WO2022037310A1 - 自关闭容器瓶盖 - Google Patents

自关闭容器瓶盖 Download PDF

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Publication number
WO2022037310A1
WO2022037310A1 PCT/CN2021/105435 CN2021105435W WO2022037310A1 WO 2022037310 A1 WO2022037310 A1 WO 2022037310A1 CN 2021105435 W CN2021105435 W CN 2021105435W WO 2022037310 A1 WO2022037310 A1 WO 2022037310A1
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WO
WIPO (PCT)
Prior art keywords
liquid outlet
valve
liquid
bead
channel
Prior art date
Application number
PCT/CN2021/105435
Other languages
English (en)
French (fr)
Inventor
赖展球
凌勇
王璨璨
Original Assignee
广州蓝月亮实业有限公司
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 CN202021761038.8U external-priority patent/CN213293304U/zh
Priority claimed from CN202120826735.5U external-priority patent/CN214825626U/zh
Application filed by 广州蓝月亮实业有限公司 filed Critical 广州蓝月亮实业有限公司
Publication of WO2022037310A1 publication Critical patent/WO2022037310A1/zh

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    • 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
    • B65D47/00—Closures with filling and discharging, or with discharging, devices
    • 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
    • B65D47/00—Closures with filling and discharging, or with discharging, devices
    • B65D47/04—Closures with discharging devices other than pumps
    • 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
    • B65D47/00—Closures with filling and discharging, or with discharging, devices
    • B65D47/04—Closures with discharging devices other than pumps
    • B65D47/06—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages
    • 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
    • B65D47/00—Closures with filling and discharging, or with discharging, devices
    • B65D47/04—Closures with discharging devices other than pumps
    • B65D47/20—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge

Definitions

  • the present invention relates to the field of liquid discharge from containers, and more particularly, to self-closing bottle caps of containers.
  • the existing liquid sealing means there is also a silicone plug cover through a cross opening, which has a self-closing function, but the technical structure is complex, the cost is high, and it is easy to concentrate liquid and produce spray or sputtering due to excessive extrusion force. It is not suitable for most products, and it is not easy to control the amount randomly.
  • a bead valve type aluminum can bottle cap structure in the existing liquid sealing means which has the function of self-closing, but a part of the liquid in the bottle cap cannot return, and the liquid that does not return will deteriorate or dry up, so it is not suitable for long-term repetition. used product packaging.
  • the present invention aims to overcome at least one defect of the above-mentioned prior art, and provides a self-closing container bottle cap, which is used to solve the problem that the liquid cannot flow back when the existing bottle cap is applied to a container, resulting in deterioration or drying.
  • the technical scheme adopted in the present invention includes:
  • a self-closing container bottle cap which is used to cover a container, includes a shell, a bead valve, a liquid outflow channel and a bead valve movable cavity, one end of the liquid outflow channel is communicated with the bead valve movable cavity, and the The other end of the liquid outflow channel is communicated with the outside of the bottle cap, the bead valve is placed in the bead valve movable cavity, and the bead valve movable cavity is provided with a liquid outlet on the side facing away from the liquid outflow channel , the liquid outlet communicates with the inner cavity of the container; the liquid outlet is provided with a valve seat, and the valve seat cooperates with the bead valve to block the liquid outlet;
  • the bead valve movable chamber is used to make the bead valve avoid the liquid outflow port and the liquid outflow channel.
  • the ball valve movable cavity is used to make the ball valve fall back to the valve seat and block the liquid outlet
  • the self-closing container bottle cap realizeds the self-closing of the container bottle cap by using the ball valve, the ball valve movable cavity, the valve seat and the liquid outlet.
  • the function of the bead valve movable cavity is to make the ball valve fall when the bottle cap is upright.
  • the ball valve and the valve seat can block the liquid outlet;
  • the ball valve is separated from the valve seat, avoiding the liquid outlet and the liquid outlet channel, so as to avoid the liquid outlet and the liquid outlet channel.
  • the liquid in the inner cavity of the container can flow out of the outside of the bottle cap.
  • the outflow direction of the liquid outflow channel refers to the flow direction of the liquid when the liquid is to flow out of the container through the liquid outflow channel.
  • the bead valve When the bottle cap is set on the container and the container is poured in the direction of liquid discharge, the bead valve will leave the valve seat and move to other positions in the active chamber of the bead valve, avoiding the liquid outlet and the liquid outflow channel. , the liquid in the inner cavity of the container will flow out from the liquid outlet, pass through the movable cavity of the bead valve, and flow out to the outside of the container along the liquid outflow channel; when the container is upright, the liquid will flow back along the liquid outflow channel under the action of gravity, and pass through the bead valve.
  • the ball valve After the active cavity of the valve flows from the liquid outlet to the inner cavity of the container, the ball valve will also fall back to the valve seat when the container is upright, and cooperate with the valve seat to block the liquid outlet and block the air circulation between the inner space of the container and the outside world. So that the liquid inside the container does not come into contact with the outside world, the problem of the liquid in the inner cavity of the container being deteriorated or dry will not occur.
  • the self-closing of the liquid outlet can be realized by a simple structure, so that the liquid can flow out of the bottle cap or back into the inner cavity of the container smoothly, and The liquid returned to the inner cavity of the container will not come into contact with the outside air, which avoids the problems of dryness and deterioration caused by the long-term contact of the liquid with the air.
  • the liquid outflow channel includes a first liquid outflow channel and a second liquid outflow channel; one end of the first liquid outflow channel is communicated with the movable chamber of the bead valve, and the other end is communicated with the second liquid outflow channel; One end of the second liquid outlet channel is communicated with one end of the first liquid outlet channel, and the other end is communicated with the outside of the container; the liquid outlet direction of the second liquid outlet channel is biased towards the first end of the bottle cap.
  • the liquid outflow channel is divided into two sections, one section is directly connected with the movable cavity of the bead valve, which is the first liquid outlet channel; the other section is the second liquid outlet channel, one end of which is connected with the first liquid outlet channel, and the other end is connected with the container.
  • the liquid outlet direction of the second liquid outlet channel is the direction in which the liquid finally flows out of the container, and this direction is biased towards the first side of the bottle cap, that is, the liquid outlet direction is also biased towards the first side.
  • the position of the connection between the first liquid outlet channel and the bead valve movable chamber, and the position of the liquid outlet on the bead valve movable chamber are far away from the first side.
  • the ball valve When the ball valve is tilted in the same direction, the ball valve can move to a position close to the first side in the movable chamber of the ball valve, and since the positions of the liquid outlet and the inlet of the first liquid channel are set away from the first side, the ball valve can avoid The liquid outlet and the first liquid outlet channel, the liquid in the inner cavity of the container can smoothly flow out of the container along the liquid outlet, the movable cavity of the bead valve, the first liquid outlet channel and the second liquid outlet channel.
  • cross-sectional length of the movable cavity of the ball valve is 2 to 4 times the diameter of the ball valve.
  • the cross-sectional length of the active cavity of the bead valve refers to the longest length on the cross-section, which determines the movable range of the bead valve in the cap when the container is poured toward the liquid outlet.
  • the cross-sectional length of the active cavity reaches the diameter of the bead valve
  • the ball valve can have a larger moving range while avoiding the liquid outlet and the first liquid outlet channel, and it is not easy to fall back to the valve seat.
  • the ball valve cannot have a large range of movement, because the liquid in the inner cavity of the container will pass through and fill the movable cavity of the ball valve when it flows out.
  • the active cavity of the bead valve will be filled with more liquid when the container is dumped, and the liquid backflow rate of the active cavity will be slow when the container is upright, and it cannot flow back to the inner cavity of the container before the bead valve falls back to the valve seat, resulting in A lot of liquid remains in the movable cavity of the bead valve, and the liquid will deteriorate or dry up in contact with the air for a long time. Therefore, the cross-sectional length of the active cavity of the bead valve is 2 to 4 times the diameter of the bead valve, which can ensure that the bead valve has a proper moving range when the container is dumped, and can avoid the liquid outlet and the first liquid outlet channel. The active cavity will not be filled with too much fluid.
  • the movable chamber of the ball valve is connected to the valve seat through an inclined plane; when the container is upright, the ball valve falls back to the valve seat along the inclined plane and blocks the liquid outlet.
  • the movable chamber of the bead valve is connected to the valve seat by the inclined surface, which can make the bead valve easier to leave the valve seat when the container is poured, avoid the liquid outlet and the first liquid outlet channel, and at the same time fall back to the valve under the action of gravity when the container is upright. seat, that is, to ensure that the liquid outlet can be blocked when the container is upright, so that the liquid in the inner cavity of the container is isolated from the outside air to avoid the problem of drying or deterioration of the liquid.
  • the cross section of the ball valve movable cavity is circular; the center of the ball valve movable cavity is in the liquid outlet direction of the second liquid outlet channel; the first liquid outlet channel and the ball valve movable cavity
  • the communication place of the bead valve, and the liquid outlet are all arranged in the semicircular range of the bead valve movable chamber away from the first side surface, and are all kept at a distance from the side wall of the bead valve movable chamber.
  • the cross section of the movable chamber of the ball valve is circular, so it is not easy for the ball valve to be stuck in a certain position when moving in the movable chamber.
  • the connection between the liquid outlet and the first liquid outlet channel and the movable cavity is set in a semicircle away from the first side, and the diameter (section length) of the movable cavity of the bead valve is 2 to 4 times that of the bead valve, Then, when the container is poured, the bead valve can move to other positions in the movable chamber of the bead valve, avoiding the liquid outlet and the first liquid outlet channel.
  • the bead valve is easier to move to other positions in the movable cavity of the bead valve when the container is poured, avoiding The liquid outlet and the first liquid outlet channel, the user does not need to dump the container strictly according to the liquid outlet direction of the second liquid outlet channel, but only needs to dump the container roughly according to the liquid outlet direction of the second liquid outlet channel, and the bead valve can also be avoided.
  • the liquid outlet and the first liquid outlet channel, and the bead valve is not easy to fall into the first liquid outlet channel to cause blockage, and the liquid in the inner cavity of the container can smoothly flow out of the bottle cap.
  • the cross section of the ball valve movable cavity is oval; the long axis of the ball valve movable cavity is in the liquid outlet direction of the second liquid outlet channel; the first liquid outlet channel is movable with the bead valve
  • the communication part of the cavity and the liquid outlet are all set in the semi-ellipse range of the movable cavity of the ball valve away from the first side surface, and are both kept at a distance from the side wall of the movable cavity of the ball valve.
  • a bead valve movable chamber with an oval cross-section is a more preferred solution.
  • the long axis of the bead valve movable chamber is in the liquid outlet direction of the second liquid outlet channel, so the movable chamber only needs to reserve a bead valve in the long axis direction.
  • the moving range of the bead valve can be kept as short as possible in the short axis direction, so that the volume of the entire bead valve movable cavity can be kept small, and it is not easy to cause liquid residue.
  • the long axis length (section length) of the movable cavity of the bead valve is 2 to 4 times that of the bead valve. times, when the container is poured, the bead valve can move to other positions in the movable chamber of the bead valve, avoiding the liquid outlet and the first liquid outlet channel.
  • the bead valve is easier to move to other positions in the movable cavity of the bead valve when the container is poured, avoiding The liquid outlet and the first liquid outlet channel, the user does not need to strictly follow the liquid outlet direction of the second liquid outlet channel when pouring the container, but only needs to roughly follow the liquid outlet direction of the second liquid outlet channel. Avoiding the liquid outlet and the first liquid outlet channel, the bead valve is not easy to fall into the first liquid outlet channel to cause blockage, and the liquid in the inner cavity of the container can smoothly flow out of the bottle cap.
  • angle formed by the inclined plane and the horizontal plane ranges from 10° to 30°.
  • the inclined plane of the movable chamber of the ball valve connecting the liquid outlet forms a certain angle with the horizontal plane, so that the ball valve can leave the valve seat or fall back to the valve seat along the inclined plane, but the angle should not be too large or too small, if the angle is too large , then when the container is dumped and then placed upright, the bead valve will fall back too quickly to the valve seat to block the liquid outlet, so that most of the liquid cannot flow back to the inner cavity of the container; if the angle is too small, the bead valve will be in the container.
  • it is not easy to fall back to the valve seat so that the liquid outlet will not be blocked, and the sealing function of the bottle cap will fail.
  • the container When the container is upright, it will fall back to the valve seat along the inclined plane to block the liquid outlet, and at the same time, it is also ensured that the falling speed of the ball valve on the inclined plane will not be too fast. back down to the valve seat.
  • a self-closing container bottle cap which is used to cover a container, includes a shell, a bead valve, a liquid outflow channel, a liquid outlet communicating with the inner cavity of the container, and a valve seat arranged at the liquid outlet, and a bead valve accommodating groove, the bead valve and the valve seat cooperate to block the liquid outlet, the bead valve accommodating groove is arranged on one side of the liquid outflow channel, and is connected with the liquid outflow channel. communicated with the liquid outlet, and the size of its opening is larger than the size of the bead valve; when the bottle cap is poured toward the liquid outflow direction of the liquid outflow channel, the bead valve accommodating groove is used for the The ball valve avoids the liquid outlet and the liquid outflow channel. When the bottle cap is upright, the ball valve accommodating groove is used to make the ball valve fall back to the valve seat and block the outlet. liquid port.
  • the self-closing container bottle cap uses the bead valve, the liquid outlet, the valve seat and the bead valve accommodating groove to realize the self-opening and closing of the liquid outlet. If the container is filled with liquid, the liquid in the container cavity can flow to the outside of the container along the liquid outlet and the liquid outflow channel. When set, the liquid will flow back to the inner cavity of the container along the liquid outlet channel and the liquid outlet, and the bead valve accommodating groove makes the ball valve fall back to the valve seat and block the liquid outlet.
  • the self-closing of the liquid outlet can be realized with a simple structure, so that the liquid can flow out of the bottle cap or back into the container smoothly, and no liquid will occur. Dryness and deterioration caused by inability to reflow.
  • the liquid outflow channel is provided with a limiting member for restricting the bead valve from entering the liquid outflow channel.
  • the liquid outflow channel is provided with a stopper, so that the bead valve cannot enter the liquid outflow channel. Even if the bead valve moves to the inlet of the liquid outflow channel when the container is dumped, it will fall back to the bead valve accommodating groove because the stopper cannot enter. position, avoiding the liquid outlet and the liquid outflow channel.
  • the liquid outflow channel includes a first liquid outflow channel and a second liquid outflow channel; the first liquid outflow channel is in communication with the bead valve accommodating groove and the second liquid outflow channel; the second liquid outflow channel One end of the liquid outlet channel is communicated with one end of the first liquid outlet channel, and the other end is communicated with the outside of the container; the liquid outlet direction of the second liquid outlet channel is biased towards the first side of the container, and the beads
  • the valve accommodating groove is arranged on the side of the first liquid outlet channel close to the first side surface; when the bottle cap is poured toward the liquid outlet direction of the second liquid outlet channel, the bead valve leaves the The valve seat is moved to the bead valve accommodating groove to avoid the liquid outlet and the first liquid outlet channel; the limiting member is a plurality of ribs, which are vertically arranged on the first liquid outlet channel. inner wall.
  • the liquid outflow channel is divided into two sections, one section is the first liquid outlet channel, and the bead valve accommodating groove is arranged on one side of the first liquid outlet channel; the other section is the second liquid outlet channel, one end of which is connected to the first liquid outlet channel The other end is connected to the outside of the container, and the liquid outlet direction of the second liquid outlet channel is the direction in which the liquid finally flows out of the container.
  • the bead valve accommodating groove is arranged on the side of the first liquid outlet channel close to the first side.
  • the purpose of this setting is: when the bottle cap is set on the container and the container is poured in the direction of the liquid outlet, that is, the direction of the first side, the beads
  • the valve can be moved into the bead valve accommodating groove to avoid the liquid outlet and the first liquid outlet channel, so that the liquid in the container cavity can flow out of the bottle cap along the liquid outlet, the first liquid outlet channel and the second liquid outlet channel.
  • the limiting member is a plurality of ribs vertically arranged on the inner wall of the first liquid outlet channel, which does not affect the flow of liquid in the first liquid outlet channel and effectively restricts the ball valve from entering the first liquid outlet channel.
  • the bead valve accommodating groove is composed of a lower end face, a side wall and an upper end face which are connected in sequence from bottom to top, the lower end face is closer to the liquid outlet than the upper end face, and the lower end face is adjacent to the horizontal plane.
  • the included angle ranges from 10° to 30°.
  • the inclined plane of the bead valve accommodating tank connecting the liquid outlet forms a certain angle with the horizontal plane, so that the ball valve can leave the valve seat or fall back to the valve seat along the inclined plane, but the angle should not be too large or too small. If the angle is too small, the bead valve will fall back to the valve seat too quickly to block the liquid outlet, so that most of the liquid cannot flow back to the inner cavity of the container; if the angle is too small, the bead valve will be in When the container is upright, it is not easy to fall back to the valve seat, so that the liquid outlet will not be blocked, and the sealing function of the bottle cap will fail.
  • the container covered by the bottle cap is a squeezable container, and the liquid in the container will flow out only when it is squeezed by external force. Since the second liquid outlet channel has a sufficient length, when the bottle cap and the container are inverted When , the liquid will fill the first liquid outlet channel and the second liquid outlet channel, and the air cannot enter the bottle cap and the container, so the pressure is balanced and the liquid cannot continue to flow.
  • the cross section of the bottle cap has a central axis, and the central axis is arranged at an angle with the horizontal plane, so that the The ball valve moves along the first liquid outlet channel and does not fall into the bead valve accommodating groove, and at the same time, the opening position of the second liquid outlet channel communicating with the outside of the casing is in a raised state.
  • the central axis of the cross section of the bottle cap also refers to the axis of the second liquid outlet channel, which is set at a certain angle with the horizontal plane, that is, when the bottle cap is laid flat, the second liquid outlet channel and the outside of the shell are arranged at a certain angle.
  • One side of the communicating opening position is higher than the other side of the axis, so that the opening position of the second liquid outlet channel is in a raised state.
  • the ball valve will leave the valve seat when the bottle cap is laid flat. Since the opening position of the second liquid outlet channel is raised, that is, the bottle cap is not tilted towards the liquid outlet direction, so the ball valve will move in the first liquid outlet channel. However, it cannot fall into the bead valve accommodating groove corresponding to the second liquid outlet channel;
  • the liquid will fill the first liquid outlet channel and the bead valve accommodating groove in a very short time.
  • the internal pressure reaches an equilibrium state, and the liquid will not automatically flow into the second liquid outlet channel in the absence of a temperature difference (ie, an increase in temperature or an increase in internal pressure/external force squeezes the container).
  • the cap and the container When the cap and the container are in a lying state, if the temperature rises, the internal pressure will increase, and the liquid will flow through the first liquid outlet channel to the second liquid outlet channel, until the liquid level of the outflow liquid is in contact with the second liquid outlet channel.
  • the opening position is the same, but since the opening position of the second liquid outlet channel is raised, the height of the external opening of the second liquid outlet channel is increased, so the liquid can only flow out of the shell under higher internal pressure, and under the general temperature difference conditions , the liquid will not automatically flow out of the shell. Therefore, when the bottle cap and the container are in an accidental lying state, the raised design of the second liquid outlet channel can reduce the risk of liquid outflow, and can also reduce the total amount of liquid outflow.
  • the cross-section of the communication cavity formed by the first liquid outlet channel and the bead valve accommodating groove is in the shape of a racetrack.
  • the bead valve accommodating groove arranged on one side of the first liquid outlet channel and the first liquid outlet channel are two sections of cylindrical cavity arranged in parallel, and two planes are tangent to the two sections of cylindrical cavity, thus forming
  • the cross-section of the "racetrack-shaped" communication cavity is provided, and the position of the ball valve in this communication space is not hindered.
  • the container bottle cap provided by the present invention can realize the self-closing of the liquid outlet with a simple structure through the cooperation between the bead valve, the bead valve movable cavity, the liquid outflow channel, the valve seat and the liquid outlet.
  • the liquid can smoothly flow out of the container or back into the container, and will not contact the outside air after returning to the inner cavity of the container, thereby avoiding the problems of drying and deterioration caused by long-term contact between the liquid and the air.
  • Another container bottle cap provided by the present invention also realizes the self-closing of the liquid outlet through the cooperation between the bead valve, the bead valve accommodating groove, the liquid outflow channel, the valve seat and the liquid outlet.
  • the groove is set on one side of the liquid outflow channel, so there is a limiter in the liquid outflow channel to restrict the bead valve from entering the liquid outflow channel, so that the bead valve falls back to the position of the bead valve accommodating groove, avoiding the liquid outlet and
  • the liquid outflow channel enables the liquid to flow out of the container through the liquid outflow channel smoothly.
  • FIG. 1 is a schematic cross-sectional view of the bottle cap of Example 1.
  • FIG. 1 is a schematic cross-sectional view of the bottle cap of Example 1.
  • FIG. 2 is a schematic perspective view of the bottle cap of Example 1.
  • FIG. 2 is a schematic perspective view of the bottle cap of Example 1.
  • FIG. 3 is a schematic cross-sectional view of a bottle cap of one of the alternative solutions of Example 1.
  • FIG. 3 is a schematic cross-sectional view of a bottle cap of one of the alternative solutions of Example 1.
  • FIG. 4 is a schematic cross-sectional view of a bottle cap of one of the alternatives of Example 1.
  • FIG. 4 is a schematic cross-sectional view of a bottle cap of one of the alternatives of Example 1.
  • Example 5 is a schematic cross-sectional view of the bottle cap of Example 1 when it is inclined toward the liquid discharge direction.
  • FIG. 6 is a schematic bottom view of the bottle cap of Example 1.
  • FIG. 6 is a schematic bottom view of the bottle cap of Example 1.
  • FIG. 7 is another schematic bottom view of the bottle cap of Example 1.
  • FIG. 8 is a schematic cross-sectional view of the bottle cap of Example 2.
  • FIG. 9 is a schematic top view of the bottle cap of Example 2.
  • FIG. 10 is a schematic structural diagram of the first liquid outlet channel and the bead valve accommodating groove of the bottle cap of Example 2.
  • FIG. 11 is a schematic cross-sectional structure diagram of the container covered by the bottle cap of Example 2 when it is laid flat.
  • FIG. 12 is a schematic view of the longitudinal cross-sectional structure of the container covered by the bottle cap of Example 2 when it is laid flat.
  • FIG. 13 is a schematic structural diagram of the specific design of the liquid outlet nozzle in Example 2.
  • Example 1 liquid outlet channel 100; first liquid outlet channel 110; second liquid outlet channel 120; ball valve movable chamber 200; ball valve 300; liquid outlet 400; valve seat 410; first side A;
  • Example 2 liquid outlet channel 10; first liquid outlet channel 11; rib 11a; second liquid outlet channel 12; bead valve accommodating groove 20; lower end face 21; side wall 22; upper end face 23; Liquid outlet 40; valve seat 41; liquid outlet 50; cover plug 51; sealing plunger 52;
  • This embodiment provides a self-closing container bottle cap, which is used to cover the container.
  • the container includes a container cavity, and the container cavity can contain a liquid that does not conflict with the material of the container.
  • the container and the container cap are especially suitable for liquids with a certain viscosity, such as liquid detergents, personal care products or Liquid flavorings, etc.
  • the bottle cap and the container interfere with each other to form a sealed whole.
  • the container cap includes a shell, a liquid outflow channel 100, a bead valve active chamber 200, a bead valve 300 placed in the bead valve active chamber 200, one end of the liquid outflow channel 100 and the bead valve active chamber 200 is connected, and the other end of the liquid outflow channel 100 is communicated with the outside of the bottle cap.
  • the ball valve movable cavity 200 is provided with a liquid outlet 400 on the side facing away from the liquid outflow channel 100 .
  • the liquid outlet 400 is provided with a valve seat 410, and the ball valve 300 is supported on the valve seat 410 when the bottle cap is upright.
  • the surface of the bead valve 300 is attached, thereby blocking the liquid outlet 400, so that the liquid in the inner cavity of the container is isolated from the outside air, and the problem of deterioration or drying of the liquid is avoided.
  • the density of the ball valve 300 is greater than the density of the liquid in the container cavity.
  • the ball valve 300 is a sphere, which can be metal or glass. If the viscosity of the liquid in the container cavity is higher, the density of the ball selected as the ball valve 300 should be higher. .
  • the liquid outflow channel 100 includes a first liquid outflow channel 110 and a second liquid outflow channel 120 .
  • One end of the first liquid outflow channel 110 is communicated with the bead valve movable cavity 200 , and the other end is connected to the bead valve movable chamber 200 .
  • One end of the second liquid outlet channel 120 is communicated with, and the other end of the second liquid outlet channel 120 is communicated with the outside of the container. It can be seen from Figures 1 and 2 that the direction of the liquid outlet channel 100 depends on the direction of the second outlet channel 120.
  • the flow direction of the liquid when 120 flows out of the container that is, the direction indicated by the dotted lines in the first liquid outlet channel 110 and the second liquid outlet channel 120 as shown in FIGS. 1 and 5 .
  • the liquid outlet direction of the second liquid outlet channel 120 is deviated to one side of the bottle cap, and the deviated side can be denoted as the first side A of the bottle cap.
  • the connection between the first liquid outlet channel 110 and the bead valve movable chamber 200 is set at the center of the bottle cap, and the liquid outlet 400 is set at the first side of the bottle cap
  • the side opposite to A that is, the side where both are far away from the liquid outlet direction of the second liquid outlet channel 120 (ie, the first side A).
  • the connection between the first liquid outlet channel 110 and the ball valve movable chamber 200 (or the entire first liquid outlet channel 100 ), and the position of the liquid outlet 400 in the bead valve movable chamber 200 should be far away from each other.
  • the condition of the first side A that neither should be arranged on the first side A of the cap.
  • the optimal position of the entire first liquid outlet channel 110 and the liquid outlet 400 in the bead valve movable chamber 200 should be set at the center position of the bottle cap or the side facing the first side A.
  • the first liquid outlet channel 110 and the liquid outlet port 400 are both arranged at the center of the bottle cap.
  • FIG. The side opposite to side A.
  • the ball valve movable chamber 200 is used to make the ball valve 300 avoid the liquid outlet port 400 and the first liquid outlet channel 110 . Specifically, as shown in FIG.
  • the ball valve 300 leaves the valve seat 410 and moves to other positions in the ball valve movable chamber 200 , to avoid the liquid outlet 400 and the liquid outflow channel 100, the liquid in the inner cavity of the container can flow out along the liquid outlet 400, and then flow out of the container along the first liquid outlet channel 110 and the second liquid outlet channel 120 after passing through the bead valve movable cavity 200.
  • the flow direction of the liquid is shown in the direction indicated by the dotted line in FIG. 5 .
  • the ball valve movable chamber 200 when the container is upright, the ball valve movable chamber 200 is used to make the ball valve 300 fall back to the valve seat 410 and block the liquid outlet 400 .
  • the movable chamber 200 of the ball valve is connected to the liquid outlet 400 through the inclined surface, so when the container is poured, the ball valve 300 can easily leave the valve seat 410 and avoid the liquid outlet 400 and the first outlet port 400 .
  • the ball valve 300 In the liquid channel 110 , when the container is upright, the ball valve 300 can fall back to the valve seat 410 along the inclined plane, and cooperate with the valve seat 410 to block the liquid outlet 400 .
  • the angle ⁇ formed by the inclined plane of the ball valve movable chamber 200 connecting the liquid outlet 400 and the horizontal plane should not be too large or too small. If the included angle ⁇ is too large, the ball valve 300 will When the container is upright, it falls back to the valve seat 410 too quickly, blocking the liquid outlet 400, so that most of the liquid cannot flow back to the inner cavity of the container; if the included angle ⁇ is too small, the bead valve 300 is not easy to fall back when the container is upright To the valve seat 410, the liquid outlet 400 will not be blocked, and the sealing function of the bottle cap will fail.
  • the range of the included angle formed by the inclined plane and the horizontal plane is preferably between 10° and 30°, and the most preferable angle is 20°. If the angle of the included angle ⁇ is 20°, the ball valve 300 can fall back to the valve seat 410 along the inclined plane to block the liquid outlet 400, and at the same time, it is also ensured that the falling speed of the ball valve 300 on the inclined plane will not be too fast, and it can be Most of the liquid flows back to the inner cavity of the container through the liquid outlet 400 and then falls back to the valve seat 410 to block the liquid outlet 400 .
  • the section length D of the ball valve movable chamber 200 is 2 to 4 times the diameter d of the ball valve 300 , preferably, the section length D is 3 times the diameter d.
  • the cross-sectional length D of the ball valve movable cavity 200 determines the movable range of the ball valve 300 .
  • the diameter d is 2 to 4 times, it can be seen from FIGS. 1 , 5 and 6 that the bead valve 300 can move more in the bead valve movable chamber 200 while avoiding the liquid outlet 400 and the first liquid outlet channel 110 . range, it is not easy to fall back to the valve seat 410.
  • the movement range of the ball valve 300 in the ball valve movable chamber 200 cannot be too large, because the liquid in the container cavity flows out of the bottle cap through the liquid outlet 400, the first liquid outlet channel 110 and the second liquid outlet channel 120.
  • the ball valve movable cavity 200 will be filled with more liquid, and the container will be filled with more liquid. In the upright position, more liquid in the ball valve movable chamber 200 will have a slower backflow speed, and it cannot flow back to the inner cavity of the container before the ball valve 300 falls back to the valve seat 410 , resulting in more liquid remaining in the ball valve movable chamber 200 . , since these residual liquids will continue to be in contact with the air, there will be problems of deterioration or dryness.
  • the dry liquid may cause the bead valve 300 to be fixed at the valve seat 410, and even if the container is dumped, it cannot leave the valve seat 410, resulting in The cap does not work properly; and the spoiled liquid contaminates the liquid flowing out of the container cavity the next time the container is poured.
  • the cross-sectional length D of the bead valve movable cavity 200 is 2 to 4 times the diameter d of the bead valve 300, which can ensure that the bead valve 300 has a proper movement range when the container is dumped, and can avoid the first liquid outlet channel 110 and the The liquid outlet 400 will not cause too much liquid to flow into the movable cavity 200 of the ball valve.
  • the cross section of the ball valve movable cavity 200 can be circular or oval, and the ball valve 300 will not be stuck in a certain position when moving in the ball valve movable cavity 200 whose cross section is circular or oval.
  • the ball valve 300 can be moved to other positions of the ball valve movable chamber 200 in time when the container is dumped, avoiding the liquid outlet 400 and the first liquid outlet channel 110, and can smoothly fall back to the valve seat 410 to block the outlet when the container is upright. Liquid port 400.
  • the center of the ball valve movable cavity 200 is in the liquid outlet direction of the second liquid outlet channel 120
  • the first liquid outlet channel 110 communicates with the ball valve movable cavity 200
  • the liquid outlet 400 are located in the semicircular range of the ball valve movable cavity 200 away from the first side A, and the cross-sectional length of the ball valve movable cavity 200, that is, the diameter, is 2 to 4 times the diameter of the ball valve 300, then
  • the bead valve 300 can move to other positions in the bead valve movable chamber 200 , avoiding the liquid outlet port 400 and the first liquid outlet channel 110 .
  • the communication between the liquid outlet 400 and the first liquid outlet channel 110 and the bead valve movable chamber 200 is kept at a distance from the side wall of the bead valve movable chamber 200.
  • the advantage of this arrangement is that the bead valve is in the second outlet from the container.
  • the liquid outlet direction of the liquid channel 120 that is, the direction of the first side A, is more likely to fall into other positions of the bead valve movable cavity 200, avoiding the liquid outlet 400 and the first liquid outlet channel 110, so the user does not need to strictly follow the second
  • the liquid outlet direction of the liquid outlet channel 120 dumps the container, and the container only needs to be dumped roughly according to the liquid outlet direction of the second liquid outlet channel 120, and the bead valve 300 can also avoid the liquid outlet 400 and the first liquid outlet channel 110, the bead valve 300 It is not easy to fall into the first liquid outlet channel 110 to cause blockage, and the liquid in the inner cavity of the container can smoothly flow out of the bottle cap.
  • the cross section of the ball valve movable cavity 200 is preferably oval, and the long axis of the ball valve movable cavity 200 is in the liquid outlet direction of the second liquid outlet channel 120 .
  • the connection between the first liquid outlet channel 110 and the ball valve movable cavity 200, and the liquid outlet 400 are all set in the semicircular range of the ball valve movable cavity 200 away from the first side A, and the cross-sectional length of the ball valve movable cavity 200 is long.
  • the bead valve 300 can move to other positions of the bead valve movable chamber 200 to avoid liquid discharge The port 400 and the first liquid outlet channel 110.
  • connection between the liquid outlet 400 and the first liquid outlet channel 110 and the ball valve movable cavity 200 is arranged in the long axis direction of the ball valve movable cavity 200 .
  • the liquid outlet 400 is arranged at one end of the long axis away from the first side A, or at the center of the entire bead valve movable cavity 200 (the liquid outlet 400 ′ shown in FIG. 7 ) 7, the position of the first liquid outlet channel 110 is not shown, and the position setting of the communication place with the bead valve movable cavity 200 may refer to the position setting of the liquid outlet 400 and the liquid outlet 400'.
  • the liquid outlet 400 or the liquid outlet 400 ′ keeps a distance from the side wall of the bead valve movable chamber 200 , which means the position of the connection between the first liquid outlet channel 110 and the bead valve movable chamber 200 It will also keep a distance from the side wall of the ball valve movable chamber 200 .
  • the advantage of this setting is that when the container is poured into the liquid outlet direction of the second liquid outlet channel 120 , the ball valve 300 can more easily enter other parts of the ball valve movable chamber 200 .
  • the bead valve 399 is not easy to enter the first liquid outlet channel 110 and cause blockage when the container is poured, and the liquid in the inner cavity of the container can smoothly flow out of the bottle cap.
  • the ball valve movable chamber 200 with an elliptical cross-section is provided with a liquid outlet 400 and a connection point with the first liquid outlet channel 110 in the direction of its long axis, and the movement range of the ball valve 300 is reserved in the direction of the long axis, thereby It is realized that the bead valve 300 avoids the liquid outlet 400 and the first liquid outlet channel 110 when the container is poured. Therefore, the length of the ball valve movable cavity 200 can be kept as short as possible in the direction of its short axis, and it is only necessary to ensure that the connection between the liquid outlet 400 and the first liquid outlet channel 110 is kept at a distance from the side wall of the ball valve movable cavity 200 That's it.
  • the ball valve movable cavity 200 with an oval cross section can maintain a smaller volume, which avoids the problem that liquid is easily left in the ball valve movable cavity 200 .
  • This embodiment provides a self-closing container bottle cap, which is used to cover the container.
  • the container includes a container cavity, and the container cavity can contain a liquid that does not conflict with the material of the container.
  • the container and the container cap are especially suitable for liquids with a certain viscosity, such as liquid detergents, personal care products or Liquid flavorings, etc.
  • the bottle cap and the container interfere with each other to form a sealed whole.
  • the container cap includes a housing, a liquid outflow channel 10 , a bead valve accommodating groove 20 , a bead valve 30 , a liquid outlet 40 communicating with the inner cavity of the container, and a valve seat disposed at the liquid outlet 40 41.
  • the ball valve 30 is supported on the valve seat 41 when the bottle cap is upright.
  • the valve seat 41 is a conical surface with a diameter smaller than the diameter of the bead valve 30.
  • the surface of the valve seat 41 is in contact with the surface of the bead valve 30, thereby blocking
  • the liquid outlet 40 is formed to block the contact between the liquid in the inner cavity of the container and the outside air.
  • the density of the bead valve 30 should be greater than the density of the liquid in the container cavity, which can be metal or glass, and if the viscosity of the liquid in the container cavity is higher, the density of the ball selected as the bead valve 30 should be higher.
  • the ball valve accommodating groove 20 is arranged on one side of the liquid outflow channel 10 and communicates with the liquid outflow channel 10 and the liquid outlet 40 , and the size of its opening is larger than that of the bead valve 30 .
  • the cross-sectional width is slightly larger than the diameter of the bead valve 30 .
  • the liquid outflow channel 10 includes a first liquid outflow channel 11 and a second liquid outflow channel 12 .
  • the first liquid outlet channel 11 is directly connected with the bead valve accommodating groove 20 and the liquid outlet 40
  • one end of the second liquid outlet channel 12 is connected with the first liquid outlet channel 11
  • the other end is connected with the outside of the container Connected.
  • the bead valve accommodating groove 20 is arranged on one side of the first liquid outlet channel 11 .
  • the liquid direction refers to the flow direction of the liquid when the liquid is to flow out of the bottle cap through the second liquid outlet channel 12, that is, the dotted line in the first liquid outlet channel 11 and the second liquid outlet channel 12 as shown in FIG. direction.
  • the liquid outlet direction of the second liquid outlet channel 12 is biased to one side of the bottle cap, and the side that is biased towards the bottle cap can be recorded as the first side A, and the bead valve accommodating groove 20 is provided in the first side A.
  • the liquid outlet channel 11 is close to the side of the first side A.
  • the bead valve accommodating groove 20 is used to make the bead valve 30 avoid the liquid outlet 40 and the liquid outflow channel 10.
  • the ball valve 30 leaves the valve seat 41 and moves in the direction of the first liquid outlet channel 11 : the aperture of the first liquid outlet channel 11 is slightly larger than the diameter of the bead valve 30 , so that the ball valve 30 can leave the valve seat 41 after the bead valve 30 leaves the valve seat 41 .
  • the bead valve accommodating groove 20 Before falling into the bead valve accommodating groove 20, it can move a short distance along the first liquid outlet channel 11; because the bead valve accommodating groove 20 is set on one side of the first liquid outlet channel 11, and is close to the first side surface Therefore, when the container is poured in the direction of the liquid outlet of the second liquid outlet channel 12, that is, the direction of the first side A, the ball valve 30 will fall into the ball valve accommodating groove 20 after leaving the valve seat 41, then The liquid in the inner cavity of the container flows out from the liquid outlet 40, and the bead valve 30 has been avoided to the bead valve accommodating groove 20, so the liquid will flow to the first liquid outlet channel 11 and out of the bottle cap from the second liquid outlet channel 12.
  • the liquid flows back from the second liquid outlet channel 12 to the liquid outlet 40 through the first liquid outlet channel 11 and returns to the inner cavity of the container, and the bead valve 30 leaves the bead valve accommodating groove 20 and falls back under the action of gravity
  • the liquid outlet 40 is blocked, and the air circulation between the inner cavity of the container and the outside is blocked, so as to keep the liquid in the inner cavity of the container from deteriorating.
  • the first liquid outlet channel 11 is provided with a limiting member for restricting the entry of the bead valve 30 into the first liquid outlet channel 11. Even if the bead valve 30 moves to the first liquid outlet channel 11 when the container is poured, it will be limited due to the position limit. If the parts cannot enter the first liquid outlet channel 11 , the ball valve 30 falls back into the ball valve accommodating groove 20 to avoid the first liquid outlet channel 11 and the liquid outlet port 40 .
  • the limiting member is a plurality of ribs 11a, which are vertically arranged on the inner wall of the first liquid outlet channel 11.
  • the ribs 11a are elongated, and the apertures of the first liquid outlet channel 110 are provided with several ribs 11a.
  • the diameter is smaller than that of the bead valve 30 , so the bead valve 30 cannot enter the first liquid outlet channel 11 .
  • the plurality of ribs 11a vertically arranged on the inner wall of the first liquid outlet channel 11 will not affect the flow of liquid in the first liquid outlet channel 11 and can effectively restrict the ball valve 30 from entering the first liquid outlet channel 11 .
  • the ball valve accommodating groove 20 is composed of a lower end face 21 , a side wall 22 and an upper end face 23 connected in sequence from bottom to top.
  • the lower end face 21 is closer to the liquid outlet 40 than the upper end face 23 , and the lower end face 21
  • the end surface 21 is an inclined surface, and the included angle ⁇ formed with the horizontal plane ranges from 10° to 30°, and the angle of the included angle ⁇ is most preferably 20°.
  • the bead valve 30 When the container is dumped, the bead valve 30 easily falls into the bead valve accommodating groove 20 along the lower end surface 21, avoiding the first liquid outlet channel 11 and the liquid outlet 40, so that the liquid flows out of the liquid outlet 40 smoothly;
  • the design of the lower end surface 21 is conducive to the backflow of the liquid, and it is beneficial for the bead valve 30 to fall back to the valve seat 41 at an appropriate speed.
  • the valve 30 will fall back to the valve seat 41 too quickly, blocking the liquid outlet 40, so that most of the liquid cannot flow back to the inner cavity of the container; if the included angle ⁇ is too small, the bead valve 300 will not easily fall back to the valve when the container is upright.
  • the angle ⁇ formed by the lower end surface 21 and the horizontal plane is 20°, so that the ball valve 30 can fall back to the valve seat 41 along the lower end surface 21 when the container is upright, and the liquid outlet 40 is blocked, and at the same time, the ball valve 30 can be ensured on the lower end surface.
  • the falling speed on 21 is not too fast, and after most of the liquid flows back to the inner cavity of the container through the liquid outlet 40 , it can fall back to the valve seat 41 and block the liquid outlet 40 .
  • the cross-section of the communication cavity formed by the first liquid outlet channel 11 and the bead valve accommodating groove 20 is in the shape of a racetrack. Oval shape, but racetrack shape is the most preferred solution.
  • the first liquid outlet channel 11 and the bead valve accommodating groove 20 are two cylindrical cavities arranged side by side, and two planes are tangent to the two cylindrical cavities. As a result, a racetrack-shaped/capsule-shaped communication cavity is formed in cross-section, so that the bead valve 30 is not hindered from any change of position in this communication space.
  • the container covered by the bottle cap is a squeezable container, and the liquid in the inner cavity of the container will flow out only when it is squeezed by external force.
  • the liquid will fill the first liquid outlet channel 11 and the second liquid outlet channel 12, air cannot enter the container, so the pressure is balanced and the liquid cannot continue to flow.
  • the bottle cap is provided with a liquid outlet nozzle 50 , which is arranged at the end of the second liquid outlet channel 12 .
  • the cross section of the bottle body of the container is non-circular or elliptical, and the cross section has a central axis l 1 , and the central axis l 1 is arranged at an angle with the horizontal plane.
  • the axis is also the direction of the liquid outlet nozzle 50 and the axis direction of the second liquid outlet channel 7; the central axis l1 is higher on one side of the liquid outlet nozzle 50 than the other side, so that the ball valve 30 can move along the first liquid outlet channel 11. Move and do not fall into the bead valve accommodating groove 20, and at the same time make the liquid outlet 50 in a raised state.
  • the ball valve 30 When the bottle cap and the container are laid flat, the ball valve 30 will move away from the valve seat 41 and move along the first liquid outlet channel 11. Since the bead valve accommodating groove 20 and the second liquid outlet channel 12 are located on the same side, the liquid outlet nozzle 50 is in a raised state, that is, the container is not tilted toward the liquid outlet direction, so the bead valve 30 will not fall into the bead valve accommodating groove 20 when moving along the first liquid outlet channel 11 . If there is a lot of liquid in the inner cavity 1 of the container, when the bead valve 30 leaves the valve seat 41 and moves in the first liquid outlet channel 11, the liquid will fill the first liquid outlet channel 11 and the bead valve accommodating groove in a very short time. 20. At this time, the pressure inside the container reaches an equilibrium state, and the liquid will not automatically flow into the second liquid outlet channel 12 under the condition of no temperature difference (ie, temperature rise or internal pressure increase/external force squeezes the container).
  • the internal pressure of the container will increase. At this time, the liquid will flow through the first liquid outlet channel 11 to the second liquid outlet channel 12 until the liquid level of the outflow liquid.
  • the position of the liquid outlet nozzle 50 is the same as that of the liquid outlet nozzle 50, but because the liquid outlet nozzle 50 is in a raised state, the height of the liquid outlet nozzle 50 is increased, so that the liquid can flow out of the container under higher internal pressure. the liquid will not automatically flow out of the container. Therefore, when the bottle cap and the container are in an accidental lying state, the raised design of the liquid outlet 50 can reduce the risk of liquid outflow and also reduce the total amount of liquid outflow.
  • the entire longitudinal section of the bottle cap and the container has a longitudinal axis l 2 , and the longitudinal axis l 2 and The horizontal plane is arranged at an included angle, and the longitudinal axis is also the axis direction of the first liquid outlet channel 11 .
  • the bottle body is provided with a protrusion 60, so that the longitudinal axis l2 is lower on one side of the first liquid outlet channel 11 than the other side, so that the ball valve 30 is flat on the container. When lying down, it leaves the valve seat 41 and moves along the first liquid outlet channel 11 .
  • the bead valve 30 is limited to the inlet of the first liquid outlet channel 11 .
  • the liquid will fill the first liquid outlet channel 11 and the bead valve accommodating groove 20 in a very short time, which means that the pressure inside the bottle cap and the container is balanced, and there is no temperature difference or pressure difference. In the case of , the liquid will not automatically flow into the second liquid outlet channel 12 .
  • the liquid outlet nozzle 50 is provided with a cap plug 51
  • the cap plug 51 is provided with a cap in the extending direction of the second liquid outlet channel 12 .
  • the plug 51 is integrally formed with a sealing plunger 52.
  • the sealing plunger 52 makes the cover plug 51 interfere with the inner wall of the second liquid outlet channel 12, so that the container forms a sealed whole, ensuring the sealing and safety of the product during storage, transportation and sales.
  • the sealing plunger 52 is provided with a frangible line 53.
  • the cap is opened by rotating the cap stopper 51.
  • the frangible line 53 in the sealing plunger 52 will be broken. Broken, the easy-to-break wire 53 cannot be recovered after being broken, and has the function of preventing theft.
  • the frangible line 53 is broken, a part of the sealing plunger 52 will remain in the second liquid outlet channel 12, and the remaining sealing plunger 52 will reduce the overall size of the second liquid outlet channel 12, which is more convenient in some cases use.

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  • Mechanical Engineering (AREA)
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Abstract

自关闭容器瓶盖，用于盖设在容器上，包括壳体、珠阀（300）、液体流出通道（100）以及珠阀活动腔（200），液体流出通道（100）的一端与珠阀活动腔（200）连通，液体流出通道（100）的另一端与容器的外部连通，珠阀（300）置于珠阀活动腔（200）中，珠阀活动腔（200）在背向液体流出通道（100）的一面设有出液口（400），出液口（400）与容器的内腔连通；出液口（400）处设有阀座（410），阀座（410）与珠阀（300）配合可封堵出液口（400）；在瓶盖向液体流出通道（100）的出液方向倾倒时，珠阀活动腔（200）用于使珠阀（300）避让出液口（400）和液体流出通道（100），在瓶盖正置时，珠阀活动腔（200）用于使珠阀（300）回落至阀座（410）并封堵出液口（400）。

Description

自关闭容器瓶盖 技术领域
本发明涉及容器出液领域，更具体地，涉及自关闭容器瓶盖。
背景技术
现有对液体包装瓶盖的密封处理大多利用螺旋瓶盖、翻盖或者塞盖，在使用时需打开瓶盖，使用后需再盖回瓶盖，使用比较繁琐。
现有的液体密封手段中还有通过十字开口硅胶塞盖，其具有自关闭功能，但该技术结构复杂，成本高，且容易因挤压力度过大而出现集中出液产生喷射或溅射的情况，且不好随机控制用量，因此不适合大多数产品。现有的液体密封手段中还有一种珠阀式铝罐瓶盖结构，具有自关闭的功能，但该瓶盖内有一部分液体不能回流，不回流的液体会变质或干枯，因此不适合长期重复使用的产品包装。
发明内容
本发明旨在克服上述现有技术的至少一种缺陷，提供自关闭容器瓶盖，用于解决现有瓶盖应用于容器时所出现的液体无法回流而导致变质或干枯的问题。
本发明采用的技术方案包括：
一种自关闭容器瓶盖，用于盖设在容器上，包括壳体、珠阀、液体流出通道以及珠阀活动腔，所述液体流出通道的一端与所述珠阀活动腔连通，所述液体流出通道的另一端与所述瓶盖的外部连通，所述珠阀置于所述珠阀活动腔中，所述珠阀活动腔在背向所述液体流出通道的一面设有出液口，所述出液口与所述容器的内腔连通；所述出液口处设有阀座，所述阀座与所述珠阀配合可封堵所述出液口；在所述瓶盖向所述液体流出通道的出液方向倾倒时，所述珠阀活动腔用于使所述珠阀避让所述出液口和所述液体流出通道，在所述瓶盖正置时，所述珠阀活动腔用于使所述珠阀回落至所述阀座并封堵所述出液口。
本发明提供的自关闭容器瓶盖利用珠阀、珠阀活动腔、阀座和出液口实现了容器瓶盖的自关闭，珠阀活动腔的作用在于在瓶盖正置时使珠阀落入阀座的位置，珠阀配合阀座能够封 堵出液口；在瓶盖向液体出液通道的出液方向倾倒时使珠阀离开阀座，避让出液口和液体出液通道，以使容器内腔的液体能够流出瓶盖的外部。液体出液通道的出液方向是指当液体要经由液体出液通道流出容器的外部时液体的流动方向。
当瓶盖盖设于容器上且容器向出液方向倾倒时，珠阀会离开阀座并移动至珠阀活动腔的其他位置，避让出液口以及液体流出通道，如容器内腔内装有液体，则容器内腔的液体会从出液口流出，经过珠阀活动腔后沿液体流出通道流出至容器的外部；当容器正置时，液体会在重力作用下沿液体流出通道回流，经过珠阀活动腔后从出液口流向容器的内腔，珠阀也会在容器正置时重新回落至阀座，与阀座配合封堵出液口，阻断容器内空间与外界的空气流通，使容器内部的液体不与外界接触，则不会出现容器内腔的液体变质或干枯的问题。
通过珠阀、珠阀活动腔、阀座和出液口之间的配合，利用简易的结构就可实现出液口的自关闭，使液体能够顺利流出瓶盖外或回流至容器内腔，且回流至容器内腔后的液体不会与外界空气接触，避免了液体长期与空气接触而导致的干枯和变质的问题。
进一步，所述液体流出通道包括第一出液通道和第二出液通道；所述第一出液通道的一端与所述珠阀活动腔连通，另一端与所述第二出液通道连通；所述第二出液通道的一端与所述第一出液通道的一端连通，另一端与所述容器的外部连通；所述第二出液通道的出液方向偏向所述瓶盖的第一侧面；所述第一出液通道与所述珠阀活动腔的连通处的位置，以及所述出液口设于所述珠阀活动腔的位置均远离所述第一侧面；在所述瓶盖向所述第二出液通道的出液方向倾倒时，所述珠阀离开所述阀座并移动至所述珠阀活动腔中靠近所述第一侧面的位置，避让所述出液口和所述第一出液通道。
液体流出通道分为两段，一段直接与珠阀活动腔相连通，为第一出液通道；另一段为第二出液通道，其一端与第一出液通道相连通，另一端与容器的外部连通，第二出液通道的出液方向为液体最终流出容器的方向，该方向偏向瓶盖的第一侧面，即出液方向也偏向第一侧面。第一出液通道与珠阀活动腔的连通处的位置，以及出液口在珠阀活动腔上的位置均远离第一侧面，这样设置的目的是为了在容器向出液方向即第一侧面的方向倾倒时，珠阀能够移动至珠阀活动腔中靠近第一侧面的位置，且由于出液口和第一出液通道入口的位置设置在远离第一侧面的位置，则珠阀能够避让出液口和第一出液通道，容器内腔液体能够顺利沿出液口、珠阀活动腔、第一出液通道和第二出液通道流出容器外部。
进一步，所述珠阀活动腔的截面长度为所述珠阀的直径的2倍～4倍。
珠阀活动腔的截面长度是指截面上最长的长度，该长度决定了在容器向出液方向倾倒时 珠阀在瓶盖中可移动的范围，当活动腔的截面长度达到珠阀的直径的2倍～4倍时，珠阀能够在避让出液口和第一出液通道的同时有较大的移动范围，不容易回落至阀座。但珠阀不能够有太大的移动范围，原因是容器内腔的液体在流出时会经过并充满珠阀活动腔，如珠阀活动腔的截面长度过长(即珠阀活动腔的体积越大)，则珠阀活动腔会在容器倾倒时充满较多液体，容器在正置时活动腔的液体回流速度会较慢，无法在珠阀回落至阀座前回流至容器内腔，从而导致较多液体残留在珠阀活动腔中，液体与空气长期接触会变质或干枯。因此珠阀活动腔的截面长度为珠阀的直径的2倍～4倍，可保证珠阀在容器倾倒时有适当的移动范围，能够避让出液口和第一出液通道，同时，珠阀活动腔内不会充满过多液体。
进一步，所述珠阀活动腔通过斜面连接所述阀座；在所述容器正置时，所述珠阀沿所述斜面回落至所述阀座并封堵所述出液口。
珠阀活动腔通过斜面连接阀座，斜面能够使珠阀在容器倾倒时更容易离开阀座，避让出液口和第一出液通道，同时在容器正置时在其重力作用下回落至阀座，即保证出液口在容器正置时能够被封堵，则容器内腔的液体就与外界空气隔绝，避免液体干枯或变质的问题。
进一步，所述珠阀活动腔的截面为圆形；所述珠阀活动腔的圆心在所述第二出液通道的出液方向上；所述第一出液通道与所述珠阀活动腔的连通处，以及所述出液口以及均设于所述珠阀活动腔远离所述第一侧面的半圆范围内，且均与所述珠阀活动腔的侧壁保持有距离。
珠阀活动腔的截面为圆形，则珠阀在活动腔中移动时不容易出现被卡住在某一位置的情况。其次，由于出液口和第一出液通道与活动腔的连通处设在远离第一侧面的半圆范围内，且珠阀活动腔的直径(截面长度)为珠阀的2倍～4倍，则在容器倾倒时珠阀能够移动至珠阀活动腔的其他位置，避让出液口和第一出液通道。
再者，由于出液口和第一出液通道与活动腔的连通处会与活动腔的侧壁保持有一定距离，在容器倾倒时珠阀更容易移动至珠阀活动腔的其他位置，避让出液口和第一出液通道，则使用者无需严格按照第二出液通道的出液方向倾倒容器，只需大致按照第二出液通道的出液方向倾倒容器，也能使珠阀避让出液口以及第一出液通道，且珠阀不容易落入第一出液通道引起堵塞，容器内腔的液体能够顺利流出瓶盖外。
进一步，所述珠阀活动腔的截面为椭圆形；所述珠阀活动腔的长轴在所述第二出液通道的出液方向上；所述第一出液通道与所述珠阀活动腔的连通处，以及所述出液口均设于所述珠阀活动腔远离所述第一侧面的半椭圆范围内，且均与所述珠阀活动腔的侧壁保持有距离。
截面为椭圆形的珠阀活动腔为更加优选的方案，该珠阀活动腔的长轴在第二出液通道的 出液方向上，则该活动腔只需要在长轴方向上预留珠阀的移动范围，而短轴方向上可以尽量保持较短的长度，以使整个珠阀活动腔的体积能够保持较小，不容易造成液体的残留。
同时，由于出液口和第一出液通道与活动腔的连通处设在远离第一侧面的半椭圆范围内，珠阀活动腔的长轴长度(截面长度)为珠阀的2倍～4倍，则在容器倾倒时，珠阀能够移动至珠阀活动腔的其他位置，避让出液口和第一出液通道。再者，由于出液口和第一出液通道与活动腔的连通处会与活动腔的侧壁保持有一定距离，在容器倾倒时珠阀更容易移动至珠阀活动腔的其他位置，避让出液口和第一出液通道，则使用者在倾倒容器时无需严格按照第二出液通道的出液方向，只需大致按照第二出液通道的出液方向倾倒，也能使珠阀避让出液口以及第一出液通道，珠阀不容易落入第一出液通道引起堵塞，容器内腔的液体能够顺利流出瓶盖外。
进一步，所述斜面与水平面所成夹角的范围在10°～30°之间。
珠阀活动腔连接出液口的斜面与水平面成一定夹角，使珠阀能够沿该斜面离开阀座或回落至阀座，但该夹角不应过大或过小，如夹角过大，则在容器被倾倒后再正置时，珠阀会过快回落至阀座封堵了出液口，导致大部分液体无法回流至容器内腔；如夹角过小，则珠阀在容器正置时不容易回落至阀座，导致出液口不会被封堵，瓶盖的密封功能失效，因此斜面与水平面所成夹角的范围在10°～30°之间可使珠阀在容器正置时沿该斜面回落至阀座封堵出液口，同时也保证珠阀在该斜面上的回落速度不会过快，能够在大部分液体经由出液口回流至容器内腔后再回落至阀座。
一种自关闭容器瓶盖，用于盖设于容器，包括壳体、珠阀、液体流出通道、与所述容器的内腔连通的出液口、设于所述出液口的阀座，以及珠阀容置槽，所述珠阀与所述阀座配合可封堵所述出液口，所述珠阀容置槽设于所述液体流出通道的一侧面，与所述液体流出通道和所述出液口连通，其开口的尺寸大于所述珠阀的尺寸；在所述瓶盖向所述液体流出通道的出液方向倾倒时，所述珠阀容置槽用于使所述珠阀避让所述出液口和所述液体流出通道，在所述瓶盖正置时，所述珠阀容置槽用于使所述珠阀回落至所述阀座并封堵所述出液口。
自关闭容器瓶盖利用珠阀、出液口、阀座以及珠阀容置槽实现了出液口的自开闭，当瓶盖盖设在容器上且容器向液体流出通道的出液方向倾倒时，珠阀容置槽使珠阀避让出液口和液体流出通道，如容器内腔装有液体，则容器内腔的液体能够沿出液口和液体流出通道流至容器外部，当容器正置时，液体会沿液体出液通道和出液口回流至容器内腔，珠阀容置槽使珠阀回落至阀座并封堵出液口。
通过珠阀、珠阀容置槽以及液体流出通道之间的配合，利用简易的结构就可实现出液口的自关闭，使液体能够顺利流出瓶盖外或回流至容器内，不会发生液体无法回流而导致的干枯和变质的问题。
进一步，所述液体流出通道设有限位件，用于限制所述珠阀进入所述液体流出通道。液体流出通道设有限位件，使珠阀不能够进入液体流出通道，即使珠阀在容器倾倒时移动至液体流出通道的入口，也会由于限位件无法进入，从而回落至珠阀容置槽的位置，避让出液口以及液体流出通道。
进一步，所述液体流出通道包括第一出液通道和第二出液通道；所述第一出液通道与所述珠阀容置槽连通以及所述第二出液通道连通；所述第二出液通道的一端与所述第一出液通道的一端连通，另一端与所述容器的外部连通；所述第二出液通道的出液方向偏向所述容器的第一侧面，所述珠阀容置槽设于所述第一出液通道靠近所述第一侧面的一侧；在所述瓶盖向所述第二出液通道的出液方向倾倒时，所述珠阀离开所述阀座并移动至所述珠阀容置槽，避让所述出液口和所述第一出液通道；所述限位件为若干条肋条，竖直设置于所述第一出液通道的内壁。
液体流出通道分为两段，一段为第一出液通道，珠阀容置槽设于第一出液通道的一侧；另一段为第二出液通道，其一端与第一出液通道相连通，另一端与容器的外部连通，则第二出液通道的出液方向为液体最终流出容器的方向，该方向偏向容器的第一侧面，即出液方向也偏向第一侧面。珠阀容置槽设于第一出液通道靠近第一侧面的一侧，这样设置的目的是：当瓶盖盖设在容器上且容器向出液方向即第一侧面的方向倾倒时，珠阀能够移动至珠阀容置槽中，避让出液口和第一出液通道，则容器内腔的液体能够沿出液口、第一出液通道和第二出液通道流出瓶盖外。
限位件为若干条竖直设置在第一出液通道内壁的肋条，既不会影响液体在第一出液通道内的流动，且有效限制珠阀进入第一出液通道。
进一步，所述珠阀容置槽由从下往上依次连接的下端面、侧壁和上端面构成，所述下端面较所述上端面靠近所述出液口，所述下端面与水平面所成夹角的范围在10°～30°之间。
珠阀容置槽连接出液口的斜面与水平面成一定夹角，使珠阀能够沿该斜面离开阀座或回落至阀座，但该夹角不应过大或过小，如夹角过大，则在容器被倾倒后再正置时，珠阀会过快回落至阀座封堵了出液口，导致大部分液体无法回流至容器内腔；如夹角过小，则珠阀在容器正置时不容易回落至阀座，导致出液口不会被封堵，瓶盖的密封功能失效，因此斜面与 水平面所成夹角的范围在10°～30°之间可使珠阀在容器正置时沿该斜面回落至阀座封堵出液口，同时也保证珠阀在该斜面上的回落速度不会过快，能够在大部分液体经由出液口回流至容器内腔后再回落至阀座。
进一步，瓶盖所盖设的容器为可挤压的容器，在受到外力的挤压下容器内的液体才会流出，由于第二出液通道有足够的长度，因此当瓶盖和容器被倒置时，液体会充盈第一出液通道和第二出液通道，空气无法进入瓶盖和容器内，因此达到压力平衡，液体无法继续流动。
基于对第一和第二出液通道的进一步设计，当所述瓶盖被平躺放置时，所述瓶盖的横截面有一中轴线，所述中轴线与水平面呈夹角设置，使所述珠阀沿所述第一出液通道移动且不落入所述珠阀容置槽，同时使第二出液通道与壳体外部连通的开口位置处于仰起状态。
瓶盖的横截面的中轴线也指第二出液通道的轴线，该轴线与水平面之间呈一定的夹角设置，即当瓶盖被平躺放置时，第二出液通道与壳体外部连通的开口位置的一侧高于轴线的另一侧，使第二出液通道的开口位置处于仰起状态。
珠阀会在瓶盖被平躺放置时会离开阀座，由于第二出液通道的开口位置仰起，即瓶盖没有向出液方向倾侧，因此珠阀会在第一出液通道内移动但无法落入位置对应第二出液通道的珠阀容置槽；
如容器内液体较多，则在珠阀离开阀座并在第一出液通道中移动时，液体会在极短时间内充满第一出液通道和珠阀容置槽，此时容器和瓶盖内部的压力达到平衡状态，在没有温差(即温度升高或内压增加/外力挤压容器)的情况下，液体不会自动流入第二出液通道。
瓶盖和容器处于平躺状态时，如温度升高，则内部压力增大，液体会流经第一出液通道到达第二出液通道，直至流出液体的液面与第二出液通道的开口位置持平，但由于第二出液通道的开口位置仰起，提高了第二出液通道外部开口的高度，则液体在更高的内部压力下才能流出壳体外部，在一般的温差条件下，液体不会自动流出壳体外。因此，瓶盖及容器处于意外平躺状态时，第二出液通道的仰起设计能够降低液体流出的风险，也能够降低液体流出的总量。
基于上述方案，进一步，所述第一出液通道与所述珠阀容置槽共同形成的连通腔体的横截面呈跑道形。
设于第一出液通道一侧面的珠阀容置槽与第一出液通道为并列设置的两段圆柱形腔体，并用两个平面与该两段圆柱形腔体相切，由此形成了横截面为“跑道形”的连通内腔，珠阀在这一连通空间中可变换位置不受阻碍。
与现有技术相比，本发明的有益效果为：
(1)本发明提供的一种容器瓶盖通过珠阀、珠阀活动腔、液体流出通道、阀座和出液口之间的配合，利用简易的结构就可实现出液口的自关闭，使液体能够顺利流出容器外或回流至容器内，回流至容器内腔后不会与外界空气接触，从而避免了液体与空气长期接触而导致的干枯和变质的问题。
(2)珠阀活动腔的截面为圆形或椭圆形时，由于第一出液通道与活动腔的连通处与出液口与活动腔的侧壁保持有距离，珠阀更容易在容器倾倒时移动至珠阀活动腔的其他位置，避让出液口和第一出液通道，使用者在倾倒盖设有本发明的瓶盖的容器时，无需十分严格地按照出液方向倾倒容器，只要将容器大致向出液方向倾倒，珠阀也能够在珠阀活动腔中避让出液口以及第一出液通道，方便使用者使用。
(3)本发明提供的另一种容器瓶盖同样通过珠阀、珠阀容置槽、液体流出通道、阀座和出液口之间的配合实现出液口的自关闭，由于珠阀容置槽设置在液体流出通道的一侧，因此在液体流出通道中设有限位件，用于限制珠阀进入液体流出通道，使珠阀回落至珠阀容置槽的位置，避让出液口以及液体流出通道，以使液体能够顺利通过液体流出通道流出容器外部。
附图说明
图1为实施例1的瓶盖的剖面示意图。
图2为实施例1的瓶盖的立体示意图。
图3为实施例1的其中一种可选方案的瓶盖的剖面示意图。
图4为实施例1的其中一种可选方案的瓶盖的剖面示意图。
图5为实施例1的瓶盖在向出液方向倾斜时的剖面示意图。
图6为实施例1的瓶盖的仰视示意图。
图7为实施例1的瓶盖的另一仰视示意图。
图8为实施例2的瓶盖的剖面示意图。
图9为实施例2的瓶盖的俯视示意图。
图10为实施例2的瓶盖的第一出液通道与珠阀容置槽的结构示意图。
图11为实施例2的瓶盖所盖设的容器在被平躺放置时的横截面结构示意图。
图12为实施例2的瓶盖所盖设的容器在被平躺放置时的纵剖面结构示意图。
图13为实施例2的出液嘴处的具体设计的结构示意图。
标号说明：
实施例1：液体出液通道100；第一出液通道110；第二出液通道120；珠阀活动腔200；珠阀300；出液口400；阀座410；第一侧面A；
实施例2：液体出液通道10；第一出液通道11；肋条11a；第二出液通道12；珠阀容置槽20；下端面21；侧壁22；上端面23；珠阀30；出液口40；阀座41；出液嘴50；盖塞51；密封柱塞52；易断线53；凸起60；第一侧面A。
具体实施方式
本发明附图仅用于示例性说明，不能理解为对本发明的限制。为了更好说明以下实施例，附图某些部件会有省略、放大或缩小，并不代表实际产品的尺寸；对于本领域技术人员来说，附图中某些公知结构及其说明可能省略是可以理解的。
实施例1
本实施例提供一种自关闭容器瓶盖，用于盖设在容器上。容器包括容器内腔，容器内腔可装有与容器的材料不相冲突的液体，具体地，该容器以及该容器瓶盖尤其适用于有一定粘度的液体，如液体洗涤剂、个人护理品或液体调味剂等。具体地，瓶盖与容器过盈干涉，形成密封的整体。
如图1、2所示，容器瓶盖包括壳体、液体流出通道100、珠阀活动腔200，置于珠阀活动腔200中的珠阀300，液体流出通道100的一端与珠阀活动腔200连通，液体流出通道100的另一端与瓶盖的外部连通。
珠阀活动腔200在背向液体流出通道100的一面设有出液口400，出液口400与容器内腔连通，为容器内腔的液体流出的唯一出口。
出液口400处设有阀座410，珠阀300在瓶盖正置时被支撑于阀座410，阀座410为圆锥形面，其孔径小于珠阀300的直径，阀座410的表面与珠阀300的表面贴合，从而封堵出液口400，使容器内腔的液体与外界空气的隔绝，避免液体出现变质或干枯的问题。
珠阀300的密度大于容器内腔的液体的密度，珠阀300为圆球体，可为金属或玻璃，且如容器内腔内装的液体粘度越高，选用作为珠阀300的球体密度应更大。
如图1、2所示，具体地，液体流出通道100包括第一出液通道110和第二出液通道120，第一出液通道110的一端与珠阀活动腔200相连通，另一端与第二出液通道120的一端相连通，第二出液通道120的另一端与容器的外部相连通。从图1、2可见，液体出液通道100的 出液方向取决于第二出液通道120的出液方向，出液方向是指当液体要经由第一出液通道110和第二出液通道120流出容器的外部时液体的流动方向，即如图1、5所示在第一出液通道110和第二出液通道120中虚线的所指方向。第二出液通道120的出液方向偏向瓶盖的一侧，所偏向的一侧可记为瓶盖的第一侧面A。
具体地，如图1、2所示，作为示意，第一出液通道110与珠阀活动腔200的连通处设置在瓶盖的中心位置，而出液口400设置在瓶盖的第一侧面A正对的一侧，即两者均远离第二出液通道120的出液方向(即第一侧面A)的一侧。在具体实施过程中，第一出液通道110与珠阀活动腔200的连通处(或整个第一出液通道100)，以及出液口400在珠阀活动腔200中的位置都应满足远离第一侧面A这一条件，即两者都不应设置在瓶盖的第一侧面A。
优选地，整个第一出液通道110以及出液口400在珠阀活动腔200中的最佳位置应设置在瓶盖的中心位置或正对第一侧面A的一侧。如图3所示，第一出液通道110与出液口400均设置在瓶盖的中心位置，如图4所示，第一出液通道100与出液口均设置在瓶盖的第一侧面A正对的一侧。
当瓶盖盖设在容器上且容器向第二出液通道120的出液方向倾倒时，珠阀活动腔200用于使珠阀300避让出液口400和第一出液通道110。具体地，如图5所示，当容器向第二出液通道120的出液方向即第一侧面A的方向倾倒时，珠阀300离开阀座410，移动至珠阀活动腔200的其他位置，避让出液口400和液体流出通道100，则容器内腔的液体可沿出液口400流出，经过珠阀活动腔200后沿第一出液通道110和第二出液通道120流出容器的外部，液体的流动方向如图5中虚线所指的方向所示。
如图1、2所示，在容器正置时，珠阀活动腔200用于使珠阀300回落至阀座410并封堵出液口400。优选地，如图1、3、4所示，珠阀活动腔200通过斜面连接出液口400，则在容器倾倒时，珠阀300容易离开阀座410，避让出液口400和第一出液通道110，在容器正置时，珠阀300能够沿该斜面回落至阀座410，与阀座410配合封堵出液口400。
具体地，如图1、3所示，珠阀活动腔200连接出液口400的斜面与水平面所成夹角α不应过大或过小，如夹角α过大，则珠阀300会在容器正置时过快回落至阀座410封堵了出液口400，导致大部分液体无法回流至容器内腔；如夹角α过小，则珠阀300在容器正置时不容易回落至阀座410，导致出液口400不会被封堵，瓶盖的密封功能失效。
因此，在本实施例中，斜面与水平面所成夹角的范围优选在10°～30°之间，其中，最优选的角度为20°。如夹角α的角度为20°，可使珠阀300沿该斜面回落至阀座410封堵出液 口400，同时也保证珠阀300在该斜面上的回落速度不会过快，能够在大部分液体经由出液口400回流至容器内腔后再回落至阀座410并封堵出液口400。
优选地，如图6所示，珠阀活动腔200的截面长度D为珠阀300的直径d的2倍～4倍，优选地，截面长度D为直径d的3倍。
在容器向第二出液通道120的出液方向倾倒时，珠阀活动腔200的截面长度D决定了珠阀300可移动的范围，当珠阀活动腔200的截面长度D达到珠阀300的直径d的2倍～4倍时，结合图1、5、6可知，珠阀300能够在避让出液口400和第一出液通道110的同时在珠阀活动腔200中有较大的移动范围，不容易回落至阀座410。但珠阀300在珠阀活动腔200中的移动范围不能过大，原因是容器内腔的液体在经由出液口400、第一出液通道110和第二出液通道120流出瓶盖的过程中也会充满珠阀活动腔200，如珠阀活动腔200的截面长度D过长(即珠阀活动腔200的体积过大)，则珠阀活动腔200内会充满较多液体，在容器正置时，珠阀活动腔200中较多的液体回流速度会较慢，无法在珠阀300回落至阀座410前回流至容器内腔，最终导致较多液体残留在珠阀活动腔200中，由于这些残留的液体会继续与空气接触，因此会出现变质或干枯的问题，干枯的液体可能会使珠阀300被固定在阀座410处，即使容器处于倾倒也无法离开阀座410，导致瓶盖无法正常工作；而变质的液体则会在下一次倾倒容器时污染了从容器内腔流出的液体。
因此，珠阀活动腔200的截面长度D为珠阀300的直径d的2倍～4倍，可保证珠阀300在容器倾倒时有适当的移动范围，既能够避让第一出液通道110和出液口400，也不会造成珠阀活动腔200内流入过多液体。
优选地，珠阀活动腔200的截面可以为圆形或椭圆形，珠阀300在截面为圆形或椭圆形的珠阀活动腔200中移动不会出现被卡住在某一位置的情况，保证珠阀300能够在容器倾倒时及时移动至珠阀活动腔200的其他位置，避让出液口400和第一出液通道110，同时在容器正置时能够顺利回落至阀座410以封堵出液口400。
具体地，当珠阀活动腔200的截面为圆形时，珠阀活动腔200的圆心在第二出液通道120的出液方向上，第一出液通道110与珠阀活动腔200的连通处，以及出液口400均设于珠阀活动腔200远离第一侧面A的半圆范围内，且珠阀活动腔200的截面长度即直径为珠阀300的直径的2倍～4倍，则在容器向第二出液通道120的出液方向倾倒时，珠阀300能够移动至珠阀活动腔200的其他位置，避让出液口400和第一出液通道110。同时，出液口400和第一出液通道110与珠阀活动腔200的连通处均与珠阀活动腔200的侧壁保持有距 离，这样设置的好处是：珠阀在容器向第二出液通道120的出液方向即第一侧面A的方向倾倒时更容易落入珠阀活动腔200的其他位置，避让出液口400以及第一出液通道110，则使用者无需严格按照第二出液通道120的出液方向倾倒容器，只需大致按照第二出液通道120的出液方向倾倒容器，也能使珠阀300避让出液口400以及第一出液通道110，珠阀300不容易落入第一出液通道110引起堵塞，容器内腔的液体能够顺利流出瓶盖外。
更优选地，如图6所示，珠阀活动腔200的截面最好为椭圆形，珠阀活动腔200的长轴在第二出液通道120的出液方向上。第一出液通道110与珠阀活动腔200的连通处，以及出液口400均设于珠阀活动腔200远离第一侧面A的半圆范围内，且珠阀活动腔200的截面长度即长轴长度为珠阀300的直径的2倍～4倍，则在容器向第二出液通道120的出液方向倾倒时，珠阀300能够移动至珠阀活动腔200的其他位置，避让出液口400和第一出液通道110。
更优选地，出液口400以及第一出液通道110与珠阀活动腔200的连通处设置在珠阀活动腔200的长轴方向上。作为示例，如图7所示，出液口400设置在长轴上远离第一侧面A的一端，或设置在整个珠阀活动腔200的中心(如图7所示的出液口400’)，在图7中未示出第一出液通道110的位置，其与珠阀活动腔200的连通处的位置设置可参考出液口400和出液口400’的位置设置。
从图7可看出，出液口400或出液口400’均与珠阀活动腔200的侧壁保持有距离，即表示第一出液通道110与珠阀活动腔200的连通处的位置也会与珠阀活动腔200的侧壁保持有距离，这样设置的好处是：当容器向第二出液通道120的出液方向倾倒时，珠阀300更容易进入珠阀活动腔200的其他位置，避让出液口400和第一出液通道110，同时珠阀399也不容易在容器倾倒时进入第一出液通道110引起堵塞，容器内腔的液体能够顺利流出瓶盖外。
截面为椭圆形的珠阀活动腔200通过在其长轴方向上设置出液口400以及与第一出液通道110的连通处，并在长轴方向上预留珠阀300的移动范围，从而实现珠阀300在容器倾倒时避让出液口400以及第一出液通道110。因此，珠阀活动腔200在其短轴方向上可以尽量保持较短的长度，只需要保证出液口400以及第一出液通道110的连通处与珠阀活动腔200的侧壁保持有距离即可。由此可见，与截面为圆形的珠阀活动腔200相比，截面为椭圆形的珠阀活动腔200能够保持较小的体积，避免了液体容易残留在珠阀活动腔200的问题。
实施例2
本实施例提供一种自关闭容器瓶盖，用于盖设在容器上。容器包括容器内腔，容器内腔 可装有与容器的材料不相冲突的液体，具体地，该容器以及该容器瓶盖尤其适用于有一定粘度的液体，如液体洗涤剂、个人护理品或液体调味剂等。具体地，瓶盖与容器过盈干涉，形成密封的整体。
如图8所示，容器瓶盖包括壳体、液体流出通道10、珠阀容置槽20、珠阀30、与容器内腔连通的出液口40，以及设于出液口40的阀座41。
珠阀30在瓶盖正置时被支撑于阀座41，阀座41为圆锥形面，其孔径小于珠阀30的直径，阀座41的表面与珠阀30的表面贴合，从而封堵了出液口40，阻断了容器内腔内的液体与外界空气的接触。珠阀30的密度应大于容器内腔中的液体的密度，可为金属或玻璃，且如容器内腔内装的液体粘度越高，选用作为珠阀30的球体密度应更大。
珠阀容置槽20设于液体流出通道10的一侧面，与液体流出通道10和出液口40连通，其开口的尺寸大于珠阀30的尺寸，具体来说，珠阀容置槽20的截面宽度略大于珠阀30的直径。
具体地，液体流出通道10包括第一出液通道11和第二出液通道12。如图8所示，第一出液通道11直接与珠阀容置槽20以及出液口40连通，第二出液通道12的一端与第一出液通道11连通，另一端与容器的外部连通。如图9所示，珠阀容置槽20设于第一出液通道11的一侧面，该侧面靠近第二出液通道12的出液方向偏向的一侧，第二出液通道12的出液方向是指当液体要经由第二出液通道12流出瓶盖的外部时液体的流动方向，即如图8所示在第一出液通道11和第二出液通道12中虚线的所指方向。从图8可看出，第二出液通道12的出液方向偏向瓶盖的一侧，所偏向瓶盖的一侧可记为第一侧面A，则珠阀容置槽20设于第一出液通道11靠近第一侧面A的一侧。
当瓶盖盖设在容器上且容器向第二出液通道12的出液方向倾倒时，珠阀容置槽20用于使珠阀30避让出液口40和液体流出通道10，具体地，珠阀30在容器倾斜时离开阀座41，沿第一出液通道11的方向移动：第一出液通道11的孔径略大于珠阀30的直径，能使珠阀30在离开阀座41后且在落入珠阀容置槽20前，能够沿第一出液通道11移动一小段距离；由于珠阀容置槽20设在第一出液通道11的一侧，且为靠近第一侧面A的一侧，因此当容器向第二出液通道12的出液方向即第一侧面A的方向倾倒时，珠阀30在离开阀座41后会落入珠阀容置槽20中，则容器内腔的液体从出液口40流出，珠阀30已避让至珠阀容置槽20中，因此液体会流向第一出液通道11，并从第二出液通道12流出瓶盖外。
当容器正置时，液体从第二出液通道12经由第一出液通道11回流至出液口40回到容器 内腔内，珠阀30在重力作用下离开珠阀容置槽20并回落至阀座41上，封堵出液口40，阻断容器内腔与外界的空气流通，从而保持容器内腔的液体不变质。
优选地，第一出液通道11设有限位件，用于限制珠阀30进入第一出液通道11，即使珠阀30在容器倾倒时移动至第一出液通道11，也会由于限位件无法进入第一出液通道11，珠阀30回落至珠阀容置槽20内避让第一出液通道11和出液口40。
如图9所示，限位件为若干条肋条11a，竖直设置于第一出液通道11的内壁，肋条11a呈长条形，设有若干条肋条11a的第一出液通道110的孔径自然比珠阀30的直径小，因此珠阀30无法进入第一出液通道11。若干条竖直设置于第一出液通道11内壁的肋条11a既不会影响液体在第一出液通道11的流动，且能够有效地限制珠阀30进入第一出液通道11。
具体地，如图10所示，珠阀容置槽20由从下往上依次连接的下端面21、侧壁22和上端面23构成，下端面21较上端面23靠近出液口40，下端面21为一斜面，与水平面所成夹角β的范围在10°～30°之间，夹角β的角度最优选为20°。在容器倾倒时，珠阀30沿下端面21容易落入珠阀容置槽20中，避让出第一出液通道11和出液口40，使液体顺利从出液口40中流出；在容器从倾倒回到正立状态时，下端面21的设计有利于液体的回流，且有利于珠阀30以适当的速度回落至阀座41，如下端面21与水平面所成夹角β过大，珠阀30会过快回落至阀座41封堵了出液口40，导致大部分液体无法回流至容器内腔；如夹角β过小，则珠阀300在容器正置时不容易回落至阀座41，导致出液口40不会被封堵，瓶盖的密封功能失效。如下端面21与水平面所成夹角β的角度为20°，可使珠阀30在容器正置时沿下端面21回落至阀座41封堵出液口40，同时也保证珠阀30在下端面21上的回落速度不会过快，能够在大部分液体经由出液口40回流至容器内腔后再回落至阀座41并封堵出液口40。
如图9、10所示，第一出液通道11与珠阀容置槽20共同形成的连通腔体的横截面呈跑道形，可选地，两者的连通腔体也可以是圆形或椭圆形，但跑道形为最优选方案，第一出液通道11与珠阀容置槽20为并列设置的两段圆柱形腔体，用两个平面与该两段圆柱形腔体相切，由此形成了横截面为跑道形/胶囊形的连通内腔，使珠阀30在这一连通空间内任意变换位置不受阻碍。
作为优选方案，瓶盖所盖设的容器为可挤压的容器，在受到外力的挤压下容器内腔中的液体才会流出，由于第二出液通道12有足够的长度，因此当瓶盖和容器倒置时，液体会充盈第一出液通道11和第二出液通道12，空气无法进入容器内，因此达到压力平衡，液体无 法继续流动。
作为优选方案，如图11所示，瓶盖设有出液嘴50，设于第二出液通道12的末端。当瓶盖和容器被平躺放置时，容器瓶身的横截面呈非正圆形或类椭圆形，横截面上具有一中轴线l 1，中轴线l 1与水平面呈夹角设置，该中轴线也是出液嘴50的方向，也是第二出液通道7的轴线方向；中轴线l 1在出液嘴50的一侧高于另一侧，使珠阀30能够沿第一出液通道11移动且不落入珠阀容置槽20，同时使出液嘴50处于仰起的状态。
瓶盖和容器在被平躺放置时，珠阀30会离开阀座41沿第一出液通道11移动，由于珠阀容置槽20与第二出液通道12设于同一侧，出液嘴50处于仰起的状态，即容器没有向出液方向倾侧，因此珠阀30在沿第一出液通道11移动时也不会落入珠阀容置槽20中。如容器内腔1内液体较多，则在珠阀30离开阀座41并在第一出液通道11中移动时，液体会在极短时间内充满第一出液通道11和珠阀容置槽20，此时容器内部的压力达到平衡状态，在没有温差(即温度升高或内压增加/外力挤压容器)的情况下，液体不会自动流入第二出液通道12。
当瓶盖和容器被平躺放置时，如温度升高，则容器内部压力会增大，此时液体会流经第一出液通道11到达第二出液通道12，直至流出液体的液面与出液嘴50的位置持平，但由于出液嘴50处于仰起状态，提高了出液嘴50的高度，则液体在更高的内部压力下才能够流出容器的外部，在一般的温差条件下，液体不会自动流出容器外。因此，瓶盖和容器处于意外平躺状态时，出液嘴50的仰起设计能够降低液体流出的风险，也能降低液体流出的总量。
基于上一优选方案，结合图11和图12，在瓶盖和容器以图11的方式被平躺放置时，整个瓶盖和容器的纵剖面上具有一纵轴线l 2，纵轴线l 2与水平面呈夹角设置，该纵轴线也是第一出液通道11的轴线方向。从整个瓶盖和容器的纵剖面可知，瓶身上设有凸起60，以使纵轴线l 2在第一出液通道11的一侧低于另一侧，从而使珠阀30在容器被平躺放置时离开阀座41，沿第一出液通道11移动，但由于第一出液通道11内设有若干个肋条11a，因此珠阀30被限制于第一出液通道11的入口。瓶盖和容器处于平躺状态时，液体会在极短时间内充盈第一出液通道11以及珠阀容置槽20，这是瓶盖和容器内部的压力达到平衡，在没有温差或压强差的情况下，液体不会自动流入第二出液通道12。
本实施例中对于瓶盖的其他部件更具体的设计为：如图13所示，出液嘴50处设有盖塞51，盖塞51向第二出液通道12的延伸方向设有与盖塞51一体成型的密封柱塞52，密封柱塞52使盖塞51与第二出液通道12内壁过盈干涉，使容器形成密封的整体，保证储运销售 过程产品的密封和安全。
更具体地，密封柱塞52中设有易断线53，在最开始使用容器时通过旋转盖塞51打开瓶盖，当盖塞51被旋转时，密封柱塞52中的易断线53会断裂，易断线53断裂后无法复原，具有防窃取的功能。易断线53断裂后会在第二出液通道12中剩余一部分的密封柱塞52，剩余的密封柱塞52会使第二出液通道12的整体尺寸变小，在某些情形下更方便使用。
显然，本发明的上述实施例仅仅是为清楚地说明本发明技术方案所作的举例，而并非是对本发明的具体实施方式的限定。凡在本发明权利要求书的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本发明权利要求的保护范围之内。

Claims (13)

  1. 一种自关闭容器瓶盖，用于盖设在容器上，包括壳体、珠阀、液体流出通道以及珠阀活动腔，所述液体流出通道的一端与所述珠阀活动腔连通，所述液体流出通道的另一端与所述瓶盖的外部连通，所述珠阀置于所述珠阀活动腔中，其特征在于，
    所述珠阀活动腔在背向所述液体流出通道的一面设有出液口，所述出液口与所述容器的内腔连通；所述出液口处设有阀座，所述阀座与所述珠阀配合可封堵所述出液口；
    在所述瓶盖向所述液体流出通道的出液方向倾倒时，所述珠阀活动腔用于使所述珠阀避让所述出液口和所述液体流出通道，在所述瓶盖正置时，所述珠阀活动腔用于使所述珠阀回落至所述阀座并封堵所述出液口。
  2. 根据权利要求1所述的自关闭容器瓶盖，其特征在于，所述液体流出通道包括第一出液通道和第二出液通道；
    所述第一出液通道的一端与所述珠阀活动腔连通，另一端与所述第二出液通道连通；
    所述第二出液通道的一端与所述第一出液通道的一端连通，另一端与所述容器的外部连通；
    所述第二出液通道的出液方向偏向所述瓶盖的第一侧面；
    所述第一出液通道与所述珠阀活动腔的连通处的位置，以及所述出液口设于所述珠阀活动腔的位置均远离所述第一侧面；
    在所述瓶盖向所述第二出液通道的出液方向倾倒时，所述珠阀离开所述阀座并移动至所述珠阀活动腔中靠近所述第一侧面的位置，避让所述出液口和所述第一出液通道。
  3. 根据权利要求2所述的自关闭容器瓶盖，其特征在于，所述珠阀活动腔的截面长度为所述珠阀的直径的2倍～4倍。
  4. 根据权利要求2所述的自关闭容器瓶盖，其特征在于，所述珠阀活动腔通过斜面连接所述阀座；
    在所述容器正置时，所述珠阀沿所述斜面回落至所述阀座并封堵所述出液口。
  5. 根据权利要求3～4任一项所述的自关闭容器瓶盖，其特征在于，所述珠阀活动腔的截面为圆形；所述珠阀活动腔的圆心在所述第二出液通道的出液方向上；
    所述第一出液通道与所述珠阀活动腔的连通处，以及所述出液口均设于所述珠阀活动腔远离所述第一侧面的半圆范围内，且均与所述珠阀活动腔的侧壁保持有距离。
  6. 根据权利要求3～4任一项所述的自关闭容器瓶盖，其特征在于，所述珠阀活动腔的截面为椭圆形；所述珠阀活动腔的长轴在所述第二出液通道的出液方向上；
    所述第一出液通道与所述珠阀活动腔的连通处，以及所述出液口均设于所述珠阀活动腔远离所述第一侧面的半椭圆范围内，且均与所述珠阀活动腔的侧壁保持有距离。
  7. 根据权利要求4所述的自关闭容器瓶盖，其特征在于，所述斜面与水平面所成夹角的范围在10°～30°之间。
  8. 一种自关闭容器瓶盖，用于盖设于容器，包括壳体、珠阀、液体流出通道、与所述容器的内腔连通的出液口、设于所述出液口的阀座，以及珠阀容置槽，所述珠阀与所述阀座配合可封堵所述出液口，其特征在于，
    所述珠阀容置槽设于所述液体流出通道的一侧面，与所述液体流出通道和所述出液口连通，其开口的尺寸大于所述珠阀的尺寸；
    在所述瓶盖向所述液体流出通道的出液方向倾倒时，所述珠阀容置槽用于使所述珠阀避让所述出液口和所述液体流出通道，在所述瓶盖正置时，所述珠阀容置槽用于使所述珠阀回落至所述阀座并封堵所述出液口。
  9. 根据权利要求8所述的自关闭容器瓶盖，其特征在于，所述液体流出通道设有限位件，用于限制所述珠阀进入所述液体流出通道。
  10. 根据权利要求9所述的自关闭容器瓶盖，其特征在于，所述液体流出通道包括第一出液通道和第二出液通道；
    所述第一出液通道与所述珠阀容置槽连通以及所述第二出液通道连通；
    所述第二出液通道的一端与所述第一出液通道的一端连通，另一端与所述容器的外部连通；
    所述第二出液通道的出液方向偏向所述容器的第一侧面，所述珠阀容置槽设于所述第一出液通道靠近所述第一侧面的一侧；
    在所述瓶盖向所述第二出液通道的出液方向倾倒时，所述珠阀离开所述阀座并移动至所述珠阀容置槽，避让所述出液口和所述第一出液通道；
    所述限位件为若干条肋条，竖直设置于所述第一出液通道的内壁。
  11. 根据权利要求10所述的自关闭容器瓶盖，其特征在于，
    所述珠阀容置槽由从下往上依次连接的下端面、侧壁和上端面构成，所述下端面较所述上端面靠近所述出液口，所述下端面与水平面所成夹角的范围在10°～30°之间。
  12. 根据权利要求11所述的自关闭容器瓶盖，其特征在于，
    当所述瓶盖被平躺放置时，所述瓶盖的横截面有一中轴线，所述中轴线与水平面呈夹角 设置，使所述珠阀沿所述第一出液通道移动且不落入所述珠阀容置槽，同时使第二出液通道与壳体外部连通的开口位置处于仰起状态。
  13. 根据权利要求12所述的自关闭容器瓶盖，其特征在于，所述第一出液通道与所述珠阀容置槽共同形成的连通腔体的横截面呈跑道形。
PCT/CN2021/105435 2020-08-20 2021-07-09 自关闭容器瓶盖 WO2022037310A1 (zh)

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