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

An all-plastic pump container

Technical field

The utility model relates to the technical field of packaging containers, particularly to the technical field of pump-type containers.

Background technique

Women's pursuit of beauty also often uses liquid cosmetics, which require the use of packaging containers. At the same time, the COVID-19 epidemic has aroused society's awareness of the risks of the spread of infectious diseases. More people pay attention to their personal hygiene and need to use packaging containers for liquids such as hand sanitizer. Whether it is hand sanitizer or cosmetic liquid, foam products have been widely used. These products usually need to use pump containers. When used, they can be squeezed and sprayed to form foam as needed.

However, there are generally elastic elements in pump-type containers. Such elastic elements often use metal springs, which are prone to rust when in contact with the air. Contact with the contents will cause contamination of the contents. At the same time, the operation of this pump-type container often requires the liquid in the container to be mixed with air to form a foam. The applicant's research found that after the foam is formed, it should not re-enter the liquid space used for storage. , otherwise the liquid space will be filled with foam, which will affect subsequent liquid discharge. On the other hand, it should not enter the gas channel and cause blockage of the gas channel.

Utility model content

The purpose of this utility model is to provide an all-plastic pump-type container that will not rust and can prevent foam from flowing back.

In order to achieve the above-mentioned purpose of the utility model, the utility model provides the following technical solutions.

An all-plastic pump-type container includes a pump structure, which is used to produce foamy fluid. The pump structure includes a pressure head, a threaded cover, a channel plug, a piston body, a volume body, a valve member, and an all-plastic elastic element. , the pressure head is provided with a liquid outlet and a liquid outlet channel, and the liquid outlet channel is connected to the liquid outlet nozzle. The wall corresponding to the liquid outlet channel is called a liquid outlet pipe section, and the outside of the liquid outlet pipe section is sleeved with a full Plastic elastic element, one end of the fully plastic elastic element is in contact with the pressure head, and the other end is in contact with the threaded cover. The piston body includes a gas plug and a liquid plug. The piston body cooperates with the volume body to form a gas cavity and a liquid cavity, the liquid plug separates the gas cavity and the liquid cavity, at least part of the circumferential side of the gas plug fits the inner wall of the volume body, the pump structure includes a gas-liquid mixing cavity, so At least part of the channel plug is a component of the gas-liquid mixing chamber, and the channel plug passes through the top opening of the threaded cover. The channel plug includes an annular fixed wall, and the annular fixed wall is connected with the liquid outlet pipe section. The pressure head can drive the channel plug to move and control the connection and disconnection between the gas chamber and the gas-liquid mixing chamber. The channel plug can drive the valve member to move and control the liquid chamber and the gas-liquid mixing chamber. The connection and disconnection of the gas-liquid mixing chamber are described. In this way, the use of all-plastic elastic components makes the entire pump container material non-metal, so that the container does not have the risk of rusting. At the same time, the pressure head drives the channel plug to move, controlling the connection between the gas chamber and the gas-liquid mixing chamber. Cut off, the channel plug drives the movement of the valve, and controls the connection and disconnection between the liquid chamber and the gas-liquid mixing chamber, so that the fluid in the gas-liquid mixing chamber will not enter the gas channel and cause blockage of the gas channel, nor will it affect the rebound of the gas piston. , and at the same time, the fluid in the gas-liquid mixing chamber will not enter the liquid chamber, thereby affecting the subsequent liquid discharge.

Further, the channel plug includes an annular mixing wall and a main body wall. The main body wall is located outside the annular mixing wall. An annular protrusion is provided on the outside of the annular mixing wall. The gas plug includes a pipe column and a horizontal plate. A pipe string extends from the transverse plate toward the pressure head. The pipe string is located between the annular mixing wall and the main body wall. The pipe string is between the annular mixing wall and the main body wall. The gap forms a pipe string gas channel, and the inner wall of the pipe string is provided with an annular neck protrusion. The separation and contact between the neck protrusion and the annular protrusion can realize the communication between the pipe string gas channel and the gas-liquid mixing chamber. with cut off controls. In this way, through the cooperation of the neck convex and the ring convex, the connection and cut-off control of the pipe string gas channel and the gas-liquid mixing chamber are realized.

Further, the channel plug includes a flange, an annular rib, and an annular channel wall. The annular rib and the annular channel wall extend perpendicularly to the flange. The gas plug includes an annular blocking post, and the annular blocking column The column extends from the transverse plate in the direction of the pressure head, the annular retaining column is located outside the pipe column, the annular retaining column is located between the annular rib and the annular channel wall, the annular retaining column Disengagement and contact with the annular ribs and the annular channel wall can realize the control of communication and disconnection between the external ambient gas and the gas chamber. In this way, during the process of foaming, the gas in the gas chamber needs to be squeezed so that the gas can enter the gas-liquid mixing chamber from the gas chamber, and the external ambient gas and the gas can be cut off through the contact between the annular ribs, the annular channel wall and the annular blocking post. The passage between the cavities makes the foaming process smoother. At the same time, the study found that when the annular backstop is sealed on one side, the sealing surface is usually not easy to fit (pressing is more difficult), that is, interference is difficult to exist, and, After being used for a long time, the annular retaining post is easily deformed, thereby affecting the sealing effect. Therefore, in this solution, annular ribs are set at the same time. The annular retaining post is subject to pressure from both sides of the annular rib and the annular channel wall at the same time, making the annular retaining post less likely to deform. , the sealing effect is better.

Further, a ventilation groove is provided in the lower part of the side of the annular channel wall close to the annular blocking column, the upper part of the annular channel wall protrudes toward the side of the annular blocking column, and the horizontal plate is located between the pipe column and the annular blocking column. A gas through hole is provided in the middle part, and the gas through hole connects the column gas channel and the gas chamber. In this way, the upper part of the annular channel wall protrudes inwards, and together with the annular ribs, can form a slight overfit with the annular retaining column.

Further, the gas plug includes a limiting ring post, and the limiting ring post is located outside the annular blocking post. When the limiting ring post abuts the flange plate, the annular blocking post is in contact with the flange plate. The annular ribs are in contact with the annular channel wall and are slightly overfilled. In this way, the relative position of the gas plug and the channel plug is limited by the limiting ring column to prevent the interference fit between the annular rib, the annular channel wall and the annular retaining column from being too large, affecting the subsequent annular rib, annular channel wall and the annular blocking column. Detachment of the annular retaining post.

Further, the gas plug includes a valve seat, the valve member at least partially passes through the valve seat, the valve member is at least partially located in the space formed by the annular mixing wall, the valve member includes a valve core, and the channel plug can The valve member is driven to move up and down, thereby controlling the contact or separation between the valve core and the valve seat, thereby achieving cutting-off and connection control between the internal space of the pipe string and the internal space of the liquid plug. In this way, by arranging the valve core of the valve member and the valve seat of the gas plug, the cutting and connecting control between the internal space of the pipe string and the internal space of the liquid plug is formed, thereby controlling the backflow of the fluid in the gas-liquid mixing chamber into the liquid chamber.

Furthermore, an air supply hole is provided on the peripheral side of the volume body. When the gas plug is displaced downward, the container bottle and the external environment are connected through the air supply hole. In this way, when foaming occurs, air is added to the container bottle to prevent the pressure in the container bottle from decreasing as the liquid flows out, affecting the subsequent liquid discharging ability.

Further, the channel plug includes a guide rib and a bone position. There are a plurality of guide ribs, and each of the guide ribs is arranged in an annular shape. The bone position is provided with a central hole, and the guide rib is located below the bone position. The valve member is engaged with the bone position. In this way, through the action of the guide ribs, the gas-liquid mixed fluid is initially diverted and the foaming ability is enhanced.

Further, the bone site is provided with bubble holes, and the bubble holes are arranged around the bone site. In this way, by setting the foaming holes, the foaming ability can be further improved.

Further, the pressure head includes a periphery, and a volume space is formed between the periphery and the liquid outlet pipe section. The threaded cover includes a top arm and a spiral cover. The top arm is a ring column type, and the outer surface of the top arm is The diameter is smaller than the inner diameter of the outer periphery, a thin slit is formed between the top arm and the outer periphery, and an error-proof sleeve is provided at the top arm. In this way, gas can be exchanged between the environment and the inside of the all-plastic pump container through the slits. At the same time, the error-proof sleeve can prevent the pressure head from being pressed incorrectly, causing foaming.

Description of the drawings

Figure 1 is a schematic diagram of the pump structure implementation in the all-plastic pump container of the present invention.

FIG. 2 is a schematic cross-sectional view of the pump structure shown in FIG. 1 .

FIG. 3 is a partial enlarged view of FIG. 2 .

FIG. 4 is a cross-sectional view of the channel plug of the pump structure shown in FIG. 1 .

FIG. 5 is a schematic view of the channel plug shown in FIG. 4 in a specific direction.

Figure 6 is a schematic diagram of the piston body of the pump structure shown in Figure 1.

FIG. 7 is a schematic view of the channel plug shown in FIG. 4 in another specific direction.

Detailed ways

Figure 1 illustrates the pump structure 10 of the all-plastic pump container of the present invention for producing foamy fluid. The all-plastic pump container includes the pump structure 10. Figure 2 is a cross-sectional view of the pump structure 10 shown in Figure 1. The pump structure 10 includes a pressure head 11, a threaded cover 12, a channel plug 13, a piston body 14, a volume body 15, a valve member 16, a valve plate 17, a fully plastic elastic element 18, and a foam net 20.

The pressure head 11 has a liquid outlet 111 and a liquid outlet channel 112 . The liquid outlet channel 112 is connected with the liquid outlet nozzle 111 . The wall surface (113) corresponding to the liquid outlet channel 112 is called a liquid outlet pipe section, and a fully plastic elastic element 18, such as a fully plastic spring, is set outside the liquid outlet pipe section 113. One end of the all-plastic spring 18 is in contact with the pressure head 11, and the other end is in contact with the threaded cover 12. The pressure head 11 includes an outer periphery 114, and a volume space is formed between the outer periphery 114 and the liquid outlet pipe section 113.

The threaded cover 12 includes a top arm 121 and a spiral cover 122 . The top arm 121 has a ring-cylindrical shape, and the outer diameter of the top arm 121 is smaller than the inner diameter of the outer periphery 114, so that a thin gap is formed between the top arm 121 and the outer periphery 114, allowing gas to flow in. The all-plastic spring 18 is at least partially located in the volume space formed by the periphery 114 , the top arm 121 and the liquid outlet pipe section 113 . The top arm 121 can be provided with a mistake-proof sleeve 19 to prevent it from being pressed incorrectly. For example, when it is placed in a supermarket for sale, the mistake-proof sleeve 19 can prevent customers from pressing it mistakenly when purchasing. The spiral cover 122 has a hollow inside and an open top structure. The side wall of the spiral cover 122 is provided with threads and can be connected to a container bottle (not shown in the drawings) of an all-plastic pump type container. The threaded cover 122 is provided with mounting components for connection with the piston body 14 and the volume body 15 .

As shown in Figure 4, the channel plug 13 partially passes through the top opening of the spiral cover 122. The channel plug 13 includes an annular fixed wall 131, a flange 132, an annular rib 133, an annular channel wall 134, an annular mixing wall 135, a main body wall 136, a guide rib 137, and a bone position 138. The fixed wall 131 is engaged 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 the internal space formed by the annular fixed wall 131 . The annular rib 133 and the annular channel wall 134 extend perpendicularly to the flange 132 . A ventilation groove 130 is provided in the lower part of the annular channel wall 134 close to the annular retaining column (as shown in Figure 5), and the upper part of the annular channel wall 134 protrudes toward the annular retaining column (in the embodiment shown in Figure 2, the inner side of the annular channel wall 134 A ventilation groove is provided at the lower part, and the upper part of the annular channel wall 134 protrudes inward; in other embodiments, the annular channel wall 134 can be located inside the annular rib 133. In this case, a ventilation groove is provided below the outside of the annular channel wall 134, and the annular channel wall 134 The upper part protrudes outward). The height of the annular rib 133 is smaller than the annular channel wall 134 . The main body wall 136 is located outside the annular mixing wall 135, and an annular protrusion 1351 is provided outside the annular mixing wall 135. There are multiple guide ribs 137, and each guide rib 137 is arranged in an annular shape. The bone position 138 is provided with a central hole, and the guide rib 137 is located below the bone position 138 . The valve member 16 is engaged with the bone position 138 .

The piston body 14 and the volume body 15 cooperate to form a gas chamber 151 and a liquid chamber 152. The piston body 14, the channel plug 13 and the valve member 16 form a gas-liquid mixing chamber 153. A straw can be connected below the volume body 15.

As shown in FIG. 6 , the piston body 14 includes a gas plug 141 and a liquid plug 142 . In this embodiment, the gas plug 141 and the liquid plug 142 have an integrated structure. The liquid plug 142 is annular column type, and separates the gas chamber 151 and the liquid chamber 152 . In this article, the center line of the liquid plug 142 is taken as the axis of the all-plastic pump container. At least part of the circumferential side of the gas plug 141 is in contact with the inner wall of the volume body 15 . The gas plug 141 includes a pipe column 143, an annular blocking column 144, a limiting ring column 145, a horizontal plate 146, and a valve seat 148. The pipe column 143, the annular retaining column 144, and the limiting ring column 145 all extend from the horizontal plate 146 toward the direction of the pressure head 11. The pipe column 143, the annular retaining column 144, and the limiting ring column 145 are arranged outward in order from the center line (away from the axis). The horizontal plate 146 is partially provided with a gas through hole 147 between the pipe column 143 and the annular blocking column 144 . The valve seat 148 is disposed between the liquid plug 142 and the pipe column 143 .

The valve member 16 at least partially passes through the valve seat 148 and is located at least partially in the space formed by the annular mixing wall 135 . The valve member 16 includes a valve core 161, and the channel plug 13 can drive the valve member 16 to move up and down, thereby controlling the valve core 161 to contact or disengage from the valve seat 148. The annular mixing wall 135, the valve member 16 and the valve seat 148 form a gas-liquid mixing chamber 153.

The pipe string 143 is located between the annular mixing wall 135 and the main body wall 136. The gap between the pipe string 143, the annular mixing wall 135 and the main body wall 136 forms a pipe string gas channel. An annular neck protrusion 1431 is provided on the inner wall of the pipe string 143. The disengagement and contact between the neck protrusion 1431 and the annular protrusion 1351 can control the connection and disconnection between the gas channel of the pipe string and the gas-liquid mixing chamber 153.

The annular blocking post 144 is located between the annular rib 133 and the annular channel wall 134 . The disengagement and contact between the annular blocking post 144, the annular rib 133, and the annular channel wall 134 can realize the control of communication and disconnection between the external ambient gas and the gas chamber 151. The annular channel wall 134 is located between the annular blocking post 144 and the limiting annular post 145 .

The valve seat 148 cooperates with the valve member 16 to realize the communication and disconnection control between the internal space of the pipe column 143 and the internal space of the liquid plug 142 , that is, the communication and disconnection control between the liquid chamber 152 and the gas-liquid mixing chamber 153 .

An air supply hole 154 is provided on the peripheral side of the volume body 15 . When the gas plug 141 is displaced downward, the container bottle (not shown in the drawings) is connected to the external environment, and the gas in the container bottle is replenished to prevent the pressure in the bottle from decreasing due to the decrease in the amount of liquid in the container bottle, thereby affecting the subsequent liquid discharge. Effect.

The working principle of the pump structure 10 is as follows:

When the pressure head 11 is pressed, the channel plug 13 moves downwards driven by the pressure head 11, and gradually moves until the limiting ring post 145 contacts the flange 132. At this time, the annular blocking post 144 is located on the annular rib. 133 and the annular channel wall 134, and forms a slight interference to form a sealing effect and cut off the connection between the gas chamber 151 and the external environment. At the same time, due to the downward movement of the channel plug 13, the annular protrusion 1351 of the annular mixing wall 135 is separated from the neck protrusion 1431 of the pipe column 143, thereby connecting the gas chamber 151 with the gas-liquid mixing chamber 153, that is, the gas in the gas chamber 151 can pass through The gas through hole 147, the gap channel between the main body wall 136 and the pipe column 143, and the gap channel between the pipe column 143 and the annular mixing wall 135 are connected with the gas-liquid mixing chamber 153. At the same time, the valve member 16 moves downwards driven by the channel plug 13, and the valve core 161 of the valve member 16 separates 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 pressure head 11 continues to move downward, and the pipe string 143 is pushed downward by the channel plug 13. The entire piston body 14 moves downward relative to the threaded cover 12. At this time, the gas in the gas chamber 151 is squeezed into the gas-liquid mixing chamber. 153, at the same time, the liquid in the liquid chamber 152 is squeezed by the liquid plug 142, and enters the gas-liquid mixing chamber 153 through the liquid channel between the valve member 16 and the valve seat 148. Gas and liquid are initially mixed in the gas-liquid mixing chamber 153 to form bubbles. The bubbles pass through the gaps between the plurality of guide ribs 137 and the bubble holes 139 of the bone positions 138 to form foam, and then pass through the foam network 20 to be divided into dense foam, which flows out from the liquid outlet channel 112 . The bubble holes are shown in Figure 7, and the bubble holes 139 are arranged around the bone.

Release the pressure head 11, and the pressure head 11 will be reset under the action of the all-plastic elastic element 18. During this process, the channel plug 13 moves upward, and the annular protrusion 1351 of the annular mixing wall 135 interferes with the neck protrusion 1431 of the pipe string 143 to act as a seal, thereby cutting off the liquid or gas-liquid mixture in the gas-liquid mixing chamber 153 Access to the gas chamber. At the same time, the annular retaining post 144 is separated from the annular rib 133 and the annular channel wall 134 to form a gas channel. External gas can pass through the channel between the annular retaining post 144, the annular channel wall 134 and the annular rib 133, and the gas through hole 147 to the gas chamber. The gas in 151 is replenished. At the same time, the valve core 161 of the valve member 16 contacts the valve seat 148 of the piston body 14, thereby cutting 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 reset 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 up and separates from the valve hole 21. The fluid in the container enters the liquid chamber 152 to complete the rehydration of the liquid chamber 152 . In this way, a bubbling 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.