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WO2012030029A1 - Distributeur à pompe pour fluide - Google Patents

Distributeur à pompe pour fluide Download PDF

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Publication number
WO2012030029A1
WO2012030029A1 PCT/KR2011/000252 KR2011000252W WO2012030029A1 WO 2012030029 A1 WO2012030029 A1 WO 2012030029A1 KR 2011000252 W KR2011000252 W KR 2011000252W WO 2012030029 A1 WO2012030029 A1 WO 2012030029A1
Authority
WO
WIPO (PCT)
Prior art keywords
fluid
discharge
hollow piston
cylinder
negative pressure
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/KR2011/000252
Other languages
English (en)
Korean (ko)
Inventor
이용대
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Apollo Industrial Co Ltd
Original Assignee
Apollo Industrial Co Ltd
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
Application filed by Apollo Industrial Co Ltd filed Critical Apollo Industrial Co Ltd
Publication of WO2012030029A1 publication Critical patent/WO2012030029A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • B05B11/0062—Outlet valves actuated by the pressure of the fluid to be sprayed
    • B05B11/0064—Lift valves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1042—Components or details
    • B05B11/1066—Pump inlet valves
    • B05B11/1067—Pump inlet valves actuated by pressure
    • B05B11/1069—Pump inlet valves actuated by pressure the valve being made of a resiliently deformable material or being urged in a closed position by a spring
    • 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
    • B05B11/1097—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 with means for sucking back the liquid or other fluent material in the nozzle after a dispensing stroke
    • 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
    • B05B11/0089—Dispensing tubes
    • B05B11/0091—Dispensing tubes movable, e.g. articulated on the sprayer
    • 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

Definitions

  • the present invention relates to a fluid pumping dispenser, and more particularly, to a fluid pumping dispenser mounted in a container containing a fluid (contents) and capable of suction pumping and discharging the fluid by repeatedly pressing the pushhead.
  • a fluid pumping dispenser (FLUID PUMPING-DISPENCER) is installed in a container for storing a liquid or paste in a cosmetic or other fluid (contents) so that the fluid can be discharged by a predetermined amount by air pressure.
  • the conventional fluid pumping dispenser is coupled to an inlet (not shown) of the container and has a pumping unit 10 provided with a pressure chamber 11a to temporarily store and inhale / pump the fluid, and the pumping unit.
  • the pressure is applied to the pressure chamber 11a of the part 10 and is divided into a push head part 20 provided with a discharge port 21 for discharging the pumped fluid to the outside.
  • the pumping part 10 is provided coaxially at the inner center of the cap housing 12, which is mounted at the inlet of the container by screwing, and has a pressure chamber 11a formed therein, and the cylinder 11
  • the coil spring 13 provided in the pressure chamber 11a, the hollow piston 14 elastically supported at the upper end of the coil spring 13, and having a through hole 14a formed at one side thereof, and the hollow piston 14 are slidable.
  • the cylinder cap 15 penetrates and closes the upper end thereof, the connecting pipe 16 for connecting the outlet 21 of the push head part 20 and the upper end of the hollow piston 14, and the lower end of the cylinder 11.
  • a ball valve 17 placed on the valve seat portion 11b is provided.
  • the hollow piston 14 descends while overcoming the elastic force of the coil spring 13, whereby the fluid filled in the pressure chamber 11a of the cylinder 11 is passed through 14a) ⁇ the hollow part of the hollow piston 14 ⁇ is discharged to the outside through the connection pipe 16 ⁇ the discharge port (21).
  • the ball valve 17 abuts against the valve seat portion 11b by the lowering pressure of the fluid inside the cylinder 11 to block communication between the pressure chamber 11a and the inside of the container.
  • the hollow piston 14 When the user releases the push head portion 20, the hollow piston 14 is raised by the elastic support force of the coil spring 13, and the through hole 14a is closed to block the fluid discharge and at the same time the pressure chamber of the cylinder 11. A vacuum is formed at 11a. Therefore, the fluid stored in the container is sucked and filled in the pressure chamber 11a while raising the ball valve 17. By repeatedly pressing the push head portion 20, the fluid in the container is constantly discharged.
  • An object of the present invention is to provide a fluid pumping dispenser that can effectively prevent the fluid leakage phenomenon after finishing the use of the product by re-suctioning the remaining fluid inside the pushhead at the moment when the pushhead is raised while finishing the fluid discharge.
  • Another object of the present invention is to temporarily store the re-absorbed residual fluid directly above the cylinder to immediately discharge the temporarily stored residual fluid to the outside when the pushhead is lowered again, to prevent fluid leakage as well as fluid It is to provide a fluid pumping dispenser that can improve the discharge response of the.
  • the present invention for achieving the above object is a fluid pumping dispenser for suction pumping the fluid stored in the container to discharge to the outside;
  • the fluid pumping dispenser A large cap mounted to the inlet of the container by a screw coupling method; A cylinder which is installed coaxially inside the large cap and has a pressure chamber in which fluid is sucked and temporarily stored therein and a suction port is provided at a lower portion of the cap; A first check valve disposed directly above the inlet of the cylinder and selectively opening and closing the inlet of the cylinder according to a pressure chamber pressure change of the cylinder; A hollow piston having a lower end in the cylinder so as to be movable upward and downward, an upper end extending upward through a central part of the large cap, and having an outlet at a center of an upper end thereof; A second check valve positioned above the hollow piston and selectively opening and closing the outlet of the hollow piston according to a pressure chamber pressure change of the cylinder; A lower pressure part is inserted into and coupled to an upper end of the hollow piston, and a negative pressure forming member which forms a negative pressure chamber therein by being provided with an outward flange-type locking jaw formed on the
  • a discharge guide having a lower end portion in close contact with the circular lip seal of the negative pressure forming member and configured to be in communication with the negative pressure chamber; A lower end is supported on an upper portion of the large cap and an upper end is supported on an upper end of a cylindrical wall surface portion of the discharge guide to elastically support the hollow piston in an upward direction together with the discharge guide;
  • a push head having a central portion communicating with an upper end of the discharge passage of the discharge guide and having a discharge hole for discharging the fluid pumped through the discharge passage to the outside; It is characterized by including.
  • a valve rod having a cross-shaped cross-section so that the second check valve can be lifted and lowered at an outlet of the hollow piston and allow fluid discharge;
  • a valve head provided integrally with an upper end of the valve rod and opening / closing an outlet of the hollow piston at an upper portion as the valve rod moves up and down;
  • a locking step provided to protrude outward from a lower end of the valve rod so that the valve rod does not escape from the outlet of the hollow piston; It is characterized by including.
  • the outlet of the hollow piston is made of a tapered hollow hole that gradually narrows from the top to the bottom of the inner diameter;
  • the valve head of the valve rod is characterized in that it is received and closed in the outlet of the hollow piston.
  • a cylindrical guide wall surface protruding upward to surround the lower end of the coil spring on an upper portion of the large cap is provided to protrude upward;
  • the push head surrounds the discharge guide together with the upper end of the coil spring from the outside, and when the push head is pressed, a skirt wall surface surrounding the guide wall surface is formed.
  • the push head is provided so as to communicate with the discharge port is provided with a discharge bay to guide the discharge fluid to the lower side.
  • the fluid pumping dispenser made of the above configuration; After the fluid is discharged, the pressure applied to the push head is released, and when the discharge guide rises upward by the elastic restoring force of the coil spring, a vacuum pressure is instantaneously formed in the negative pressure chamber of the negative pressure forming member, which causes the discharge flow path of the discharge guide. And the remaining fluid which has not escaped to the outlet of the pushhead is re-sucked into the negative pressure chamber side of the negative pressure forming member.
  • the discharge guide is raised together with the push head after the use of the product, the fluid remaining at the discharge port side of the push head is sucked into the negative pressure chamber of the negative pressure forming member, so that the leakage phenomenon does not occur.
  • the second check valve provided inside the negative pressure forming member is of a plate type that immediately opens and closes the outlet of the hollow piston in accordance with the pressure chamber pressure change, and re-suctions residual fluid at the moment when the discharge guide moves upward with the push head.
  • the fluid pumping dispenser As the coil spring made of metal is disposed between the large cap and the discharge guide, there is no fear of corrosion because the coil spring is not in direct contact with the discharge fluid, and there is no fear of deterioration of the fluid.
  • FIG. 1 is a schematic cross-sectional view of a conventional fluid pumping dispenser.
  • Figure 2 shows a state in which the fluid pumping dispenser according to the invention mounted on the container.
  • FIG. 3 is a cross-sectional view showing the internal structure of the fluid pumping dispenser according to the present invention.
  • Figure 4 is a perspective view showing a first check valve applied to the fluid pumping dispenser according to the present invention.
  • FIG. 5 is a perspective view showing a second check valve applied to a fluid pumping dispenser according to the present invention.
  • FIG. 6 and 7 show the fluid pumping dispenser fluid discharge process of the present invention as the push head is lowered.
  • FIG 10 shows another embodiment of the first check valve according to the present invention.
  • Fluid pumping dispenser 100 .. Container 120. Fluid 200. Fluid pumping dispenser
  • Figures 2 to 5 show the configuration of the fluid pumping dispenser according to the invention
  • Figures 6 to 9 shows the operating state of the fluid pumping dispenser according to the present invention
  • Figure 10 Another embodiment of the first check valve according to the present invention is shown.
  • a fluid 120 (contents) is contained in the container 100 to which the present invention is applied, and the inlet 110 of the container 100 sucks / pumps the fluid contained by a user's manual operation to discharge the fluid to the outside.
  • the pumping dispenser 200 is mounted.
  • the fluid pumping dispenser 200 re-suctions the fluid 120 remaining in the discharge passage at the moment when the pushhead 290 rises again after the fluid is discharged while the pushhead 290 is pressed.
  • the cap 100 is mounted to the inlet 110 of the container 100, and is installed coaxially inside the large cap 210 and for sucking the fluid 120 at the bottom
  • the cylinder 220 provided with the inlet 221, the first check valve 230 for selectively opening and closing the inlet 221 of the cylinder 220, and the upper and lower sides of the cylinder 220 are disposed to be movable upwards.
  • 250 and the hollow piston 240 is coupled to the upper end of the open upper end of the engaging jaw 261 is formed and the inner lip seal 262 is formed to form a negative pressure chamber 263 therein
  • the negative pressure forming member 260 and the upper portion of the negative pressure forming member 260 are disposed to be slidable up and down and have a central portion.
  • a discharge guide 270 having a discharge flow path 271 disposed therebetween, and disposed between the discharge guide 270 and the large cap 210 to elastically support the hollow piston 240 upward with the discharge guide 270.
  • the coil spring 280 is assembled to communicate with the upper end of the discharge flow path part 271 of the discharge guide 270 and is provided with a discharge hole 291 for discharging the fluid pumped through the discharge flow path part 271 to the outside. It has a pushhead 290.
  • each of the components constituting the fluid pumping dispenser 200 according to the present invention is assembled by injection molding through a synthetic resin, except for the coil spring 280.
  • each component will be described in detail.
  • the large cap 210 is to be mounted to the inlet 110 of the container 100 made of a male screw, for this purpose, a female screw 211 is formed on the inner circumference of the large cap 210.
  • the upper surface of the large cap 211 is provided with a spring-mounted portion 212 in the form of a ring so that the lower end of the coil spring 280 is mounted, the coil spring 280 to the outside of the spring-mounted portion 212
  • the cylindrical guide wall surface 213 protruding upward to surround the lower end of the upper surface is provided to protrude upward.
  • the guide wall surface 213 not only surrounds the coil spring 280, but also stably guides the lifting / lowering operation of the push head 290.
  • the cylinder 220 is installed coaxially inside the large cap 210, and a pressure chamber 223 for sucking and temporarily storing the fluid 120 is provided therein, and a fluid 120 below the cylinder 220.
  • a suction port 221 is provided for suction.
  • the inlet 221 of the cylinder 220 has a valve seat 222 for seating the first check valve 230, and also includes a suction tube extending to the bottom of the container 100 in which the fluid 120 is contained.
  • 224 is fitted and coupled to guide fluid 120 suction.
  • Reference numeral 225 denotes a negative pressure hole perforated on the upper wall of the cylinder 220, and as the fluid 120 in the container 100 exits, external air flows through the negative pressure hole 225 to fill an empty space. It is intended to be.
  • the first check valve 230 is disposed in the valve seat 222 provided at the inlet 221 of the cylinder 220, and the inlet 221 is changed in accordance with the pressure change of the pressure chamber 223 of the cylinder 220. It is selectively opened and closed.
  • the first check valve 230 is a circular body 231 fitted to and coupled to an upper portion of the inlet 221 of the cylinder 220, and the circular body ( A valve plate 232 provided inside the 231 to open and close the inlet 221 of the cylinder 220, and a connecting bridge for integrally connecting the edge of the valve plate 232 to the inner wall of the circular body 231. 233).
  • Circular body 231 is made of a donut shape so as to be fitted to be arranged in the interference fitting method on the lower inner wall of the cylinder (220).
  • the valve plate 232 is formed of a circular plate having a predetermined diameter so as to cover the inlet 221 of the cylinder 220 at the upper part with a margin to open and close it, and the edge of the valve plate 232 is a circular body 231. It is configured to form a constant gap (S) with the inner wall of.
  • the valve plate 232 is integrally connected to the inner wall of the circular body 231 through the "S" shaped connection-bridges 233 having elastic restoring force.
  • one end of the "S" -shaped connection bridge 233 is connected to the edge of the valve plate 232, the other end thereof is connected to the inner wall of the circular body 231, the valve plate 232 is up and down direction ( A slight movement is possible with reference to the arrow direction of FIG. 4). Therefore, when the pressure in the pressure chamber 223 is lowered due to the lifting and lowering of the hollow piston 240, the valve plate 232 is lifted upwards and the fluid 120 in the container 100 is connected to the inlet 221 of the cylinder 220. Up through the gap (S) between the valve plate 232 and the circular body 231 is filled in the pressure chamber 223.
  • the resistance received when the fluid 120 exits is minimized.
  • Hollow piston 240 is made of a hollow hollow hollow body, the lower portion thereof is provided with a close contact portion 242 is in close contact with the inner wall of the cylinder 220, the shandong (see the arrow direction in Figure 3) to enable the cylinder 220 Is accommodated). And the upper end portion of the hollow piston 240 extends upward through the central portion of the large cap 210, the outlet 241 is formed in the center of the top surface.
  • the outlet 241 is made up of a hollow hole of a tapered shape gradually narrower from the upper side to the lower side, so that the valve head 253 of the second check valve 250, which will be described later, is accommodated so as to be closed securely. To do this.
  • Negative pressure forming member 260 is formed in a cylindrical shape of the upper and lower parts and the lower end is coupled to the upper end of the hollow piston 240 in a coaxial coercive manner.
  • Outwardly open upper end of the negative pressure forming member 260 is formed with an outward flange-shaped locking jaw 261, which is to allow the lower end of the discharge guide 270 to slide up and down a predetermined section without being separated. . That is, a sliding section is formed on the upper outer wall of the negative pressure forming member 260 from the locking step 261 to the lower side of the predetermined section.
  • a circular lip seal 262 is provided inside the open upper end of the negative pressure forming member 260 to form a negative pressure chamber 263 in a space between the upper end of the hollow piston 240.
  • the negative pressure forming member 260 is coupled to the upper end of the hollow piston 240 by an interference fit method, thereby moving up and down integrally with the hollow piston 240.
  • the second check valve 250 selectively opens and closes the outlet 241 of the hollow piston 240 according to the pressure change of the pressure chamber 223 of the cylinder 220.
  • the second check valve 250 includes a valve rod 251 which is disposed to be lowered and lowered at an outlet 241 of the hollow piston 240.
  • the valve rod 251 is integrally provided with the valve head 253 which is integrally provided to open and close the outlet 241 of the hollow piston 240 from above.
  • the valve rod 251 is configured to have a cross-shaped cross section to allow the fluid 120 to be discharged while freely descending from the outlet 241 of the hollow piston 240, the lower end of the locking projection 252 to protrude outwards It is provided so that the valve rod 251 is not separated upward from the outlet 241 of the hollow piston 240.
  • the valve head 253 is opened and closed with the valve rod 251 to open and close the outlet 241 of the hollow piston 240 from above, and its appearance corresponds to the shape of the outlet 241 of the hollow piston 240. It consists of. Accordingly, when the valve head 253 of the second check valve 250 is seated at the outlet 241 of the hollow piston 240, the movement of the fluid 120 through it is completely blocked.
  • the discharge guide 270 as shown in Figures 2 and 3, the cylindrical wall surface portion 272 that is slidably mounted to the outside of the upper end of the negative pressure forming member 260, and the cylindrical wall surface portion 272 of It is formed through a synthetic resin so as to have a discharge passage portion 271 provided in the center in the axial direction and penetrating the circular lip seal 262 of the negative pressure forming member 260.
  • Cylindrical wall portion 271 is disposed so that the lower end is slidable up and down outside the upper end of the negative pressure forming member 260, the lower inner side of the cylindrical wall is caught by the locking jaw 261 of the negative pressure forming member 260 at the time of maximum lift.
  • a departure prevention jaw 273 is provided to prevent it.
  • the top of the cylindrical wall surface portion 272 is provided with a spring-supporting portion 274 of the outward flange form to support the top of the coil spring 280.
  • the discharge flow path part 271 is provided in the center of the cylindrical wall surface part 272 in the axial direction, and the lower pressure part is in close contact with the circular lip seal 262 of the negative pressure forming member 260 and the negative pressure chamber of the negative pressure forming member 260. 263 is communicated with.
  • the coil spring 280 is a kind of compression spring made by winding a steel wire spirally, the lower end of which is supported by a spring-receiving portion 212 provided at an upper portion of the large cap 210, the upper end of which is a discharge guide ( It is arranged to be supported by the spring-supporting portion 274 provided on the upper end of the cylindrical wall surface portion 272 of 270. Therefore, the hollow piston 240 together with the discharge guide 270 is always elastically supported in the upward direction by the coil spring 280.
  • the coil spring 280 is disposed between the large cap 210 and the discharge guide 270 does not directly contact the discharged fluid 120, there is no fear of deterioration of the fluid 120.
  • the push head 290 is assembled so that the central portion in direct communication with the top of the discharge flow path (271) of the discharge guide 270, the inside of the fluid 120 pumped through the discharge flow path (271) outside Discharge openings 291 for discharging the air are formed in the horizontal direction. Therefore, the user may press the push head 290 directly to lower the hollow piston 240 together with the discharge guide 270 while compressing the coil spring 280.
  • the push head 290 wraps the discharge guide 270 with the upper end of the coil spring 280 from the outside, and when the push head 290 is pressed, a skirt wall surface for wrapping the guide wall surface 213 of the large cap 210 from the outside ( 292 is formed in a cylindrical shape, through which the push head 290 can be pressed and operated easily and accurately. have.
  • the push head 290 is provided with a discharge container 300 in the form of a tube inserted to communicate with the discharge port 291 to guide the discharge fluid 120 inclined downward, through which the fluid 120 in the direction desired by the user Can be discharged.
  • the discharge guide 270 and the hollow piston 240 are raised together with the push head 290 by the elastic support force of the coil spring 280, and the cylinder 220.
  • the pressure chamber 223 of the fluid 120 is sucked through the suction tube 224 is stored (see Fig. 2).
  • the user presses the pushhead 290 slightly as shown in FIG. 6 (see arrow A direction in FIG. 6);
  • the discharge guide 270 slides along the outside of the upper end of the negative pressure forming member 260 while overcoming the elastic supporting force of the coil spring 280 so that the upper surface of the discharge guide 270 is in contact with the upper end of the negative pressure forming member 260.
  • the lower end of the discharge passage portion 271 of the discharge guide 270 is maintained therebetween so as not to interfere with the opening and closing operation of the second check valve 250.
  • the user further pushes the pushhead 290 (see arrow A direction in FIG. 7);
  • the negative pressure forming member 260 and the hollow piston 240 descend together with the discharge guide 270.
  • the fluid 120 filled in the pressure chamber 223 of the cylinder 220 lifts the second check valve 250 upwardly, and then discharges 241 of the hollow piston 240 ⁇ negative pressure forming member 260 ⁇ discharge guide.
  • 270 is discharged to the outside through the discharge passage 271 ⁇ the discharge port 291 of the push head 290 ⁇ the discharge container 300 (see the dotted arrow direction in Fig. 7).
  • the first check valve 230 disposed at the inlet 221 of the cylinder 220 is in close contact with the valve seat 222 by the lower pressure of the fluid 120 in the pressure chamber 223 and thus the pressure chamber 223. Blocks communication with the inside of the container 100.
  • the closing operation of the first check valve 230 is performed from the moment when the hollow piston 240 descends because the fluid 120 is filled in the hollow piston 240. That is, the fluid 120 filled in the pressure chamber 223 at the moment when the hollow piston 240 descends together with the push head 290 pressurizes the first check valve 230 downward, and thus the cylinder 220.
  • the suction port 221 is firmly closed so that there is no pressure loss during the pumping operation.
  • the fluid 120 that has not been discharged may remain in the discharge port 291 and the discharge container 300 of the push head 290.
  • the second check valve 250 closes the outlet 241 of the hollow piston 240, and a vacuum pressure is applied to the negative pressure chamber 263 of the negative pressure forming member 260.
  • the fluid 120 remaining in the discharge port 291 of the push head 290 and 300 is re-sucked into the negative pressure chamber 263 (see the dotted arrow direction in FIG. 8).
  • the fluid 120 contained in the container 100 may be suction pumped through the fluid pumping dispenser 200 according to the present invention.
  • the fluid pumping dispenser 200 can be applied to a container product containing a high viscosity fluid.
  • the push head 290 is pressed and operated accurately without distortion through the guide wall surface 213 and the skirt wall surface 292 of the large cap 210, the fluid 120 is discharged through the 300 and the direction desired by the user It is discharged at an appropriate discharge pressure.
  • the first check valve 230 is applied as a plate type, as shown in FIG. 10, the first check valve 230A is a rod type provided with a reverse conical valve body at a lower end thereof. It may be arranged so that the valve seat portion 222 of the suction port 221 can be selectively opened and closed by the pressure change of the pressure chamber 223.
  • the first check valve 230 may be configured as a ball valve (steel ball).

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

Abstract

La présente invention concerne un distributeur à pompe pour fluide destiné à empêcher efficacement le phénomène de fuite de fluide après qu'un produit a été utilisé par ré-aspiration du fluide restant à l'intérieur d'une tête-poussoir au moment où celle-ci remonte après la sortie du fluide. A cet effet, le distributeur de fluide à pompe (200) de la présente invention comprend: un grand bouchon (210) accouplé à une entrée (110) d'un contenant (100) par vissage; un cylindre (220) coaxialement placé à l'intérieur du grand bouchon (210) et présentant à l'intérieur une chambre de pression (223) dans laquelle un fluide (120) est aspiré et temporairement stocké, et au niveau de sa partie inférieure, un orifice d'aspiration (221) pour aspirer le fluide (120); un premier clapet de non-retour (230), qui est placé directement au-dessus de l'orifice d'aspiration (221) du cylindre (220) et ouvre/ferme sélectivement l'orifice d'aspiration (221) du cylindre (220) suivant la variation de pression dans la chambre de pression (223) du cylindre (220); un piston creux (240) dont la partie d'extrémité inférieure est reçue par le cylindre (220) de manière à permettre un mouvement vers le haut et vers le bas, une partie d'extrémité supérieure pénétrant dans la partie centrale du grand bouchon (210) et s'étendant jusqu'à son côté supérieur, et présentant un orifice d'évacuation (241) formé au centre de la surface d'extrémité supérieure; un second clapet de non-retour (250), qui est situé au niveau de la partie supérieure du piston creux (240), et ouvre/ferme sélectivement l'orifice d'évacuation (241) du piston creux (240) suivant la variation de pression de la chambre de pression (223) du cylindre (220); un élément de formation de pression négative (260), dont la partie d'extrémité inférieure est accouplée de façon ajustée à l'extrémité supérieure du piston creux (240), présente une bosse en forme d'épaulement extérieur (261) à l'extérieur de l'extrémité supérieure ouverte, et présente un joint à lèvre rond (262) à l'intérieur de l'extrémité supérieure ouverte, de manière à former une chambre de pression négative (263) à l'intérieur; un guide d'évacuation (270) présentant une partie de surface de paroi cylindrique (272) dont la partie d'extrémité inférieure est placée de manière à permettre un coulissement vers le haut et vers le bas sur l'extérieur de la partie d'extrémité supérieure de l'élément de formation de pression négative (260) et une bosse d'empêchement de déviation (273) pour empêcher une déviation en venant en prise avec la bosse (261) lors d'une élévation maximale à l'intérieur de l'extrémité inférieure, et une partie de canal d'évacuation (271) qui est conçue axialement au centre de la partie de surface de paroi cylindrique (272) et communique avec la chambre de pression négative (263) lorsque la partie d'extrémité inférieure vient en contact étroit avec le joint à lèvre rond (262) de l'élément de formation de pression négative (260); un ressort hélicoïdal (280) dont l'extrémité inférieure porte sur la partie supérieure du grand bouchon (210) et dont la partie supérieure porte sur l'extrémité supérieure de la partie de surface de paroi cylindrique (272) du guide d'évacuation (270) de manière à retenir élastiquement le cylindre creux (240) vers le haut avec le guide d'évacuation (270); et une tête-poussoir (290) présentant une partie centrale assemblée de manière à communiquer avec l'extrémité supérieure de la partie de canal d'évacuation (271) du guide d'évacuation, et un orifice d'évacuation (291) conçu à l'intérieur pour évacuer vers l'extérieur le fluide qui est pompé à travers la partie de canal d'évacuation (271).
PCT/KR2011/000252 2010-08-31 2011-01-13 Distributeur à pompe pour fluide Ceased WO2012030029A1 (fr)

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CN104760754A (zh) * 2015-03-24 2015-07-08 中山市联昌喷雾泵有限公司 一种乳液泵
CN110498126A (zh) * 2018-05-18 2019-11-26 广州丽高塑料制品有限公司 一种外置弹簧泡沫泵
CN111655067A (zh) * 2018-02-05 2020-09-11 株式会社衍宇 流体容器
CN116831461A (zh) * 2023-06-25 2023-10-03 宁波顺邺五金有限公司 一种自动皂液器的驱动机构
WO2024088172A1 (fr) * 2022-10-25 2024-05-02 苏州卓兆点胶股份有限公司 Mécanisme d'alimentation en colle à grand volume d'écoulement

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CN104760754A (zh) * 2015-03-24 2015-07-08 中山市联昌喷雾泵有限公司 一种乳液泵
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CN111655067A (zh) * 2018-02-05 2020-09-11 株式会社衍宇 流体容器
CN111655067B (zh) * 2018-02-05 2023-05-23 株式会社衍宇 流体容器
CN110498126A (zh) * 2018-05-18 2019-11-26 广州丽高塑料制品有限公司 一种外置弹簧泡沫泵
WO2024088172A1 (fr) * 2022-10-25 2024-05-02 苏州卓兆点胶股份有限公司 Mécanisme d'alimentation en colle à grand volume d'écoulement
CN116831461A (zh) * 2023-06-25 2023-10-03 宁波顺邺五金有限公司 一种自动皂液器的驱动机构
CN116831461B (zh) * 2023-06-25 2023-11-28 宁波顺邺五金有限公司 一种自动皂液器的驱动机构

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