Liquid dispenser, fluid container, and fluid pumping method

Abstract

The present invention discloses a liquid dispenser, a fluid container, and a fluid pumping method, wherein the liquid dispenser has a pumping space, a pumping channel, and a pumping out channel. When the pumping channel is allowed to connect to the pumping space and the pumping out channel is blocked from connecting to the pumping space, the fluid stored in a container body is pumped into the pumping space through the pumping channel. When the pumping channel is blocked from connecting to the pumping space and the pumping out channel is allowed to connect to the pumping space, the fluid stored in the pumping space is pumped out of the liquid dispenser.

Description

Technical Field

[0001] The present invention relates to an extractor, and more particularly to a liquid dispenser, a fluid container and a fluid pumping method. Background Art

[0002] Lotions such as shower gel, shampoo, and facial cleanser, as well as liquids such as alcohol and disinfectant, are usually stored in a bottle container to facilitate the transportation, carrying, and use of these fluids. When a user takes the fluid stored in the bottle container, on the one hand, the user hopes to avoid contaminating the fluid stored in the bottle container during the process of taking the fluid, and on the other hand, the user hopes to more accurately control the amount of fluid taken from the bottle container to avoid waste. In addition, with the increasing severity of environmental problems and the continuous enhancement of people's environmental awareness, the bottle used to store fluids needs to be recyclable and reused. Generally speaking, the simpler the process of recycling and reusing the bottle, the more conducive it is to the full recovery of the bottle. Summary of the Invention

[0003] One object of the present invention is to provide a liquid dispenser, a fluid container, and a fluid pumping method, wherein the liquid dispenser can extract the fluid contained in the containing space of the fluid container and can prevent the fluid still contained in the containing space of the fluid container from being contaminated.

[0004] One object of the present invention is to provide a liquid dispenser, a fluid container, and a fluid pumping method, wherein the liquid dispenser can more accurately control the amount of fluid taken from the containing space of the fluid container to avoid waste.

[0005] One object of the present invention is to provide a liquid dispenser, a fluid container, and a fluid pumping method, wherein the liquid dispenser can be recycled and reused as a whole, thereby simplifying the process of recycling and reusing the liquid dispenser. Preferably, the liquid dispenser is made entirely of plastic. During the recycling and reusing process, the liquid dispenser does not need to be disassembled into its individual components, thereby simplifying the recycling and reusing process.

[0006] One object of the present invention is to provide a liquid dispenser, a fluid container and a fluid pumping method, wherein the liquid dispenser provides a head cap, a piston and a pump body, the piston lower end and the piston upper end of the piston are movably mounted on the pump body and the head cap respectively, and a pump storage space is formed between the piston lower end and the pump body, and by adjusting the relative position of the piston lower end and the pump body, a pumping channel formed in the pump body can be allowed or prevented from connecting to the pump storage space, and by adjusting the relative position of the piston upper end and the head cap, a pumping channel formed in the head cap can be allowed or prevented from connecting to the pump storage space.

[0007] One object of the present invention is to provide a liquid dispenser, a fluid container, and a fluid pumping method, wherein the liquid dispenser only allows one of the pump-in channel and the pump-out channel to communicate with the pump storage space, so that the liquid dispenser can extract the fluid contained in a container body.

[0008] One object of the present invention is to provide a liquid dispenser, a fluid container, and a fluid pumping method, wherein in a first pressing stage, the pumping channel is allowed to connect to the pump storage space, and in a second pressing stage, the space of the pump storage space becomes smaller and the pressure increases, so as to allow the fluid stored in the pump storage space to be discharged from the fluid container through the pumping channel, so that the fluid container can reduce the force with which the user presses the head cap, so as to facilitate user use.

[0009] One object of the present invention is to provide a liquid dispenser, a fluid container, and a fluid pumping method, wherein in a first recovery stage, the pump-out channel is prevented from connecting to the pump storage space, and in a second recovery stage, the space of the pump storage space becomes larger and the pressure decreases to allow the pump-in channel to connect to the pump storage space so that the fluid stored in the container body can be replenished to the pump storage space through the pump-in channel, so that when the user removes the external force pressing the head cap, the fluid stored in the pump storage space is prevented from continuing to discharge the fluid container through the pump-out channel.

[0010] One object of the present invention is to provide a liquid dispenser, a fluid container and a fluid pumping method, wherein the liquid dispenser provides a spring, which is arranged between the head cap and the pump body, and the spring cooperates with the high end of the piston and the movable installation stage of the head cap so that the liquid dispenser has a first pressing stage, a second pressing stage, a first recovery stage and a second recovery stage.

[0011] One object of the present invention is to provide a liquid dispenser, a fluid container, and a fluid pumping method, wherein the high end of the piston is mounted on the head cap, so that in the second recovery stage, when the spring pushes the head cap to move in a direction away from the pump body, the head cap can drive the piston to move synchronously and with the same amplitude in a direction away from the pump body, thereby avoiding the need to set a spring between the piston and the pump body, thereby simplifying the structure of the liquid dispenser, reducing the cost of the liquid dispenser, and improving the reliability of the liquid dispenser.

[0012] One object of the present invention is to provide a liquid dispenser, a fluid container, and a fluid pumping method, wherein the liquid dispenser can avoid arranging the spring in the pump storage space, thereby avoiding contact between the spring and the fluid pumped into the pump storage space, so that after the liquid dispenser is used for a long time, not only the stability and reliability of the spring can be guaranteed, but also the fluid pumped into the pump storage space can be avoided from being contaminated.

[0013] According to one aspect of the present invention, the present invention provides a liquid dispenser, which includes a ball valve, a spring, a head cap, a pump body and a piston, and has a pump storage space, a pump inlet channel and a pump out channel, wherein the pump storage space is formed between the pump body and the piston, the pump inlet channel is formed in the pump body, and the pump body channel is formed in the head cap; wherein the pump body has a pump body space and a top opening connected to the pump body space, wherein the piston has a piston lower end and a piston high end corresponding to the piston lower end, and the piston lower end of the piston is movably mounted on the pump through the top opening of the pump body. The pump body space of the pump body is formed between the piston lower end of the piston and the pump body, and the piston high end of the piston is movably mounted on the head cap, and the pump-out channel is allowed or prevented from communicating with the pump-storage space by changing the relative positions of the piston high end and the head cap, wherein the ball valve is movably arranged in the pump body space of the pump body to allow or prevent the pump-in channel from communicating with the pump-storage space, wherein the spring is arranged between the pump body and the head cap to enable the head cap to drive the piston to move in a direction away from the pump body.

[0014] According to one embodiment of the present invention, the liquid dispenser further comprises a connecting cover, wherein the pump body is fixedly mounted on the connecting cover, and the head cap is movably mounted on the connecting cover.

[0015] According to one embodiment of the present invention, the piston includes a piston column and a piston wall surrounding the outer side of the piston column and a piston passage formed between the piston column and the piston wall, the high end of the piston column has a flange portion, which protrudes toward the piston passage; the head cap includes a cap column and a cap body surrounding the outer side of the cap column and a head cap space formed between the cap column and the cap body, the cap column is hollow, and the middle part of the inner wall of the cap column has a recessed portion; the high end of the piston column of the piston extends into and is movably mounted on the hollow part of the cap column of the head cap, and the flange portion of the piston column can fit against the inner wall of the cap column, the high end of the piston wall of the piston extends into and is movably mounted on the head cap space of the head cap, the free end of the cap column of the head cap extends into and is movably mounted on the piston passage of the piston, and at least a part of the outer wall of the cap column fits against the inner wall of the piston wall.

[0016] According to one embodiment of the present invention, the piston includes a piston column and a piston wall surrounding the outer side of the piston column and a piston passage formed between the piston column and the piston wall, and the high end of the piston column has a recessed portion; wherein the head cap includes a cap column and a cap body surrounding the outer side of the cap column and a head cap space formed between the cap column and the cap body, the cap column is hollow, and the outer wall of the cap column has a flange portion, which protrudes toward the cap body; wherein the high end of the piston column of the piston extends into and is movably mounted on the hollow portion of the cap column of the head cap, and the flange portion of the cap column can fit the outer wall of the piston column, the high end of the piston wall of the piston extends into and is movably mounted on the head cap space of the head cap, the free end of the cap column of the head cap extends into and is movably mounted on the piston passage of the piston, and at least a portion of the outer wall of the cap column fits the inner wall of the piston wall.

[0017] According to one embodiment of the present invention, the flange portion of the piston column is an annular flange surrounding the entire circumference of the piston column, wherein the recessed portion of the cap column is an annular recess surrounding the entire circumference of the cap column.

[0018] According to one embodiment of the present invention, the recessed portion of the piston column is an annular recess surrounding the entire periphery of the piston column, wherein the flange portion of the cap column is an annular flange surrounding the entire periphery of the cap column.

[0019] According to one embodiment of the present invention, the head cap has an installation space, which is formed on the cap body and connected to the head cap space, wherein the high end of the piston wall of the piston forms a installation protrusion, which protrudes toward the cap body of the head cap, wherein the installation protrusion of the piston wall is movably installed in the installation space of the head cap.

[0020] According to one embodiment of the present invention, the head cap has an installation space, which is formed on the cap column and connected to the head cap space, wherein the high end of the piston wall of the piston forms a installation protrusion, which protrudes toward the piston column, wherein the installation protrusion of the piston wall is movably installed in the installation space of the head cap.

[0021] According to one embodiment of the present invention, the pump body has a plurality of retaining arms which divide the pump body space and form a movable space at the bottom of the pump body space, wherein the ball valve is movably retained in the movable space.

[0022] According to one embodiment of the present invention, the ball valve, the spring, the head cap, the pump body and the piston are all made of plastic.

[0023] According to another aspect of the present invention, the present invention further provides a fluid container, comprising:

[0024] a container body; and

[0025] A liquid dispenser, wherein the liquid dispenser is installed on the container body, wherein the liquid dispenser further includes a ball valve, a spring, a head cap, a pump body and a piston, and has a pump storage space, a pump inlet channel and a pump out channel, the pump storage space is formed between the pump body and the piston, the pump inlet channel is formed in the pump body, and the pump body channel is formed in the head cap; wherein the pump body has a pump body space and a top opening connected to the pump body space, wherein the piston has a piston lower end and a piston high end corresponding to the piston lower end, the piston lower end of the piston is movably moved through the top opening of the pump body The pump body space is movably mounted on the pump body to form the pump storage space between the piston lower end of the piston and the pump body, the piston high end of the piston is movably mounted on the head cap, and the pump-out channel is allowed or prevented from connecting to the pump storage space by changing the relative position of the piston high end and the head cap, wherein the ball valve is movably arranged in the pump body space of the pump body to allow or prevent the pump-in channel from connecting to the pump storage space, wherein the spring is arranged between the pump body and the head cap to enable the head cap to drive the piston to move in a direction away from the pump body.

[0026] According to one embodiment of the present invention, the pump body has a plurality of retaining arms which divide the pump body space and form a movable space at the bottom of the pump body space, wherein the ball valve is movably retained in the movable space.

[0027] According to one embodiment of the present invention, the piston includes a piston column and a piston wall surrounding the outer side of the piston column and a piston passage formed between the piston column and the piston wall, the high end of the piston column has a flange portion, which protrudes toward the piston passage; the head cap includes a cap column and a cap body surrounding the outer side of the cap column and a head cap space formed between the cap column and the cap body, the cap column is hollow, and the middle part of the inner wall of the cap column has a recessed portion; the high end of the piston column of the piston extends into and is movably mounted on the hollow part of the cap column of the head cap, and the flange portion of the piston column can fit against the inner wall of the cap column, the high end of the piston wall of the piston extends into and is movably mounted on the head cap space of the head cap, the free end of the cap column of the head cap extends into and is movably mounted on the piston passage of the piston, and at least a part of the outer wall of the cap column fits against the inner wall of the piston wall.

[0028] According to one embodiment of the present invention, the piston includes a piston column and a piston wall surrounding the outer side of the piston column and a piston passage formed between the piston column and the piston wall, and the high end of the piston column has a recessed portion; wherein the head cap includes a cap column and a cap body surrounding the outer side of the cap column and a head cap space formed between the cap column and the cap body, the cap column is hollow, and the outer wall of the cap column has a flange portion, which protrudes toward the cap body; wherein the high end of the piston column of the piston extends into and is movably mounted on the hollow portion of the cap column of the head cap, and the flange portion of the cap column can fit the outer wall of the piston column, the high end of the piston wall of the piston extends into and is movably mounted on the head cap space of the head cap, the free end of the cap column of the head cap extends into and is movably mounted on the piston passage of the piston, and at least a portion of the outer wall of the cap column fits the inner wall of the piston wall.

[0029] According to one embodiment of the present invention, the head cap has an installation space, which is formed on the cap body and connected to the head cap space, wherein the high end of the piston wall of the piston forms a installation protrusion, which protrudes toward the cap body of the head cap, wherein the installation protrusion of the piston wall is movably installed in the installation space of the head cap.

[0030] According to one embodiment of the present invention, the ball valve, the spring, the head cap, the pump body and the piston are all made of plastic.

[0031] According to one embodiment of the present invention, the liquid dispenser further comprises a connecting cover, wherein the pump body is fixedly mounted on the connecting cover, and the head cap is movably mounted on the connecting cover.

[0032] According to another aspect of the present invention, the present invention further provides a fluid pumping method, wherein the fluid pumping method comprises the following steps:

[0033] (a) allowing a pumping passage formed in the head cap to communicate with a pumping storage space formed between the piston lower end and the pump body when the relative positions of the head cap and the piston upper end are changed;

[0034] (b) when the head cap drives the piston to move toward the pump body and compresses the size of the pump storage space, the pump-out channel is maintained in communication with the pump storage space, and a pump-in channel formed in the pump body is prevented from being communicated with the pump storage space;

[0035] (c) preventing the pump-out passage from communicating with the pump storage space when the relative positions of the head cap and the piston upper end of the piston are changed again; and

[0036] (d) When the head cap drives the piston to move in a direction away from the pump body to expand the spatial size of the pump storage space, the pump-out channel and the pump storage space are maintained in a non-connected state, and the pump-in channel and the pump storage space are allowed to be connected.

[0037] According to one embodiment of the present invention, in the step (d), the non-connected state between the pump-out channel and the pump storage space is maintained by a spring surrounding the piston and held between the head cap and the pump body.

[0038] According to one embodiment of the present invention, in step (b), the pumping channel and the pump storage space are prevented from being connected by a ball valve retained in the pump body space of the pump body, and in step (d), the ball valve automatically moves in the pump body space of the pump body to allow the pumping channel and the pump storage space to be connected. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 It is a three-dimensional schematic diagram of a fluid container according to a preferred embodiment of the present invention.

[0040] Figure 2 1 is an exploded schematic diagram of the fluid container according to the preferred embodiment of the present invention.

[0041] Figure 3 2 is a schematic cross-sectional view of the fluid container according to the preferred embodiment of the present invention.

[0042] Figures 4A to 4E 2 is a schematic diagram of the working process of the fluid container according to the above preferred embodiment of the present invention.

[0043] Figure 5 It is a cross-sectional schematic diagram of a modified implementation of the fluid container according to the above preferred embodiment of the present invention.

[0044] Figure 6 It is a cross-sectional schematic diagram of another modified implementation of the fluid container according to the above preferred embodiment of the present invention. DETAILED DESCRIPTION

[0045] The following description is intended to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are for illustrative purposes only, and those skilled in the art will readily appreciate other obvious variations. The basic principles of the present invention defined in the following description may be applied to other embodiments, variations, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.

[0046] Those skilled in the art should understand that, in the disclosure of the present invention, the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like to indicate orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms should not be understood as limiting the present invention.

[0047] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the elements may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0048] Reference is made to the accompanying drawings of the present invention. Figures 1 to 4E A fluid container according to a preferred embodiment of the present invention is disclosed and illustrated in the following description, wherein the fluid container includes a container body 10 and a liquid dispenser 20.

[0049] Specifically, the container body 10 has a holding space 11 and a space opening 12 connected to the holding space 11. The liquid dispenser 20 is installed at the opening of the container body 10 in such a manner that a portion of the liquid dispenser 20 extends from the space opening 12 of the container body 10 into the holding space 11, so as to extract the fluid stored in the space opening 12 of the container body 10. Typically, a threaded structure is provided at the opening of the container body 10, and a threaded structure is provided at a corresponding position of the liquid dispenser 20. The threaded structure of the liquid dispenser 20 and the threaded structure of the container body 10 cooperate with each other to allow the liquid dispenser 20 to be screwed onto the container body 10.

[0050] It is worth mentioning that the type of fluid contained in the containing space 11 of the container body 10 is not limited in the fluid container of the present invention. For example, the fluid contained in the containing space 11 of the container body 10 can be lotions such as shower gel, shampoo, and facial cleanser, or liquids such as alcohol and disinfectant.

[0051] Reference Attachment Figures 1 to 4E The liquid dispenser 20 has a pump storage space 201, a pump-in channel 202 and a pump-out channel 203, wherein when the pump-in channel 202 is allowed to connect to the pump storage space 201, the pump-out channel 203 is blocked from connecting to the pump storage space 201, so that the fluid stored in the containing space 11 of the container body 10 can be pumped into the pump storage space 201. Accordingly, when the pump-out channel 203 is connected to the pump storage space 201, the pump-in channel 202 is blocked from connecting to the pump storage space 201, so that the fluid stored in the pump storage space 201 is pumped out of the fluid container.

[0052] In other words, the liquid dispenser 20 of the fluid container has three states, namely a storage state, a pumping state, and a pumping state, and the liquid dispenser 20 can be switched between the storage state, the pumping state, and the pumping state. When the liquid dispenser 20 is in the storage state, the pumping channel 202 and the pumping channel 203 of the liquid dispenser 20 are blocked from communicating with the pumping storage space 201, thereby preventing the fluid stored in the containing space 11 of the container body 10 from being pumped into the pumping storage space 201 and preventing the fluid stored in the pumping storage space 201 from being pumped out of the fluid container. When the liquid dispenser 20 is in the pumping state, the pumping channel 202 is allowed to communicate with the pumping space 201 to allow the fluid stored in the holding space 11 of the container body 10 to be pumped into the pumping space 201. Accordingly, the pumping channel 203 is blocked from communicating with the pumping space 201 to prevent the fluid stored in the pumping space 201 from being pumped out of the fluid container. When the liquid dispenser 20 is in the pumping state, the pumping channel 203 is allowed to communicate with the pumping space 201 to allow the fluid stored in the pumping space 201 to be pumped out of the fluid container. Accordingly, the pumping channel 202 is blocked from communicating with the pumping space 201 to prevent the fluid stored in the holding space 11 of the container body 10 from being pumped into the pumping space 201.

[0053] Specifically, please refer to the attached Figures 1 to 4EThe liquid dispenser 20 includes a pump body 21, a ball valve 22, a piston 23, a head cap 24, and a spring 25. The pump body 21 has a pump body space 211 and a top opening 212 connected to the pump body space 211. The pumping channel 202 is formed in the pump body 21. The ball valve 22 is movably retained in the pump body space 211 of the pump body 21, and the ball valve 22 is configured to allow or prevent the pumping channel 202 from connecting to the pump body space 211 of the pump body 21. The piston 23 has a piston lower end 2301 and a piston upper end 2302 corresponding to the piston lower end 2301, wherein the piston lower end 2301 of the piston 23 is movably mounted in the pump body space 211 of the pump body 21 through the top opening 212 of the pump body 21 to form the pump storage space 201 between the piston 23 and the pump body 21, wherein the piston upper end 2302 of the piston 23 is movably mounted on the head cap 24. The pump-out channel 203 is formed in the head cap 24, wherein the pump-out channel 203 can be allowed or prevented from communicating with the pump storage space 201 by changing the relative position of the piston upper end 2302 of the piston 23 and the head cap 24. The spring 25 is arranged between the head cap 24 and the pump body 21, wherein after the head cap 24 is pressed and displaced toward the pump body 21, the head cap 24 and the pump body 21 can compress the spring 25 so that the spring 25 accumulates elastic potential energy. After the external force pressing the head cap 24 is removed, the spring 25 pushes the head cap 24 to move away from the pump body 21 and restores its initial position in the process of releasing the elastic potential energy.

[0054] Preferably, the spring 25 is sleeved on the outside of the pump body 21. In this way, the liquid dispenser 20 can avoid arranging the spring 25 in the pump storage space 201, thereby avoiding contact between the spring 25 and the fluid pumped into the pump storage space 201. Therefore, after the liquid dispenser 20 is used for a long time, not only the stability and reliability of the spring 25 can be guaranteed, but also the fluid pumped into the pump storage space 201 can be avoided from being contaminated.

[0055] In the liquid dispenser 20 of the present invention, the head cap 24 and the piston high end 2302 of the piston 23 are movably mounted, so that when an external force is applied to the head cap 24 to press the head cap 24, the liquid dispenser 20 has a first pressing stage and a second pressing stage, and when the external force applied to the head cap 24 is withdrawn, the liquid dispenser 20 has a first recovery stage and a second recovery stage.

[0056] Specifically, in the first pressing stage, of the head cap 24 and the piston 23, only the head cap 24 generates displacement relative to the pump body 21, so that the relative positions of the head cap 24 and the piston high end 2302 of the piston 23 are adjusted to allow the pump-out channel 203 to communicate with the pump storage space 201. In the second pressing stage, the head cap 24 and the piston 23 generate displacement toward the pump body 21 synchronously and with the same amplitude to compress the size of the pump storage space 201 and increase the pressure inside the pump storage space 201, so that the fluid stored in the pump storage space 201 is pumped out of the fluid container through the pump-out channel 203. It can be understood that the spring 25 disposed between the head cap 24 and the pump body 12 is compressed at least in the second pressing stage to accumulate elastic potential energy. Preferably, the spring 25 disposed between the head cap 24 and the pump body 21 is compressed in both the first pressing stage and the second pressing stage to accumulate elastic potential energy, so that the liquid dispenser 20 can be ensured to be in the storage state when no pressure is applied to the head cap 24. In other words, when no pressure is applied to the head cap 24, the spring 25 is used to ensure that the pump-out channel 203 and the pump storage space 201 are prevented from communicating. In the first recovery stage, the spring 25 only pushes the head cap 24 and the piston 23 to move in a direction away from the pump body 21, so that the relative positions of the head cap 24 and the piston high end 2302 of the piston 23 are adjusted to prevent the pump-out channel 203 from communicating with the pump storage space 201. In the second recovery stage, the spring 25 pushes the head cap 24 and the piston 23 synchronously and at the same amplitude to move away from the pump body 21 to expand the size of the pump storage space 201 and reduce the pressure inside the pump storage space 201. In this way, the position of the ball valve 22 in the pump body space 211 of the pump body 21 is changed to allow the pumping channel 202 to be connected to the pumping space 201, so as to allow the fluid to be pumped into the pumping space 201 through the pumping channel 202.

[0057] Further, refer to the attached Figures 1 to 4EThe pump body 21 has a plurality of retaining arms 213, which separate the pump body space 211 and form a movable space 2111 at the bottom of the pump body space 211. The ball valve 22 is movably retained in the movable space 2111. In this way, in the second recovery stage, when the spatial size of the pump storage space 201 expands and the pressure decreases, the ball valve 22 moves upward in the movable space 2111 to allow the pumping channel 202 and the pump storage space 201 to be connected and further allow the fluid stored in the storage space 11 of the container body 10 to be pumped into the pump storage space 201 through the pumping channel 202. When the pressure in the pump storage space 201 is consistent with the pressure in the storage space 11 of the container body 10, the ball valve 22 moves downward in the movable space 2111 to prevent the pumping channel 202 and the pump storage space 201 from being connected.

[0058] In other words, in the liquid dispenser 20 of the present invention, the pump body 21 forms the movable space 2111 by arranging a plurality of retaining arms 213 in the pump body space 211, thereby limiting the movable range of the ball valve 22 to ensure that when the pressure in the pump storage space 201 is consistent with the pressure in the storage space 11 of the container body 10, the ball valve 22 can reliably prevent the pumping channel 202 and the pump storage space 201 from being connected.

[0059] Continue to refer to the attached Figures 1 to 4E The piston 23 further includes a piston column 231 and a piston wall 232 surrounding the outer side of the piston column 231, and a piston channel 233 formed between the piston column 231 and the piston wall 232, wherein the upper end of the piston column 231 has a flange portion 2311, which protrudes toward the piston channel 233. The head cap 24 further includes a cap column 241 and a cap body 232 surrounding the outer side of the cap column 241, and a head cap space 243 formed between the cap column 241 and the cap body 242, wherein the cap column 241 is hollow, and the middle part of the inner wall of the cap column 241 has a recessed portion 2411, wherein the pump-out channel 203 is formed in the cap column 241 and communicates with the external environment through the cap body 242, and the pump-out channel 203 and the recessed portion 2411 of the cap column 241 are communicated with each other.

[0060] The high end of the piston column 231 of the piston 23 extends into and is movably mounted on the hollow part of the cap column 241 of the head cap 24, and the flange part 2311 of the piston column 231 can fit on the inner wall of the cap column 241, wherein the high end of the piston wall 232 of the piston 23 extends into and is movably mounted on the head cap space 243 of the head cap 24, wherein the free end of the cap column 241 of the head cap 24 extends into and is movably mounted on the piston channel 233 of the piston 23, and at least a part of the outer wall of the cap column 241 is arranged to fit on the inner wall of the piston wall 232, thereby realizing the movable installation of the piston high end 2302 of the piston 23 and the head cap 24, that is, the piston high end 2302 of the piston 23 is movably mounted on the head cap 24. When the head cap 24 is pressed to allow the head cap 24 to be displaced relative to the piston 23, at least a portion of the outer wall of the cap column 241 is configured to always fit against the inner wall of the piston wall 232 to avoid forming a gap between the outer wall of the cap column 241 and the inner wall of the piston wall 232. At the same time, the flange portion 2311 of the piston column 231 corresponds to the recessed portion 2411 of the cap column 241 to form a gap between the outer wall of the piston column 231 and the inner wall of the cap column 241 to allow the pump-out channel 203 to connect to the pump storage space 201.

[0061] Preferably, continue to refer to the attached Figures 1 to 4E The flange portion 2311 of the piston column 231 is an annular flange, that is, the flange portion 2311 surrounds the entire circumference of the piston column 231. Correspondingly, the recessed portion 2411 of the cap column 241 is an annular recess, that is, the recessed portion 2411 surrounds the entire circumference of the cap column 241.

[0062] Optionally, with Figures 1 to 4E The fluid container shown is different in that the Figure 5 In this preferred example of the fluid container shown, the flange portion 2311 is formed on the inner wall of the cap column 241, and correspondingly, the recessed portion 2411 is formed on the piston column 231. In a preferred example, the flange portion 2311 surrounds the entire circumference of the cap column 241, and the recessed portion 2411 surrounds the entire circumference of the piston column 231.

[0063] Continue to refer to the attached Figures 1 to 4EThe free end of the cap column 241 of the head cap 24 has a convex ring portion 2412, which protrudes toward the piston wall 232, and the convex ring portion 2412 of the head cap 241 is always in contact with the inner wall of the piston wall 232 to avoid the formation of a gap between the outer wall of the cap column 241 and the inner wall of the piston wall 232.

[0064] Continue to refer to the attached Figures 1 to 4E The head cap 24 has an installation space 244, which is formed on the cap body 242 and connected to the head cap space 243, wherein the high end of the piston wall 232 of the piston 23 forms a mounting protrusion 2321, which protrudes toward the cap body 242 of the head cap 24, wherein the mounting protrusion 2321 of the piston wall 232 is movably mounted in the installation space 244 of the head cap 24, so that the head cap 24 and the piston 23 are not separated from each other, allowing the head cap 24 to produce displacement relative to the piston 23. Preferably, the installation space 244 of the head cap 24 is an annular space, that is, the installation space 244 surrounds the entire circumference of the cap body 242. Correspondingly, the installation protrusion 2321 of the piston wall 232 is an annular protrusion, that is, the installation protrusion 2321 surrounds the entire circumference of the piston wall 232.

[0065] Optionally, with Figures 1 to 4E The fluid container shown is different in that the Figure 6 In this preferred example of the fluid container shown, the mounting space 244 is formed on the cap column 241 and is connected to the head cap space 2423, and the mounting protrusion 2321 protrudes in the direction of the piston column 231, wherein the mounting protrusion 2321 of the piston wall 232 is movably mounted on the mounting space 244 of the head cap 24.

[0066] Continue to refer to the attached Figures 1 to 4E The liquid dispenser 20 further includes a connecting cover 26, wherein the connecting cover 26 includes a screw cap 261, a lower extending annular wall 262, and an upper extending annular wall 263, wherein the lower extending annular wall 262 integrally extends downward from the lower surface of the screw cap 261 for fixedly mounting the pump body 21, and the upper extending annular wall 263 integrally extends upward from the upper surface of the screw cap 261 for movably mounting the head cap 24. The screw cap 261 of the connecting cover 26 is configured to be mounted on the container body 10 to mount the liquid dispenser 20 on the container body 10.

[0067] Furthermore, the head cap 24 includes a head cap mounting ring 245, which extends downward from the cap body 242 as a whole, and the head cap mounting ring 245 has a head cap mounting buckle 2451. Correspondingly, the upper extension ring wall 263 of the connecting cover 26 has a cover body mounting buckle 2631, wherein the cover body mounting buckle 2631 of the connecting cover 26 and the head cap mounting buckle 2451 of the head cap 24 cooperate with each other, thereby allowing the head cap 24 to be displaced relative to the connecting cover 26 while ensuring that the head cap 24 and the connecting cover 26 will not detach from each other.

[0068] The pump body 21, the ball valve 22, the piston 23, the head cap 24 and the spring 25 of the liquid dispenser 20 are all made of plastic, that is, the liquid dispenser 20 is made entirely of plastic. In this way, during the process of recycling and reusing the liquid dispenser 20, there is no need to disassemble the liquid dispenser 20 into individual parts, thereby simplifying the process of recycling and reusing the liquid dispenser 20.

[0069] Attachment Figures 4A to 4E The working process of the fluid container is shown.

[0070] Reference Attachment Figure 4A , the head cap 24 is not pressurized and the liquid dispenser 20 is in the storage state. At this time, the spring 25 has a tendency to move the head cap 24 away from the pump body 21, and the flange portion 2311 of the piston column 231 fits against the inner wall of the cap column 241 to avoid a gap between the piston column 231 and the cap column 241. In this way, the pump-out channel 203 is prevented from connecting to the pump storage space 201, and the pressure in the pump storage space 201 is consistent with the pressure in the storage space 11 of the container body 10, and the ball valve 22 prevents the pump-in channel 202 from connecting to the pump storage space 201.

[0071] Reference Attachment Figure 4B In the first pressing stage, the head cap 24 is pressed and has a displacement moving toward the pump body 21 while the piston 23 remains stationary. At this time, the spring 25 is compressed and continues to accumulate elastic potential energy. The relative position between the head cap 24 and the piston high end 2302 of the piston 23 is changed to allow the flange portion 2311 of the piston column 231 to correspond to the recessed portion 2411 of the cap column 241 to create a gap between the piston column 231 and the cap column 241, so that the pump-out channel 203 is allowed to connect to the pump storage space 201.

[0072] Reference Attachment Figure 4CIn the second pressing stage, the head cap 24 is continuously pressed and further displaced toward the pump body 21. At this time, the spring 25 is further compressed to accumulate elastic potential energy, and there is always a gap between the piston column 231 and the cap column 241, allowing the pump-out channel 203 to always be connected to the pump storage space 201. The head cap 24 drives the piston 23 to move toward the pump body 21 in a synchronous and equal manner, so that the size of the pump storage space 201 becomes smaller and the pressure in the pump storage space 201 is increased. Since in this process, the piston 22 can always prevent the pump-in channel 202 from being connected to the pump storage space 201, the fluid stored in the pump storage space 201 can be pumped out of the liquid dispenser 20 through the pump-out channel 203.

[0073] Reference Attachment Figure 4D In the first recovery stage, the spring 25 pushes the head cap 24 away from the pump body 21 while the piston 23 remains stationary during the process of restoring the initial state. At this time, the relative position between the head cap 24 and the high end 2302 of the piston 23 is changed to allow the flange portion 2311 of the piston column 231 to fit against the inner wall of the cap column 241 to avoid a gap between the piston column 231 and the cap column 241, so that the pump-out channel 203 is prevented from connecting to the pump storage space 201.

[0074] Reference Attachment Figure 4E In the second recovery stage, the spring 25 continues to restore its initial state and further pushes the head cap 24 in the direction away from the pump body 21. At this time, the head cap 24 drives the piston 23 to move in a synchronous and equal manner in the direction away from the pump body 21, so that the size of the pump storage space 201 becomes larger and the pressure in the pump storage space 201 is reduced. Since the pressure in the storage space 11 of the container body 10 is greater than the pressure in the pump storage space 201 of the liquid dispenser 20, the ball valve 22 is pushed upward in the active space 2111 of the pump body 21 to allow the pumping channel 202 to connect to the pumping space 201. At this time, the fluid stored in the storage space 11 of the container body 10 is pumped into the pumping space 201 through the pumping channel 202.

[0075] It can be understood that when the pressure in the pump storage space 201 is consistent with the pressure in the storage space 11 of the container body 10, the ball valve 22 moves downward in the active space 2111 to prevent the pumping channel 202 and the pump storage space 201 from being connected. At this time, the liquid dispenser 20 is in the storage state.

[0076] According to another aspect of the present invention, the present invention further provides a fluid pumping method, wherein the fluid pumping method comprises the following steps:

[0077] (a) when the relative positions of the head cap 24 and the piston high end 2302 of the piston 23 are changed, the pumping passage 203 formed in the head cap 24 and the pump storage space 201 formed between the piston low end 2301 of the piston 23 and the pump body 21 are allowed to communicate with each other;

[0078] (b) when the head cap 24 drives the piston 23 to move toward the pump body 21 and compresses the size of the pump storage space 201, the pump outlet channel 203 is maintained in communication with the pump storage space 201, and the pump inlet channel 202 formed in the pump body 21 is prevented from being communicated with the pump storage space 201;

[0079] (c) preventing the pump-out channel 203 from communicating with the pump storage space 201 when the relative positions of the head cap 24 and the piston high end 2302 of the piston 23 are changed again; and

[0080] (d) When the head cap 24 drives the piston 23 to move in a direction away from the pump body 21 and expands the spatial size of the pump storage space 201, the non-connected state of the pump-out channel 203 and the pump storage space 201 is maintained, and the pump-in channel 202 and the pump storage space 201 are allowed to be connected.

[0081] Those skilled in the art will appreciate that the above embodiments are merely examples, and features of different embodiments may be combined with each other to obtain implementation methods that are easily conceivable based on the disclosure of the present invention but are not explicitly indicated in the drawings.

[0082] Those skilled in the art will appreciate that the embodiments of the present invention described above and shown in the accompanying drawings are intended to be illustrative only and are not intended to limit the present invention. The objectives of the present invention have been fully and effectively achieved. The functional and structural principles of the present invention have been demonstrated and illustrated in the embodiments. Any variations or modifications may be made to the embodiments of the present invention without departing from the principles described.

Claims

1. A liquid dispenser, characterized in that: The pump body comprises a ball valve, a spring, a head cap, a pump body, a piston and a connecting cover, and has a pump storage space, a pump inlet channel and a pump out channel, wherein the pump storage space is formed between the pump body and the piston, the pump inlet channel is formed in the pump body, and the pump body channel is formed in the head cap; wherein the pump body has a pump body space and a top opening connected to the pump body space, wherein the top of the pump body is mounted on the connecting cover, and the top opening of the pump body corresponds to the through-hole of the connecting cover, wherein the head cap is movably mounted on the connecting cover, wherein the piston has a piston lower end and a piston high end corresponding to the piston lower end, and the piston lower end of the piston is movably mounted on the connecting cover through the top opening of the pump body. The pump body space of the pump body forms the pump storage space between the lower end of the piston and the pump body, the high end of the piston extends to the top of the connecting cover after passing through the through hole of the connecting cover and is movably mounted on the head cap, and the pump-out channel is allowed or prevented from connecting to the pump storage space by changing the relative positions of the high end of the piston and the head cap, wherein the ball valve is movably arranged in the pump body space of the pump body to allow or prevent the pump-in channel from connecting to the pump storage space, wherein the spring is arranged between the connecting cover and the head cap in a manner of being sleeved on the high end of the piston, so as to enable the head cap to drive the piston to move in a direction away from the pump body.

2. The liquid dispenser according to claim 1 , wherein the piston comprises a piston column and a piston wall surrounding the outer side of the piston column and a piston passage formed between the piston column and the piston wall, the high end of the piston column has a flange portion which protrudes toward the piston passage; the head cap comprises a cap column and a cap body surrounding the outer side of the cap column and a head cap space formed between the cap column and the cap body, the cap column is hollow, and the middle part of the inner wall of the cap column has a recessed portion; the high end of the piston column of the piston extends into and is movably mounted on the hollow part of the cap column of the head cap, and the flange portion of the piston column can fit the inner wall of the cap column, the high end of the piston wall of the piston extends into and is movably mounted on the head cap space of the head cap, the free end of the cap column of the head cap extends into and is movably mounted on the piston passage of the piston, and at least a portion of the outer wall of the cap column fits the inner wall of the piston wall.

3. The liquid dispenser according to claim 1 , wherein the piston comprises a piston column and a piston wall surrounding the outer side of the piston column and a piston passage formed between the piston column and the piston wall, and the high end of the piston column has a recessed portion; the head cap comprises a cap column and a cap body surrounding the outer side of the cap column and a head cap space formed between the cap column and the cap body, the cap column is hollow, and the outer wall of the cap column has a flange portion that protrudes toward the cap body; the high end of the piston column of the piston extends into and is movably mounted on the hollow portion of the cap column of the head cap, and the flange portion of the cap column can fit the outer wall of the piston column, the high end of the piston wall of the piston extends into and is movably mounted on the head cap space of the head cap, the free end of the cap column of the head cap extends into and is movably mounted on the piston passage of the piston, and at least a portion of the outer wall of the cap column fits the inner wall of the piston wall.

4. The liquid dispenser according to claim 2, wherein the flange portion of the piston column is an annular flange that surrounds the entire circumference of the piston column, and wherein the recessed portion of the cap column is an annular recess that surrounds the entire circumference of the cap column.

5. The liquid dispenser according to claim 3, wherein the recessed portion of the piston column is an annular recess that surrounds the entire circumference of the piston column, and wherein the flange portion of the cap column is an annular flange that surrounds the entire circumference of the cap column.

6. A liquid dispenser according to claim 2, wherein the head cap has an installation space formed on the cap body and connected to the head cap space, wherein the high end of the piston wall of the piston forms a installation protrusion which protrudes toward the cap body of the head cap, wherein the installation protrusion of the piston wall is movably installed in the installation space of the head cap.

7. A liquid dispenser according to claim 2, wherein the head cap has an installation space, which is formed on the cap column and connected to the head cap space, wherein the high end of the piston wall of the piston forms a installation protrusion, which protrudes toward the direction of the piston column, wherein the installation protrusion of the piston wall is movably installed in the installation space of the head cap.

8. The liquid dispenser according to claim 1, wherein the pump body has a plurality of retaining arms which divide the pump body space and form a movable space at the bottom of the pump body space, wherein the ball valve is movably retained in the movable space.

9. The liquid dispenser according to claim 1, wherein the ball valve, the spring, the head cap, the pump body and the piston are all made of plastic.

10. A fluid container, characterized in that include: a container body; and A liquid dispenser, wherein the liquid dispenser is mounted on the container body, wherein the liquid dispenser further includes a ball valve, a spring, a head cap, a pump body, a piston and a connecting cover, and has a pump storage space, a pump inlet channel and a pump out channel, the pump storage space is formed between the pump body and the piston, the pump inlet channel is formed in the pump body, and the pump body channel is formed in the head cap; wherein the pump body has a pump body space and a top opening connected to the pump body space, wherein the top of the pump body is mounted on the connecting cover, and the top opening of the pump body corresponds to the through-hole of the connecting cover, wherein the head cap is movably mounted on the connecting cover, wherein the piston has a piston lower end and a piston high end corresponding to the piston lower end, the piston lower end of the piston is The top opening of the pump body is movably mounted on the pump body space of the pump body to form the pump storage space between the piston lower end of the piston and the pump body, the piston high end of the piston extends to the top of the connecting cover after passing through the through-hole of the connecting cover and is movably mounted on the head cap, allowing or preventing the pump-out channel from connecting to the pump storage space by changing the relative positions of the piston high end of the piston and the head cap, wherein the ball valve is movably arranged in the pump body space of the pump body to allow or prevent the pump-in channel from connecting to the pump storage space, wherein the spring is arranged between the connecting cover and the head cap in a manner of being sleeved on the piston high end of the piston, so as to enable the head cap to drive the piston to move in a direction away from the pump body.

11. The fluid container according to claim 10, wherein the pump body has a plurality of retaining arms which divide the pump body space and form a movable space at the bottom of the pump body space, wherein the ball valve is movably retained in the movable space.

12. The fluid container according to claim 10, wherein the piston comprises a piston column and a piston wall surrounding the outer side of the piston column and a piston passage formed between the piston column and the piston wall, the upper end of the piston column has a flange portion which protrudes toward the piston passage; the head cap comprises a cap column and a cap body surrounding the outer side of the cap column and a head cap space formed between the cap column and the cap body, the cap column is hollow, and the middle part of the inner wall of the cap column has a recessed portion; the upper end of the piston column of the piston extends into and is movably mounted on the hollow part of the cap column of the head cap, and the flange portion of the piston column can fit against the inner wall of the cap column, the upper end of the piston wall of the piston extends into and is movably mounted on the head cap space of the head cap, the free end of the cap column of the head cap extends into and is movably mounted on the piston passage of the piston, and at least a portion of the outer wall of the cap column fits against the inner wall of the piston wall.

13. The fluid container according to claim 10 , wherein the piston comprises a piston column and a piston wall surrounding the outer side of the piston column and a piston passage formed between the piston column and the piston wall, and the high end of the piston column has a recessed portion; the head cap comprises a cap column and a cap body surrounding the outer side of the cap column and a head cap space formed between the cap column and the cap body, the cap column is hollow, and the outer wall of the cap column has a flange portion that protrudes toward the cap body; the high end of the piston column of the piston extends into and is movably mounted on the hollow portion of the cap column of the head cap, and the flange portion of the cap column can fit the outer wall of the piston column, the high end of the piston wall of the piston extends into and is movably mounted on the head cap space of the head cap, the free end of the cap column of the head cap extends into and is movably mounted on the piston passage of the piston, and at least a portion of the outer wall of the cap column fits the inner wall of the piston wall.

14. A fluid container according to claim 12, wherein the head cap has an installation space formed on the cap body and connected to the head cap space, wherein the high end of the piston wall of the piston forms a installation protrusion which protrudes toward the cap body of the head cap, wherein the installation protrusion of the piston wall is movably installed in the installation space of the head cap.

15. The fluid container according to any one of claims 10 to 14, wherein the ball valve, the spring, the head cap, the pump body and the piston are all made of plastic.

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