KR20210047557A - Pump structure with spring made of synthetic resin - Google Patents

Abstract

The present invention relates to a pump structure with a synthetic resin spring, which, in a pump structure that is connected to the push button and discharges the contents contained in the container body to the outside while pumping is operated by the pressurization of the push button, comprises the spring for providing an elastic force to the pump, wherein the spring is made of a synthetic resin, and consists of an upper support and a lower support, and a side wall that is compressed or restored by pressing the push button in a state in which the upper and lower supports are connected.

Description

Pump structure with spring made of synthetic resin

The present invention relates to a pump structure having a synthetic resin spring, and more particularly, by changing the sidewall structure of the synthetic resin spring, the repulsive force is further improved, and through this, a synthetic resin spring having a stable and smooth pumping operation and manufacturing cost reduction is possible. It relates to the structure of the pump.

In general, a pump container is configured to discharge the contents to the outside through a pumping action of a pump coupled to the upper part of the container body, and the container body in which the contents are stored, and the container body is installed on the upper part of the container body to vacuum the inside of the container body. It consists of a pump that makes it into a state and pulls up the contents by a pumping action, and a pressure button that is located at the top of the pump and moves up and down according to user pressure, and transfers pressure to the pump.

Such a pump performs a pumping action so that the contents stored in the container body are discharged to the outside.The pump includes a housing constituting the exterior of the pump, a fixed bushing fixedly coupled to the upper portion of the housing, and vertically within the housing. It consists of a moving piston support, a piston fitted outside of the piston support and vertically moving together with the piston support, a stem coupled to an upper portion of the piston support and pressed by a pressure button, and a spring supporting the stem elastically. , As the pump is pumped by the pressurization of the pressurizing button, the fixed amount of contents is discharged to the outside.

However, the conventional pump has a problem of increasing the manufacturing cost of the pump because the spring is made of a metal material, and since the entire structure of the pump is made of a different material of synthetic resin and metal, it has to be separated and disposed of for recycling. And, due to this, there is a problem that recycling is not easy.

In order to solve this problem, a pump dispenser having a synthetic resin spring has been disclosed in Korean Patent Laid-Open Publication No. 10-2004-0062305 (hereinafter referred to as “prior art”).

The prior art includes a head having a discharge hole formed therein and pressed by a user; A shaft connected to a lower portion of the head and having a guide hole connected to the discharge hole; A housing accommodating the shaft inside and having an inlet hole through which the contents are introduced; A pump dispenser installed under the shaft, provided with a guide means for guiding the contents inside the housing to the guide hole as the head is pressed, and for discharging the liquid contents inside the container; A spring having an upper end supported by a bottom surface of the guide means, a lower end supported at an inner lower side of the housing, having an elastic force to press the guide means pressed by the head upward, and formed of a synthetic resin material; In addition, a plurality of protruding protrusions from the inner side of the housing to the center are formed so that the lower end of the spring is accommodated inside to form a certain gap between the inner side of the housing, and a support jaw over which the lower end is covered is formed in the middle part Consists of including four ribs.

However, in the prior art, since a synthetic resin spring is installed inside the cylinder to support the lower portion of the stem (guide means), it is compressed and restored up and down. There was a problem that stable pumping operation was difficult.

In addition, the prior art has formed a protrusion protruding outward from the central portion of the spring in order to prevent deformation due to the repetitive contraction and expansion of the synthetic resin spring, which complicates the structure of the synthetic resin spring and increases the cost. There was a problem that caused it.

In order to solve this problem, a spring structure of a pumping container has been disclosed in Korean Patent Publication No. 10-2016-0097607.

The prior art is a spring structure of a pumping type container that is coupled to a lower portion of the button unit and surrounds a stem that moves together according to the vertical movement of the button unit and provides an elastic force in the upward direction to enable repeated pumping of the pumping member through the button unit. , The spring is made of a synthetic resin material, and is connected between the ring-shaped lower support and the upper support, and the lower support and the upper support to be elastically deformed according to whether the button is pressed, and to induce a pumping operation of the pumping member. It is configured to include a pair of elastic bodies made of a spiral.

However, the prior art is a structure in which a pair of thin spiral elastic bodies connect and support the upper and lower supports, and the spiral elastic body is inclined to one side at the same time by pressing a button, and then lying down and restored. Compared to the conventional metal spring, there was a limit in which the repulsive force (resilient force) was lowered.

Republic of Korea Patent Publication No. 10-2004-0062305 (2004. 07. 07. Announcement) Republic of Korea Patent Publication No. 10-2016-0097607 (published on August 18, 2016)

The present invention was devised to solve the above problems, and by variously changing the sidewall structure connecting the upper support and the lower support of the synthetic resin spring to further improve the repulsion force, the pumping operation by pressing the push button is stable. The purpose of this is to provide a pump structure having a synthetic resin spring that is made smoothly and can reduce manufacturing costs.

The present invention is a pump structure connected to a push button to discharge contents contained in a container body to the outside while being pumped by a pressurization of the push button, comprising a spring providing an elastic force to the pump, wherein the spring is made of synthetic resin It provides a pump structure having a synthetic resin spring, characterized in that the upper support and the lower support, and a side wall that is compressed or restored by pressing a push button in a state in which the upper support and the lower support are connected to each other.

In addition, the side wall of the spring formed of the synthetic resin material is connected to the upper support and is inclined toward the inside of the spring and extended as a first inclined part, and the second inclined part connected to the lower support and inclined toward the inside of the spring. It characterized in that it is made.

In addition, a spiral groove is formed along an operating direction of the pump at the outer periphery of the side wall of the spring formed of the synthetic resin material, and a convex portion having a curved surface is formed between the spiral grooves.

In addition, the side wall of the spring formed of the synthetic resin material is formed to be convex outward, and at least one elastic hole is formed on one side thereof.

In addition, the side wall of the spring formed of the synthetic resin material is composed of a first connector connected to the upper and lower supports, and a second connector connecting each of the first connectors, and between the second connector and the upper and lower supports It characterized in that the elastic space is formed.

According to an embodiment of the present invention, by variously changing the structure of the side wall connecting the upper support and the lower support of the synthetic resin spring to further improve the repulsive force, the pumping operation by pressing the push button is made more stable and smooth. , It has the effect of reducing manufacturing cost.

1 is a perspective view of a pump structure according to a first embodiment of the present invention.
2 is an exploded perspective view of a pump structure according to a first embodiment of the present invention.
3 is a cross-sectional view of a pump structure according to a first embodiment of the present invention.
4 is a cross-sectional view illustrating a state in which a push button is pressed according to a first embodiment of the present invention.
5 is a cross-sectional view illustrating a state of releasing a pressurization of a push button according to the first embodiment of the present invention.
6A and 6B are perspective and cross-sectional views of a synthetic resin spring according to a first embodiment of the present invention.
7A and 7B are perspective and cross-sectional views of a synthetic resin spring according to a second embodiment of the present invention.
8A and 8B are perspective and cross-sectional views of a synthetic resin spring according to a third embodiment of the present invention.
9A and 9B are perspective and cross-sectional views of a synthetic resin spring according to a fourth embodiment of the present invention.

The following detailed descriptions of the present invention are embodiments in which the present invention may be practiced, and reference is made to the accompanying drawings shown as examples of the corresponding embodiments. These embodiments will be described in detail enough for those skilled in the art to practice the present invention. It should be understood that the various embodiments of the present invention are different from each other, but need not be mutually exclusive. For example, specific shapes, structures, and characteristics described herein may be implemented in other embodiments without departing from the spirit and scope of the present invention in relation to one embodiment. In addition, it should be understood that the location or arrangement of individual components in each described embodiment may be changed without departing from the spirit and scope of the present invention.

Accordingly, the detailed description to be described below is not intended to be taken in a limiting sense, and the scope of the present invention is limited only by the appended claims, along with all scopes equivalent to those claimed by the claims, if appropriately described. Like reference numerals in the drawings refer to the same or similar functions over several aspects.

The terms used in the present invention have been selected from general terms that are currently widely used while considering functions in the present invention, but this may vary according to the intention or precedent of a technician working in the field, the emergence of new technologies, and the like. In addition, in certain cases, there are terms arbitrarily selected by the applicant, and in this case, the meaning of the terms will be described in detail in the description of the corresponding invention. Therefore, the terms used in the present invention should be defined based on the meaning of the term and the overall contents of the present invention, not a simple name of the term.

In the present invention, when a part "includes" a certain component, it means that other components may be further included rather than excluding other components unless otherwise stated.

A pump structure having a synthetic resin spring according to the first to fourth embodiments of the present invention will be described with reference to FIGS. 1 to 9.

1 is a perspective view of a pump structure according to a first embodiment of the present invention, FIG. 2 is an exploded perspective view of a pump structure according to a first embodiment of the present invention, and FIG. 3 is a pump according to a first embodiment of the present invention. It is a cross-sectional view of the structure.

As shown, in the pump structure according to the embodiment of the present invention, a synthetic resin spring 40 is installed outside the pump 10 to provide an elastic force to the pump 10.

The pump 10 is pumped while being pressed by the pressurization of the push button 30, thereby discharging the contents contained in the container body 20 to the outside.

Looking at the configuration of the pump 10 in more detail, as shown in FIG. 3, a cylinder 11 having a contents suction port 11a formed on one side thereof and a suction opening and closing the contents suction port 11a of the cylinder 11 A valve 12, a cylinder cap 13 fixedly coupled to one side of the cylinder 11, a piston support 14 formed inside the cylinder 11 and moving along the operating direction of the pump 10, , The piston 15 fitted to the outside of the piston support 14 and in close contact with the inner surface of the cylinder 11, the stem 16 coupled to the piston support 14, and the contents of the cylinder 11 It is coupled to a position adjacent to the limbo (11a) is composed of a suction pipe 17 for sucking the contents accommodated in the container body 20 and a spring 40 for elastically supporting the stem (16).

Here, the cylinder 11 is coupled by passing through the inlet portion 22 formed in the container body 20, and the contents suction port 11a of the cylinder 11 is located inside the container body 20. Meanwhile, a sealing ring 18 may be further formed between the cylinder 11 and the container body 20 to maintain the sealing force between the pump 10 and the container body 20.

The suction valve 12 serves to inflow or block the contents contained in the container body 20 into the cylinder 11, and the cylinder cap 13 is coupled to the open upper portion of the cylinder 11, so that the cylinder ( 11) While sealing the inside, it wraps around the outer periphery of the stem 16 so that the stem 16 moves vertically without shaking.

In addition, the piston support 14 is linearly moved from the inside of the cylinder 11, and an inlet passage 14a through which the cosmetic material temporarily stored in the cylinder 11 passes is formed at the outer periphery, and a piston 15 is formed at the lower part. A locking portion 14b is formed so as not to come off.

The piston 15 is fitted outside the piston support 14 and is linearly moved in the cylinder 11 together with the piston support 14, and the stem 16 includes a push button 30 and a piston support 14 By connecting the linear motion of the push button 30 is transmitted to the piston support (14).

The spring 40 elastically supports the stem 16, but the lower end is seated on the upper end of the cylinder cap 13, and the upper end is in close contact with the protrusion 16a formed on the upper outer periphery of the stem 16.

And the pump 10 configured as described above is fixed to the container body 20 by the inner cap 50 and the outer cap 60. The inner cap 50 is screwed to the inlet 22 of the container body 20 while enclosing the pump 10, and at the same time, a pressing portion 52 protruding from the inner periphery of the inner cap 50 is formed into a cylinder ( The pump 10 is fixed by pressing the protrusion 11b formed on the outer periphery of 11). Of course, in the coupling structure between the inner cap 50 and the container body 20, in addition to screw coupling, the inner cap 50 and the container body 20 can be rigidly fixedly coupled, such as an undercut coupling or a coupling between a protrusion and a groove or a forced fit coupling. It can be changed in various ways within the range.

As shown in Figure 2, the container body 20 is a storage container in which the contents are stored, and an inlet part 22 is formed on one side of the container body 20, and is adjacent to the inlet part 22. The pump 10 is installed. In the drawing of the pump structure according to an embodiment of the present invention, the container body 20 is illustrated as having a cylindrical shape having an inner space, but is not limited thereto, and even if it is formed in various shapes according to convenience of use or the taste or fashion of a purchaser. It's okay.

The push button 30 is coupled to the upper portion of the pump 10 to operate the pump 10 by pressurization. Here, a discharge passage 32 is formed inside the push button 30 to move the pumped contents by being connected to the stem 16 of the pump 10, and at one end of the discharge passage 32, a discharge passage A discharge port 34 for discharging the contents moved through 32 to the outside is formed.

The synthetic resin spring 40 is one of the components of the pump 10 and serves to provide an elastic force to some components of the pump 10.

The spring 40 is formed of a synthetic resin material, and is coupled between the cylinder cap 13 and the stem 16 of the pump 10 to elastically support the stem 16 as shown in FIG. 3. That is, the spring 40 is made of a synthetic resin material by injection molding, and elastically supports the pump 10 in place of the metal spring of the conventional pump.

Here, the synthetic resin spring 40 is injection-molded of a soft synthetic resin material, in particular, any one of Hytrel (Thermoplastic Copolyester Polyether Soft segment, polyester-based thermoplastic elastomer), LDPE (Low Density Polyethylene), and elastomer. It is preferable to be formed of the above material. Of course, the synthetic resin spring 40 is not limited to the above-described materials, and may be formed of various materials within a range having a certain elasticity.

The synthetic resin spring 40 has an open top and bottom cylindrical shape, and the upper support 42 and the lower support 44 and the upper and lower supports 42 and 44 are connected to each other and compressed by pressing or It may be made of a side wall 46 to be restored.

As shown in Fig. 2, the upper support 42 and the lower support 44 are formed in a ring shape and are in close contact with the stem 16 and the cylinder cap 13 of the pump 10, respectively, and the side wall 46 Is wrapped around the outside of the stem (16).

As described above, in the pump structure according to an embodiment of the present invention, the spring 40 is injection-molded of a synthetic resin material, and the side wall 46 connecting the upper support 42 and the lower support 44 of the synthetic resin spring 40 ) As the structure is changed in various ways to further improve the repulsion force, the pumping operation of the pump 10 is stably and smoothly performed by the pressurization of the push button 30, as well as reducing the manufacturing cost through simplification of the structure. You can do it.

6A and 6B are perspective and cross-sectional views of a synthetic resin spring according to a first embodiment of the present invention, and a synthetic resin spring according to the first embodiment of the present invention will be described with reference to this.

6A and 6B, the side wall 46 of the spring 40 formed of the synthetic resin material is connected to the upper support 42 and is inclined toward the inside of the spring 40, and the first inclined portion 46a is extended. -1) and a second inclined portion 46a-2 that is connected to the lower support member 44 and is inclined toward the inside of the spring 44 and extended.

In other words, the first inclined portion 46a-1 and the second inclined portion 46a-2 of the side wall 46 extend from the upper and lower supports 42 and 44 toward the center at a predetermined angle. Then, by meeting each other at the middle portion, the middle portion of the side wall 46 may be formed to be recessed into the inside of the pump 10. Here, the first inclined portion 46a-1 and the second inclined portion 46a-2 may be formed to gradually decrease in diameter as they move away from the upper support 42 and the lower support 44.

Accordingly, when the push button 40 is pressed, the stem 16 of the pump 10 moves downward, and the side wall 46 of the synthetic resin spring 40 is pressed and folded and compressed inward, When the pressure is released, the side wall 46 is restored as it is spread outward.

At this time, the first inclined portion 46a-1 and the second inclined portion 46a-2 are formed to have a relatively thin thickness compared to other portions as they go downward and upward, that is, to a portion where they meet each other. When 40) is compressed, the sidewall 46 can be folded more easily.

7A and 7B are perspective and cross-sectional views of a synthetic resin spring according to a second embodiment of the present invention, and a synthetic resin spring according to a second embodiment of the present invention will be described with reference to this.

7A and 7B, a spiral groove 46b-1 is formed in the outer periphery of the side wall 46 of the spring 40 formed of the synthetic resin material along the operating direction of the pump 10, and the spiral groove ( A convex portion 46b-2 having a curved surface may be formed between 46b-1).

In other words, the spiral groove 46-1 may be formed in a groove shape that winds up the outer surface of the side wall 46 while maintaining a certain angle and distance, that is, the side wall 46 is twisted in any one rotation direction. have. Accordingly, when the push button 40 is pressed, the stem 16 of the pump 10 moves downward, and the side wall 46 of the synthetic resin spring 40 is pressed while the side wall 46 It is folded and compressed inward of the spiral groove 46b-1, and when the pressure is released, the side wall 46 is restored while being spread outward of the spiral groove 46b-1.

At this time, it may be appropriate that the inner periphery of the side wall 46 is formed to be bent like the outer periphery as shown so that the side wall 46 can be easily folded along the spiral groove 46b-1.

8A and 8B are perspective and cross-sectional views of a synthetic resin spring according to a third embodiment of the present invention, and a synthetic resin spring according to the third embodiment of the present invention will be described with reference to this.

Referring to FIGS. 8A and 8B, the sidewall 46 of the spring 40 formed of the synthetic resin material is formed to be convex outward, and at least one elastic hole 46c may be formed on any one surface.

In other words, the middle portion of the side wall 46 connecting the upper support 42 and the lower support 44 is formed to have a relatively larger diameter than that adjacent to the upper and lower supports 42 and 44, and the An elliptical elastic space having a width greater than that of a height may be formed on the sidewall 46. Accordingly, when the push button 40 is pressed, the stem 16 of the pump 10 moves downward, while the side wall 46 of the synthetic resin spring 40 is pressed and bent and compressed outward, When the pressurization is released, the side wall 46 is restored while spreading inward.

At this time, as the shape of the elastic hole 46c of the side wall 46 is crushed or returned to its original shape, the synthetic resin spring 40 is elastically compressed or restored.

9A and 9B are perspective and cross-sectional views of a synthetic resin spring according to a fourth embodiment of the present invention, and a synthetic resin spring according to the fourth embodiment of the present invention will be described with reference to this.

9A and 9B, the side wall 46 of the spring 40 formed of the synthetic resin material includes a pair of first connecting portions 46d-1 connected to the upper and lower supports 42 and 44, and the one It consists of a second connection part 46d-2 connected to the pair of first connection parts 46d-1, and an elastic space 46d- between the second connection part 46d-2 and the upper and lower supports 42 and 44 3) can be formed.

In other words, the first connection portion 46d-1 of the side wall 46 extends downward from the upper support 42 and extends upwardly of the lower support 44, and the second connection 46d- 2) connects the pair of first connection parts 46d-1 horizontally to each other, so that the second connection part 46d-2 and the upper and lower supports 42 and 44 are spaced apart from each other by a predetermined distance. , Can be placed side by side down. Accordingly, when the push button 40 is pressed, the stem 16 of the pump 10 moves downward, and at the same time, the second connection portion 46d-2 of the side wall 46 and the upper and lower supports 42 , As the elastic space 46d-3 between 44 is gradually reduced, the second connecting portion 46d-2 and the upper and lower supports 42 and 44 are brought closer to each other and are compressed, and when the pressure is released, the second As the connecting portion 46d-2 and the upper and lower supports 42 and 44 move away, the elastic space 46d-3 returns to its original size. As a result, the synthetic resin spring 40 is elastically compressed or restored through a change in the distance between the second connector 46d-2 and the upper and lower supports 42 and 44.

At this time, the second connection part 46d-2 of the side wall 46 may be disposed in parallel with the upper and lower supports 42 and 44 as shown, and may be disposed in a state that is inclined to either side other than horizontal. May be.

4 and 5 are views showing the operation of a pump structure according to an embodiment of the present invention, and a method of using the pump structure according to an embodiment of the present invention will be described with reference to this.

4 is a cross-sectional view illustrating a state of pressing a push button according to a first embodiment of the present invention, and FIG. 5 is a cross-sectional view illustrating a state of releasing the pressing of a push button according to the first embodiment of the present invention.

In order to use a pump having a synthetic resin spring according to an embodiment of the present invention, as shown in FIG. 4, the stem 16 of the pump 10 coupled with the push button 30 is pressed by pressing the push button 30 as shown in FIG. 4. Move it down.

When the stem 16 of the pump 10 is moved downward, the synthetic resin spring 40 that elastically supports the stem 16 is compressed. At the same time, the piston support 14 coupled to the lower portion of the stem 16 moves downward together, at this time, since the piston 15 is in close contact with the inner circumference of the cylinder 11, the piston support 14 The bay is moved to the lower side, and a gap is created between the piston support 14 and the piston 15 to create a discharge passage for the contents.

Thereafter, when the push button 30 is continuously pressed, the lower end of the stem 16, which was moved downward by the push button 30, pushes the piston 15, and the piston 15 moves downward together with the piston support 14. As it moves, the volume inside the cylinder 11 decreases, and accordingly, the intake valve 12 closes the contents inlet 11a by the discharge pressure in the cylinder 11, and at the same time, which was temporarily stored in the cylinder 11 The contents come out between the piston support 14 and the piston 15, pass through the inflow passage 14a of the piston support 14, and then are discharged through the discharge port 34 of the push button 30.

Thereafter, as shown in FIG. 5, when the pressurization of the push button 30 is released, the synthetic resin spring 40 that elastically supports the stem 16 of the pump 10 is restored to its original shape and The stem 16 and the piston support 14 move upward. At this time, the locking portion 14b of the piston support 14 pulls the piston 15 upward to close the gap between the piston support 14 and the piston 15, and the piston support 14 and the piston 15 Together, they move upward, and accordingly, the volume inside the cylinder 11 increases, thereby generating a vacuum pressure.

Thereafter, while the suction valve 12 is lifted by the vacuum pressure generated inside the cylinder 11, the contents suction port 11a formed on the bottom surface of the cylinder 11 is opened, so that the contents in the container body 20 are removed from the suction pipe ( It is introduced into the cylinder 11 through 17) and the contents inlet 11a.

Here, a more detailed look at the process of compressing the synthetic resin spring 40 is as follows.

When the push button 40 is pressed, the stem 16 of the pump 10 moves downward, and the side wall 46 of the synthetic resin spring 40 is pressed and compressed. When the pressure is released, the side wall (46) is restored as it is unfolded.

At this time, in the case of the synthetic resin spring 40 according to the first embodiment, the side walls 46 are folded inward and then spread outward by the repulsive force, and in the case of the synthetic resin spring 40 according to the second embodiment The side wall 46 is folded inward of the spiral groove 46b-1 and then spread outward by the repulsive force, and in the case of the synthetic resin spring 40 according to the third embodiment, the side wall 46 is bent outward. The spring 40 is made of synthetic resin according to the fourth embodiment, and the second connection portion 46d-2 of the side wall 46 and the upper and lower supports 42 and 44 are It is compressed or restored as it approaches and moves away by its repulsive force.

As described above, in the present description, specific matters such as specific components, etc., and limited embodiments and drawings have been described, but this is provided only to help a more general understanding of the present invention, and the present invention is limited to the above embodiments. No, various modifications and variations are possible from these descriptions by those of ordinary skill in the field to which the present invention belongs.

Therefore, the spirit of the present invention is limited to the described embodiments and should not be written, and all things having equivalent or equivalent modifications to the claims as well as the claims to be described later belong to the scope of the inventive concept.

10: pump 20: container body
30: push button 40: spring
42: upper support 44: lower support
46: side wall 50: inner cap
60: outer cap

Claims (5)

In the pump structure that is connected to a push button and is pumped by pressing the push button, and discharges the contents contained in the container body to the outside,
Including a spring for providing an elastic force to the pump, wherein the spring is formed of a synthetic resin material, the upper support and the lower support, and the upper and lower supports are connected to each other and composed of a side wall that is compressed or restored by pressing a push button. Pump structure having a synthetic resin spring, characterized in that. The method of claim 1,
The side wall of the spring formed of the synthetic resin material is composed of a first tilting part connected to the upper support and extending while inclining toward the inside of the spring, and a second tilting part connected to the lower support and extending while tilting toward the inside of the spring. A pump structure having a spring made of synthetic resin. The method of claim 1,
A pump structure having a synthetic resin spring, characterized in that a spiral groove is formed along an operating direction of the pump at the outer periphery of the side wall of the spring made of the synthetic resin material, and a convex portion having a curved surface is formed between the spiral grooves. The method of claim 1,
A pump structure having a synthetic resin spring, characterized in that a side wall of the spring made of the synthetic resin material is formed to be convex outward, and at least one elastic hole is formed on one side thereof. The method of claim 1,
The side wall of the spring formed of the synthetic resin material is composed of a first connection part connected to the upper and lower support, respectively, and a second connection part connecting each of the first connection parts, and an elastic space between the second connection part and the upper and lower supports. A pump structure having a synthetic resin spring, characterized in that it is formed.

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