Foam pump

Abstract

The embodiment of the utility model provides a foam pump. The foam pump comprises a pressing head part; the liquid outlet part is connected to the pressing head part and is used for outputting foam; the pump body part is movably connected to the pressing head part; wherein the liquid outlet part comprises a liquid outlet cover and a liquid outlet plate, the liquid outlet cover is connected with the side part of the pressing head part, the liquid outlet cover covers the liquid outlet plate, the liquid outlet plate, the liquid outlet cover and the pressing head part are sequentially communicated, the liquid outlet cover is arranged in a heart shape, the liquid outlet plate is provided with a plurality of liquid outlet holes, and the liquid outlet holes are used for outputting foam. According to the technical scheme, the foam pump can output foams in different shapes through the arrangement of the liquid outlet holes, and the liquid outlet cover is arranged in a heart shape, so that the interestingness and the ornamental value of the foam pump are increased.

Description

Technical Field

[0001] This application relates to the field of pump technology, and more particularly to a foam pump. Background Technology

[0002] Currently, many daily necessities and cosmetics on the market have pump dispensers on the top of their bottles for ease of use, allowing users to quickly obtain the desired liquid or foam by pressing the pump. However, most containers with pump dispensers currently only have a single round or strip-shaped outlet, unable to dispense other shapes of foam, resulting in a lack of product appeal.

[0003] It should be noted that the above content is not necessarily prior art, nor is it intended to limit the scope of patent protection of this application. Summary of the Invention

[0004] This application provides a foam pump to solve or alleviate one or more of the technical problems mentioned above.

[0005] As one aspect of the embodiments of this application, this application provides a foam pump, including:

[0006] Press on the head;

[0007] A liquid outlet section is connected to the press head, and the liquid outlet section is used to output foam;

[0008] The pump body is movably connected to the press head;

[0009] The liquid outlet section includes:

[0010] The liquid outlet cover and the liquid outlet plate are connected to the side of the massage head. The liquid outlet cover is closed on the liquid outlet plate. The liquid outlet plate, the liquid outlet cover and the massage head are connected in sequence. The liquid outlet cover is heart-shaped. The liquid outlet plate is provided with a plurality of liquid outlet holes for discharging foam.

[0011] Optionally, the top of the liquid outlet plate is provided with a convex groove, and the bottom of the liquid outlet plate is provided with a plurality of diversion plates, wherein the plurality of diversion plates and the liquid outlet plate form a plurality of liquid outlet holes, and the plurality of liquid outlet holes are connected to the convex groove.

[0012] Optionally, the press head includes a nozzle, the bottom of the liquid outlet cover is provided with a receiving part, the receiving part corresponds to the position and shape of the convex groove, the liquid outlet cover is provided with a connecting block, the connecting block is hollow and is inserted into the nozzle, and the connecting block communicates with the receiving part.

[0013] Optionally, the liquid outlet cover includes a left half and a right half, wherein the first end of the left half and the first end of the right half are connected to form an inwardly recessed area of ​​the liquid outlet cover; and the second end of the left half and the second end of the right half are connected to form a protruding area of ​​the liquid outlet cover.

[0014] Optionally, the inwardly recessed area of ​​the liquid outlet cap is connected to the nozzle via the connecting block, and the protruding area of ​​the liquid outlet cap is oriented away from the connecting block.

[0015] Optionally, the convex groove includes a first convex groove and a second convex groove, the first convex groove corresponds to the left half, the second convex groove corresponds to the right half, the first end of the first convex groove corresponds to the first end of the left half, the first end of the second convex groove corresponds to the first end of the right half, the second end of the first convex groove corresponds to the second end of the left half, the second end of the second convex groove corresponds to the second end of the right half, and the second end of the first convex groove and the end of the second convex groove are connected.

[0016] Optionally, the plurality of liquid outlet holes are two liquid outlet holes, the first ends of the two liquid outlet holes correspond to the first ends of the first convex groove and the first ends of the second convex groove, respectively, the second ends of the two liquid outlet holes correspond to the second ends of the first convex groove and the second ends of the second convex groove, respectively, the second ends of the two liquid outlet holes are connected, and each of the second ends of the two liquid outlet holes is provided with a cylindrical hole.

[0017] Optionally, the first end of the liquid outlet plate is arranged in an arc shape toward its second end, and the second end of the liquid outlet plate is arranged in a cylindrical shape.

[0018] Optionally, the cross-sectional area of ​​the second end of the liquid outlet is greater than the cross-sectional area of ​​the first end of the liquid outlet.

[0019] Optionally, the foam pump further includes: a cylinder, a first movable component, a second movable component, blades, a tie rod, a base, and an elastic element;

[0020] One end of the cylindrical part is fitted inside the pump body part;

[0021] One end of the first movable component is slidably sleeved inside the cylindrical part, and the other end of the first movable component is movably disposed inside the pump body part;

[0022] One end of the second movable component is slidably fitted inside one end of the first movable component, and the other end of the second movable component is slidably fitted inside the cylindrical part;

[0023] The blade is disposed between the first movable component and the second movable component. The first movable component is provided with an air inlet. The contact and separation between the blade and the first movable component control the opening and closing of the air inlet.

[0024] One end of the pull rod is slidably sleeved in the second movable component, one end of the base is slidably sleeved in the cylindrical part, the other end of the pull rod is slidably connected to the other end of the base, the bottom of the base is placed at the bottom of the cylindrical part, and the elastic element is sleeved on the pull rod and the base;

[0025] A gas storage chamber is formed between the first movable component, the blade, the second movable component, and the cylinder portion; a liquid storage chamber is formed between the second movable component, the pull rod, and the cylinder portion; a mixing chamber is provided between the other end of the first movable component and the second movable component; the mixing chamber is connected to the liquid storage chamber and the nozzle.

[0026] The contact and separation between the blade and the second movable component controls the connection and separation between the gas storage chamber and the mixing chamber.

[0027] The embodiments of this application employing the above-described technical solution may have the following advantages:

[0028] The technical solution of this application embodiment can enable the foam pump to output foam of different shapes by setting a number of liquid outlet holes, and the liquid outlet cover is set in a heart shape, which increases the fun and visual appeal of the foam pump. Attached Figure Description

[0029] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the various drawings denote the same or similar parts or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings depict only some embodiments disclosed in this application and should not be construed as limiting the scope of this application.

[0030] Figure 1 This is an exploded view of the overall structure of the foam pump provided in this application embodiment;

[0031] Figure 2 This is a partial structural diagram of the outlet section of the foam pump provided in an embodiment of this application;

[0032] Figure 3 This is an exploded view of the overall structure of the foam pump provided in this application embodiment;

[0033] Figure 4 This is a partial structural schematic diagram of the foam pump provided in an embodiment of this application.

[0034] Explanation of reference numerals in the attached drawings: 1. Liquid outlet; 10. Liquid outlet cover; 101. Left half; 102. Right half; 11. Liquid outlet plate; 111. Protrusion; 12. Liquid guide plate; 13. Connecting block; 14. Receiving part; 15. Convex groove; 151. First convex groove; 152. Second convex groove; 16. Diverter plate; 17. Liquid outlet hole; 18. Cylindrical hole; 2. Pump body; 3. Pump head; 31. Nozzle; 20. Cylinder body; 200. Upper cylinder; 201. Flanged edge; 202. Gasket; 210. Lower cylinder; 211. Through hole; 212. Suction tube; 220. Liquid storage chamber; 230. Gas storage chamber; 240. Gas delivery channel; 250. Glass bead; 30. First movable component; 300. Air inlet; 310. Mixing chamber; 40. Second movable component; 50. Blade; 500. Blade body; 510. First blade; 520. Second blade; 60. Pull rod; 70. Screen; 80. Base; 90. Elastic component; 100. Buckle. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other. The application will now be described in detail with reference to the accompanying drawings and embodiments.

[0036] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0037] To facilitate understanding of the technical solutions provided in the embodiments of this application by those skilled in the art, the relevant technologies are described below:

[0038] Currently, many everyday consumer goods and cosmetics on the market have a pump dispenser on the top of the bottle for ease of use, allowing users to quickly obtain the desired liquid or foam by pressing the pump. However, most containers with pump dispensers on the market currently only have a single outlet and cannot dispense other shapes of foam, resulting in a lack of product appeal.

[0039] Therefore, this application provides a foam pump capable of generating a large amount of foam, and the foam pump is also quite interesting. See below for details.

[0040] Exemplary embodiments according to this application will now be described in more detail with reference to the accompanying drawings. It should be understood that these exemplary embodiments may be implemented in many different forms and should not be construed as being limited to the embodiments set forth herein.

[0041] like Figures 1-4 As shown, the foam pump may include: a head 3, a liquid outlet 1, and a pump body 2; the liquid outlet 1 is connected to the head 3 and is used to output foam; the pump body 2 is movably connected to the head 3; wherein, the liquid outlet 1 includes: a liquid outlet cover 10 and a liquid outlet plate 11, the liquid outlet cover 10 is connected to the side of the head 3, the liquid outlet cover 10 covers the liquid outlet plate 11, the liquid outlet plate 11, the liquid outlet cover 10, and the head 3 are sequentially connected, the liquid outlet cover 10 is heart-shaped, and the liquid outlet plate 11 is provided with a plurality of liquid outlet holes 17 for outputting foam. In this application, the arrangement of a plurality of liquid outlet holes 17 enables the foam pump to output foam of different shapes, and the heart-shaped arrangement of the liquid outlet cover 10 increases the fun and visual appeal of the foam pump.

[0042] In an optional embodiment, a convex groove 15 is provided on the top of the liquid outlet plate 11, and a plurality of diverter plates 16 are provided on the bottom of the liquid outlet plate 11. A plurality of liquid outlet holes 17 are formed between the plurality of diverter plates 16 and the liquid outlet plate 11, and the plurality of liquid outlet holes 17 communicate with the convex groove 15. In this embodiment, the connection between the diverter plates 16 and the liquid outlet holes 17 allows the foam to be output in the desired shape along the liquid outlet holes 17 under the guidance of the diverter plates 16, so that the shape of the foam pump can be flexibly set as needed.

[0043] In an optional embodiment, the head 3 includes a nozzle 31, and the bottom of the liquid outlet cap 10 is provided with a receiving portion 14. The receiving portion 14 corresponds in position and shape to the convex groove 15. The liquid outlet cap 10 is provided with a connecting block 13, which is hollow and inserted into the nozzle 31. The connecting block 13 communicates with the receiving portion 14. In this embodiment, the position, shape, and size of the receiving portion 14 and the convex groove 15 correspond one-to-one, so that the foam conveyed by the nozzle 31 through the connecting block 13 can first be received in the receiving portion 14 and gradually enter the convex groove 15, without overflowing into other positions of the liquid outlet cap 10 or the liquid outlet plate 11, thus avoiding waste of foam during the conveying process.

[0044] In an optional embodiment, the liquid outlet cap 10 includes a left half 101 and a right half 102. The first end of the left half 101 and the first end of the right half 102 are connected to form an inwardly recessed area of ​​the liquid outlet cap 10; the second end of the left half 101 and the second end of the right half 102 are connected to form a protruding area of ​​the liquid outlet cap 10. In this application, the liquid outlet cap 10 is conventionally heart-shaped, increasing the aesthetic appeal and interest of the foam pump.

[0045] In an optional embodiment, the inwardly recessed area of ​​the liquid outlet cap 10 is connected to the nozzle 31 via a connecting block 13, and the protruding area of ​​the liquid outlet cap 10 is oriented away from the connecting block 13. In this application, the connection range between the nozzle 31 and the inwardly recessed area of ​​the liquid outlet cap 10 is relatively large, which helps to enhance the connection strength between the liquid outlet cap 10 and the press head 3.

[0046] In an optional embodiment, the convex groove 15 includes a first convex groove 151 and a second convex groove 152. The first convex groove 151 corresponds to the left half 101, and the second convex groove 152 corresponds to the right half 102. The first end of the first convex groove 151 corresponds to the first end of the left half 101, and the first end of the second convex groove 152 corresponds to the first end of the right half 102. The second end of the first convex groove 151 corresponds to the second end of the left half 101, and the second end of the second convex groove 152 corresponds to the second end of the right half 102. The second end of the first convex groove 151 and the end of the second convex groove 152 are connected. In this application, the first ends of the first convex groove 151 and the second convex groove 152 are independent of each other and are not directly connected. The convex groove 15 is heart-shaped.

[0047] In an optional embodiment, the plurality of liquid outlet holes 17 are divided into two liquid outlet holes 17. The first ends of the two liquid outlet holes 17 correspond to the first ends of the first protrusion 151 and the second protrusion 152, respectively. The second ends of the two liquid outlet holes 17 correspond to the second ends of the first protrusion 151 and the second protrusion 152, respectively. The second ends of the two liquid outlet holes 17 are connected, and each second end of the two liquid outlet holes 17 is provided with a cylindrical through hole 211 or cylindrical hole 18. In this application, the two liquid outlet holes 17 form a heart shape, enabling the foam pump to output heart-shaped foam, increasing the fun of the foam pump.

[0048] In an optional embodiment, the first end of the liquid outlet plate 11 is arranged in an arc shape towards its second end, and the second end of the liquid outlet plate 11 is arranged in a cylindrical shape. The cross-sectional area of ​​the second end of the liquid outlet hole 17 is larger than the cross-sectional area of ​​the first end of the liquid outlet hole 17. In this application, due to the above-mentioned arrangement of the second end of the liquid outlet hole 17, the amount of foam output from the second end of the liquid outlet hole 17 is greater than the amount of foam output from the first end of the liquid outlet hole 17, thereby making the foam output from the liquid outlet hole 17 more inclined to form a "heart" shape.

[0049] Combination Figure 3 In an optional embodiment, the foam pump further includes: a cylinder portion 20, a first movable component 30, a second movable component 40, a blade 50, a pull rod 60, a base 80, and an elastic element 90; one end of the cylinder portion 20 is sleeved inside the pump body portion 2; one end of the first movable component 30 is slidably sleeved inside the cylinder portion 20, and the other end of the first movable component 30 is movably disposed inside the pump body portion 2; one end of the second movable component 40 is slidably sleeved inside one end of the first movable component 30, and the other end of the second movable component 40 is slidably sleeved inside the cylinder portion 20; the blade 50 is disposed between the first movable component 30 and the second movable component 40, the first movable component 30 is provided with an air inlet 300, and the contact and separation between the blade 50 and the first movable component 30 controls the opening and closing of the air inlet 300; the pull rod 60... One end of the base 80 is slidably fitted inside the second movable component 40, and one end of the base 80 is slidably fitted inside the cylindrical part 20. The other end of the pull rod 60 is slidably connected to the other end of the base 80. The bottom of the base 80 is placed at the bottom of the cylindrical part 20. The elastic element 90 is fitted on the pull rod 60 and the base 80. A gas storage chamber 230 is formed between the first movable component 30, the blade 50, the second movable component 40 and the cylindrical part 20. A liquid storage chamber 220 is formed between the second movable component, the pull rod 60 and the cylindrical part 20. A mixing chamber 310 is provided between the other end of the first movable component 30 and the second movable component 40. The mixing chamber 310 connects the liquid storage chamber 220 and the nozzle 31. The blade 50 abuts against and separates from the second movable component 40 to control the connection and separation between the gas storage chamber 230 and the mixing chamber 310. In this embodiment, through the mutual movement between the first movable part, the second movable part, the blade 50, the pull rod 60 and the cylinder body, when the press head 3 is pressed, the liquid in the liquid storage chamber 220 is output into the mixing chamber 310 because the volume of the liquid storage chamber 220 decreases. At the same time, the sealing position between the blade 50 and the second movable component 40 is opened, and the gas enters the mixing chamber 310 from the gas storage chamber 230 and mixes with the liquid in the mixing chamber 310 to form foam, which is then pumped out through the nozzle 31, resulting in good sealing.

[0050] In an optional embodiment, the cylinder portion 20 includes an upper cylinder 200 and a lower cylinder 210, with the upper cylinder 200 connected to the lower cylinder 210. The upper cylinder 200 can be connected to the pump body portion 2 by means of threaded connection, snap-fit ​​connection, or fastening connection. The top of the upper cylinder 200 includes a flange 201. A gasket 202 is provided at the connection between the flange 201 of the upper cylinder 200 and the pump body portion 2.

[0051] In an optional embodiment, one end of the first movable component 30 is fitted inside the upper cylinder 200, and the inner wall of the first movable component 30 abuts against the inner wall of the upper cylinder 200. The first movable component 30 slides along the axial direction of the upper cylinder 200. One end of the second movable component 40 is fitted inside the lower cylinder 210, and the other end of the second movable component 40 is slidably fitted onto the other end of the first movable component 30. The second movable component 40 slides along the axial direction of the lower cylinder 210. A through hole 211 is provided at the bottom of the lower cylinder 210. The foam pump also includes a sealing element, which is disposed at the bottom of the lower cylinder 210 and abuts against the through hole 211. The sealing element can be a glass bead 250. When the glass bead 250 abuts against the through hole 211, the liquid storage chamber 220 remains sealed.

[0052] The bottom of the lower cylinder 210 is connected to a straw 212, which is connected to a through hole 211 to draw liquid.

[0053] In an optional embodiment, a gas delivery channel 240 is provided between the first active component 30 and the second active component 40. One end of the gas delivery channel 240 can be connected to the gas chamber, and the other end of the gas delivery channel 240 is connected to the mixing chamber 310.

[0054] In an optional embodiment, the blade 50 includes a blade body 500, a first blade 510, and a second blade 520. Both the first blade 510 and the second blade 520 are connected to the blade body 500 and are located on opposite sides of the blade body 500. The first movable component 30 is provided with an air inlet 300. The blade body 500 is connected to the first movable component 30. The second blade 520 is located between the second movable component 40 and the blade body 500. The second blade 520 can abut against the second movable component 40 to prevent gas in the gas storage chamber 230 from being delivered to the gas delivery channel 240. The second blade 520 can also disengage from the second movable component 40 to allow gas in the gas storage chamber 230 to be delivered to the mixing chamber 310 through the gas delivery channel 240. The abutment point between the second blade 520 and the second movable component 40 serves as the working sealing position of the gas storage chamber 230. The first sheet 510 can abut against the first movable component 30 to block the air inlet 300, and the first sheet 510 can disengage from the first movable component 30 to open the air inlet 300. When the air storage chamber 230 of the foam pump needs to store air, the first sheet 510 disengages from the first movable component 30 to open the air inlet 300; when the first sheet 510 is in contact with the first movable component 30 and blocks the air inlet 300, the air storage chamber 230 of the foam pump is in a relatively sealed state. In this embodiment, both the first sheet 510 and the second sheet 520 are soft sheets or elastic sheets.

[0055] In an optional embodiment, the elastic element 90 may be configured as a spring. One end of the spring abuts against the second movable component 40, and the other end of the spring abuts against the base 80.

[0056] In an optional embodiment, the foam pump further includes a screen 70 disposed within the pump body 2, and the screen 70 is partially connected to the push head 3, with the first movable component 30 slidably connected to the screen 70.

[0057] In an optional embodiment, a buckle 100 is also connected to the outer wall of the connection between the press head 3 and the pump body 2. The upper end of the buckle 100 abuts against the press head 3, and the lower end of the buckle 100 abuts against the outer wall of the pump body 2 to prevent the press head 3 from being pressed so that the nozzle 31 sprays out foam.

[0058] Specific work process:

[0059] The user presses down on the head 3, causing the first movable component 30, the second movable component 40, and the blade 50 to slide towards the straw 212. At this time, the volume of the liquid storage chamber 220 and the gas storage chamber 230 decreases, and the pressure increases. The first blade 510 and the first movable component 30 remain in contact to block the air inlet 300. The second blade 520 and the second movable component 40 disengage, meaning that the working seal of the second blade 520 and the second movable component 40 is opened. The gas in the gas storage chamber 230 enters the mixing chamber 310 through the gas delivery channel 240. The elastic element 90 is squeezed. At this time, the base 80 presses against the glass bead 250, and the glass bead 250 presses against the through hole 211. The pressure in the liquid storage chamber 220 increases, and the liquid in the liquid storage chamber 220 is forced into the mixing chamber 310. The gas and liquid entering the mixing chamber 310 mix to form foam, which is then sprayed out from the nozzle 31 through the screen.

[0060] When the user releases the pressure head 3, the elastic element 90 releases its elastic potential energy, causing the pressure head 3 to rebound upwards. The volume of the air chamber 230 and the liquid chamber 220 increases, and the pressure decreases. The second piece 520 re-engages with the second movable component 40, preventing liquid from flowing back into the air chamber 230. The pressure inside the air chamber 230 is lower than the external air pressure. The first piece 510 disengages from the first movable component 30, and the air inlet 300 is opened, allowing external air to enter the air chamber 230. The elastic element 90 extends, reducing the pressure inside the liquid chamber 220. The pressure inside the air chamber 230 is lower than the external pressure, which comes from the liquid pressure inside the volume into which the straw 212 is immersed. The liquid is forced into the liquid chamber 220 through the straw 212. At this time, the glass bead 250 is pushed open by the liquid, and the base 80 slides upwards relative to the pull rod 60. When the pressure inside and outside the liquid chamber 220 reaches equilibrium, the elastic element 90 returns to its original state.

[0061] When the head 3 is pressed again, the liquid stored in the liquid storage chamber 220 is pushed upwards into the mixing chamber 310 under the pressure change, and the gas stored in the gas storage chamber 230 is also transported to the mixing chamber 310 again under the pressure change, and the gas and liquid are mixed again to prepare foam.

[0062] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0063] For ease of description, directional terms such as "front, back, up, down, left, right," "horizontal, vertical, horizontal," and "top, bottom" generally indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. These terms are used solely for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms 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, and therefore should not be construed as limiting the scope of protection of this application. The directional terms "inner" and "outer" refer to the inner or outer contours relative to the components themselves. For example, if a device in the drawings is inverted, a device described as "above" or "on top of" other devices or structures will subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein are interpreted accordingly.

[0064] Unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0065] Unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0066] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0067] It should also be noted that the terms "one embodiment," "another embodiment," or "embodiment" used in this specification refer to specific features, structures, or characteristics described in connection with that embodiment, which are included in at least one embodiment described in the general description of this application. The appearance of the same expression in multiple places in the specification does not necessarily refer to the same embodiment. Furthermore, when a specific feature, structure, or characteristic is described in connection with any embodiment, the intention is to suggest that implementing such a feature, structure, or characteristic in conjunction with other embodiments also falls within the scope of this application.

[0068] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0069] It should also be noted that the above are merely preferred embodiments of this application and do not limit the scope of patent protection of this application. Any equivalent structural or procedural changes made using the content of this application’s specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the scope of patent protection of this application.

Claims

1. A foam pump characterized by, The utility model relates to a liquid output device, comprising: a head (3); a liquid outlet (1) connected to the head (3), the liquid outlet (1) being used for outputting foam; a pump body (2) movably connected to the head (3); wherein the liquid outlet (1) comprises: a liquid outlet cover (10) and a liquid outlet plate (11), the liquid outlet cover (10) being connected to the side of the head (3), the liquid outlet cover (10) being covered on the liquid outlet plate (11), the liquid outlet plate (11), the liquid outlet cover (10) and the head (3) being sequentially communicated, the liquid outlet cover (10) being provided in a "heart" shape, the liquid outlet plate (11) being provided with a plurality of liquid outlet holes (17), the plurality of liquid outlet holes (17) being used for outputting foam.

2. The foam pump of claim 1, wherein The top of the liquid outlet plate (11) is provided with a convex groove (15), and the bottom of the liquid outlet plate (11) is provided with a plurality of shunt plates (16), the plurality of shunt plates (16) and the liquid outlet plate (11) forming the plurality of liquid outlet holes (17) therebetween, the plurality of liquid outlet holes (17) being communicated with the convex groove (15).

3. The foam pump of claim 2, wherein, The head (3) comprises a nozzle (31), the bottom of the liquid outlet cover (10) is provided with a containing portion (14) corresponding in position and shape to the convex groove (15), the liquid outlet cover (10) is provided with a connecting block (13) which is hollow and is inserted on the nozzle (31), the connecting block (13) being communicated with the containing portion (14).

4. The foam pump of claim 3, wherein, The liquid outlet cover (10) comprises a left half (101) and a right half (102), the first end of the left half (101) and the first end of the right half (102) being connected to form an inwardly recessed area of the liquid outlet cover (10), the second end of the left half (101) and the second end of the right half (102) being connected to form a protruding area of the liquid outlet cover (10).

5. The foam pump of claim 4, wherein, The inwardly recessed area of the liquid outlet cover (10) is connected to the nozzle (31) through the connecting block (13), and the protruding area of the liquid outlet cover (10) is arranged in a direction away from the connecting block (13).

6. The foam pump of claim 5, wherein, The convex groove (15) comprises a first convex groove (151) corresponding to the left half (101) and a second convex groove (152) corresponding to the right half (102), the first end of the first convex groove (151) corresponding to the first end of the left half (101), the first end of the second convex groove (152) corresponding to the first end of the right half (102), the second end of the first convex groove (151) corresponding to the second end of the left half (101), the second end of the second convex groove (152) corresponding to the second end of the right half (102), and the second end of the first convex groove (151) being communicated with the end of the second convex groove (152).

7. The foam pump of claim 6, wherein The several liquid outlet holes (17) are two liquid outlet holes (17), the first ends of the two liquid outlet holes (17) correspond to the first ends of the first and second grooves (151, 152) respectively, the second ends of the two liquid outlet holes (17) correspond to the second ends of the first and second grooves (151, 152) respectively, the second ends of the two liquid outlet holes (17) are connected, and the second ends of the two liquid outlet holes (17) are each provided with a cylindrical hole (18).

8. The foam pump of claim 7, wherein, The first end of the liquid outlet plate (11) is provided in a circular arc shape towards the second end thereof, and the second end of the liquid outlet plate (11) is provided in a cylindrical shape.

9. The foam pump of claim 8, wherein, The cross-sectional area of the second end of the liquid outlet hole (17) is greater than the cross-sectional area of the first end of the liquid outlet hole (17).

10. The foam pump according to any one of claims 1 to 9, characterized in that The foam pump further comprises a cylinder portion (20), a first movable assembly (30), a second movable assembly (40), a vane (50), a pull rod (60), a base (80) and an elastic member (90). One end of the cylinder portion (20) is sleeved in the pump body portion (2). One end of the first movable assembly (30) is slidably sleeved in the cylinder portion (20), and the other end of the first movable assembly (30) is movably arranged in the pump body portion (2). One end of the second movable assembly (40) is slidably sleeved in one end of the first movable assembly (30), and the other end of the second movable assembly (40) is slidably sleeved in the cylinder portion (20). The vane (50) is arranged between the first movable assembly (30) and the second movable assembly (40), the first movable assembly (30) is provided with an air inlet (300), and the contact and separation of the vane (50) and the first movable assembly (30) control the opening and closing of the air inlet (300). One end of the pull rod (60) is slidably sleeved in the second movable assembly (40), one end of the base (80) is slidably sleeved in the cylinder portion (20), the other end of the pull rod (60) is slidably connected to the other end of the base (80), the bottom of the base (80) is arranged at the bottom of the cylinder portion (20), and the elastic member (90) is sleeved on the pull rod (60) and the base (80). An air storage chamber (230) is formed between the first movable assembly (30), the vane (50), the second movable assembly (40) and the cylinder portion (20), a liquid storage chamber (220) is formed between the second movable assembly (40), the pull rod (60) and the cylinder portion (20), a mixing chamber (310) is arranged between the other end of the first movable assembly (30) and the second movable assembly (40), and the mixing chamber (310) is connected to the liquid storage chamber (220) and a nozzle (31). The contact and separation of the vane (50) and the second movable assembly (40) control the communication and separation of the air storage chamber (230) and the mixing chamber (310).

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