CN111493717A

CN111493717A - Foam extrusion device

Info

Publication number: CN111493717A
Application number: CN202010478364.6A
Authority: CN
Inventors: 尹艳梅; 王永吉; 历林忠; 肖庭敏; 林凯
Original assignee: Xiamen Dabai Technology Co Ltd
Current assignee: Xiamen Dabai Technology Co Ltd
Priority date: 2020-05-29
Filing date: 2020-05-29
Publication date: 2020-08-07

Abstract

The invention provides a foam extrusion device, and relates to the technical field of bathrooms. Wherein, this kind of foam extrusion device includes casing, foam extrusion subassembly and pressing subassembly. A liquid storage cavity is arranged in the shell. The foam extrusion assembly is communicated with the liquid storage cavity and comprises a pump body, a movable piece movably arranged in the pump body and a foam forming piece connected with the movable piece. The pressing component drives the movable piece to move so as to open or close the liquid channel in the pump body. In the open state of the liquid channel, the fluid medium enters the movable part and is extruded through the foam-forming part to form foam. During the use, the user presses the operation through simply, presses the subassembly activity so that the cleaning solution in stock solution chamber extrudes the subassembly through the foam and separates out the foam, convenient to use.

Description

Foam extrusion device

Technical Field

The invention relates to the field of bathrooms, in particular to a foam extrusion device.

Background

Currently, cleaning products on the market, such as shower gel, shampoo, hand sanitizer, etc., fill a cleaning liquid in a bottle body, and then squeeze the liquid out by pressing. The cleaning effect by directly using liquid is poor, but when the liquid is converted into foam for cleaning, only manual foam beating or additional purchase of special foam manufacturing equipment is needed. The special foam manufacturing equipment controls the foam formation through a circuit structure, and the manufacturing cost is high.

Disclosure of Invention

The invention provides a foam extrusion device which can be directly separated out in a foam form after being pressed and is convenient to use.

The invention is realized by the following steps:

a foam extrusion device includes a housing, a foam extrusion assembly, and a pressing assembly. A liquid storage cavity for storing fluid media is arranged in the shell. The foam extrusion assembly is communicated with the liquid storage cavity and comprises a pump body with a liquid channel, a movable piece movably arranged in the liquid channel and a foam forming piece connected with the movable piece. The pressing component drives the movable piece to move so as to open or close the liquid channel. In the open state of the liquid channel, the fluid medium enters the movable piece, and the fluid medium in the movable piece is extruded through the foam forming piece to form foam.

In one embodiment, the shell is provided with a foam outlet passage for communicating the foam extrusion assembly with an external space, the foam outlet passage is covered with a detachable massage panel, and the massage panel is provided with a plurality of foam outlet holes and massage pieces.

In one embodiment, at least two liquid storage cavities are arranged in the shell, and each liquid storage cavity is correspondingly provided with the foam extrusion assembly and the pressing assembly.

In one embodiment, the foam outlet passage includes an inner ring cavity and an outer ring cavity annularly arranged outside the inner ring cavity, and the inner ring cavity and the outer ring cavity are not communicated with each other and are respectively communicated with the foam extrusion assembly.

In one embodiment, the foam outlet passage is formed in a foam box arranged on the shell, an annular partition plate is arranged on the foam box, and the foam box is used for separating the inner ring cavity and the outer ring cavity; the two foam extrusion assemblies are arranged at corresponding positions of the inner ring cavity side by side, one of the foam extrusion assemblies is communicated with the inner ring cavity through a straight pipeline, and the other foam extrusion assembly is communicated with the outer ring cavity through a bent pipeline.

In one embodiment, the foam extrusion assembly is connected to the foam cartridge by a telescoping tube. The pressing component comprises a button, a lever and a rotating shaft fixedly arranged on the shell, the lever is rotatably arranged on the rotating shaft, one end of the lever is connected to the moving part, the other end of the lever is connected to the button, the button is movably arranged on the shell, and the lever can be pushed by the button and rotates around the rotating shaft to push the moving part.

In one embodiment, the lever is engaged with the movable member.

In one embodiment, a reinforcing rib is convexly arranged on the peripheral side of the lever.

In one embodiment, the housing includes a functional portion configured with the reservoir and the foam extrusion assembly, and a handle portion connected below the functional portion. The button is disposed on the handle portion.

In one embodiment, the pressing assembly further includes a limiting member for limiting rotation of the button, the limiting member includes a slot and a protrusion adapted to the slot, one of the slot and the protrusion is disposed on the button, and the other is disposed on the handle portion.

In one embodiment, the distance from the rotating shaft to the button is taken as a pressing arm, the distance from the rotating shaft to the movable piece is taken as a pushing arm, and the length of the pressing arm is greater than that of the pushing arm.

In one embodiment, the movable member includes a piston, a fitting member, and an elastic member, the piston is penetrated in front and back, an outer wall of the piston is in friction fit with an inner wall of the pump body, and the fitting member is in fit with the piston to open and close the liquid passage. When the liquid channel is closed, the matching piece is closed by the elastic potential energy of the elastic piece; when the liquid channel is opened, the matching piece overcomes the elastic potential energy to open the liquid inlet end of the piston under the action of the pressing component.

In one embodiment, the fitting piece is provided with a limiting surface capable of sealing the liquid inlet end of the piston, the limiting surface divides the liquid channel into an inlet side close to the liquid storage cavity and an outlet side close to the foam forming piece, a part of the fitting piece on the outlet side is provided with a first water inlet passage communicated with the inner cavity of the piston and the foam forming piece, a gap is formed between the limiting surface and the inner wall of the pump body to form a second water inlet passage, and the limiting surface is controlled by the pressing assembly to open and close the liquid inlet end of the piston so as to control the communication and the sealing of the first water inlet passage and the second water inlet passage.

In one embodiment, a movable block is arranged in the pump body, the movable block is arranged at one end of the elastic element far away from the movable element and blocks the liquid inlet of the pump body under the action of elastic potential energy, and the movable block can overcome the elastic potential energy to open the liquid inlet of the pump body when negative pressure is applied.

In one embodiment, the liquid inlet of the pump body is connected with a gravity piece, the gravity piece comprises a gravity suction pipe connected to the liquid inlet of the pump body and a gravity ball installed at the tail end of the gravity suction pipe, and the gravity suction pipe and the gravity ball are internally provided with a communicated liquid storage cavity and a liquid suction cavity of the pump body. One or more bulges are arranged at the position close to the liquid inlet of the gravity ball.

In one embodiment, the foam forming member comprises a hollow tube and a foaming net arranged at two ends of the hollow tube, wherein the radial length of one end of the hollow tube close to the movable member is smaller than that of the other end of the hollow tube.

The invention has the beneficial effects that: according to the foam extrusion device obtained through the design, when the foam extrusion device is used, the pressing component moves through the pressing operation of the pressing component to drive the foam extrusion component to move, so that the cleaning solution in the liquid storage cavity can separate out foam through the foam extrusion component, and the foam extrusion device is simple in structure and convenient to use.

Furthermore, a detachable massage panel is arranged on the bubble outlet passage, so that the massage effect is achieved, and deep cleaning is achieved. And the massage panel is convenient to replace.

Further, through two liquid storage cavities arranged in parallel, different cleaning agents can be separated out of foam through respective foam forming assemblies. Especially, foam discharging positions of the two foam forming assemblies are integrated on the same foam box, and the structure is compact and miniaturization and convenience of products are realized through the configuration mode of the inner ring cavity and the outer ring cavity.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic view of the structure of a foam extrusion apparatus according to an embodiment of the present invention;

FIG. 2 is a schematic exploded view of the foam extrusion apparatus shown in FIG. 1;

FIG. 3 is a sectional view schematically showing the structure of the foam extruding apparatus shown in FIG. 1;

FIG. 4 is a cross-sectional schematic view of the foam extrusion assembly shown in FIG. 3;

FIG. 5 is an enlarged view of the foam extrusion assembly shown in FIG. 3;

FIG. 6 is an exploded view of the foam molding shown in FIG. 3;

FIG. 7 is a schematic view of the cross-section of FIG. 3 along the line A-A;

FIG. 8 is a schematic structural view of the foam cartridge shown in FIG. 2;

fig. 9 is a schematic structural view of a massage panel in another embodiment;

FIG. 10 is a schematic view of the flow of fluid medium in a foam extrusion apparatus in a pressed state;

FIG. 11 is an enlarged view of the foam extrusion assembly shown in FIG. 10;

FIG. 12 is a cross-sectional view taken along the line B-B in FIG. 10;

FIG. 13 is a schematic view of the flow of fluid medium in the foam extrusion apparatus after the button is released;

FIG. 14 is an enlarged view of the foam extrusion assembly shown in FIG. 13;

fig. 15 is a sectional view of fig. 13 in the direction of C-C.

Icon: 10-a housing; 11-a functional part; 111-a liquid storage cavity; 112-a bubble exit path; 113-liquid storage cover; 114-a telescopic tube; 12-a handle part; 121-a cover plate; 13-a foam box; 14-a mounting plate; 130-a sealing ring; 131-an annular partition; 132-inner ring cavity; 133-outer ring cavity; 134-convex cover; 135-water outlet; 20-a foam extrusion assembly; 201-a liquid channel; 202-a liquid suction cavity; 21-a pump body; 22-a movable member; 221-a piston; 222-a mating member; 223-an elastic member; a-a limiting surface; 224-press; 225-a piston stop block; b1-water passing hole; 226-annular stop block; 211-movable plugs; 212-gravity piece; 213-gravity pipette; 214-gravity ball; 215-projection; 23-a foam form; 231-a hollow tube; 232-foaming net; 23 a-a straight pipeline; 23 b-bending the tubing; 30-a pressing assembly; 31-a button; 32-lever; 321-reinforcing ribs; 33-a rotating shaft; 34-a stop; 341-card slot; 342-snap; 40-a massage panel; 41-forming foam holes; 42-a massage member; 43-a plate body; 44-cover body.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Examples

Referring to fig. 1 and 2, the present embodiment provides a foam extruding apparatus including a housing 10, and a foam extruding assembly 20 and a pressing assembly 30 disposed in the housing 10.

In this embodiment, the housing 10 includes a functional portion 11 disposed horizontally and a handle portion 12 disposed vertically below the functional portion 11. The handle portion 12 may be integrally formed with the functional portion 11, or may be attached to the lower portion of the functional portion 11 by a connection method such as screwing.

Referring to fig. 2 and 3, a reservoir chamber 111 for storing a fluid medium and a foam discharging passage 112 for receiving foam are respectively provided at both axial ends of the functional portion 11. The inlet of the liquid storage cavity 111 is provided with a liquid storage cover 113, which facilitates the addition of cleaning liquid. In this embodiment, the liquid storage cap 113 is a circular screw cap. It is understood that, in other embodiments, the liquid storage cover 113 may also be a plug type cover structure, and the present embodiment is not particularly limited. It will be appreciated that the fluid medium may be a cleansing liquid such as a shampoo, body wash, facial cleanser, or the like. It should be noted that the bubble generating passage 112 in this embodiment is used to indicate a passage through which the foam flows.

Referring to fig. 3 to 5, the foam extruding unit 20 is disposed between the reservoir chamber 111 and the foam discharging passage 112 for communicating an outlet end of the reservoir chamber 111 with an inlet end of the foam discharging passage 112. The fluid medium in the reservoir 111 is extruded out of the foam by the foam extrusion assembly 20 and enters the foam outlet passage 112. The foam extrusion assembly 20 includes a pump body 21, a movable member 22, and a foam molding 23. The pump body 21 is a hollow tube having a fluid passage 201. The pump body 21 is clamped at the liquid outlet end of the liquid storage cavity 111. For example, a projection is provided on the pump body 21, and a notch is provided on the inner wall of the housing 10 forming the reservoir chamber 111, thereby fixing the pump body 21. The movable member 22 is movably disposed within the liquid passage 201. The pressing member 30 is disposed within the handle portion 12 and is connected to the moveable member 22. The pressing component 30 drives the movable member 22 to open or close the liquid passage 201 by pressing. In the open state of the liquid channel 201, the fluid medium enters the foam-forming element 23 via the movable element 22 and is extruded to form a foam.

Specifically, in the present embodiment, the movable member 22 includes a piston 221, a fitting member 222, and an elastic member 223. The piston 221 extends through the front and rear and has an outer wall frictionally engaged with an inner wall of the pump body 21. Fitting 222 engages the piston to open and close the fluid path. In the initial state, the fitting member 222 is closed at the liquid inlet end of the piston 221 by the elastic potential energy of the elastic member 223, so that the liquid passage 201 is closed. In the pressed state, the fitting 222 is acted on by the pressing assembly 30 to open the liquid inlet end of the piston 221 against the elastic potential energy, so that the liquid channel 201 is opened.

The fitting 222 has a stopper surface a capable of closing the liquid inlet end of the piston 221, and the stopper surface a divides the liquid passage 201 into an inlet side a2 near the liquid storage chamber 111 and an outlet side a1 near the foamed member 23. The part of the fitting 222 on the outlet side a1 is opened with a first water inlet passage S1 communicating the inner cavity of the piston 221 and the foam molding 23, and a gap is provided between the stopper surface a and the inner wall of the pump body 21 to form a second water inlet passage S2. In a state where the stopper surface a opens the liquid inlet end of the piston 221, the first water inlet passage S1 and the second water inlet passage S2 communicate with each other.

Specifically, in this embodiment, the fitting piece 222 includes a pressing piece 224 and a piston stopper 225, the pressing piece 224 is movably sleeved in the liquid passage 201 of the pump body 21, and two ends of the pressing piece 224 are respectively connected to the foam forming piece 23 and the piston stopper 225. The pressing member 224 is a hollow tubular structure allowing a fluid medium to pass therethrough, thereby communicating the liquid passage 201 and the foam molding member 23. Preferably, the outlet end of the pressing member 224 has one or more coaxially arranged outlet pipes, and the diameter of the outlet pipe is gradually reduced along the outflow direction of the fluid medium. By providing a plurality of segments of the outlet duct, a constriction is formed, so that the fluid medium can enter the foam former 23 with a greater impact force.

The piston 221 is sleeved at one end, close to the liquid storage cavity 111, of the pressing piece 224, a limiting surface A is formed on the piston limiting block 225, and the piston limiting block 225 is clamped on the inner pipe wall of the liquid inlet end of the pressing piece 224 through a hollow convex block B convexly arranged on the limiting surface A. In the initial state, the piston 221 abuts on the stopper surface a to close the second water inlet passage S2. A water passing channel (which can be formed by a gap or an opening on the side wall of the pressing piece 224) is arranged between the limiting surface A and the liquid inlet end surface of the pressing piece 224. The side wall of the hollow convex block B corresponding to the water passing channel is provided with a water passing hole B1. The water passage, the water passing hole B1, and the hollow pipe of the pressing piece 224 together form a first water inlet passage S1. In the pressed state, the piston 221 is frictionally held in the home position by the cylinder 21, and the pressing piece 224 moves rightward, so that the stopper surface a is separated from the piston 221, and the first water inlet passage S1 and the second water inlet passage S2 communicate with each other.

Further, an annular stop 226 is convexly arranged on the outer peripheral wall of the pressing piece 224 for preventing the pressing piece 224 from moving rightwards excessively. The space between the annular stopper 226 and the stopper surface a forms a relative movement space with the piston 221. In the pressed state, the pressing member 224 moves right until the piston 221 contacts the annular stopper 226.

It is understood that, in other embodiments, the fitting member 222 may also be a one-piece structure, and a water outlet is formed on a side wall of the outlet side a1 of the limiting surface a, and the water outlet extends to communicate with the foam forming member 23 to form the first water inlet passage S1.

In this embodiment, the elastic member 223 is a spring, one end of the spring abuts against the piston stopper 225, and the other end abuts against the pump body 21, so that in an initial state, the piston stopper 225 can press against the liquid inlet of the piston 221 to close the liquid passage 201.

Further, the contact end of the elastic member 223 and the pump body 21 is provided with a movable block 211. And the movable block 211 blocks the liquid inlet of the pump body 21 under the action of the elastic potential energy of the elastic piece 223. The movable block 211 can overcome the elastic potential energy to move inwards when receiving negative pressure so as to open the liquid inlet of the pump body 21. In this embodiment, the movable block 211 is spherical and is in contact with the liquid inlet of the pump body 21 under the action of a spring. The diameter of the movable block 211 is larger than that of the liquid inlet of the pump body, so as to ensure the blocking effect.

Further, a gravity piece 212 is connected to the liquid inlet of the pump body 21, and the gravity piece 212 includes a gravity suction pipe 213 connected to the liquid inlet of the pump body 21 and a gravity ball 214 installed at the tail end of the gravity suction pipe 213. A liquid suction chamber 202 communicating the liquid storage chamber 111 and the liquid inlet of the pump body 21 is provided in the gravity suction pipe 213 and the gravity ball 214. The gravity straw 213 is generally an elongated tubular structure. The gravity ball 214 will always suck the liquid downwards, ensuring that the gravity suction tube 213 can suck the liquid into the liquid suction chamber 202 under various hand-holding angle conditions.

Further, one or more protrusions 215 are provided at the liquid inlet near the gravity ball 214. The protrusion 215 is disposed around the liquid inlet of the gravity ball 214. By providing the protrusion 215, a space is ensured between the gravity ball 214 and the inner wall of the pump body 21. The liquid inlet of the gravity ball 214 is prevented from being mutually attracted with the inner wall of the pump body 21, so that the fluid medium cannot be sucked.

Referring to fig. 6, in the present embodiment, the foam molding member 23 includes a hollow tube 231 and foam discharging nets 232 installed at both ends of the hollow tube 231. The radial length of the hollow tube 231 is greater at one end near the bubble discharge passage 112 than at the other end, i.e., the radial length of the hollow tube 231 is less at one end near the movable member than at the other end. The foam outlet net 232 has a fine net structure, and the fluid medium is dispersed into fine foam through the two foam outlet nets 232 at the two ends.

Further, the liquid outlet end of the pressing member 224 is provided with an insertion groove, in which one end of the foam forming member 23 is inserted, and the other end is connected to the foam discharging passage 112 through the telescopic tube 114. Bellows 114 can provide a space for movement dampening for foam extrusion assembly 20.

In the present embodiment, the movement of the foam extruding assembly 20 is achieved by the pressing operation of the pressing assembly 30. Referring to fig. 2 and 7, the pressing assembly 30 includes a button 31, a lever 32, and a shaft 33 fixed to the housing 10. The housing 10 is provided with a mounting plate 14 for mounting the rotary shaft 33. The lever 32 is a long bar structure, and is rotatably disposed on the rotating shaft 33, taking the rotating shaft 33 as a fulcrum. The lever 32 is connected at one end to the movable member 22 and at the other end to the push button 31. The push-button 31 is pressed to rotate the lever 32 about the rotation axis 33, pushing the movable element 22.

Further, the lever 32 engages the moveable member 22. Specifically, an arc-shaped bayonet is arranged at the connecting end of the lever 32 and the movable element 22, the bayonet is clamped on the outer peripheral wall of the hollow tube 231 and is abutted against the pressing element 224, and the lever 32 rotates to apply a force moving rightwards on the pressing element 224.

Further, in order to ensure the structural stability of the lever 32, a rib 321 is protruded on the circumferential side of the lever 32.

Further, the distance from the rotating shaft 33 to the button 31 is used as a pressing arm, the distance from the rotating shaft 33 to the movable member is used as a pushing arm, and the length of the pressing arm is larger than that of the pushing arm. The pressing arm is longer, so that the pressing structure is more labor-saving. Preferably, the length of the pressing arm is 3-5 times of that of the pushing arm.

Further, a button 31 is pressably provided on the grip portion 12. Preferably, the pressing assembly 30 further includes a stopper 34 for limiting the rotation of the button 31 in the circumferential direction, and the stopper 34 includes a locking groove 341 extending in the pressing direction and a locking protrusion 342 adapted to the locking groove 341. One of the catching groove 341 and the catching protrusion 342 is provided on the button 31, and the other is provided on the handle portion 12. For example, in the present embodiment, the button 31 is provided with the locking protrusion 342, the handle portion 12 is provided with the locking groove 341, and the button 31 can only be pressed in the opening direction of the locking groove 341 without rotating. It is understood that, in other embodiments, a snap projection may be provided on the handle portion 12 and a snap groove may be provided on the button 31.

Further, the end of the lever 32 connected to the button 31 is provided with a socket into which the end of the button 31 is plugged.

Further, a pressing assembly 30 is disposed within the interior cavity of the handle portion 12. The handle portion 12 has a detachable cover plate 121, and the cover plate 121 is attached by a fastening member such as a screw.

Further, at least two liquid storage cavities 111 are arranged in the housing 10, and each liquid storage cavity 111 is correspondingly provided with a foam extrusion assembly 20 and a pressing assembly 30. Specifically, in this embodiment, two stock solution chambeies 111 set up side by side, and similarly, two foam extrusion component 20 set up side by side to separate out the foam through pressing component 30 independent control stock solution chamber respectively, compact structure can be suitable for multiple fluid medium demand simultaneously, for example pack shower bath and shampoo respectively in two stock solution chambeies 111.

Referring to fig. 8, in the present embodiment, the bubble outlet passage 112 includes an inner ring cavity 132 and an outer ring cavity 133 annularly disposed outside the inner ring cavity 132. The inner ring cavity 132 and the outer ring cavity 133 are not communicated with each other and are respectively communicated with one of the foam extrusion assemblies 20. Specifically, in the present embodiment, the bubble discharge path 112 is formed in the foam case 13 fixed to the housing 10. The foam box 13 is closed at the foam outlet end of the housing 10 corresponding to the foam molding 23 by fastening members such as bolts. Further, a sealing ring 130 is provided on the contact surface of the foam box 13 and the housing 10 to prevent liquid leakage.

The side of the foam box 13 remote from the foam former 23 is provided with an annular partition 131 separating an inner ring cavity 132 and an outer ring cavity 133. The inner ring cavity 132 and the outer ring cavity 133 are respectively provided with a passage for communicating with the foam molding 23. In this embodiment, the foam forms 23 of the two foam extrusion assemblies 20 are arranged side by side and in a position corresponding to the inner ring cavity 132. One of the foam moldings 23 communicates with the inner ring cavity 132 through a straight pipe 23a, and the other foam molding 23 communicates with the outer ring cavity 133 through a bent pipe 23 b. Compact structure, is favorable to practicing thrift the space.

Further, the bent tube 23b is formed of a convex cover 134 protruding upward along the bottom surface of the inner ring cavity 132, and the bottom of the convex cover 134 is opened to communicate with the corresponding foam molding 23. Part of the side wall of the convex cover 134 is coplanar with the annular partition 131, and a water outlet hole 135 is formed at the coplanar position. The water outlet hole 135 communicates with the outer ring cavity 133 and the bottom opening of the convex cover 134. Through the arrangement, the separation of the inner ring cavity and the outer ring cavity is ensured, and the space is effectively utilized.

Further, the casing 10 is provided with a massage panel 40 detachably covering the bubble outlet passage 112, and the massage panel 40 is provided with a plurality of bubble outlet holes 41 and massage members 42. The massage member 42 may be a strip of soft gel (see fig. 2), or a bristle structure (see fig. 9).

Referring to the drawings, in the present embodiment, the massage face plate 40 includes a plate body 43 and a cover body 44 for covering the plate body 43 on the foam case 13. The plate body 43 and the cover body 44 are both provided with foam outlet holes 41 corresponding to the positions. The massage member 42 is disposed on the plate 43, and the cover 44 is provided with an opening through which the massage member 42 passes. With this arrangement, the disassembly is convenient, and the plate body 43 can be replaced.

The working principle of the foam extrusion device of the embodiment is as follows:

a liquid storage cavity 111 of the housing 10 is filled with a cleaning agent (taking bath cream as an example), and a liquid storage cover 113 is covered. As shown in fig. 3, in the initial state, both ends of the elastic member 223 (spring) are respectively abutted against the piston stopper 225 and the movable stopper 211, the stopper surface a of the piston stopper 225 is abutted against the right end surface of the piston 221, and the detergent cannot enter the inside of the pressing member 224. The movable block 211 blocks the liquid inlet of the pump body 21 under the action of the spring.

As shown in fig. 10 to 12, when the user uses the push button 31, the push lever 32 is rotated about the rotation shaft 33 as a fulcrum. The lever 32 is rotated to apply a rightward force to the pressing member 224. The piston 221 is held stationary by friction with the inner wall of the pump body 21. The pressing piece 224 is stressed to overcome the elastic potential energy of the spring and moves rightwards, so that the limiting surface A of the piston limiting block 225 is gradually separated from the right end surface of the piston 221, the pressing piece 224 continues to move rightwards until the annular limiting block 226 is abutted against the left end surface of the piston 221, and the movement is stopped. At this time, the water through hole B1 on the piston stopper 225 is opened. Meanwhile, the movable block 211 at the other end of the spring blocks the liquid inlet of the pump body 21. The shower cream in the liquid passage 201 is pressed to flow to the foaming member 23 through the water through hole B1, and the shower cream is scattered by the two bubble discharging nets 232 on the foaming member 23 to form fine bubbles to be discharged to the bubble discharging passage 112.

As shown in fig. 13 to 15, after the pressing is completed, the button 31 is released. The spring is restored by elastic potential energy, and pushes the piston stopper 225 to drive the whole fitting piece 222 to move left, so that the limiting surface a of the piston stopper 225 and the right end surface of the piston 221 close the liquid channel. At this time, since the fitting 222 moves to the left, the liquid storage space in the pump body 21 increases, and a vacuum area is formed in a short time, so that the shower gel on the end of the gravity suction pipe 213 is sucked.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A foam extrusion apparatus, comprising:

a housing, in which a liquid storage cavity for storing a fluid medium is arranged;

the foam extrusion assembly comprises a pump body with a liquid channel, a movable piece movably arranged in the liquid channel and a foam forming piece communicated with the movable piece; and the number of the first and second groups,

the pressing component drives the moving part to move so as to open or close the liquid channel, under the opening state of the liquid channel, fluid media enter the moving part, and the fluid media in the moving part are extruded by the foam forming part to form foam.

2. The foam extrusion apparatus as claimed in claim 1, wherein the housing is provided with a foam outlet passage for communicating the foam extrusion assembly with an external space, the foam outlet passage is covered with a detachable massage panel, and the massage panel is provided with a plurality of foam outlet holes and massage members.

3. The foam extrusion apparatus according to claim 1, wherein at least two liquid storage cavities are provided in the housing, and each liquid storage cavity is provided with the foam extrusion assembly and the pressing assembly correspondingly.

4. The foam extrusion apparatus of claim 2, wherein the foam outlet passage has an inner ring cavity and an outer ring cavity annularly disposed outside the inner ring cavity, and the inner ring cavity and the outer ring cavity are not communicated with each other and are respectively communicated with one of the foam extrusion assemblies.

5. The foam extrusion apparatus of claim 4 wherein the foam outlet passage is formed in a foam box disposed on the housing, the foam box having an annular partition separating the inner and outer ring cavities; the two foam extrusion assemblies are arranged at corresponding positions of the inner ring cavity side by side, one foam extrusion assembly is communicated with the inner ring cavity through a straight pipeline, and the other foam extrusion assembly is communicated with the outer ring cavity through a bent pipeline; and the foam extrusion assembly is connected to the foam cartridge by a telescoping tube.

6. The foam extrusion apparatus of claim 1, wherein the pressing assembly comprises a button, a lever and a rotating shaft fixed on the housing, the lever is rotatably disposed on the rotating shaft, one end of the lever is connected to the movable member, and the other end of the lever is connected to the button; the button is movably arranged on the shell, and the lever can be pushed by the button to rotate around the rotating shaft so as to push the movable piece.

7. The foam extrusion apparatus of claim 6, wherein the lever is snap-fitted to the movable member; and reinforcing ribs are convexly arranged on the peripheral sides of the levers.

8. The foam extrusion apparatus of claim 6, wherein the housing comprises a functional portion configured with the reservoir and the foam extrusion assembly, and a handle portion connected below the functional portion; the button is disposed on the handle portion.

9. The foam extrusion apparatus of claim 8, wherein the pressing assembly further comprises a stopper for limiting the rotation of the button, the stopper comprising a locking groove and a locking protrusion adapted to the locking groove, one of the locking groove and the locking protrusion being disposed on the button, and the other one of the locking groove and the locking protrusion being disposed on the handle portion; and taking the distance from the rotating shaft to the button as a pressing force arm, taking the distance from the rotating shaft to the moving part as a pushing force arm, and enabling the length of the pressing force arm to be larger than that of the pushing force arm.

10. The foam extrusion apparatus according to claim 1, wherein the movable member includes a piston, a fitting member, and an elastic member, the piston is penetrated in front and rear and an outer wall thereof is frictionally engaged with an inner wall of the pump body, and the fitting member is engaged with the piston to open and close the liquid passage; in the closed state of the liquid channel, the matching piece is closed at the liquid inlet end of the piston by the elastic potential energy of the elastic piece; in the open state of the liquid channel, the fitting piece overcomes the elastic potential energy to open the liquid inlet end of the piston under the action of the pressing component.

11. The foam extrusion apparatus according to claim 10, wherein the fitting has a limiting surface capable of closing the liquid inlet end of the piston, the limiting surface separates the liquid passage into an inlet side close to the liquid storage chamber and an outlet side close to the foam molding, a first water inlet passage communicating the piston inner chamber with the foam molding is opened at a portion of the fitting on the outlet side, a gap is formed between the limiting surface and the inner wall of the pump body to form a second water inlet passage, and the limiting surface is controlled by the pressing member to open and close the liquid inlet end of the piston to control the communication and the closure of the first water inlet passage and the second water inlet passage.

12. The foam extrusion device according to claim 11, wherein a movable block is disposed in the pump body, the movable block is disposed at an end of the elastic member away from the movable member and blocks the liquid inlet of the pump body under the action of elastic potential energy, and the movable block can overcome the elastic potential energy when receiving negative pressure to open the liquid inlet of the pump body.

13. The foam extrusion device according to claim 1, wherein the liquid inlet of the pump body is connected with a gravity piece, the gravity piece comprises a gravity suction pipe connected to the liquid inlet of the pump body and a gravity ball mounted at the tail end of the gravity suction pipe, and liquid suction cavities communicated with the liquid storage cavity and the pump body are arranged in the gravity suction pipe and the gravity ball; one or more bulges are arranged at the position close to the liquid inlet of the gravity ball.

14. The foam extrusion apparatus as claimed in claim 1, wherein the foam molding member comprises a hollow tube and a foaming net installed at both ends of the hollow tube, and a radial length of one end of the hollow tube near the movable member is smaller than that of the other end.