WO2024036726A1 - 降低高度且防渗液的预压缩泵以及具有该泵的容器 - Google Patents

降低高度且防渗液的预压缩泵以及具有该泵的容器 Download PDF

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Publication number
WO2024036726A1
WO2024036726A1 PCT/CN2022/124161 CN2022124161W WO2024036726A1 WO 2024036726 A1 WO2024036726 A1 WO 2024036726A1 CN 2022124161 W CN2022124161 W CN 2022124161W WO 2024036726 A1 WO2024036726 A1 WO 2024036726A1
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WIPO (PCT)
Prior art keywords
piston
compression pump
water storage
spring
assembly
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Application number
PCT/CN2022/124161
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English (en)
French (fr)
Inventor
成飞
康卫东
Original Assignee
深圳市三源医药包装用品有限公司
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Publication of WO2024036726A1 publication Critical patent/WO2024036726A1/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
    • B05B11/1043—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
    • B05B11/1001—Piston pumps
    • B05B11/1016—Piston pumps the outlet valve having a valve seat located downstream a movable valve element controlled by a pressure actuated controlling element
    • 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
    • B65D23/00—Details of bottles or jars not otherwise provided for
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D34/00—Containers or accessories specially adapted for handling liquid toiletry or cosmetic substances, e.g. perfumes
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D34/00—Containers or accessories specially adapted for handling liquid toiletry or cosmetic substances, e.g. perfumes
    • A45D34/02—Scent flasks, e.g. with evaporator
    • 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
    • B05B11/1073—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
    • B05B11/1087—Combination of liquid and air pumps
    • 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
    • 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 present invention relates to the technical field of pre-compression pumps, and in particular to a pre-compression pump with reduced height and anti-leakage and a container with the pump.
  • Pre-compression pumps are usually installed on containers and are used to spray various liquids stored in the containers, such as perfumes, pharmaceutical products, cosmetics, cleaning supplies, etc.
  • a pre-compression pump is a device that only ejects liquid when the liquid is subject to a specific minimum pressure in the water storage tank. This method can ensure the ejection at greater pressure, and the liquid can Presents better spray.
  • Pre-compression pumps with various structural forms have appeared in the prior art, such as application number 202022571129.1.
  • This kind of pre-compression pump is equipped with a water storage tank between the piston and the body.
  • the piston will squeeze the water storage tank when it moves downward with the main column.
  • the pressure in the water tank and water storage tank increases.
  • the piston will be pushed upward.
  • the sealing part leaves the amplification cap, the channel is opened, and the liquid enters the channel and Move upward until it is ejected from the nozzle.
  • the present invention proposes a pre-compression pump with reduced height and anti-leakage and a container with the pump.
  • the invention can realize The pre-compression pump sprays better and has a shorter overall height.
  • the technical solution adopted by the present invention is to design a pre-compression pump with reduced height and anti-leakage, including: a body, a first piston assembly movably installed inside the body, a press head assembly disposed on the top of the first piston assembly, and a press head assembly movably installed on the inside of the body.
  • the water outlet channel communicates with the water storage bin and the nozzle of the press head assembly, and the second piston has a thimble portion for closing the water outlet channel.
  • the first piston assembly includes: a first piston movably installed inside the body, a spring retainer installed inside the first piston, and a first spring supported between the body and the spring retainer.
  • the first piston and the body The space between them forms a water storage tank, which is designed inside the first piston to minimize the overall height of the pre-compression pump.
  • the second piston is movably installed in the spring holder, and the second spring is supported between the spring holder and the second piston.
  • the space above the second piston and the first piston forms a pressure transformer chamber, and the pressure transformer chamber and the water storage are Warehouses are connected.
  • the second piston will generate a larger displacement in the smaller diameter pressure transformer tank.
  • the pre-compression pump avoids the seepage process and directly uses a better Performance spray liquid.
  • the space between the lower part of the second piston and the spring retainer forms a compression chamber
  • the second piston is provided with an inner elastic expansion portion that expands outward, and the outer edge of the inner elastic expansion portion is in contact with the inner wall of the spring retainer. To seal the compression chamber.
  • the side wall of the body is provided with a vent hole, the outer edge of the bottom of the first piston expands outward to form a lower elastic expansion portion for sealing the water storage bin, and the body is provided with an exhaust hole located below the lower elastic expansion portion.
  • the lower elastic outer expansion portion of the air adjustment ridge moves downward to touch the exhaust adjustment ridge, it will deform to allow the air inside the water storage tank to leak outward.
  • the top of the body is open, and a collar piece is fixedly installed on the open mouth.
  • the collar piece is provided with a central hole that is placed on the first piston.
  • the first piston is provided with a tapered section that gradually increases in size from top to bottom. The center hole contacts the tapered section to form a line seal, ensuring that the liquid in the container will not leak under vibration and a certain negative pressure.
  • the top outer edge of the first piston expands outward to form an upper elastic outer expansion portion, and the outer edge of the upper elastic outer expansion portion contacts and seals with the inner wall of the body.
  • the top of the body is provided with an air inlet groove, and the upper elastic outer expansion portion can As the first piston moves downward to the air inlet groove, the gas in the external environment can pass through the gap between the collar piece and the first piston, and flow through the air inlet groove to between the upper elastic expansion part and the lower elastic expansion part. Then it enters the container through the exhaust hole of the body to maintain the pressure inside the container consistent with the external environment. This ensures the continuous use of the pump body.
  • the water outlet channel is located inside the first piston and above the second piston, the thimble portion is located at the top of the second piston, and at least one step is provided at one end of the water outlet channel close to the second piston.
  • the size of the thimble portion is from It gradually increases from top to bottom, and the edge of each step is in contact with the ejector part to form a line seal to prevent leakage from occurring when the pressure of the pump body is not in place.
  • the body has a water inlet channel connected to the water storage bin.
  • a one-way valve ball is placed at the top of the water inlet channel and a suction pipe is connected to the bottom end.
  • the outer periphery of the one-way valve ball is surrounded by at least three limiting ribs arranged at intervals.
  • the one-way valve ball moves up and down in the space surrounded by the limiting ribs. The gap between the limiting ribs allows the liquid in the container to enter the water storage tank more smoothly.
  • the invention also provides a container, which includes a bottle body, and the bottle body is equipped with the above-mentioned pre-compression pump.
  • the bottle body is provided with a bayonet, and the body is installed inside the bayonet, and a collar piece is fixedly installed on the top of the body.
  • the outer ring of the bayonet is covered with a fixing sleeve that clamps the collar piece to the bayonet to prevent premature The compression pump is detached and loose from the bottle.
  • the present invention installs a second piston and a second spring inside the first piston assembly, and designs a variable pressure chamber between the first piston assembly and the second piston.
  • the pressure in the water storage chamber does not reach a specific value.
  • the pressure on the second piston reaches a level that can overcome the pre-pressure of the second spring, the second piston moves downward to open the channel with a larger displacement, and the liquid is pumped outward.
  • the output pressure is large, effectively optimizing the spraying effect.
  • the pressure transformer chamber is arranged inside the first piston, the height can be reduced to the maximum extent.
  • Figure 1 is a schematic structural diagram of the pre-compression pump of the present invention
  • Figure 2 is a disassembled schematic diagram of the pre-compression pump of the present invention.
  • Figure 3 is a schematic diagram of the overall structure of the pre-compression pump of the present invention installed on the bottle;
  • Figure 4 is a schematic longitudinal section of the pre-compression pump of the present invention when it is exhausted;
  • Figure 5 is a schematic longitudinal section of the pre-compression pump of the present invention when it sucks liquid
  • Figure 6 is a schematic longitudinal section of the pre-compression pump of the present invention when used for spraying
  • the pre-compression pump proposed by the present invention is suitable for installation on a container storing liquid. By pressing the pre-compression pump, the liquid in the container can be sucked up and sprayed out.
  • the pre-compression pump includes main components such as a body 6, a first piston assembly, a press head assembly, a second piston 2, and a second spring 5.
  • the first piston assembly is installed inside the body 6.
  • the press head assembly is installed on the top of the first piston assembly.
  • a water storage bin 10 is provided between the first piston assembly and the body 6.
  • a water outlet channel 16 is provided inside the first piston assembly. The water outlet channel 16 communicates with the water storage bin 10 and the nozzle 22 of the button assembly. The liquid can be sprayed from the nozzle 22 through the water outlet channel 16 .
  • the second piston 2 is installed inside the first piston assembly, and the second spring 5 is supported between the second piston 2 and the first piston assembly.
  • the top of the second piston 2 is provided with a thimble portion 3, relying on the elastic force of the second spring 5 Hold the second piston 2 and press the ejector part 3 against the bottom of the water outlet channel 16 to seal it.
  • the second piston 2 moves downward.
  • the ejector part 3 is separated from the water outlet channel 16 to connect it.
  • the first piston assembly, the second piston 2 and the second spring 5 of the present invention together form a preloaded piston assembly with a shorter overall height and better spraying effect.
  • the first piston assembly includes a first piston 7, a first spring 8 and a spring retainer 1.
  • the first piston 7 is hollow inside and installed in the body 6.
  • the inner cavity of the first piston 7 is in contact with the body 6.
  • a water storage bin 10 is formed around them.
  • the volume of the water storage bin 10 changes with the up and down movement of the first piston 7.
  • the spring retainer 1 is fixedly installed inside the first piston 7, just below the water outlet channel 16.
  • the first spring 8 is supported between the body 6 and the spring holder 1, and the first spring 8 provides upward support force to the spring holder 1, which is equivalent to both the spring holder 1 and the first spring 8 being in the water storage tank 10 , there is a space between the spring retainer 1 and the inner wall of the first piston 7 to allow liquid to pass.
  • the spring holder 1 is provided with an opening facing the accommodation cavity.
  • the second piston 2 is movably arranged in the accommodation cavity of the spring holder 1.
  • the space between the top of the second piston 2 and the first piston 7 forms a pressure transformer chamber 14, which is The volume of the pressure chamber 14 changes with the up and down movement of the second piston 2.
  • the pressure changing chamber 14 is connected with the water storage chamber 10, that is, the liquid in the water storage chamber 10 can pass through the distance between the spring retainer 1 and the first piston 7. Enter the pressure transformer chamber 14 above the second piston 2.
  • the top outer edge of the second piston 2 expands slightly outward to form an inner elastic outer stretch portion 15.
  • the inner elastic outer stretch portion 15 fits the receiving cavity of the spring retainer 1.
  • the space forms a compression chamber, and the compression chamber and the pressure transformer chamber 14 are isolated by the inner elastic outer stretch portion 15.
  • the second spring 5 is located in the compression chamber and is supported between the second piston 2 and the spring holder 1.
  • the second piston 2 overcomes the pre-pressure of the second spring 5 and moves downward, the air in the compression chamber and the second spring 5 are compressed, the water outlet channel 16 is connected, and the pressure transformer chamber 14
  • the second piston 2 is pushed upward under the action of the compressed air and the second spring 5, and the water outlet channel 16 is closed.
  • the liquid must start to spray out only when the liquid in the water storage tank reaches a specific minimum pressure.
  • the sprayed liquid is linear or in the form of seepage. Only when greater pressing force is reached, the liquid can spray better.
  • the spraying effect greatly depends on the user's pressing force, and the user experience is not good.
  • the pre-compression pump proposed by the present invention can effectively avoid the problem of leakage. Its working principle is as follows: In order to make the pressure on the second piston 2 in the pressure transformer chamber 14 reach a specific minimum pressure - the pre-pressure of the second spring 5, press The head assembly needs to provide a greater pressure, and the second piston 2 will produce a greater moving distance.
  • the minimum pressure is F pre
  • the pressure F pressure that the head assembly needs to provide is:
  • the moving distance H 2 of the second piston is This ensures that the liquid will not spray when the pressure is smaller.
  • the pressing force reaches a greater level, the second piston 2 quickly opens a larger channel.
  • the pre-compression pump avoids the leakage process and directly sprays the liquid with better performance. , greatly optimizing the use experience of the pre-compression pump.
  • the press head assembly includes a nozzle 22, a press head 19 and a head cap 20.
  • the press head 19 is installed on the top of the first piston 7.
  • the head cap 20 covers the press head 19.
  • the nozzle 22 is a head cap.
  • the side hole of 20 is installed in the button head 19.
  • the inner end of the nozzle 22 is connected to the water outlet channel 16 through the button head 19.
  • the outer end of the nozzle 22 is flush with the outer wall of the side hole of the head cap 20 to keep the appearance of the button head assembly beautiful.
  • the top of the first piston 7 is provided with a water outlet channel 16, and the water outlet channel 16 is located above the second piston 2.
  • the thimble portion 3 is provided on the top of the second piston 2.
  • the thimble portion 3 can move up with the second piston 2 to close the water outlet.
  • the channel 16 may be moved downward to open the water outlet channel 16.
  • the water outlet channel 16 is provided with at least one step near the bottom end of the second piston 2.
  • the size of the ejector pin 3 gradually increases from top to bottom, and the edge of each step is in contact with the ejector pin. 3 contact to form a line seal, where the edge of the step refers to the corner position of the step protruding toward the water outlet channel 16.
  • the bottom end of the water outlet channel 16 is provided with two steps, the edge of the water outlet channel 16 is chamfered to form a first step, and the edge of the first step is provided with a circle of upwardly concave grooves.
  • a second step is formed, and the edges of the first step and the second step are in contact with the ejector part 3 to form a line seal.
  • the double line seal can effectively prevent the liquid in the water storage tank 10 from leaking out, effectively solving the problem of small pump bodies. Exudation occurs when pressure is applied.
  • the bottom of the body 6 is provided with a water inlet channel.
  • the top of the water inlet channel is located in the water storage bin 10 and is connected to it.
  • a one-way valve ball 9 is placed at the top of the water inlet channel, and a suction pipe 21 is connected to the bottom end.
  • the one-way valve ball 9 The outer periphery of the container 100 is surrounded by at least three limiting ribs arranged at intervals.
  • the one-way valve ball 9 moves up and down in the space surrounded by the limiting ribs. The gap between the limiting ribs allows the liquid in the container 100 to enter the water storage more smoothly.
  • Warehouse 10 10.
  • the side wall of the body 6 is provided with an exhaust hole 18, and the bottom outer edge of the first piston 7 expands outward to form a lower elastic expansion portion 12.
  • the lower elastic expansion portion 12 is in contact with the body 6
  • the inner wall of the body 6 is in close contact to seal the water storage chamber 10 between the first piston 7 and the body 6.
  • the body 6 is provided with an exhaust adjustment ridge 17, and the exhaust adjustment ridge 17 is located below the lower elastic expansion portion 12. , when the first piston 7 moves downward until the lower elastic outer stretch portion 12 contacts the exhaust adjustment ridge 17, the lower elastic outer stretch portion 12 deforms, and the air in the water storage chamber 10 flows from the lower elastic outer stretch portion 12 to the exhaust adjustment rib 17.
  • the gap between the air regulating ridges 17 overflows outward and enters the container 100 from the exhaust hole 18 .
  • the pre-compression pump can obtain different discharge volumes by adjusting the length of the exhaust adjustment ridge 17 of the body 6.
  • the length of the exhaust adjustment ridge 17 is lengthened, the contact between the first piston 7 and the exhaust adjustment ridge 17 As the position moves upward, the distance at which the water storage tank 10 remains sealed will be shortened, and the amount of liquid pumped out will also be reduced accordingly.
  • the top of the body 6 is open, and a collar piece 4 is fixedly installed on the open mouth.
  • the collar piece 4 is provided with a central hole that is placed on the first piston 7.
  • the first piston 7 is provided with a tapered shape that gradually increases in size from top to bottom. section, when the first piston 7 is not pressed down by external force, it is at the upper limit position under the support of the first spring 8. The tapered section contacts the center hole to form a line seal, isolating the inside of the body 6 from the external environment.
  • the outer edge of the top of the first piston 7 expands outward to form an upper elastic expansion portion 13.
  • the outer edge of the upper elastic expansion portion 13 contacts and seals with the inner wall of the body 6 to prevent the liquid in the water storage tank 10 from leaking outward.
  • the top of the body is provided with an air inlet groove 25.
  • the upper elastic expansion portion 13 can move downward to the air inlet groove 25 with the first piston 7.
  • the tapered section of the first piston 7 leaves the central hole downward and exhausts air.
  • the hole 18 is located between the upper elastic expansion part 13 and the lower elastic expansion part 12, so that the gas in the external environment can enter the body 6 through the gap between the collar piece 4 and the first piston 7 and the air inlet groove 25, and then It enters the container 100 through the exhaust hole 18 of the body 6 .
  • the reduced liquid in the container 100 can be replenished into the container 100 by external air through the exhaust hole 18, so as to prevent the vacuum generated inside the container 100 from causing the container 100 to deform or the pump body to lose function.
  • the external environment replenishes gas to the container 100 during the pressing start process.
  • the upper elastic expansion portion 13 of the first piston 7 replenishes air when it passes downward or upward through the air inlet groove 25.
  • the upper elastic expansion portion 13 After moving away from the air inlet groove, the outer edge of the upper elastic expansion portion 13 re-contacts with the inner wall of the body 6 for sealing, ensuring that the liquid in the water storage tank 10 will not leak outward.
  • the first spring 8, the one-way valve ball 9, the first piston 7, the spring retainer 1, the second piston 2 and the second spring 5 can be installed from the open end. components, and then install the collar piece 4.
  • the collar piece 4 and the body 6 are buckled and fixed, which not only facilitates the assembly of the pre-compression pump, but also prevents components from scattering and improves structural stability.
  • the sealing space After the sealing space is filled with liquid, press the press head assembly. As the pre-pressure piston assembly moves downward, the sealing space gradually becomes smaller. At this time, pressure is generated inside the liquid, and all parts in contact with the liquid are subject to a pressure.
  • the second piston 2 When the second piston 2 is When the pressure exceeds the pre-pressure of the second spring 5, the second piston 2 moves and separates from the water outlet channel 16 of the first piston 7, and the water outlet channel 16 is opened. At this time, the liquid enters the press head assembly through the water outlet channel 16, and is ejected from the nozzle 22 Spray outward.
  • the present invention also proposes a container 100, including: a bottle body 24, the bottle body 24 is equipped with the above-mentioned pre-compression pump, the suction tube of the pre-compression pump is placed in the bottle body 24, and the exhaust hole on the body 6 18 is connected with the inner cavity of the bottle body 24 so that when the liquid in the bottle body 24 decreases, the air in the external environment can be replenished into the bottle body 24 to maintain the function of the pre-compression pump.
  • the top of the bottle body 24 is provided with a tightened bayonet, the body 6 is inserted into the bayonet, the collar piece 4 is located outside the bayonet, and the outer ring of the bayonet is covered with a clamping and fixing collar piece 4 on the bayonet.
  • the fixed sleeve 11 prevents the pre-compression pump from falling off and loosening from the bottle body 24.

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

Abstract

一种降低高度且防渗液的预压缩泵以及具有该泵的容器（100），预压缩泵包括：本体（6）、活动安装在本体（6）内部的第一活塞组件、设于第一活塞组件顶部的按头组件、活动安装在第一活塞组件内部的第二活塞（2）、以及支撑在第二活塞（2）和第一活塞组件之间的第二弹簧（5），本体（6）与第一活塞组件之间设有存水仓（10），第一活塞组件的内部设有出水通道（16），出水通道（16）连通存水仓（10）和按头组件的喷嘴（22），第二活塞（2）具有用于封闭出水通道（16）的顶针部（3）。

Description

降低高度且防渗液的预压缩泵以及具有该泵的容器 技术领域
本发明涉及预压缩泵技术领域，尤其涉及降低高度且防渗液的预压缩泵以及具有该泵的容器。
背景技术
预压缩泵通常安装在容器上，用于喷洒容器中储存的各类液体，比如：香水、医药产品、化妆品、清洁用品等。一般来说，预压缩泵是一种只有当液体在存水仓内受到特定的最小压力时，发生液体向外喷出的装置，这种方式可以确保在更大压力时的喷出，液体能够呈现较好的喷洒。
现有技术中已出现结构形式多样的预压缩泵，例如申请号202022571129.1，这种预压缩泵在活塞与本体之间设有存水仓，活塞随主柱向下移动的过程中会挤压存水仓，存水仓内压强增大，当压强增大至超过预设弹簧对活塞的作用力时，活塞会被向上顶起，此时密封部分离开放大帽，通道被打开，液体进入通道并向上运动直至从喷嘴喷出，这种结构虽然能够减少压力达不到雾化条件时液体的渗出现象，但由于活塞接触液体的受压面面积较大，受力后活塞位移相对较短，液体向外泵出的压力较弱，喷洒出的液体通常是线形或者是以渗液的方式喷射，喷洒效果尚有欠缺。
因此，如何设计有效提高喷洒效果的预压缩泵以及容器是业界亟待解决的技术问题。
发明内容
为了解决现有技术存在的上述缺陷，本发明提出降低高度且防渗液的预压缩泵以及具有该泵的容器，通过在第一活塞组件的内部增设第二活塞和第二弹簧等部件，实现预压缩泵的喷洒效果更好，且整体高度更短。
本发明采用的技术方案是，设计降低高度且防渗液的预压缩泵，包括：本体、活动安装在本体内部的第一活塞组件、设于第一活塞组件顶部的按头组件、活动安装在第一活塞组件内部的第二活塞、以及支撑在第二活塞和第一活塞组件之间的第二弹簧，本体与第一活塞组件之间设有存水仓，第一活塞组件的内部设有出水通道，出水通道连通存水仓和所述按头组件的喷嘴，第二活塞具有用于封闭出水通道的顶针部。
优选的，第一活塞组件包括：活动设于本体内部的第一活塞、安装在第一活塞内部的弹簧保持器、以及支撑在本体与弹簧保持器之间的第一弹簧，第一活塞与本体之间的空间形成存水仓，存水仓设计在第一活塞内部，以最大限度的降低预压缩泵的整体高度。第二活塞活动设于弹簧保持器中，第二弹簧支撑在弹簧保持器与第二活塞之间，第二活塞的上方与第一活塞之间的空间形成变压仓，变压仓与存水仓连通。在第一活塞产生位移、存水仓受到压力时，在直径较小的变压仓内，第二活塞会产生一个较大的位移，预压缩泵避开了渗液过程，直接以较好的表现喷洒液体。
优选的，第二活塞的下方与弹簧保持器之间的空间形成压缩仓，第二活塞设有向外扩张的内弹性外张部，内弹性外张部的外缘与弹簧保持器的内壁接触以密封压缩仓。
优选的，本体的侧壁设有排气孔，第一活塞的底部外缘向外扩张形成用于密封存水仓的下弹性外张部，本体内部设有位于下弹性外张部下方的排气调节凸条，下弹性外张部下移至触碰排气调节凸条时发生变形，以允许存水仓内部的空气向外泄出。
优选的，本体的顶端为敞口，敞口固定安装有领片，领片设有套在第一活塞上的中心孔，第一活塞设有尺寸从上至下逐渐增大的锥形段，中心孔与锥形段接触形成线密封，确保容器内的液体不会在振动和一定负压的情况下发生泄漏。
优选的，第一活塞的顶部外缘向外扩张形成上弹性外张部，上弹性外张部的外缘与本体的内壁接触密封，本体的顶部设有进气槽，上弹性外张部能够随第一活塞下移至进气槽处，使外部环境中的气体能够通过领片与第一活塞之间的间隙，经过进气槽流动至上弹性外张部与下弹性外张部之间，再通过本体的排气孔进入容器内，维持容器内压力与外部环境保持一致，这样可以确保泵体的持续使用功能。
优选的，出水通道设于第一活塞的内部且位于第二活塞的上方，顶针部设于第二活塞的顶部，出水通道靠近第二活塞的一端设有至少一级台阶，顶针部的尺寸从上至下逐渐增大，每级台阶的边缘均与顶针部接触形成线密封，防止泵体压力未到位时发生渗液现象。
优选的，本体具有与存水仓连通的进水通道，进水通道的顶端放置有单向阀球、底端连接有吸管，单向阀球的外周被间隔设置的至少三条限位筋包围，单向阀球在限位筋围成的空间内上下活动，限位筋之间的间隙可以让容器内的液体更顺畅的进入存水仓。
本发明还提出了容器，包括：瓶体，瓶体安装有上述的预压缩泵。
优选的，瓶体设有卡口，本体安装在卡口内部，且本体的顶端固定安装有领片，卡口的外圈包覆有将领片夹持固定在卡口上的固定套，防止预压缩泵从瓶体上脱落和松动。
与现有技术相比，本发明在第一活塞组件内部安装第二活塞和第二弹簧，在第一活塞组件与第二活塞之间设计变压仓，在存水仓的压强未达到特定数值时，第二活塞的顶针部封闭出水通道，直到第二活塞受到的压力达到可以克服第二弹簧的预压力时，第二活塞向下移动，以一个较大的位移打开通道，液体向外泵出的压力大，有效优化喷洒效果。进一步的，由于变压仓设置在第一活塞的内部，能够最大限度的减少高度。
附图说明
下面结合实施例和附图对本发明进行详细说明，其中：
图1是本发明预压缩泵的结构示意图；
图2是本发明预压缩泵的拆分示意图；
图3是本发明预压缩泵安装在瓶体上的整体结构示意图；
图4是本发明预压缩泵排尽空气时的纵切面示意图；
图5是本发明预压缩泵吸入液体时的纵切面示意图；
图6是本发明预压缩泵喷洒使用时的纵切面示意图；
附图标记：1、弹簧保持器；2、第二活塞；3、顶针部；4、领片；5、第二弹簧；6、本体；7、第一活塞；8、第一弹簧；9、单向阀球；10、存水仓；11、固定套；12、下弹性外张部；13、上弹性外张部；14、变压仓；15、内弹性外张部；16、出水通道；17、排气调节凸条；18、排气孔；19、按头；20、头帽；21、吸管；22、喷嘴；23、间隙；24、瓶体；25、进气槽；100、容器。
具体实施方式
为了使本发明所要解决的技术问题、技术方案及有益效果更加清楚明白，以下结合附图及实施例，对本发明进行进一步详细说明。应当理解，此处所描述的具体实施例仅用以解释本专利，并不用于限定本专利。
本发明提出的预压缩泵适用于安装在存放液体的容器上，通过按压预压缩泵可以将容器中的液体吸取上来并向外喷出。具体来说，如图1所示，预压缩泵包含本体6、第一活塞组 件、按头组件、第二活塞2以及第二弹簧5等主要部件，第一活塞组件安装在本体6的内部，按头组件安装在第一活塞组件的顶部。第一活塞组件与本体6之间设有存水仓10，第一活塞组件的内部设有出水通道16，出水通道16连通存水仓10和按头组件的喷嘴22，存水仓10中的液体可以经过出水通道16从喷嘴22喷出。第二活塞2安装在第一活塞组件的内部，第二弹簧5支撑在第二活塞2与第一活塞组件之间，第二活塞2的顶部设有顶针部3，依靠第二弹簧5的弹力托住第二活塞2，将顶针部3抵在出水通道16的底部使其封闭，当第二活塞2受到的压力达到可以克服第二弹簧5的预压力时，第二活塞2向下移动，顶针部3脱离出水通道16使其接通。本发明的第一活塞组件、第二活塞2以及第二弹簧5共同构成一个整体高度更短、且喷洒效果更好的预压活塞组件。
为了更好的理解本发明的预压缩泵，以下结合实施例对预压缩泵的各部分结构进行详细说明。
如图1所示，第一活塞组件包含第一活塞7、第一弹簧8以及弹簧保持器1，第一活塞7的内部中空且安装在本体6中，第一活塞7的内腔与本体6之间围设形成存水仓10，存水仓10的体积随所述第一活塞7的上下移动而变化，弹簧保持器1固定安装在第一活塞7的内部，恰好位于出水通道16的下方，第一弹簧8支撑在本体6与弹簧保持器1之间，第一弹簧8向弹簧保持器1提供向上的支持力，相当于弹簧保持器1以及第一弹簧8均处于存水仓10中，弹簧保持器1与第一活塞7的内壁之间设有允许液体经过的间距。
弹簧保持器1设有开口朝向的容纳腔，第二活塞2活动设于弹簧保持器1的容纳腔中，第二活塞2的上方与第一活塞7之间的空间形成变压仓14，变压仓14的体积随第二活塞2的上下移动而变化，变压仓14与存水仓10连通，即存水仓10中的液体能够经过弹簧保持器1与第一活塞7之间的间距进入第二活塞2上方的变压仓14中。
第二活塞2的顶部外缘略微向外扩张形成内弹性外张部15，内弹性外张部15贴合接触弹簧保持器1的容纳腔，第二活塞2的下方与弹簧保持器1之间的空间形成压缩仓，通过内弹性外张部15隔绝压缩仓和变压仓14，第二弹簧5位于压缩仓中，并支撑在第二活塞2与弹簧保持器1之间。变压仓14的压力增大时，第二活塞2克服第二弹簧5的预压力下移，压缩仓内的空气和第二弹簧5均被压缩，出水通道16被接通，变压仓14的压力减小时，在压缩空气和第二弹簧5的作用下共同推动第二活塞2上移，出水通道16被关闭。通过将变压仓14、 第二活塞2以及第二弹簧5设计在第一活塞组件的内部形成新的预压活塞组件，与传统预压缩泵相比，预压活塞组件占用空间减少，以最大限度的降低预压缩泵的整体高度，使预压缩泵的结构更紧凑。
传统预压缩泵要达到喷洒效果，必须只有存水仓内的液体达到特定的最小压力时，液体开始向外喷出，但此时由于压力偏小，喷洒出的液体是线形或者是以渗液的方式喷射出，只有达到更大的按压力时，液体才可以呈现较好的喷洒，喷洒效果极大的依赖于使用者的按压力度，使用体验不好。
本发明提出的预压缩泵能够有效避免渗液问题，其工作原理如下：为了使变压仓14内的第二活塞2受到的压力达到特定的最小压力——第二弹簧5的预压力，按头组件需提供一个更大的压力，而且第二活塞2会产生一个较大的移动距离。以第一活塞7接触液体的横向面积为S 1，第二活塞2接触液体的横向面积为S 2，第一活塞7的移动距离为H 1，第二活塞2的移动距离为H 2，特定的最小压力为F 预，则按头组件需提供的压力F 压为：
Figure PCTCN2022124161-appb-000001
第二活塞的移动距离H 2为
Figure PCTCN2022124161-appb-000002
这样可以确保在较小压力时液体不会喷洒，按压力达到更大时，第二活塞2迅速打开一个较大的通道，预压缩泵避开了渗液过程，直接以较好的表现喷洒液体，极大的优化预压缩泵的使用体验。
如图1、图2所示，按头组件包含喷嘴22、按头19以及头帽20，按头19安装在第一活塞7的顶部，头帽20罩在按头19上，喷嘴22从头帽20的侧孔装入按头19中，喷嘴22的内端通过按头19连通出水通道16，喷嘴22的外端与头帽20的侧孔外壁平齐，以保持按头组件外形美观。第一活塞7的顶部设有出水通道16，并且出水通道16位于第二活塞2的上方，顶针部3设于第二活塞2的顶部，顶针部3可随第二活塞2上移至封闭出水通道16或者下移至打开出水通道16，出水通道16靠近第二活塞2的底端设有至少一级台阶，顶针部3的尺寸从上至下逐渐增大，每级台阶的边缘均与顶针部3接触形成线密封，此处台阶的边缘是指台阶向出水通道16凸出的边角位置。
在本发明的一些实施例中，出水通道16的底端设有两级台阶，出水通道16的边缘设有倒角形成第一级台阶，第一级台阶的边缘设有一圈向上凹陷的凹槽形成第二级台阶，第一级 台阶和第二级台阶的边缘均与顶针部3接触形成线密封，双重线密封能够有效防止存水仓10的液体向外渗出，有效解决泵体较小压力时产生渗液的现象。
本体6的底部设有进水通道，进水通道的顶部位于存水仓10中且与其连通，进水通道的顶端放置有单向阀球9、底端连接有吸管21，单向阀球9的外周被间隔设置的至少三条限位筋包围，单向阀球9在限位筋围成的空间内上下活动，限位筋之间的间隙可以让容器100内的液体更顺畅的进入存水仓10。
如图3、图4所示，本体6的侧壁设有排气孔18，第一活塞7的底部外缘向外扩张形成下弹性外张部12，该下弹性外张部12与本体6的内壁贴合接触，以密封第一活塞7与本体6之间的存水仓10，本体6内部设有排气调节凸条17，排气调节凸条17位于下弹性外张部12的下方，当第一活塞7下移至下弹性外张部12与排气调节凸条17接触时，下弹性外张部12发生变形，存水仓10中的空气从下弹性外张部12与排气调节凸条17之间的缝隙处向外溢出，从排气孔18进入容器100中。预压缩泵可以通过调整本体6的排气调节凸条17的长度来得到不同的喷出量，当排气调节凸条17的长度加长时，第一活塞7与排气调节凸条17的接触位置会上移，存水仓10保持密封的距离会减短，泵出的液体量也相应减少。
本体6的顶端为敞口，敞口固定安装有领片4，领片4设有套在第一活塞7上的中心孔，第一活塞7设有尺寸从上至下逐渐增大的锥形段，第一活塞7未受外力下压时，在第一弹簧8的支持力作用下处于上极限位置，锥形段与中心孔接触形成线密封，隔绝本体6内部与外部环境。
第一活塞7的顶部外缘向外扩张形成上弹性外张部13，上弹性外张部13的外缘与本体6的内壁接触密封，以防止存水仓10中的液体向外渗漏，本体的顶部设有进气槽25，上弹性外张部13能够随第一活塞7下移至进气槽25处，此时第一活塞7的锥形段向下离开中心孔、并且排气孔18位于上弹性外张部13与下弹性外张部12之间，使外部环境中的气体能够通过领片4与第一活塞7之间的间隙以及进气槽25进入本体6中，再通过本体6的排气孔18进入容器100内。即当按压预压缩泵向外喷洒液体时，容器100内减少的液体可以由外部的空气经排气孔18补充入容器100内，以免容器100内部产生真空导致容器100变形或泵体失去功能。
需要指出的是，外部环境向容器100补充气体发生在按压起步过程中，第一活塞7的上弹性外张部13向下或者向上经过进气槽25时进行补气，上弹性外张部13运动至离开进气槽后，上弹性外张部13的外缘与本体6的内壁重新接触密封，确保存水仓10的液体不会向外渗漏。
由于本体6的顶端为敞口，安装时可以从敞口处装入第一弹簧8、单向阀球9、第一活塞7、弹簧保持器1、第二活塞2以及第二弹簧5等各种部件，然后再安装领片4，领片4与本体6扣压固定，即既便于预压缩泵的组装，又能防止部件散落，提高结构稳定性。
下面详细说明预压缩泵的使用过程。
如图1至图3所示，在第一次按压按头组件时，按头组件带动预压活塞组件克服第一弹簧8的预压力下移，此时第二活塞2在第二弹簧5的预压力下与第一活塞7密封、单向阀球9与本体6密封、第一活塞7在下弹性外张部12的作用下与本体6密封，预压活塞组件与本体6滑动配合下移，连通的存水仓10和变压仓14内的空气随着密封空间的变小被压缩。如图4所示，当预压活塞组件下移到至第一活塞7的下弹性外张部12与本体6内的排气调节凸条17接触后，下弹性外张部12发生弹性变形，存水仓10内的压缩空气由排气调节凸条17处泄出，然后通过本体6侧面的排气孔18排出。
然后松开按头组件，按头组件和预压活塞组件在第一弹簧8的回弹力作用下开始上移，此时第一活塞7与本体6内设置的排气调节凸条17脱离，下弹性外张部12重新贴合本体6的内壁，存水仓10和变压仓14的连通空间恢复密封。如图5所示，随着预压活塞组件的上移，密封空间变大形成真空，此时容器内的液体在真空的作用力下，由吸管21经过单向阀球9进入存水仓10，重复几次上述按压过程之后，密封空间内的空气全部由液体替代。
在密封空间充满液体后按压按头组件，随着预压活塞组件下移，密封空间逐渐变小，此时液体内部产生压强，所有与液体接触的部位都受到一个压力，当第二活塞2受到的压力超过第二弹簧5的预压力时，第二活塞2产生移动与第一活塞7的出水通道16脱离，出水通道16被打开，此时液体经过出水通道16进入按头组件，由喷嘴22向外喷洒。同时，如图3、图6所示，由于容器100内液体减少形成真空，在预压活塞组件下移过程中，外部空气经过领片4与第一活塞7的间隙23以及进气槽25，通过本体6的排气孔18进入容器100内，确保容器100内压力与外环境一致，实现泵体的持续使用功能。
如图3所示，本发明还提出了容器100，包括：瓶体24，瓶体24安装有上述的预压缩泵，预压缩泵的吸管放置在瓶体24中，本体6上的排气孔18与瓶体24内腔连通，以便在瓶体24内的液体减少时，向瓶体24内补充外部环境中的空气，维持预压缩泵功能。瓶体24的顶部设有尺寸收紧的卡口，本体6插装于卡口中，领片4位于卡口外部，卡口的外圈包覆有将领片4夹持固定在卡口上的固定套11，防止预压缩泵从瓶体24上脱落和松动。
以上所述仅为本发明的较佳实施例而已，并不用以限制本发明，凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本发明的保护范围之内。

Claims (10)

  1. 降低高度且防渗液的预压缩泵，包括：本体、活动安装在所述本体内部的第一活塞组件、以及设于所述第一活塞组件顶部的按头组件，所述本体与所述第一活塞组件之间设有存水仓，所述第一活塞组件的内部设有出水通道，所述出水通道连通所述存水仓和所述按头组件的喷嘴；
    其特征在于，还包括：活动安装在所述第一活塞组件内部的第二活塞、以及支撑在所述第二活塞和所述第一活塞组件之间的第二弹簧，所述第二活塞具有用于封闭所述出水通道的顶针部。
  2. 根据权利要求1所述的预压缩泵，其特征在于，所述第一活塞组件包括：活动设于所述本体内部的第一活塞、安装在所述第一活塞内部的弹簧保持器、以及支撑在所述本体与所述弹簧保持器之间的第一弹簧，所述第一活塞与所述本体之间的空间形成所述存水仓；
    所述第二活塞活动设于所述弹簧保持器中，所述第二弹簧支撑在所述弹簧保持器与所述第二活塞之间，所述第二活塞的上方与所述第一活塞之间的空间形成变压仓，所述变压仓与所述存水仓连通。
  3. 根据权利要求2所述的预压缩泵，其特征在于，所述第二活塞的下方与所述弹簧保持器之间的空间形成压缩仓，所述第二活塞设有向外扩张的内弹性外张部，所述内弹性外张部的外缘与所述弹簧保持器的内壁接触以密封所述压缩仓。
  4. 根据权利要求2所述的预压缩泵，其特征在于，所述本体的侧壁设有排气孔，所述第一活塞的底部外缘向外扩张形成用于密封所述存水仓的下弹性外张部，所述本体内部设有位于所述下弹性外张部下方的排气调节凸条，所述下弹性外张部下移至触碰所述排气调节凸条时发生变形，以允许所述存水仓内部的空气向外泄出。
  5. 根据权利要求4所述的预压缩泵，其特征在于，所述本体的顶端为敞口，所述敞口固定安装有领片，所述领片设有套在所述第一活塞上的中心孔，所述第一活塞设有尺寸从上至下逐渐增大的锥形段，所述中心孔与所述锥形段接触形成线密封。
  6. 根据权利要求5所述的预压缩泵，其特征在于，所述第一活塞的顶部外缘向外扩张形成上弹性外张部，所述上弹性外张部的外缘与所述本体的内壁接触密封，所述本体的顶部设 有进气槽，所述上弹性外张部能够随所述第一活塞下移至所述进气槽处，以允许外部空气进入所述排气孔。
  7. 根据权利要求2所述的预压缩泵，其特征在于，所述出水通道设于所述第一活塞的内部且位于所述第二活塞的上方，所述顶针部设于所述第二活塞的顶部，所述出水通道靠近所述第二活塞的一端设有至少一级台阶，所述顶针部的尺寸从上至下逐渐增大，每级所述台阶的边缘均与所述顶针部接触形成线密封。
  8. 根据权利要求1所述的预压缩泵，其特征在于，所述本体具有与所述存水仓连通的进水通道，所述进水通道的顶端放置有单向阀球、底端连接有吸管，所述单向阀球的外周被间隔设置的至少三条限位筋包围，所述单向阀球在所述限位筋围成的空间内上下活动。
  9. 容器，包括：瓶体，其特征在于，所述瓶体安装有权利要求1至8任一项所述的预压缩泵。
  10. 根据权利要求9所述的容器，其特征在于，所述瓶体设有卡口，所述本体安装在所述卡口内部，且所述本体的顶端固定安装有领片，所述卡口的外圈包覆有将所述领片夹持固定在所述卡口上的固定套。
PCT/CN2022/124161 2022-08-15 2022-10-09 降低高度且防渗液的预压缩泵以及具有该泵的容器 WO2024036726A1 (zh)

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