WO2022252593A1 - 一种全塑按压泵 - Google Patents

一种全塑按压泵 Download PDF

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Publication number
WO2022252593A1
WO2022252593A1 PCT/CN2021/141602 CN2021141602W WO2022252593A1 WO 2022252593 A1 WO2022252593 A1 WO 2022252593A1 CN 2021141602 W CN2021141602 W CN 2021141602W WO 2022252593 A1 WO2022252593 A1 WO 2022252593A1
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WO
WIPO (PCT)
Prior art keywords
pump
rod
plastic
spring
press head
Prior art date
Application number
PCT/CN2021/141602
Other languages
English (en)
French (fr)
Inventor
梁配辉
朱茂勇
张永雷
梁金考
Original Assignee
中山市美捷时包装制品有限公司
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Application filed by 中山市美捷时包装制品有限公司 filed Critical 中山市美捷时包装制品有限公司
Priority to EP21943945.2A priority Critical patent/EP4349732A1/en
Priority to GB2318039.1A priority patent/GB2621768A/en
Publication of WO2022252593A1 publication Critical patent/WO2022252593A1/zh

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    • 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
    • B05B11/1073—Springs
    • B05B11/1077—Springs characterised by a particular shape or material
    • 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
    • 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
    • B05B11/0005—Components or details
    • B05B11/0037—Containers
    • B05B11/0039—Containers associated with means for compensating the pressure difference between the ambient pressure and the pressure inside the container, e.g. pressure relief means
    • B05B11/0044—Containers associated with means for compensating the pressure difference between the ambient pressure and the pressure inside the container, e.g. pressure relief means compensating underpressure by ingress of atmospheric air into the container, i.e. with venting means
    • B05B11/00442—Containers associated with means for compensating the pressure difference between the ambient pressure and the pressure inside the container, e.g. pressure relief means compensating underpressure by ingress of atmospheric air into the container, i.e. with venting means the means being actuated by the difference between the atmospheric pressure and the pressure 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
    • B05B11/1042—Components or details
    • B05B11/1043—Sealing or attachment arrangements between pump and 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
    • B05B11/1042—Components or details
    • B05B11/1043—Sealing or attachment arrangements between pump and container
    • B05B11/1046—Sealing or attachment arrangements between pump and container the pump chamber being arranged substantially coaxially to the neck of the container
    • B05B11/1047—Sealing 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
    • 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
    • B05B11/1073—Springs
    • 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
    • B05B11/1073—Springs
    • B05B11/1074—Springs located outside pump chambers
    • 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
    • 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

Definitions

  • the invention relates to an all-plastic pressing pump.
  • the present invention is made based on this situation.
  • the object of the present invention is to overcome the shortcomings of the prior art and provide an all-plastic push pump with simple structure.
  • An all-plastic pressing pump including a plastic press head, an atomizing nozzle, a pump body, a thread, a pump rod, a pump bead, a spring and a protective cover, the upper end of the pump body is fixed on the thread, and the The lower end of the pump rod is provided with a sliding sealing part which is inserted into the pump body and is slidingly and sealingly connected with the inner wall of the pump body.
  • the thread has a middle hole for the pump rod to pass through.
  • the sealing part of the tapered platform is sealed with the side wall of the middle hole when it bounces up.
  • the press head is connected to the upper end of the pump rod, and there is a liquid outlet channel leading from the pump body to the atomizing nozzle between the press head and the pump rod.
  • the switch structure that opens the liquid outlet channel and blocks the liquid outlet channel when the press head bounces.
  • the top of the thread is provided with a guide sleeve that is set upward on the outside of the press head.
  • the upper end of the guide sleeve is provided with an inward protrusion.
  • the anti-off protrusion is provided on the press head, which protrudes outward and can be hooked on the anti-off protrusion when it is pulled up.
  • the protective cover is on the guide sleeve and the press head. The outer side is clamped with the outer side of the guide sleeve.
  • the spring is placed inside the guide sleeve and pressed between the top of the press head and the screw.
  • the spring is a plastic spring tube with upper and lower ends open and the side is sealed.
  • the tube is a helical structure, and the direction of rotation is left-handed or right-handed.
  • the push head is provided with a hollow inserting rod and a slot located outside the inserting rod, the inserting rod is inserted into the pump rod and slides with the inner wall of the pump rod Sealed connection, the pump rod is fixed with a pull rod inserted into the inside of the plug rod, the switch structure includes an inverted cone-shaped valve core set on the upper end of the pull rod, and the plug rod is provided with an inwardly protruding protrusion ring, the upper end of the pump rod is provided with an inverted conical flange that is turned outward, and the inverted conical flange is inserted into the slot and can move up and down in the slot. The lower ring prevents the inverted tapered flanging from the slot.
  • the raised ring When the press head bounces, the raised ring is stuck under the inverted cone valve core to form a seal.
  • the annular raised bar is stuck in the inverted cone A seal is formed under the flanging.
  • the pressing head moves down and the convex ring is disengaged from the inverted cone valve core to open the liquid outlet channel, and after the pressing head moves down for a certain distance, it presses against the inverted cone. Press the pump rod on the shaped flange and move downward together.
  • the convex ring is formed by an inverted conical platform hole connected up and down and a conical platform hole at the upper and lower joints.
  • the upper end of the spring is provided with an annular mouth, and the lower end is provided with a downward annular cover, and the pressing head is provided with a limiter inserted into the annular mouth to limit the lateral movement of the upper end of the spring.
  • the thread is provided with a limiting cone for the outer side of the ring cover to limit the lateral movement of the lower end of the spring.
  • the inner wall of the annular cover is provided with a plurality of ribs protruding inward along the circumference, and the ribs are pressed on the limiting cone so that the lower end of the annular cover is in contact with the limiting cone.
  • a gap for external gas to enter is formed between the bit cones and frustums.
  • the pump body is provided with a pump bead seat for installing pump beads, and a plastic conduit is connected to the bottom of the pump body.
  • the present invention has following advantage:
  • All components of the present invention are made of plastic materials, which are environmentally friendly and safe, and are conducive to recycling, and the overall structure is simple and easy to manufacture.
  • the present invention adopts springs whose sides are connected into one body, which has good elasticity, and the springs are placed outside the pump body to facilitate quantitative pumping and discharging.
  • Fig. 1 is a sectional view of an all-plastic pressing pump of the present invention
  • Figure 2 is a schematic structural view of the spring.
  • an all-plastic push pump includes a plastic press head 1, an atomizing nozzle 2, a pump body 3, a thread 4, a pump rod 5, a pump bead 7, a spring 6 and a protection Cover 8, the upper end of the pump body 3 is fixed on the thread 4, the lower end of the pump rod 5 is provided with a sliding sealing part 51 inserted in the pump body 3 and connected to the inner wall of the pump body 3 in a sliding seal, the thread 4. There is a middle hole 41 for the pump rod 5 to pass through.
  • the pump rod 5 is provided with a conical platform sealing part 52 above the sliding sealing part 51.
  • the conical platform sealing part 52 is connected to the middle hole 41 side
  • the wall seal connection, the pump body 3 and the thread 4 are provided with an air supply passage 31 connecting the inside of the thread 4 and the upper port of the pump body 3,
  • the press head 1 is connected to the upper end of the pump rod 5, and the press head 1 and the pump rod 5 are provided with a liquid outlet channel 10 leading from the pump body 3 to the atomizing nozzle 2, and a liquid outlet channel 10 is provided between the press head 1 and the pump rod 5 to open when the press head 1 is pressed.
  • the top of the thread 4 is provided with a guide sleeve 42 that is upwardly placed on the outside of the press head 1, and the upper end of the guide sleeve 42 is provided with a Inwardly protruding anti-off protrusion 43
  • said press head 1 is provided with an anti-off hook 11 that protrudes outward and can be hooked on the anti-off protrusion 43 when pulled up
  • said protective cover 8 covers
  • the spring 6 is placed inside the guide sleeve 42 and pressed between the top of the press head 1 and the thread 4, the spring 6 It is a plastic spring tube whose upper and lower ends are open and the sides are sealed, and the sides of the spring 6 are connected into one body, with good elasticity, an all-plastic structure, safety and environmental protection, and a simple structure.
  • the press head 1 is provided with a hollow inserting rod 12 and a slot 13 located outside the inserting rod 12.
  • the inserting rod 12 is inserted into the pump rod 5 and is in sliding and sealing connection with the inner wall of the pump rod.
  • a pull rod 53 inserted into the insert rod 12 is fixed inside the pump rod 5.
  • the switch structure includes an inverted cone-shaped valve core 54 arranged on the upper end of the pull rod 53.
  • the insert rod 12 is provided with an inwardly protruding
  • the convex ring 14 the upper end of the pump rod 5 is provided with an inverted conical flange 55 that is turned outward, and the inverted conical flange 55 is inserted into the slot 13 and can move up and down in the slot 13.
  • the slot 13 is provided with an annular protruding strip 15 that can prevent the inverted conical flange 55 from coming out of the slot 13 from below.
  • the bottom forms a seal to block the liquid outlet channel 10, and the annular convex strip 15 is stuck under the inverted tapered flange 55 to form a seal.
  • the pressing head 1 moves down and the convex ring 14 is released.
  • the pump body 3 is provided with a pump bead seat 32 for installing the pump bead 7 , and a plastic conduit 9 is connected to the bottom of the pump body 3 .
  • Described protruding ring 14 is formed by the upside-down conical table hole and the conical table hole connected at the upper and lower joints, from bottom to top, forming a channel that gradually decreases to the minimum and then turns and then gradually increases. Improve the eruption effect of the contents.
  • the upper end of the spring 6 is provided with an annular mouth 61, and the lower end is provided with a downward annular cover 62, and the press head 1 is provided with a limit post 16 inserted into the annular mouth 61 to limit the lateral movement of the upper end of the spring 6.
  • Said thread 4 is provided with a limit cone 44 for the ring cover 62 to buckle on the outside to limit the lateral movement of the lower end of the spring 6, so that the position of the spring 6 is fixed and the stability of the elastic pressure is improved.
  • the inner wall of the annular cover 62 is provided with a plurality of inwardly protruding ribs 63 along the circumference, and the ribs 63 are pressed on the limiting cone 44 so that a gap between the lower end of the annular cover 62 and the limiting cone 44 is formed.
  • a gap is formed for the entry of external air so that the external air enters the inner side of the spring 6.

Landscapes

  • Closures For Containers (AREA)
  • Reciprocating Pumps (AREA)

Abstract

本发明公开了一种全塑按压泵，包括有塑料制成的按头、雾化喷嘴、泵体、螺牙、泵杆、泵珠、弹簧和保护盖，泵杆下端设有插入在泵体中并与泵体内壁滑动密封连接的滑动密封部，螺牙具有中孔供泵杆穿过，泵杆上位于滑动密封部上方设有锥形台密封部，锥形台密封部在弹起时与中孔侧壁密封连接，泵体和螺牙之间设有补气通道，按头和泵杆之间设有出液通道，以及在按头按下时打开出液通道而在按头弹起时阻断出液通道的开关结构，螺牙的顶部上设有向上套在按头外侧上的导向套，导向套上端设有防脱凸起，按头上设有能勾在防脱凸起上的防脱卡勾，弹簧置于导向套内侧并顶压在按头和螺牙的顶部之间，弹簧为上下端开口而侧面密封的塑料弹簧管，结构简单。

Description

一种全塑按压泵
本申请要求于2021年05月31日提交中国专利局、申请号为202110603998.4、发明名称为“一种全塑按压泵”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及一种全塑按压泵。
背景技术
现在的按压泵由于环保要求越来越多采用的全塑胶零件制造，而目前的全塑按压泵结构都较为复杂，或存在密封不好，或存在弹力不佳等不足。
本发明就是基于这种情况作出的。
发明内容
本发明目的是克服了现有技术的不足，提供一种结构简单的全塑按压泵。
本发明是通过以下技术方案实现的：
一种全塑按压泵，包括有塑料制成的按头、雾化喷嘴、泵体、螺牙、泵杆、泵珠、弹簧和保护盖，所述泵体的上端固定在螺牙上，所述泵杆下端设有插入在泵体中并与泵体内壁滑动密封连接的滑动密封部，所述螺牙具有中孔供泵杆穿过，所述泵杆上位于滑动密封部上方设有锥形台密封部，所述锥形台密封部在弹起时与中孔侧壁密封连接，所述泵体和螺牙之间设有连通螺牙内部和泵体上端口的补气通道，所述按头连接在泵杆上端，所述按头和泵杆之间设有从泵体通向雾化喷嘴的出液通道，所述按头和泵杆之间设有在按头按下时打开出液通道而在按头弹起时阻断出液通道的开关结构，所述螺牙的顶部上设有向上套在按头外侧上的导向套，所述导向套上端设有往内凸出的防脱凸起，所述按头上设有向外凸出并在向上拔起时能勾在防脱凸起上的防脱卡勾，所述保护盖罩在导向套和按头的外侧并与导向套的外侧卡接，所述弹簧置于导向套内侧并顶压在按头和螺牙的顶部 之间，所述弹簧为上下端开口而侧面密封的塑料弹簧管所述塑料弹簧管为螺旋结构，旋向为左旋或右旋结构。
如上所述的一种全塑按压泵，所述按头上设有中空的插接杆，以及位于插接杆外侧的插槽，所述插接杆插入在泵杆内并与泵杆内壁滑动密封连接，所述泵杆内固定有插入在插接杆内部的拉杆，所述开关结构包括设置在拉杆上端的倒锥形台阀芯，所述插接杆内设有向内凸出的凸环，所述泵杆上端设有朝外翻出的倒锥形翻边，所述倒锥形翻边插入在插槽内并能在插槽内上下活动，所述插槽内设有能从下阻止倒锥形翻边从插槽中脱出的环形凸条，在按头弹起时，所述凸环卡在倒锥形台阀芯下方形成密封，所述环形凸条卡在倒锥形翻边下方形成密封，在按下按头过程中，所述按头下移并使凸环脱开倒锥形台阀芯打开出液通道，并在按头下移一段距离后压在倒锥形翻边上压着泵杆一起向下运动。
如上所述的一种全塑按压泵，所述凸环由上下相连的倒锥形台孔和锥形台孔在上下连接处形成。
如上所述的一种全塑按压泵，所述弹簧上端设有环形口，而下端设有朝下的环形罩，所述按头上设有插入在环形口内以限制弹簧上端横向活动的限位柱，所述螺牙上设有供环形罩扣在外侧而限制弹簧下端横向活动的限位锥台。
如上所述的一种全塑按压泵，所述环形罩的内壁上沿周向设有多个往内凸出的筋条，所述筋条压在限位锥台上而使环形罩的下端与限位锥台之间形成一个供外部气体进入的间隙。
如上所述的一种全塑按压泵，所述泵体内设有用于安装泵珠的泵珠座，所述泵体下方连接有塑料导管。
与现有技术相比，本发明有如下优点：
1、本发明所有构件均有塑胶材料制成，环保安全，利于回收，而且整体结构简单，制造方便。
2、本发明采用侧面连成一体的弹簧，弹性好，而且弹簧外置在泵体外侧，以便于更好地定量泵送出料。
附图说明
下面结合附图对本发明的具体实施方式作进一步详细说明，其中：
图1是本发明一种全塑按压泵的剖视图；
图2是弹簧的结构示意图。
具体实施方式
下面结合附图对本发明作进一步描述：
如图1至图2所示一种全塑按压泵，包括有塑料制成的按头1、雾化喷嘴2、泵体3、螺牙4、泵杆5、泵珠7、弹簧6和保护盖8，所述泵体3的上端固定在螺牙4上，所述泵杆5下端设有插入在泵体3中并与泵体3内壁滑动密封连接的滑动密封部51，所述螺牙4具有中孔41供泵杆5穿过，所述泵杆5上位于滑动密封部51上方设有锥形台密封部52，所述锥形台密封部52在弹起时与中孔41侧壁密封连接，所述泵体3和螺牙4之间设有连通螺牙4内部和泵体3上端口的补气通道31，所述按头1连接在泵杆5上端，所述按头1和泵杆5之间设有从泵体3通向雾化喷嘴2的出液通道10，所述按头1和泵杆5之间设有在按头1按下时打开出液通道10而在按头1弹起时阻断出液通道10的开关结构，所述螺牙4的顶部上设有向上套在按头1外侧上的导向套42，所述导向套42上端设有往内凸出的防脱凸起43，所述按头1上设有向外凸出并在向上拔起时能勾在防脱凸起43上的防脱卡勾11，所述保护盖8罩在导向套42和按头1的外侧并与导向套42的外侧卡接，所述弹簧6置于导向套42内侧并顶压在按头1和螺牙4的顶部之间，所述弹簧6为上下端开口而侧面密封的塑料弹簧管，弹簧6侧面连成一体，弹性好，全塑结构，安全环保，结构简单。
所述按头1上设有中空的插接杆12，以及位于插接杆12外侧的插槽13，所述插接杆12插入在泵杆5内并与泵杆内壁滑动密封连接，所述泵杆5内固定有插入在插接杆12内部的拉杆53，所述开关结构包括设置在拉杆53上端的倒锥形台阀芯54，所述插接杆12内设有向内凸出的凸环14，所述泵杆5上端设有朝外翻出的倒锥形翻边55，所述倒锥形翻边55插入在插槽13内并能在插槽13内上下活动，所述插槽13内设有能从下阻止倒锥 形翻边55从插槽13中脱出的环形凸条15，在按头1弹起时，所述凸环14卡在倒锥形台阀芯54下方形成密封阻断出液通道10，所述环形凸条15卡在倒锥形翻边55下方形成密封，在按下按头1过程中，所述按头1下移并使凸环14脱开倒锥形台阀芯54打开出液通道10，并在按头1下移一段距离后压在倒锥形翻边55上压着泵杆5一起向下运动，泵体3内的内容物经出液通道10被泵送出去，并经雾化喷嘴2雾化后喷出喷雾。
所述泵体3内设有用于安装泵珠7的泵珠座32，所述泵体3下方连接有塑料导管9。
所述凸环14由上下相连的倒锥形台孔和锥形台孔在上下连接处形成，从下往上，形成一个逐渐减小到最小处后马上转折又逐渐增大的通道，在按压时提高内容物的喷发效果。
所述弹簧6上端设有环形口61，而下端设有朝下的环形罩62，所述按头1上设有插入在环形口61内以限制弹簧6上端横向活动的限位柱16，所述螺牙4上设有供环形罩62扣在外侧而限制弹簧6下端横向活动的限位锥台44，使弹簧6位置固定，提高弹压的稳定性。
所述环形罩62的内壁上沿周向设有多个往内凸出的筋条63，所述筋条63压在限位锥台44上而使环形罩62的下端与限位锥台44之间形成一个供外部气体进入的间隙，以便外部气体进入弹簧6的内侧，当压下泵杆5时，锥形台密封部52与中孔41侧壁分开，经补气通道31从而使螺牙内部与弹簧6外侧的空气相连通给所在瓶子进行补气，在泵杆5弹起时，锥形台密封部52与中孔41侧壁形成密封，隔绝所在瓶子与外部的连通，密封性好。

Claims (6)

  1. 一种全塑按压泵，其特征在于：包括有塑料制成的按头(1)、雾化喷嘴(2)、泵体(3)、螺牙(4)、泵杆(5)、泵珠(7)、弹簧(6)和保护盖(8)，所述泵体(3)的上端固定在螺牙(4)上，所述泵杆(5)下端设有插入在泵体(3)中并与泵体(3)内壁滑动密封连接的滑动密封部(51)，所述螺牙(4)具有中孔(41)供泵杆(5)穿过，所述泵杆(5)上位于滑动密封部(51)上方设有锥形台密封部(52)，所述锥形台密封部(52)在弹起时与中孔(41)侧壁密封连接，所述泵体(3)和螺牙(4)之间设有连通螺牙(4)内部和泵体(3)上端口的补气通道(31)，所述按头(1)连接在泵杆(5)上端，所述按头(1)和泵杆(5)之间设有从泵体(3)通向雾化喷嘴(2)的出液通道(10)，所述按头(1)和泵杆(5)之间设有在按头(1)按下时打开出液通道(10)而在按头(1)弹起时阻断出液通道(10)的开关结构，所述螺牙(4)的顶部上设有向上套在按头(1)外侧上的导向套(42)，所述导向套(42)上端设有往内凸出的防脱凸起(43)，所述按头(1)上设有向外凸出并在向上拔起时能勾在防脱凸起(43)上的防脱卡勾(11)，所述保护盖(8)罩在导向套(42)和按头(1)的外侧并与导向套(42)的外侧卡接，所述弹簧(6)置于导向套(42)内侧并顶压在按头(1)和螺牙(4)的顶部之间，所述弹簧(6)为上下端开口而侧面密封的塑料弹簧管所述塑料弹簧管为螺旋结构，旋向为左旋或右旋结构。
  2. 根据权利要求1所述的一种全塑按压泵，其特征在于：所述按头(1)上设有中空的插接杆(12)，以及位于插接杆(12)外侧的插槽(13)，所述插接杆(12)插入在泵杆(5)内并与泵杆内壁滑动密封连接，所述泵杆(5)内固定有插入在插接杆(12)内部的拉杆(53)，所述开关结构包括设置在拉杆(53)上端的倒锥形台阀芯(54)，所述插接杆(12)内设有向内凸出的凸环(14)，所述泵杆(5)上端设有朝外翻出的倒锥形翻边(55)，所述倒锥形翻边(55)插入在插槽(13)内并能在插槽(13)内上下活动，所述插槽(13)内设有能从下阻止倒锥形翻边(55)从插槽(13)中脱出的环形凸条(15)，在按头(1)弹起时，所述凸环(14)卡在倒锥形台阀芯(54)下方形成密封，所述环形凸条(15)卡在倒锥形翻边(55)下方形成密封，在按下按头(1)过程中，所述按头(1)下移并使凸环(14) 脱开倒锥形台阀芯(54)打开出液通道(10)，并在按头(1)下移一段距离后压在倒锥形翻边(55)上压着泵杆(5)一起向下运动。
  3. 根据权利要求2所述的一种全塑按压泵，其特征在于：所述凸环(14)由上下相连的倒锥形台孔和锥形台孔在上下连接处形成。
  4. 根据权利要求1所述的一种全塑按压泵，其特征在于：所述弹簧(6)上端设有环形口(61)，而下端设有朝下的环形罩(62)，所述按头(1)上设有插入在环形口(61)内以限制弹簧(6)上端横向活动的限位柱(16)，所述螺牙(4)上设有供环形罩(62)扣在外侧而限制弹簧(6)下端横向活动的限位锥台(44)。
  5. 根据权利要求4所述的一种全塑按压泵，其特征在于：所述环形罩(62)的内壁上沿周向设有多个往内凸出的筋条(63)，所述筋条(63)压在限位锥台(44)上而使环形罩(62)的下端与限位锥台(44)之间形成一个供外部气体进入的间隙。
  6. 根据权利要求1所述的一种全塑按压泵，其特征在于：所述泵体(3)内设有用于安装泵珠(7)的泵珠座(32)，所述泵体(3)下方连接有塑料导管(9)。
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