CN105923281A - 自吸泵压式包装瓶 - Google Patents

自吸泵压式包装瓶 Download PDF

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Publication number
CN105923281A
CN105923281A CN201610517732.7A CN201610517732A CN105923281A CN 105923281 A CN105923281 A CN 105923281A CN 201610517732 A CN201610517732 A CN 201610517732A CN 105923281 A CN105923281 A CN 105923281A
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self
bottle
pressure type
pumping pressure
packaging bottle
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黄益新
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SHANGHAI JIENUODE PLASTIC PRODUCTS CO Ltd
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SHANGHAI JIENUODE PLASTIC PRODUCTS CO Ltd
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Publication of CN105923281A publication Critical patent/CN105923281A/zh
Priority to US15/602,180 priority Critical patent/US10138028B2/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D35/00—Pliable tubular containers adapted to be permanently or temporarily deformed to expel contents, e.g. collapsible tubes for toothpaste or other plastic or semi-liquid material; Holders therefor
    • B65D35/44—Closures
    • B65D35/46—Closures with valves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/0005—Containers or packages provided with a piston or with a movable bottom or partition having approximately the same section as the container
    • B65D83/0033—Containers or packages provided with a piston or with a movable bottom or partition having approximately the same section as the container the piston being a follower-piston and the dispensing means comprising a hand-operated pressure-device at the opposite part of the container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-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
    • B05B11/10—Pump 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
    • B05B11/1028—Pumps having a pumping chamber with a deformable wall
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D41/00—Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper
    • B65D41/005—Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper with integral sealing means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-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
    • B05B11/10—Pump 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
    • B05B11/1042—Components or details
    • B05B11/1052—Actuation means
    • B05B11/1053—Actuation means combined with means, other than pressure, for automatically opening a valve during actuation; combined with means for automatically removing closures or covers from the discharge nozzle during actuation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
    • B65D1/02—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents
    • B65D1/0223—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents characterised by shape
    • B65D1/0261—Bottom construction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D35/00—Pliable tubular containers adapted to be permanently or temporarily deformed to expel contents, e.g. collapsible tubes for toothpaste or other plastic or semi-liquid material; Holders therefor
    • B65D35/24—Pliable tubular containers adapted to be permanently or temporarily deformed to expel contents, e.g. collapsible tubes for toothpaste or other plastic or semi-liquid material; Holders therefor with auxiliary devices
    • B65D35/28—Pliable tubular containers adapted to be permanently or temporarily deformed to expel contents, e.g. collapsible tubes for toothpaste or other plastic or semi-liquid material; Holders therefor with auxiliary devices for expelling contents
    • B65D35/30—Pistons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D47/00—Closures with filling and discharging, or with discharging, devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D53/00—Sealing or packing elements; Sealings formed by liquid or plastics material
    • B65D53/04—Discs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/0005—Containers or packages provided with a piston or with a movable bottom or partition having approximately the same section as the container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-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
    • B05B11/02—Membranes or pistons acting on the contents inside the container, e.g. follower pistons
    • B05B11/028—Pistons separating the content remaining in the container from the atmospheric air to compensate underpressure inside the container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-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
    • B05B11/10—Pump 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
    • B05B11/1028—Pumps having a pumping chamber with a deformable wall
    • B05B11/1029—Pumps having a pumping chamber with a deformable wall actuated by a lever
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-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
    • B05B11/10—Pump 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
    • B05B11/1042—Components or details
    • B05B11/1066—Pump inlet valves
    • B05B11/1067—Pump inlet valves actuated by pressure
    • B05B11/1069—Pump inlet valves actuated by pressure the valve being made of a resiliently deformable material or being urged in a closed position by a spring

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Closures For Containers (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)

Abstract

本发明涉及一种自吸泵压式包装瓶，包括筒状瓶体、活塞、上密封副和下密封副，筒状瓶体内自上而下依次为上密封副、下密封副和活塞，上密封副、下密封副和筒状瓶体形成封闭的出料腔，下密封副、活塞和筒状瓶体形成封闭的储料腔；下密封副主要由开有通孔的密封座和覆盖在通孔上的弹性密封片组成；密封座与筒状瓶体联接；上密封副主要由伞形件、空心出料柱、支撑柱和端面密封盖组成，端面密封盖通过支撑柱固定在伞形件内部，空心出料柱下底面、支撑柱和端面密封盖形成出料口，伞形件下端与密封座过盈配合。本发明结构简单，制造成本低，出料稳定，使用方便，实现了包装瓶中物料的自动挤出。

Description

自吸泵压式包装瓶
技术领域
本发明属包装技术领域，涉及一种自吸泵压式包装瓶。
背景技术
随着技术水平和社会的不断进步，生活用品的品种也是日新月异，人们在追求产品品质的同时，对产品的包装提出了更高的要求，它不仅仅是简单的容器，还必须是造型美观、使用方便，目前现有的日用品包装瓶中，使用广泛的是按压式出料的包装瓶，多采用吸管、弹簧、活塞结构，存在的问题是：包装瓶结构复杂、制造成本高。另外，公开号为CN201619795U的发明专利中公开了一种压泵式包装瓶，在该专利的技术方案中由于活塞和瓶体之间配合的气密性问题，会造成活塞不能及时上移，影响出料的稳定性；又如公开号为CN102502060A的发明专利中公开了一种负压式包装瓶，在该专利的技术方案中泵体与瓶体之间连接的不够牢固，在按压过程中容易发生脱落。现有技术中包装瓶的缺陷会严重影响使用效果，影响了产品品质。
发明内容
本发明所要解决的技术问题是提供一种自吸泵压式包装瓶。
为了实现上述目的，本发明采用的技术方案为：
自吸泵压式包装瓶，包括筒状瓶体、活塞、上密封副和下密封副，所述活塞安装在筒状瓶体内的下部，所述上密封副固定在筒状瓶体内的上部，所述下密封副固定在筒状瓶体内的介于所述活塞与所述上密封副之间的中部；所述上密封副、所述下密封副和所述筒状瓶体形成封闭的出料腔，所述下密封副、所述活塞和所述筒状瓶体形成封闭的储料腔；
所述下密封副主要由密封座和弹性密封片组成，所述密封座上开有连通出料腔和储料腔的通孔，所述弹性密封片覆盖在所述通孔的出料腔的一侧；所述密封座与所述筒状瓶体联接；
所述上密封副主要由伞形件、空心出料柱、支撑柱和端面密封盖组成，所述端面密封盖通过支撑柱固定在伞形件内部，所述空心出料柱外壁紧贴支撑柱从伞形件上端开口向内延伸，所述空心出料柱下底面、支撑柱和端面密封盖形成出料口，所述伞形件下端与密封座过盈配合；
原始状态下，按键上表面连接的出料管盖盖在出料管管口上，上密封副中，伞形件内端面密封盖与出料管的底面处于紧密贴合状态，出料口被堵塞，下密封副中，弹性密封片自然贴合在密封座中的通孔上，储料腔与出料腔处于分隔状态；
使用过程中，当按下泵头中的按键时，按键上表面连接的出料管盖打开，施加的压力通过按键作用于伞形件，伞形件沿受力方向发生形变，引起伞形件端面密封盖下移，出料管底面与端面密封盖由紧密贴合状态变为分离状态，出料口被打开，出料腔中的物料经出料口、空心出料柱和出料管挤出，同时，伞形件的形变引起弹性密封片中的封片向下移动，对密封座中的通孔进行密封，使得储料腔与出料腔分隔；
松开按键时，出料管盖重新盖在出料管管口处，伞形件受到的挤压作用消除，发生形变回复，伞形件向上移动，出料管底面与端面密封盖重新贴合，将出料口堵塞，此时，出料腔产生负压，引起弹性密封片中的封片向上移动，密封座中的通孔被打开，物料由储料腔经通孔进入出料腔，在此过程中活塞随着物料的移动而上移，当储料腔与出料腔中的气压达到平衡状态时，活塞停止移动，静置一段时间后，弹性密封片中的封片在连接条的拉扯作用下归位，弹性密封片自然贴合在密封座上，整个装置回复到原始状态。
作为优选的技术方案：
如上所述的自吸泵压式包装瓶，所述筒状瓶体为圆筒形的瓶体；所述活塞的外周为截面呈腰形的密封件，所述活塞与所述筒状瓶体内壁紧密贴合。
如上所述的自吸泵压式包装瓶，所述弹性密封片由环形圈、位于环形圈正中间的封片以及连接环形圈与封片的连接条构成，所述环形圈、所述封片和所述连接条成一体；所述封片的厚度小于所述环形圈的厚度。
如上所述的自吸泵压式包装瓶，所述环形圈的实体截面为矩形；所述封片为圆形片；所述连接条为弧形带状，其弧形半径比所述封片的圆半径大2-5mm，所述连接条与所述封片的连接处为一折弯。
如上所述的自吸泵压式包装瓶，所述密封座内设有环形内凹台阶；所述弹性密封片中的环形圈固定在密封座中；所述密封座上的通孔位于正中间，所述弹性密封片的封片位于正中间，封片尺寸大于通孔尺寸；所述联接是指过盈配合或固定连接；所述密封座与所述筒状瓶体还可以一次性注塑成型成一体。
如上所述的自吸泵压式包装瓶，所述伞形件为弹性体；所述伞形件上部为空心圆柱结构，下部为伞状结构；所述伞状结构的伞面顶部设有3条以上卡筋条。
如上所述的自吸泵压式包装瓶，所述空心出料柱的柱高小于支撑柱的长度；所述支撑柱为均布的四根立柱，每根立柱的一端连接所述端面密封盖，另一端连接所述伞形件上端开口；所述伞形件、空心出料柱、支撑柱和端面密封盖为一体式结构。
如上所述的自吸泵压式包装瓶，所述伞形件下端与密封座过盈配合是指所述伞形件下端开口的边沿与所述密封座内的环形内凹台阶过盈配合。
如上所述的自吸泵压式包装瓶，所述自吸泵压式包装瓶还包括泵头，所述泵头含有按键和出料管；所述按键上表面连接出料管盖，所述出料管盖盖在所述出料管管口处；所述出料管与所述空心出料柱连接，所述出料管的外径与所述空心出料柱的内径相同。
如上所述的自吸泵压式包装瓶，所述自吸泵压式包装瓶的瓶底设有底座，所述底座上设有1个以上连接包装瓶与大气的通孔；所述底座与所述筒状瓶体为过盈配合、螺纹连接或一次性注塑成型成一体。
有益效果
1)本发明的结构简单，制造成本低，实现了物料的自动挤出，使用方便；
2)本发明中各部件之间紧凑可靠，保证出料能够稳定进行；
3)本发明中各部件之间连接牢固，在使用过程中不容易发生脱落；
4)本发明外观美观，应用领域非常广泛。
附图说明
图1为本发明整体结构组装示意图；
图2为本发明整体结构拆分示意图；
图3为本发明原始状态部分结构示意图；
图4为本发明按下状态部分结构示意图；
图5为本发明松开状态部分结构示意图；
图6为本发明中上密封副剖开结构示意图；
图7为本发明中上密封副剖面结构示意图；
图8为本发明中上密封副俯视图；
图9为本发明中下密封副拆分结构示意图；
图10为本发明中下密封副组装结构的剖面示意图；
图11为本发明中弹性密封片的结构示意图；
图12为本发明中活塞的结构示意图；
图13为本发明中活塞的倒立结构示意图；
图14为本发明中活塞的主视图；
图15为本发明中活塞的俯视图；
其中，1-筒状瓶体，2-底座，3-活塞，4-密封座，4.1-环形内凹台阶，4.2-通孔，5-弹性密封片，5.1-环形圈，5.2-封片，5.3-连接条，6-伞形件，7-泵头，8-按键，9-出料管，10-空心出料柱，11-支撑柱，12-端面密封盖。
具体实施方式
下面结合具体实施方式，进一步阐述本发明。应理解，这些实施例仅用于说明本发明而不用于限制本发明的范围。此外应理解，在阅读了本发明讲授的内容之后，本领域技术人员可以对本发明作各种改动或修改，这些等价形式同样落于本申请所附权利要求书所限定的范围。
一种自吸泵压式包装瓶(如图1和图2所示)，包括筒状瓶体1、活塞3(如图12-15所示)、泵头7、底座2、上密封副(如图6-8所示)和下密封副(如图9-10所示)，活塞3安装在筒状瓶体1内的下部，活塞3的外周为截面呈腰形的密封件，活塞3与筒状瓶体1的内壁紧密贴合，上密封副固定在筒状瓶体1内的上部，下密封副固定在筒状瓶体1内的介于活塞3与上密封副之间的中部；上密封副、下密封副和筒状瓶体1形成封闭的出料腔，下密封副、活塞3和筒状瓶体1形成封闭的储料腔；泵头7含有按键8和出料管9，按键8上表面连接出料管9盖，出料管9盖盖在出料管9管口处，出料管9与空心出料柱10连接，出料管9的外径与空心出料柱10的内径相同；底座2上设有2个连接包装瓶与大气的通孔4.2；
下密封副主要由密封座4和弹性密封片5(如图11所示)组成，密封座4内设有环形内凹台阶4.1，密封座4上开有连通出料腔和储料腔的位于正中间的通孔4.2，位于正中间的弹性密封片5覆盖在通孔4.2的出料腔的一侧，封片5.2尺寸大于通孔4.2尺寸；密封座4与筒状瓶体1固定连接；弹性密封片5由实体截面为矩形的环形圈5.1、位于环形圈5.1正中间的圆形片状封片5.2以及连接环形圈5.1与封片5.2的弧形带状连接条5.3构成，连接条5.3的弧形半径比封片5.2的圆半径大2mm，环形圈5.1、封片5.2和连接条5.3成一体，连接条5.3与封片5.2的连接处为一折弯，封片5.2的厚度小于环形圈5.1的厚度；
上密封副主要由伞形件6、空心出料柱10、支撑柱11和端面密封盖12组成，端面密封盖12通过支撑柱11固定在伞形件6内部，空心出料柱10外壁紧贴支撑柱11从伞形件6上端开口向内延伸，空心出料柱10下底面、支撑柱11和端面密封盖12形成出料口，伞形件6下端开口的边沿与密封座4内的环形内凹台阶4.1过盈配合；伞形件6为弹性体，上部为空心圆柱结构，下部为伞状结构，伞状结构的伞面顶部设有3条卡筋条，空心出料柱10的柱高小于支撑柱11的长度，支撑柱11为均布的四根立柱，每根立柱的一端连接端面密封盖12，另一端连接伞形件6上端开口，伞形件6、空心出料柱10、支撑柱11和端面密封盖12为一体式结构；
如图3所示，原始状态下，按键8上表面连接的出料管9盖盖在出料管9管口上，上密封副中，伞形件6内端面密封盖12与出料管9的底面处于紧密贴合状态，出料口被堵塞，下密封副中，弹性密封片5自然贴合在密封座4中的通孔4.2上，储料腔与出料腔处于分隔状态；
如图4所示，使用过程中，当按下泵头7中的按键8时，按键8上表面连接的出料管9盖打开，施加的压力通过按键8作用于伞形件6，伞形件6沿受力方向发生形变，引起伞形件6端面密封盖12下移，出料管9底面与端面密封盖12由紧密贴合状态变为分离状态，出料口被打开，出料腔中的物料经出料口、空心出料柱10和出料管9挤出，同时，伞形件6的形变引起弹性密封片5中的封片5.2向下移动，对密封座4中的通孔4.2进行密封，使得储料腔与出料腔分隔；
如图5所示，松开按键8时，出料管9盖重新盖在出料管9管口处，伞形件6受到的挤压作用消除，发生形变回复，伞形件6向上移动，出料管9底面与端面密封盖12重新贴合，将出料口堵塞，此时，出料腔产生负压，引起弹性密封片5中的封片5.2向上移动，密封座4中的通孔4.2被打开，物料由储料腔经通孔4.2进入出料腔，在此过程中活塞3随着物料的移动而上移，当储料腔与出料腔中的气压达到平衡状态时，活塞3停止移动，静置一段时间后，弹性密封片5中的封片5.2在连接条5.3的拉扯作用下归位，弹性密封片5自然贴合在密封座4上，整个装置回复到原始状态。

Claims (10)

1.自吸泵压式包装瓶，其特征是：包括筒状瓶体、活塞、上密封副和下密封副，所述活塞安装在筒状瓶体内的下部，所述上密封副固定在筒状瓶体内的上部，所述下密封副固定在筒状瓶体内的介于所述活塞与所述上密封副之间的中部；所述上密封副、所述下密封副和所述筒状瓶体形成封闭的出料腔，所述下密封副、所述活塞和所述筒状瓶体形成封闭的储料腔；
所述下密封副主要由密封座和弹性密封片组成，所述密封座上开有连通出料腔和储料腔的通孔，所述弹性密封片覆盖在所述通孔的出料腔的一侧；所述密封座与所述筒状瓶体联接；
所述上密封副主要由伞形件、空心出料柱、支撑柱和端面密封盖组成，所述端面密封盖通过支撑柱固定在伞形件内部，所述空心出料柱外壁紧贴支撑柱从伞形件上端开口向内延伸，所述空心出料柱下底面、支撑柱和端面密封盖形成出料口，所述伞形件下端与密封座过盈配合。
2.根据权利要求1所述的自吸泵压式包装瓶，其特征在于，所述筒状瓶体为圆筒形的瓶体；所述活塞的外周为截面呈腰形的密封件，所述活塞与所述筒状瓶体内壁紧密贴合。
3.根据权利要求1所述的自吸泵压式包装瓶，其特征在于，所述弹性密封片由环形圈、位于环形圈正中间的封片以及连接环形圈与封片的连接条构成，所述环形圈、所述封片和所述连接条成一体；所述封片的厚度小于所述环形圈的厚度。
4.根据权利要求3所述的自吸泵压式包装瓶，其特征在于，所述环形圈的实体截面为矩形；所述封片为圆形片；所述连接条为弧形带状，其弧形半径比所述封片的圆半径大2-5mm，所述连接条与所述封片的连接处为一折弯。
5.根据权利要求1所述的自吸泵压式包装瓶，其特征在于，所述密封座内设有环形内凹台阶；所述弹性密封片中的环形圈固定在密封座中；所述密封座上的通孔位于正中间，所述弹性密封片的封片位于正中间，封片尺寸大于通孔尺寸；所述联接是指过盈配合或固定连接。
6.根据权利要求1所述的自吸泵压式包装瓶，其特征在于，所述伞形件为弹性体；所述伞形件上部为空心圆柱结构，下部为伞状结构；所述伞状结构的伞面顶部设有3条以上卡筋条。
7.根据权利要求1所述的自吸泵压式包装瓶，其特征在于，所述空心出料柱的柱高小于支撑柱的长度；所述支撑柱为均布的四根立柱，每根立柱的一端连接所述端面密封盖，另一端连接所述伞形件上端开口；所述伞形件、空心出料柱、支撑柱和端面密封盖为一体式结构。
8.根据权利要求1所述的自吸泵压式包装瓶，其特征在于，所述伞形件下端与密封座过盈配合是指所述伞形件下端开口的边沿与所述密封座内的环形内凹台阶过盈配合。
9.根据权利要求1所述的自吸泵压式包装瓶，其特征在于，所述自吸泵压式包装瓶还包括泵头，所述泵头含有按键和出料管；所述按键上表面连接出料管盖，所述出料管盖盖在所述出料管管口处；所述出料管与所述空心出料柱连接，所述出料管的外径与所述空心出料柱的内径相同。
10.根据权利要求1所述的自吸泵压式包装瓶，其特征在于，所述自吸泵压式包装瓶的瓶底设有底座，所述底座上设有1个以上连接包装瓶与大气的通孔。
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