KR102300155B1 - Resources-recyclable, Small Hand-operated Pump - Google Patents

Abstract

The present invention provides a manual pump comprising: an actuator; a housing; a closure; a chaplet; a shaft; a stem; a piston; a compression spring; and an opening and closing member based on a specific structure, wherein at least main components are made of a polymer resin, thereby providing excellent resource recyclability.

Description

Resources-recyclable, Small Hand-operated Pump

The present invention relates to a small hand-operated pump capable of recycling resources that can be installed and used in cosmetic containers, and more particularly, based on a specific structure, main parts are made of a polymer resin, so that not only excellent operational performance but also recyclability at the time of disposal It relates to possible small hand-operated pumps.

A small hand-operated pump is widely used in cosmetic containers that discharge a predetermined amount of liquid or emulsion contents due to their convenience. In particular, the manual pump is widely used due to the feature that it can be easily discharged and used by a predetermined amount while keeping the contents in a container, and related technologies have been steadily developed therefor.

Looking at the main configuration of the conventional small hand pump, the housing constituting the exterior of the pump, the closure used to mount the housing to the container, the stem communicating with the outlet and moving up and down along the housing, the vertical movement of the stem A shaft that guides and connects the stem to the operation button, a piston that moves up and down along the inner wall of the housing while mounted on the stem, a metal spring mounted on the lower inner surface of the housing, and a ball that opens and closes the inlet at the bottom of the housing including etc.

However, the manual pump of this structure has a problem in terms of resource recycling.

Specifically, in recent years, population growth and economic development are increasing the use of resources, and thus environmental pollution due to the increase in waste as well as depletion of resources becomes a big problem, so that limited resources can be used more effectively and waste The need for recycling of resources aimed at reducing environmental pollution by reduction is very high.

In view of this aspect, the conventional hand-operated pump generally has low recyclability of resources. The biggest factor that degrades the resource recyclability of a manual pump is that metal and plastic resin parts with completely different properties are embedded inside the small-sized pump structure, and it is difficult to separate them due to the small and compact structure. . Moreover, the overall low price of hand pumps tends to make the cost of separating parts for recycling purposes unreasonable.

Accordingly, there is a high need for a new technology capable of solving these problems.

An object of the present invention is to solve the problems of the prior art as described above and the technical problems that have been requested from the past.

After repeated in-depth research and various experiments, the inventor of the present application developed a hand-operated pump consisting of a specific structure in which the main parts, preferably all parts, can be implemented with polymer resin, and this hand-operated pump itself operates excellently. In addition to exhibiting the performance, it was confirmed that the polymer resin can be recycled as a polymer resin by melting it as it is without separation of parts even when disposing, and completed the present invention.

Therefore, the hand pump according to the present invention,

an actuator having a discharge port formed therein and mounted on the upper end of the shaft in a state in which the discharge port is communicated;

a housing constituting the exterior of the pump;

a closure coupled to the upper end of the housing and mounting the housing to the container;

a chaplet fixed to the inner surface of the housing and guiding the vertical movement of the shaft through the vertical hollow portion;

a shaft that moves up and down in the vertical hollow part of the shaft with the upper end connected to the actuator;

a stem having a horizontal passage communicating with the inner space of the housing and a vertical passage communicating with the horizontal passage and connected to the lower end of the shaft in communication with the stem;

a piston which opens and closes the horizontal passage of the stem while moving up and down along the inner wall of the housing;

an opening and closing member made of a polymer resin located at the lower end of the inner space of the housing and opening and closing the lower inlet of the housing during pumping; and

a compression-type coil spring that provides upward restoring force to the stem during pumping and is mounted between the lower end of the stem and the opening/closing member in the inner space of the housing, and made of a polymer resin;

It consists of including

The hand-operated pump according to the present invention has a specific structure in which major parts such as actuators, springs, opening and closing members, etc. can be formed with a polymer resin, thereby exhibiting excellent operating characteristics, and disposing of resources due to the same or similarity of constituent materials It has a very high recyclability.

In one specific example, the compression type coil spring has a wire made of a polymer resin in a coil shape, and assists spring elasticity when compressed in at least one portion between repetitive winding parts forming a pitch. It may be a structure in which an elastic hinge is located.

In the above structure, the pitch means the distance between the winding crest and the winding crest in the winding parts in which the wire is repeatedly rolled round, and the elastic hinge is positioned in a shape connecting some parts of the wire on the pitch.

In general, a compression-type coil spring made of a polymer resin tends to have a small elastic restoring force because the elastic modulus of the material is relatively small compared to a compression-type coil spring made of a metal material. For this reason, it may be difficult for the actuator to return to its original position due to high viscosity of the contents after pumping is performed by applying a downward force to the actuator.

On the other hand, in the above structure, the elastic hinge assists the spring elasticity of the compression-type coil spring made of such a polymer resin by its own elastic force, thereby preventing the aforementioned problems.

In order to exhibit this effect more efficiently, the elastic hinge has, for example, the central elastic bent portion of the compression-type coil spring in the central axis direction, the outward direction of the central axis, or both ends while facing in the winding direction of the wire. They may be of a structure in which they are connected to a wire.

Such an elastic hinge, as described above, is formed in at least one portion between the windings, and in one specific example, between the windings in an alternating manner to provide spring elasticity of a sufficient size. It may be a structure in which a plurality are located.

Compression coil spring made of polymer resin can also increase its own spring elasticity, for example, by forming the vertical cross-sectional shape of the wire into a rectangular or square structure, in a limited space, with a larger cross-sectional area than a circular vertical cross-sectional shape can do.

The average vertical cross-sectional size of the elastic hinge can be appropriately adjusted in consideration of various factors such as the type of polymer resin forming the compression-type coil spring, the size of the vertical cross-sectional area of the compression-type coil spring, one-time discharge amount and viscosity of the contents. , for example, from 2% to 50% of the size of the vertical cross-sectional area of the wire.

Such an elastic hinge may be formed together when the wire is formed, or may be formed separately from the wire and then added in a manner that is attached to the wire.

The wire and the elastic hinge of the compression type coil spring may be made of, for example, one or more materials selected from the group consisting of a silicone resin, a polypropylene (PP) resin, and a polyketone (POK) resin, but are limited only to these it is not

In one specific example, the actuator comprises:

a first downwardly extending portion communicating with the discharge port and fastened to the upper end of the shaft; and

a second downwardly extending portion positioned outside the first downwardly extending portion and having one or more bridges connected therebetween;

It may be a structure containing

The first downwardly extending portion and the second downwardly extending portion may preferably be cylindrical structures forming concentric circles in a horizontal cross-section.

Corresponding to this structure of the actuator, the shaft may be, for example,

a cylindrical body having a vertical hollow portion for guiding the vertical movement of the shaft;

a side fastening portion positioned at a lower portion of the cylindrical body and extending outwardly so as to be fixed to the inner surface of the housing; and

a rotation lock formed in a cut-out shape on the upper end of the cylindrical body, and a vertical groove cut downward from one end of the rotation jaw in the height direction of the cylindrical body and into which the bridge of the actuator can be introduced;

It may be a structure containing

Therefore, when the pumping operation is not performed, the bridge of the actuator is positioned on the rotation jaw of the rotation lock to prevent downward movement of the actuator, thereby preventing the pump user from accidentally discharging the contents.

On the other hand, if the bridge is positioned on the vertical groove of the rotation lock by rotating the actuator, when a downward force is applied to the actuator, the bridge can move downward along the vertical groove, so that the downward movement of the actuator and the shaft associated therewith This makes it possible to perform pumping.

Preferably, by a structure in which a pair of rotation locks are symmetrically formed about a central vertical axis of the cylindrical body, the possibility of damage to the bridge is minimized by dispersing the downward force erroneously applied in the locked state and pumping A pair of bridges can be guided to move stably downward along a pair of vertical grooves in a symmetrical position, thereby enabling balanced pumping.

In one specific example, the opening and closing member may be formed in the shape of a ball.

In another specific example, the opening and closing member is formed in the form of a disk having a predetermined thickness, and an outer ring that is in close contact with the inner surface of the upper end of the lower inlet in the housing, an opening and closing plate for opening and closing the lower inlet, and the opening and closing plate may be formed of two or more bridges elastically connecting to the inner side of the outer ring.

Preferably, all parts of the manual pump, including the ball-shaped opening and closing member and the disc-shaped opening and closing member, may be made of a polymer resin.

The polymer resin that can be used for the main parts, preferably all parts, of the hand pump of the present invention may include, but is not limited to, polypropylene, polyethylene, polyketone, silicone resin, and the like. In one example, actuators, closures, shaplets, housings, etc. can be made of polypropylene, and shafts, stems, compression coil springs, etc., which need to be relatively stiffer in comparison, are made of polyketone or polypropylene. may be manufactured, and a piston, an opening/closing member, etc. requiring adhesion may be made of polyethylene or polypropylene.

As described above, the small hand-operated pump according to the present invention is formed in a specific structure in which the main parts constituting the pump, preferably, all parts can be made of a polymer resin, while exhibiting excellent operating characteristics of the pump itself. , when disposing of the pump, it can be recycled as a polymer resin by melting it as it is without separating the parts separately through decomposition work, so it has excellent recyclability of resources and the effect of suppressing environmental pollution by reducing waste.

1 is a vertical cross-sectional view of a hand pump according to an embodiment of the present invention;
2 is a perspective view of a shaplette according to an embodiment constituting a hand-operated pump of the present invention;
3 is a perspective view according to the angle change of the compression type coil spring according to one embodiment constituting the hand pump of the present invention;
Fig. 4 is a plan view with respect to the central axis of the compression type coil spring of Fig. 3 and also plan views from a 90 degree side thereof;
Fig. 5 is a vertical cross-sectional view in a relaxed state of the compression type coil spring of Fig. 3 and a vertical cross-sectional view in a compressed state of a portion thereof;
6 is a plan view of an opening/closing member according to another embodiment used in the hand pump of the present invention;
7A and 7B are a perspective view and a cross-sectional view of a state in which the opening and closing member of FIG. 6 is combined with a compression type coil spring;
Fig. 8 is a vertical cross-sectional view of a hand pump according to another embodiment of the present invention in which the opening and closing member of Fig. 6 is used;
Fig. 9 is a vertical cross-sectional view showing a state in which the actuator is rotated to convert the hand pump of Fig. 1 into an unlocking mode;
10 to 12 are vertical cross-sectional views illustrating a series of processes of pumping the manual pump of FIG. 1 .

Hereinafter, the present invention will be further described with reference to the drawings according to embodiments of the present invention, but the scope of the present invention is not limited thereto.

1 is a vertical cross-sectional view of a hand-operated pump according to an embodiment of the present invention, and FIG. 2 is a perspective view of a splitter according to an embodiment constituting the hand-operated pump of the present invention, FIG. 3 5 to 5 are various perspective and cross-sectional views of the compression type coil spring according to an embodiment constituting the hand pump of the present invention.

For easy understanding of the structure of the compression type coil spring, FIGS. 3 (A) and (B) show a rotation state of approximately 90 degrees, and in FIG. 4, a plan view (A) of the central axis of the compression type coil spring ) and its top views (B, C) at its 90 degree sides, and in FIG. have.

1 to 5 together, the manual injection pump 1000 according to the present invention includes an actuator 100, a housing 200, a closer 300, a shaft 400, a shaft 500, and a stem ( 600 ), a piston 700 , a compression type coil spring 800 , and an opening/closing member 900 .

The actuator 100 has a discharge port 110 extending in one direction, and is mounted on the upper end of the shaft 500 in a state in which the discharge port 110 communicates.

In addition, the actuator 100 communicates with the discharge port 110 and includes a first downward extension 120 coupled to the upper end of the shaft 500 , and a first downward extension located outside the first downward extension 120 . It includes a second downwardly extending part 130 to which one or more bridges 132 are connected between the extended part 120 and the extended part 120 .

The housing 200 constitutes the exterior of the pump 1000 and has a cylindrical structure in which the width is gradually narrowed downward.

The closure 300 is fastened to the upper end of the housing 200 and has a structure in which a thread for mounting the housing 200 to a container (not shown) is formed on the inner surface.

The shaft 500 is fixed to the upper inner surface of the housing 200 and guides the vertical movement of the shaft 500 through the vertical hollow part 410 .

Specifically, referring to FIG. 2 , the shaft 500 has a cylindrical body 420 in which a vertical hollow 410 for guiding the vertical movement of the shaft 500 is formed, and a lower portion of the cylindrical body 420 . and a side fastening part 430 extending outwardly to be positioned and fixed to the inner surface of the housing 200 , and a rotation locking part 440 for controlling the operation of the pump 1000 in a rotational manner.

The rotation lock 440 is cut downward in the height direction of the cylindrical body 420 from the rotation jaw 442 formed in a cut-out shape on the upper end of the cylindrical body 420, and one end of the rotation jaw 442. and consists of a vertical groove 444 into which the bridge 132 of the actuator 100 can be introduced.

A pair of rotation locks 440 are symmetrically formed with respect to the central vertical axis of the cylindrical body 420 .

Referring back to FIG. 1 and the like, the shaft 500 has an upper end connected to the actuator 100 , specifically, the first downward extension 120 of the actuator 100 , the shaft 500 has a vertical hollow The unit 410 moves up and down. That is, it moves downward according to the downward force applied to the actuator 100 during pumping, and moves together when the actuator 100 moves upward by the restoring force of the compression type coil spring 800 .

The stem 600 is connected in a state of being in communication with the lower end of the shaft 500, and a horizontal passage 610 communicating with the housing inner space S, and a vertical passage 620 communicating with the horizontal passage 610. is formed

The piston 700 opens and closes the horizontal passage 610 of the stem 600 while moving up and down along the inner wall of the housing 200 .

The compression type coil spring 800 is mounted between the lower end of the stem 600 and the opening and closing member 900 while positioned in the housing inner space S, and provides upward restoring force to the stem 600 during the pumping process.

The ball-shaped opening/closing member 900 is located at the lower end of the housing inner space S, and serves to open and close the housing lower inlet 210 during pumping.

The structure of the compression type coil spring 800 will be described in more detail with reference to FIGS. 3 to 5 as follows.

The compression type coil spring 800 has a wire 810 made of a polymer resin in a coil shape, and an elastic hinge that assists spring elasticity when compressed between the repetitive winding parts 820 and 821 forming the pitch P. Fields 830 are located. Here, the pitch P is the distance between the winding crest and the winding crest in the winding parts 820 and 821 in which the wire 810 is repeatedly rolled in a round shape while forming a coil shape.

In the elastic hinge 830 of the drawing, the central elastic bent portion is directed in the winding direction of the wire 810 and both ends are connected to the wire 810, so that the spring elasticity of sufficient size can be provided. A plurality of windings 820 and 821 are positioned between the windings 820 and 821 in an alternating arrangement. However, it goes without saying that the number and spacing of the elastic hinges 830 may be variously changed depending on conditions.

Since the wire 810 has a vertical cross-sectional shape 812 formed in a rectangular or square structure, it is possible to provide relatively high spring elasticity by a larger cross-sectional area than a circular vertical cross-sectional shape in a limited setting space.

Since the elastic hinge 830 serves to provide auxiliary spring elasticity, its vertical cross-sectional area may be relatively smaller than that of the wire 810, for example, 50% or less.

As shown in FIG. 5, when a compressive force is applied to the compression type coil spring 800, while changing from the shape of FIG. 5(A) to the shape of FIG. 5(B), the pitch, which is the winding interval of the wire 810, is P ₁ to P ₂ is narrowed, and the elastic hinge 830 also has a high elastic force accumulated as the elastic bent portion in the center is further bent.

The opening and closing member 900 used in the manual pump 1000 of FIG. 1 is a ball shape, but it goes without saying that opening and closing members of various shapes or structures may be used. One such example is provided in Figures 6-8.

Specifically, FIG. 6 is a plan view of an opening/closing member 901 according to another embodiment used in a manual pump of the present invention, and in FIGS. 7A and 7B, the opening/closing member 901 is combined with a compression type coil spring. A perspective view and a cross-sectional view of the state are shown, respectively, and FIG. 8 is a vertical cross-sectional view of a manual pump 1001 according to another embodiment of the present invention in which an opening/closing member 901 is used. For the convenience of understanding the state in which the opening and closing member 901 is combined with the compression type coil spring, FIGS. 7A and 7B are shown in a perspective view and a cross-sectional view in a state rotated by 180 degrees.

6 to 8 together, the opening and closing member 901 is made of a disk shape having a predetermined thickness as a whole, and an outer ring 911 that is in close contact with the upper inner surface of the lower inlet 210 in the housing 200, It consists of an opening and closing plate 921 for opening and closing the lower inlet 210 , and two or more bridges 931 , elastically connecting the opening and closing plate 921 to the inside of the outer ring 911 . Therefore, in response to the pressure change of the housing inner space (S) during the operation of the manual pump 1001, the opening and closing plate 921 opens and closes the lower inlet 210 while elastically moving up and down from the outer ring 911 do. In FIG. 8, when the pressure of the housing inner space (S) is lowered during the pumping process, the opening/closing plate 921 in FIG. 6 moves upward while the opening/closing plate 921 is spaced apart from the lower inlet 210, and the contents ( (not shown) can be seen flowing into the housing inner space (S).

The opening/closing member 901 having this structure may be introduced into the housing 200 by being fixed to the end of the compression-type coil spring 800, so that the assembly process of the manual pump 1001 may be easier, and a polymer resin may be used. can be manufactured.

In relation to the operation of the hand pump 1000 of FIG. 1 , FIG. 9 is a vertical cross-sectional view illustrating a state in which the actuator 100 is rotated to convert the hand pump 1000 to an unlocking mode, FIGS. 10 to 12 . Vertical cross-sectional views each showing a series of pumping of the hand pump 1000 are provided.

With respect to the operation of the hand pump 1000, it will be described below with reference to FIGS. 9 to 12 together with FIGS. 1 to 5 .

In the lock holding mode, the bridge 132 of the actuator 100 is positioned on the rotation jaw 442 of the rotation lock portion 440 of the splitter 400 and does not move downward even when a downward force is applied.

In this state, as shown in FIG. 9 , when the actuator 100 is rotated, the bridge 132 moves from the rotary jaw 442 to the vertical groove 444 and downward movement is possible, and the unlock mode is switched.

Next, when a downward force is applied to the actuator 100 as shown in FIG. 10 , the shaft 500 moves downward together with the actuator 100 , and the contact portion between the piston 700 and the stem 600 is spaced apart. The contents in the housing inner space (S) are introduced into the vertical passage (620) through the horizontal passage (610).

The piston 700 is composed of an outer surface portion 710 in close contact with the inner surface of the housing 200 and an inner surface portion 720 in close contact with the outer surface of the shaft 500 , the relatively high adhesion of the outer surface portion 710 . Due to this, in the process of downward movement of the shaft 500, the separation of the close contact area occurs as described above, and the inflow of the contents is possible.

The downward force is continuously applied as shown in FIG. 11 , and in the process, the contents are discharged to the outside via the outlet 110 of the actuator 100 through the shaft 500 . In this process, the compression type coil spring 800 located at the lower end of the stem 600 is compressed to the maximum.

When the downward force applied to the actuator 100 is removed, as shown in FIG. 12 , as the compression coil spring 800 is relaxed by the restoring force, the actuator 100 and the shaft 500 move upward, and in this process The boundary portion between the piston 700 and the stem 600 is tightly closed and the contents are introduced into the cylinder inner space S through the separation gap of the opening and closing member 900 in order to compensate for the lowered internal pressure.

Although described above with reference to the embodiments of the present invention, those of ordinary skill in the art to which the present invention pertains will be able to make various applications and modifications within the scope of the present invention based on the above contents.

100: actuator
200: housing
300: closure
400: Shaplet
500: shaft
600: stem
700: piston
800: compression type coil spring
900, 901: opening and closing member
1000, 1001: hand-operated injection pump

Claims (13)

an actuator having a discharge port formed therein and mounted on the upper end of the shaft in a state in which the discharge port is communicated;
a housing constituting the exterior of the pump;
a closure coupled to the upper end of the housing and mounting the housing to the container;
a chaplet fixed to the inner surface of the housing and guiding the vertical movement of the shaft through the vertical hollow portion;
a shaft that moves up and down in the vertical hollow part of the shaft with the upper end connected to the actuator;
a stem having a horizontal passage communicating with the inner space of the housing and a vertical passage communicating with the horizontal passage being formed and connected to the lower end of the shaft in communication with the stem;
a piston which opens and closes the horizontal passage of the stem while moving up and down along the inner wall of the housing;
an opening and closing member made of a polymer resin located at the lower end of the inner space of the housing and opening and closing the lower inlet of the housing during pumping; and
a compression-type coil spring that provides upward restoring force to the stem during pumping and is mounted between the lower end of the stem and the opening/closing member in the inner space of the housing, and made of a polymer resin;
contains,
In the compression type coil spring, a wire made of a polymer resin has a coil shape, and an elastic hinge that assists spring elasticity during compression is positioned at at least one portion between repetitive winding parts forming a pitch. Features a hand-operated pump. delete According to claim 1, wherein the elastic hinge has a structure in which both ends are connected to the wire while the elastic bending portion of the center is directed in the central axis direction of the compression type coil spring, the outward direction of the central axis, or the winding direction of the wire A hand-operated pump, characterized in that. The manual pump according to claim 1, wherein a plurality of the elastic hinges are positioned between the windings in an alternating arrangement. The hand pump according to claim 1, wherein the wire has a rectangular or square structure in a vertical cross section. The hand pump according to claim 1, wherein the average vertical cross-sectional area of the resilient hinge is in the range of 2% to 50% of the vertical cross-sectional area of the wire. The manual pump according to claim 1, wherein the compression coil spring is made of at least one material selected from the group consisting of silicone resin, polypropylene (PP) resin, and polyketone (POK) resin. According to claim 1, wherein the actuator,
a first downwardly extending portion communicating with the discharge port and fastened to the upper end of the shaft; and
a second downwardly extending portion positioned outside the first downwardly extending portion and having one or more bridges connected therebetween;
A hand-operated pump comprising a. The method of claim 1, wherein the splitter comprises:
a cylindrical body having a vertical hollow portion for guiding the vertical movement of the shaft;
a side fastening portion positioned at a lower portion of the cylindrical body and extending outwardly so as to be fixed to the inner surface of the housing; and
a rotation lock formed in a cut-out shape on the upper end of the cylindrical body, and a vertical groove cut downward in a height direction of the cylindrical body from one end of the rotation jaw and into which a bridge of an actuator can be introduced;
A hand-operated pump comprising a. 10. The hand pump according to claim 9, wherein a pair of rotation locks are symmetrically formed about a central vertical axis of the cylindrical body. The manual pump of claim 1, wherein the opening/closing member has a ball shape. The opening and closing member according to claim 1, wherein the opening/closing member has a disk shape having a predetermined thickness, and an outer ring that is in close contact with the upper inner surface of the lower inlet in the housing, an opening/closing plate for opening and closing the lower inlet, and the opening/closing plate Manual pump, characterized in that consisting of two or more bridges elastically connecting the inner side of the outer ring. The hand pump according to claim 1, wherein all parts of the hand pump are made of a polymer resin.

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