KR20240010361A - Synthetic resins spring for pump dispenser - Google Patents

Abstract

The present invention relates to a synthetic resin spring for a pump dispenser, which can be conveniently discharged and recycled together with the pump dispenser and container without disassembling and separating, and has an elastic portion that provides movement and separation space that can be divided and operated. It provides a stable elastic force, while the elastic parts that change during compression do not contact each other, and the restoring force acts in the vertical direction without any impact from being caught or bumped, allowing for smooth up and down movement. It has been improved to a very simple structure with excellent durability.

Description

Synthetic resins spring for pump dispenser}

The present invention relates to a synthetic resin spring for a pump dispenser. More specifically, it is made of synthetic resin material so that it can be accommodated in the pump dispenser and recycled by discharging it with the container immediately without separating it after use. The spring has a simple structure. It relates to a synthetic resin spring for a pump dispenser that facilitates pumping of the nozzle head of the pump dispenser by ensuring smooth compression of the synthetic resin spring and operation of the bukwon force.

In general, the pump dispenser (1) discharges contents such as various liquids such as cleaning liquid and water contained in a container. Referring to FIG. 1, the pump dispenser (1) is inserted into the nozzle head (10) and performs pumping. It consists of a shaft 11 in which a sealing ring and a piston ring are combined, and a coil-shaped spring (not shown) that lowers the shaft 11 and the nozzle head 10 and returns them to their original positions.

And the pump dispenser (1) is inserted into a housing (13) combining a tube (14) that introduces the contents into the lower part and a valve (not shown) that helps the inflow and discharge of the contents, and then is connected to the plastic container (2) by the cap (3). ) is installed and used.

And after putting the contents of various liquids such as cleaning liquid and water in the container (2) and repeating the operation of pressing and releasing the nozzle head (10) of the pump dispenser (1), the contents contained in the container (2) are transferred to the housing (13). The contents that were initially introduced and flowed into the housing 13 are discharged to the outside in the secondary, and the nozzle head 10 and shaft 11 rise to their original state after lowering to help the user's convenience, and the coil-shaped This is achieved with the help of the elastic force of the spring.

However, the coil-shaped spring, which is one of the main parts of the pump dispenser (1), is made of a general metal material and is oxidized by liquid detergent or cleaning liquid, which has a negative effect on the human body. To solve this problem, a stainless steel metal material to prevent corrosion is used. There was a disadvantage in that the manufacturing cost increased when using,

In addition, when disposing of plastic containers for detergents or cleaning fluids that are discharged in large quantities in ordinary homes or public saunas, the metal springs must be disassembled and separated one by one. This is not only cumbersome but also consumes a lot of time and manpower, making it difficult to efficiently This is hindering recycling work.

In order to solve the above problems, a synthetic resin spring was proposed so that it can be immediately discharged together with the container without separating the metal spring.

For example, Domestic Patent Publication No. 10-2020-0080209 (published on July 6, 2020) “Spring for plastic container hand pump and synthetic resin container hand pump including the same” proposes a coil-shaped plastic or resin material formed in a spiral shape. It has been done.

In addition, Domestic Registered Utility Model No. 20-0286798 (announced on August 24, 2002) “Spring device molded from synthetic resin material” and Publication Patent No. 10-2004-0062301 (published on July 7, 2004) “Spring made of synthetic resin material” “Built-in pump dispenser”, Publication Patent No. 10-2004-0062305 (published on July 7, 2004), “Pump dispenser with built-in synthetic resin spring”, and Publication Patent No. 10-2020-0080209 (published on July 6, 2020) ) "A spring for a plastic container hand pump and a synthetic resin container hand pump including the same" were proposed.

The above prior technologies have the advantage of being hygienic by molding the spring material out of synthetic resin and enabling convenience and recycling since they are discharged together with the container instead of being separated after disassembly. However, the structure is a simple circular spring type or a single zigzag type structure. This has the limitation of not providing sufficient elasticity.

In particular, in the case of a single zigzag type, when the inclined elastic piece is compressed, the gap in the vertical direction narrows and changes. At this time, it is not naturally compressed in the vertical direction but is curved like a bow, so the direction of action of the repulsive force is diagonal rather than vertical. Therefore, there is a problem in that smooth up and down operation cannot be achieved.

Domestic Public Patent No. 10-2020-0080209 (published on July 6, 2020) Domestic registered utility model No. 20-0286798 (announced on August 24, 2002) Domestic Public Patent No. 10-2004-0062301 (published on July 7, 2004) Domestic Public Patent No. 10-2004-0062305 (published on July 7, 2004)

Therefore, the spring member of the present invention is injection molded from a synthetic resin material, so it can be conveniently discharged and recycled together with the pump dispenser and container without disassembling and separating, and has a very simple structure with excellent durability to stably provide elastic force. Through this, the elastic parts that change during compression do not come into contact with each other, and a restoring force is applied in the vertical direction without the impact of being caught or bumped, resulting in smooth up and down operation. The check valve that opens and closes the inlet of the housing is integrally formed, resulting in simplicity of structure and durability. The aim is to provide a synthetic resin spring for a pump dispenser that has been improved to improve.

The synthetic resin spring for a pump dispenser of the present invention to achieve the above object includes a nozzle head and shaft that move up and down to allow the contents of the container of the pump dispenser to flow into the housing or to discharge the contents that have flowed into the housing to the outside. A spring that has an upper end in contact with the bottom of the shaft and a lower end in contact with the lower inlet of the housing to provide elastic restoring force to the spring, and is made up of an elastic part connected in a zigzag shape between the upper and lower parts, providing a passage for the contents to flow in and out. In the synthetic resin spring for a pump dispenser made of a member, the elastic portion of the spring member is divided into a first elastic piece and a second elastic piece forming a zigzag shape, and when the nozzle head and shaft are lowered and the spring member is compressed. The outer connection portion of the first elastic piece and the outer connection portion of the second elastic piece are stopped from spreading outward in contact with the inner diameter of the housing, and the inner connection portion of the first elastic piece and the inner connection portion of the second elastic piece are provided with a movement gap so that they can move to the center. lose; When the nozzle head and shaft are lowered to the maximum height and the elastic member is compressed or returned to its original state, the inner connection portion of the first elastic piece and the inner connection portion of the second elastic piece do not contact each other and have a restoring force in the vertical direction without being caught or hit. A feature of the technical configuration is that the separation distance that allows for smooth up and down operation is maintained.

In addition, the present invention is characterized by a technical configuration in which a check valve is provided that is hinged to the inner diameter of the lower end of the spring member to open and close the inlet of the housing but only allow the inflow of contents.

In addition, the present invention is characterized by a technical configuration in which the spacing between the inner connection portion of the first elastic piece and the inner connection portion of the second elastic piece is formed to be 1 mm to 3 mm.

In addition, the present invention is a technical configuration feature in which grooves and protrusions forming an arc shape are alternately formed on the inner connecting portion of the first elastic piece and the inner connecting portion of the second elastic piece to protect them from being displaced from their respective positions when maximally compressed. Do it as

The synthetic resin spring member according to the present invention through the above configuration is capable of increased durability and balanced vertical movement by a pair of divided first and second elastic pieces forming a zigzag shape, and the inner connection part of the first elastic piece. And a gap is provided so that the inner connection part of the second elastic piece can move to the center, so that even if the first elastic piece and the second elastic piece, which were steeply inclined, change to a gentle slope due to compression, they do not contact each other and do not catch or hit each other in a vertical direction. It has a smooth restoring force, making it convenient to use, and its simple structure makes it easy to manufacture and assemble.

In addition, it has a very simple structure in which the check valve that opens and closes the inlet of the housing is hinged to the inner diameter of the lower part of the spring member, allowing smooth operation of allowing the inflow of contents and blocking discharge, and has the advantage of reducing manufacturing costs. .

In addition, by maintaining the spacing between the inner connection part of the first elastic piece and the inner connection part of the second elastic piece at 1 mm to 3 mm, the restoring force acts smoothly in the vertical direction without touching each other and without the impact of being caught or bumping, thereby improving convenience of use. There is an advantage that the inner connection part of the first elastic piece and the inner connection part of the second elastic piece are formed in the form of arc-shaped grooves and protrusions, so that they are protected from being separated from their respective positions even when compressed as much as possible, so that the restoring force always works smoothly. will be.

Figure 1 is an exploded perspective view showing a state in which a synthetic resin spring member for a pump dispenser according to the present invention is accommodated in a pump dispenser and mounted on a container by a cap.
Figure 2 is a perspective view showing a partially cutaway synthetic resin spring member for a pump dispenser according to the present invention.
Figure 3 is a bottom perspective view partially cut away showing the synthetic resin spring member for a pump dispenser according to the present invention coupled to the housing.
Figures 4 (A) and (B) are partial cross-sectional views showing a state in which the synthetic resin spring member for a pump dispenser according to the present invention is coupled to the housing and operated.
Figure 5 is a partially cut away perspective view showing arc-shaped grooves and protrusions formed on the first and second elastic pieces of the synthetic resin spring member for a pump dispenser according to the present invention.
Figures 6 (A) and (B) are front views showing the operating state of the synthetic resin spring member for the pump dispenser according to the present invention in Figure 5.

Hereinafter, the present invention will be described in detail using the attached drawings. However, since the attached drawings show preferred embodiments of the present invention, the scope of the present invention is not limited by these drawings. In addition, even if the configuration is essential for carrying out the present invention, a detailed description of the configuration that belongs to the known technology or can be easily implemented by a person skilled in the art from the known technology will be omitted.

A nozzle head (10) and shaft (11) that move up and down to allow the contents of the container (2) of the pump dispenser (1) to flow into the housing (13) or to discharge the contents that have flowed into the housing (13) to the outside. ) is fastened to the container 2 with a cap 3, and the upper end 41 is in contact with the bottom of the shaft 11 to provide elastic restoring force, and the lower end 42 is in contact with the lower inlet 131 of the housing 13. ) is in contact with the elastic part 43 connected in a zigzag shape between the upper part 41 and the lower part 42, and a spring member 4 that provides a passage 44 for the contents to flow in and out is interposed. The default configuration will be used.

That is, as shown in Figures 1 and 4, the spring member 4, which is injection molded from a synthetic resin material used in the pump dispenser 1 of the present invention, is rotated after the shaft 11 is lowered together with the nozzle head 10. By providing an elastic force to return to the position, the contents contained in the container 2 are introduced into the inlet 131 of the housing 15 in the first process and the inlet 131 of the housing 15 in the second process. While closing, the contents flowing into the housing 15 are discharged to the outside through the nozzle head 10.

The spring member (4) is made of polypropylene ( It is molded from PP), polyethylene (PE), etc., but is not limited to this, and can be any synthetic resin product that is harmless to the human body and can be recycled.

The spring member (4) of the present invention, which is injection molded from the synthetic resin material, has optimal repulsion force to provide elastic force so that the shaft (11) and the nozzle head (10) of the pump dispenser (1) are lowered together and then returned to the original position. Since a structural shape that can be applied in the vertical direction is required, in order to solve this problem, a band-shaped elastic portion 43 connected in a zigzag shape between the upper part 41 and the lower part 42 is zigzagged as shown in FIGS. 1 and 2. It is divided into a first elastic piece 43a and a second elastic piece 43b.

The divided pair of first elastic pieces 43a and second elastic pieces 43b are so formed that a restoring force is always applied in the vertical direction without being caught or impacted by each other during the process of compression and return to the original state, so that smooth up and down movement is achieved. A movement gap (T) is provided.

The movement interval T is the outer connection portion of the first elastic piece 43a when the spring member 4 is compressed downward by the height H from the state in FIG. 4 (A) to the state in FIG. 4 (B) 431) and the outer connecting portion 431' of the second elastic piece 43b contact the inner diameter of the housing 13 and stop opening outward and lower at the same time, and the inner connecting portion 432 of the first elastic piece 43a And the inner connection portion 432' of the second elastic piece 43b is a space that can be moved to the center, and the compressed height (H) = [movement gap (T) x 5 (number of arrangement of the inner and outer connectors and the inner and outer connectors) )]+[Space spacing (T') x 5 (number of arrangement of inner and outer connections and inner and outer connections)]

And the separation distance (T') is such that the nozzle head 10 and the shaft 11 are lowered by the maximum height (H), as shown in (B) of FIG. 4, and the elastic member 4 is compressed or returned to its original state. When the inner connection portion 432 of the first elastic piece 43a and the inner connection portion 432' of the second elastic piece 43b do not contact each other and there is no impact from being caught or bumped, a restoring force is applied in the vertical direction to form a smooth spring member. This is the space where the up and down operations of (4) take place.

Meanwhile, the spacing (T') is formed to be 1 mm to 3 mm, so that the inner connecting portion 432 of the first elastic piece 43a and the inner connecting portion 432' of the second elastic piece 43b are caught with each other when compressed. Since no impact or impact occurs, the spring member 4 moves up and down smoothly.

In addition, as shown in FIGS. 1 and 3, the inlet 131 of the housing 13 is opened and closed to allow the contents contained in the container 2 to flow into the housing 13, but the inflow of the contents is allowed and the inflowed contents are allowed to flow into the housing 13. When discharged to the outside, a check valve 45 of a very simple structure is provided that is hinged to the inner diameter of the lower end 42 of the spring member 4 to close the inlet 131.

In addition, as shown in FIGS. 5 and 6, an arc-shaped groove 433 and a protrusion ( 433') are formed alternately so that the spring members 4 are introduced so as not to deviate from their respective positions during the process of maximizing compression, but are safely protected without being caught in each other.

Therefore, the synthetic resin spring for a pump dispenser according to the present invention is divided into a first elastic piece (43a) and a second elastic piece (43b), and even when compressed and lowered by the maximum height (H), the first elastic piece (43a) remains. A movement gap (T) and a separation gap (t') of 1 mm to 3 mm are provided so that the inner connection part 432' of the inner connection part 432 and the second elastic piece 43b does not get caught or hit by each other. As a result, the repulsion force that acts when the spring member (4) is compressed and returns to its original state is smoothly applied in the vertical direction rather than the diagonal direction, thereby providing convenience of use, and the simple structure makes it easy to manufacture and assemble.

In addition, the check valve 45, which opens and closes the inlet 131 of the housing 13, has a very simple structure in which the check valve 45 is hinged to the inner diameter of the lower end 42 of the spring member 4, allowing the inflow of contents into the container (2). ) has the advantage of reducing manufacturing costs by smooth operation to block discharge to the air and forming it as one piece.

In addition, the arc-shaped groove 433 and the protrusion 433' formed between the inner connecting portion 432 of the first elastic piece 43a and the inner connecting portion 432' of the second elastic piece 43b are formed on the spring member 4. ) is compressed to the maximum, the groove 433 and the protrusion 433' do not become jammed even if they come into contact with each other, and serve to protect each other from being separated from their respective positions, as well as guiding the restoring force so that it always works smoothly. There is this.

What has been described above is only an example for implementing the synthetic resin spring for a pump dispenser according to the present invention, and the present invention is not limited to the above-described embodiment, and as claimed in the following patent claims, the present invention Without departing from the gist, anyone with ordinary knowledge in the field to which the invention pertains will say that the technical spirit of the present invention exists to the extent that various modifications can be made.

1: Pump dispenser 2: Container
3: Cap 4: Spring member
10: nozzle head 11: shaft
13: housing 14: tube
41: upper part 42: lower part
43: elastic part 44: passage
45: check valve 43a: first elastic piece
43b; Second elastic piece 431, 431': outer connection part
432, 432': inner connection 433: groove
433': protrusion

Claims (4)

A nozzle head (10) and shaft (11) that move up and down to allow the contents of the container (2) of the pump dispenser (1) to flow into the housing (13) or to discharge the contents that have flowed into the housing (13) to the outside. ), the upper part 41 is in contact with the lower part of the shaft 11, the lower part 42 is in contact with the lower inlet 131 of the housing 13, and the upper part 41 and the lower part 42 are in contact with each other to provide elastic restoring force to the shaft 11. In the synthetic resin spring for a pump dispenser, which consists of a spring member (4) made of elastic parts (43) connected in a zigzag shape and providing a passage (44) for the contents to flow in and out,
The elastic portion 43 of the spring member 4 is divided into a first elastic piece 43a and a second elastic piece 43b forming a zigzag shape,
When the nozzle head 10 and the shaft 11 are lowered and the spring member 4 is compressed, the outer connection portion 431 of the first elastic piece 43a and the outer connection portion 431' of the second elastic piece 43b ) is stopped from spreading outward in contact with the inner diameter of the housing 13, and the inner connecting portion 432 of the first elastic piece 43a and the inner connecting portion 432' of the second elastic piece 43b can be moved to the center. A movement gap (T) is provided so that;
When the nozzle head 10 and the shaft 11 are lowered by the maximum height H and the elastic member 4 is compressed or returned to its original state, the inner connection portion 432 and the second elastic member 43a of the first elastic piece 43a The inner connection portion 432' of the elastic piece 43b is a pump characterized in that the separation distance T' is maintained to enable smooth up and down operation by applying a restoring force in the vertical direction without touching each other and without impact from being caught or bumped. Synthetic resin spring for dispenser.
According to paragraph 1,
A pump characterized in that a check valve 45 is provided that is hinged to the inner diameter of the lower end 42 of the spring member 4 to open and close the inlet 131 of the housing 13 and only allow the contents to flow in. Synthetic resin spring for dispenser.
According to paragraph 1,
A pump characterized in that the spacing (T') between the inner connection portion 432 of the first elastic piece 43a and the inner connection portion 432' of the second elastic piece 43b is formed to be 1 mm to 3 mm. Synthetic resin spring for dispenser.
According to paragraph 1,
Arc-shaped grooves 433 and protrusions 433' are alternately formed in the inner connecting portion 432 of the first elastic piece 43a and the inner connecting portion 432' of the second elastic piece 43b to the maximum extent possible. A synthetic resin spring for a pump dispenser, characterized in that it is made to prevent it from being separated from its respective position when compressed.