KR20160098115A - Push head for foaming pump dispenser - Google Patents

Abstract

The present invention relates to a push head for a foaming pump dispenser, the object of which is to improve the internal structure of the push head so that bubbles generated by pumping / mixing of the contents (liquid) and air are discharged through a multi- It wants to bubble out. To this end, according to the " push head for forming pump dispenser " A vertical channel 320 which is upwardly and downwardly disposed on the upper portion of the cylinder body 220 and which is guided upward by the bubbles generated at the upper center of the cylinder body 220, (310) formed with a jet port (330) extending in the direction of the arrow. A first body 341 that is fitted in the vertical flow path 320 of the head body 310 and has a cylindrical shape and is accommodated and disposed at the upper and lower portions thereof and a first body 341 that covers the lower surface of the first body 341, A first filtering member 340 composed of a filtering screen 342 and a mesh-shaped secondary filtering screen 343 provided to cover the upper surface of the first body 341; A second body 351 formed at the rear end of the head main body 310 with the fitting portion 352 formed at a stepped step and being opened at the front and rear so as to be inserted into the fitting hole 332 at the tip of the spout 330, A second filtering member 350 made of a mesh-shaped tertiary filter 353 provided to cover the rear portion of the body 351; .

Description

[0001] Description [0002] PUSH HEAD FOR FOAMING PUMP DISPENSER FOR FORMING PUMP DISPENSER [0003]

The present invention relates to a foaming pump dispenser, and more particularly, to a " push head for a foaming pump dispenser " for discharging bubbles generated by mixing / pumping a solution and air stored in a container to the outside.

Generally, a foaming pump dispenser is a device for mixing a liquid content (solution) stored in a container with air in a gas-liquid mixing chamber and discharging a uniform foam liquid through a homogenization pipe (sieve); Bath shampoo, hair cosmetics, or cleaning agents used in bathrooms, kitchens, and toilets.

Conventional foaming dispensers are used in a form that mixes and extrudes an appropriate amount of gas to the liquid content to generate foam. In products where such a gas forming dispenser is applied, it is necessary to fill the container with a compressed gas, There is an inconvenience to shake each time you use it. In addition, when the product container is inclined, the filling liquid can not be ejected in a foam state, and only the compressed gas is injected.

To solve this disadvantage; A foaming pump dispenser that mixes the outside air and the liquid contents appropriately and ejects it with foam without filling or shaking the compressed air is disclosed in Korean Utility Model Registration No. 20-0169773 (entitled " Foam generator air valve device ") have. As shown in FIG. 1, the foaming pump dispenser disclosed in Korean Utility Model Registration Utility Model No. 20-0169773 includes a cap 1 which is screwed on a neck of a container A in which contents (liquid phase) are stored, A long cylindrical liquid cylinder 2c which is fixed inside the cap 1 and has an air cylinder 2a in which the fitting hole 2b is perforated and in which the contents (liquid) enter the center of the lower portion of the air cylinder 2a, A push head 3 having a cylinder body 2 formed therein and an outlet 3a through which foam is injected and supported by the cap 1 so that one end of the cylinder body 2 enters and exits the cylinder body 2; An upper portion is fixed on the inner periphery of the cylinder body 2a and an outer periphery of the lower end is closely attached to the inner periphery of the air cylinder 2a of the cylinder body 2 to press the lower portion of the air cylinder 2a, 4, a coil spring 5 provided below the solution cylinder 2c of the cylinder body 2, A liquid piston 6 provided between the pistons 4 for resiliently supporting the push head 3 upward and guiding the compressed air and the contents to the upper portion of the air piston 4, 2c and a ball 8 which is located at the bottom and selectively opens and closes the liquid inlet 7. Inside the vertical flow path of the push head 3, a filtering net 9 for filtering the bubbles is disposed. In this conventional forming pump dispenser, when the push head 3 is repeatedly depressed, the contents (liquid) filled in the container A are sucked / pumped through the liquid cylinder 2c and the air in the air cylinder 2a is ejected The bubbles are generated, and the bubbles continue to be blown out through the outlet 3a of the push head 3 while being evenly filtered through the sieve 9.

However, in such a conventional foaming pump assembly, since the discharge foam is primarily filtered and discharged only through the filtering net 9 installed inside the vertical flow path of the push head 3, there is a limit to generate a smooth and homogeneous foam.

The present invention has been made to solve such a problem, SUMMARY OF THE INVENTION It is an object of the present invention to improve the internal structure of a push head so that bubbles generated by pumping / mixing of contents (liquid) and air are discharged through a multi-stage sieve network, A push head for a dispenser ".

According to an aspect of the present invention, 1. A push head for a forming pump dispenser for discharging a foam formed by mixing pressurized air with contents pumped to an upper portion of a center of a cylinder body through repetitive pressing operations,

A push head for the forming pump dispenser; A vertical flow path which is upwardly guided to the upper portion of the cylinder body and in which bubbles generated at an upper portion of the central portion of the cylinder body flows into the upper portion of the cylinder body, Wow; A first body disposed in a vertical flow path of the head body, the first body having a cylindrical shape, the upper body being open and the upper and lower portions opened; a mesh-type primary filter disposed to cover the lower surface of the first body; A first filtering unit for sequentially discharging bubbles coming into the vertical flow passage through the first filtering network and the second filtering network; A second body formed at the rear end so as to be received in the fitting hole at the tip end of the head main body airtight and having a fitting part formed at the stepped step and having front and rear openings, and a mesh- A second filtration member for filtering the bubbles trapped through the first filtration member again through the third filtration network; .

Further, according to the push head for a forming pump dispenser according to the present invention, The mesh size of the secondary drawing mesh is larger than the mesh size of the primary drawing mesh; And the mesh size of the third filtering network is larger than the mesh size of the second filtering network.

Further, according to the push head for a forming pump dispenser according to the present invention, And a coupling jaw protruding in a circumferential direction on the outer wall of the second body fitting portion of the second filtering member; And an engaging groove is formed on the inner wall of the distal end of the head main body so that the engaging jaw is seated in an interference fit manner.

According to the push head for a forming pump dispenser according to the present invention having the above-described configuration, The bubbles generated in the gas-liquid mixing chamber are filtered through the first and second filtration nets of the first filtration member disposed in the vertical flow passage of the push head, and are subsequently filtered and discharged through the third filtration mesh of the second filtration member. Accordingly, the bubbles generated by pumping / mixing the contents (liquid) and the air are discharged through the multi-stage sieve network, so that the foam is discharged in a more smooth and homogenized state.

Further, according to the push head for a forming pump dispenser according to the present invention, The mesh size of the secondary filtration mesh is larger than that of the primary filtration mesh and the mesh size of the tertiary filtration mesh is larger than the mesh size of the secondary filtration mesh so that the bubbles generated in the gas mixing chamber are sequentially filtered There is an action effect to be discharged.

Further, according to the push head for a forming pump dispenser according to the present invention, There is an advantage that the second body of the second filtering member is firmly coupled to the tip of the jet opening of the head body through the coupling jaw and the coupling groove in a forced fit manner.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 shows the foaming pump dispenser disclosed in Registration Practice No. 20-0169773
2 is a sectional view showing the overall structure of a forming pump dispenser according to the present invention.
3 is a cross-sectional view illustrating an internal structure of a push head according to the present invention.
4 is an exploded perspective view showing the second filtering member in the head body of the push head according to the present invention.
FIGS. 5 and 6 are enlarged cross-sectional views excerpting a coupling structure of the second filtering member according to the present invention.
FIG. 7 illustrates a process of ejecting foam through the push head according to the present invention.

Hereinafter, one preferred embodiment according to the present invention will be described in detail with reference to the accompanying drawings.

2; The product container 100 to which the present invention is applied stores a solution and the neck 110 of the product container 100 is provided with a foaming pump dispenser 200 for pumping the contents by a user's pressing operation and blowing the contents into a foam form Respectively.

The forming pump dispenser (200) to which the present invention is applied comprises: A large cap 210 mounted on the neck 110 of the product container 100 and a cylinder body 220 integrally formed with the air cylinder 221 and the solution cylinder 222 installed in the large cap 210, A valve member 224 for opening and closing the suction port 223 provided at the bottom of the suction port 222 and a push head 300 provided with a blow-out port ## supported to be vertically operated by the large cap 210, An air piston 230 which pressurizes the air in the air cylinder 221 and pumps the air into the push head 300 side, a solution piston 240 which pressurizes the contents in the solution cylinder 222 and pushes the contents into the push head 300 side, And a coil spring 250 disposed inside the air cylinder 221 for restoring the solution piston 240 and the air piston 230. Each of the constituent elements of the forming pump dispenser will be described in more detail as follows.

The large cap 210 has a cylindrical shape and is coupled to the neck 110 of the product container 100 by a screw fastening method. For this purpose, a female screw 211 is formed inside the large cap 210. A cylindrical guide 212 is provided on the upper portion of the large cap 211 so that the lower end of the push head 300 can be accommodated.

The cylinder body 220 is mounted concentrically inside the large cap 210; An air cylinder 221 for pumping external air to the push head 300 side and a solution cylinder 222 extending downward and concentric with the bottom of the air cylinder 221 are integrally formed. The air cylinder 221 is pressurized and discharged by the inflow of external air. For this purpose, the air piston 230 is brought into close contact with the air piston. A negative pressure hole 225 for communicating the inside of the air cylinder 221 with the inner space of the product container 100 is formed on the upper side of the wall surface of the air cylinder 221.

The solution cylinder 222 is formed in a cylindrical shape and extends downward from the center of the bottom of the air cylinder 221; (Solution) in the product container 100 is sucked and temporarily stored. At the bottom of the solution cylinder 222, a suction port 223 is provided for sucking the solution, and a suction tube 226 is connected to the suction port 223. The lower end of the coil spring 250 is accommodated at the bottom of the solution cylinder 222 so that the coil spring 250 is not biased to one side and exerts an elastic restoring force at the correct position.

The valve member 224 for opening and closing the suction port 223 of the solution cylinder 222 is made of a steel ball so that the suction port 223 is slightly opened upward when the contents (solution) are sucked, And the suction port 223 is closed.

The solution piston 240 is a kind of hollow piston in which a solution flow path is secured in the longitudinal direction, and the upper portion of the solution piston 240 is coupled to the center portion of the air piston 230. The lower portion of the solution piston 240 is in close contact with the inner wall of the solution cylinder 222. Accordingly, when the solution piston 240 is lowered together with the air piston 230, the contents (solution) in the solution cylinder 222 are pushed toward the push head 300 through the solution flow path while being pressurized.

The air piston 230 is arranged so as to be able to move up and down while being closely attached to the inside of the air cylinder 221, and is formed as a multi-stage cylinder. The lower end of the air piston 230 is brought into close contact with the inner wall of the air cylinder 221 to push down the air in the air cylinder 221 when the push head 300 is pressed, And is lifted up again by the elastic restoring force of the coil spring 250. When the air piston 230 reaches the maximum, the negative pressure hole 225 is closed to prevent air from being introduced between the inside of the product container 100 and the inside of the air cylinder 221 of the cylinder body 220. An air valve 260 is provided at an intermediate portion of the air piston 230 to control air inflow from the air hole 270 formed at one side thereof and air flow to the upper portion of the air piston 230. A gas-liquid mixing chamber 280 is formed on the upper center portion of the air piston 230. The gas-liquid mixing chamber 280 is a space in which the solution (piston) 240 and the contents (solution) pumped when the air piston 230 is lowered and the pressurized air are mixed to generate bubbles.

As shown in FIGS. 2 and 3, the push head 300, which is a main characteristic element of the present invention, is guided by a guide 212 of the large cap 210 to move upward and downward on the upper portion of the cylinder body 220, Liquid mixing chamber 280 of the piston 230 and a valve body 310 which is formed inside the center of the head body 310 so as to be connected to the gas-liquid mixing chamber 280, that is, And a jet port 330 formed in the upper portion of the vertical channel 320 and extending in the lateral direction to jet the foam to the outside.

A first filtering member 340 is disposed in the vertical channel 320 of the head main body 310. The first filtering unit 340 includes a first body 341 and a second body 342. The first body 341 is fitted in the vertical channel 320 and is opened and closed at the upper and lower ends. It consists of a primary sieve 342 and a secondary sieve 343. The mesh size of the upper secondary filtering mesh 343 of the first body 341 is larger than that of the lower primary filtering mesh 342 of the first body 341 so that the bubbles generated in the gas- Is firstly filtered through the primary filtering wire 342 and is introduced into the first body 341 of the first filtering member 340 and then filtered and discharged through the secondary filtering wire 343.

4 to 6, A second filtering member 350 is coupled to the tip of the jet port 330 of the head main body 310 to eject foam more finely. The second filtering member 350 includes a second body 351 having a fitting portion 352 formed at its rear end to be received at the tip of the air outlet 330 and having an open front and rear and a rear end portion of the second body 351 And a third mesh 353 covering the mesh. It is preferable that the mesh size of the tertiary filter 353 is larger than the mesh size of the secondary filter 343. The rear end of the second filtering member 350 is coupled to the front end of the air outlet 330 in an interference fit manner. A coupling jaw 354 is formed on the outer wall of the second body 351 of the second filtering member 350 in the circumferential direction so as to protrude from the inner wall of the tip end of the jet opening 330 of the head body 310, An engaging groove 331 is formed concavely so as to correspond to the engaging jaw 354. At the front end of the jet port 330 of the head body 310, a slot 332 is formed with a stepped jaw extending therefrom. Therefore, when the rear end of the second filtering member 350, that is, the fitting portion 352 is forcibly pushed against the tip of the air outlet 330, the engaging jaw 354 is seated in the engaging groove 331, The leading end of the second filtering member 350 is accommodated in the fitting hole 332.

Accordingly, when the pumping operation is repeatedly performed by pushing the push head 300 in the forming pump dispenser 200 to which the push head 300 according to the present invention is applied, 7, the bubbles generated in the gas-liquid mixing chamber 280 are firstly filtered through the primary filtering network 342 of the first filtering body 340 to be filtered by the first body (not shown) of the first filtering body 340 341 and then filtered through a secondary sifter 343 to escape to the side of the spout 330 with the homogenized foam. Subsequently, the foam that has escaped through the secondary sieve 343 passes through the tertiary sieve 353 of the second sieving member 350 and is ejected to the outside in a softer and homogenized state.

100 .. Product container 110 .. Neck 200 .. Forming pump dispenser
210 .. Large Cap 211 .. Female Thread 212 .. Guide
220 .. Cylinder body 221 .. Air cylinder 222 .. Solution cylinder
223 .. inlet 224 .. valve member 225 .. negative pressure hole
226 .. suction tube 230 .. air piston 240 .. solution piston
250 .. coil spring 260 .. air valve 270 .. air hole
280 .. gas-liquid mixing chamber 300 .. push head 310 .. head body
320 .. Vertical flow path 330 .. Outlet 331 .. Coupling groove
332 .. insertion hole 340 .. first filtering member 341 .. first body
342. 1st order filter 343. 2nd order filter 350 .. 2nd filter housing
351 .. second body 352 .. fitting portion 353. 3.
354 .. coupling jaw

Claims (3)

A push head for a foaming pump dispenser for discharging bubbles formed by mixing pressurized air with contents pumped to the upper center of a cylinder body (220) by repetitive pressing operation, the foam being located on an upper portion of a large cap (210)
The push head (300) for the forming pump dispenser comprises:
A vertical channel 320 that is upwardly and downwardly disposed on the cylinder body 220 and is upwardly guided by bubbles generated at a central upper portion of the cylinder body 220, A head body 310 having an ejection port 330 extending in the horizontal direction from the upper portion thereof;
A first body 341 which is fitted in the vertical channel 320 of the head body 310 and has a cylindrical shape and is opened and closed at upper and lower portions thereof and a second body 341 which covers the lower face of the first body 341, The first body 341 includes a primary filter 342 and a mesh-shaped secondary filter 343 that covers the upper surface of the first body 341, A first filtering member 340 for sequentially filtering and discharging the water through the second filtering network 342 and the second filtering network 343;
A second body 351 formed at the rear end of the rear end of the head body 310 with the fitting part 352 formed as a stepped step and opened front and rear so as to be inserted into the fitting hole 332 at the tip of the spout 330 of the head body 310, And a third type of filtering screen 353 in the form of a mesh provided to cover the rear portion of the second body 351. The foam passing through the first filtering member 340 is filtered again through the third filtering screen 352 A second filtering member (350) Wherein the pushing pump is a pushing head. The method according to claim 1,
The mesh size of the secondary mesh 343 is larger than the mesh size of the primary mesh 342,
Wherein the mesh size of the tertiary mesh screen (353) is larger than the mesh size of the secondary mesh screen (343). The method according to claim 1,
A coupling protrusion 354 protrudes in a circumferential direction on an outer wall of the second body 351 fitting portion 352 of the second filtering body 350;
Wherein an engaging groove (331) is formed on an inner wall of a tip end of the jet port (330) of the head main body (310) so that the engaging jaw (354) is seated in an engaging manner.

Images