CN219884570U - All-plastic pump type container - Google Patents

Abstract

The utility model provides a plastic pump type container, wherein the pump structure adopts plastic elastic element for whole pump type container material is non-metal, thereby make the container not have rusty risk, simultaneously, the pressure head drives the motion of passageway stopper, control gas chamber and gas-liquid mixing chamber's intercommunication and shut off, the passageway stopper drives the valve member motion, control liquid chamber and gas-liquid mixing chamber's intercommunication and shut off, and then realize that the fluid in the gas-liquid mixing chamber can not get into the gas channel and cause the gas channel to block up, also can not influence the resilience of gas piston, the fluid in the gas-liquid mixing chamber also can not get into the liquid chamber simultaneously, and then influence the play of follow-up liquid.

Description

All-plastic pump type container

Technical Field

The utility model relates to the technical field of packaging containers, in particular to the technical field of pump type containers.

Background

In the pursuit of beauty by women, fluid cosmetics are often used, and packaging containers are required. Meanwhile, new epidemic situation causes the risk awareness of the society for transmission of infectious diseases, more people pay attention to personal hygiene, and packaging containers for containing liquid such as hand washing liquid are needed. Foam-type products, whether liquid of the hand wash or cosmetic type, are widely used, and these products generally require the use of a pump-type container which, in use, can be extruded to form a foam as required.

However, there are generally elastic members in pump type containers, and such elastic members often use metal springs, which are prone to rust when in contact with air, and which cause contamination of the contents when in contact with the contents. Meanwhile, in the operation of such pump type containers, it is often necessary to mix the liquid in the container with air to form a foam, and research by the applicant finds that after the foam is formed, the foam should not enter the liquid space for storage again, otherwise, the liquid space is filled with the foam, so that subsequent liquid outlet is affected, and on the other hand, the foam should not enter the gas channel to cause gas channel blockage.

Disclosure of Invention

The utility model aims to provide an all-plastic pump type container which does not rust and can prevent foam from flowing backwards.

In order to achieve the above purpose, the present utility model provides the following technical solutions.

The utility model provides an all plastic pump type container, includes the pump structure, its characterized in that is used for producing foamy fluid, the pump structure includes pressure head, screw cap, passageway stopper, piston body, volume body, valve member, all plastic elastic element, the liquid outlet mouth is seted up to the pressure head, liquid outlet channel with the liquid outlet mouth links to each other, calls the wall that liquid outlet channel corresponds is the liquid pipe section, the all plastic elastic element is established to the cover outside the liquid pipe section, all plastic elastic element one end butt pressure head, the other end butt screw cap, the piston body includes gas plug, liquid plug, the piston body with the volume body cooperation forms gas chamber, liquid chamber, the liquid plug is cut apart the gas chamber with the liquid chamber, at least part of gas plug week side with the inner wall laminating of volume body, the pump structure includes the gas-liquid mixing chamber, at least part of passageway stopper belongs to the constitution part of gas-liquid mixing chamber, the passageway stopper passes screw cap top opening, the passageway includes annular fixed wall plug one end butt the pressure head, the other end butt screw cap, the piston body includes gas plug, liquid plug, the piston body and liquid chamber are cut off with the volume body, gas plug and gas plug can be controlled to move the motion. Like this, adopt plastic elastic element for whole pump type container material is non-metal, thereby make the container not have rusty risk, simultaneously, the pressure head drives the motion of passageway stopper, the intercommunication and the shutoff of control gas chamber and gas-liquid mixing chamber, the passageway stopper drives the valve member motion, the intercommunication and the shutoff of control liquid chamber and gas-liquid mixing chamber, and then realize that the fluid in the gas-liquid mixing chamber can not get into the gas channel and cause the gas channel to block up, also can not influence the resilience of gas piston, the fluid in the gas-liquid mixing chamber also can not get into the liquid chamber simultaneously, and then influence the play of follow-up liquid.

Further, the passageway stopper includes annular mixing wall, main part wall, the main part wall is located the outside of annular mixing wall, annular mixing wall outside sets up the annular bulge, the gas stopper includes tubular column, cross-plate, the tubular column is from the cross-plate to the pressure head direction extends, the tubular column is located annular mixing wall with between the main part wall, the tubular column with annular mixing wall and clearance between the main part wall forms tubular column gas passage, tubular column internal face sets up annular neck bulge, the neck bulge with the separation and the contact of annular bulge can be realized to tubular column gas passage with control that communicates and cut off between the gas-liquid mixing chamber. Therefore, through the cooperation of the neck bulge and the ring bulge, the communication and cut-off control of the tubular column gas channel and the gas-liquid mixing cavity are realized.

Further, the channel plug includes ring flange, annular muscle, annular channel wall, annular muscle the annular channel wall perpendicular to the ring flange extends, the gas plug includes annular baffle post, annular baffle post is followed the cross-plate to the pressure head direction extends, annular baffle post is located the tubular column outside, annular baffle post is located annular muscle with between the annular channel wall, annular baffle post with break away from between the annular muscle the annular channel wall with contact can realize outside ambient gas with the control of intercommunication and cut-off between the gas chamber. Thus, in the process of foaming, the gas in the gas cavity needs to be extruded to enter the gas-liquid mixing cavity from the gas cavity, the channel between the external environment gas and the gas cavity is cut off through the contact of the annular rib, the annular channel wall and the annular baffle column, and then the foaming process is smoother, meanwhile, research discovers that the annular baffle column is difficult to attach (press more difficultly) when being sealed on one side, namely, interference is difficult to exist, and the annular baffle column is easy to deform and further influences the sealing effect, and therefore, in the scheme, the annular rib is arranged simultaneously, the annular baffle column is simultaneously subjected to the pressure of the two sides of the annular rib and the annular channel wall, so that the annular baffle column is difficult to deform, and the sealing effect is good.

Further, the annular channel wall is close to annular baffle post one side lower part sets up the ventilation groove, annular channel wall upper portion is outstanding to annular baffle post one side, the cross disc is located the tubular column with annular baffle post between the part set up gas through-hole, gas through-hole intercommunication tubular column gas passage with the gas chamber. Thus, the upper part of the annular channel wall protrudes inwards, and together with the annular rib, a slight interference fit can be formed with the annular baffle column.

Further, the gas plug comprises a limiting ring column, the limiting ring column is located on the outer side of the annular baffle column, and when the limiting ring column is in butt joint with the flange plate, the annular baffle column is in contact with the annular rib and the annular channel wall and slightly interferes with the annular rib. Therefore, the relative positions of the gas plug and the channel plug are limited through the limiting ring column, so that interference fit degree among the annular rib, the annular channel wall and the annular baffle column is prevented from being too large, and the follow-up separation of the annular rib, the annular channel wall and the annular baffle column is influenced.

Further, the gas plug comprises a valve seat, the valve part at least partially penetrates through the valve seat, the valve part is at least partially located in a space formed by the annular mixing wall, the valve part comprises a valve core, the channel plug can drive the valve part to move up and down, and further the valve core is controlled to be contacted with or separated from the valve seat, so that cutting-off and communication control of the inner space of the pipe column and the inner space of the liquid plug are realized. Therefore, the valve seat of the valve element and the valve seat of the gas plug form cutting-off and communication control on the inner space of the pipe column and the inner space of the liquid plug, so that the liquid cavity of the liquid reflux-converging liquid in the gas-liquid mixing cavity is controlled.

Further, the air-filling hole is formed in the periphery of the volume body, and when the gas plug moves downwards, the container bottle is communicated with the external environment through the air-filling hole. Thus, when the foam is discharged, the air in the container bottle is supplemented, and the pressure in the container bottle is prevented from being reduced along with the outflow pressure of the liquid, so that the subsequent liquid discharging capability is prevented from being influenced.

Further, the channel plug comprises a plurality of guide ribs and bone positions, the guide ribs are annularly arranged, the bone positions are provided with central holes, the guide ribs are located below the bone positions, and the valve members are clamped at the bone positions. Therefore, through the action of the guide ribs, the gas-liquid mixed fluid is subjected to preliminary flow distribution, and the foam discharging capability is enhanced.

Further, the bone site is provided with foam holes, and the foam holes are arranged around the bone site. Thus, by setting up the foam holes, the ability to foam is further improved.

Further, the pressure head comprises a periphery, a volume space is formed in the periphery and the liquid outlet pipe section, the threaded cover comprises a top arm and a spiral cover, the top arm is of a ring column shape, the outer diameter of the top arm is smaller than the inner diameter of the periphery, a thin seam is formed between the top arm and the periphery, and an error-proof sleeve is arranged at the top arm. Therefore, the environment and the inside of the all-plastic pump type container can be subjected to gas exchange through the fine seam, and meanwhile, the pressure head can be prevented from being mistakenly pressed to cause foaming by the arrangement of the mistake proofing sleeve.

Drawings

Fig. 1 is a schematic view of an embodiment of the pump structure in an all plastic pump type container of the present utility model.

Fig. 2 is a schematic cross-sectional view of the pump structure of fig. 1.

Fig. 3 is a partial enlarged view of fig. 2.

Fig. 4 is a cross-sectional view of a channel plug of the pump structure of fig. 1.

FIG. 5 is a schematic view of the channel plug of FIG. 4 in a particular orientation.

Fig. 6 is a schematic view of a piston body of the pump structure of fig. 1.

Fig. 7 is a schematic view of another particular orientation of the channel plug of fig. 4.

Detailed Description

Fig. 1 illustrates a pump structure 10 of an all-plastic pump type container for producing a foamed fluid according to the present utility model, the all-plastic pump type container including the pump structure 10, and fig. 2 is a cross-sectional view of the pump structure 10 shown in fig. 1. Pump structure 10 includes a ram 11, a screw cap 12, a channel plug 13, a piston body 14, a volume 15, a valve member 16, a valve plate 17, an all plastic elastic element 18, and a foam net 20.

The pressure head 11 is provided with a liquid outlet 111 and a liquid outlet channel 112. The liquid outlet passage 112 is connected to the liquid outlet nozzle 111. The wall surface (113) corresponding to the liquid outlet channel 112 is called a liquid outlet pipe section, and an all-plastic elastic element 18, such as an all-plastic spring, is sleeved outside the liquid outlet pipe section 113. One end of the full plastic spring 18 is abutted against the pressing head 11, and the other end is abutted against the threaded cap 12. The ram 11 includes a periphery 114, and a volume space is formed between the periphery 114 and the outlet section 113.

The screw cap 12 includes a top arm 121 and a screw cap 122. The top arm 121 is a ring column shape, and the outer diameter of the top arm 121 is smaller than the inner diameter of the outer periphery 114, so that a slit is formed between the top arm 121 and the outer periphery 114, and gas can flow in. The plastic spring 18 is at least partially located in the volume defined by the periphery 114, the top arm 121 and the outlet tube section 113. The top arm 121 may be provided with an error-proof sleeve 19, which may prevent being pressed by mistake, for example, when being placed in a supermarket for sale, and the error-proof sleeve 19 may prevent a customer from pressing by mistake during shopping. The spiral cover 122 has a hollow inner side and an open top. The side wall of the screw cap 122 is provided with screw threads to be coupled with a container bottle (not shown in the drawings) of the all plastic pump type container. The screw cap 122 is provided with mounting means for connection with the piston body 14, the volume body 15.

As shown in fig. 4, the passage plug 13 is partially open through the top end of the spiral cover 122. The channel plug 13 comprises an annular fixing wall 131, a flange 132, an annular rib 133, an annular channel wall 134, an annular mixing wall 135, a body wall 136, guide ribs 137, and a bone site 138. The fixed wall 131 is clamped with the liquid outlet pipe section 113, so that the movement of the pressure head 11 can drive the channel plug 13. The foam net 20 is disposed in an inner space formed by the annular fixing wall 131. The annular bead 133, the annular channel wall 134 extend perpendicularly to the flange 132. The annular channel wall 134 is provided with a vent groove 130 (as shown in fig. 5) near the lower portion of the side of the annular barrier, and the upper portion of the annular channel wall 134 protrudes toward the side of the annular barrier (in the embodiment shown in fig. 2, the lower portion of the annular channel wall 134 is provided with a vent groove, and the upper portion of the annular channel wall 134 protrudes inward; in another embodiment, the annular channel wall 134 may be located inside the annular rib 133, and in this case, the lower portion of the outer side of the annular channel wall 134 is provided with a vent groove, and the upper portion of the annular channel wall 134 protrudes outward). The annular bead 133 has a height less than the annular channel wall 134. The body wall 136 is located outside the annular mixing wall 135, with an annular protrusion 1351 being provided outside the annular mixing wall 135. The guide ribs 137 are plural, and the guide ribs 137 are arranged in a ring shape. The bone site 138 is provided with a central hole and the guide rib 137 is located below the bone site 138. Valve member 16 is snapped into place at bone 138.

Piston body 14 cooperates with volume 15 to form a gas chamber 151 and a liquid chamber 152. Piston body 14 forms a gas-liquid mixing chamber 153 with passageway plug 13 and valve member 16. A suction tube may be connected below the volume 15.

As shown in fig. 6, the piston body 14 includes a gas plug 141, a liquid plug 142. In this embodiment, the gas plug 141 and the liquid plug 142 are integrally formed. The liquid stopper 142 is a ring column, and the liquid stopper 142 separates the gas chamber 151 from the liquid chamber 152. Here, the center line of the liquid stopper 142 is taken as the axis of the all plastic pump type container. At least a part of the peripheral side of the gas plug 141 is bonded to the inner wall of the volume 15. The gas plug 141 includes a tubular column 143, an annular stop 144, a stop collar 145, a cross disk 146, and a valve seat 148. The pipe column 143, the annular baffle column 144 and the limiting ring column 145 extend from the transverse disc 146 towards the direction of the pressure head 11. The pipe column 143, the annular baffle column 144 and the limiting ring column 145 are arranged outwards (outwards away from the axis) in sequence from the central line. The portion of the cross disk 146 between the tubular column 143 and the annular barrier 144 is provided with a gas through hole 147. A valve seat 148 is provided between the liquid plug 142 and the tubular string 143.

Valve member 16 extends at least partially through valve seat 148 and valve member 16 is at least partially within the space defined by annular mixing wall 135. Valve element 16 includes a valve element 161, and passageway plug 13 may move valve element 16 up and down to control the contact or disengagement of valve element 161 with valve seat 148. The annular mixing wall 135 forms a gas-liquid mixing chamber 153 with the valve member 16 and valve seat 148.

The stem 143 is located between the annular mixing wall 135 and the body wall 136, and the gap between the stem 143 and the annular mixing wall 135 and the body wall 136 forms a stem gas passage. The inner wall surface of the pipe column 143 is provided with an annular neck boss 1431, and the separation and contact between the neck boss 1431 and the annular boss 1351 can realize the control of the communication and the cut-off between the pipe column gas channel and the gas-liquid mixing cavity 153.

An annular post 144 is located between the annular rib 133 and the annular channel wall 134. The separation and contact between the annular baffle post 144, the annular rib 133 and the annular channel wall 134 can realize the control of the communication and cut-off between the external environment gas and the gas cavity 151. The annular channel wall 134 is located between an annular stop post 144 and a stop collar post 145.

The valve seat 148 cooperates with the valve element 16 to control the communication and disconnection between the inner space of the pipe column 143 and the inner space of the liquid plug 142, i.e., between the liquid chamber 152 and the gas-liquid mixing chamber 153.

The volume 15 is provided with an air supply hole 154 on the peripheral side. When the gas plug 141 is displaced downward, the container bottle (not shown in the drawing) is connected to the external environment, and the gas in the container bottle is replenished, so that the pressure in the bottle is prevented from being reduced due to the reduction of the liquid amount in the container bottle, and the subsequent liquid outlet effect is prevented from being influenced.

The pump structure 10 operates on the following principle when in use:

when the pressure head 11 is pressed down, the channel plug 13 moves downwards under the drive of the pressure head 11 and gradually moves to the limit ring column 145 to be abutted against the flange plate 132, at this time, the annular baffle column 144 is located between the annular rib 133 and the annular channel wall 134, and forms slight interference, so as to form a sealing effect and cut off the communication between the gas cavity 151 and the external environment. Meanwhile, due to the downward movement of the passage plug 13, the annular protrusion 1351 of the annular mixing wall 135 is disengaged from the neck protrusion 1431 of the stem 143, thereby allowing the gas chamber 151 to communicate with the gas-liquid mixing chamber 153, i.e., the gas in the gas chamber 151 can communicate with the gas-liquid mixing chamber 153 through the gas through hole 147, the gap passage between the body wall 136 and the stem 143, and the gap passage between the stem 143 and the annular mixing wall 135. Simultaneously, the valve member 16 is moved downward by the passage plug 13, and the valve element 161 of the valve member 16 is disengaged from the valve seat 148 of the piston body 14, so that the liquid chamber 152 communicates with the gas-liquid mixing chamber 153. At the same time, the valve plate 17 blocks the valve hole 21.

The ram 11 continues to move down, the pipe column 143 is pushed downward by the channel plug 13, the piston body 14 moves downward relative to the screw cap 12, at this time, the gas in the gas chamber 151 is extruded into the gas-liquid mixing chamber 153, and at the same time, the liquid in the liquid chamber 152 is extruded by the liquid plug 142, and enters the gas-liquid mixing chamber 153 through the liquid channel between the valve element 16 and the valve seat 148. The gas and the liquid are primarily mixed in the gas-liquid mixing chamber 153 to form bubbles. The bubbles are formed into foam through the gaps among the plurality of guide ribs 137 and the foam outlet 139 of the bone position 138, and then are divided into dense foam through the foam net 20, and flow out of the liquid outlet channel 112. The cells are shown in fig. 7, with cells 139 arranged around the bone site.

The ram 11 is released and the ram 11 is reset by the action of the all plastic elastic element 18. In the process, the channel plug 13 moves upwards, and the annular protrusion 1351 of the annular mixing wall 135 is in interference fit with the neck protrusion 1431 of the pipe column 143, so as to perform a sealing function, thereby cutting off the liquid in the gas-liquid mixing cavity 153 or the channel of the gas-liquid mixture into the gas cavity. Meanwhile, the annular barrier 144 is separated from the annular rib 133 and the annular channel wall 134 to form a gas channel, and external gas can supplement the gas in the gas chamber 151 through the channel between the annular barrier 144 and the annular channel wall 134 and the annular rib 133 and the gas through holes 147. At the same time, the valve element 161 of the valve element 16 contacts the valve seat 148 of the piston body 14, thereby shutting off the passage between the liquid chamber 152 and the gas-liquid mixing chamber 153, preventing the fluid in the gas-liquid mixing chamber 153 from flowing back into the liquid chamber 152. At the same time, as the valve member 16 moves upward, the piston body 14 is restored under the pulling force of the valve member 16, the volume of the liquid chamber 152 increases, the pressure decreases, and the valve plate 17 floats upward and is separated from the valve hole 21. The fluid in the container enters the fluid chamber 152 to complete fluid replacement in the fluid chamber 152. In this way, one foaming operation is completed.

Claims (10)

1. The utility model provides an all plastic pump type container, includes the pump structure, its characterized in that is used for producing foamy fluid, the pump structure includes pressure head, screw cap, passageway stopper, piston body, volume body, valve member, all plastic elastic element, the liquid outlet mouth is seted up to the pressure head, liquid outlet channel with the liquid outlet mouth links to each other, calls the wall that liquid outlet channel corresponds is the liquid pipe section, the all plastic elastic element is established to the cover outside the liquid pipe section, all plastic elastic element one end butt pressure head, the other end butt screw cap, the piston body includes gas plug, liquid plug, the piston body with the volume body cooperation forms gas chamber, liquid chamber, the liquid plug is cut apart the gas chamber with the liquid chamber, at least part of gas plug week side with the inner wall laminating of volume body, the pump structure includes the gas-liquid mixing chamber, at least part of passageway stopper belongs to the constitution part of gas-liquid mixing chamber, the passageway stopper passes screw cap top opening, the passageway includes annular fixed wall plug one end butt the pressure head, the other end butt screw cap, the piston body includes gas plug, liquid plug, the piston body and liquid chamber are cut off with the volume body, gas plug and gas plug can be controlled to move the motion.

2. The all-plastic pump-type container according to claim 1, wherein the channel plug comprises an annular mixing wall and a main body wall, the main body wall is positioned on the outer side of the annular mixing wall, an annular protrusion is arranged on the outer side of the annular mixing wall, the gas plug comprises a pipe column and a transverse disc, the pipe column extends from the transverse disc to the direction of the pressure head, the pipe column is positioned between the annular mixing wall and the main body wall, a pipe column gas channel is formed by a gap between the pipe column and the annular mixing wall and between the pipe column and the main body wall, an annular neck protrusion is arranged on the inner wall surface of the pipe column, and the separation and contact between the neck protrusion and the annular protrusion can realize the control of the communication and the disconnection between the pipe column gas channel and the gas-liquid mixing cavity.

3. The all-plastic pump-type container according to claim 2, wherein the channel plug comprises a flange plate, an annular rib and an annular channel wall, the annular rib and the annular channel wall extend perpendicular to the flange plate, the height of the annular rib is smaller than the height of the annular channel wall, the gas plug comprises an annular baffle column, the annular baffle column extends from the transverse plate to the direction of the pressure head, the annular baffle column is positioned outside the pipe column, the annular baffle column is positioned between the annular rib and the annular channel wall, and the separation and contact between the annular baffle column and the annular rib and between the annular channel wall can realize the control of the communication and the cutting off between external ambient gas and the gas cavity.

4. A pump-type container according to claim 3, wherein the annular passage wall is provided with a vent groove near the lower part of one side of the annular baffle column, the upper part of the annular passage wall protrudes toward one side of the annular baffle column, a gas through hole is formed in the part of the transverse disc between the pipe column and the annular baffle column, and the gas through hole is communicated with the pipe column gas passage and the gas cavity.

5. The pump-type container according to claim 4, wherein the gas plug comprises a stop collar post, the stop collar post is located on the outer side of the annular baffle post, and when the stop collar post is abutted to the flange plate, the annular baffle post is in contact with the annular rib and the annular channel wall and slightly interferes with the annular rib and the annular channel wall.

6. The pump-type container according to claim 5, wherein the gas plug comprises a valve seat, the valve member at least partially penetrates through the valve seat, the valve member at least partially is located in a space formed by the annular mixing wall, the valve member comprises a valve core, the channel plug can drive the valve member to move up and down, and further the valve core is controlled to be contacted with or separated from the valve seat, so that the cutting-off and communication control of the inner space of the pipe column and the inner space of the liquid plug is realized.

7. The pump-type container according to claim 6, comprising a container bottle, wherein the gas filling hole is provided on the peripheral side of the volume body, and the container bottle is communicated with the external environment through the gas filling hole when the gas plug is displaced downward.

8. The pump-type container according to claim 6, wherein the channel plug comprises a plurality of guide ribs and a bone site, the guide ribs are arranged in a ring shape, the bone site is provided with a central hole, the guide ribs are positioned below the bone site, and the valve member is clamped at the bone site.

9. The all plastic pump-type container of claim 8, wherein the bone site is provided with cells, the cells being arranged around the bone site.

10. The pump-type container according to any one of claims 1 to 9, wherein the pressure head comprises a periphery, a volume space is formed between the periphery and the liquid outlet pipe section, the screw cap comprises a top arm and a screw cap, the top arm is a ring column, the outer diameter of the top arm is smaller than the inner diameter of the periphery, a slit is formed between the top arm and the periphery, and an error-proof sleeve is arranged at the top arm.