Externally mounted all-plastic foam pump, and foam generating method thereof

Abstract

An externally mounted all-plastic foam pump, comprising a pressing head (100), a fixing member (200), a piston (300), an elastic member (400), a cylinder body (500), and a suction tube (600), wherein one end of the fixing member (200) is fixedly or detachably connected to the pressing head (100), and the other end thereof is fixedly or detachably connected to the piston (300); the fixing member (200) is at least partially accommodated in the cylinder body (500); one end of the piston (300) passes through the elastic member (400); the suction tube (600) is mounted at one end of the cylinder body (500); the piston (300) is internally provided with a pull rod (310); the pull rod (310) is linked with the piston (300); the elastic member (400) is made of a recyclable elastic material; and the fixing member (200) is internally provided with a liquid mixture portion (210).

Description

A fully plastic external foam pump and a method for generating foam thereof Technical Field

[0001] The invention relates to the technical field of foam pumps, in particular to an all-plastic external foam pump and a method for generating foam thereof. Background Art

[0002] With the progress of society, more and more items that can facilitate people's daily lives are now widely used in people's lives. Now people are more concerned about their own health and hygiene. In order to keep the body clean, people are accustomed to using some cleaning liquids to clean when washing hands, washing faces or taking a bath. In order to meet people's needs, there are now a large number of facial cleansers, hand soaps, shower gels and other cleaning liquids on the market. For ease of use, these liquids are generally placed in bottle-like containers, and people squeeze out the liquid in the container by pressing the button for use.

[0003] Current foam pumps of this type all use a metal spring as a reset component. After the liquid is removed, the metal spring returns to its original position due to its deformation. However, when the foam pump is discarded and needs to be recycled, since the foam pump is made of plastic material except for the metal spring, the entire foam pump must be disassembled and the metal spring and other materials must be recycled separately. This makes the entire recycling process cumbersome, increases work time, and reduces work efficiency.

[0004] Summary of the Invention

[0005] Based on this, it is necessary to provide a fully plastic external foam pump that can be quickly recycled and a method for generating foam thereof.

[0006] A fully plastic external foam pump comprises a pressing head, a fixing part, a piston, an elastic part, a barrel, and a straw. One end of the fixing part is fixedly or detachably connected to the pressing head, and the other end is fixedly or detachably connected to the piston. The fixing part is at least partially accommodated in the barrel, one end of the piston is passed through the elastic part, and the straw is installed at one end of the barrel. A pull rod is provided in the piston, and the pull rod is linked to the piston. The elastic part is made of a recyclable elastic material, and a liquid mixing part is provided in the fixing part.

[0007] In one embodiment, the elastic member includes an upper elastic portion, a lower elastic portion, and a fixing ring, and the upper elastic portion and the lower elastic portion are fixedly connected by the fixing ring.

[0008] In one embodiment, the elastic member includes a first elastic member and a second elastic member, and the first elastic member and the second elastic member are an axisymmetric integrally formed structure.

[0009] In one embodiment, the elastic member is an egg-shaped structure.

[0010] In one embodiment, one end of the barrel has a glass bead.

[0011] In one embodiment, the elastic member is made of plastic material.

[0012] In one embodiment, the foam pump further includes an elastic member fixing seat, and the elastic member fixing seat is installed in the barrel.

[0013] In one embodiment, the foam pump further includes a filter element, one end of which is fixedly connected to the fixing element, and a filter mesh is provided inside the filter element.

[0014] A method for producing foam using an all-plastic external foam pump.

[0015] S1, press the button to move it toward the elastic member;

[0016] S2, press the head to drive the fixing part to move toward the elastic part;

[0017] S3, the fixed part drives the piston to move toward the elastic part;

[0018] S4, the piston presses the elastic member to cause it to deform and allow the gas in the cylinder to enter the liquid mixing part;

[0019] S5, one end of the piston is located in the small tube of the cylinder body and drives the pull rod to move toward the straw;

[0020] S6, the liquid enters the mixing part through the gap between the piston and the rod;

[0021] S7. Foam flows out from the massage head.

[0022] In one embodiment, the elastic member fully fills the space inside the barrel.

[0023] The above-mentioned all-plastic external foam pump and the method for generating foam thereof use an elastic part made of recyclable elastic material. When the pressing head is pressed down, the pressing head drives the piston to be pressed down, causing the elastic part to deform and fully compressing the space inside the cylinder body, so that the gas in the cylinder body enters the mixed liquid part. At the same time, one end of the piston enters the small tube of the cylinder body and drives the pull rod to move toward the straw. The liquid enters the mixed liquid part through the gap between the piston and the pull rod, and the foam flows out from the pressing head. Since the elastic part is made of recyclable elastic material, it can be recycled together with the foam pump during recycling, which is simple and convenient and improves work efficiency. Moreover, the elastic part deforms and fully fills the space inside the cylinder body, so that more gas can enter the mixed liquid part, making the extruded foam effect better. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] FIG1 is a schematic diagram of the assembly structure of an all-plastic external foam pump according to an embodiment of the present invention;

[0025] FIG2 is a schematic cross-sectional view of the all-plastic external foam pump according to an embodiment of the present invention shown in FIG1 ;

[0026] FIG3 is a schematic cross-sectional view of the structure of the fully plastic external foam pump of another embodiment of the present invention shown in FIG1 . DETAILED DESCRIPTION

[0027] To make the above-mentioned objects, features, and advantages of the present invention more readily apparent, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. The following description sets forth numerous specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] It should be noted that when an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element. In contrast, when an element is said to be "directly" connected to another element, there are no intermediate elements.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which the present invention pertains. The terms used herein in the specification of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0030] As shown in Figure 1, an all-plastic external foam pump includes a pressing head 100, a fixing member 200, a piston 300, an elastic member 400, a barrel 500, and a straw 600. One end of the fixing member 200 is fixedly or detachably connected to the pressing head 100, and the other end is fixedly or detachably connected to the piston 300. The fixing member 200 is at least partially accommodated in the barrel 500, one end of the piston 300 is passed through the elastic member 400, and the straw 600 is installed on one end of the barrel 500. A pull rod 310 is provided in the piston 300, and the pull rod 310 is linked to the piston 300. The elastic member 400 is made of recyclable elastic material, and the fixing member 200 is provided with a liquid mixing portion 210.

[0031] As shown in FIG. 2 , in one embodiment, the elastic member 400 includes an upper elastic portion 410 , a lower elastic portion 420 , and a fixing ring 430 . The upper elastic portion 410 and the lower elastic portion 420 are fixedly connected by the fixing ring 430 .

[0032] As shown in FIG. 3 , in one embodiment, the elastic member 400 includes a first elastic member 440 and a second elastic member 450 , and the first elastic member 440 and the second elastic member 450 are an axisymmetric integrally formed structure.

[0033] In one embodiment, the elastic member 400 is an egg-shaped structure.

[0034] In one embodiment, one end of the barrel 500 has a glass bead 700 .

[0035] In one embodiment, the elastic member 400 is made of plastic material.

[0036] In one embodiment, the foam pump further includes an elastic member fixing seat 800 , and the elastic member fixing seat 800 is installed in the barrel 500 .

[0037] In one embodiment, the foam pump further includes a filter element 900 , one end of which is fixedly connected to the fixing element 200 , and a filter mesh is provided inside the filter element 900 .

[0038] A method for producing foam using an all-plastic external foam pump.

[0039] S1, pressing the pressing head 100 to move it toward the elastic member 400;

[0040] S2, the pressing head 100 drives the fixing member 200 to move toward the elastic member 400;

[0041] S3, the fixing member 200 drives the piston 300 to move toward the elastic member 400;

[0042] S4: The piston 300 compresses the elastic member 400 to deform it, causing the gas in the barrel 500 to enter the liquid mixing portion 210;

[0043] S5. One end of the piston 300 is located in the small tube 510 of the cylinder body 500 and drives the pull rod 310 to move toward the straw 600.

[0044] S6, the liquid enters the liquid mixing portion 210 through the gap between the piston 300 and the pull rod 310;

[0045] S7. Foam flows out from the pressing head 100.

[0046] In one embodiment, the elastic member 400 fully fills the space inside the barrel 500 .

[0047] It should be noted that the elastic member 400 is made of a recyclable elastic material, wherein the recyclable elastic material is an existing material and is recyclable. In the initial state, the small tube 510 of the barrel body 500 contains a preset content of liquid.

[0048] Example 1: The elastic member 400 is a split structure, comprising an upper elastic portion 410, a lower elastic portion 420, and a fixing ring 430. The upper elastic portion 410 and the lower elastic portion 420 are fixedly connected by the fixing ring 430. In this embodiment, the upper elastic portion 410 and the lower elastic portion 420 are both bowl-shaped structures, buckled together, and fixedly connected by the fixing ring 430.

[0049] When foam is needed, the pressing head 100 is pressed to move it toward the elastic member 400; the pressing head 100 presses the fixing member 200 to move it toward the elastic member 400; the fixing member 200 presses the piston 300 to move it toward the elastic member 400; the piston 300 presses the upper elastic part 410, and the lower elastic part 420 abuts against the barrel 500, causing the upper elastic part 410 and the lower elastic part 420 to deform and fully fill the space inside the barrel 500, allowing the gas in the barrel 500 to enter the mixing part. 210, one end of the piston 300 is located in the small tube 510 of the barrel 500 and drives the pull rod 310 to move toward the straw 600. At this time, there is a certain gap between the piston 300 and the pull rod 310. At this time, there is a certain amount of liquid in the small tube 510. The liquid enters the mixing part 210 through the gap between the piston 300 and the pull rod 310, and the foam flows out from the pressing head 100. Release the pressing head 100, the elastic member 400 restores its deformation, and the other components return to their initial positions.

[0050] Example 2: The elastic member 400 includes a first elastic member 440 and a second elastic member 450, which are integrally formed. In this application, the first elastic member 440 and the second elastic member 450 are both bowl-shaped, with the bottoms of the bowls facing each other. Because the bowl openings face outward, they can be made into an integrally formed structure.

[0051] When foam is needed, the pressing head 100 is pressed to move it toward the elastic part 400. The pressing head 100 presses the fixing part 200 and moves it toward the elastic part 400. The fixing part 200 presses the piston 300 and moves it toward the elastic part 400. The piston 300 presses the first elastic part 440, and the second elastic part 450 is abutted against the barrel 500, so that the first elastic part 440 and the second elastic part 450 are deformed to fully fill the space inside the barrel 500, so that the gas in the barrel 500 enters the mixing liquid part 210. One end of the piston 300 is located in the small barrel 510 of the barrel 500 and drives the pull rod 310 to move toward the straw 600. At this time, there is a certain gap between the piston 300 and the pull rod 310. At this time, there is a certain amount of liquid in the small barrel 510. The liquid enters the mixing liquid part 210 through the gap between the piston 300 and the pull rod 310, and the foam flows out from the pressing head 100.

[0052] In this way, an all-plastic external foam pump uses an elastic member 400 made of recyclable elastic material. When the pressing head 100 is pressed down, the pressing head 100 drives the piston 300 to be pressed down, causing the elastic member 400 to deform and fully compress the space inside the barrel 500, so that the gas in the barrel 500 enters the mixing liquid part 210. At the same time, one end of the piston 300 enters the small tube 510 of the barrel 500 and drives the pull rod 310 to move toward the straw 600. The liquid enters the mixing liquid part 210 through the gap between the piston 300 and the pull rod 310, and the foam flows out from the pressing head 100. Since the elastic member 400 is made of recyclable elastic material, it can be recycled together with the foam pump during recycling, which is simple and convenient and improves work efficiency. Moreover, the elastic member 400 is deformed and fully fills the space inside the barrel 500, so that more gas can enter the mixing liquid part, making the extruded foam effect better.

[0053] In order to control the liquid entering the foam pump, one end of the barrel 500 is provided with a glass bead 700 .

[0054] In this way, when foam is needed, one end of the piston 300 is located in the small tube 510 of the barrel body 500 and at the same time drives the pull rod 310 to move toward the straw 600, pressing the glass bead 700 at the connection between the small tube 510 and the straw 600, so that the external liquid will not enter the foam pump. When the pressing head 100 is no longer pressed, the elastic part 400 restores its deformation, one end of the piston 300 moves toward the pressing head 100, and the glass bead 700 moves toward the piston 300 under the pressure of the external liquid, and the liquid enters the small tube 510. The setting of the glass bead 700 facilitates the liquid to enter the foam pump.

[0055] Furthermore, in order to facilitate the fixing of the elastic member 400 , the foam pump further includes an elastic member fixing seat 800 .

[0056] In this way, by fixing the elastic member 400 on the elastic member fixing seat 800, the elastic member 400 will not move randomly, so that the foam pump can be used normally.

[0057] Furthermore, in order to obtain better foaming effect, the foam pump further includes a filter element 900 .

[0058] In this way, one end of the filter element 900 is fixedly connected to the fixing element 200, and a filter net is provided inside the filter element 900. When the gas-liquid mixed liquid enters the filter element 900 from the liquid mixing portion 210 and is filtered through the filter net, the foam produced is finer and has a better effect.

[0059] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0060] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be determined by the appended claims.

Claims

03 08 231. An al I-plastic external foam pump, characterized by comprising: an actuator, a fixing member, a plunger, an elastic member, a cylinder body, and a straw, wherein one end of the fixing member is fixed or detachably connected to the actuator, other end of the fixing member is fixed5 or detachably connected to the plunger, the fixing member is at least partially accommodated in the cylinder body, one end of the plunger is penetrated into the elastic member, the straw is installed on one end of the cylinder body, a pulling rod is disposed in the plunger, the pulling rod is disposed in linkage with the plunger, the elastic member is made of a recyclable elastic material, and a liquid mixing portion is disposed in the fixing member.10 2. The all-plastic external foam pump according to claim 1, characterized in that the elasticmember comprises an upper elastic portion, a lower elastic portion, and a fixing ring, and the upper elastic portion and the lower elastic portion are fixedly connected by the fixing ring.

3. The all-plastic external foam pump according to claim 2, characterized in that the elastic member comprises a first elastic member and a second elastic member, and the first elastic member15 and the second elastic member are an axisymmetric integral molding structure.

4. The all-plastic external foam pump according to claim 2, characterized in that the elastic member is an egg-shaped structure.

5. The all-plastic external foam pump according to claim 1, characterized in that one end of the cylinder body has a glass bead.20 6. The all-plastic external foam pump according to claim 1, characterized in that the elasticmember is made of a plastic material.

7. The all-plastic external foam pump according to claim I. characterized in that the foam pump further comprises an elastic member fixing base, and the elastic member fixing base is installed in the cylinder body.25 8. The all-plastic external foam pump according to claim 1, characterized in that the foampump further comprises a filter member, one end of the filter member is fixedly connected to the03 08 23fixing member, and a filter net is disposed in the filter member.

9. A foam generating method of an all-plastic external foam pump, characterized in that:SI, pressing an actuator, so that the actuator moves toward an elastic member;S2, driving a fixing member to move toward the elastic member by the actuator;5 S3, driving a plunger to move toward the elastic member by the fixing member;S4, compressing the elastic member to deform the elastic member by the plunger, so that a gas in a cylinder body enters a liquid mixing portion;S5, driving a pulling rod to move toward a straw while one end of the plunger is located in a small cylinder of the cylinder body;10 S6, a liquid entering the liquid mixing portion through a gap between the plunger and thepulling rod;S7, a foam flowing out from the actuator.

10. Hie foam generating method of the all-plastic external foam pump according to claim 1, characterized in that the elastic member fully fills an inner space of the cylinder body.15

Images