WO2022052317A1 - 一种带安全出口阀的外置弹簧食品泵 - Google Patents

一种带安全出口阀的外置弹簧食品泵 Download PDF

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WO2022052317A1
WO2022052317A1 PCT/CN2020/130795 CN2020130795W WO2022052317A1 WO 2022052317 A1 WO2022052317 A1 WO 2022052317A1 CN 2020130795 W CN2020130795 W CN 2020130795W WO 2022052317 A1 WO2022052317 A1 WO 2022052317A1
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spring
pump
column
cover
main column
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PCT/CN2020/130795
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English (en)
French (fr)
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梁配辉
朱茂勇
张永雷
梁金考
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中山市美捷时包装制品有限公司
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Priority to CA3169242A priority Critical patent/CA3169242A1/en
Priority to EP20953102.9A priority patent/EP4098579A4/en
Priority to US17/905,371 priority patent/US20230211365A1/en
Publication of WO2022052317A1 publication Critical patent/WO2022052317A1/zh

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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
    • B05B11/1042Components or details
    • B05B11/1059Means for locking a pump or its actuation means in a fixed position
    • B05B11/106Means for locking a pump or its actuation means in a fixed position in a retracted position, e.g. in an end-of-dispensing-stroke 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
    • B05B11/0005Components or details
    • B05B11/0062Outlet valves actuated by the pressure of the fluid to be sprayed
    • B05B11/007Outlet valves actuated by the pressure of the fluid to be sprayed being opened by deformation of a sealing element made of resiliently deformable material, e.g. flaps, skirts, duck-bill valves
    • 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
    • B05B11/1038Pressure accumulation pumps, i.e. pumps comprising a pressure accumulation chamber
    • B05B11/104Pressure accumulation pumps, i.e. pumps comprising a pressure accumulation chamber the outlet valve being opened by pressure after a defined accumulation stroke
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00Check valves
    • F16K15/14Check valves with flexible valve members
    • F16K15/144Check valves with flexible valve members the closure elements being fixed along all or a part of their periphery
    • F16K15/147Check valves with flexible valve members the closure elements being fixed along all or a part of their periphery the closure elements having specially formed slits or being of an elongated easily collapsible form
    • 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
    • B05B11/0005Components or details
    • B05B11/0027Means for neutralising the actuation of the sprayer ; Means for preventing access to the sprayer actuation means
    • B05B11/0032Manually actuated means located downstream the discharge nozzle for closing or covering it, e.g. shutters
    • 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
    • B05B11/1043Sealing 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
    • 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
    • B05B11/1066Pump inlet valves
    • B05B11/1067Pump inlet valves actuated by pressure
    • 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
    • B05B11/1073Springs
    • B05B11/1074Springs located outside pump chambers

Definitions

  • the utility model relates to an external spring food pump with a safety outlet valve.
  • an external spring food pump with a safety outlet valve is provided with a concave annular groove on the inner side wall of the cover flange, and the upper end of the pump chamber is provided with an outwardly protruding annular groove.
  • the convex ring that fits closely, and the convex ring and the annular groove have upper and lower pairs.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
  • Reciprocating Pumps (AREA)

Abstract

一种带安全出口阀的外置弹簧食品泵,包括按头(1)、主柱(2)、副柱(3)、活塞(4)、泵室(5)、弹簧(6)和锁瓶盖(8),按头(1)安装在主柱(2)上,主柱(2)设置在泵室(5)内,副柱(3)连接在主柱(2)下端,活塞(4)套设在主柱(2)和副柱(3)外侧,泵室(5)上固定有能将主柱(2)固定在泵室(5)上的锁盖(9),锁盖(9)的上端外侧上设有向外翻出后再向下翻转伸出的盖翻边(91),泵室(5)上端插接固定在盖翻边(91)的内侧上,锁盖(9)上设有向上凸起在盖翻边(91)上方的锁定口(92),锁定口(92)的外侧上设有外螺牙(93),主柱(2)上端设有向外翻出后并向下翻转伸出而套在锁定口(92)外侧的锁定翻边(21),锁定翻边(21)内侧设有与外螺牙(93)螺纹配合的内螺牙(22),则由主柱(2)、副柱(3)、活塞(4)、泵室(5)、弹簧(6)、玻珠(7)和锁盖(9)组成的泵芯可以独立存储和运输,从而根据需要匹配不同按头(1)和锁瓶盖(8),使用灵活。

Description

一种带安全出口阀的外置弹簧食品泵 【技术领域】
本实用新型涉及一种带安全出口阀的外置弹簧食品泵。
【背景技术】
食品安全越来越受到重视,一般的食品泵在开始使用后,其出口都是常开的,泵的内部经出口与外部相通,由于食品的吸引,容易招惹蚊虫等进入而污染料体,并且空气中的灰尘杂质等也会污染料体。
另外现有的食品泵多是采用内置弹簧的结构设计,金属弹簧直接接触料体,容易腐蚀金属弹簧,不够环保。而且食品泵一般都是整体结构,即泵芯、锁瓶盖和按头是组装固定的,在组装的时候通过外锁盖、内锁盖等将锁瓶盖固定在泵芯上,使用不够灵活。
本实用新型就是基于这种情况作出的。
【实用新型内容】
本实用新型目的是克服了现有技术的不足,提供一种带安全出口阀的外置弹簧食品泵,具有结构简单、卫生安全、使用灵活的特点。
本实用新型是通过以下技术方案实现的:
一种带安全出口阀的外置弹簧食品泵,包括按头、主柱、副柱、活塞、泵室、弹簧和锁瓶盖,所述按头安装在主柱上,所述主柱设置在泵室内,所述副柱连接在主柱下端,所述活塞套设在主柱和副柱外侧,所述泵室上固定有能将主柱固定在泵室上的锁盖,所述锁盖的上 端外侧上设有向外翻出后再向下翻转伸出的盖翻边,所述泵室上端插接固定在盖翻边的内侧上,所述锁盖上设有向上凸起在盖翻边上方的锁定口,所述锁定口的外侧上设有外螺牙,所述主柱上端设有向外翻出后并向下翻转伸出而套在锁定口外侧的锁定翻边,所述锁定翻边内侧设有与外螺牙螺纹配合的内螺牙。
如上所述的一种带安全出口阀的外置弹簧食品泵,所述锁定翻边的外径小于盖翻边的外径,所述锁瓶盖的顶板上设有孔径比盖翻边的外径小并在外力作用下能供盖翻边穿过的顶孔,所述泵室的上部设有能从下挡在锁瓶盖的顶板下方并将锁瓶盖的顶板限制在盖翻边的下方的环形挡板,所述泵室和锁瓶盖之前设有位于挡板下方的密封垫。
如上所述的一种带安全出口阀的外置弹簧食品泵,所述锁瓶盖位于顶孔的下边缘上设有朝外的倒角。
如上所述的一种带安全出口阀的外置弹簧食品泵,所述盖翻边的内侧壁上设有内凹的环形槽,所述泵室上端设有向外凸出的并与环形槽紧密贴合的凸环,所述凸环和环形槽有上下两对。
如上所述的一种带安全出口阀的外置弹簧食品泵,所述锁盖上设有插入在泵室中的弹簧腔,所述主柱的外侧上设有位于弹簧腔中的外套筒,所述弹簧设置在外套筒内侧,且弹簧的上端顶压在外套筒的顶部,下端顶压在弹簧腔的底部上,所述主柱从弹簧腔的底部向下伸出,所述副柱和活塞位于弹簧腔的下方,所述弹簧置于料体腔上方并与料体腔隔离开从而避免泵送食品料体时弹簧和料体接触。
如上所述的一种带安全出口阀的外置弹簧食品泵,所述副柱固定 在主柱的下端上,所述副柱和主柱之间留有供液体流入主柱内的通孔,所述主柱的下端插入在活塞的内环上,所述活塞的内环上设有向内凸出而从侧面紧压在主柱外侧的环形密封凸条,所述环形密封凸条下方相距一段距离设有供主柱相对活塞下移一段距离后顶压住的台阶。
如上所述的一种带安全出口阀的外置弹簧食品泵,所述按头的出口处连接有出口朝下的流出头,所述流出头的出口上设有能将该出口关闭的关闭阀。
如上所述的一种带安全出口阀的外置弹簧食品泵,所述关闭阀包括通过软带连接在流出头上并能将流出头的出口盖住的盖帽。
如上所述的一种带安全出口阀的外置弹簧食品泵,所述关闭阀包括弹性鸭嘴头,所述关闭阀上连接有用于将鸭嘴头固定在流出头的出口下方的固定套,所述鸭嘴头位于固定套的内侧,且其具有扁嘴,在按头内部压力变大时扁嘴弹性张开,而在按头内部压力变小时扁嘴在自身弹性作用下弹性恢复闭合。
如上所述的一种带安全出口阀的外置弹簧食品泵,所述按头上设有插接口,所述主柱内侧设有插入插接口中插接固定的插接头。
与现有技术相比,本实用新型有如下优点:
1、本实用新型由主柱、副柱、活塞、泵室、弹簧、玻珠和锁盖组成的泵芯,通过泵室上端与盖翻边插接固定将锁盖固定在泵室上,通过锁定翻边与锁定口螺纹连接将主柱固定在锁盖上,同时将副柱、活塞、弹簧和玻珠限定在泵室内,形成一个可以独立存储和运输 的泵芯,使得泵芯能够作为一个标准组件,以便在后续生产组装过程中能够根据需要匹配不同按头和锁瓶盖,满足不同客户和使用场合的需求,增加使用的更加灵活性,降低产品开发和制造成本。
2、本实用新型通过在锁定口的外侧设置外螺牙,在锁定翻边内侧设置内螺牙,通过旋转主柱使内螺牙螺纹连接在外螺牙上,结构简单,锁定稳定可靠,能有效防止振动导致的松动,利于后端运输和组装生产。
3、本实用新型的弹簧外置,避免泵送食品料体时,弹簧和料体接触,能够避免弹簧锈蚀污染料体,不卫生。
4、本实用新型在为了按头的出口处连接有出口朝下的流出头,所述流出头的出口上设有能将该出口关闭的关闭阀,能够有效防止蚊虫、空气中灰尘杂质等进入而污染料体。
5、本实用新型在流出头的出口下方固定有鸭嘴头,鸭嘴头具有弹性密闭的扁嘴,在按压按头时,食品料体内压大冲开扁嘴而流出,按头弹起后,扁嘴所受内部压力变小,扁嘴能够通过弹性闭合起来,实现自动打开和关闭按头出口。
【附图说明】
下面结合附图对本实用新型的具体实施方式作进一步详细说明,其中:
图1是本实用新型一种带安全出口阀的外置弹簧食品泵的一种实施例的爆炸图;
图2是图1实施例的剖视图;
图3是图2中A处的局部放大图;
图4是本实用新型一种带安全出口阀的外置弹簧食品泵在装瓶后的一种实施例的剖视图;
图5是图4中B处的局部放大图;
图6是鸭嘴头的结构示意图。
【具体实施方式】
下面结合附图对本实用新型作进一步描述:
如图1至图6所示,一种带安全出口阀的外置弹簧食品泵,包括按头1、主柱2、副柱3、活塞4、泵室5、弹簧6、玻珠7和锁瓶盖8,所述按头1安装在主柱2上,所述主柱2设置在泵室5内,所述副柱3连接在主柱2下端,所述活塞4套设在主柱2和副柱3外侧,所述泵室上固定有能将主柱2固定在泵室5上的锁盖9,所述锁盖9的上端外侧上设有向外翻出后再向下翻转伸出的盖翻边91,所述泵室5上端插接固定在盖翻边91的内侧上,所述锁盖9上设有向上凸起在盖翻边91上方的锁定口92,所述锁定口92的外侧上设有外螺牙93,所述主柱2上端设有向外翻出后并向下翻转伸出而套在锁定口92外侧的锁定翻边21,所述锁定翻边21内侧设有与外螺牙93螺纹配合的内螺牙22。
所述按头1上设有插接口16,所述主柱2内侧设有插入插接口16中插接固定的插接头24,所述插接口16和插接头24密封连接。
所述锁定翻边21的外径小于盖翻边91的外径,所述锁瓶盖8的顶板上设有孔径比盖翻边91的外径小并在外力作用下能供盖翻边91 穿过的顶孔81,所述泵室5的上部设有能从下挡在锁瓶盖8的顶板下方并将锁瓶盖8的顶板限制在盖翻边91的下方的环形挡板51,所述泵室5和锁瓶盖8之前设有位于挡板51下方的密封垫10。
为了便于锁瓶盖8套入盖翻边91外侧,所述锁瓶盖8位于顶孔81的下边缘上设有朝外的倒角82。
上述食品泵由主柱2、副柱3、活塞4、泵室5、弹簧6、玻珠7和锁盖9组成的泵芯,通过泵室5上端与盖翻边91插接固定将锁盖9固定在泵室5上,通过锁定翻边21与锁定口92螺纹连接将主柱2固定在锁盖9上,同时将副柱3、活塞4、弹簧6和玻珠7限定在泵室5内,形成一个可以独立存储和运输的泵芯,使得泵芯能够作为一个标准组件,以便在后续生产组装过程中能够根据需要匹配不同按头1和锁瓶盖8,满足不同客户和使用场合的需求,增加使用的更加灵活性,降低产品开发和制造成本。
所述盖翻边91的内侧壁上设有内凹的环形槽94,所述泵室5上端设有向外凸出的并与环形槽94紧密贴合的凸环52,所述凸环52和环形槽94有上下两对,以便连接稳定可靠,密封性好。
如图1至4所示实施例,为了避免弹簧6接触食品料体,所述锁盖9上设有插入在泵室5中的弹簧腔95,所述主柱2的外侧上设有位于弹簧腔95中的外套筒23,所述弹簧6设置在外套筒23内侧,且弹簧6的上端顶压在外套筒23的顶部,下端顶压在弹簧腔95的底部上,所述主柱2从弹簧腔95的底部向下伸出,所述副柱3和活塞4位于弹簧腔95的下方,所述弹簧6设置在外套筒23内侧并位于主 柱2的内通道之外,其置于副柱3和活塞4下方形成的料体腔上方,并与料体腔隔离开,从而将弹簧6外置,可避免泵送食品料体时,弹簧6和料体接触,能够避免料体被腐蚀、污染。
如图1和图2所示,所述副柱3固定在主柱2的下端上,所述副柱3和主柱2之间留有供液体流入主柱2内的通孔31,所述主柱2的下端插入在活塞4的内环41上,所述活塞4的内环41上设有向内凸出而从侧面紧压在主柱2外侧的环形密封凸条42,所述环形密封凸条42下方相距一段距离设有供主柱2相对活塞4下移一段距离后顶压住的台阶43,结构简单。
为了避免蚊虫、空气中灰尘杂质等进入而污染料体,所述按头1的出口处连接有出口朝下的流出头11,所述流出头11的出口上设有能将该出口关闭的关闭阀。
如图1和图2所示,作为关闭阀的一种实施例,所述关闭阀包括通过软带12连接在流出头11上并能将流出头11的出口盖住的盖帽13,在要按压出料时,取下盖帽13,取料结束后盖上盖帽13即可,结构简单,操作方便。
如图4至图6所示,作为关闭阀的一种实施例,所述关闭阀包括弹性鸭嘴头14,所述关闭阀上连接有用于将鸭嘴头14固定在流出头11的出口下方的固定套15,所述鸭嘴头14位于固定套15的内侧,且其具有扁嘴141在按头1内部压力变大时扁嘴141弹性张开,而在按头1内部压力变小时扁嘴141在自身弹性作用下弹性恢复闭合。在按压按头1时,食品料体内压大冲开扁嘴141而流出,按头弹起后, 扁嘴141所受内部压力变小,而通过弹性闭合,实现自动打开和关闭流出头的出口。

Claims (10)

  1. 一种带安全出口阀的外置弹簧食品泵,包括按头(1)、主柱(2)、副柱(3)、活塞(4)、泵室(5)、弹簧(6)和锁瓶盖(8),所述按头(1)安装在主柱(2)上,所述主柱(2)设置在泵室(5)内,所述副柱(3)连接在主柱(2)下端,所述活塞(4)套设在主柱(2)和副柱(3)外侧,其特征在于:所述泵室上固定有能将主柱(2)固定在泵室(5)上的锁盖(9),所述锁盖(9)的上端外侧上设有向外翻出后再向下翻转伸出的盖翻边(91),所述泵室(5)上端插接固定在盖翻边(91)的内侧上,所述锁盖(9)上设有向上凸起在盖翻边(91)上方的锁定口(92),所述锁定口(92)的外侧上设有外螺牙(93),所述主柱(2)上端设有向外翻出后并向下翻转伸出而套在锁定口(92)外侧的锁定翻边(21),所述锁定翻边(21)内侧设有与外螺牙(93)螺纹配合的内螺牙(22)。
  2. 根据权利要求1所述的一种带安全出口阀的外置弹簧食品泵,其特征在于:所述锁定翻边(21)的外径小于盖翻边(91)的外径,所述锁瓶盖(8)的顶板上设有孔径比盖翻边(91)的外径小并在外力作用下能供盖翻边(91)穿过的顶孔(81),所述泵室(5)的上部设有能从下挡在锁瓶盖(8)的顶板下方并将锁瓶盖(8)的顶板限制在盖翻边(91)的下方的环形挡板(51),所述泵室(5)和锁瓶盖(8)之前设有位于挡板(51)下方的密封垫(10)。
  3. 根据权利要求2所述的一种带安全出口阀的外置弹簧食品 泵,其特征在于:所述锁瓶盖(8)位于顶孔(81)的下边缘上设有朝外的倒角(82)。
  4. 根据权利要求1所述的一种带安全出口阀的外置弹簧食品泵,其特征在于:所述盖翻边(91)的内侧壁上设有内凹的环形槽(94),所述泵室(5)上端设有向外凸出的并与环形槽(94)紧密贴合的凸环(52),所述凸环(52)和环形槽(94)有上下两对。
  5. 根据权利要求1所述的一种带安全出口阀的外置弹簧食品泵,其特征在于:所述锁盖(9)上设有插入在泵室(5)中的弹簧腔(95),所述主柱(2)的外侧上设有位于弹簧腔(95)中的外套筒(23),所述弹簧(6)设置在外套筒(23)内侧,且弹簧(6)的上端顶压在外套筒(23)的顶部,下端顶压在弹簧腔(95)的底部上,所述主柱(2)从弹簧腔(95)的底部向下伸出,所述副柱(3)和活塞(4)位于弹簧腔(95)的下方,所述弹簧(6)置于料体腔上方并与料体腔隔离开从而避免泵送食品料体时弹簧(6)和料体接触。
  6. 根据权利要求5所述的一种带安全出口阀的外置弹簧食品泵,其特征在于:所述副柱(3)固定在主柱(2)的下端上,所述副柱(3)和主柱(2)之间留有供液体流入主柱(2)内的通孔(31),所述主柱(2)的下端插入在活塞(4)的内环(41)上,所述活塞(4)的内环(41)上设有向内凸出而从侧面紧压在主柱(2)外侧的环形密封凸条(42),所述环形密封凸条(42)下方相距一段距离设有供主柱(2)相对活塞(4)下移一段距离后顶压住的台阶(43)。
  7. 根据权利要求1所述的一种带安全出口阀的外置弹簧食品 泵,其特征在于:所述按头(1)的出口处连接有出口朝下的流出头(11),所述流出头(11)的出口上设有能将该出口关闭的关闭阀。
  8. 根据权利要求7所述的一种带安全出口阀的外置弹簧食品泵,其特征在于:所述关闭阀包括通过软带(12)连接在流出头(11)上并能将流出头(11)的出口盖住的盖帽(13)。
  9. 根据权利要求7所述的一种带安全出口阀的外置弹簧食品泵,其特征在于:所述关闭阀包括弹性鸭嘴头(14),所述关闭阀上连接有用于将鸭嘴头(14)固定在流出头(11)的出口下方的固定套(15),所述鸭嘴头(14)位于固定套(15)的内侧,且其具有扁嘴(141),在按头(1)内部压力变大时扁嘴(141)弹性张开,而在按头(1)内部压力变小时扁嘴(141)在自身弹性作用下弹性恢复闭合。
  10. 根据权利要求1所述的一种带安全出口阀的外置弹簧食品泵,其特征在于:所述按头(1)上设有插接口(16),所述主柱(2)内侧设有插入插接口(16)中插接固定的插接头(24)。
PCT/CN2020/130795 2020-09-11 2020-11-23 一种带安全出口阀的外置弹簧食品泵 WO2022052317A1 (zh)

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