述壁的一端处的直立限位止动部和分别在各个所述壁的相反端处的纵长槽及分别邻近所述槽在各个所述壁上的凸爪,在所述凸爪和所述止动部之间的所述壁形成一对顶肩;所述泵塞具有一对周向相互隔开的径向延伸的凸块,该凸块在所述一个转动位置处与所述顶肩相啮合。
CN97104294A 1996-05-31 1997-05-20 泵塞上锁喷洒装置 Expired - Fee Related CN1084645C (zh)

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US08/655923 1996-05-31
US08/655,923 US5615806A (en) 1996-05-31 1996-05-31 Plunger lock-up dispenser

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CN1167215A CN1167215A (zh) 1997-12-10
CN1084645C true CN1084645C (zh) 2002-05-15

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CA (1) CA2205857C (zh)
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PL182348B1 (pl) 2001-12-31
HK1002267A1 (en) 1998-08-14
PL320242A1 (en) 1997-12-08
HUP9700788A3 (en) 1998-06-29
CN1167215A (zh) 1997-12-10
AU2355697A (en) 1997-12-04
JP3263921B2 (ja) 2002-03-11
EP0810037A3 (en) 1998-04-08
AU716595B2 (en) 2000-03-02
CA2205857A1 (en) 1997-11-30
HUP9700788A2 (hu) 1998-05-28
MX9702781A (es) 1997-11-29
JPH1061544A (ja) 1998-03-03
KR970074640A (ko) 1997-12-10
TW333513B (en) 1998-06-11
US5615806A (en) 1997-04-01
EP0810037A2 (en) 1997-12-03
EP0810037B1 (en) 2003-02-12
BR9700613A (pt) 1998-09-29
CA2205857C (en) 2002-10-22
DE69718965D1 (de) 2003-03-20
HU222272B1 (hu) 2003-05-28
AR001762A1 (es) 1997-12-10
KR100485940B1 (ko) 2005-08-11
DE69718965T2 (de) 2003-08-28
HU9700788D0 (en) 1997-06-30
ES2187723T3 (es) 2003-06-16

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