WO2022000662A1

WO2022000662A1 - Pressing pump and liquid container

Info

Publication number: WO2022000662A1
Application number: PCT/CN2020/104809
Authority: WO
Inventors: 苏俊浩; 郑宇航; 张国金
Original assignee: 珠海智润护理用品有限公司
Priority date: 2020-06-30
Filing date: 2020-07-27
Publication date: 2022-01-06
Also published as: CN111846593A

Abstract

A pressing pump and a liquid container, the pressing pump comprising: a pump body (200); a pressing head (100), which is movably connected to the pump body (200); and an elastic piece (300), which is connected between the pump body (200) and the pressing head (100). When the pressing head (100) is pressed, the elastic piece (300) can provides a rebound force for the pressing head (100); and the pump body (200), the pressing head (100) and the elastic piece (300) are made of plastic. The pressing pump can reduce liquid contamination inside of the container while reducing the accumulation of outside dirt.

Description

A press pump and liquid container

technical field

The invention relates to the technical field of pump heads, in particular to a pressing pump and a liquid container.

Background technique

In the current life, foam skin care products and foam cleaning products are widely used, so a push pump that can spray foam by pressing was born. Metal springs are widely used in traditional push pumps, which are easy to use for a long time and can be used in liquid containers. The chemical reaction of the liquid will not only easily cause the spring to age, but also easily pollute the liquid by the harmful substances produced after the spring is corroded.

For this reason, the prior art proposes a foam pump. A helical plastic spring is arranged on the pressing head and the pump body to replace the metal spring in the traditional pressing pump. Since the spiral part of the spring is exposed, long-term use will cause external dust. And the accumulation of dirt such as hardened liquid will affect the use.

SUMMARY OF THE INVENTION

The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the present invention provides a pressing pump and a liquid container, which can reduce the accumulation of external dirt while reducing the liquid contamination in the container.

The pressing pump of the present invention includes: a pump main body; a pressing head, which is movably connected to the pump main body; an elastic sheet, which is connected between the pump main body and the pressing head, and when the pressing head is pressed, the elastic sheet can provide a rebound force for the pressing head; The pump body, pressing head and shrapnel are all made of plastic.

Further, one end of the pressing head connected to the pump main body is sleeved on the upper end of the pump main body, and the elastic sheet is arranged inside the pump main body.

Further, the elastic sheets are arranged in an annular shape, the outer ring of the elastic sheet is provided with a first abutting portion for abutting the pressing head, and the inner ring of the elastic sheet is provided with a second abutting portion for abutting against the pump body.

Further, the shrapnel is provided with avoidance holes, and the avoidance holes penetrate through the shrapnel along the axial direction of the shrapnel.

Further, the shrapnel is provided with avoidance holes, and the avoidance holes penetrate the shrapnel along the axial direction of the shrapnel.

Further, the shrapnel is provided with a plurality of avoidance holes, and the plurality of avoidance holes are distributed along the radial direction of the shrapnel.

Further, an escape groove is provided on the elastic sheet, and the escape groove extends along the circumferential direction of the elastic sheet.

Further, the elastic sheet is provided with a plurality of avoidance grooves, and the plurality of avoidance grooves are distributed along the circumferential direction of the elastic sheet.

Further, a plurality of escape grooves are provided on the elastic sheet, and the plurality of escape grooves are distributed along the radial direction of the elastic sheet.

The present invention also provides a liquid container, comprising: a bottle body for containing liquid, an opening is provided on the upper end of the bottle body; the above-mentioned pressing pump, the main body of the pump is arranged on the opening.

When the pressing pump of the present invention is applied, when the pressing head is pressed down, the liquid or foam can be ejected from the liquid ejection port of the pressing head, and the elastic sheet is elastically deformed at this time. Reset under the action of elastic force, because the pump body, pressing head and shrapnel are all made of plastic, compared with metal springs, the plastic parts have higher stability and are not easy to react with the liquid, causing harmful objects to precipitate and pollute the liquid; at the same time, the shrapnel The external structure is relatively simple, and it does not have the screw mechanism set on the plastic spring, so the external dust and hardening liquid are not easy to accumulate.

Additional aspects and advantages of the present invention will be set forth, in part, from the following description, and in part will be apparent from the following description, or may be learned by practice of the invention.

Description of drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of embodiments taken in conjunction with the accompanying drawings, wherein:

1 is a perspective view of a foam pump according to an embodiment of the present invention;

2 is a cross-sectional view of a foam pump according to an embodiment of the present invention;

FIG. 3 is a perspective view of an elastic sheet according to an embodiment of the present invention;

FIG. 4 is a cross-sectional view of an elastic sheet according to an embodiment of the present invention;

FIG. 5 is an axonometric view of another shrapnel according to an embodiment of the present invention;

6 is a cross-sectional view of another elastic sheet according to an embodiment of the present invention;

The above figures contain the following reference numerals.

标号 label		名称name
100100	按压头Press the head
200200	泵主体pump body

210210	外壳 shell
220220	气液混合腔Gas-liquid mixing chamber
230230	液泵室 Liquid pump room
240240	气泵室 air pump room
250250	液泵活塞 Liquid pump piston
260260	气泵活塞 Air pump piston
270270	通液管 liquid pipe
300300	弹片 shrapnel
310310	第一抵接部 first contact part
320320	第二抵接部 second contact part
330330	避让孔Avoid holes
340340	避让槽avoidance slot

detailed description

Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as a limitation of the present invention.

In the description of the present invention, it should be understood that the azimuth description, such as the azimuth or position relationship indicated by up, down, front, rear, left, right, etc., is based on the azimuth or position relationship shown in the drawings, only In order to facilitate the description of the present invention and simplify the description, it is not indicated or implied that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

In the description of the present invention, the meaning of several is one or more, the meaning of multiple is two or more, greater than, less than, exceeding, etc. are understood as not including this number, above, below, within, etc. are understood as including this number . If it is described that the first and the second are only for the purpose of distinguishing technical features, it cannot be understood as indicating or implying relative importance, or indicating the number of the indicated technical features or the order of the indicated technical features. relation.

In the description of the present invention, unless otherwise clearly defined, words such as setting, installation, connection should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

1 and 2, a pressing pump includes: a pump main body 200; a pressing head 100, which is provided on the pump main body 200; , the elastic sheet 300 can provide resilience for the pressing head 100 ; the pump body 200 , the pressing head 100 and the elastic sheet 300 are all made of plastic.

Applying the pressing pump of this embodiment, during use, when the pressing head 100 is pressed down, the liquid or foam can be ejected from the liquid ejection port of the pressing head 100. At this time, the elastic sheet 300 is elastically deformed. When the pressing head 100 is released, The pressing head 100 is reset under the action of the resilient force of the shrapnel 300. Since the pump body 200, the pressing head 100 and the shrapnel 300 are all made of plastic, the plastic parts are more stable than metal springs and are not easy to react with liquids. Causes harmful objects to separate out and contaminate the liquid; at the same time, the external structure of the shrapnel 300 is relatively simple, and does not have the screw mechanism set on the plastic spring, so external dust and hardened liquid are not easy to accumulate.

The plastic shrapnel 300 can be made of high-elasticity plastics known in the prior art, including styrene-based SBS, SIS, SEBS, SEPS, olefin-based TPO, TPV, diene-based TPB, TPI, vinyl chloride-based TPVC, TCPE , urethane TPU, ester TPEE, amide TPAE, organic fluorine TPF, silicone and vinyl and other known thermoplastic elastomer materials; these materials have good stability and resistance at room temperature. Corrosive properties.

It can be understood that the specific structures of the pump body 200 and the pressing head 100 may refer to the structures of the pressing pumps commonly used in the prior art, for example, the structures of the pressing pumps disclosed in CN111232419A.

As shown in FIG. 2 , in order to further prevent dirt from accumulating at the shrapnel 300 and enhance the appearance of the outside of the pressing pump, the end of the pressing head 100 connected to the pump body 200 is sleeved on the upper end of the pump body 200 , and the shrapnel 300 is arranged on the pump body. 200 inside; at this time, the shrapnel 300 is hidden inside the pressing head 100, and the shrapnel 300 cannot be observed without disassembling the pressing head 100. Compared with the prior art, the plastic spring is sleeved outside the pressing head 100. , which effectively increases the aesthetics of the appearance of the press pump.

As shown in FIG. 2 and FIG. 3 , in order to prevent the eccentric movement of the pressing head 100 during the pressing process, resulting in the blocking between the pressing head 100 and the pump body 200 , the shrapnel 300 is arranged in a ring shape, and the outer ring of the shrapnel 300 is provided with a spacer for abutting The first abutting portion 310 of the pressing head 100 and the inner ring of the elastic sheet 300 are provided with a second abutting portion 320 for abutting against the pump body 200; when the pressing head 100 is pressed down and the elastic sheet 300 is elastically deformed, the elastic sheet 300 can move along the The circumferential direction uniformly applies a resilient force to the pressing head 100 , so that the pressing head 100 can rebound along the axial direction of the elastic sheet 300 , thereby avoiding the jamming phenomenon of the pressing head 100 caused by the eccentric sliding of the pressing head 100 .

As shown in FIG. 3 and FIG. 4 , in order to ensure that the elastic sheet 300 can still maintain good elasticity after repeated elastic deformation and rebound, and is not prone to permanent deformation leading to weakened elasticity, an escape hole 330 can be opened on the elastic sheet 300, The avoidance hole 330 penetrates the spring piece 300 along the axial direction of the spring piece 300 ; when the spring piece 300 is deformed by the action of the pressing head 100 , the avoidance hole 330 can make the spring piece 300 deform uniformly, and avoid permanent deformation after rebound due to uneven deformation of the spring piece 300 . Case.

Among them, as shown in FIG. 3 and FIG. 4 , in order to increase the deformable range of the elastic sheet 300, a plurality of avoidance holes 330 are provided on the elastic sheet 300, and the plurality of avoidance holes 330 are distributed along the circumferential direction of the elastic sheet 300; The plurality of avoidance holes 330 are arranged to be distributed along the radial direction of the elastic sheet 300; or as shown in FIG. distributed in the same direction, and the avoidance holes 330 between the layers are dislocated along the radial direction of the elastic sheet 300 .

As shown in FIG. 4 , in order to facilitate the installation of the shrapnel 300, screw threads can be provided on the pump body 200, and the first abutting portion 310 can be grafted on the threads; wherein, in order to facilitate the installation of the shrapnel 300 on the threads, The thickness a of the shrapnel 300 can be smaller than the thread pitch of the thread; specifically, the diameter s of the avoidance hole 330 and the outer diameter D of the elastic body satisfy 0.01s<D<0.1s; within this range, the elasticity of the shrapnel 300 can be guaranteed and At the same time of increasing the strength, the deformable range of the elastic piece 300 is limited.

As shown in FIG. 5 , in order to increase the deformable range of the elastic sheet 300 and facilitate the manufacture of the elastic sheet 300 , the elastic sheet 300 is provided with an escape groove 340 , and the escape groove 340 extends along the circumferential direction of the elastic sheet 300 .

Wherein, as shown in FIG. 5 , a plurality of escape grooves 340 may be opened along the circumferential direction of the elastic sheet 300 .

As shown in FIG. 6 , a plurality of escape grooves 340 may also be provided in the radial direction of the elastic sheet 300; specifically, multiple sets of escape grooves 340 may be provided along the radial direction of the elastic sheet 300, and each circle is circumferentially distributed with multiple escape grooves 340. Avoid slot 340 .

As shown in FIG. 6 , in order to facilitate the installation of the shrapnel 300, a screw thread can be provided on the pump body 200, and the first abutting portion 310 can be grafted on the screw thread; wherein, in order to facilitate the installation of the shrapnel 300 on the screw thread, The thickness a of the shrapnel 300 can be smaller than the pitch of the threads; specifically, the groove width s of the avoidance groove 340 and the outer diameter D of the elastic body satisfy 0.01s<D<0.1s; within this range, the elasticity of the shrapnel 300 can be guaranteed At the same time of increasing the strength, the deformable range of the elastic sheet 300 is limited.

It can be understood that a plurality of escape holes 330 and escape grooves 340 can be provided on the elastic sheet 300 at intervals as required.

This embodiment also provides a liquid container, including: a bottle body for containing liquid, an opening is provided at the upper end of the bottle body; the above-mentioned pressing pump, the pump body 200 is disposed on the opening.

Specifically, as shown in FIG. 2 , the pump body 200 includes a casing 210 that can be installed at the opening of the container, the pressing head 100 is arranged on the upper end of the casing 210 , the elastic sheet 300 is arranged between the casing 210 and the pressing head 100 , and is arranged in the pressing head 100 There is a foam channel, the upper end of the casing 210 is provided with a gas-liquid mixing chamber 220, the lower end of the casing 210 is provided with a liquid pump chamber 230 and an air pump chamber 240, the gas-liquid mixing chamber 220 is communicated with the foam channel, and the gas-liquid mixing chamber 220 is respectively connected with the liquid. The pump chamber 230 is communicated with the air pump chamber 240. The liquid pump chamber 230 is provided with a liquid pump piston 250, and the air pump chamber 240 is provided with an air pump piston 260. The pressing head 100 can move downward to contact the liquid pump piston 250 and the air pump piston 260. The liquid pump piston 250 and the air pump piston 260 are moved downward.

Wherein, the liquid pump chamber 230 is connected with a liquid pipe 270. The liquid pipe 270 is inserted into the bottom of the inner cavity of the bottle to extract liquid from the circumference of the inner cavity. The liquid pipe 270 is set in a spiral shape, so that the liquid pipe 270 can be co-extruded by the pump body 200 and the bottle body, so that the opening at the bottom end of the liquid pipe 270 is firmly attached to the bottom of the inner wall of the bottle, and the bottle body is fully utilized. liquid in it.

For other detailed structures of the press pump, reference may be made to the structure of the liquid pump disclosed in CN111232419A, and other disclosed pump body structures that have been widely used in the prior art may also be used as required.

The embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned embodiments, and within the scope of knowledge possessed by those of ordinary skill in the art, various Variety.

Claims

A press pump, characterized in that, comprising:

pump body (200);

a pressing head (100), movably connected to the pump body (200);

An elastic sheet (300) is connected between the pump body (200) and the pressing head (100), and when the pressing head (100) is pressed, the elastic sheet (300) can be the pressing head ( 100) Provide resilience;

The pump body (200), the pressing head (100) and the elastic sheet (300) are all made of plastic.
The pressing pump according to claim 1, characterized in that, one end of the pressing head (100) connected to the pump main body (100) is sleeved on the upper end of the pump main body (200), and the elastic sheet (300) is provided with Inside the pump body (200).
The pressing pump according to claim 2, characterized in that the elastic sheet (300) is arranged in an annular shape, and an outer ring of the elastic sheet (300) is provided with a first abutting portion for abutting against the pressing head (100). (310), the inner ring of the elastic piece (300) is provided with a second abutting portion (320) for abutting against the pump body (200).
The press pump according to claim 3, characterized in that the elastic sheet (300) is provided with an escape hole (330), and the escape hole (330) penetrates the elastic sheet along the axial direction of the elastic sheet (300). (300).
The press pump according to claim 4, characterized in that, the elastic sheet (300) is provided with a plurality of the avoidance holes (330), and the plurality of the avoidance holes (330) are along the direction of the elastic sheet (300). Circumferential distribution.
The pressing pump according to claim 4, characterized in that, the elastic sheet (300) is provided with a plurality of the avoidance holes (330), and the plurality of the avoidance holes (330) are along the direction of the elastic sheet (300). radial distribution.
The pressing pump according to claim 3, wherein an escape groove (340) is provided on the elastic sheet (300), and the escape groove (340) extends along the circumferential direction of the elastic sheet (300).
The pressing pump according to claim 7, characterized in that, the elastic sheet (300) is provided with a plurality of the avoidance grooves (340), and the plurality of the avoidance grooves (340) are arranged along the direction of the elastic sheet (300). Circumferential distribution.
The pressing pump according to claim 7, characterized in that, the elastic sheet (300) is provided with a plurality of the avoidance grooves (340), and the plurality of the avoidance grooves (340) are arranged along the direction of the elastic sheet (300). radial distribution.
A liquid container, characterized in that, comprising:

The bottle body is used for containing liquid, and the upper end of the bottle body is provided with an opening;

The pressing pump according to any one of claims 1 to 9, wherein the pump main body (200) is provided at the upper end of the opening.