WO2017206603A1 - 定量按压喷头及具有定量按压喷头的容器 - Google Patents

定量按压喷头及具有定量按压喷头的容器 Download PDF

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Publication number
WO2017206603A1
WO2017206603A1 PCT/CN2017/080853 CN2017080853W WO2017206603A1 WO 2017206603 A1 WO2017206603 A1 WO 2017206603A1 CN 2017080853 W CN2017080853 W CN 2017080853W WO 2017206603 A1 WO2017206603 A1 WO 2017206603A1
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WO
WIPO (PCT)
Prior art keywords
pressing
head
screw cap
quantitative
container
Prior art date
Application number
PCT/CN2017/080853
Other languages
English (en)
French (fr)
Inventor
王雅灿
Original Assignee
江苏德晋塑料包装有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN201620533847.0U external-priority patent/CN205659827U/zh
Priority claimed from CN201610388799.5A external-priority patent/CN105880074A/zh
Application filed by 江苏德晋塑料包装有限公司 filed Critical 江苏德晋塑料包装有限公司
Priority to US16/098,044 priority Critical patent/US20190168245A1/en
Priority to JP2018568480A priority patent/JP2019511433A/ja
Publication of WO2017206603A1 publication Critical patent/WO2017206603A1/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
    • B05B11/0005—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
    • B05B11/01—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
    • B05B11/1001—Piston pumps
    • B05B11/1009—Piston pumps actuated by a lever
    • B05B11/1012—Piston pumps actuated by a lever the pump chamber being arranged substantially coaxially to the neck of the container
    • B05B11/1014—Piston pumps actuated by a lever the pump chamber being arranged substantially coaxially to the neck of the container the pump chamber being arranged substantially coaxially to 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
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/60—Arrangements for mounting, supporting or holding spraying apparatus
    • B05B15/63—Handgrips
    • 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
    • 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
    • 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
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/30—Dip tubes

Definitions

  • the invention relates to the technical field of nozzles, and in particular to a quantitative pressing nozzle and a container having a quantitative pressing nozzle.
  • the nozzles provided on the containers such as shower gels and hand sanitizers mostly adopt the extraction method of the pneumatic tube body.
  • the pressure head on the pipe body is pressed down by hand, and the piston compresses the liquid in the cylinder under the force of the pressure head.
  • the pipe body communicates with the cylinder, and the inlet port of the cylinder bottom is closed, and the liquid in the cylinder is pressed.
  • the spring force supporting the indenter is relatively large, and the user is more laborious when pressing the indenter, especially for the elderly and children.
  • the piston is prone to horizontal deflection during the pressing process of the indenter, which reduces the airtightness of the cylinder of the pressing head, and even causes the problem of the detachment and rupture of the indenter even when the container is dropped at a high position.
  • the liquid in the container bottle is at risk of being contaminated by metal components in the indenter.
  • a quantitative pressing nozzle includes: a pressing plate, a pressing head, and a portable screw cap for connecting with the container; the pressing head is disposed in the portable screw cap, and the pressing plate is disposed on On the indenter;
  • One end of the pressure plate is a fixed end connected to the portable screw cap, and the other end is a pressing end, and the pressure plate is linked with the pressing head by using the fixed end as a lever fulcrum, and the pressing end and the fixing end
  • the end forms a first force arm, the ram and the fixed end forming a second force arm, the first force arm being larger than the second force arm.
  • the portable screw cap is further provided with a long tail grip portion; the long tail grip portion extends in a direction that coincides with the extending direction of the pressing end.
  • the portable screw cap is provided with a guiding groove
  • the pressing head is provided with a guiding protrusion corresponding to the guiding groove
  • the pressing head is guided back and forth along the guiding groove by the guiding protrusion motion.
  • the portable screw cap is provided with a guiding rib
  • the pressing head is provided with a guiding groove corresponding to the guiding rib
  • the pressing head is guided along the guiding groove The ribs move back and forth.
  • the pump body and the straw are further included; one end of the straw is connected to the inlet of the bottom of the pump body, and the other end is away from the pump body and protrudes into the liquid; the straw is away from the pump
  • One end of the body is provided with a bent portion that extends toward the liquid discharge direction of the indenter.
  • a check valve is further included; the check valve is disposed at the inlet, and the check valve is a plastic check valve.
  • the check valve includes an edge portion, an elastic portion, and a valve body
  • the end portion is connected to the pump body, and an upper end of the valve body is connected to the end edge portion through the elastic portion, and a lower end of the valve body corresponds to the inlet port, and the valve body is The lower end is attached to the inlet port to isolate the pump body from the liquid in the container, or is separated from the inlet port to connect the pump body with the liquid in the container.
  • a buckle is further included; the buckle is detachably connected between the pressing end of the pressure plate and the portable screw cap to limit the pressing end.
  • an elastic body is further included;
  • the indenter further includes a spout, a pipe body, and a ring groove;
  • the tube body and the spout form a liquid material passage
  • the ring groove is coaxially disposed outside the tube body
  • the elastic body is sleeved on the outer wall of the tube body
  • one end of the elastic body is disposed at The other end of the annular groove is disposed on the portable screw cap.
  • the elastomer comprises a spring.
  • the present invention also provides a container having a metering press head, including the metering press head.
  • the present invention has the following beneficial effects:
  • the invention adopts the principle of the lever, and the longer the force arm is, the smaller the force required to be applied is due to the equal reaction torque.
  • the invention utilizes the fixed end of the pressure plate and the portable screw cap as a fulcrum and the lever as a lever, and reduces the force required to press the ram by increasing the distance between the pressing end and the fixed end.
  • the invention is convenient and labor-saving to use.
  • the long tail grip portion of the invention effectively solves the one-handed extraction problem of the large-capacity container, and cooperates with the pressure plate to facilitate one-hand manipulation.
  • the invention cooperates with the guiding groove and the guiding rib, or the corresponding cooperation of the guiding groove and the guiding protrusion enables the pressing head to stably move up and down along the portable screw cap, thereby solving the piston in the prior art in the process of pressing the pressing head
  • the horizontal direction is skewed, which reduces the problem of airtightness of the cylinder of the pressing head.
  • the invention provides a detachable buckle between the portable screw cap and the pressure plate, which solves the problem that the pressure head is separated from the hand-held screw cap when the container is dropped at a high position and the problem of mis-pressing of the pressure plate.
  • the invention solves the problem that in the prior art, when the liquid in the container is too small, the straw of the nozzle can not sufficiently absorb the liquid liquid by providing the curved portion on the straw.
  • 1 is a schematic view showing an optional compression process of a quantitative pressing nozzle
  • FIG. 2 is a schematic structural view of an optional quantitative pressing nozzle
  • Figure 3 is a schematic cross-sectional view of an optional quantitative pressing nozzle
  • Figure 4 is an exploded view of an optional quantitative pressing nozzle
  • Figure 5 is an alternative schematic view of a container holding a dispensing nozzle
  • Figure 6 is a schematic illustration of an optional container holding press with a metering press.
  • a pressure pressing plate as shown in FIGS. 1-4, includes: a pressing plate 1, a pressing head 2, and a portable screw cap 5 for connecting with the container 11; Passing through the portable screw cap 5, the pressure plate 1 abuts on the ram 2;
  • One end of the pressure plate 1 is a fixed end connected to the portable screw cap 5, and the other end is a pressing end, and the pressure plate 1 is linked with the pressure head 2 by the fixed end as a lever fulcrum, and the pressing end Forming a first force arm with the fixed end, the indenter 2 and the fixed end forming a second force arm, the first force arm being larger than the second force arm.
  • the portable screw cap 5 is further provided with a long tail grip portion; the extending direction of the long tail grip portion coincides with the extending direction of the pressing end.
  • the amount of liquid used is large, the amount of spit out of the existing nozzle is insufficient, and it is necessary to press a plurality of times to reach the required amount. Generally, it needs to be poured into a measuring cup, and the required amount cannot be accurately calculated, and the additional liquid consumption is easily generated. . Therefore, in the case of a quantitative discharge which requires a large amount of discharge, it is necessary to match the bottle with a large discharge amount, the volume of the bottle becomes larger and heavier, the design of the long tail grip portion is increased, and the convenience in use is improved.
  • the long tail grip portion in this embodiment is bent and extended in the direction of the container 11 as shown in FIGS.
  • the long tail grip portion is an ergonomically designed shape structure, so that the quantitative press head is suitable for use on the container 11 having a larger weight.
  • the long tail grip is designed to facilitate one-handed pressing operation.
  • the pressing plate 1 makes the operation more ergonomic and achieves labor-saving effect.
  • the use scene is shown in Figure 5 and Figure 6.
  • the portable screw cap 5 is provided with a guiding groove
  • the pressing head 2 is provided with a guiding protrusion corresponding to the guiding groove
  • the pressing head 2 is along the guiding protrusion
  • the guide groove moves back and forth. The engagement of the guide groove and the guide projection prevents the ram 2 from being skewed when the pressure plate 1 and the ram 2 are pressed down, thereby causing a problem of leakage or unstable connection outside the material.
  • the portable screw cap 5 is provided with a guiding rib
  • the ram 2 is provided with a guiding groove corresponding to the guiding rib
  • the ram 2 is the guiding groove Moving back and forth along the guiding ribs.
  • This embodiment is a modification of the embodiment of the guide groove and the guide projection, and the effect is the same, and the present invention is not limited thereto.
  • a pump body and a straw 10 are further included; one end of the straw 10 is connected to the inlet of the bottom of the pump body, and the other end is away from the pump body and protrudes into the liquid; the straw 10 is far away
  • One end of the pump body is provided with a bent portion C that extends toward the liquid discharge direction of the ram 2 .
  • the curved shape of the straw 10 is such that the direction of the bend coincides with the direction of the spray of the spray head.
  • the container 11 to which the quantitative pressing head is mounted is lifted, the front tilting causes the head to be close to the position to be sprayed, and the liquid in the container 11 flows toward the bottom of the container 11 toward the liquid spray as the container 11 is inclined.
  • the position of the direction is stacked.
  • the bending portion C in this embodiment is due to the bending direction and the liquid discharge
  • the direction is the same, and the tail end just coincides with the position where the remaining liquid is accumulated, so that the remaining liquid in the container 11 can be extracted to the maximum extent, as shown in FIGS. 5 and 6.
  • the curved portion C in the present embodiment is positioned by the thermoplastic processing of the plastic material of the straw 10, so that the straw 10 is bent and a rigid rib-like structure is formed on the curved back to prevent the suction tube 10 from rebounding and the bending angle to be permanently set.
  • a check valve 9 is further included; the check valve 9 is provided at the inlet, and the check valve 9 is a plastic check valve 9.
  • the check valve 9 discards the traditional steel ball type and uses plastic material. One is to avoid contamination of the metal parts in contact with the liquid; the second is that the plastic elasticity can better ensure the airtightness, and the angle is not limited when used, which can improve the convenience of use. Sex.
  • the check valve 9 includes an edge portion, an elastic portion, and a valve body
  • the end portion is connected to the pump body, and an upper end of the valve body is connected to the end edge portion through the elastic portion, and a lower end of the valve body corresponds to the inlet port, and the valve body is The lower end is attached to the inlet port to isolate the pump body from the liquid in the container 11, or is separated from the inlet port to connect the pump body with the liquid in the container 11.
  • a buckle 12 is further included; the buckle 12 is detachably connected between the pressing end of the pressure plate 1 and the portable screw cap 5 to limit the pressing end.
  • an elastic body is further included;
  • the indenter 2 further includes a spout, a pipe body 4, and a ring groove;
  • the tube body 4 and the nozzle form a liquid material passage, the ring groove is coaxially disposed outside the tube body 4, the elastic body is sleeved on the outer wall of the tube body 4, and the elastic body One end is disposed in the ring groove, and the other end is abutted on the portable screw cap 5.
  • the external elastic body design can avoid the problem of the metal part contaminating the material body caused by the built-in elastic body.
  • the elastic body includes a spring, or a spring piece, or an elastic rubber or the like, and the present invention is not limited thereto.
  • the present invention also provides a container 11 having a metering press head, as shown in Figures 5 and 6, including the metering press head.
  • the quantitative pressing nozzle is composed of a pressure plate (1), a pressure head (2), a spring (3), a pipe body (4), a portable screw cap (5), a piston (6), a cylinder (7), and a pressing piece (8).
  • the check valve (9) and the suction pipe (10) are composed.
  • the elastic body is a spring.
  • the indenter (2) continues to press down after the S1 stroke, the indenter (2) compresses the spring (3), and the tube body (4) starts to move the piston (6) down to the end of the S2 stroke, the stroke head (2)
  • the piston (6) is driven by the pipe body (4) to squeeze the inner space of the cylinder (7), and the bottom of the cylinder (7) is closed by the check valve, and the liquid in the cylinder (7) enters the pipe body (4) and then the upper head (2) Spray extrusion.
  • S1 and S2 in Fig. 1 are continuous strokes.
  • the pressure head (2) is moved upward by the elastic force of the spring (3), and drives the pipe body (4) to move up together.
  • the piston (6) is stationary by the frictional force of the inner wall of the cylinder (7).
  • the valve port at the lower end of the pipe body (4) moves up until it is not inserted into the piston (6).
  • the pressure head (2), the pipe body (4) and the piston (6) continue to move upward under the elastic force of the spring (3), allowing the internal space of the cylinder (7), at this time the check valve ( 9) Since the air pressure in the cylinder (7) is lower than the pressure in the container, the inlet port at the bottom of the cylinder (7) is simultaneously opened, and the liquid in the container enters the cylinder (7), with the reset of the indenter (2) The fluid is gradually filled into the cylinder (7).
  • the indenter (2), the pipe body (4), and the piston (6) continue upward until they are in contact with the head (2) against the pressure plate (1) and the top limit structure of the hand-held screw cap (5), or until the spring (3) Restore the original length, the indenter (2) stops moving upwards, the liquid fills the cylinder (7), and the check valve (9) closes, and the reset is completed.

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  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Closures For Containers (AREA)

Abstract

一种定量按压喷头以及具有该喷头的容器，该喷头包括：压板(1)、压头(2)和用于与容器(11)连接的手提式旋盖(5)，压头(2)穿设于手提式旋盖(5)中，压板(1)抵设于压头(2)上，压板(1)的一端为与手提式旋盖(5)相连的固定端，另一端为按压端，压板(1)以固定端为杠杆支点与压头(2)联动，按压端与固定端形成第一力臂，压头(2)与固定端形成第二力臂，第一力臂大于第二力臂。该喷头与手提式旋盖的固定端为支点、以压板为杠杆，通过增长按压端与固定端的距离而减小按压压头所需施加的力。

Description

定量按压喷头及具有定量按压喷头的容器 技术领域
本发明涉及喷头技术领域，具体地，涉及一种定量按压喷头及具有定量按压喷头的容器。
背景技术
人们平常使用的日常生活用品中许多都设有气压式喷头，其主要的功能就是利用气压原理将容器内的液体通过管体抽取出来。例如在沐浴露、洗手液等容器上设置的喷头大多采用这种气压管体的抽取方式。其使用时用手下压管体上的压头，活塞在压头的作用力下压缩气缸内料液，在此时管体与气缸连通，且气缸底部入料口封闭，气缸中料液被压入管体，进而通过压头的喷嘴喷出；松开对压头的按压，而压头在弹簧作用力下向上复位，此时管体与气缸隔离，且气缸底部入料口开启，气缸内压力小于容器瓶内压力，容器瓶内料液被抽吸入气缸中使得气缸重新填满料液。此种结构不仅使用方便，并可有效减少溶液的浪费，因而被广泛利用。但是其也存在一定的缺点：
1、支撑压头的弹簧弹力较大，使用者下压压头时比较费力，尤其是老人小孩比较明显。
2、在料液使用量大时，如洗衣液一次使用量较大，因现有喷头吐出量不足，须按压多次才能达到所需用量，并且常常需要配合量杯测量准确的喷出量，而多次喷液则带来使用不便利的问题。另外，若需要实现定量喷出，则需要使用喷出量大的喷头，匹配大吐出量的瓶子和气缸，瓶子体积变大、变重，则如何便于握持也成为亟待解决的问题。
3、现有技术中压头下压过程中活塞易发生水平方向偏斜，降低了按压头气缸的气密性，甚至在容器高处跌落时极易造成压头脱离与破裂的问题。
4、现有技术中在容器内料液过少时，喷头的吸管无法充分吸取料液。
5、容器瓶中的料液有被压头中金属元件污染的风险。
发明内容
针对现有技术中的缺陷，本发明的目的是提供一种定量按压喷头及具有定量按压喷头的容器。
根据本发明提供的一种定量按压喷头，包括：压板、压头和用于与容器连接的手提式旋盖；所述压头穿设于所述手提式旋盖中，所述压板抵设于所述压头上；
所述压板的一端为与所述手提式旋盖相连的固定端,另一端为按压端，所述压板以所述固定端为杠杆支点与所述压头联动，所述按压端与所述固定端形成第一力臂，所述压头与所述固定端形成第二力臂，所述第一力臂大于所述第二力臂。
作为一种优化方案，所述手提式旋盖还设有长尾握持部；所述长尾握持部的延伸方向与所述按压端的延伸方向一致。
作为一种优化方案，所述手提式旋盖设有导向槽，所述压头设有与所述导向槽对应的导向凸起，所述压头以所述导向凸起沿所述导向槽来回运动。
作为一种优化方案，所述手提式旋盖设有导向凸条，所述压头设有与所述导向凸条对应的导向凹槽，所述压头以所述导向凹槽沿所述导向凸条来回运动。
作为一种优化方案，还包括泵体和吸管；所述吸管的一端连接所述泵体底部的入料口，另一端远离所述泵体并伸入料液中；所述吸管远离所述泵体的一端设置有弯曲部，所述弯曲部朝所述压头的喷液方向延伸。
作为一种优化方案，还包括止逆阀；所述止逆阀设于所述入料口，所述止逆阀为塑料止逆阀。
作为一种优化方案，所述止逆阀包括端缘部、弹性部、阀体；
所述端缘部与所述泵体连接，所述阀体的上端通过所述弹性部与所述端缘部相连，所述阀体的下端与所述入料口对应，所述阀体的下端与所述入料口贴合使所述泵体与容器中的料液隔离，或与所述入料口分离使所述泵体与容器中的料液连通。
作为一种优化方案，还包括卡扣；所述卡扣可拆卸地连接于所述压板的按压端与所述手提式旋盖之间，从而对所述按压端限位。
作为一种优化方案，还包括弹性体；所述压头还包括喷口、管体、环槽；
所述管体与所述喷口形成料液通道，所述环槽同轴设置于所述管体外侧，所述弹性体套设于所述管体外壁上，且所述弹性体的一端设于所述环槽内，另一端抵设于所述手提式旋盖上。
作为一种优化方案，所述弹性体包括弹簧。
基于同一构思，本发明还提供了一种具有定量按压喷头的容器，包括所述定量按压喷头。
与现有技术相比，本发明具有如下的有益效果：
本发明采用杠杆的原理，由于反作用力矩相等的情况下，力臂越长，所需要施加的作用力就越小。本发明利用压板与手提式旋盖的固定端为支点、以压板为杠杆，通过增长所述按压端与所述固定端的距离而减小按压压头所需施加的力。本发明使用便捷且省力。
本发明中长尾握持部有效解决了大容量容器的单手提取问题，与压板配合利于单手操纵。
本发明通过导向凹槽与导向凸条的配合，或导向槽和导向凸起的对应配合使得压头能够稳定地沿手提式旋盖上下移动，解决了现有技术中压头下压过程中活塞水平方向偏斜，降低了按压头气缸的气密性的问题。
本发明在手提式旋盖与压板之间设置可拆卸的卡扣，解决了容器高处跌落时压头与手提式旋盖脱离的问题和压板误按问题。
本发明通过在吸管上设置弯曲部解决了现有技术中在容器内料液过少时，喷头的吸管无法充分吸取料液。
附图说明
为了更清楚地说明本发明实施例的技术方案，下面将对实施例描述中所需要使用的附图作简单的介绍，显而易见，下面描述中的附图仅仅是本发明的一些实施例，对于本领域技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。附图中：
图1是可选的一种定量按压喷头压缩过程示意图；
图2是可选的一种定量按压喷头结构示意图；
图3是可选的一种定量按压喷头截面示意图；
图4是可选的一种定量按压喷头分解图；
图5是可选的一种具有定量按压喷头的容器握持示意图；
图6是可选的一种具有定量按压喷头的容器握持按压示意图。
图中：1-压板，2-压头，3-弹簧，4-管体，5-手提式旋盖，6-活塞，7-气缸，8-迫紧片，9-止逆阀，10-吸管，11-容器，12-卡扣，C-弯曲部。
具体实施方式
下文结合附图以具体实施例的方式对本发明进行详细说明。以下实施例将有助于本领域的技术人员进一步理解本发明，但不以任何形式限制本发明。应当指出的是，还可以使用其他的实施例，或者对本文列举的实施例进行结构和功能上的修改，而不会脱离 本发明的范围和实质。
在本发明提供的一种定量按压喷头的实施例中，如图1-4所示，包括：压板1、压头2和用于与容器11连接的手提式旋盖5；所述压头2穿设于所述手提式旋盖5中，所述压板1抵设于所述压头2上；
所述压板1的一端为与所述手提式旋盖5相连的固定端,另一端为按压端，所述压板1以所述固定端为杠杆支点与所述压头2联动，所述按压端与所述固定端形成第一力臂，所述压头2与所述固定端形成第二力臂，所述第一力臂大于所述第二力臂。
作为一种实施例，所述手提式旋盖5还设有长尾握持部；所述长尾握持部的延伸方向与所述按压端的延伸方向一致。
在料液使用量大时，因现有喷头吐出量不足，须按压多次才能达到所需用量，一般需要倒入一量杯内使用，无法精确计算所需用量，且容易产生额外的料液消耗。因此需要吐出量大的定量喷液情况下，须匹配大吐出量的瓶子，瓶子体积变大、变重，增加长尾握持部的设计，提升使用时的便利性。本实施例中的长尾握持部如图1-4所示向容器11方向弯曲延伸，在朝向手提式旋盖5的一侧设置为与手指形状对应的凹凸曲面。所述凹凸曲面可以设为附加橡胶，增大与手指的静摩擦力。本实施例中长尾握持部为符合人体工学设计的形状结构，使得定量按压喷头适于用在重量较大的容器11上。搭配长尾握持部设计方便单手按压操作，按压板1让操作更顺手符合人体工学，同时可达到省力效果，使用场景见图5、图6。
作为一种实施例，所述手提式旋盖5设有导向槽，所述压头2设有与所述导向槽对应的导向凸起，所述压头2以所述导向凸起沿所述导向槽来回运动。导向槽和导向凸起的配合在压板1与压头2下压时，防止压头2歪斜而导致料体外漏或连接不稳定的问题。
作为另一种实施例，所述手提式旋盖5设有导向凸条，所述压头2设有与所述导向凸条对应的导向凹槽，所述压头2以所述导向凹槽沿所述导向凸条来回运动。本实施例为导向槽和导向凸起实施例的变形，其效果相同，本发明不限于此。
作为一种实施例，还包括泵体和吸管10；所述吸管10的一端连接所述泵体底部的入料口，另一端远离所述泵体并伸入料液中；所述吸管10远离所述泵体的一端设置有弯曲部C，所述弯曲部C朝所述压头2的喷液方向延伸。吸管10的弯曲设计，且弯曲方向与喷头的喷液方向一致。在料液过少的情况下，提起安装有定量按压喷头的容器11，前倾使得喷头靠近待喷液位置，而容器11中的料液随着容器11倾斜也在容器11底部流向靠近喷液方向的位置堆积。本实施例中的弯曲部C由于弯曲方向与喷液 方向一致，其尾端恰好能够与剩余料液堆积的位置重合，从而便于最大程度地抽取容器11中剩余料液，见图5和图6。
本实施例中的弯曲部C利用吸管10塑料材质的热塑性加工定位，使吸管10弯曲后在弯曲背部制作坚硬的筋条状的结构，防止吸管10回弹，使弯曲角度永久定型。
作为一种实施例，还包括止逆阀9；所述止逆阀9设于所述入料口，所述止逆阀9为塑料止逆阀9。止逆阀9舍弃传统钢珠型态而选用塑料材质，一是避免料液接触金属零件受到污染；二是塑料弹性大能够更好地保证气密性，使用时角度不受限，可提升使用便利性。
作为一种实施例，所述止逆阀9包括端缘部、弹性部、阀体；
所述端缘部与所述泵体连接，所述阀体的上端通过所述弹性部与所述端缘部相连，所述阀体的下端与所述入料口对应，所述阀体的下端与所述入料口贴合使所述泵体与容器11中的料液隔离，或与所述入料口分离使所述泵体与容器11中的料液连通。
作为一种实施例，还包括卡扣12；所述卡扣12可拆卸地连接于所述压板1的按压端与所述手提式旋盖5之间，从而对所述按压端限位。
作为一种实施例，还包括弹性体；所述压头2还包括喷口、管体4、环槽；
所述管体4与所述喷口形成料液通道，所述环槽同轴设置于所述管体4外侧，所述弹性体套设于所述管体4外壁上，且所述弹性体的一端设于所述环槽内，另一端抵设于所述手提式旋盖5上。本实施例中外置弹性体设计能够避免弹性体内置所引发的金属零件污染料体问题。
所述弹性体包括弹簧，或弹片，或弹性橡胶等，本发明不限于此。
基于同一构思，本发明还提供了一种具有定量按压喷头的容器11，如图5、6所示，包括所述定量按压喷头。
以下为一种可选的实施例：
定量按压喷头由压板(1)、压头(2)、弹簧(3)、管体(4)、手提式旋盖(5)、活塞(6)、气缸(7)、迫紧片(8)、止逆阀(9)、吸管(10)所组成。本实施例中弹性体为弹簧。
1.行程S1(见图1)：
下按压压板(1)，弹簧(3)被压缩，压头(2)带动管体(4)往下移动，此时活塞(6)受气缸(7)内壁摩擦力仍静止保持不动，管体(4)被活塞临时封闭的阀口逐渐露出开启，当压板(1)、压头(2)、管体(4)移动至图1中S1距离时，阀口完全开放。
2.行程S2(见图1):
压头(2)接续S1行程继续下压，压头(2)压缩弹簧(3)，管体(4)开始带动活塞(6)下移，至S2行程结束，此段行程压头(2)通过管体(4)带动活塞(6)挤压气缸(7)内部空间，而气缸(7)底部由止逆阀封闭，气缸(7)内料液进入管体(4)再由上方压头(2)喷挤出。实际操作过程中，图1中的S1与S2為连续行程。
3.复位(见图1)：
放开压板(1)，压头(2)受到弹簧(3)弹力向上运动，并带动管体(4)共同上移，初始时活塞(6)受气缸(7)内壁摩擦力静止不动，管体(4)下端的阀口上移直至没入活塞(6)而关闭。在阀口关闭后，压头(2)、管体(4)和活塞(6)在弹簧(3)的弹力作用下继续向上运动，让出气缸(7)内部空间，此时止逆阀(9)由于气缸(7)内气压小于容器内压力而被打开，气缸(7)底部的入料口同步开启，容器内料液进入气缸(7)，随着压头(2)的复位，所述料液逐步充满气缸(7)。压头(2)、管体(4)、活塞(6)继续向上，直到与压头(2)顶着压板(1)与手提式旋盖(5)的顶部限位结构接触，或直到弹簧(3)恢复原有长度，压头(2)停止向上移动，液体充满气缸(7)，止逆阀(9)关闭，至此复位完成。
以上所述仅为本发明的较佳实施例，本领域技术人员知悉，在不脱离本发明的精神和范围的情况下，可以对这些特征和实施例进行各种改变或等同替换。另外，在本发明的教导下，可以对这些特征和实施例进行修改以适应具体的情况及材料而不会脱离本发明的精神和范围。因此，本发明不受此处所公开的具体实施例的限制，所有落入本申请的权利要求范围内的实施例都属于本发明的保护范围。

Claims (11)

  1. 一种定量按压喷头，其特征在于，包括：压板、压头和用于与容器连接的手提式旋盖；所述压头穿设于所述手提式旋盖中，所述压板抵设于所述压头上；
    所述压板的一端为与所述手提式旋盖相连的固定端,另一端为按压端，所述压板以所述固定端为杠杆支点与所述压头联动，所述按压端与所述固定端形成第一力臂，所述压头与所述固定端形成第二力臂，所述第一力臂大于所述第二力臂。
  2. 根据权利要求1所述的一种定量按压喷头，其特征在于，所述手提式旋盖还设有长尾握持部；所述长尾握持部的延伸方向与所述按压端的延伸方向一致。
  3. 根据权利要求1所述的一种定量按压喷头，其特征在于，所述手提式旋盖设有导向槽，所述压头设有与所述导向槽对应的导向凸起，所述压头以所述导向凸起沿所述导向槽来回运动。
  4. 根据权利要求1所述的一种定量按压喷头，其特征在于，所述手提式旋盖设有导向凸条，所述压头设有与所述导向凸条对应的导向凹槽，所述压头以所述导向凹槽沿所述导向凸条来回运动。
  5. 根据权利要求1所述的一种定量按压喷头，其特征在于，还包括泵体和吸管；所述吸管的一端连接所述泵体底部的入料口，另一端远离所述泵体并伸入料液中；所述吸管远离所述泵体的一端设置有弯曲部，所述弯曲部朝所述压头的喷液方向延伸。
  6. 根据权利要求5所述的一种定量按压喷头，其特征在于，还包括止逆阀；所述止逆阀设于所述入料口，所述止逆阀为塑料止逆阀。
  7. 根据权利要求6所述的一种定量按压喷头，其特征在于，所述止逆阀包括端缘部、弹性部、阀体；
    所述端缘部与所述泵体连接，所述阀体的上端通过所述弹性部与所述端缘部相连，所述阀体的下端与所述入料口对应，所述阀体的下端与所述入料口贴合使所述泵体与容器中的料液隔离，或与所述入料口分离使所述泵体与容器中的料液连通。
  8. 根据权利要求1所述的一种定量按压喷头，其特征在于，还包括卡扣；所述卡扣可拆卸地连接于所述压板的按压端与所述手提式旋盖之间，从而对所述按压端限位。
  9. 根据权利要求1所述的一种定量按压喷头，其特征在于，还包括弹性体；所述压头还包括喷口、管体、环槽；
    所述管体与所述喷口形成料液通道，所述环槽同轴设置于所述管体外侧，所述弹性 体套设于所述管体外壁上，且所述弹性体的一端设于所述环槽内，另一端抵设于所述手提式旋盖上。
  10. 根据权利要求9所述的一种定量按压喷头，其特征在于，所述弹性体包括弹簧。
  11. 一种具有定量按压喷头的容器，其特征在于，包括如权利要求1-10任一所述定量按压喷头。
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