KR200401893Y1 - Pump for Liquid Receptacle - Google Patents

Abstract

The present invention relates to an extrusion pump for a liquid container, the container cap coupled to the top of the cosmetic container, and a button flow path connecting the bottom and the side is formed and the upper side of the container cap to move along the height direction of the cosmetic container A cylinder positioned along the height direction of the inner side of the container cap to form an intermediate storage chamber communicating with the cosmetic container through a push button disposed on the bottom surface and a storage hole formed in the bottom surface, and mounted on an inner upper region of the cylinder. It has a tubular hermetic piston and an operating piston which is installed inside the hermetic piston to seal the upper region of the intermediate storage chamber and descends so that a passage flow path is formed between the button channel and the intermediate storage chamber when the push button is pressed. Raise the push button to close the passage flow path when the push button is released. In the extrusion pumps the liquid container having the operation, the container cap and the cylinder is formed integrally; It characterized in that it comprises a tubular stopper cap that is fixed to the upper end of the cylinder to limit the sealing piston to rise to a position higher than the initial installation position. This simplifies the assembly work and prevents the mounting state of the sealed piston from being disturbed, thereby reducing the product defective rate.

Description

Extrusion Pump for Liquid Containers {Pump for Liquid Receptacle}

The present invention relates to an extrusion pump for a liquid container, and more particularly to an extrusion pump used to extrude the liquid contents stored in the container to the outside.

Generally, liquids such as cosmetics, shampoo, and detergent are stored and sold in a container, and a user discharges the liquid stored in the container little by little, and an extrusion pump is widely used to discharge the liquid little by little from the container.

10 is a cross sectional view of a conventional liquid container extrusion pump.

Conventional liquid container extrusion pump, as shown in Figure 10, the container cap 110 is coupled to the upper end of the cosmetic container, the push button 180 is disposed on the upper side of the container cap 110, the intermediate storage chamber The cylinder 130 mounted along the height direction in the container cap 110 to form the 174, the tubular hermetic piston 171 mounted on the inner upper region of the cylinder 130, and the intermediate storage chamber 174 Cylinder 130 to open and close the operation unit 150 having an operation piston 151 installed inside the sealed piston 171 to seal the upper region, and the storage hole 131 formed on the bottom surface of the cylinder 130. It has a ball valve 172 provided inside.

The container cap 110 includes an upper flange 115 and a lower flange 112 and an outer wall 113 formed to be parallel to the lower flange 112 so that the operation hole 111 is formed along the height direction in the central region. And a horizontal portion 116 connecting the upper end of the outer wall portion 113 and the upper end of the lower flange 112, and a guide tube portion 114 standing up from the horizontal portion 116 so as to be parallel to the upper flange 115. .

The outer wall portion 113 has a female thread portion 113a formed on an inner surface thereof.

The container cap 110 is coupled to the cosmetic container (not shown) through the female screw portion 113a, and is coupled to the upper end of the operation piston 151 through the operation shaft 152 to be described later.

The container cap 110 having such a configuration can be elevated along the height direction of the cosmetic container through the interaction of the lifting flange 182 and the guide tube 114.

The push button 180 is formed with a button flow path 181 of a pilot-type connecting the bottom and the side, the bottom is formed with a tubular lifting flange 182. In addition, pressure ribs 183 are distributed along the height direction on the inner surface of the vertical direction of the button passage 181.

The cylinder 130 has a cylindrical body portion 132 having a storage hole 131 formed on the bottom surface thereof, and a coupling flange 133 extending outwardly over the entire circumference of the upper end of the body portion 132. Have

The cylinder 130 having such a configuration is coupled to the outer surface of the lower flange 112 in an undercut manner such that the coupling flange 133 is in surface contact with the bottom surface of the horizontal portion 116.

The sealing piston 171 is mounted through the upper opening of the cylinder 30 coupled to the container cap 110.

The actuating part 150 includes an actuating shaft 152 integrally formed on the bottom of the push button 180 so that the pressure applied to the push button 180 in addition to the actuating piston 151 is transmitted to the sealing piston 171, and the ball A return valve 156 interposed between the axial valve 153 installed in the intermediate storage chamber 174 and the container cap 110 and the push button 180 along the direction connecting the valve 172 and the operation piston 151. Have

The actuating piston 151 is formed in a tubular shape so that the shaft valve 153 can be partially inserted into the central region, and a plurality of piston interval holding ribs 151a are distributed and formed along the circumferential direction in the lower region of the outer surface. .

The actuating piston 151 having such a configuration is fitted between the actuating shaft interval holding ribs 154 to be described later, and an upper end thereof is installed to contact the pressurizing rib 183 of the push button 180.

The guide shaft 152a is formed in the actuating shaft 152 so that the actuating piston 151 can be inserted along the longitudinal direction. In addition, a plurality of fixed ribs 155 are distributed along the circumferential direction of the working shaft 152 along the circumferential direction, and a plurality of the operating shaft spacing holding ribs 154 are formed along the circumferential direction of the inner circumferential surface.

The operating shaft 152 having such a configuration is such that the guide tunnel 152a communicates with the button flow path 181 and the lower end is inserted into the upper groove of the sealed piston 171, and the outer surface is in surface contact with the lower flange 112. It is coupled to the upper end of the operation piston (151).

Accordingly, the operating shaft 152 can lower the sealing piston 171 so that a passage flow path is formed between the button flow path 181 and the intermediate storage chamber 174 when the push button 180 is pressed.

The shaft valve 153 is installed so that the upper region is inserted into the operation piston 151.

The return spring 156 is installed such that the lower region contacts the outer surface of the upper flange 115 of the container cap 110 and the upper region contacts the outer surface of the fixed rib 155.

Accordingly, the return spring 156 can accumulate an elastic force that can raise the push button 180 to its original position when the push button 180 is released.

Referring to the operation of the conventional liquid container extrusion pump having such a configuration as follows.

First, when the push button 180 is pushed downward, the operation piston 151 along with the operation shaft 152 is lowered.

When the operation piston 151 is lowered, a gap is generated between the sealing piston 171 and the operation piston 151. Here, the gap between the sealing piston 171 and the operation piston 151 becomes larger as the operation piston 151 descends.

The increase in the gap between the sealing piston 171 and the working piston 151 is in close contact with the upper groove of the sealing piston 171 is sealed with the working shaft 152 and the working piston 151. The piston 171 also continues until it descends.

When a gap occurs between the sealed piston 171 and the working piston 151, the liquid stored in the intermediate storage chamber 174 is spaced between the piston spaced maintenance rib 151a, space between the spaced operation ribs 154 and the button. Extruded through the flow path 181.

On the other hand, the elastic force is accumulated in the return spring 156 while the working piston 151 is lowered.

Next, when the push operation on the push button 180 is released, the push button 180 and the operating shaft 152 are raised to their original positions by the elastic force accumulated in the return spring 156 and the operating piston 151 is in the middle. It rises by the internal pressure of the storage chamber 174. As a result, the outflow of the liquid is stopped.

A conventional liquid pump extrusion pump is disclosed in No. 3931 (Survey name: Lifting and operating device of a cosmetic container pump) in 8002.

However, according to the conventional liquid container extrusion pump, since the container cap 110 and the cylinder 130 must be manufactured separately and combined, the assembling is complicated and the sealing piston 171 is coupled to the container cap 110. When mounted through the upper opening of the 130, there is a fear that the mounting state is disturbed (this is due to a step between the lower flange 112 and the inner surface of the cylinder 130) has a problem. As a result, the product defect rate increases.

Accordingly, an object of the present invention is to provide an extrusion pump for a liquid container in which a container cap and a cylinder are integrated.

The object is, according to the present invention, the container cap coupled to the top of the cosmetic container, and a button flow path connecting the bottom and the side is formed and disposed on the upper side of the container cap to move along the height direction of the cosmetic container A cylinder located along the height direction of the inner side of the container cap to form an intermediate storage chamber communicating with the cosmetic container through a push button and a storage hole formed in the bottom surface, and a tubular seal mounted to an inner upper region of the cylinder. The push button having a piston and an operation piston installed inside the sealed piston to seal the upper region of the intermediate storage chamber and descending so that a passage flow path is formed between the button channel and the intermediate storage chamber when the push button is pressed. A liquid having an operating portion for raising the push button so that the passage flow is closed when the push operation is canceled Of extrusion pump container, the container cap and the cylinder is formed integrally; It is achieved by an extrusion pump for a liquid container, characterized in that it comprises a tubular stopper cap fixed to the upper end of the cylinder so as to limit the sealing piston to rise to a position higher than the initial installation position.

In this case, in order to maintain the initial mounting state of the stopper cap, the operation unit is the container to accumulate the elastic force that can raise the push button to the original position when the push button release of the push button during the push operation of the push button A return spring interposed between the cap and the push button; The stopper cap includes a support jaw interposed between the lower end of the return spring and the container cap and a piston press portion formed at a right angle from the support jaw, and configured to be fixed to the cylinder through the piston press portion. .

In addition, the support wall portion for supporting the return spring from the outside may be formed on the upper surface of the container cap so as to stably maintain the stretching operation of the return spring.

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

1 and 2 are exploded perspective views of the extrusion pump for a liquid container according to an embodiment of the present invention, respectively, Figure 3 is a partially cutaway perspective view of the extrusion pump for a liquid container according to an embodiment of the present invention, Figure 4 and Figure 5 is an exploded cross-sectional view of the liquid container extrusion pump according to an embodiment of the present invention, Figure 6 is a partial cutaway cross-sectional view of the extrusion pump for liquid container according to an embodiment of the present invention.

Extrusion pump for a liquid container according to an embodiment of the present invention, as shown in these drawings, having a container cap 20 and a cylinder 30 formed integrally coupled to the top of the cosmetic container through the container cap 20 The cap cylinder 30, the push button 80 disposed above the container cap 20, the tubular hermetic piston 71 mounted in the upper region of the cylinder 30, and the cylinder 30 Tubular stopper cap 60 fixed to the upper end, the operation piston 51 and the container cap 20 and the push button installed inside the sealed piston 71 so as to seal the upper region of the intermediate storage chamber 74 ( Actuator 50 having a return spring 56 interposed between 80 and the valve body 72 provided inside the cylinder 30 to open and close the storage hole 31 formed on the bottom surface of the cylinder 30. Have

The container cap 20 includes an upper horizontal portion 21 connected to the upper end of the cylinder 30, a vertical portion 22 bent to parallel to the cylinder 30 from the upper horizontal portion 21, and a vertical portion 22. The lower horizontal portion 23 bent so as to be parallel to the upper horizontal portion 21, the guide tube portion 24 standing up from the lower horizontal portion 23 so as to be parallel to the vertical portion 22, and the upper horizontal portion 21. It has the support wall part 25 standing up from this.

Container cap 20 having such a configuration is coupled to the cosmetic container (not shown) by the undercut method through the inner surface of the vertical portion (22).

The cylinder 30 forms an intermediate storage chamber 74 communicating with the cosmetic container through the storage hole 31.

The stopper cap 60 has a ring-shaped piston presser 61, a support jaw 62 bent at a right angle from the piston presser 61, and a direction opposite to the support jaw 62 from the piston presser 61. And a ring-shaped spring stopper 64 which stands up from the elastic portion 63 in the opposite direction to the piston pressing portion 61.

The stopper cap 60 having such a configuration is coupled to the inner wall surface of the cylinder 30 through the piston pressing portion 61 in an undercut manner. In the state where the stopper cap 60 is coupled to the cylinder 30, the support jaw 62 is interposed between the lower end of the return spring 56 and the upper horizontal portion 21 of the container cap 20, and the elastic portion 63. ) Is in elastic contact with the outer surface of the working shaft 52.

The stopper cap 60 having such a configuration serves to limit the sealing piston 71 from rising to a position higher than the initial installation position.

The push button 80 has a button flow path 81 in the form of a lifter connecting the bottom and the side, the bottom is formed with a pair of tubular lifting flange 82. The pressing ribs 83 are distributed along the height direction on the inner surface of the vertical passage of the button passage 81.

The push button 80 having such a configuration is coupled to the upper end of the operating piston (51) through the operation shaft 52 (to be described later), a pair of lifting flange 82 and the guide tube portion 24 and the support wall portion 25 Through the interaction of the can be lifted along the height direction of the cosmetic container.

The actuating unit 50 has an actuating shaft integrally formed on the bottom surface of the pushbutton 80 so that the pressure applied to the pushbutton 80 in addition to the actuating piston 51 and the return spring 56 is transmitted to the sealing piston 71. Has 52.

The actuating piston 51 is formed with a plurality of piston spacing holding ribs 51a dispersed along the circumferential direction in the lower region of the outer surface.

The actuating piston 51 having such a configuration is fitted between the actuating shaft gap holding ribs 54 to be described later, and is installed so that the upper end thereof contacts the pressurizing rib 83 of the push button 80.

The guide shaft 52a is formed in the actuating shaft 52 so that the actuating piston 51 can be inserted along the longitudinal direction. In the guide tunnel 52a, a plurality of operating shaft spacing ribs 54 are distributed along the circumferential direction on the inner circumferential surface thereof.

The operation shaft 51 having such a configuration is operated so that the guide tunnel 52a communicates with the button flow passage 21, the lower end is inserted into the upper groove of the sealing piston 71, and the outer surface is in surface contact with the elastic portion 63. It is coupled to the top of the piston 51.

Accordingly, the operation shaft 52 lowers the sealing piston 71 and the operation piston 51 so that a passage flow path is formed between the button flow passage 21 and the intermediate storage chamber 74 when the push button 80 is pressed. It becomes possible.

The return spring 56 is installed such that the lower region contacts the inner surface of the support wall 25 and the upper region contacts the bottom surface of the push button 80.

Accordingly, the return spring 56 can accumulate an elastic force that can raise the push button 80 to the original position when the push button 80 is released.

Referring to Figures 7, 8 and 9 of the operation of the liquid container extrusion pump according to an embodiment of the present invention having such a configuration as follows.

First, when the push button 80 is pushed downward, the actuating piston 51 along with the actuating shaft 52 is lowered.

When the working piston 51 descends, a gap is generated between the sealing piston 71 and the working piston 51. Here, the gap between the sealing piston 71 and the working piston 51 becomes larger as the working piston 51 descends.

The increase in the gap between the sealing piston 71 and the working piston 51 is the bottom of the operating shaft 52 is in close contact with the upper groove of the sealing piston 71 is sealed together with the working shaft 52 and the working piston (51). The piston 71 also continues until it descends (see FIGS. 7 and 8).

If a gap occurs between the hermetic piston 71 and the working piston 51, the liquid stored in the intermediate storage chamber 74 is spaced between the piston spacing holding rib 51a, the space between the working shaft spacing holding rib 54 and the button flow path. Extruded through 81.

Meanwhile, elastic force is accumulated in the return spring 56 while the spring cap 60 is lowered.

Next, when the push operation for the push button 80 is released, the operating shaft 52 raises to the original position along with the push button 80 by the elastic force accumulated in the return spring 56, and the operating piston 51 is in the middle. It rises by the internal pressure of the storage chamber 74 (refer FIG. 9). As a result, the outflow of the liquid is stopped.

According to the embodiment of the present invention as described above, by forming the container cap 20 and the cylinder 30 integrally, the assembling operation is simplified and the mounting state of the sealing piston 71 can be prevented from being disturbed. (Unlike conventional, no step occurs in the inner surface of the cylinder 30). Accordingly, it is possible to reduce the product defect rate.

And by configuring the stopper cap 60 to include a piston pressing portion 61 formed by bending at a right angle from the support jaw 62 and the support jaw 62, the initial mounting state of the stopper cap 60 can be stably maintained. Will be.

In addition, by forming the support wall portion 25 on the upper surface of the container cap 20, it is possible to stably maintain the stretching operation of the return spring (56).

Therefore, according to the present invention, by assembling the container cap and the cylinder integrally, the assembly work is simplified and the mounting state of the sealed piston is prevented from being disturbed, thereby reducing the product defect rate.

Figure 1 and Figure 2 is an exploded perspective view of an extrusion pump for a liquid container according to an embodiment of the present invention, respectively,

3 is a partially cutaway perspective view of an extrusion pump for a liquid container according to an embodiment of the present invention;

Figure 4 and Figure 5 is an exploded cross-sectional view of the extrusion pump for a liquid container according to an embodiment of the present invention, respectively;

Figure 6 is a partial cutaway cross-sectional view of the extrusion pump for a liquid container according to an embodiment of the present invention,

7, 8 and 9 is an operating state of the extrusion pump for a liquid container according to an embodiment of the present invention, respectively,

10 is a cross sectional view of a conventional liquid container extrusion pump.

Explanation of symbols on main parts of drawing

10: cap cylinder 20, 110: container cap

21: upper horizontal portion 22: vertical portion

23: lower horizontal portion 24, 114: guide tube portion

25: support wall portion 30, 130: cylinder

50, 150: operating part 51, 151: working piston

52, 152: working shaft 60: stopper cap

61: piston press 62: support jaw

63: elastic portion 64: spring stopper

71, 171: Sealing piston 80, 180: Push button

       112: lower flange 113: outer wall portion

       115: upper flange 116: horizontal portion

       132: body portion 133: coupling flange

Claims (3)

A container cap coupled to the top of the cosmetic container, a button flow path connecting the bottom and the side is formed and push buttons disposed on the upper side of the container cap to move along the height direction of the cosmetic container, and storage formed on the bottom surface A cylinder located along the height direction inside the container cap to form an intermediate storage chamber communicating with the cosmetic container through a ball, a tubular hermetic piston mounted on the inner upper region of the cylinder, and an upper region of the intermediate storage chamber Is installed inside the sealing piston so as to seal the operating piston which is lowered so that a passage flow path is formed between the button channel and the intermediate storage chamber when the push button is pressed and the passage flow path is released when the push button is released. In the extrusion pump for a liquid container having an operating unit for raising the push button to be closed, The container cap and the cylinder are integrally formed; Extrusion pump for a liquid container, characterized in that it comprises a tubular stopper cap fixed to the upper end of the cylinder so as to limit the sealed piston to rise to a position higher than the initial installation position. The method of claim 1, The operation unit includes a return spring interposed between the container cap and the push button to accumulate an elastic force that can be raised during the push operation of the push button to release the push button to its original position when the push button is released. ; The stopper cap includes a support jaw interposed between the lower end of the return spring and the container cap and a piston press portion bent at a right angle from the support jaw, and is fixed to the cylinder through the piston press portion. Extrusion pump for containers. The method according to claim 1 or 2, Extrusion pump for a liquid container, characterized in that the upper surface of the container cap is a standing wall portion for supporting the return spring from the outside.