Labor-saving single-handed pressing foam pump

Abstract

The application discloses a labor-saving shaft center one-hand pressing foam pump, which comprises a pressing assembly, a pump assembly and a shell, the pressing assembly is rotationally connected with the upper end of the shell, the lower end of the shell is connected with a bottle body, and the pump assembly is connected between the pressing assembly and the bottle body; the pressing assembly is used for being rotationally connected with the upper end of the shell to form a labor-saving lever structure which can rotate up and down and drive the pump assembly to be in one of a pumping state and an idle state. In the application, the labor-saving lever structure is formed by the pressing assembly and the shell, the pressing is more labor-saving, one-hand pressing of the user for pumping out foam is facilitated, and better pressing experience is provided for consumers.

Description

Technical Field

[0001] This invention relates to the field of cosmetics, and more particularly to a labor-saving, single-handed foam pump with a central axis. Background Technology

[0002] Most common daily chemical products on the market use pump heads for ease of use. However, the existing pump head designs are too simplistic. Users generally need to use both hands to press the pump, and due to the limited usage, users need to apply considerable force. Therefore, existing pump heads are extremely inconvenient in actual use. Summary of the Invention

[0003] In order to overcome the shortcomings of the prior art, the purpose of this invention is to provide a labor-saving foam pump that can be pressed with one hand, which can solve the problem of great inconvenience in the actual use of existing pump heads.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0005] A labor-saving, single-handedly pressable foam pump with a central axis includes a pressing assembly, a pump assembly, and a housing. The pressing assembly is rotatably connected to the upper end of the housing, and a bottle is connected to the lower end of the housing. The pump assembly is connected between the pressing assembly and the bottle. The pressing assembly is used to rotatably connect to the upper end of the housing to form a labor-saving lever structure that can rotate up and down, driving the pump assembly to either a pumping state or an idle state.

[0006] Preferably, the pressing assembly includes a nozzle, an upper pressure cap, and a lower pressure cap. The lower pressure cap is rotatably connected to the upper end of the outer shell. The upper end of the lower pressure cap is connected to the upper pressure cap. The upper pressure cap is provided with a liquid outlet channel. The output end of the liquid outlet channel is connected to the nozzle, and the input end of the liquid outlet channel is connected to the pump assembly.

[0007] Preferably, the upper end of the outer shell has an opening below the nozzle, and the inner end of the outer shell away from the opening is connected to a support column, and the lower pressure cover is rotatably connected to the support column.

[0008] Preferably, the inlet end of the liquid outlet channel is connected to a telescopic hose, the inlet end of the telescopic hose is connected to an upper pull rod, the upper pull rod is provided with a mesh screen, and the lower end of the upper pull rod is connected to a pump assembly.

[0009] Preferably, the pump assembly includes a large hammer, a grinding cylinder, a pull rod, a grinding seat, and a reset device. The large hammer is disposed on the central axis of the grinding cylinder, and its upper end is connected to the lower end of the pull rod. The edge of the lower end of the large hammer extends towards the grinding cylinder to form a closed portion, which is sealed to the inner wall of the grinding cylinder. The lower end of the grinding cylinder extends towards the bottle body to form a suction chamber, and the grinding seat is disposed in the suction chamber. The lower end of the reset device is sleeved on the outside of the grinding seat. The pull rod is disposed between the large hammer and the grinding seat, and its lower end extends towards the grinding seat to form an extension portion, which passes through the reset device and is movably connected to the grinding seat.

[0010] Preferably, it further includes a thin paddle, which is sleeved on the pull rod. The large paddle has a first contact portion and a second contact portion inside. The first contact portion and the second contact portion are arranged in a stepped shape. The diameter of the first contact portion is larger than the diameter of the second contact portion. The first contact portion abuts against the upper end of the thin paddle. The second contact portion is correspondingly arranged against the upper end of the pull rod. The lower end of the thin paddle abuts against the upper end of the reset device. The middle part of the thin paddle extends towards the friction cylinder to form a baffle. A blade is connected between the baffle and the first contact portion.

[0011] Preferably, the lower end of the extension is provided with a protrusion, and the piston seat is provided with a locking position that matches the protrusion, and the extension can slide movably within the piston.

[0012] Preferably, the reset device is a spring.

[0013] Preferably, a pipette is connected to the lower end of the suction chamber.

[0014] Preferably, a glass bead is provided at the junction of the suction chamber and the pipette.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: by forming a force-saving lever structure with the pressing component and the outer shell, the user can press the pump component with less effort, making it easier for the user to press and pump out foam with one hand, and giving consumers a better pressing experience. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the labor-saving, single-handed pressing foam pump with a central axis described in this invention.

[0017] Figure 2 This is a schematic diagram of the pump assembly described in this invention.

[0018] Figure 3 This is a schematic diagram of the outer shell described in this invention.

[0019] In the diagram: 1-Pressing assembly; 11-Nozzle; 12-Upper cap; 13-Lower cap; 14-Dispensing channel; 15-Telescopic hose; 16-Upper pull rod; 17-Mortar mesh; 2-Pump assembly; 21-Large beater; 22-Mortar cylinder; 23-Lower pull rod; 24-Mortar seat; 25-Reset device; 26-Fine beater; 27-Blade; 28-Suction tube; 29-Glass bead; 3-Outer shell; 31-Opening; 32-Support column; 4-Bottle body. Detailed Implementation

[0020] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0021] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0023] The present invention will now be further described with reference to the accompanying drawings and specific embodiments:

[0024] like Figure 1-3 As shown, in this invention, a labor-saving, single-handed foam pump with a central axis includes a pressing component 1, a pump component 2, and a housing 3. The pressing component 1 is rotatably connected to the upper end of the housing 3, and a bottle body 4 is connected to the lower end of the housing 3. The pump component 2 is connected between the pressing component 1 and the bottle body 4. The pressing component 1 is used to rotatably connect to the upper end of the housing 3, forming a labor-saving lever structure that can rotate up and down, driving the pump component 2 to either a pumping state or an idle state. In this embodiment, by forming a labor-saving lever structure with the housing 3, the user can press the pump component 2 with less effort, making it easier for the user to pump out foam with one hand, providing consumers with a better pressing experience.

[0025] Preferably, the pressing assembly 1 includes a nozzle 11, an upper pressure cap 12, and a lower pressure cap 13. The lower pressure cap 13 is rotatably connected to the upper end of the outer casing 3. The upper end of the lower pressure cap 13 is connected to the upper pressure cap 12. The upper pressure cap 12 is provided with a liquid outlet channel 14. The output end of the liquid outlet channel 14 is connected to the nozzle 11, and the input end of the liquid outlet channel 14 is connected to the pump assembly 2. Further, an opening 31 is provided on the upper end of the outer casing 3 below the nozzle 11. A support column 32 is connected to the end of the outer casing 3 away from the opening 31. The lower pressure cap 13 is rotatably connected to the support column 32. In this embodiment, the outer shell 3 has a hollow structure. The upper end has an upper locking position that matches the pressing component 1, and the lower end has a lower locking position that mounts the bottle body 4. The upper locking position communicates with the lower locking position through the interior of the outer shell 3. A support rod is located on one side inside the outer shell 3 (or it can be located in the upper locking position). The other side of the outer shell 3 has an opening 31. The nozzle 11 is located directly above the opening 31 and connected to the upper pressure cap 12, communicating with the output end of the liquid outlet channel 14. When the user presses the button, the nozzle 11, the upper pressure cap 12, and the lower pressure cap 13 all rotate downwards around the connection point between the lower pressure cap 13 and the support column 32. The outwardly protruding nozzle 11 enters the opening 31, avoiding interference with the upper edge of the outer shell 3 and effectively increasing the downward rotation range of the pressing component 1, thereby meeting the user's demand for foam pump output.

[0026] Preferably, the input end of the liquid outlet channel 14 is connected to a telescopic hose 15, the input end of the telescopic hose 15 is connected to an upper pull rod 16, a mesh screen 17 is provided in the upper pull rod 16, and the lower end of the upper pull rod 16 is connected to the pump assembly 2. In this embodiment, by providing a telescopic hose 15 between the liquid outlet channel 14 and the upper pull rod 16, the displacement and angle differences generated during pressing and resetting are buffered. At the same time, the mesh screen 17 is provided in the upper pull rod 16, and the liquid pumped by the pump assembly 2 foams in the mesh screen 17 to form foam, which is then output to the outside through the telescopic hose 15, the liquid outlet channel 14, and the nozzle 11.

[0027] Preferably, the pump assembly 2 includes a large lever 21, a grinding cylinder 22, a pull rod 23, a grinding seat 24, and a reset device 25. The large lever 21 is disposed on the central axis of the grinding cylinder 22. The upper end of the large lever 21 is connected to the lower end of the upper pull rod 16. The lower edge of the large lever 21 extends towards the grinding cylinder 22 to form a closed part. The closed part is sealed to the inner wall of the grinding cylinder 22. The lower end of the grinding cylinder 22 extends towards the bottle body 4 to form a suction chamber. The diameter of the grinding cylinder 22 gradually decreases from the pressing assembly 1 towards the suction chamber. The grinding seat 24 is disposed in the suction chamber. The lower end of the reset device 25 is sleeved on the outside of the grinding seat 24. The pull rod 23 is disposed between the large lever 21 and the grinding seat 24. The lower end of the pull rod 23 extends towards the grinding seat 24 to form an extension part. The extension part passes through the reset device 25 and is movably connected to the grinding seat 24. In this embodiment, the large paddle 21 and the upper pull rod 16 are connected by a snap-fit. When pressed, the pressing assembly 1 drives the large paddle 21 downward through the upper pull rod 16. The sealing part moves downward synchronously with the large paddle 21. Since the sealing part is sealed to the inner wall of the friction cylinder 22, the inside of the friction cylinder 22 is compressed when pressed, and a large pressure is formed inside the friction cylinder 22. The air inside the friction cylinder 22 is squeezed out. At the same time, the lower pull rod 23 moves downward under the drive of the large paddle 21. Preferably, a thin paddle 26 is also included. The thin paddle 26 is sleeved on the lower pull rod 23. The large paddle 21 is provided with a first contact part and a second contact part. The first contact part and the second contact part are arranged in a stepped shape. The diameter of the first contact part is larger than the diameter of the second contact part. The first contact part abuts against the upper end of the thin paddle 26, and the second contact part is correspondingly arranged with the upper end of the pull rod. The thin paddle 26... The lower end abuts against the upper end of the reset device 25. The middle part of the fine paddle 26 extends towards the friction cylinder 22 to form a baffle. A blade 27 is connected between the baffle and the first contact part. The blade 27 is made of flexible material. In the idle state, the first contact part abuts against the upper end of the fine paddle 26, and the second contact part is separated from the pull rod. The upper end of the fine paddle 26 and the upper end of the pull rod 23 are sealed together. The fine paddle 26, the pull rod 23 and the large paddle 21 form a closed space. When the large paddle 21 moves downward, the fine paddle 26 first follows the large paddle 21 downward for a certain distance. The blade 27 separates from the baffle. The air inside the friction cylinder 22 opens the blade 27. It passes through the bone gap between the large paddle 21 and the fine paddle 26, passes through the friction mesh 17 and the liquid outlet channel 14 and is output to the outside. Then the pull rod 23 contacts the second contact part and the pull rod 23 begins to move downward with the large paddle 21.Preferably, the lower end of the extension is provided with a protrusion, and the friction seat 24 is provided with a locking position that matches the protrusion. The extension can slide movably within the piston so that the pull rod 23 can accurately reciprocate along the central axis of the friction cylinder 22, improving the pumping efficiency. When the user removes the pressure applied to the pressing assembly 1, the reset device 25 releases the potential energy stored during pressing and begins to reset. Preferably, the reset device 25 is a spring that provides a force to the thin paddle 26 to move towards the pressing assembly 1, so that the thin paddle 26 and the pull rod 23 first form a sealing fit, while simultaneously driving the large paddle 21 to move upward, causing a negative pressure to be generated inside the friction cylinder 22, resulting in a gap between the inside of the friction cylinder 22 and the inside of the bottle body 4. A pressure difference is created, thereby drawing the liquid in the bottle 4 into the suction chamber through the straw 28 connected to the lower end of the suction chamber. Preferably, a glass bead 29 is provided at the junction of the suction chamber and the straw 28. When pressed, the glass bead 29 is pressed against the junction of the suction chamber and the straw 28 by the pressure inside the friction cylinder 22, thus cutting off the connection between the suction chamber and the straw 28 and preventing liquid or air from flowing back into the bottle 4. When reset, a negative pressure is generated inside the friction cylinder 22. The pressure difference between the inside of the friction cylinder 22 and the inside of the bottle 4 causes the glass bead 29 to move towards the pressing component 1, so that the suction chamber and the straw 28 are connected, realizing one-way flow from the bottle 4 to the friction cylinder 22 to the friction mesh 17 to the liquid outlet channel 14 to the outside.

[0028] In this embodiment, the user presses the pressing component 1, which drives the large paddle 21 towards the bottle body 4 via the upper pull rod 16, compressing the internal space of the grinding cylinder 22. This creates significant pressure inside the grinding cylinder 22. Under this pressure, the glass beads 29 press against the junction of the suction chamber and the suction tube 28, effectively cutting off the connection between them. As the large paddle 21 moves downwards, the thin paddle 26 follows it downwards for a certain distance. The air inside the grinding cylinder 22 opens the blades 27, passing through the gap between the large paddle 21 and the thin paddle 26, and then through the grinding mesh 17 and the liquid outlet channel 14. Outputting to the outside, the pull rod 23 then begins to move downwards following the large paddle 21. When the user removes the pressure applied to the pressing assembly 1, the reset device 25 releases the potential energy stored during pressing and begins to reset. The reset device 25 provides a force to the thin paddle 26 to move towards the pressing assembly 1, causing the thin paddle 26 and the pull rod 23 to first form a sealed fit, while simultaneously driving the large paddle 21 to move upwards, creating a negative pressure inside the friction cylinder 22. This results in a pressure difference between the inside of the friction cylinder 22 and the inside of the bottle body 4, causing the glass bead 29 to move towards the pressing assembly 1, thus connecting the suction chamber and the suction tube 28. Under the influence of the pressure difference between the inside of the cylinder 22 and the inside of the bottle 4, the liquid inside the bottle 4 is drawn into the suction chamber. At the same time, the external pressure is greater than the air pressure inside the cylinder 22 and the air pressure inside the bottle. Therefore, during the reset process, the outside air passes through the gap between the pressing component 1, the outer shell 3 and the large hammer 21, causing the outer blade of the blade 27 to open and enter the upper space of the cylinder 22 to maintain air pressure balance. Another part enters the bottle through the small hole on the side of the cylinder 22 to maintain the pressure inside the bottle is the same as the outside. Pressing the pressing component 1 again drives the large hammer 21 towards the bottle 4 through the upper pull rod 16, compressing the inside of the cylinder 22. In the internal space, a large pressure is formed inside the grinding cylinder 22. Under the action of the pressure inside the grinding cylinder 22, the glass beads 29 press against the junction of the liquid suction chamber and the suction tube 28, thus cutting off the connection between the liquid suction chamber and the suction tube 28. When the large hammer 21 moves downward, the thin hammer 26 moves downward with the large hammer 21 for a certain distance. The liquid in the liquid suction chamber will mix with the air discharged from the inner blade of the blade 27 inside the grinding cylinder 22 through the channel formed by the top of the pull rod 23 and the thin hammer 26. Then, they will be foamed together through the grinding mesh 17 and finally discharged into the external space through the upper pull rod 16, the telescopic hose 15, and the liquid outlet channel 14.

[0029] For those skilled in the art, various other corresponding changes and modifications can be made based on the technical solutions and concepts described above, and all such changes and modifications should fall within the protection scope of the claims of this invention.

Claims

1. A labor-saving, single-handedly operated foam pump with a central shaft, characterized in that: The device includes a pressing assembly, a pump assembly, and a housing. The pressing assembly is rotatably connected to the upper end of the housing, and a bottle is connected to the lower end of the housing. The pump assembly is connected between the pressing assembly and the bottle. The pressing assembly is used to rotatably connect to the upper end of the housing to form a lever structure that can rotate up and down, driving the pump assembly to either a pumping state or an idle state. The pressing assembly includes a nozzle, an upper pressure cap, and a lower pressure cap. The lower pressure cap is rotatably connected to the upper end of the outer shell. The upper end of the lower pressure cap is connected to the upper pressure cap. The upper pressure cap is provided with a liquid outlet channel. The output end of the liquid outlet channel is connected to the nozzle, and the input end of the liquid outlet channel is connected to the pump assembly. An opening is provided at the upper end of the outer shell below the nozzle, and a support column is connected to the end of the outer shell away from the opening. The lower pressure cover is rotatably connected to the support column.

2. The foam pump with a labor-saving shaft and single-hand pressing as described in claim 1, characterized in that: The inlet end of the liquid outlet channel is connected to a telescopic hose, the inlet end of the telescopic hose is connected to an upper pull rod, the upper pull rod is provided with a mesh screen, and the lower end of the upper pull rod is connected to the pump assembly.

3. The foam pump with a labor-saving shaft and single-hand pressing as described in claim 2, characterized in that: The pump assembly includes a large hammer, a grinding cylinder, a pull rod, a grinding seat, and a reset device. The large hammer is positioned on the central axis of the grinding cylinder, and its upper end is connected to the lower end of the pull rod. The lower edge of the large hammer extends towards the grinding cylinder to form a closed portion, which seals against the inner wall of the grinding cylinder. The lower end of the grinding cylinder extends towards the bottle body to form a suction chamber, and the grinding seat is positioned within the suction chamber. The lower end of the reset device is sleeved on the outside of the grinding seat. The pull rod is positioned between the large hammer and the grinding seat, and its lower end extends towards the grinding seat to form an extension portion, which passes through the reset device and is movably connected to the grinding seat.

4. The effort-saving, single-handed pressing foam pump with a central axis as described in claim 3, characterized in that: It also includes a thin paddle, which is sleeved on the pull rod. The large paddle has a first contact portion and a second contact portion inside. The first contact portion and the second contact portion are arranged in a stepped shape. The diameter of the first contact portion is larger than the diameter of the second contact portion. The first contact portion abuts against the upper end of the thin paddle. The second contact portion is arranged correspondingly to the upper end of the pull rod. The lower end of the thin paddle abuts against the upper end of the reset device. The middle part of the thin paddle extends towards the friction cylinder to form a baffle. A blade is connected between the baffle and the first contact portion.

5. The effort-saving, single-handed pressing foam pump with a central axis as described in claim 3, characterized in that: The lower end of the extension portion is provided with a protrusion, and the base is provided with a locking slot that matches the protrusion. The extension portion is movable. The ground slides inside the piston.

6. The foam pump with a labor-saving shaft and single-hand pressing as described in claim 3, characterized in that: The reset device is a spring.

7. The effort-saving, single-handed pressing foam pump with a central axis as described in claim 3, characterized in that: A suction tube is connected to the lower end of the suction chamber.

8. The effort-saving, single-handed pressing foam pump with a central shaft as described in claim 7, characterized in that: A glass bead is provided at the junction of the suction chamber and the suction tube.

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